DC Motors applications used in Lift/Elevators

8 Answers   IOCL, SCS, Usha Martin,

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Difference between auxliary relay & pla relay

1 Answers   Reddy Labs,

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if suplly 11kva its give 440volts then if suplly is given 10kva whats the volts given

3 Answers  

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plz tell me about BACK emf and how it generates?

2 Answers  

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why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?

0 Answers  

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what is the voltage level which is used in transformer short circuit test

1 Answers  

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What is the need for checking knee point voltage for CT's?

1 Answers  

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As per is what is distance between two chemical type earth pit

2 Answers   DAR, Dr Reddys,

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What are the major reasons for balancing hydro-thermal mix?

0 Answers  

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Why is it that North America uses 60 hz frequency while Europe uses 50 hz?

4 Answers  

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HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.

0 Answers  

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please send me the previous year's question papers of jindal GET exams

0 Answers   Jindal,

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