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08 Jul 2014

Why AC rated in Tons, Not in kW or kVA? A Guide about Airconditioner and Refrigeration

<h2 class="post-title entry-title">
<a href="http://www.electricaltechnology.org/2014/02/why-AC-rated-in-Tons-Not-in-kW-or-kVA.html">Why AC rated in Tons, Not in kW or kVA? A Guide about Airconditioner and Refrigeration</a>
</h2>
<br />
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">If you pick this article, You will be able understand; <br />
</span><span style="font-family: "Arial","sans-serif";">→ Why AC rated in Tons,
Not in kW?<br />
→ Definition of Ton</span><br />
<br />
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">→ </span><span style="font-family: "Arial","sans-serif";">How
many kW and HP are there in 1 Ton?</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">→ </span><span style="font-family: "Arial","sans-serif";">How
to convert Ton to Kw and vice versa?</span><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";"><br />
→ </span><span style="font-family: "Arial","sans-serif";">How much Current in
Ampere will a 2 Tons AC draw in Single Phase & Three Phase</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-indent: 13.5pt;">
<span style="font-family: "Arial","sans-serif";">System?</span><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";"><br />
→ How many 2 Ton A.C (Air conditioner) can I run on a 25 kVA Generator?</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">→ <span style="mso-bidi-font-weight: bold;">What is the suitable rating of MCB for 2 Ton
and 1 Ton AC (Air conditioner) and why?</span></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-indent: 13.5pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">and much more...</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 0.0001pt; text-align: center; text-indent: 13.5pt;">
<span style="color: blue;"><i><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";"> </span>Click image to enlarge</i></span></div>
<div class="separator" style="clear: both; text-align: center;">
<span class="usercontent"><b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif";"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhR0YDXMH4fr1nZHE0eufVTUN4uadH0HBQ-AVkFmImViAJJVudPwUWHQJcSRkxavwnHdX7n_FNleqByVS2EDJKF6xsj17wm0BzwyZHJXvaNUNaDvME5-UEuyBGO1cKVWFkcCTAzfMA_KSrL/s1600/555.jpg" style="margin-left: 1em; margin-right: 1em;"><img alt="Why AC rated in Tons, Not in kW or kVA" border="0" height="298" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhR0YDXMH4fr1nZHE0eufVTUN4uadH0HBQ-AVkFmImViAJJVudPwUWHQJcSRkxavwnHdX7n_FNleqByVS2EDJKF6xsj17wm0BzwyZHJXvaNUNaDvME5-UEuyBGO1cKVWFkcCTAzfMA_KSrL/s1600/555.jpg" title="Why AC rated in Tons, Not in kW or kVA? A Guide about Airconditioner and Refrigeration" width="400" /></a></span></b></span></div>
<span class="usercontent"><b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif";">
</span></b></span>
<br />
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span class="usercontent"><b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif"; font-size: 14.0pt;"> Why AC rated
in Tons, Not in kW?</span></b></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">AC (Air-conditions and
Refrigeration are always rated in Tons.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span class="uficommentbody"><span style="font-family: "Arial","sans-serif";">Air
conditioners are always rated in </span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">T</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";">ons
capacity</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">
instead of kW because</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";"> Air conditioners are designed on the
basis of quantity of heat removal from </span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">room,</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";"> hall</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;"> or specific area</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";">. Quantity
of heat is termed in </span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">T</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";">ons means
if an air conditioner is </span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">able to remove 1000 kilocalories of heat
or 4120 kilojoules</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";"> </span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">or </span></span><span style="font-family: "Arial","sans-serif";">12000 BTU <span class="uficommentbody">of
heat in an hour that AC rated as 1 </span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">Ton</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";"> of AC
because 1000 Kilocalories or 4</span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-fareast-theme-font: major-fareast;">120 kilojoules or 12000 BTU equal to one
Ton </span></span><span class="uficommentbody"><span style="font-family: "Arial","sans-serif";">of
heat. Also, this is the same case for freezer and refrigerator i.e.
refrigeration system.</span></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span class="uficommentbody"><b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">Good to know:</span></b></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span class="uficommentbody"><span style="font-family: "Arial","sans-serif";">BTU
= British thermal unit. A measurement of heat, specifically, the amount of heat
needed to raise the temperature of a pound of water by 1</span></span><span style="font-family: "Arial","sans-serif";">°F.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span class="uficommentbody"><b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif"; font-size: 14.0pt;">Definition
of Ton</span></b></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">A <span style="mso-bidi-font-weight: bold;">Ton of refrigeration</span> (<span style="mso-bidi-font-weight: bold;">R<sub>T</sub></span>) is approximately
equivalent to 12,000 BTU/h or 3,516.8528 W or 4.7142Hp.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">A <span style="mso-bidi-font-weight: bold;">Ton of refrigeration</span> (<span style="mso-bidi-font-weight: bold;">R<sub>T</sub></span>) is a unit of power used
to describe the heat-extraction capacity of air conditioning and refrigeration
equipments. It is defined as the heat of fusion absorbed by melting 1 short ton
of pure ice at 0 °C (32 °F) in 24 hours.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif"; font-size: 14.0pt; mso-bidi-font-size: 11.0pt;">How
many kW and HP are there in 1 Ton?</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">1
Ton = 3.5168525 kW = 4.714Hp</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">Explanation</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">1 Ton = 12,000 BTU/h<br />
1 Watt = 3.412141633 BTU/h</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">1 Ton = 12,000 /
3.412141633 = 3,516.8528 Watts = 3.5168528 kW.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">1
Ton</span></b><span style="font-family: "Arial","sans-serif";"> = 3,516.8528
Watts = <b style="mso-bidi-font-weight: normal;">3.516 kW.</b></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Also</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">1 Ton = 3,516.8528W /
746 = 4.7142798928 Hp →→→ (1 Hp = 746 Watts)</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">1
Ton = 4.714 Hp</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif"; font-size: 14.0pt; mso-bidi-font-size: 11.0pt;">How
to convert Ton to Kw and vice versa?</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">One R<sub>T</sub>
(Refrigeration Ton) = 3.5168528 kW…</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">1 R<sub>T </sub>=
3.5168528 kW</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">1 kW = 0.284345<sup> </sup>R<sub>T</sub>
(Refrigeration Ton)</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">1 kW = 0.28434517 R<sub>T</sub></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">So,</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">The power <span style="mso-bidi-font-style: italic;">P</span> in kW = Power <span style="mso-bidi-font-style: italic;">P</span> in R<sub>T</sub> (Refrigeration
Ton) times 3.5168528….</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-bidi-font-style: italic;">P</span><sub><span style="font-family: "Arial","sans-serif";">(kW)</span></sub><span style="font-family: "Arial","sans-serif";"> = <span style="mso-bidi-font-style: italic;">P</span><sub>(RT)</sub> × 3.5168528</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">Example</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Convert 3 Ton AC into kW
i.e. Convert 3 R<sub>T</sub> to kW.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-bidi-font-style: italic;">Solution:</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-bidi-font-style: italic;">P</span><sub><span style="font-family: "Arial","sans-serif";">(kW)</span></sub><span style="font-family: "Arial","sans-serif";"> = 3 R<sub>T</sub> × 3.5168528</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-bidi-font-style: italic;">P</span><sub><span style="font-family: "Arial","sans-serif";">(kW)</span></sub><span style="font-family: "Arial","sans-serif";"> = 10.55 kW</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">3
Ton AC = 10.55 kW</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif"; font-size: 14.0pt; mso-bidi-font-size: 11.0pt;">How
much Current in Ampere will a 2 Tons AC draw in Single Phase & Three Phase
System?</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Suppose, There are 230V
and Power factor = </span><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">Cos</span><span style="font-family: "Arial","sans-serif";">θ = 0.95 in <a href="http://www.electricaltechnology.org/2013/09/single-phase-ac-circuits-library.html">Single
Phase AC system</a>…</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">1 Ton = 3,516.8528 Watts
= 3.516 kW.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">2 Ton = 2 x 3.516 kW = 7.032kW
= 7032W</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Power in a Single Phase
AC System</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">P = VxI Cosθ and current…</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">I = P / (V x Cosθ)</span><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">
….. Where Cos</span><span style="font-family: "Arial","sans-serif";">θ = <a href="http://www.electricaltechnology.org/2013/07/power-factor.html">Power
factor</a></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">I = </span><span style="font-family: "Arial","sans-serif";">7032W
/ (230V x .95)</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">I = 32.18 A</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">Therefore, a 2 Ton AC (Air-condition in Single Phase AC
system will take 31.18 Ampere Current</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">And</span></b><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">
in Three Phase System</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Suppose, There are 440V
and Power factor = </span><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">Cos</span><span style="font-family: "Arial","sans-serif";">θ = 0.85 in <a href="http://www.electricaltechnology.org/2013/09/three-phase-ac-circuits-library.html">Three
Phase AC system</a>…</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Power in a Three Phase
AC System</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">P =√3 x V<sub>L</sub>xI<sub>L</sub> Cosθ and current….</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">I = P /( <span class="nowrap">√3xVxCos</span>θ)</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">I = 7032W / (1.732 x 440V
x .85)</span><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";"> Where Cos</span><span style="font-family: "Arial","sans-serif";">θ
= Power factor and <span class="nowrap">√3 = 1.732</span></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">I = 10.855 A</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">Therefore, a 2 Ton AC (Air-condition in Three Phase AC
system will take 10.855 Ampere Current</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">Good to Know:</span></b><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">
This is just calculation based on </span><span style="font-family: "Arial","sans-serif";"><a href="http://www.electricaltechnology.org/2013/10/electrical-formulas.html"><span style="mso-fareast-font-family: "Times New Roman";">Electrical formulas</span></a></span><span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">.
