single phase for 230 then why three phase are 440 volt

Question Posted / guest

4 Answers
18174 Views
ACIL, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

single phase for 230 then why three phase are 440 volt..

Answer / viswanath

Single Phase voltage = Phase voltage / sqroot of 3

Is This Answer Correct ?

24 Yes

13 No

single phase for 230 then why three phase are 440 volt..

Answer / pankaj rana

Phase means voltage.In single phase we measure the potential
difference between phase wire and neutral wire which is 230
volts.while in three phase system voltage is measured
between two phase wires which is 220+220=440 volts.In three
phase system if we will measure voltage between phase wire
and neutral wire it will be 220 volts.

Is This Answer Correct ?

25 Yes

23 No

single phase for 230 then why three phase are 440 volt..

Answer / sudarshan

three phase 230v line to line is also available

Is This Answer Correct ?

1 Yes

3 No

single phase for 230 then why three phase are 440 volt..

Answer / sethuraman.v

we can measure the voltage through multimeter (i.e)in multimeter having only two probs. so we can measure only 2phases (i.e)440V to measure the 3 phase voltage we have to use the formulae of 3 phase power (root3 VI COSO)by applying this formula we can calculated as 440V

Is This Answer Correct ?

5 Yes

8 No

Post New Answer

More Electrical Engineering Interview Questions

can we install LT panel & HT panel in one room?

1 Answers

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

0 Answers

What is on delay and off delay timers

1 Answers NCC,

What is proximeter? where it is used and why?

1 Answers

132/6.6𝚔𝚟 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛 𝚗𝚎𝚞𝚝𝚛𝚊𝚕 𝚑𝚊𝚜 𝚘𝚗𝚎 𝚎𝚊𝚛𝚝𝚑 𝚙𝚒𝚝 𝚍𝚎𝚍𝚒𝚌𝚊𝚝𝚎𝚍. 𝙸'𝚟𝚎 𝚊𝚗𝚘𝚝𝚑𝚎𝚛 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛 𝚘𝚏 6.6𝚔𝚟/415𝚟 𝚌𝚊𝚗 𝙸 𝚌𝚘𝚗𝚗𝚎𝚌𝚝 𝚗𝚎𝚞𝚝𝚛𝚊𝚕 𝚝𝚘 𝚜𝚊𝚖𝚎 𝚎𝚊𝚛𝚝𝚑 𝚙𝚒𝚝 𝚊𝚜 𝚘𝚏 13/6.𝚔𝚟 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛?? 𝙸𝚏 𝙽𝚘.. 𝚃𝚑𝚎𝚗 𝚠𝚑𝚢??

0 Answers

sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

1 Answers

what is difrent between earthing and ground

4 Answers

why in india the voltage generate multiply by 11,,,like 220v,440v,11kv,33kv,66kv,220kv,

3 Answers NTPC, Servotech, Tata Power,

I did oil BDV test of 1600 KVA trafo 20KV/400V as per IEC 156. Result is 1) 58 KV 2) 58 KV 3)40 KV 4) 50 KV 5) 58 KV 6) 18 KV. Avr is 47 KV. Can we say oil is still ok even in the 6th test BDV is 18 KV ?

1 Answers

what is mean by VCB colour code..???

1 Answers Student,

What are the advantages of star-delta starter with induction motor?

7 Answers Merchant Navy, Naval Academy, Samundra Institute of Maritime Studies, YMCA,

sugest any typical project ?

0 Answers

For more Electrical Engineering Interview Questions Click Here