How to increase the backup of three phase ups?

1 Answers  

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In PT the coil is wound on?

3 Answers   DVC,

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what bridge circuit is used in Tandelta circuit

1 Answers  

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What is the function of Antipumping Relay and Lockout Relay?

1 Answers  

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why we use bare wire in high tension power instead of using insulated wire?

2 Answers  

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What are root loci?

0 Answers  

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purpose of breaker contact multiplication relay?

5 Answers   ABB,

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Meaning of ingrace protection for motor.for ex IPXY

0 Answers   BARC,

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I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

1 Answers  

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How to test Alternator stability test for REF relay

0 Answers   Amprotec,

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Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers  

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We are using 4 MVA transformer and we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral, can we connect separate body earthing pit to other earthing pit (Equipment earthing)?

1 Answers  

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