Six ways to protect the power transformer you know several
24-01-22
First of all, the * * * types are: gas maintenance: oil-immersed transformers with a capacity of 800k V.A and above shall be equipped with gas maintenance as the main maintenance for internal faults and oil level drop in transformer oil tank.
The second way is: for the main transformer of 6 ~ 10kV workshop substation, overcurrent maintenance with time limit is generally installed. if the overcurrent maintenance action time is greater than 0.5~0.7s, current speed interruption maintenance should also be installed.
The third way is: current speed off maintenance: with gas maintenance, it can quickly remove various faults on the high-voltage side of the transformer and its internal, which are the main maintenance of the transformer.
The fourth way is:
Phase grounding maintenance: it is composed of zero sequence current transformer and current relay connected with it. As the high voltage side of the transformer presents single-phase grounding fault maintenance.
The fifth way is: temperature maintenance: as a transformer oil temperature rise and cooling system poor maintenance equipment.
The sixth way is: over-current maintenance: is to avoid the transformer external short circuit caused by over-current and as a transformer main maintenance backup maintenance and installation of the relay maintenance equipment.
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Henan Jugao Jiaye Electric Power Equipment Co., Ltd.
Telephone: 86-0375-3017777
E-mail: HNJGJY@163.COM
Address: 337 Huanghe Road, Pingdingshan City, Henan Province, China
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