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what is the acceptable earth resistance value ?
Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.
what is cascade speed control device?and how this device control the speed of motors?
What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.
Is Indian railway uses 25000v ac or dc?
I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.
when current lags behind voltage how does it affect the circuit.In other words what is the significance of lagging current?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating
what should be the resistance between two winding. Let 10 kw motor
What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?
What is 100% protection of generator? Why 95% protection is used not 100%?