hey guys i recently saw a long transmission line in which a sort of balloons in red and white color were hanging at each section.do u have any idea why are they kept for?

3 Answers  

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What are the different condition monitoring techniques for a motor?

1 Answers   DAE,

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what is the difference between upper impedance and lower impedance distance relay?

3 Answers   Havells, Power Grid,

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why transformer are not used in D.C SUPPLY

5 Answers  

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how to find the voltage's of a transmission line plzz help with pictures i am not able to understand

0 Answers   Student,

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why v use only sodium bulb or orange color lights on streets, y nt CLF OR TUBE LIGHTS

3 Answers  

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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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1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

0 Answers  

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Ns=120f/p. what is 120?

10 Answers   IAR, L&T, Ramada, Toshiba,

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In a transformer, the hysteresis and eddy current losses depend upon 1.load current 2.maximum flux density in core 3.type of lamination 4.supply frequency The correct statements are (a) 1 and 3 (b) 2 and 3 (c) 1 and 4 (d) 2 and 4

9 Answers  

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when we connect a ceiling fan to a inverter's output voltage, it give some noise, why?

5 Answers   Luminous,

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what is the ambient temperature of transformer oil & winding?

2 Answers   Reddy Labs,

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