Answer / rajesh kumar reddy

if we give ac supply to dc loads the heat will be developed
due tom the presence of frequency in ac supply.

Answer / ibrahim

for example if we give ac supply to dc motor which coverts
ac into dc insie motor which cause heating the winding.......

Answer / sachin

If we provided DC supply to AC Load it wont work can burn
the load.

and DC volt if provided to AC Load will burn the load.

dear all, in motor operation , motor is of 100 hp and bimetal relay setting is 130 amp, if relay is getting tripped on 120 amp balance current what can be the reason? Relay is newly replaced. I dont know but is there any frequency effect in thit case? Can frequency variation affect bimetal relay operation?

1 Answers  

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what is the difference between MCB & MCCB

3 Answers  

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sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me

0 Answers   HPCL,

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how much amps can i connect for 4core 120mm armade cable

2 Answers  

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What are the applications of the electric motors?

0 Answers  

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what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)

0 Answers  

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Advantages of using bundled conductors ?

3 Answers  

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what is proper capacitor placement? How to evaluate capacitor size?

0 Answers   CPCL,

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How to calculate the cable size in sq. mm. when the load is given in KW?

1 Answers  

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How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.

0 Answers   El Seif,

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What is mimimum di -electric strength value for 33 KV transformer OLTC oil

0 Answers   Franke Faber,

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we can use airconditioner for cooling the winding of transformer ,if not why?

3 Answers  

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