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In hopkinson's test following data obtained Supply voltage:250 Field current of generator:6A Field current of motor:5A Line current &motor current :50A&400A Armature Resistance:0.015ohm Find efficiency of motor and generator?
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In hopkinson's test following data obtained Supply voltage:250 Field c...
: 35A Power factor: 0.8

To calculate the line current, we first need to calculate the armature current of the generator and motor.

Armature current of generator = Line current + Field current of generator
= 35A + 6A
= 41A

Armature current of motor = Line current - Field current of motor
= 35A - 5A
= 30A

Now, we can calculate the power input to the system:

Power input = Supply voltage x Line current x Power factor
= 250 x 35 x 0.8
= 7000 watts

Next, we can calculate the power output of the system:

Power output = (Armature current of generator x Armature voltage of generator) - (Armature current of motor x Armature voltage of motor)

We don't have the armature voltage values, so we can't calculate the power output.
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In hopkinson's test following data obtained Supply voltage:250 Field c...
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In hopkinson's test following data obtained Supply voltage:250 Field current of generator:6A Field current of motor:5A Line current &motor current :50A&400A Armature Resistance:0.015ohm Find efficiency of motor and generator?
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