The LZW-20 current transformer is an outdoor epoxy resin cast insulation fully enclosed structure. Suitable for current and energy measurement and relay protection in outdoor power systems with rated voltage of 10kV and below and rated frequency of 50Hz or 60Hz.

Structural features:
The LZW-20 pillar type fully enclosed outdoor cast insulation current transformer is made of outdoor epoxy resin and is molded as a whole. It has the characteristics of arc resistance, UV resistance, aging resistance, and long service life. The iron core is made of high-quality high magnetic conductivity material and annealed. The primary and secondary windings as well as the iron core are all cast in epoxy resin, which has excellent insulation performance. The outgoing line is located at the top of the casting body and is marked as P1 and P2. The output terminals of the measurement level winding are 1S1 and 1S2; The protection level winding outgoing lines are marked as 2S1 and 2S2, the transformer is of reduced polarity, and the secondary wiring part has a protective cover. And it can implement measures to prevent electricity theft. There are 4 mounting holes on the base for installation. Rated insulation level: 12/42/75kV;

Technical Specifications:
Load power factor: COS φ=0.8 (lag);
Rated secondary current: 5A or 1A;
Product standard: GB1208-2006;
Pollution level: Level IV;
Altitude ≤ 2000 meters;
The measurement level can be made into 0.5S or 0.2S level;
Can be made into a complex ratio structure;
Environmental temperature: minimum temperature of 40 ℃, maximum temperature of 40 ℃, daily average temperature not exceeding 30 ℃;

Main technical parameters: