Digital Fault Recorder

1. What voltage levels and application scenarios does the device support?
It is suitable for conventional substations at 110 (66) kV and above, as well as hydropower, thermal power, nuclear power, and renewable energy stations such as wind and solar farms.

2. What are the main functions of the device?
Main functions include transient fault recording, continuous steady-state recording, message recording, real-time monitoring, generator testing, waveform analysis, and fault location.

3. What is the standard configuration for analog and binary inputs? Can they be expanded?
The standard configuration is 64 analog channels and 128 binary channels. Analog inputs can be expanded by 32 channels, and binary inputs by 64 channels.

4. Does it support high-frequency or DC signal input?
Yes. High-frequency/DC channels are optional and can be configured with up to 16 channels.

5. What is the sampling rate and time synchronization accuracy?
The sampling rate is up to 10 kHz, and time synchronization accuracy is 1 μs or better, meeting the high-precision recording requirements for transient fault processes.

6. What are the structural features of the device?
The device features an industrial-grade fully embedded structure with high reliability, designed for long-term continuous operation in power system environments.

7. How does the device connect to field signals?
The device receives conventional analog and binary signals, is compatible with mainstream secondary equipment signal types, and can be easily integrated into existing substation systems.

8. Is the device suitable for long-term continuous operation?
Yes. The device adopts a highly reliable industrial-grade fully embedded structure and is designed for long-term continuous operation in power systems.