Answer / haneef khan gtr

Drives have to use for starting motor smoothly and control
the speed of its( as per requirement)except its it protect
the motor by any fault,with faults codes identification.

Answer / s k deo

To limit Motor Starting current & Save Power consumption.

Answer / vaseekaran

THE VFD DRIVES ARE USED TO CONTROL THE SPEED OF THE MOTOR.THIS CONCEPT OF CONTROL THE SPEED IS BY CONTROL THE FREQUENCY OF THE INCOMING SUPPLY.HENCE THE AC SUPPLY IS HAVING THE FREQUENCY SO IT IS POSSIBLE TO USE THE DRIVES ONLY FOR AC LOADS.

why current transformer secondary is short circuited an what will happen if connect very high resistance acrossthe secondary side of current transformer?

1 Answers   NPCIL,

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How many types of DC current

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HT and LT cables can be laid on same cable tray

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What will be the change in its efficiency and other parameters of a ONAN transformer if it changed to ONAF transformer ?

3 Answers   Tesla,

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How regulator control the fan speed?

4 Answers  

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Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

0 Answers   HMK,

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Hi Recently I got one formula that is Impedence of Xformer = Rated KVA/Root 3 * secondry voltage OF Xformer. Is it Right??????

2 Answers  

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A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

8 Answers  

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What is the difference between INVERTER and UPS?

7 Answers  

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The windings of a transformer are divided into several coils, because?

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The neutarl to earth voltage in system is 7volts on Electricity power but it lowers to 1.3volts when load transfered to DG power.what may be the reason.

3 Answers  

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What are the advantages of vscf wind electrical system?

0 Answers  

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