If single phase supply is 220v. then why three phase supply is 660?
Answer Posted / sumit kumar jha
no because one earthing is also present ..so 220v or 440v is perfect answer...same case two earthing also used in 3 phase supply but mainly one taking all times...
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
Why efficiency of generator is higher than motor at a particular load?
IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.
how can get electrical c licence.now i am working in spining mill , transformer capacity 2750KVA. SANCTION DEMAND 2250KVA. PLEASE ADVISE ME . MY CONTACT NO 09944226823
how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?
What are the applications of the electric motors?
How many types of instrument cables are there?
anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?
What should be current in the Primary and secondary side of 1000KVA (11KV Supply)Transformer.?
i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,
What is the Surge suppresor? Why using in a UDB's and How it works?
what is the use of the puls transformer in UPS & how it works???????????
When and where resistance earthing is used ? How to calculate the time constant for earth fault
what is difference between speed mode and torque mode in motor?? explain in simple words please.
How many types of probe used in cro?
What is the permissible maximum flux density in transformer core?