1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?

1 Answers  

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in case of transformer the power factor is depend on input or the output

1 Answers  

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low voltage distribution is done by a)3 phase 3 wire b)3 phase 4 wire c)single phase

3 Answers  

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how to calculate fault level?

0 Answers   Mylan,

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i(1)= j0.5 p.u., i(2)= -j0.5 p.u., i(0) =j1 p.u. What kind of fault it is-- a)l-l ,b)l-l-g, c)l-l-l-g, d)l-g.

2 Answers   Areva,

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Why should not we run the IM in low voltage, if runs means what will happen?(for example instead of 400V we give 250V supply)

2 Answers  

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WHY AIR COMPRESOR IS STARTED UNLOADED

3 Answers  

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How much load can take a 16 mm aluminum cable 3 phase

0 Answers   L&T, Sanga Energy,

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what is high - pot test. what's its use?????

0 Answers  

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what is ps impedance test

0 Answers  

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1)how many types of earth? 2)how many types of megger and how to select that range? how much time taken for megger calibration( we r using megger)

1 Answers  

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what is the tolerance of electrical frequency for India? it's .5% or 1%?

8 Answers   Engro,

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