The LMZB(J)2-12 is a 12kV indoor single-phase epoxy resin bus-type current transformer designed for precise current measurement, energy metering, and protective relaying in electrical systems. It features epoxy resin casting insulation that fully encloses the busbar primary conductor, secondary windings, and annular magnetic core, providing excellent electrical insulation and mechanical strength.
This product is equipped with three secondary windings, configurable as either one measuring and two protective windings or two measuring and one protective winding, offering flexible application options. It supports rated primary currents ranging from 1000A to 5000A with a standard secondary current of 5A. The LMZB(J)2-12 complies with IEC 60044-1 standards and is intended for indoor installations operating at 50Hz or 60Hz.
Type | Rated Transformation ratio (A) | Accuracy classes combination | Rated output CosΦ=0.8(VA) | FS | ALF | ||
Measuring | Protective | ||||||
0.2(S) | 0.5 | 10P | |||||
LMZB2-12 | 1000/5 | 0.2(S)/0.2(S) 0.2(S)/0.5 0.2(S)/10P 0.5/10P 0.2S/0.5/10P 0.2/0.5/10P |
15 20 |
15 20 30 |
15 20 30 40 |
5 (10) |
10 15 20 |
1200/5 | |||||||
1500/5 | |||||||
2000/5 | |||||||
3000/5 | |||||||
4000/5 | |||||||
5000/5 |