when the direction of a 3phase induction motor is
reversed , is there any losses increases?

Answer Posted / deltawye

There is no losses increases,it only change it direction of
rotation....

Is This Answer Correct ?    36 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.

3176


is oil viscosity affect on motor current?

1602


what id a dry type transformers and its function ?

1425


How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.

4414


Write a note on materials used as a fuse element.

1775






what is doubling factor in making current of a breaker?

1676


how to deside the capacity of chock for drive?

1714


HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?

1534


Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.

1705


plz tel me syllabus and exam date 4 jr executive engg (electrical)

1608


how much leakage current is allowed in MC61A L&T make relay?

3228


we are small scale industry in production of rice & rice bran. Pls let me know how to take contract demand for our industry.. (for information we have total 600.hp)

3671


Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

1049


do you have some of interview Questions in power and genrator section in general whith answers

1753


Disadventage of cable-gland earthing if any ?

1773