Answer Posted / k.prakashchandra

sotf = switch on to fault ,lbb = local bus bar backup , pole
discrepancy = in 3 phase individually operated circuit
breaker ,all the three poles should close simultaneously
,otherwise there will be pole discrepancy .i.e, time lag
while closing .

What is the equivalent circuit of a transformer and its vector diagram?

2641

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1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

2235

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Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above

1830

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What are the disadvantages of autotransformer?

1070

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i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.

2033

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Why does the radius of armature is less than the radius of pole shoe?

2107

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ratings of lightning arrester

2001

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What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

1626

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What is Instantaneous Earth fault relay,how will work

2154

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What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?

1845

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what is the practical application of full adder circuit?

1801

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what is method for testing CT

2095

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What is cut-off rate?

1160

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What is your acheivements

2101

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i applied for the ap transco please forward the freqventley asked QA

1952

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