Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

0 Answers   OEG,

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We have 2 11kv/433v transformers for 2saperate acb for mv panels and 1 bus coupler acb. Suppose I’ll close bus coupler what will happen or it will be share the load. Please suggestion and any modification required.

1 Answers  

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when transformer oil should be filtered/tested?

3 Answers  

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I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

0 Answers   HCL, TCS,

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A FIELD MAGNET IS EXITED BY AC/DC?

4 Answers  

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Ceiling Fan and Storage type water heater. Discuss

0 Answers   Satyam,

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how to select cable size?

4 Answers  

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what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?

0 Answers  

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what is relation between voltage and current and don't take resistance here. if we supose say when there is increase in voltage whwt happens to current?is it decrease or increase?

4 Answers  

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What is voltage in two phase?

7 Answers   ABB, SSG,

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can we use HT cables for LT power supply ?

1 Answers  

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Why we connect the capacitor in Delta?if we conect in Star what will happen?

9 Answers  

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