Enclosed Support Construction MV Current Transformer for Measuring and Protection
1.Product Introduction:
LZZBJ9-36 current transformer, epoxy resin casting insulation and fully enclosed support construction, encloses the primary & secondary windings and annular core in the epoxy resin casting body. The product has large periphery insulation creepage distance, withstanding dirtiness and dampness. Be suitable for measuring electric capacity, current and protective relaying in the power system of 36k
2. Technical Data:
Main technical parameter
- Rated voltage: 13.8 kV or 15kV or 22kV etc
- Rated secondary current: 5A or 1A
- Highest voltage for equipment: 17.5 kV or 24kV
- Rated power-frequency withstand voltage: 38kV or 50kV
- Rated lightning impulse withstand voltage: 95 kV or 125kV
- Rated insulation level: 17.5/38/95 kV or 24/50/125kV
Standards: IEC60044-1.2003
3. Specification:
| Rated transformation ratio(kV) | Accuracy classes combination | Rated output (VA) | Rated short-time thermal current (kA/S) | Rated dynamic current ( kA) |
| Measuring | Protective |
| 0.2(S) | 0.5 | 10P |
| 20-200/5 | 0.2(S)/ 0.2(S) 0.2(S)/0.5 0.2(S)/10P 0.5/10P 0.2(S)/ 0.5/10P 0.2/ 0.5/10P | 10 15 | 15 | 15 20 | 150I1n | 375I1n |
| 300/5 | 31.5 | 80 |
| 400/5 | 31.5 | 80 |
| 500/5 | 40 | 100 |
| 600/5 | 50 | 125 |
| 800/5 | 63 | 125 |
| 1000/5 | 80 | 160 |
| 1200~1500/5 | 80 | 160 |
| 1500-2000/5 | 100 | 160 |
| 2000~2500/5 | 100 | 160 |
4. Outline Drawing:
5.Photos:
