I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1 Answers  

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Procedure for conduting vector group test on power transformers.why it is conducted?

6 Answers   Grasim,

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One watt is equal to how many? we says one watt bulb,means what it consume?

3 Answers  

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What if high voltage side circuit breaker of a ehv transformer instead of lvcb? Kindly elaborate.

0 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd,

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Transformer rating=> 15/20 MVA.Why there are two raings? What should be the rating of the fuse at the secondary if the voltage level is 13.8KV/4.16KV?

1 Answers   Bhel,

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what are eddy currents

2 Answers  

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if you asked to choose a ckt breaker from MCB & MCCB for 32A which one will be best and why??

7 Answers  

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how to find motors H.P. whout any rating? (only give you a motor and multimeter)

3 Answers   L&T,

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Can we use shunt trip coil instead of trip coil with protection relay for protection?

0 Answers  

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WITCH CARDS IN USE IN FIRE CONTROL PANEL.

0 Answers  

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when meggering a 3ph,480v oil reservoir heater on a regen gas compressor, why do I get a reading to ground when meggering phase to ground? shouldn't it read opened or is there something that makes it read closed? on the same heater, when ohming, it reads open. thanx

1 Answers  

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I have 480V Single phase and I am trying to figure how big of a transformer (KVA's) and Primary breaker size I need to provide 200 Amps at 240V for a building.

1 Answers   Wipro,

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