Answer / badshah

1.2 times that of 50 Hz Power. Frequency increases the
Speed & which in turn increases the power consumption
[P=(2*pi*N*T)/60 and N = 120f/Poles)]..so the ratio is
60/50. But the losses will be more, cause iron & hystersis
losses proportional to frequency squared. I think overall
efficiency may be reduced than when the motor is connected
50 Hz supply.

VCB in closed position during opertion if vaccume break then what will happend? it has any protection ?

1 Answers  

---

The unit of quantity of electricity is the:(a) volt(b) coulomb(c) ohm(d) joule

1 Answers  

---

i am confused about generator. i have generator of 380 KVA that is 304 KW by that formula KW=KVA*0.8... then by this formula I=KW/V*1.732*0.8 the amperes are 528.673. so that is the load which i put on one phase of generator or this is total 3 phase load on Generator.......

3 Answers   Haliburton,

---

HOE WE CAN IMPROOVE BY USE OF CAPACITOR

0 Answers  

---

why we use choke in tubelights nad other lighting fixer

1 Answers  

---

why select the 3 phase power supply system in electrical system.

3 Answers   RSE, Yamaha,

---

Regarding units, for voltage we are denoting Volts as V but in case of current we are not denoting Ampere as A instead as I..Why..? Any technical reason for this..?

1 Answers  

---

I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

0 Answers  

---

Please let me know when replacing electromechanical Relays for protection of generators with sr489 multilin Relay, then there is no need to use 86 master trip relay Too. I am wondering this multilin relay has no contact to Stop breaker reclosing as 86 does

1 Answers   Neucel,

---

why there is 1 phase and 3 phase but not 2 phase and 4 phase?

3 Answers  

---

what is Electrical BMS

3 Answers  

---

what are the available sizes of pin type terminal lugs in the market today?

0 Answers  

---