Interested to Buy Any Domain ? << Click Here >> for more details...
In case of 3Phase Supply,
Voltage R-Earth/Neutral - 220
Y-Earth/Neutral - 220
Z-Earth/Neutral - 220
Total is -> 660Volts
Then Why it is said that 3Phase supply is 440
- 6 Answers
- 14426 Views
- Hindustan Unilever Limited, I also Faced
- E-Mail Answers
Answer Posted / padmavathi
If we measure R-Earth/ Neutral that is 1 PH. 3 Phase, 440V
means we have to measure Phase - Phase i.e. R-Y, Y-B, R-B
| Is This Answer Correct ? | 4 Yes | 4 No |
Post New Answer View All Answers
redundant connection in contactor?
condition Autotrip facia come on control panel of electrical transmission line?
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
how can calculate resistance box for 15 kw, 6 pole, RV-230, RA-42 motor
what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????
How can get elongation of 2 k.G aluminium, if elongated aluminium dia is 2.5 mm?
How can find thermal state value in relay for calculate thermal overload.
what is mean by dual digital protection in the relay field?
How do I calculate/select Droop CT ratio for various capacity of generators?
why are the maintaine power factor and how can this control and this is how work.
What happens to voltage when current is zero?
how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?
Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm
How would your past experience translate into success in this job?
how to calculation increase capacitor,increase power factor for three phase.
