Our company produces the JT - LJ (K) series products of zero sequence current transformer (cable), aperture Φ ㎜ 40-260 ㎜ Φ. The high - density zero sequence current transformer with various capacity, variable ratio and accurate limit coefficient, and the high sensitivity zero sequence current transformer with small current grounding device, relay, etc. The product is ABS engineering plastic shell, fully enclosed resin casting, beautiful appearance, good insulation performance, and has the characteristics of high sensitivity, good linearity, reliable operation, convenient installation and durability. Its performance is better than general zero sequence transformer, and it is widely used in electromagnetic relay protection and electronic microcomputer protection device. Users according to the various operation modes of power system (neutral grounding or not, big resistance grounding, small resistance, arc suppression coil grounding) and different use of zero sequence current transformer.
Two.Model specification
Three. Use environment and conditions.
1. Environment
The highest temperature of 1.1 + 80 ℃, the minimum temperature 20 ℃, the average daily temperature shall not exceed + 60 ℃;
1.2 the altitude shall not exceed 1000M;
1.3 relative humidity < 85.
2. Requirements for grid.
2.1 ac voltage 0.4kv ~ 66KV;
2.2 power grid frequency 50HZ.
Four. Please specify when ordering products.
1. Product model and inner hole diameter;
2. Zero sequence current and second zero sequence current (current ratio);
3. Secondary load capacity or load impedance;
4. Accuracy limit coefficient and accuracy level (if necessary;
5. Please contact our company for any other internal diameter specifications or different type zero-sequence transformer.
