The LCWB6-110 (W2) and LCWB6-110GYW2 series current transformers are oil tank ceramic bushing capacitive insulated U-shaped structures. The primary coil adopts a traditional U-shaped structure, which has good free characteristics and thermal breakdown stability.
The capacitive structure has a relatively uniform voltage distribution due to the level adjustment effect.
Main technical data of LCWB6-110 (W2), LCWB6-110GYW2 series current transformers:
1. Rated primary current: 2 × 50, 2 × 75, 2 × 100, 2 × 150, 2 × 200, 2 × 300, 2 × 400, 2 × 500, 2 × 600 (2 × 300), 2 × 750 (2 × 400), or 2 × 1000 (2 × 500) A.
2. Rated secondary current: 5A or 1A.
3. Rated frequency: 50Hz.
4. Accuracy level combination: p/p/p0.5 level.
5. Rated output.
5.1 For rated currents of 2 × 50-2 × 1000/5A, the rated output for levels 0.5 and P is 50VA.
5.2 For rated currents of 2 × 50-2 × 1000/1A, the rated output for levels 0.5 and P is 30VA.
5.3 For rated currents of 2 × 600, 2 × 750, and 2 × 1000/5A, the rated output of the 0.5 level winding tap (corresponding current ratios of 2 × 300, 2 × 400, and 2 × 500/1A) is 20VA.
6. 0.5 level instrument security factor (Fs): Fs ≤ 20.
7. P-level 10% multiples are 15 times.
8. The rated 1-second thermal stability current level dynamic stability current shall not be less than the values specified in the table below.
LCWB6-110 (W2), LCWB6-110GYW2 series current transformer
|
Rated primary current (A) |
50-100 |
75-150 |
100-200 |
150-300 |
200-400 |
300-600 |
|
Rated short-time thermal current (KA) |
5.3-10.6 |
7.9-15.8 |
10.5-21 |
15.8-31.5 |
21-42 |
31.5-45 |
|
Dynamic stability current (KA) |
13-26 |
20-40 |
27-54 |
40-80 |
54-108 |
80-115 |
