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Un-Answered Questions { Electrical Engineering }

what is saturation kit?which use above 15 kw motors panel side.

3288


I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

1428


what is the use of piston rings in the engine used for a generator...........

1448


what happen if drive input fail momentry at 48.5 HZ frequency?

1268


HOW TO CALCULATE AMPs OF CURRENT TRANSFORMER IN HT Panel

1541


What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.

1324


plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?

1574


how to calculate the settings for shaft ct protn in hydro generators

1252


what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that

1511


What is I to C?

1379


What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

2029


Terminal blocks is used for segregate the connections... There is any principle for terminal block..?

1424


what is physical distance of isolator to VCB in 33/11kv sub stations

1410


what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line

2597


i want use the cable size 16cx4 core aluminium usege watts 240x2000w this cable size is correct?

1444