the cheapest inducting instrument among all is a)pmmc b)moving iron c)electrodynamometer d)rectifier

2 Answers   APCPDCL, APEPDCL,

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How to measure the Harmonic Distortion of UPS ie THD?

0 Answers   MG Tech, NIC,

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when the direction of a 3phase induction motor is reversed , is there any losses increases?

5 Answers   IOCL,

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calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.

0 Answers  

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what is the advantage of using 3 phase line rather than using 2 phase line?

2 Answers   Havells,

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what will hapen if secodery circuit is open of current transformer WHy neutral to ground trips when neutral touches the ground

1 Answers  

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what are the advantage and dis-advantage of 3 phase 4 wire energy meter?

0 Answers  

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What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.

0 Answers  

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state the working principle of incondenscent tube?

0 Answers  

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why output is out of phase in case of common emitter?

0 Answers  

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a 120 60 watt incandescent lamp has to be operated from 50 c/sec 1 phase ac supply. in order to do this a circuit element has to be connect in series with the lamp. which one of the following sries element is preferable.

1 Answers   SSC,

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Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

44 Answers   Akona Engineering, Bhel, BSES, Cranex, DRDO, JCB, NTPC,

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