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where we use 1 phase & 3 phase supply ?what is major advantage using 3 phase over than single phase ?
3 6412i need 24v dc from 230v ac supply how we can getit ? what are the devices &its rating requied for that ? plzz i need answer urgently .thank u
3 9132What is the operating range(tolerance) of voltage and frequency of grid supply in india?
BARC,
10 22675whenever any squirrel or a crow falls on the transformer input line then there is a big explosion and 440 volts of power is being discharged through the neutral line due to which appliances in off mode are also burned.we have earthing for the transformer as well as the bus bar chamber.why is it happening?
1 2832What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?
1940While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?
3537a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?
2 7281Post New Electrical Engineering Questions
What is block diagram?
how can i use REF and diffrencial relay both in 1 CT core for transformer protection?
How are load losses and no-load losses measured at site in a DG set?
how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.
What is precision of a measurement?
what is is the potential diffrence between two phase ?
The loads are connected with phase and ground then why current flow as the loads ?
Can i replace Earth leakage relay to the faulty Earth Faulty Relay
what is the pre charge circuit,what will be work which function it will be use plz tell me
How many capacitors using in LT panel as per Govt rules?
working function importance of mdc meter
It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.
please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com
how to calculate voltage drop and followed by cable calculation?is there avail in formula?
How to set the relay,,??
