Baoding dry type transformer is an important kind of transformer equipment at present. It is an indispensable type whether people use electricity in daily life or enterprises produce. Generally speaking, the failure rate of baoding dry type transformer is very low, but, in order to ensure the smooth operation of the power supply system, the configuration of the corresponding protection device is very necessary, so, what are the common power transformer protection methods?

Six protection methods of baoding dry type transformer:

1. For the main transformer of 6-10kv workshop substation, it is generally installed with over current maintenance with time limit. If the over current maintenance action time is greater than 0.5-0.7s, it is also required to install the current breaking maintenance.

2. Gas maintenance: the capacity is 800kV. A and above oil-immersed transformers shall be equipped with gas maintenance, as the main maintenance of transformer tank internal faults and oil level drop.

3, temperature maintenance: as transformer oil temperature rise and poor cooling system maintenance equipment.

4. Single-phase grounding maintenance: it is composed of zero sequence current transformer and connected current relay. Maintenance of single-phase grounding fault on high voltage side of transformer.

5. Overcurrent maintenance: it is the relay maintenance equipment installed to avoid the overcurrent caused by the short circuit outside the transformer and as the backup of the main transformer maintenance.

6. Current flow rate cut-off maintenance: in coordination with gas maintenance, various faults on the high voltage side and inside of the transformer can be quickly removed, which is the main maintenance of the transformer.

Baoding zhongyi electric material manufacturing co., LTD. Is a professional transformer manufacturer in baoding transformer factory. It has professional production equipment, lifting equipment, tooling and testing equipment.

Main products: baoding dry type transformer, baoding box type transformer, baoding oil immersed transformer, baoding high and low voltage complete sets of equipment, etc. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.