In real, Air conditioner </span><span style="font-family: "Arial","sans-serif";">current
depends a lot on operating conditions such as ambient temperature, refrigerant
pressure, Energy Efficiency Ratio (EER) etc. for instance, if EER is 6, then
input power for 2 Tons Air conditioner is 24000BTU/ 6 = 4000 watts.. <br />
If this is a 230 volt system, then air conditioner load current would be = 4000/(230x.95)
= 18.5 A</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">For More detail…Check
the Air conditioner Name plate rating.<br />
Another similar rating is Coefficient of power (COP) which is the output power
in watts divided by input power, so with a COP = 1.8, for instance, input power
for 2 Tons Air conditioner <span style="mso-spacerun: yes;"> </span>is 7032W / 1.8
= 3906 watts. Now you can find current by using the above method which is equal
to 18A approx.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif"; font-size: 14.0pt; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">How many 2 Ton A.C (Air conditioner) can I run
on a 25 kVA Generator?</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">2 Ton = 2 x 3.516 kW =
7.032kW = 7032W</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">The Efficiency of Utility Power Generator is 90%
approximately.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">Efficiency of Generator = 25kVA x (90/100) = 22.5kVA</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">Now the Number of 2 Ton AC (Air conditioners) which you can
run on a 25 kVA Generator smoothly..</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman";">22.5kVA / </span><span style="font-family: "Arial","sans-serif";">7032W</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">=
3</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">So you can run Three Air
conditioners of <b style="mso-bidi-font-weight: normal;">2 Tons </b>each on a <b style="mso-bidi-font-weight: normal;">25kVA </b>Generator.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif"; font-size: 14.0pt;">What is the suitable rating of
MCB for 2 Ton and 1 Ton AC (Air conditioner) and why?</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">As we have calculated
the load current for 2 Ton AC Air conditioner...</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Calculated Current for 2
Ton A.C = I = 32.18 A</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Now 40A Class “C” MCB
(miniature circuit breaker) would be suitable for 2 Ton AC (air-condition)
because in starting time it takes more current of the full load current</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">And 20 A Class “C” MCB
would be better for 1 Ton AC (air-condition)</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Arial","sans-serif";">Good
to Know:</span></b></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Class “'C' Type MCBs</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";">Class “C” Type MCBs are
suitable for installations with high inrush of current at the starting switching
time. in other words, equipment and devices having inductive loads such
as air-conditioners, induction motors, fluorescent lamps, <a href="http://www.electricaltechnology.org/2012/02/why-transformer-rating-in-kva-not-in-kw.html">transformers</a>
etc.</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";"> </span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<span style="font-family: "Arial","sans-serif";"> </span><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
</div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 0.0001pt; text-align: center;">
<span style="font-family: "Arial","sans-serif";">A general AC (Airconditioner )Name plate rating Data</span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 0.0001pt; text-align: center;">
<span style="font-family: "Arial","sans-serif";"><span style="color: blue;"><span style="background-color: white;"><i>Click image to enlarge</i></span></span></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 0.0001pt; text-align: center;">
<span style="font-family: "Arial","sans-serif";"><span class="usercontent"><b style="mso-bidi-font-weight: normal;"><span style="color: #0066ff; font-family: "Arial","sans-serif";"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXyVep-YIPg7wGcsDQKJbl5RTI0EeQAlalJwFvapsL3sPk1TH-HGzKqYDNNt6Yfgy2cUkwAMosQNMngRzwSEnRWUg7f3xgC_UXz6XtitoQdGA-mx8I_HEbsMFd5tDuoGrGZjJ4WXiejWFm/s1600/123.jpg" style="margin-left: 1em; margin-right: 1em;"><img alt="A general AC (Airconditioner )Name plate rating Data" border="0" height="174" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXyVep-YIPg7wGcsDQKJbl5RTI0EeQAlalJwFvapsL3sPk1TH-HGzKqYDNNt6Yfgy2cUkwAMosQNMngRzwSEnRWUg7f3xgC_UXz6XtitoQdGA-mx8I_HEbsMFd5tDuoGrGZjJ4WXiejWFm/s1600/123.jpg" title="Why AC rated in Tons, Not in kW or kVA? A Guide about Airconditioner and Refrigeration" width="320" /></a></span></b></span> </span></div>
