can we done C.T.sc at output? if yes y,if no y?

3 Answers  

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Hello friends, Can anyone explain the concept of zones in Bus bar protection and how can we differentiate the main zone and check zone in Bus bar protection

1 Answers   ABB, NCC,

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How much is the starting current for HPMV lamps. How many lamps can u wire in a circuit

1 Answers   Technip,

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To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

2 Answers  

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How to put breaker in service / test position.

1 Answers   KSEB, L&T, Siemens,

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what is wave trap? And how it works?

3 Answers  

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WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?

0 Answers   Siemens,

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hi i wonder will the speed of a 50hz AC motor reduce if i supply it with 25hz?

4 Answers   Divis Laboratories,

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what happens when the phase and earth wires comes in contact? and why

2 Answers  

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What is the fuction of UV & how it works in circut breakers? is it one type of relay?

4 Answers  

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if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

0 Answers  

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Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

0 Answers  

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