WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?
What is the lockout relay
the typical output of a solar cell is........
Why the core of a underground cable is spiral in shape instead of straight??
Define average demand?
why fuse not recomended to neutral
What happens when ac supply is given as excitation voltage instead of dc supply
Comment on the working principle of operation of a single-phase transformer.
11KW Delta motor is taking about 44Amps in star and goes upto 70Amps in delta and trips OFF. The rated current is 26Amps. Application is for the blower. The motor takes ( no load without coupling impller ) only 2.5A and 5Amps in star & delta starter test.Need to know why its taking high current.
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.
Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry
what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?
How can we calculate the fault level of the distribution system knowing the percentage impedance of transformer & subsequent equipments.
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