Difference between rating factor of cable and derating factor of cable?

0 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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why we r using 4-20ma instead of 0-20ma in instrumentation

2 Answers   EID Parry,

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specific difference of ICT&Auto Transformer

0 Answers   TNEB Tamil Nadu Electricity Board,

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What is FM200 Gas??Applications........

0 Answers   Emerson,

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What type of isolation transformer used in UPS's?? It's Star-Delata Or Delata-Star????Why it is used????

6 Answers   Emerson,

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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

0 Answers  

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LT, CC and LMU installed at both the outgoing circuits of 132 kv double ckt transmissio what its means ? and what are there use ?

1 Answers  

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sir can you operated Transformer on frequency from that for which is design?

1 Answers   Kirloskar,

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how much resistence in proper earthing?

5 Answers  

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Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

0 Answers  

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What is motor type DG starter

5 Answers   EFS, HDFC,

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