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Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ?
2) Why ups required dedicated earth?
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Answer Posted / chakravarthi
what is the link between form factor and the transmission....???
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why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?
Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.
Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0
Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT?
How to test Alternator stability test for REF relay
What are marginally stable systems?
Why reactors use before incoming of ac vvfd drive?
In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.
3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.
Apparent power is expressed as V * I(Conjugate). Why not in V * I ?
HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?
For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation
Which type of transformer is used for lighting loads?
Why is a synchronous motor always star connected??
explain which quantities change in the starting and the and the running condition in induction motor
