Answer / ashok

An electronins ckt which controls the speed of AC/DC motors

Answer / vinay

drive mean a mechanical device to do the specific task
drives are ac drives and cd drives the drive workds on ac is called ac drive in dc called dc drive.

Answer / abhishek goyal

Circuit made of electrical (choke,power cable)and electronic
(SCR,IGBT)to control the speed of AC/DC MOTOR. it can be
control voltage, current, frequency etc.

We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

0 Answers  

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415v 14kw so can u tell me how i can measure the cable size.then size of the earth also

1 Answers  

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surge tank, hrc fuse, earthing transformer, firm power objective type

0 Answers  

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Why glands not provided for XLPE cables

1 Answers   Saint Gobain,

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hello, I need to know exactly what happen in the motor while it is connected to the (star/delta) starter, mechanical and electrical. Thaks for answering

3 Answers  

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What is FTA card? How it works?

0 Answers  

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

0 Answers  

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How core saturation effects the secondary voltage (whats the theory) of a current transformer in service?

1 Answers  

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What is depreciation factor?

0 Answers   HCC,

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What OPGW is better than Microwave or PLCC???

0 Answers   Four Seasons,

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What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

0 Answers  

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which signal we found accurate reading of analog signal or degital signal and why?

1 Answers  

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