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if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm
2175In Indian Railways , how the AC motor is driven? Please explain clearly starting from the overhead 25kV supply.
1 4009In 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.
1988In a 132KV Grid Station where voltage level is 132KV, here, why the rating of Surge arrests installed 120KV ?
1 4666what is the best way to start a 15 KW motor for pump star-delta or direct on line ? and from how many KW i must use direct on line ?
1 3519What's mean HVF & HAF in Vacuum Circuit Breaker?
Gandhi Institute of Technology and Management (GITAM), Hyundai, Jayam Engineering Works,
5280we want to feed 3 phase supply to 70 ton AC load.what will be the size of (3 phase)cable require.
BSES,
2 6131Post New Electrical Engineering Questions
we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.
What are linear and non-linear systems?
there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit
Dry type transformers
Is there any guideline say about display of earthing value near to earth pit
how to carried out tan delta test in 11 KV alternator ?
How to know the following data of synchronous generator 1. D-Axis Unsaturated Reactance 2. D-Axis Unsaturated Transient Reactance 3. D-Axis Unsaturated Sub - Transient Reactance
1)What is a Triode? What are its uses? 2) What is a Triac? 3) What is a Thyristor?
why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?
if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain
i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection
Zone of protection and tripping scheme of arc protection relay.
how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!
Explain RLC circuit?
what is the meaning of vcc
