Answer / ajay nagar

The current transformer is used in AVR for the measurement
of current that used for feedback to the AVR system & also
used for metering purpose.

Answer / k.prakashchandra

For measurement and auto-pf mode

Am using an electronic digital display to see the RPM of ABB ACS 550 drive, which is showing negative value when the motor & drive in stop mode but it is showing correct value during the run mode. can anyone help me out??

2 Answers   Bala Power Solutions,

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why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

0 Answers  

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Explain cmrr?

0 Answers  

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What is maximum demand?How can we caluclate it?

3 Answers   TATA,

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what is the equation of insulating resistance of motor???

1 Answers   Birla,

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how do we calculate contactor and fuse rating for a motor if its full load current is known,i want exact calculation for 1.5 kw motor????

1 Answers   Allied Group, Nucon,

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What is the difference between reciprocating & rotary motors in AC units, which is the best one in terms of operation.

2 Answers   MacLellan,

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how to control the generator output voltage? what r the condition should satisfy for synchronization?

7 Answers   HP,

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we have 3 phase 4 wire supply 230/415 V.AC and our distribution is single phase or we have all single phase 220 v,ac operated appliances. and noted the current with help of clamp meter Red to N = 20 Amps. Yellow to N = 45Amps and Blue to N = 30 Amps ( total is 95 Amps ) what will be neutral current on the main .

1 Answers   ABC,

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How do u analyse protection fault when vcb tripping on load

0 Answers  

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in shunt clippers why a resistor is used in sereis with the input

0 Answers  

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What happens with squirrel induction machines if the ends of rotor conductors are kept open? Explain

5 Answers  

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