what is the wattage of 'zero watt' bulb?

16 Answers   PSEB,

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How the capacitance og capacitor volatage transformer is decided?

0 Answers  

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How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke

0 Answers   Tata Motors,

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Why the tank of transformer is made rectangular not circular??

9 Answers  

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How generator NPS(NEGATIVE PHASE SEQUENCE TEST)TEST WAS DONE? PROCEDURE WITH DETAILS?

0 Answers  

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Define transfer function?

0 Answers  

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Where is 2 phase supply used commercially?

3 Answers   NTPC,

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WHAT WILL HAPPEN IF INPUT SUPPLY OF RCBO IS CONNECTED TO OUTPUT SIDE

2 Answers   ABG Shipyard,

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Sir we have 12.5 MVA(110/11KV) transformer (Y-Y) connected,which tripped showing earth fault,when we charged transformer it stood OK ,but on connecting 11 KV feeders it tripped showing earth fault.our service engineers found that the B phase and R phase phase connecting to neutral broken from HV OLTC(on load tap changer),and R phase and Neutral is ok.Dissolved gas analysis shows that accetline content is high,tan delta value is 12.My dout is it is an internal fault of transformer,why REF or diffrential relay is not acted?

1 Answers  

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what is the difference b/w permitivity and permeability

1 Answers  

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what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?

0 Answers  

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What are the different types of cable jointing methods for HT and LT power cable?

1 Answers  

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