The LDZC-12 is a fixed cable current transformer designed for use in Compact Gas-Insulated Switchgear (C-GIS) systems. The secondary windings are fully enclosed within flame-retardant plastic shells, while the primary bushing or cable passes through the inner hole. The bottom is equipped with installation inserts for easy and secure fixation. Its simple and compact design makes it ideal for measuring current, signal collection, and protective relaying in medium voltage power cable systems.
This current transformer supports rated secondary currents of 5A or 1A and withstands power frequency voltages up to 3kV. It operates reliably at rated frequencies of 50Hz or 60Hz and is intended for indoor installation. The LDZC-12 complies with IEC 60044-1 and IEC 61869-1 & 2 technical standards, ensuring quality and safety.
| Model | LDZC1-12C | LDZC1-12P | LDZC1-12CP | ||||||
| Purpose | Measuring current transformer | Protective current transformer | Double winding current transformer | ||||||
| Rated primary current | Accuracy class and rated burden (VA) COSΦ=0.8 |
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| 0.2 | 0.5 | 1 | 10P10 | 10P5 | 0.2 | 0.5 | 10P10 | 10P5 | |
| 30 | - | - | - | - | |||||
| 50 | 1 | ||||||||
| 75 | 1 | 1.5 | |||||||
| 100 | 2.5 | 5 | 2 | 1 | |||||
| 200 | 2.5 | 5 | 5 | 1.5 | 2.5 | 2.5 | |||
| 300 | 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 | ||
| Model | LDZC2-11C | LMZC2-11P | LMZC2-11CP | ||||||
| Purpose | Measuring current transformer | Protective current transformer | Double winding current transformer | ||||||
| Rated primary current | Accuracy class and rated burden (VA) COSΦ=0.8 |
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| 0.2 | 0.5 | 1 | 10P10 | 10P5 | 0.2 | 0.5 | 10P10 | 10P5 | |
| 30 | 1.5 | - | - | - | - | ||||
| 50 | 1.5 | 2.5 | 1.5 | ||||||
| 75 | 2.5 | 5 | 2.5 | 1.5 | |||||
| 100 | 2.5 | 5 | 3.75 | 2.5 | 2 | ||||
| 200 | 2.5 | 5 | 7.5 | 3.75 | 5 | 3.75 | 1.5 | 2.5 | |
| 300 | 5 | 7.5 | 5 | 2.5 | 2.5 | 2.5 | |||
| 400 | 7.5 | 10 | 7.5 | 5 | 7.5 | 3.75 | |||
| 500 | 10 | 15 | 10 | 5 | 10 | 5 | |||
| 600 | 10 | 15 | 10 | 5 | 10 | 5 | |||
