hi frienda We have 250kva cater pillet dg set we are fasing
one diffrent proublam in dg we are start dg set after one
mint applying load around 450a load but dg was run 3 Or 4
mints after 3 mints dg was shuding down automatic how to
face this proublam pls tel any budy

Answer Posted / ajay

that is 250kva d.g.it will be give only 250-300amps
load...you will also give to 300a load and then check it


OR


hydrollic magnatising is very low,d.g.will run there
after voltage is not buildup,then d.g.is shuting down...

please do one thing short your battery
terminals and then give to connection it will be started.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

hello!my name is sheikh iam preparing for indian engineering servieces,please send me the old question papers..to sheikhshaazforjobs@gmail.com

1636


could you measure current in parallel?

687


Dyn1 transformer vector group testing how to do

1334


hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1435


What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

1718






what is method for testing CT

1616


Why does the rotor rotate?

1807


how to determine the inrush current of a transformer

2108


what will happen if frequency is below 50 hz?

1556


A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

2449


Whether power factor should be high or low? Why?

659


I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

1403


Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

1643


Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

1508


Why we use circular(Stepped) cross section in transformer core?

1755