draw singleline diagram of star to delta and dol starters
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2 Diesel Generators 900KVA connected to the bus bar for essential load as an alternative for power taken from 11/440V 3KVA Transformer supplying this bus bar. my question here is in the event of power failure on 11KV side can I feed the power to 11 KV bus by using the same transformer as reverse feed, what will be the inrush current???
How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?
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defination of static variable compensator
When electric field is parallel to the plane of incidence, the electromagnetic wave is said to be a.Linearly polarized b.circularly polarized c. Elliptically polarized d. Hyperbolically polarized
starting torque is increased and current is decreased by using external resistance in a slip ring induction motor. How??
Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?
what is surge impedance loading and it's significant in power system?
why do we use star-delta starter. what is its need?
What is the power rate of power transformer?
What is over fluxing in transformer?
What is different type of Electrical curve and how it protects the equipment's while up-normal situation?
Which UPS (inverter) is better and why ? 12 V inverter and 24 V (two 12 V batteries in series) inverter which is better ......... which has the longer backup which has the greater charging time which has the greater discharging time thank you