Kema Medium Voltage Instrument Transformers Single Phrase Enclosed Support Construction
12kv MV Transformer Single-Phrase Enclosed Support Construction
1. Product Introduction:
LZZB-12SW44 current transformer, epoxy resin casting insulation and fully enclosed support construction, encloses primary & secondary windings and annular core in the epoxy resin casting body. The product has two secondary windings ( one measuring winding and one protective winding).
It is widely used for measuring current, electric energy and protective relaying in the power system with the rated frequency 50Hz or 60Hz and highest voltage for equipment 7.2/12kV.
2. Technical Data:
Usage terms
1. Ambient temperature: -5-40℃
2. Height abovesea
level : within 1000m
3. Installation site: indoor
Main technical parameter
1. Rated insulation voltage: 12/28/75kV etc.
2. Rated frequency: 50/60hz
3. Installation Site: Indoor
4. Standards: IEC60044-1(IEC61869-1&2)
| Rated current ratio (A) | Accuracy classes combination |
Rated output |
FS | ALF | Rated short-time thermal current (kA/S) | Rated dynamic current ( kA) | ||
| Measuring | Protective | |||||||
| 0.2(S) | 0.5 | 10P | ||||||
| 5-200/5 |
0.2(S)/0.2(S) |
10 |
15 | 15 |
5 |
10 | 100I1n | 250I1n |
| 300/5 | 31.5 | 80 | ||||||
| 400/5 | 31.5 | 80 | ||||||
| 500/5 | 40 | 100 | ||||||
| 600/5 | 50 | 125 | ||||||
| 800/5 | 20 | 63 | 125 | |||||
| 1000/5 | 80 | 160 | ||||||
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.