I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id: vsujith_rajan@yahoo.co.in
RRB,
3 4498can any one help me? 1.what is corona extinction voltage&corona inception volatage 2.what is mean by CFVV?
KSEB,
1 12354which type of breaker sould be used for different level of voltage ? (i.e at 11 Kv, 33 Kv, 66 Kv....
8 18127What happen if we re-start H.T motor whose rotor is running at 40% rated speed. Is it will damage motor winding?
1 2932If an induction motor is restarted before its rotor stop rotating, then what will be the amount of current drawn? Is this current will be the same as motor starting current?
5 6248without any theoretical calculations, can u approximately tell the current rating of a motor(above 30hp)working at 415VAC.
7 7704Post New Electrical Engineering Questions
what about the power of wattmeter at starting and loding?
WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?
what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?
IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?
During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?
how we can calcultae the short circuit level for bus bar
how we do Vector group ,magnetic balance and tap changer test in Transformer?
how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt
What is “pu” in electrical engineering?
Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.
what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada
how to calculate the change over time for star delta starter for different KW motor?
Difference between On Line capacitor and Station Type capacitor.
one split ac how can told of this ac which Tr tell me us
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
