The LZCT-10 is a bushing-type current transformer designed for Ring Main Unit (RMU) and Compact Gas-Insulated Switchgear (C-GIS) applications in medium voltage power systems. The secondary windings are fully enclosed within flame-retardant plastic shells, while the primary bushing or cable passes through the inner hole. The base features installation inserts for easy and secure fixation, providing a simple and compact design.
This current transformer is ideal for current measurement, signal collection, and protective relaying in medium voltage systems. It supports secondary current ratings of 5A or 1A, withstands power frequency voltages up to 3kV, and operates at rated frequencies of 50Hz or 60Hz. The product is intended for indoor installation and complies with IEC 60044-1 technical standards.
| Model | LZCT1-C | LZCT1-P | LZCT1-CP | ||||||
| Purpose | Measuring current transformer | Protective current transformer | Double winding current transformer | ||||||
| Rated primary current | Accuracy class and rated burden (VA) | Accuracy class and rated burden (VA) | Double winding accuracy class and rated burden (VA) | ||||||
| 0.2 | 0.5 | 1 | 10P10 | 10P5 | 0.2 | 0.5 | 10P10 | 10P5 | |
| 50 | 1 | ||||||||
| 75 | 1 | 1.5 | |||||||
| 100 | 2.5 | 5 | 2 | 1 | |||||
| 200 | 5 | 5 | 1.5 | 2.5 | 2.5 | ||||
| 300 | 2.5 | 5 | 2.5 | 1.5 | 2.5 | 2.5 | |||
| 400 | 5 | 7.5 | 3.75 | 2.5 | 5 | 2.5 | |||
| 500 | 5 | 10 | 5 | 2.5 | 5 | 2 | 3.75 | ||
| 600 | 5 | 10 | 5 | 3.75 | 7.5 | 2.5 | 5 | ||
