Answer / siva

Restricted Earth fault relay

1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

0 Answers   TATA,

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Why battery is always operate on dc supply?

1 Answers   Vikram Ispat Industries,

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what is zero sequence curr ent ?

4 Answers  

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why elcb used in circuit

4 Answers   ABB,

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give me name of current and volatge control device

1 Answers  

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Hi, I'm running plastic reprocessing company where all motors are running only in delta. Due to that when I use start my 30 hp motor my transformer gets fuse. Where it happens two times a day. I gt a suggestion from a person about Automatic Power Factor Controller APFC. Is it useful for my problem??? Or is der any other way for solving this problem?? Upgrading the transformer is difficult. Pls give Me ur suggestion. Waiting for ur reply.

2 Answers   Shree Lingaa Polymer,

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how do we connect mcb in our home?and how does it work?

3 Answers   IOCL,

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on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help

0 Answers  

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Hot Water System (HWS). Will a 30ma elcb have more nuisance tripping than 100ma elcb

1 Answers   CIMC,

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what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.

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Can anybody tell the formula to calculate temparature rise in the cable with respect to current?

1 Answers  

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give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

0 Answers  

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