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|Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.
|what is the most probable reason of failure of current
|can anyone tel me what is competency of electrical
|in our 6.6kv motor feeder[it is having two sources from
Bus A&B] earth fault relay is acting, we checked CBCT
connection and cable meggerd values found very good still
earth fault acting during first two are three start after
that it will hold. please clarify what was the reason. if
same motor is starting from other Bus-A it will start.
|what is power factor? whether it should be high or low? why?
|on what factor insulation resistance depends
|why transmition and distribution and genaration of voltage
in multible of 11 means 220v,440v,11kv,22kv,,,...so on
|How to take of Transformer oil Break down voltage test?
|What are the usege & different between UPS & batteries
with charging system in in Substation?( UPS 120V AC &
battery charger is 120v DC)
|FOR 3 PHASE DISTRIBUTION,WHY WE USE ONLY THE VOLTAGE LEVEL
OF 440 VOLTS
|what is the use of power factor ? where its applicable ?
|How does numerical relay work?
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