CYG SUNRI CO., LTD.

PRS-7973 Multifunction Fault Recorder

Overview/Introduction/Application Technical Features/Advantages Technical Specifications/Sub-models Related Solutions

PRS-7973 Multifunction Fault Recorder

Product Description

PRS-7973 fault recording and ranging equipment is used to record the whole process of change of electrical quantities such as current, voltage, frequency, and their derived quantities (active power and reactive power etc.) as well as relevant non-electrical quantities during various faults in the power system, e.g. short circuit, oscillation, frequency collapse, and voltage collapse etc.

Scope of Application

PRS-7973 fault recording and ranging equipment adopts centralized design concept and allows flexible configuration according to engineering demands. It can serve both as fault recording and ranging equipment for power systems of various voltage levels and as unit fault recording and analysis equipment for power generation units of various capacities.

Technical Features/Advantages

装置基于Linux系统编程，多进程、多线程方式，合理利用系统资源和调度模式，保证监控系统的可靠性和实时性，安全性。

装置采用工业级数据库管理系统（DBMS），确保数据高效安全存储和检索的网络分布化实现。

装置采用平台化设计理念，平台和应用完全解耦设计，数据统一管理，规约模块化、服务化，实现友好的组态化配置。

装置故障录波模块功能强大，基于ComTrade文件格式，图形可任意缩放，可进行矢量图分析、谐波分析、曲线运算（包括正序分量、负序分量、零序分量、差动电流、制动电流、突变量等曲线）以及阻抗分析。

提供SV、GOOSE、MMS、CMS等网络报文的抓取和分析功能，监视及分析任意时刻的报文情况。

系统专注于保护之间的虚端子可视化监视，形象展示并监视保护之间的交互细节。

提供专业的SCD模型文件管控模块，提供专业的智能诊断分析和建议功能。

专注于保护设备、交换机的网络通信监视，能精准定位故障。

对于二次设备本体异常、过程层回路异常、跳合闸回路异常等缺陷问题进行智能分析，并给出问题原因及处理建议，降低问题处理难度提高处理效率。

二次设备工作电压、温度、光功率等在线监测数据进行实时分析，发现二次设备隐性故障，提前预警。

Specifications/Submodels

Control unit
CPU	Single CPU: ≥4 core, dominant frequency≥3.0GH or multiple CPUs: ≥4 core, dominant frequency≥2.2GHz
Memory
Hard drive capacity	≥ 2 hard drives, each 1TB
Ethernet port	≥ 6 / host
System mean time between failures (MTBF)	≥ 30000h
Annual availability of system	≥ 99%
Screen response time when calling real-time data	≤ 2 s
Query response time	≤ 30 s
Incident report transmission time	≤ 5 s
Wave recording file transmission time	≤ 30 s
General remote metering transmission time	≤ 20 s
Network communication state change time at station level	≤ 1min
Fault briefing time	≤ 10 s
System alarm accuracy	100%
Onsite equipment control accuracy	100%

Acquisition unit parameters
Continuous message record	≥3 days (average flow≤200Mbps, non-SV ratio ≤10%)
Continuous message record	≥7 days (average flow≤200Mbps, non-SV ratio≤10%)
Steady-state wave recording record	≥7 days (sampling frequency: 2000Hz or 1000Hz)
Transient-state wave recording record	3000 times (sampling frequency: 10000Hz or 4000Hz)
Abnormal message event record	≥10000
Abnormal message record	≥5000
Message record capturing rate	100%
Message record data integrity rate	100%