Answer Posted / query

The correct procedure to Shut down VCB is to first trip the
VCB through Manual/electrical command . Then open the
Downstream(outgoing) isolator earth it for any trapped
charges. repaeat the same with the Upstream(Incoming)isolator.

what is the difference between earthing and unearth

3075

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impliment (AB)`+C to transistor representation

1829

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what is the difference between active power and reactive power and apparant power in practical as well as theoritical

1922

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he compression ratio for a petrol engine generally lies between

1279

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What is the ideal position cooling fan inside the dc motor?

2084

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where are the circulat the diesel in DG parts name with pictue

2130

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how the characterstics of control valve being done

2071

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What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

2710

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What is the diff. between single compression and double compression gland

1986

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do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....

2072

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What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

2161

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How to calculate earth fault current for 6.6 KV , 50 HZ , 756 Amps , 3000 RPM , 0.8 PF generator

2042

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what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?

3411

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What is difference between slip rings and carbon burushes?

15089

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how can you size an automatic voltage regulator?

2350

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