If single phase voltage level is 230V than why three phase
voltage level is not 660V ?, but it is only 440V.
- 16 Answers
- 70402 Views
- BSNL, DOS, EFS, HMT, L&T, TCS, ThyssenKrupp, I also Faced
- E-Mail Answers
Answer Posted / pete
The question is incorrect, the line voltage is not 440v, it
will be 400v if your single phase is at 230v.
Reason why its 400v is because if you put a voltmeter across
both live phase voltages, it show 400v. But you will need a
picture showing waveforms to explain it properly.
| Is This Answer Correct ? | 8 Yes | 7 No |
Post New Answer View All Answers
Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??
we have consol make 3 phase servo stabilizer for cnc m/c. while installing the earth neutral voltage is 1.7 volts at stbilizer off condition and when stabilizer get on en voltage reaches 4.8 volts (new earthing is done and neutral is helthy condition all phase to neutral volts 440,442,441 v)why this happen.solution for cause.
earth also having a gravitational force (magnetic field of north and south)but it attracts any object compare to this theartifical magnetic cant perform same as earth why?
How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.
Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????
As we know diode work on both negative and positive but converting ac into DC we have to given a/c from negative of diode or positive side.please give me answer.
why ht motors are star connected?
DC transmission
Ratings of power transformer,Distribution transformer.
I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?
What is the unit of charge and current?
As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?
how to design coil turns ?
HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U
How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.
