Answer Posted / ravi kumar

Safety of vcb :[ Vacuum circuit breaker]
1: Earth fault relay
2: Master trip relay
3: Supervision relay
4: Short circuit
5: Shunt relay
6: Closing coil

what is the difference b/w absolute encoder and incremental encoder?

2140

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if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

2609

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A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

2007

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i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.

2262

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Why is the air gap between the pole pieces and the armature kept very small?

1443

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Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632

2813

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types of central Air conditioner plant?

2210

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Which types of gate insttaled in static switch. Please give me answer.

1670

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If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

2066

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what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

5477

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what is the condition for YnD11

2615

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What are the main faults of DC generators?

3067

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How to calculate the Efficiency of Chiller

3394

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How generating electric power export to grid from the generating station ?

1928

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Why we are use dol starter up to 10 hp

1432

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