66kV SF6 Gas Inductive Current Transformer


66kV SF6 Gas Inductive Current Transformer

Domestic Sales: 0086-0411-83199993
66kV SF6 Gas Inductive Current Transformer
Product description


It is outdoor, single phase and SF6 insulated top-head type current transformer, which is used for metering and relay protection of 33~230kV, 50 or 60Hz system.


IEC 61869-1; IEC 61869-2


Service conditions

Ambient temperature: -40~+45

Altitude: 1000m (If above 1000m,the product will be customized according to users request)

Pollution level: II, III, IV

Design features

It is SF6 gas insulated live tank structure. Primary winding is  penetrating type conducting rod structure, maximum short-time withstand current can reach 63kA/3s (in case of series connection of primary winding)

The upper enclosure is processed by welded aluminum alloy, with metal bursting disc installed at the top. If spark discharge happens inside, the bursting disc will rapidly release pressure after internal pressure rises to 0.85Mpa, hence improve the product safety and prevent the danger of explosion.

Secondary winding is cast in aluminum shield through organic materials, hence secondary circuit wont suffer electric shock caused by insulation breakdown. The electrode structure of optimum design improves the distribution of internal and external electric field, achieving excellent insulating property.

Optimized designs for external insulation make inner and external electric field distribute evenly without discharge. Two type insulators are offered for user.

  1. Composite insulator

2. High strength porcelain insulator

Density meter is mounted on the base which can show the transformer internal gas pressure (display value automatically converted to internal gas pressure at 20 ) and density, when transformer internal pressure drops down to alarm level, gas should be replenished.

Sealing ring adopts special material for SF6 gas which is applicable to a area with large temperature difference and harsh environment , annual leakage rate is less than 0.5%.

There is a multi function oil drain valve on the base, which makes it more convenient for sampling, draining and refilling.

All adopted insulation parts are environmental protection material.

The base uses spray painting or hot galvanizing, which gives a high degree of corrosion resistance.

Product Consulting

Any questions? Get in touch. We'd love to hear from you.
There is currently no content to display
Please add data record on website background.

Related Products

Previous page

Dalian Huayi Electric Power Electric Appliances Co., Ltd.


Pulandian District, Dalian City, Liaoning Province, China.


0086-0411-83146175 (Domestic Sales) 0086-0411-83199993 (International sales)

Email: (Domestic sales) (International sales)

If you have any questions, please contact us

Username used for comment:

Traffic routes


Copyright :Dalian Huayi Electric Power Electric Appliances Co., Ltd.    辽ICP备06004612号   power by