Answer / asit

i=sqr3 E20/sqr(R20+iX20)

Answer / ajai shukla

It depends upon that motor is under load condition for mechanical free.
If motor is under load then I will take 2 to 3 times of full load current. Keep in mind that motor is running in DOL starter.
Under no mechanical coupling it will take 1.5 times of full load current.

Answer / h s sandhu

1.5 times the full load current of the motor. That is why reduced voltage is applied initially in star /delta starter to reduce starting current 

1.protection used in transformer ? 2.Why breather called breather ? 3.Working of conservator tank.? 4.Speaker of parliament ?

4 Answers   Power Grid,

---

What happened when capacitor connect series in ac circuit?

0 Answers  

---

how much current (in MW)can be carried max. through S/C dog & Panther Conductor ?

1 Answers  

---

What is the difference between Contactor and Circuit breaker ?

8 Answers  

---

In D O l starter motor starts as a star connected ,then in star delta starter also motor initially starts as star how come star delta is preferred from dol

2 Answers  

---

---

how actually an anti pumping device works? what is the operational principal?

2 Answers  

---

defination of reactor

3 Answers  

---

how to calculate the current carring capacity of the conductor

1 Answers  

---

what is difference between vcb and mccb

4 Answers   APTransco,

---

What is Working principle of electronic choke?

1 Answers  

---

In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

0 Answers  

---

What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

0 Answers  

---