</div>

Why AC rated in Tons, Not in kW or kVA? A Guide about Airconditioner and Refrigeration

Why AC rated in Tons, Not in kW or kVA? A Guide about Airconditioner and Refrigeration If you pick this article, You will be able understand; → Why AC rated in Tons, Not in kW? → Definition of Ton →…

08 Jul 2014

Electrical Wiring

<div style="text-align: center;">
 <span style="font-family: Times,"Times New Roman",serif;"><span style="font-size: medium;"><span style="color: red;"><b> </b></span></span></span><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjr5Ajzu3uy5stmwznJI4oe9ndwUtftDPuGwV-fBf-2G7xA7qUiGt16VhrPD9z-pl96_DAviTc_MaBiSABgDBL4Y-uV7WUAR7xPwRzscl8muA6BGWAw-vwtXwRHFx3gn-FYSmnnRfmslhUf/s1600/Basic+Electrical+Wiring,+Solar+panel+wiring,+Batteries+wiring,+UPS+wiring,+Single+phase+and+three+pahse+wiring+-+Copy.JPG" style="margin-left: 1em; margin-right: 1em;"><img alt="basic electrical wiring installation" border="0" height="260" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjr5Ajzu3uy5stmwznJI4oe9ndwUtftDPuGwV-fBf-2G7xA7qUiGt16VhrPD9z-pl96_DAviTc_MaBiSABgDBL4Y-uV7WUAR7xPwRzscl8muA6BGWAw-vwtXwRHFx3gn-FYSmnnRfmslhUf/s400/Basic+Electrical+Wiring,+Solar+panel+wiring,+Batteries+wiring,+UPS+wiring,+Single+phase+and+three+pahse+wiring+-+Copy.JPG" title="Basic Electrical Wiring, Solar panel wiring, Batteries wiring, UPS wiring, Single phase and three pahse wiring - Copy" width="400" /></a></div>
<span style="font-family: Times,"Times New Roman",serif;"><span style="font-size: medium;"><span style="color: red;"><b>1.   Basic Electrical Home
Wiring Diagrams</b></span>
</span></span><br />
<ol style="text-align: left;">
<li><span style="background: white; font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-wire-switches-in-series.html" target="_blank">How To Wire Switches In Series?</a></span></li>
<li><span style="background: white; font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-wire-switches-in-parallel.html" target="_blank">How To Wire Switches in Parallel?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/series-wiring-lighting-circuits.html" target="_blank">How To wire Lamps in Series?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/parallel-wiring-for-lighting-circuits.html" target="_blank">How To Wire Lamps in Parallel?</a></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2013/10/working-and-construction-of-electric-phase-or-line-tester.html" target="_blank">Workingand Construction of Electric Phase or Line Tester</a></span><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-font-weight: bold; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"> </span><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"> </span></li>
<li><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"><a href="http://www.electricaltechnology.org/2013/10/How-to-determine-the-suitable-size-of-cable-for-Electrical-Wiring-Installation-with-Solved-Examples-in-both-British-and-SI-System.html" target="_blank">Howto determine the suitable size of cable for Electrical Wiring Installation withSolved Examples (in both British and Si System)</a></span></li>
<li><span style="color: black;"><a href="http://www.electricaltechnology.org/2014/04/electrical-wire-cable-size-calculator.html" target="_blank"><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"> Electrical Wire & Cable Size Calculator (Copper & Aluminum)</span></a></span></li>
<li><span style="color: black;"><a href="http://www.electricaltechnology.org/2014/04/wire-cable-size-calculator.html" target="_blank"><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"> Wire & Cable Size Calculator in AWG</span></a></span>
</li>
<li><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-font-weight: bold; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"><a href="http://www.electricaltechnology.org/2013/10/diversity-factor-in-electrical-wring-installation.html" target="_blank">Diversity Factor in Electrical Wiring Installation</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/parallel-wiring-for-lighting-circuits_6.html" target="_blank">Parallel wiring for Lighting Circuits OR How To Wire Lampsin Parallel?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-wire-single-phase-kwh-meter.html" target="_blank">How To Wire a Single Phase kWh meter (Digital or AnalogEnergy Meter) from the Supply to The Main Distribution Board (MDB)?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-wire-3-phase-kwh-meter-from.html" target="_blank">How To Wire a 3-Phase kWh meter from the Supply to The MainDistribution Board?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-control-lamp-by-single-way-or.html" target="_blank">How to Control a Lamp by a Single Way or One-way Switch?