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in the exciter the power is feeded from battry or control or whatever.and we need it in the generators for the stating . do we need it in the shutdown also?i mean the exciter>
2 4503why the earth pin is thicker than other pins in a plug? If it is for reducing resistance, then why the copper earth wire is not so thick as earth pin of socket?
Omax,
5 8902if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)
1 3769Require Generator Capcity ( KVA ) for 3 Phase Motor having 4.7Kw with starting current of 16amps?
1 4227why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?
2145Post New Electrical Engineering Questions
what is the ATS .And how it works.
Pl. give me checklist for installation & commissioning of machine tool.
What is gross error?
Explain how you decide what size of electrical wire do you need?
How can calculate the rating of a servo stabilizer for given a specific load
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
how to calculate vfd o/p voltage by frequency
what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?
When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?
Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?
What is the use of Surge Capacitor in LAVT?
how to protect motor in dol starter having capacity of 30 hp.40 hp?
What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?
what is level 2 automation?
dg earth connect only in the amf panel or not why
