Basic philosophy of applying 3P tripping for uptill 132KV switchyards & for 132KV & above 1P/3P tripping is used.
Is it necessary to seperate the DG earth grid with Electricity Board earth grid for protecting the DG set. if yes why?
Isi standard of lux level required / to be maitained in different working place general & in textaile industry.1 5728
why breather cap filled with oil?7 13076
Why dose an electric meter record KVA when there is no load on a 500 KVA transformer1 3983
how is working d.c amps meter?how to connect the dc ammeter inthe circuite?2 4847
how we calculate the 30 KW 3phase electric motor current on noload23 128401
What is harmonics and how the 1st,2nd,3rd etc harmonic levels2 6006
How the CT and PT ratings are calculated5 15741
expansion of rccb3 4807
In UPS what does 600va reffer to?4 33264
what is cogging and crawling
What is minimum phase system?
What are the different types of transformers?
what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.
What is the formula to find out two phase active & reactive power
what is basic difference betmeen normal & flame proof motor??
What is pi controller?
What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?
How to calculate the efficiency of Turbo Generator(Alternator) in general....?
In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.
either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?
What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor
Define peak time.
how did the testing of protection relays done through current injection
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