Answer Posted / at

for 50KW motor
p=50
I = 50x 1.2 (thumb rule)
=60 A

Size of cable : 60x0.2(thumb rule)
: 12

so min size of cable req. 12 sqmm.

what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.

3058

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How to calculate capacitor bank size at a load 800kVA.

1723

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why we used ZNO in Lightning arrester.

2013

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WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

2149

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sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

2183

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In 11/0.414 KV Parralel supply network with Bus tie closed what will be the fault level is it doubled or halved??

2077

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what is the k var ratting of 1250kva

2100

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Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

2123

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In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?

1150

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oltc of a transformer, how it works? and what are the equipment consist of describe briefly?

2031

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Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?

1840

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explain transformer ct connection?

2072

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I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

3264

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what is protection class current transformer.

4327

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How is the gain affected by the introduction of feedback in a control system.

1174

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