Answer / mihir

this test is use to find out the losses of the machine.

Answer / a.sudheer kumar

to find the stray losses of dc machine
and pre-determine the efficiency

Answer / aradhya

Retardation test is done to calculate rotor inertia.

Answer / arif

no load rotational can be found by retardation test,moment
of inertia of the machine can also be calculated.

keeping in view of parallel operation which of the 3 phase transformer connection are possible? a)delta-delta to delta-star b) delta-delta to star-delta c) star-star to delta-delta d) delta-star to star-delta

4 Answers   Ecil, Siemens,

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A electrical meter has load 500 kw. In 2 hr what rading will come on meter.

2 Answers  

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open circuit test when performed on double the voltage & double the freq, then what will happen with p.f and current magnitude?

1 Answers   Aarti Drugs,

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which MPU register provides the address from which the next instruction byte is to be fetch?

1 Answers  

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why field resistance is higher than armature resistance in dc machines? and why filed resistance is kept at min value at starting in same time of armature resistance at max value?

4 Answers  

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what is thyristor, how is it works

1 Answers   Sony,

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why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 Answers  

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What is fuction of NGT/NGR using in Generator.

9 Answers  

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c++ write a program to use a fuction call "max"which accepts an intger arrey of size5.as an arrument and return the larger and smallest of the arrey to main without changing. the original changing of the original position of the element of the arrey.

0 Answers  

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what will happen, if both relay contact has live supply, and coil of relay activated

1 Answers   AVS,

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What is the difference between MCCB,ELCB,RCB & MCB

2 Answers   Bhel, HCL, HPL,

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How much depth n width required for laying of 1X70 Sqmm Cable in Desert???

0 Answers   Alka Electromech, Aramco,

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