why high speed tripping relay will be used in tripping circuit why not normal relay

0 Answers  

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i have 6oo kva dry type transformer and its neutral is not grounded even body of transformer ground i want to know it is safe or not ?

2 Answers  

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How do you calculate of power factor, if it is lagging or leading for unit(1).

4 Answers  

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Two electrically operated Vibro Motors are fixed in parallel direction in vibrating feeder. What is the direction of both Vibro Motors?

1 Answers  

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What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.

0 Answers   NFL,

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our company have 750 kva oil transformer.still we have facing a problem that is when voltage is 11.5 kv coming from HT side then LT-side voltage is 420v or above at tape 1.please give me best solution to decrease the voltage

4 Answers   Gannon Dunkerley,

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In a circuit the power factor was leading what will happen?

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i need 24v dc from 230v ac supply how we can getit ? what are the devices &its rating requied for that ? plzz i need answer urgently .thank u

3 Answers  

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give me name of current and volatge control device

1 Answers  

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What is the difference Marshaling box and RTCC (Relay tap changer circuit) Panel of transformer ?

1 Answers  

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how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

0 Answers   OPS,

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what is electrical?

15 Answers  

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