Instrument Transformers · Ring Main Unit & Zero-Sequence CTs
XinHuan LXK and LMZK series open-type split-core zero-sequence current transformers for medium-voltage cable earth fault protection and microcomputer protection relaying. Split-core architecture permits fast retrofit onto existing / three-core cables without disconnecting cable terminations.
| Cable Diameter Scope | Φ80, Φ100, Φ120, Φ150, Φ180, Φ200, Φ240, Φ300 mm |
|---|---|
| Structure | Split-Core (Open-type clamp installation) |
| Primary Zero-Sequence Current | 10 ~ 100 A |
| Secondary Output | 1 A / 5 A / 1 V / 0.5 V |
| Accuracy / Sensitivity | 10P10, 10P20, 1A earth fault detection |
| Operating Voltage | 0.66 kV ~ 35 kV Cable Insulation |
Watch 100% factory routine testing & quality control inspections.
Status
Published
Product ID
SPLIT_CORE_ZERO_SEQUENCE_CURRENT_TRANSFORMER_LXK
Last Updated
2026-09-10T01:57:54.441018
High-precision 3D engineering cutaway model illustrating the core, windings, insulation, conservator tank, and protection accessories.
Official XinHuan factory 2D vector General Arrangement drawing for Split-Core Zero-Sequence Ground Fault Current Transformer (LXK-120 ~ LXK-300). Includes front elevation view, top plan view, bushing center-to-center distances, mounting hole footprint, and complete vector group layout.
Conforms to IEC 61869-2 and GB/T 20840.2. High permeability silicon steel core ensures high sensitivity to micro-ampere earth leakage currents.
Reinforced export packaging with quick-clamp mounting hardware.
Specify cable outer diameter (80mm, 100mm, 120mm, 150mm, 200mm, 240mm, 300mm) and secondary protection relay threshold.
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