Answer / k.prakashchandra

22.5 is 4.5 % of 500

What is Torque Vector Control in VVVF Drives?

6 Answers   PEL, Schneider,

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can any tell me how to do wiring connection in L&T 3ph 4wire E301 CT operated energy meter, what is P1,P2,P3,P0. M1,M2,M3, L1,L2,L3.

2 Answers   Bhartiya International,

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how a circuit breakers work at fault condition .plz give a specified answer.

1 Answers   Regen Powertech,

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Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ? 2) Why ups required dedicated earth?

8 Answers   Energia, L&T, Sail,

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For a load of 40HP induction motor.what will be size of Armoured copper cable require to connect the motor to starter in Star-Delta?

1 Answers   CG,

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WHY IS THE SIZE OF HOLE OF THE EARTH POINT IN THE PLUG POINT BIGGER THAN PHASE AND NEUTRAL

7 Answers   Jindal,

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which protection used in power plant?

0 Answers  

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What are differences between Conventional & Addressable type smoke detectors?

1 Answers  

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Which circuit breaker arc quenching time is low AC or DC breaker?

1 Answers   Deltech,

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Energy metering: On the property I am renting, the supply voltage is 2 x 110 volts. These 2 x phases enter a energy meter which then exit the meter to over head lines to my house. Question 1. The meter is single phase 240 volts but is being used as 2 x phase(2 x 110volt), is this acceptable? if not, please give me the reasons. The meter details are as follows: 60Hz 15amp Imax 100 amp Kd 3,6 Wh/R 1 fase 3 hilos Model FX 231. I think it was manufactured in Brasil From this meter, the cables run along over head aluminum conductors,I estimate the cross sectional area to be 25mm diameter, but the neutral is only about 10mm square diameter, which cover a distance of 170 meters and then terminate with an underground cable of 65 meter length, total length = 235 meters. There must be a huge voltage drop over this length. This line is protected with 2 x 200 amp aluminum fuses after the meter, there is no main switch in the distribution board. These 2 phases connect directly onto 2 busbars. Surely the neutral should be the same size as the conductors if not more? Question2. What are your thoughts about this installation, should there be better protection, is the neutral too small? During the night, the lights dim then brighten all the time, this cannot be good for my electrical appliances. In my home, I only have a small electric geyser and fridge, my stove works off gas. But when i use other appliances like the washing machine or microwave oven, the light dim. The internal wiring of this house is done with solid hard drawn copper wires and of course, they have to be under rated. I am a retired electrician by trade, but not on the metering and over head mains side, my experience is on the factory maintenance side of things. Your expertise on these matters will be greatly appreciated. Please inform me how to rectify or make any improvements Kind regards, my power bill is very expensive, so I need to know how to bring it lower. Kind regards, Brian

1 Answers  

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Why earthing is required, and what effect in earthing result is more than 5 ohm and less than 5 or equal to 0 ohm

2 Answers  

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we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?

0 Answers  

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