Answer / m.shoaib

Isolator is divise for energiz and disenergize of circuit and circuit breaker is divise for on load triping

Answer / ashokkumar

Isolator is opens the supply line at both ends (In and out
terminals)so the supply line is disconnected at both ends
MCB is open at one side only

__ \__ ----o / o----
In out
MCB Isolator when it opens

Answer / gaurav

Isolator means for two one phase & one neutral & mcb stands
for only one phase.

What is AVR in Generators and How is it working.

4 Answers  

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1. what is difference between VCB and ACB.how its works please explian.

6 Answers   ABB, Accenture, HP, Minda, Mother Dairy, Satyam Pharma,

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An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm

0 Answers  

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why an ac solenoid valve attract the plunger eventhough we interchanges the terminal?will the ploes changes?

1 Answers  

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Why use in ht motore

0 Answers   ACB Group,

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why single CT used in DOL starter power circuit?

0 Answers  

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sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan

0 Answers   IOCL,

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Does the total power means fundamental plus Harmonics?

2 Answers  

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wts d diff b/w C.T. & P.T.?

9 Answers  

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What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

0 Answers   ABB, Jindal,

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WHAT IS THE difference betwwen LT CABLE AND CONTROL CABLE

5 Answers  

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how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test.

1 Answers   CPCL,

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