ZH-102 Portable Waveform Recorder

Zhongyuan Huadian ZH-102 Portable Fault Recorder

1. Overview
1.1 Product Overview
The ZH-102 Portable Fault Recorder is designed based on a powerful PowerPC platform, utilizing large-scale FPGA technology combined with a high-performance embedded real-time operating system. It is a device for dynamic fault recording and analysis that meets the evolving demands of power systems. It can be widely applied in various voltage level lines, generator-transformer units, transformers, and other scenarios requiring fault recording, state logging, and analysis. The ZH-102 Portable Fault Recorder complies with the following main standards:
GB/T 7261-2008 Basic Testing Methods for Relay Protection and Security Automatic Equipment
DL/T 553-2013 General Technical Conditions for Dynamic Recording Devices in Power Systems
GB/T 14598.301-2010: Technical Requirements for Microprocessor-Based Generator-Transformer Fault Recorders
2. Technical Features
2.1 Product Features
1. Vxworks + Ubuntu System

• The upper computer uses the Ubuntu system, while the lower computer employs the Vxworks system design, ensuring immunity to viruses and Trojans, thus guaranteeing system security and stability.
2. Waveform Analysis and Editing
• Supports waveform editing
• Supports analysis methods such as vector, sequence component, harmonic, impedance, power, and sub-cycle component analysis
• Custom functions can be implemented using a formula editor
3. Multiple Fault Recording Trigger Modes
• Sudden change trigger for recording
• High over-limit trigger for recording
• Low over-limit trigger for recording
• 3rd, 5th, and 7th harmonic trigger for recording
• Current deviation trigger for recording
• Frequency rate-of-change trigger for recording
• Frequency high over-limit trigger for recording
• Frequency low over-limit trigger for recording
• Positive sequence high over-limit trigger for recording
• Positive sequence low over-limit trigger for recording
• Negative sequence over-limit trigger for recording
• Self-generated zero-sequence over-limit trigger for recording
• Self-generated zero-sequence sudden change trigger for recording
• Digital input trigger for recording
• Manual trigger for recording
4. Remote Connectivity Operation
• Equipped with dedicated PC software for remote connectivity operation, allowing waveform viewing, fault record file retrieval, and export via computer 
5. Comprehensive Channel Types
• Includes AC voltage, AC current, clamp meter, Hall sensor, DC voltage, DC current, and digital input

access channels; channel types and ranges can be customized according to customer requirements