Interested to Buy Any Domain ? << Click Here >> for more details...
Post New Answer View All Answers
A jet of fluid strikes a plate What was the force required to counter it?
Why hydropower stations are preferred solution for meeting peak loads in grids?
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
How to calulate Locked rotor amper(LRA) for compressor type motors?
What is distance between electrical panel to land ?
What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?
What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?
What are the essential characteristics of signal flow graphs?
How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
What will be the diameter of pipe between conservation tank and transformer
1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.
How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com
what is the requirement regarding earthing of Single conductor with AWA
What is the difference between single point and double point bonding. please kindly detail about bonding of cables.
