Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

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what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)

0 Answers   TATA,

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List the advantages of star-delta starter with induction motor?

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Please give me a solid reason there are 2 ELCB's If we take Phase from ELCB NO:1 an Netural from ELCB N:2 why ELCB is tripping when we connect the Load?please brief me with detail

3 Answers  

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when a hand crancked meggar is used to check most three phase induction motors, how many tests r rquired? Why?

1 Answers  

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what happen "when Dyn11 is parallel operation with Dyn1"?

9 Answers  

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Do you know how to joint the H.T and L.T Cables?

23 Answers   KESC, MGVCL, Nokia, Oil Country Tubular, Power Control, SAGT, Siemens, Simco, Vivek Engineers,

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Can I use star delta connected induction motor for dual supply voltage?

0 Answers  

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We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

3 Answers  

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In power transformer tappings are provided on A high voltage side B low voltage side C In middle of both the windings D both high and low voltage side

2 Answers   NNN,

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what is the meaning of 16/20 mva of transformer

7 Answers   JSW,

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hou we find and calculate the maximum lode capesity of transforer?

1 Answers  

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