Why in power plant projects we see DOL starting method used for motors upto 160 kW instead of star delta method
UCC,
1369In a synchronous motor. if start is running at high speed. What will be the starting torque : Higher Lower Zero
1237in the farm,water tank of 8000 litter capacity situated in 12 meter above.Farm owner want to lift 7000 litter of water within 7 minute to water tank of 12 meter above.which motor having HP rating is suitable for pumping??
1 2243we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan
1213We are dealer in Maharashtra State & We have recd. form C from dealer of Maharashtra State against our E-1 form. Now assessing authority is asking for counterfoil of our E-1 form. But, our E-1 form counterfoil is misplaced somewhere & assessing authority is disallowing the C form which is recd. from Maharashtra State.Please let us know the option for allowing C form?
1 1744What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.
1237Post New Electrical Engineering Questions
How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.
What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?
Why armature rheostat is kept in maximum position?
why we testing the core balance of the transformer before comissioning?
how much value of resistance should connect to 15 kw, 6 pole 3 phase slip ring induction motor having RV-240, RA-42.
High speed earth switch operation with diagram
why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?
for what purpose the star point is done in ct
What do you mean by a phase angel of instrument transformer?
Explain the operation of variable frequency transformer?
what is electrical machines
what is effect of length of air gap on performance of dc motor and generator?
what is the formula for hv test for cable and circuit breaker..????
Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?
from which formula we select a capacitor rating?
