Answer / deepak

ISOLATOR CONNECTOR DRAWS HIGH MAGNITUDE OF CURRENT. THE
MOVING AND FIXED CONTACT IF HAS HIGH CR THAN LOTS OF SPARK
AND HEAT WILL BE GENERATED WHICH MAY DAMAGE THE CONTACT
SURFACE AND REDUCE THE LIFE OF THE ISOLATOR CONTACT.
NORMALLY PETROLEUM JELLY IS APPLIED TO REDUCE THE CRT AND
for SMOOTH OPERATIONS. THE LOWER THE CRT BETTER IS THE LIFE
AND OPERATION OF ISOLATOR.

what is the use of power transformer in GSS.

0 Answers   College School Exams Tests, DLF, TCS,

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As a good company employee, can you report your supervisor to the company management if he or she is going against the company interest in his or her actions?

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I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.

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why all selected supply voltages are multiple of 11.i.e440,11 kv,33 kv,66 kv,110 kv etc

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If We are converting the SINGLE PHASE AC into THREE PHASE AC by using STATIC CONVERTERS , then How do we bring the frequency to 50 hz??

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What is the previous name of Cox's Bazar

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1)why the transformer rating in KVA insted of KW 2)why the secondary of ct is shorted and why the PT secondary is open

3 Answers  

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when we r using 3.5 cable for a bldg. and put laod on each phase using the neutral and neutral is the return paht for the phase so the current of the neutral must be Ir+Ib+iY (return).But the size of the netural is .5 as comper to the phase.

2 Answers  

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open circuit test when performed on double the voltage & double the freq, then what will happen with p.f and current magnitude?

1 Answers   Aarti Drugs,

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