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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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

0 Answers   Hormozgan Steel,

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If a line which is drawing approximatly 2100amps what should be earthing streep size(using galwanize streep)?

2 Answers  

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The power supplied to a 33microF capacitor from a 120V, 60Hz source will be

0 Answers  

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What are the components of feedback control system?

0 Answers  

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what are FM 200 systems? why it is useful for electrical systems ?

3 Answers  

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can we correct the p.f.of ac generator?

2 Answers   APGenco,

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how can we chacke adiod in a circuit

2 Answers  

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How many turns are there in primary winding? (In Transformer)

0 Answers   Philips,

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how diside ct mf exmp.200/5 ct

0 Answers  

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how will be power factor while using the resistive load and Capacitive load?

3 Answers  

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What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?

0 Answers  

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