Product
Zero-sequence Current Transformer Residual Current Transformer LXK-Φ80~Φ280
- Intro：Zero sequence transformers are the core sensors for ground fault monitoring in power systems. The open-ended design allows for easy installation and replacement. - Zero-sequence current - Residual current - Split-core current transformer - Earth fault (英) / Ground fault (美)
- Category：10kV-35kV Current Transformers
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Type Description
Introduction of the Structure
This type of transformer is divided into two halves, which are cast into semi-circle with resin and then connected by clamping. During installation, the transformer can be divided into two halves and then combined into a whole, which is extremely convenient for installation.
Technical data form
1. See Table 1 for rated current ratio, accuracy level and rated output.
2. When used together with relays, the primary zero sequence current of this type of transformer meets the requirements of Table 2.
| Rated voltage ratio(V) | Accuracy level | Rated output (VA) |
| 60-75/1 | 10P10 | 1 |
| 100/1 | 1.5 | |
| 150/1 | 2.5 | |
| 200/1 | 3.75 | |
| 300/1~600/1 | 5 | |
| 150-200/5 | 2.5 | |
| 300-400/5 | 5 | |
| 500/5 | 7.5 | |
| 600/5 | 10 |
| Relay model | Relay coil connection mode | Relay scale value | Primary zero sequence current (A) | Rated current ratio (A) |
| DD-11/60 | Series | 15x1~30x1 | 2~5 | 60/1 |
| Parallel | 15x2~30x2 | |||
| DD-11/60 | Series | 15x1~30x1 | 2~6 | 60/1 |
| Parallel | 15x2~30x2 |
Overall Dimension Drawing
| Type | A (inner-diameter) | B (external diameter) | C (Thickness) | D*E (horse) | F*G (mounting hole Distance) | H (Height) |
| LXK-80 | 85 | 170 | 63 | 132*122 | 110*100 | 195 |
| LXK-100 | 105 | 190 | 65 | 132*125 | 110*100 | 208 |
| LXK-120 | 125 | 212 | 65 | 132*127 | 110*100 | 230 |
| LXK-140 | 145 | 240 | 65 | 200*133 | 150*100 | 270 |
| LXK-150 | 155 | 243 | 65 | 200*133 | 150*100 | 275 |
| LXK-160 | 165 | 268 | 65 | 200*133 | 150*100 | 290 |
| LXK-180 | 185 | 302 | 67 | 280*155 | 220*115 | 356 |
| LXK-200 | 205 | 326 | 69 | 280*155 | 220*120 | 382 |
| LXK-220 | 225 | 346 | 69 | 280*155 | 220*120 | 402 |
| LXK-240 | 245 | 386 | 80 | 280*167 | 220*130 | 438 |
| LXK-260 | 265 | 406 | 80 | 280*167 | 220*130 | 458 |
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