WHAT IS THE SHOPE TESTING

2 Answers   TATA,

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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.

0 Answers  

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hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

0 Answers  

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What is reactive power and where it is used.

0 Answers  

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what is the meaning of WYE and DELTA in Electric meter?

0 Answers  

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Ohms law explain

1 Answers   Hetero,

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Whot is the braking capacity for MCCB. How we select different braking capacity.

1 Answers  

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What is type of transformers?

3 Answers  

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how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.

0 Answers   Hyundai,

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Why do we use 36KV LAS for 33kv line and 9KV LAS for 11KV line?

1 Answers  

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1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

0 Answers   ABC,

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What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr

0 Answers  

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