The LAJ1-12QⅡ current transformer is a 12kV indoor single-phase unit featuring epoxy resin casting insulation and a fully enclosed support structure. It integrates the primary and secondary windings along with the annular magnetic core within a durable resin body, ensuring excellent dielectric strength and long-lasting mechanical performance in medium-voltage applications.
This CT is designed for lightweight construction and allows omni-directional installation, making it ideal for compact and flexible switchgear layouts. It is resistant to harsh indoor conditions such as humidity and pollution. The LAJ1-12QⅡ is widely used for current measurement, energy metering, and relay protection at rated frequencies of 50Hz or 60Hz, and complies with IEC 60044-1 standards.
| Rated transformer Ratio(A) | Accuracy classes combination | Rated output (VA) |
FS | ALF | Rated short-time thermal current (kAS) |
Rated dynamic current (kA) |
||
| Measuring | Protective | |||||||
| 0.2(S) | 0.5 | 10P | ||||||
| 5~300/5 |
0.2(S)/0.2(S) 0.2(S)/0.5 0.2(S)/10P 0.5/10P |
10 15 |
15 |
15 20 |
5 (10) |
10 15 |
1001n | 250I1n |
| 400/5 | 31.5 | 80 | ||||||
| 500/5 | 31.5 | 80 | ||||||
| 600/5 | 40 | 100 | ||||||
| 800/5 | 50 | 125 | ||||||
| 1000/5 | 63 | 125 | ||||||
