purushottam


{ City } raipur
< Country > india
* Profession * engineer
User No # 15781
Total Questions Posted # 5
Total Answers Posted # 1

Total Answers Posted for My Questions # 22
Total Views for My Questions # 114886

Users Marked my Answers as Correct # 23
Users Marked my Answers as Wrong # 5
Questions / { purushottam }
Questions Answers Category Views Company eMail

How Negative Phase Sequence Relay works in case of Synchronous Motor?

L&T,

4 Electrical Engineering 30485

How we detect the leakage current of 11 KV H.T. motors and waht is the maximim limit?

Ambuja, Pristine,

3 Electrical Engineering 8590

What is STEP VOLTAGE ?

 7 Electrical Engineering 19537

How can we measure the frequency of a rotor running in full load condition? Explain the method of measuring.

Wipro,

2 Electrical Engineering 5471

how can you calculate the value of external resistance inserted in a slipring industion motor? (eg. 110 kw / 990 rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps- 151.)

Bosch, NMDC,

6 Electrical Engineering 50803



Answers / { purushottam }

Question { Bosch, 50803 }

how can you calculate the value of external resistance
inserted in a slipring industion motor? (eg. 110 kw / 990
rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps-
151.)


Answer

This motor is used for both purpose as it is used in 15 Ton
EOT crane main Hoisting / Lowering application. External
resistance used for speed control & for High Starting Torque
both.

Is This Answer Correct ?    23 Yes 5 No