The LSY-10 Three-in-One Current Transformer is designed for Ring Main Unit (RMU) and Compact Gas-Insulated Switchgear (C-GIS) applications in medium voltage power systems. It features a fully enclosed flame-retardant plastic shell, allowing primary bushings or cables to pass through its inner holes. The transformer is equipped with installation inserts at the bottom for easy and secure fixation.
This product is suitable for current measurement, signal collection, and protective relaying in medium voltage systems. It supports secondary currents of 5A or 1A, withstands power frequency voltages up to 3kV, and operates at rated frequencies of 50Hz or 60Hz. The LSY-10 complies with IEC 60044-1 standards and is intended for indoor installation.
| Model | LSY100-Φ79C | LSY100-Φ79P | LSY100-Φ79CP | ||||
| Purpose | Measuring current transformer | Protective current transformer | Double winding current transformer | ||||
| Rated current ratio | COSΦ=0.8 Accuracy class and rated burden (VA) |
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| 0.5 | 1 | 10P10 | 0.5 | 10P10 | |||
| 150/5 | 1 | ||||||
| 200/5 | 1 | 2.5 | |||||
| 300/5 | 2.5 | 5 | 0.5 | 0.5 | 0.5 | ||
| 400/5 | 5 | 7.5 | 0.5 | 0.5 | 0.5 | ||
| 500/5 | 5 | 7.5 | 0.5 | 0.5 | 0.5 | ||
| 600/5 | 5 | 7.5 | 1 | 0.5 | 0.5 | ||
