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The undesirable property of an electrical insulating material is
Answer Posted / abhishek
C: high thermal conductivity
| Is This Answer Correct ? | 14 Yes | 3 No |
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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
How can we calculate the motor frame sizes?
Draw the line diagram of diffretial relay connected to transformer?
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compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor
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