WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION

0 Answers  

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what is the different ratings of ACB/VCB/SF6 which is used at HT side

3 Answers   Hosco,

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What are the earth resistance Standards of 66kv sub stations according to indian norms.

2 Answers  

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UPS battery Back time = no.of Batteries * Ah of the Battery / output KVA * 130 ? what is the 130 means ? can any one help? because all are using this formula how its came 130?

2 Answers  

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how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64

0 Answers   Cadsys,

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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.

4 Answers  

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Name the test signals used in control system

0 Answers  

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How many electrones need to flow in one second to equivalent to one Ampere.

3 Answers  

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what are the safety measure & controls in engine?

2 Answers   RRB,

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how to calculate the ct burden?

1 Answers  

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acb(AIR CIRCUIT BREAKER)NOT CHARGING AUTO

0 Answers  

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A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.

0 Answers   TCS,

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