How to work E.L.C.B and how to connect in circuit.

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What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

0 Answers   GNFC,

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What is transposition in a transmision line?

2 Answers  

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1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

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What is the Different Between Breaker and One and half breaker.

2 Answers  

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what is the meaning of 5% droop or 7% droop in AVR?

0 Answers  

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WHY THE TRANSFORMER VALUE MEASURES IN KVA INSTEAD OF KW.

4 Answers  

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Hi, I've just got into my electrical engineering course and I need some help with a question of mine here. During a site visit, we were shown a main LT panel which has switchgears, ammeters and different kinds of relays and the distribution network from that panel. In the main LT panel I've noted down the current readings as Ir - 163A, Iy - 150A and Ib - 147A. The Line to Line voltage is 415 V at 50 Hz and Line to Neutral voltage is 230V at 50 Hz. From the above details, how would I calculate the kVA rating of transformer? The primary side voltage of the transformer is 11 kV and the secondary side voltage is 415V and the frequency is 50 Hz.

2 Answers  

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Why Hg means mecuiry used in vaccum mesuring unit?

2 Answers   Manhattan,

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IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace.

1 Answers   Jindal,

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Master trip relay code no

2 Answers   TR,

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what is difference between multimeter and transmitter

1 Answers  

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