Interested to Buy Any Domain ? << Click Here >> for more details...
Why there is not any reactive power in DC although it causes
magnetic field.
- 7 Answers
- 22472 Views
- I also Faced
- E-Mail Answers
Answer Posted / rohan joshi
In D.C phase angle is zero. hence power factor is 1.
we know that reactive power is Q=VISin(angle), so its zero.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
How many kw will suply from one db
List the time domain specifications.
What is method of calculating the fault current for a MDB, 50KW, 3PH, 415V, 50HZ?
Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.
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.
Why back emf used for a dc motor? Highlight its significance.
Explain thin film resistors and wire-wound resistors
While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x
What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.
What happens if i apply 500V to 440V rotary Switch ?
Is vtg is controlled by the resistor? if else how much?
What is different bewteen low or high impedance busbar protection scheme
DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT
What must be the minimum distance maintained between 2 Generators as per International standards?
