The LSZ-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. This three-phase current transformer features a fully enclosed flame-retardant plastic shell, allowing primary bushings or cables to pass through its inner holes. The base is equipped with installation inserts for secure and easy fixation.
Ideal for current measurement, signal collection, and protective relaying, the LSZ-10 CT supports secondary currents of 5A or 1A and withstands power frequency voltages up to 3kV. It operates reliably indoors at standard frequencies of 50Hz or 60Hz, complying with IEC 60044-1 and IEC 61869-1 & 2 standards.
| 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 | 1 | |||||
| 200/5 | 1 | 2.5 | 1.5 | 1.5 | 1.5 | ||
| 300/5 | 2.5 | 5 | 2.5 | 2.5 | 2.5 | ||
| 400/5 | 5 | 7.5 | 5 | 2.5 | 2.5 | ||
| 500/5 | 5 | 7.5 | 5 | 5 | 5 | ||
| 600/5 | 5 | 7.5 | 5 | 5 | 5 | ||
