Interested to Buy Any Domain ? << Click Here >> for more details...
what is the Space heater? why using in Electrical motor?
- 3 Answers
- 11533 Views
- I also Faced
- E-Mail Answers
Answer Posted / ash
When a motor is built as a "totally enclosed" (TE) unit, no free interchange of air can take place between interior and exterior. That's good protection against entry of solid or liquid contaminants.
But no enclosure can be airtight. As the TE motor heats and cools between "on" and "off," or from day to night, outside air will "breathe", in and out, and the water vapor in that air will condense on interior surfaces of winding and bearings. The result will eventually be insulation failure and bearing corrosion.
To prevent that, the motor's interior needs to be kept warm — above the condensation temperature — whenever it's not running. This is particularly true for motors that run only a few hours a day, are seasonally idle, or are installed in unusually damp locations. It's not a function of motor size or type. The same conditions exist, and will be equally damaging, whether the motor is 1 horsepower or 1000.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx
How is the percentage impedence of a transformer fixed at design stage???
the typical output of a solar cell is........
what is interfacing in computer studies?
Hoe do calculate the Cable size for Amps rating ?
What is speed mode?
Explain using drawings what is reverse PID action w.r.t PID controllers.
i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com
Compare jfet’s and mosfet’s.
please send me the previous year's question papers of jindal GET exams
can i use 4 number of circuit breaker as single phase manual change over switch? if yes then how plz also send ckt diagram at nazimzamurad@gmail.com
how to revers the direction of single phase motor
what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.
how freewheeling diode improves the powerfactor
