You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 Answers   ABB,

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WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .

0 Answers   Bhel,

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HT motors are generally connected in star, what will be the effect if we connect HT motor in Delta?

6 Answers   Equate, Ion Exchange,

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what should be the motor rating for pumping water for house hold use from 60km far lake and what formula is to use please tell me

1 Answers  

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what's burden resistor, why it's used?

1 Answers   Bhel, TVS Group,

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In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

0 Answers  

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what is is the potential diffrence between two phase ?

3 Answers   Bhel,

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If i connect aload to phase taken from one transformer and neutral from another what will happen.

2 Answers  

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Why battery is always operate on dc supply?

1 Answers   Vikram Ispat Industries,

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what is different between earthing and grounding for a electrical eqipment ?

2 Answers   BARC, Omega Maritime,

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how can maintaince the acb contactor moveing and fixing kit

0 Answers   Gulf Cement,

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1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

0 Answers   Areva,

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