LZZBJ9-24-180b/2 、 LZZBJ9-24-180b/4 Current Transformer
Inhouse product
Product Details:
Introduction
LZZBJ9-24/180b/2, LZZBJ9-24/180b/4 series of full enclosed dry type current transformer, which is indoor epoxy resin
casting insulation, encloses primary & secondary windings and annular core in the epoxy resin casting body.
It is widely used for measuring current, electric energy and relaying protection in the electrical system with the rated
voltage up to 17.5(24) kV, rated frequency 50HZ or 60HZ.
Technical Data
– Rated insulation level: 24/65/125kV
– Rated secondary current: 5A or 1A
– Power frequency withstand voltage: 17.5kV, 24kV
– Rated frequency: 50/60Hz
– Ambient temperature: -5°C ~+40°C
– Altitude : ≤1000m
-Standard: IEC 60044-1, GB1208-200
Specification
LZZBJ9-24/180b/2
| Rated transformer Ratio(A) | Secondary accuracy classes combination | Rated output (VA) | Measuring current’s instrument security factor | Protective current’s accuracy limit factor | 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 | 10 15 | 15 | 15 | 5 (10) | 10 15 | 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 | ||||||
| 1250/5 | 80 | 160 | ||||||
LZZBJ9-24-180b/4
- Three secondary single ratio
| Rated transformer Ratio(A) | Secondary accuracy classes combination | Rated output (VA) | FS | ALF | Rated short-time thermal current (kA/S) | Rated dynamic current ( kA) | ||
| Measuring | Protective | |||||||
| 0.2(S) | 0.5 | 10P | ||||||
| 15-30/5 20-40/5 ………. 500-1000/5 | 0.2S/0.5/10P 0.2/0.5/10P 0.5/0.5/10P 0.2S/10P/10P 0.2/10P/10P 0.5/10P/10P | 15 | 15 | 10
15 | 5 (10) | 10 15 20 | 100I1n | 250I1n |
| 600-1200/5 | 50 | 105 | ||||||
| 750-1500/5 | 63 | 130 | ||||||
| 800-1600/5 | 80 | 160 | ||||||
| 1000-2000/5 | 80 | 160 | ||||||
| 1250-2500/5 | 100 | 200 | ||||||
2.Three secondary double ratio
| Rated transformer Ratio(A) | Secondary accuracy classes combination | Rated output (VA) | FS | ALF | Rated short-time thermal current (kA/S) | Rated dynamic current ( kA) | ||
| Measuring | Protective | |||||||
| 0.2(S) | 0.5 | 10P | ||||||
| 15-300/5 | 0.2S/0.5/10P 0.2/0.5/10P 0.5/0.5/10P 0.2S/10P/10P 0.2/10P/10P 0.5/10P/10P | 15 | 15 | 15
20 | 5 (10) | 10 15 20 | 100I1n | 250I1n |
| 400/5 ~600/5 | 50 | 105 | ||||||
| 800-1000/5 | 63 | 130 | ||||||
| 1200/5 | 80 | 160 | ||||||
| 1500/5 | 80 | 160 | ||||||
| 2000/5 | 100 | 200 | ||||||
| 2500/5 | 125 | 200 | ||||||
Outline
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