Answer / k.prakashchandra

Several factors decide the cost.e.g. SGS in Karnataka is
supplying at 13p per unit whereas mini hydels charge about
Rs 3 per unit.However the cost in Rs may roughly taken as 1,
hydel -2,2. Thermal-3,3. diesel-8,4.Solar-4 5. gas -3, 5.
wind-3.5

IN bateery size of positive is biger than negative .why?

8 Answers   Power Grid,

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i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

0 Answers   Bay Fishing Corporation,

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Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

0 Answers  

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1. which type of transformer connection is preferred in case of power supply transformers? (A) Star/Star (B) Delta/Delta (C) Star/Delta (D) Zig Zag/Star 2. In a power transformer usuall which winding is closer to the core? (A) Primary winding (B) Secondary winding (C) Low Voltage winding (D) High Voltage winding 3. The power factor of a purely inductive load is (A) Zero (B) Lagging (C) Leading (D) Unity.

9 Answers   CECRI_Central_Electrical_Research_Institute,

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what is pole slip ?

4 Answers   NTPC,

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In a star to star transformer can we use a common neutral for both star connected primary and secondary

1 Answers  

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what happen if we give square wave instead of sine wave to the transformer

8 Answers  

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In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

0 Answers  

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how to calculate the fault in substation

0 Answers  

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how many single tension hardware are required on a double circuit transmission tower?

0 Answers  

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how works inductive &capacitive sensors?

0 Answers  

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What is the different between earthing & Neutal

3 Answers  

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