Answer / mashani

presure switch is used to shutdown the substasion if the
presure inside the substasion is abnormal....this pressure
switch will tripped all Circuit Breaker inside the
substastion

Answer / k.prakashchandra

Pressure switches are used in pneumatic circuit breakers to
maintain air pressure

without any excitation we can strt any dc or ac moter?

6 Answers   Bhel,

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please can i know about total harmonic distortion and how i can calculate it and if anyone can help me to find any program to help me to calculate THD?? please need it

1 Answers  

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sir what is the minimum IR value of 11 KV alternator?

4 Answers   Kirloskar,

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how to reduce earth to neutral voltage?

8 Answers   Field Gun Factory,

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why power not passes in plastic and rubber material

0 Answers   GPG,

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Can we operate a DG Set in paralell with Transformer ?

6 Answers   NDDB, Sobha Developers,

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In an alternator running with a balanced zero p.f. lagging load, phase differernc between the resultant armature flux and main field flux is always____? options is 180 degree....why?? explain.

1 Answers   BREB,

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Why HT voltages are expressed in 11KV,22KV,33KV and so on? (ie in times of 11)

3 Answers   Bhel, Park Hotel,

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How to measure the capacity/rating of a distribution transformer in KVA?

0 Answers  

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What is milivolt dop test in Busducts? What is its significance & procedure to do the test?

0 Answers  

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what is slip ring induction motor? How it works?

1 Answers  

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how many hvdc lines in india???

0 Answers  

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