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why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer?
3 11488What is C2-M2-E2 class in circuit breaker. why and where it is to be used in circuit breaker
1 26726electricity board have asked me what size meter i need fitted in my garage, its a 415volt supply and i want to run six 20amp supplies tolifts and things plus ten florry lights , what kva meter do i need??
HCL,
2 4640. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?
3303Post New Electrical Engineering Questions
what is auto re-closer?
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.
during installation time of transformer and alternator which points we have to observed?
How to calculate or formula to calculate rhe power in 2 phase system ??
How capacitor improves pf
What are the temperature elements?
What will be electrical cost per sqft for IT building (basebuild and fitout)and for residential township?
what is tri state logic gate
what is the standard values(Megger test) of resistances between L&N,L&E and N&E for a system on IEE regulations?
Why human body feel electric shock?
how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
What are the types of feedback oscillators?
why do we have spikes enough to burn electronic boards, when generators are not grounded
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
