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What will be the direction of rotation of a Alternator in case it goes in motoring action when connected with grid ?
6 12991There is no such thing as a Generator. All power generating devices are Alternator since both generate alternating current since this is the only way electrical power can be generated. In "generators" the alternating current is converted into DC inside the housing of the "generator" in order to give out DC Do you agree? If not please educate me. How else is DC generated if not like above?
2 4478Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both
2685Why we are testing a tan delta test in transformer? which purpose conduting that test? and time priode test?
1 3807Briefly describe three methods that are usually used by electricity suppliers to control voltage levels?
2018Post New Electrical Engineering Questions
What is Tachometer used to measure?
iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.
what is destructive and non-destructive testing of welding
Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.
How I calculate the ELCB for circuit breakers?
what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor
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
Is the theorem applicable to ac sources?
How to measure the earth resistance value in a concrete pavement(flood light area)?
relation between power station capacity and voltage level?
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
what is the function and use of cable differential protection relay?
What is sink and source?
i need some project topics along with circuit diagram in the electrical adnd electronics engg and also give ome website regarding projects.my mail id is thenmozhi2k7@gmail.com .please help me.
Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??
