what is the function of Droop CT and where it is used?

3 Answers   Lanco,

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what mean ohm

1 Answers   Shoba Devlopers,

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In a 3 pin plug holder, what is the purpose of diameter of ground pin is larger than phase and nutral pin

9 Answers   Coal India, HCL,

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Dear sir, I completed DECE In the year 1995.Now i am working in a private company from last 10 years as an Electrical supervisor.The company having a 1000 KVA transformer.Now i try to apply "C" Licence. I am eligible or not.If not eligible,pls give solution.

0 Answers   Balavigna,

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condition Autotrip facia come on control panel of electrical transmission line?

0 Answers   Getco,

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for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

0 Answers  

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why is only third harmonics is dangerous for electrical equipments?

3 Answers  

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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

0 Answers   Lupin,

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what is the difference between earth, neutral and ground?

1 Answers   Farnek, Shyam Indus Power, Spiro Solutions,

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What is the major differences between RCCB & ELCB? If we use ELCB of less sensitivity why does it trip often and can we control it from tripping?

1 Answers  

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why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

0 Answers  

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suppose a fan is running with phase and neutral. if its neural is touched to body. then fan get stopped. if this fan is connected to phase and ground supply..then why it runs?

1 Answers  

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