Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?61
How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.
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what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY
I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???
why power factor is important?
before synchronizing an alternator,power factor is leading ,why?
How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.
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how to calculate insulation level of transformer?
What is sink and source?
What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?
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What is the formula to calculate the size of Aluminium and copper cable?
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