What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

0 Answers   HPCL,

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when the PFR (POWER FACTOR REGULATOR)change a step to zero,one of the RCCB will triped off,is it the changing step of this PFR effect the RCCB?

2 Answers  

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operating Lt & HT voltages used in India?

8 Answers   Essar,

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How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?

4 Answers  

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Usage of flywheel diode in relays

0 Answers   Jindal, Voith,

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What is the difference between grid and off- grid system??

0 Answers   GVK,

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for a 400kv t/m line with 10 ampere current will corona occur?

0 Answers   NPCIL,

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Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.

0 Answers  

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SMPS (Switch Mode Power Supply) unit is denoted by KW or KVA?

6 Answers  

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Does the isolator has a making capacity????????

2 Answers  

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What is protection for single phasing ?

6 Answers   SISL,

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Which motor will you choose which can operate in both lagging as well as leading power factors?

0 Answers   HPCL,

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