LZZBJ9 12kV Indoor Current Transformer
LZZBJ9 12kV Indoor Current Transformer
Application
Current Transformer LZZBJ9 is made of indoor cast-resin insulated totally enclosed structure. It’s designed for current power measurement and relay protection in AC power system with rated frequency 50Hz, rated voltage 12kV and below.
Specifications
Rated insulation level: 12/42/75kV.
Rated secondary current: 5A or 1A.
Power frequency withstand voltage: 12kV.
Rated frequency: 50/60Hz.
Ambient temperature: -5°C ~+40°C.
Altitude: ≤1000m.
Standard: IEC 60044-1.
Outline Dimension
Parameter
| Rated current ratio (A) | Accuracy classes
combination | Rated output (VA)
COSФ=0.8 | FS | ALF | 1s short-time thermal current (kA) | Rated dynamic current (kA) | ||
| Measuring | Protection | |||||||
| 0.2(s) | 0.5 | 10P | ||||||
| 10-200/5 | 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 | 10
15 | 15 | 15 | 5
(10) | 10
15 20 | 150I1n | 375I1n |
| 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 | ||||||
| 1200-1500/5 | 80 | 160 | ||||||
| 1500-2000/5 | 100 | 160 | ||||||
| 2000-3150/5 | 130 | 160 | ||||||
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