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dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish
RRB,
2407how can we know cable size for a given current? if any one have catalogue plz mail to vijay_raju369@yahoo.co.in
5 24600why in three phase 440 circuit in all phase current is almost equal L1-35 A,L2-34 A ,L3-31 A but in nutral when i check with clamp meter it shows 25 A?
OPS,
4 13393why for transformer protection we protect tranformer from 3rd hormonics and 5th hormonics and what is the reason of generating these horminics in electrical system?
2 9829what is difference between start imitation and start interlock for 3 phase motor protection ?
OPS,
2 80271.Whats the use of GNAC(Generator Neutral Accessory Compartment) 2. why generator or any other system require Neutral Grounding and not Phase grounding 3. what happens if any one of the phase is grounded. 4. if 15kv is grounded directly what will happen, why it should not be grounded like that 5. use of of NGTR(Neutral Grounding Transformer and Resistor) for grounding is helpfull and how
5 28663i have interview in Pepsi company what type of question will ask please send the question and answeer
3517hi frnds can any one help me ? plz send me placement paper of hpcl of Electrical streem .... plz send ....its urgent . The hpcl test is on 17th feb.
1 3667Post New Electrical Engineering Questions
what is the breaking capacity and making capacity of circuit breaker and how
wat is meant by PX class in ct?
Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason
why the NGR (neutral grounding resistor) always OFF during DG off?
What are the advantages of the three-phase motor over single phase motor?
A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.
UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?
What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.
FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?
how to calculate micom relay earth falt time and current sertting
which type of stability limit is higher,steady state or transient? why?
In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?
Load break swicth maintenance procedure.
why the active power flow of some line is increased when the active power of out is cut ?
What is notching in dc machine?
