Answer / joshykollam

Method 1 . By Color red, yellow , blue
Method 2 . By a Fluke phase sequence meter
Method 3 . By winding lead notation- u1,v1,w1 and u2,v2,w2-
curresponds to R,Y,B in the case of a transformer or motor
The easy way to use Phase sequence meter

Answer / md ibrahim

phase sequense meter

Answer / b shelar

u can be find out easy to use dark-bright lamp method.

if ELCB and RCCB connected in series,what wiil be the result

2 Answers   BEC,

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what is the difference betwteen overcurrent and short circuit fault?

3 Answers  

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why nearly all the voltage levels are in the multiples of 11 like 3.3 ,6.6 ,33 ,11 kv.....

8 Answers   Suzlon,

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Explain what is CBCT.

1 Answers  

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why the voltage and current in a long transmission line are called travelling wave?

0 Answers   UIU,

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What is the difference between MCCB and MCB ?

4 Answers   Siemens,

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over frequency is the protection of turbine or alternator?

2 Answers  

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WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

0 Answers  

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why we generate transmit and distribute electrical supply in multiple of 11

6 Answers   NHPC,

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why vaccum circuit breakers are preferred over m.o.c.b

2 Answers  

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what happens when parallel resonance occurs?

2 Answers  

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what mean by analog ,digital,numerical meters and relays? say the example?

0 Answers   ABB,

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