What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.

0 Answers  

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What happen if two protection core (3p) of VT in LAVT are 11kv/root3, 110v/root3 and one protection core (3p) is 11kv/root3, 110v/3

1 Answers  

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what is the difference between 2phase & 3 phase?

1 Answers   NTPC,

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what is the iron loss in a 11KV/440V transformer?

2 Answers   Bhel, TVS,

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is tree is a good conductor and it may be used for conductor?

3 Answers  

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how to calculate the ct burden?

1 Answers   Hydropower,

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which type of motor is used in automatic swing gate

0 Answers   Sail,

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how you configure motorvision relay (L&T make)from DCS

0 Answers   Ispat,

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which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing

0 Answers  

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how we calculate the dick for a pole?

0 Answers   Power Grid,

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What is the GI Earth Flat Size recomended for 33KV 2000KVA Distribution Transformer

1 Answers  

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We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

0 Answers   Siemens,

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