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In case of a synchronous generator carbon brushes, some brushes expire before the others. Why is so? When all the brushes are installed at the same time, why don't thee expire at the same time?
1 2969Grounding. Dear all at one of my site we checked the amps at the earthing cable to the alternator it was found 125 to 130 A. at the neutal cable in same machine found 146A. in the same plant checked the earthing current on other alternator it was 52A, and neutral 116 A. we are facing problems with our controller and the card was damaged once. can that neutral/GND current be a reason? as there is common grounding for the Alternator,Brkr panel,Transformer?
2 4038Is there any Institution for giving M-tech in Electrical engineering for those who r in service? Give the details please.
2070what is the difference between interconnection and intraconnections in the circuit diagrams
NTPC,
8398how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?
3682Post New Electrical Engineering Questions
In a single how much maximum current and watts using
Anybody know how schematic diagram for reverse power relay? RPR for generator protection
operation of protection relay watchdog contact?
What are steps to be taken while designing of DYN11 distribution transformer to achieve magnetising balance?
how to select the double earth conductor if 21A full load?
we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?
Air circuit breaker safety
An ELHNC 80amp 240v 30mA RCD is tripping periodically, every 30 - 180 seconds is it safe to disconnect the protection circuit?
hello!my name is sheikh iam preparing for indian engineering servieces,please send me the old question papers..to sheikhshaazforjobs@gmail.com
What is pd controller?
how to set relay setting? and example calculation...
How earthing of switchgear system to be done.
How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?
if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
3phase motor can be used as a Prime mover for alternator.
