L ------ Current transformer
B ------ With protective class
110---- Rated voltage (kV)
W3---- Pollution level
◆It is outdoor, single phase and oil immersed hair-pin type current transformer, which is used for metering and relay protection of 66~330kV, 50 or 60Hz system.
◆IEC 61869-1; IEC 61869-2
◆Ambient temperature: -40~+45℃
◆Altitude: ≤1000m (If above 1000m,the product will be customized according to user’s request)
◆Pollution level: II, III, IV
◆It is oil paper insulation structure. The main insulation is wound from high voltage cable paper, and is placed several capacitor screen of voltage division in the primary insulation, which can improve electric field distributing and decrease the consumption of insulation material. It will be immersed with transformer oil after desiccating under vacuum. It has advantages of stable and reliable performance of insulation, rich successful experience, a long life time.
◆Perfect fluidity performance of transformer oil is good for heat dissipation, it also has self recover ability for the failure of partial discharge caused by air bubble and dust.
◆The current ratio can be changed easily by switching the connection method of Primary winding to series or parallel.
◆Hermetically sealed stainless steel metallic bellows is installed on the top, which protect the transformer oil from moisture and extend the life time, also there is a oil level gauge on the bellows for observing the changing of oil volume.
◆Two optimization design external insulation types offered for user for inside and outside electric field without discharge
1. Composite insulator
2. High strength porcelain bushing
◆There is a multi function oil drain valve on the base, which make it more convenient for sampling, draining.
◆All adopted insulation parts are environmental protection material.
◆Secondary terminal board is made of epoxy casting, the seal performance is more reliable.
◆The base uses spray painting or hot galvanizing, which gives a high degree of corrosion resistance.
◆Fasteners and nameplate are stainless steel.
Dalian Huayi Electric Power Electric Appliances Co., Ltd.
Pulandian District, Dalian City, Liaoning Province, China.