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We have a 1275KVA existing Transformer in a power plant project. Customer want to get it test & confirm whether it is a Dyn1 Transformer or not. Pleae let me know how to test it.
1 3964why Transformers power mentioned in KVA?. and why Generators and Motors power mentioned in KW?.
10 14519What is the purpose of Rotor earth fault relay and How to test the Rotor earth fault relay in generators and What is the procedure?.
1 4416why there is no current in the rotor body althrough the flux linking with it also get changes. why current only flows in windinds not in rotor
1 5416why we use condenser in the thermal power plant, althrough the same vapour will be again heated
Bhel,
2164WHEN SINGLE PHASE SUPPLY AS 220V, WHY THE 3 PHASE- 4 WIRE MEASURED AS 440 VOLTS INSTEAD OF 660 VOLTS (220 VOLTS PER PHASE i.e 220x3 = 660 volts ).
1 6374In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?
1979Post New Electrical Engineering Questions
How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?
What do you mean by an instrument transformer?
for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance
Which is the oldest hydropower plant in india?
determine two methods to find loose connection in operational electrical system?
Why magnetic flux produces an induced current?? what is the detailed procedure ?? ans plz
What is earth?
what is a power factor?
witch pump used in wtp
What is stepper motor. What is its uses?
What is the difference between isolators and electrical circuit breakers? What is bus-bar?
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
how calculate gd2 of ht motors
What happens if we give the supply to the rotor of induction motor and make its terminal shorted?
Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.
