Answer / vijaykumar

2

Answer / harjinder singh

1. transformer design formula ?
2. how to calculate the primary turns and secondry turns ?
3. core types ?
4. how to find the primary current and secondry current ?
5. how to calculate the stacking factor ?
6. range of fulx density
7.plz send 400v step dowen 115v 600va transformer desgine
send + detail and use formula

Dear All, In a 400V power system, ratio of three current transformers installed incoming switchgear is 4000/1. Maximum three phases short circuit current of this system is 48kA. One CT is installed on neutral of upstream transformer (6/0.42kV, solidly earthed) for 51G protection. Would you please inform me about the correct CT ratio of this current transformer (on neutral)?? Thanks a million

2 Answers  

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