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 10046What is C2-M2-E2 class in circuit breaker. why and where it is to be used in circuit breaker
1 24192electricity 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 3832. 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?
2828Post New Electrical Engineering Questions
How I calculate the ELCB for circuit breakers?
Earth bits close or open. Which is correct
why -48 volts dc used in telecommucation
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
What is CCT (Correlated Color Temperature) ?
PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??
what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group
What are the different types of LT Cables?
what is the transmission loss for electrical supply? specifically a large shopping complex where the grid is half KM away, what will the % of transmission loss? is there any transmission loss for captive unit generation for above set? thanks
What are the reasons for the parallel operation of transformers?
what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?
how many load we can take for lighting
Is there any type of starter for DC motor other than two point,Three point and Four point starters?
Differentiate between magnetic field and magnetic flux?
Inductor and capacitor........power in one phase and ...... in it another phase.
