Answer Posted / ullas

using two methods:
1.fall of potential method
2.earth tester(device)

factors affecting earth resistance are
1. Shape & material of the earth electrode.
2. Depth of the electrode at which they r burried in soil.
3. Specific resistance of the soil surrounding the electrode

(Specific resistance of the soil varies depending on
moisture content in the soil..... varies from 80*10^3ohm-m
to 80*10^6ohm-m)

hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

2732

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What are the main advantages of bode plot?

1293

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send me any model test paper of clerical post of state bank of india.......

1902

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we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?

1972

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what will happen when the dc supply is given to the capacitor?

1586

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why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?

2861

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how calculate gd2 of ht motors

2368

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2. What are the parameters of EHT sub-station?

2406

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CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

2463

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what is mean by Digital Logic Meter (DLM)

2444

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Igfet is a

1690

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We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

5228

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please send previous exams question papers

1874

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I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF

4085

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can anybody sent me power grid questions. what subject should i prefer for preparation?

2168

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