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-control-each-lamp-by-separately.html" target="_blank">How to control each lamp by separately switch in parallellighting circuit?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/stair-case-wiring-circuit-diagram-or.html" target="_blank">Stair case wiring circuit diagram, OR How to control a lampfrom two different places by two ,2-way switches?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-control-one-lamp-from-three.html" target="_blank">How to control One Lamp from three different places? (byusing two, 2-Way switches and one intermediate switch)</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-control-one-lamp-from-six.html" target="_blank">How to control one lamp from six different places by usingtwo, 2-way switches and four intermediate switches?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/what-is-intermediate-switch-its.html" target="_blank">What is Intermediate switch, its construction, workingprinciple and using in different wiring (lighting etc) circuits?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/automatic-ups-system-wiring-circuit.html" target="_blank">Automatic UPS system wiring circuit diagram (New Design Verysimple) for Home or Office</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/automatic-ups-system-wiring-circuit_23.html" target="_blank">Automatic UPS system wiring circuit diagram for Home orOffice (New Design With One Live Wire) </a> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/automatic-ups-system-wiring-diagram-in.html" target="_blank">Automatic UPS System Wiring Diagram in Case of some itemsdepends on UPS and rest depends on Main Power at Office or Home. </a>
</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/manual-ups-wiring-diagram-with-change.html" target="_blank">Manual UPS Wiring Diagram With Change Over Switch System.</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-wire-solar-panel-to-12v-battery.html" target="_blank">How to Wire Solar Panel to 12V battery and 12V,DC Load (12VDC fan, light etc / DC Load Only)?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/11/how-to-wire-solar-panel-to-220-v.html" target="_blank">How to Wire Solar Panel to 220 V inverter, 12V battery,12V,DC Load and 220V AC Load(220V fan, light etc / AC & DC Load)?</a></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2013/11/series-parallel-and-series-parallel-connection-of-batteries.html" target="_blank">Series,Parallel and Series-Parallel Configuration of Batteries</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/series-connection-of-batteries-with.html" target="_blank">Series Connection of Batteries with Solar Panel.or How toWire 24 V Solar Panel to Two, 12V batteries ,with Automatic UPS System? </a> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/series-connection-of-solar-panel-and.html" target="_blank">Series Connection of Solar Panel and Parallel Connection ofBatteries with Automatic UPS System. (OR) How To Wire Two 6V Solar Panel ToTwo, 12V Batteries with Automatic UPS System.</a> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/how-to-wire-12-v-solar-panel-to-two-12v.html" target="_blank">Parallel Connection of Batteries with Solar Panel or How toWire 12 V Solar Panel to Two, 12V batteries ,with Automatic UPS System?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/how-much-watts-solar-panel-we-need-for.html" target="_blank">How much Watts Solar Panel We need for our Home Electricalappliances?</a> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/how-to-wire-two-24v-solar-panels-in.html" target="_blank">How To Wire Two 24V Solar Panels in Parallel with Two, 12VBatteries in Series with Automatic UPS System (For 24 V System)? (OR) ParallelConnection of Solar Panel and Series Connection of Batteries with Automatic UPSSystem</a>.</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/how-to-determine-number-of-lamps-in.html" target="_blank">How to Determine the Number of Lamps in Final Sub Circuit?</a> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/how-to-findcalculate-number-of.html" target="_blank">How To Find/Calculate the Number of Fluorescent Lamps in aSub Circuit?</a> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/what-is-objection-to-have-lamps-in.html" target="_blank">What is the objection to have lamps in a house-lightingcircuit connected in series?</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://electricaltechnology1.blogspot.com/2012/12/how-to-install-ceiling-fan-with-dimmer.html" target="_blank">How to install a ceiling Fan with a Dimmer Switch (Part 1)?</a>.