In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

0 Answers   PPIL,

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what is the instataneous value of voltage in a 3-phase balanced star connected circuit?

6 Answers  

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What is the instrument to check the rotating diode fuse of alternator in running conditions?

0 Answers  

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can any one tell me the formula to select the thickness of wire selection according to ampere rating

2 Answers  

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wht do u mean by load in circuit.wht dp u mean by inductive load

7 Answers   SGS,

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why do we use magnetic contactors ?circuit breakers are not enough?

5 Answers  

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Explain difference between aluminium coductor & copper coductor.

4 Answers  

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Why we use modulus with voltage in stability equation that is P=[E][V]SIN@/X WHY VOLTAGE IS IN MODE VALUE WHAT IS THE REASON?

1 Answers   Bhel,

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What is difference between slip rings and carbon burushes?

2 Answers   Hyundai, IVRCL,

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sir, i am 3 years diploma course pass out candidate.what type of certificate can i got in marine service.

0 Answers  

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IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

0 Answers   ABB,

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Whatis the procedure for getting Electrical (light) licence while Iam a diploma holder in electrical Engg . I Compleated my one yr Apprentice training & worked as a junior engineer (ele) for 2 yr(contract basis).

1 Answers   TVS,

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