Dead Tank Current Transformers

LB-33 (35) Series 33(35)kV dead-tank oil immersed current transformer

Purpose
♦It is outdoor, single phase and oil immersed hair-pin type current transformer, which is used for metering and relay protection of 33/36kV, 50 or 60Hz systerm.
Standards
♦ IEC61869-1: Instrument transformers – Part 1 General requirements
♦ IEC61869-2 Instrument transformers - Part 2 Additional requirements for current transformers
Service condition
♦ Ambient temperature:-40~+40℃
♦ Altitude: LB-33(W1,W2,W3) less than 1000m
♦ LB-33GY(W1,W2,W3) less than 3500m

LB-66 69 Series 66(69)kV oil immersed current transformer

Overview:
♦ It is outdoor, single phase and oil immersed top-heaad type current transformer, which is used for metering and relay protection of 66/69/72.5kV, 50 or 60Hz systerm. It is oil/paper insulation structure, the primary is wound from voltage cable paper, and is placed sevral capacitor screen of voltage division in the primary insulation, which can improve electric fied distributing and increase the consumption of insulation material. It will be immersed with transformer oil after desicating under cacuum. It has advantages of stable and reliable performance of insulation, rich successful experience, a long life time.
Service condition
♦ Ambient temperature is -40~+40℃.
♦Altitude: ≤2000m(If above 2000m,the producer will be customized according to user's request)
♦ Environment pollution level: Ⅱ,Ⅲ,IV

LB-132 Series 132(138)kV current transformer

Purpose
♦It is outdoor, single phase and oil immersed hair-pin type current transformer, which is used for metering and relay protection of 132/138/145kV, 50 or 60Hz systerm.
Standards
♦ IEC61869-1 Instrument transformers-Part 1: General requirements
♦ IEC61869-2 Instrument transformers-Part 2: Additional requirements for current transformers
Service condition
♦ Ambient temperature:-40~+40℃
♦Altitude: ≤2000m(If above 2000m,the producer will be customized according to user's request)
♦ Environment pollution level: Ⅱ,Ⅲ,IV

LB-220 Series 220(230)kV current transformer

Purpose
♦It is outdoor, single phase and oil immersed hair-pin type current transformer, which is used for metering and relay protection of 33~220kV, 50 or 60Hz systerm.
Standards
♦ IEC61869-1: Instrument transformers – Part 1 General requirements
♦ IEC61869-2 Instrument transformers - Part 2 Additional requirements for current transformers Service condition
♦ Ambient temperature:-40~+40℃
♦Altitude: ≤2000m(If above 2000m,the producer will be customized according to user's request)
♦ Environment pollution level: Ⅱ,Ⅲ,IV

LB 110 (115)kV Series 110(115)kV current transformer

Purpose
♦It is outdoor, single phase and oil immersed hair-pin type current transformer, which is used for metering and relay protection of 110/132kV, 50 or 60Hz system.
Standards
♦ IEC60044-1 <Current transformer>
Service condition
♦ Ambient temperature:-40~+40℃
♦Altitude: ≤2000m(If above 2000m,the producer will be customized according to user's request)
♦ Environment pollution level: Ⅱ,Ⅲ,IV