What are the types of earthing? Explain dagramatically.3 5542
We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?5 8794
WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE1113
why we not using 230kv directly why we are stepping down and then stepping up2 3408
earth-fault relay is? a)directional relay b)non-directional relay c)protective relay d)admitence relay2 4557
What is the difference between MCCB and MCB ?4 7224
why anti pumping relay is not given to tripping coil of the breaker? why only to closing coil?2 4294
What is triple entry system.8 19968
What is the basic principle of vibration measurement by BENTLY NEVADA vibration measurement system? and Why it gives the -ve voltage output?14 125500
why rating of alternator in kva & induction motor in kw9 15100
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?1303
please explain briefly about account receivables and payables2 6924
what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer1134
in a dc motor we supply current only to the armature conductors,from where is the field winding gets excited then??3 4042
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
How to assign a project/tenant to a user?
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What is a windows based application?
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Explain the difference between servletcontext and pagecontext in jsp?
Explain the difference between constructor and ngoninit in angular 6?
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What happens when an inverter is placed between both inputs of s-k flip flop?
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