Buy LXK-120 Zero-Sequence Current Transformer from Comewill, a trusted China manufacturer and supplier of protection current transformers. Designed for 10kV and below power systems, this open-type zero sequence CT features a cable-through-core primary structure, 3kV secondary insulation withstand voltage, and epoxy resin casting for reliable protection performance.
What sets this product apart is its cable-through-core primary circuit structure, which means only the secondary coil’s insulation requires consideration. The secondary coil boasts a 3kV power frequency withstand voltage, and the series includes popular models such as LXK-φ80, LXK-φ100, LXK-φ120, LXK-φ150, and LXK-φ180—all manufactured to strict quality standards by Welcome (Wenzhou) Electric Co., Ltd.
The LXK-120 Zero-Sequence Current Transformer from Welcome (Wenzhou) Electric Co., Ltd. is specially designed for overcurrent protection in 10kV and below, 50Hz power system lines, as well as for high-voltage three-phase AC generators and motors, and is intended for indoor use only. It is compatible with transmission cables whose outer diameter does not exceed 120mm; for precise dimensional details of LXK-80 to LXK-160 models, please consult the technical parameters table provided by our technical team.
L: Current transformer
X: Zero-sequence
K: Open-close type
Φ120: Nominal diameter of the inner hole
At Welcome (Wenzhou) Electric Co., Ltd., all our products meet the requirements of national standards GB20840.1-2010 and GB20840.2-2014, and we’re also able to tailor our offerings to fit the unique needs of individual clients. Here’s a breakdown of the key tech specs for our products:
Rated insulation: 0.72/3 kV
Rated frequency: 50Hz/60Hz
Rated secondary current: 5A or 1A
Operating temperature range: -25°C ~ +40°C
| Type | Classes | Rated Current Ratio (A) | Rated Output (VA) |
| L XK-80 (80/165*57) | 10P5 ~ 10P10 | 50/575/5100/5150/5200/5250/5300/5400/550/175/1100/1150/1200/1250/1 | 5 ~ 1 |
| LXK-100 (100/180*55) | 10P5 ~ 10P10 | 5 ~ 1 | |
| LXK-100 (100/180*57) | 10P5 ~ 10P15 | 10 ~ 1 | |
| LXK-120 (120/204*57) | 10P5 ~ 10P15 | 10 ~ 1 | |
| LXK-120 (120/210*65) | 10P5 ~ 10P15 | 10 ~ 2.5 | |
| LXK-120 (120/210*100) | 10P5 ~ 10P20 | 15 ~ 2.5 | |
| LXK-120 (120/250*80) | 10P5 ~ 10P20 | 15 ~ 1 | |
| LXK-150 (150/235*57) | 10P5 ~ 10P10 | 10 ~ 1 | |
| LXK-150 (150/280*80) | 10P5 ~ 10P20 | 15 ~ 1 | |
| LXK-160 (160/250*80) | 10P5 ~ 10P20 | 5 ~ 1 | |
| LXK-180 (180/265*57) | 10P5 ~ 10P10 | 10 ~ 1 | |
| LXK-180 (180/310*80) | 10P5 ~ 10P20 | 15 ~ 1 | |
| LXK-200 (200/330*80) | 10P5 ~ 10P20 | 15 ~ 1 | |
| LXK-240 (240/350*80) | 10P5 ~ 10P20 | 15 ~ 1 | |
| LXK-260 (260/370*80) | 10P5 ~ 10P20 | 15 ~ 1.5 |
Note: Should you need specs like current ratio or installation dimensions that go beyond the above ranges, Welcome (Wenzhou) Electric Co., Ltd. is open to discussing customizations and reaching a mutual agreement with the buyer.
At Welcome (Wenzhou) Electric Co., Ltd., our transformers feature an open-close design and are cast from epoxy resin. When it comes to fitting them up, you can split the transformer into two halves first, then bolt the two parts back together as a single unit—making the whole installation process a breeze. This model comes in seven different variants from our company, each with a unique inner diameter: 80mm, 120mm, 140mm, 150mm, 160mm and 180mm.
Address
No.777 Wanweng Road, Wengyang Sub-district, Yueqing City, Wenzhou City, Zhejiang Province, China
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