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DC transmission
why the carbon brushes are broken in srim while the motor runningtime
Why induction motor is widely used in industry
difference between ac series and parallel circuit
Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?
How to determine alternating current frequency?
A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.
Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????
what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?
Define filter?
how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!
What is mean 2XWY
please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.
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.
in cvt,there are two windings,1a,1n and 2a,2n.in my one project i use only one winding i.e.1a,1n. the other winding is not in use, so i connect it in open delta and want to close it by ibsertibg thermal resistor. the output of cvt is 132kv/115/sqrt3. plesae tell me exact value of resistor, so i may close it to avoid the resonance phenomenin. send me answer on this email adress please. aetcon-po@aetcon.com
