Answer / k.prakashchandra

Meter rev constant means rev/ kwh ? Then one rotation =60x60/400 or 9kws . 2 rotations = 18kws.Time taken is 30s. Then the av load is 18/ 30 or 0.6 kw

how we can explain arc heatng?

0 Answers  

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how to check IR values in alternator winding?

3 Answers   Birla, Naftogaz,

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what was the function of the auxillary relay?

3 Answers  

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Pl. brief about break-down maintenance of machine tool.

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A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

0 Answers  

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What will be the diameter of pipe between conservation tank and transformer

0 Answers   JLL,

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what is the current density of copper & alluminium.

0 Answers  

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selection of conductor in different voltage?

1 Answers   TATA,

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in three 3.5 core aluminium ug cable. one cable is used for one phase by shrting R,Y and B wires and other 2 cables used for Y and b phases. balace 3 neutral wires are made common and connected to load. suddenly neutral current was more than line current what is the reason behind this?

1 Answers   DLF,

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Which of the following can be operated at higher frequencies ? -SCR -MOSFET -IGBT

4 Answers  

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why supervision relay is used in incoming feeders?

1 Answers  

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There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers  

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