What is the deffrence between Siemens S7-300 & S7-400 PLC?

4 Answers   ADC,

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How many straight through joint is permissible in single core 33kv XLPE cable for a length of 985 mtr.

3 Answers   DMRC,

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at which voltage level arcing ground is occurs ??????????

0 Answers   TATA,

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Why we use two wattmeter during block rotor test and no load test of 3phase induction motor? And how can we understand the neat power requirement of from this test?

2 Answers  

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Why overhead transmission line in triangular shape?

2 Answers  

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what are factors to be consider in electrical installation like load factor,diversity factor .....

0 Answers  

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What is the permissible maximum flux density in transformer core?

0 Answers  

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How many no. of earthing pits required for commisioning a new 320KVC DG Set????How????

6 Answers   Emerson,

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If u take a kWh reading in 11 kV HT and 440 LV side at same time in yesterday today , then why LT consumed units 3-4℅ high as compared to HT units

1 Answers   Brigade,

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what is cro

3 Answers   HCL,

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What is difference between dc three point starter and dc four point starter?

3 Answers   Chettinad,

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How can we select a capacitor Bank.? i need a standard formula for that.?

3 Answers   ABB, Ace Info, HAL, IKK, MahaGenco,

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