What is the differance between negative dc voltage and positive dc voltage because some circuit uses -24,-5,-12,- 15,volt dc supply
eLab, Hero Honda, NTPC, Suzlon, Teradyne,
10 33653hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.
2442In step down transformer (415/200V),mistakenly secondary side is connected to 415V for some hours, what would be result of this condition?
Essar, GAIL, Vizag Steel,
19 23967In any Industry, Which voltage level either 3.3kV or 6.6KV to be chosen? Then I would like to know ,Is there any cost consideration or Rating of motor?
5 9268what r the advantage of selecting micro controller type tripping of circuit breaker than relay type tripping?
BARC,
5 7313Post New Electrical Engineering Questions
how to calculate units consumption for a 12 hp motor /hr.
what is draiv work
What is the mechanism of WTI
what are the reasons of CT circuit faulty in busbar protection scheme?
Is it required to lay 2 runs of GI wires along with armoured cables from one power DB to another Power DB?
how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.
what is the working principle of a DG Set, Alternator, & exiter
How will you utilise electrical power? You can start from the generating station.
please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.
As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.
upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.
a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5
a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------
How to design harmonic filter at the project stage without nowing the harmonics levels
What is Electrical Grade Aluminum for Tubular BusBars. i am confused between 6063 and T6 or T5 and what is BS 2898 and BS 159?