Answer / senthil

both are the rectifier,diode is conducted in forward
direction only,It opposes the reverse direction ,but Zenor
diode will conduct only in reverse bise, It wont conduct in
forward bise,we can use for Voltage egulator

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

0 Answers  

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Please tell me the formulaes while designing a substation for power Calculations in designing a 33 KV Substation?????

0 Answers  

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what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

0 Answers  

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One amps in HT is equal to how manys amps in LT

5 Answers  

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why it is necessary to maintain frequency constant in a power grid ?

1 Answers   NTPC,

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WHAT IS A COLOUR CODING OF 3 CORE CABLE

11 Answers  

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why the earth pin is thicker than other pins in a plug? If it is for reducing resistance, then why the copper earth wire is not so thick as earth pin of socket?

5 Answers   Omax,

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why substation rating interms of 11 multiples???like 11kv/33kv iis there any special reason???

5 Answers  

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WHY WE DO NOT TAKE THE POWER FACTOR MORE NEARER TO UNITY IN AC GENERATOR?

1 Answers  

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please design a rectifier with batteries for below requirement and also explain how you calculate this solution, Load = 700Amp DC Backup time = 6 hour. please explain briefly ?????

1 Answers   GNFC,

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how we can differentiate a motor and a generator just by a glance?

5 Answers  

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why the secondary current transformer cannot left open

1 Answers  

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