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What is class ab operation?
Why the field rheostat is adjusted such that the voltmeter reads 380V
what is meant by re-rolling motor? how it differs from standard motor?
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?
What are the uses of lead compensator?
What is deference between MCB & MCCB & ISOLATOR
Do Phase angle measurement have any application in freq/harmonics measurement? If so how?
what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?
Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?
Define step response?
distribution is maximum done by a)radial b)network c) parallel d)b & c
What are the parts in a inverter?
Should power factor be low or high?
Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode
How we can defined theecopper cable size if we know the aluminium cable size?
