Answer / iamdon

Si content in CRGO steel=(3-4.5)%

Higher Si content(greater than 5%) makes the core brittle which
is not desirable as it makes difficult for punching of core
laminations.

Author:arbelectbit@yahoo.com

what is per unit calculation?looking for simple and strong explanation thk u

0 Answers  

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I have connected 04nos. earthings to a transformer through 04nos. earthing pits seperately. 02nos. earthings are connected to T/F body, and 02nos. earthings are connected to T/F neutral.T/F capacity is 2000KVA, 11KV/415V. But after completing of 02 years successful operation ,we are facing following problems- 1. CT/PT occured blast one time 2. HT cable box occured blast two times 3. One body earthing strip and one neutral earthing strip of transformer are overlapping at some places. Whenever these two strips are pressed at overlapped points, they made spark. What is the reason of spark? Please explain the reason & rectification of above problems

5 Answers  

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What is marx circuit?

0 Answers  

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what is the use of CAPACITOR in CFL lamp?

6 Answers   Areva, Autopal,

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which type of cabel

0 Answers   DMRC,

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CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

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why D.C excitation is given to sunchronous motor?

6 Answers  

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If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

0 Answers   UltraTech,

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can we make a loop between neutral and body for grounding?

2 Answers  

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In supply RYB are mentioned. But in transformers, why they are mentioning XYZ?

3 Answers  

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what is working of Master trip relay ?

9 Answers  

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