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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 4037Is 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 ?
3681Post New Electrical Engineering Questions
what is the need of starter in tube light and what type of starter is used in that?
Define liftable weight of a transformer? Does the total weight of transformer include oil weight?
What are approaches to tackle sedimentation problem of reservoir?
what is the significance of tan&delta and how it performed in power transformer
i need mat lab program to find out the transmission line losses,regulation and losses
Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.
1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?
How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.
Percentage losses in power generation?
What are different types of control systems?
why incomer bay is required before transformer bay if there are more than 1 nos. of transformer bay.
what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.
what is transistors comprised of?
which book to refer in electrical engineering for iocl exam & which book for general english.
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
