Rotor resistance starter is used to obtain=
A increased starting torque B decrease
starting current
C decrease starting loss D increase efficiency
Why derivative controller is not used in control systems?
What is VCB? Where it is installed?
Write masons gain formula.
Why we are using air gap magnetic condutors
how can we understand that where we have to use ac or dc coil for solenoid valve and why?what is the different between coil of ac and dc explain please.
what is the function of LBB relay
what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?
How is the percentage impedence of a transformer fixed at design stage???
How PSV sizing being done
For 35 HP motor how much amount of capacitor should be on in kvr to reduce the current bill
purpose of breaker contact multiplication relay?
Why current flows in nutral? As per theory there should be no current in 3 ph explain.
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