Answer / ranjit singh

1. Buchholz Relay
2.Over Current Relay
3. Earth Fault Relay
4. Winding Temperature Relay
5. Oil Temperature Relay

Answer / vipin chaudhary

1.Buchholz Relay
2.Over Current Relay
3. Earth Fault Relay
4. Winding Temperature Relay
5. Oil Temperature Relay
6. differential protection for internal fault

Answer / mukesh kumar

1.Oil Surge Relay
2.Pressure Relief Relay
3.Buchholz Relay
4.Winding and Oil Temperature Relay
5. Differential Protection (for Internal Fault)
6.Buchholz Relay
7.Circulating Current Relay
8.Residue Earth Fault

for a slip ring induction motor if the stator is short circuited and rotor is given supply? how does the rotor rotate?

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Your B.tech marks is being given in CGPA grade. How is it calculated?

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What is the purpose of using busbar mounting fuse?

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how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

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1.what type of oil used in tranformer. 2.oil vesocity. 3.oil gauge. 4.witch time oil filterring & how much temperature maintaned.

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why we are testing cables with DC supply not with AC supply?

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What should be the overcurrent, instantaneous overcurrent, short cicuit current settings (i.e. how many times of motor full load and what is the time duration) for a motor?

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What is mean by Sensitive Earth fault & what are the effects

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What is the suitable rating of MCB used for 1.5 Ton A.C & why?

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what is the difference between 'Control Transformer & Potential/Voltage Transformer'?

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why single CT used in DOL starter power circuit?

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what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?

0 Answers   DEWA,

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