</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2013/05/how-to-connectinstall-capacitor-with.html" target="_blank">How to connect/install a Capacitor with a Ceiling Fan (Part2)</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2013/05/a-complete-note-on-solar-panel.html" target="_blank">A Complete Note on Solar Panel Installation. Calculationabout No of Solar Panels, batteries Rating / Backup time, Inverter/UPS Rating,Load and required Watts. with Circuit Diagrams.</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2012/02/star-delta-3-phase-motor-starting.html" target="_blank">The Star-Delta (Y-Δ) 3-phase Motor Starting Method byAutomatic star-delta starter with Timer. </a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2013/05/wiring-of-distribution-board-with-rcd.html" target="_blank">Wiring of the Distribution Board with RCD , Single Phase,(from Energy Meter to the main Distribution Board) Fuse Board Connection.</a> </span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2013/06/room-air-cooler-wiring-diagram-1.html" target="_blank">Room Air Cooler Wiring Diagram # 1</a></span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2013/06/room-air-cooler-wiring-diagram-2-with.html" target="_blank">Room Air Cooler Wiring Diagram # 2.(With Capacitor marking and Installation)   </a></span><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"> </span></li>
<li><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"><a href="http://www.electricaltechnology.org/2013/12/three-phase-electrical-wiring.html" target="_blank">ThreePhase Electrical Wiring Installation in Home</a></span><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-font-weight: bold; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"> </span></li>
<li><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-font-weight: bold; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"><a href="http://www.electricaltechnology.org/2013/12/single-phase-electrical-wiring-installation-in-multi-storey-building.html" target="_blank">Single-Phase Electrical Wiring installation in a Multi-StoryBuilding</a></span><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"> </span></li>
<li><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-ascii-theme-font: major-latin; mso-bidi-font-weight: bold; mso-hansi-theme-font: major-latin;"><a href="http://www.electricaltechnology.org/2013/12/Three-phase-electrical-wiring-in-multi-storey-building.html" target="_blank">Three-Phase Electrical Wiring installation in a Multi-Story Building</a></span>
</li>
<li><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"><a href="http://www.electricaltechnology.org/2013/11/how-to-connect-portable-generator-to-home-supply.html" target="_blank">Howto Connect a Portable Generator to Home Supply System (Three Methods)</a></span></li>
<li><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2014/01/basic-electrical-engineering-tools.html" target="_blank">Basic Electrical Engineering Tools and Their Uses</a> </span></span></span></li>
<li><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2014/01/testing-electrical-and-electronics-components-with-multimeter.html" target="_blank"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";">Testing Electrical and Electronics Components and Devices with Multimeter </span></a> </span></span> </span></li>
<li><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-bidi-font-weight: bold;"><span style="mso-bidi-font-family: Arial;"><a href="http://www.electricaltechnology.org/2014/04/design-simulation-tools-Electrical-Electronics-Engineers-Online.html" target="_blank">10+ Design & Simulation Tools for Electrical/Electronics Engineers Online</a></span></span></li>
<li><span style="font-family: "Cambria","serif"; font-size: 11.0pt; font-weight: normal; mso-bidi-font-weight: bold;"><a href="http://www.electricaltechnology.org/2014/01/must-have-android-apps-for-electrical-electronics-engineers.html" target="_blank"><span style="mso-bidi-font-family: Arial;">15 Must Have Android Apps for Electrical& Electronics Engineers & Students </span></a></span></li>
<li><span style="font-family: "Cambria","serif"; mso-ascii-theme-font: major-latin; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-hansi-theme-font: major-latin;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-fareast-font-family: "Times New Roman";"><a href="http://www.electricaltechnology.org/2014/02/why-AC-rated-in-Tons-Not-in-kW-or-kVA.html" target="_blank">Why AC rated in Tons, Not in kW or kVA? A Guide about Airconditioner and Refrigeration</a></span></span> </span></li>
</ol>

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Make Your Own Browser

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<a href="http://www.dailymotion.com/video/x1u1udx_how-to-make-a-web-browser_news" target="_blank">How To Make A Web Browser</a> <i>by <a href="http://www.dailymotion.com/Tutorialzone" target="_blank">Tutorialzone</a></i>