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

4 Answers   ADC,

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What is the resistance of human body from head to toe?

10 Answers   Bhel, Getco, Infosys,

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sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.

0 Answers  

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why the blede and jow of isoletor demage in substation?explan.

1 Answers  

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We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one 2000KVA T/R during operational hours while non- operational hous 1250 KVA T/R also used to reduce T & D losses. Similarly, 2 capacitor bank of 500KVAR and 300 KVAR also installed to balance reactive power. Now problem is around 1000 KW load PF is not maintaning 0.99 as 350 KVAR capacitor is in healty condtion. Now the PF is maintain 0.95 to 0.96.

2 Answers  

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Cb closed condition if there is a tcs fail whether cb will trip or not

0 Answers   AADC,

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why we use end termination kit for ht xlpe cables

1 Answers  

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what is the difference between fault current ant short circuit current?

0 Answers   LG Soft,

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is it possible to test of bus bar in high rise building without completed full floor ?

0 Answers  

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What are the different losses In a de mac1une'! t.xplam

0 Answers  

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what type of relays used in transformers?

24 Answers   APTransco, BSNL,

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ult of expression 'document.FrmQF.myem

0 Answers  

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