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DT-HC20 Small-Current Grounding Fault Line Selection Device
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Overview
The DT-HC20 desktop microcomputer-based small-current ground fault line selection device is equipped with a variety of integrated line-selection methods. It is suitable for identifying and determining the faulty line in single-phase ground faults occurring in power grid systems with various grounding configurations.
Structural performance and functional features of the device
- Desktop-style form factor, dimensions: 482.6mm × 266.7mm;
- Working power supply: AC/DC 220V;
- Standard model, capable of collecting data from 42 high-voltage line feeders (can be increased to 60 feeders if special requirements apply);
- The device can distinguish between transient ground faults and persistent ground faults.
- The device comes with a built-in Chinese input method, allowing you to define line cabinet numbers using Chinese characters.
- No need for setting; simple debugging; minimal maintenance required; automatically identifies and displays the faulty circuit.
- It can distinguish between line grounding and busbar grounding.
- Large-screen color touch LCD display;
- Multilingual display;
- Compatible with signal acquisition from current transformers of various turns ratios;
- Scalable ground fault line direct tripping function;
- It is adaptable to various communication mode requirements and features multiple communication interfaces, including RS232, RS485, fiber optic network port, and Ethernet port. It supports a variety of communication protocols such as MODBUS, CDT, and IEC61850.
- The device offers scalable ground fault recording functionality and allows on-site waveform file retrieval directly via its built-in screen size.
- The controller panel is equipped with a front-mounted standard USB port for convenient data export.
- The controller can be expanded with a miniature printer that uses thermal printing—fast, clear, and resource-efficient.
Address
No. 010, Riyuetan Road, Economic Development Zone, Luancheng District, Hebei Province
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