We have 2 no. 4MW DG set. and GEB supply.
But, we running, only 1 DG set. when we done APFC/Power
factor setting : 0.90, then winding temp. Low. but when
setting done : 0.83, then Winding temp. increase.
WHY Why ? ? ?, plz give me answer.
Answer Posted / gurucharan singh
this is clear that at lower pf settings, its the DG which
compensate for the KVAR. which results in the high winding
temperature. For this check the plant loads connected. And
KVAR supplied by EB & DG. Also during parallel with grid DG
generally act as KVAR compensator along with KW supplied.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
Earth has zero potential then what would be the neutral potential ?
Why two phase welding machine is used instead of three phase welding machine.
How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.
In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)
I WANT YHE TECHNICAL AND ELECTRICAL SPECIFICATIONS OF 2x4MW 11KV 2x10MW 11KV 2x25MW 11KV 2x100MW 11KV HYDEL POWER PLANT i.e PROTECTION SYSTEM,MONITORING,CONTROL SYSTEM,GENERATION,SYNCHRONISATION,METERING PLEASE SEND THE DETAILS TO MY MAIL ID SPRAVEEN_222@YAHOO.CO.IN
I am inpecting a 10kVA UPS what tests should i do and should i observe?
gas turbine genrator reactances
sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
what material is the electrical housing wire made of? is there any difference for the telephone lines?
I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?
why we use Test Terminal Block in 11 KV and 33 KV electrical panels.
What will happen if the d.c. Machine is operated below rated speed?
why the pf of semiconductor device is improved the electrical devices
Why single phase induction motors are not self starting ?