适用范围 Scope of Application

Suitable for 3kV-220kV power systems, especially for 10kV-35kV distribution networks and new energy generation systems.

Application scenarios

1) Substation/Switching Station: Protection and measurement of lines, transformers, busbars, capacitors, and reactors;
2) New energy power station: photovoltaic inverter, energy storage PCS, anti islanding protection, fault disconnection device;
3) Industrial users: important load protection for self owned power plants, large electric motors, electric arc furnaces, etc. in factories and mines;
4) Rail transit: traction substations, power monitoring system protection devices;

产品特点 Product Features

Multi-functional integration

1) Protection function: Provides 20+types of protection, covering overcurrent, quick break, zero sequence, overvoltage, undervoltage, differential, gas, non electricity, etc., to meet the needs of different equipment; 2) Measurement and control function: Real time collection of over 20 electrical parameters such as current, voltage, power, frequency, and energy, with an accuracy of 0.2 level;
3) Control function: Supports circuit breaker opening and closing, remote/local switching, and locking operations, with anti misoperation logic;
4) Signal function: LED indicator light+LCD display, visually presenting operating status, action signals, and alarm information;

High reliability design

1) Dual configuration: dual redundancy of critical circuits, no single point of failure, in compliance with power system safety regulations;
2) Improve self inspection: Real time self inspection of hardware, software, communication, and power supply, actively alerting and recording in case of abnormalities;
3) Electromagnetic compatibility: Through the GB/T14598 series anti-interference test, it can adapt to complex electromagnetic environments;
4) Wide power range: DC85V-265V/AC100V-240V adaptive to cope with power grid fluctuations;

Intelligent features

1) Adaptive protection: automatically adjust protection settings and strategies based on system operation mode;
2) Fault diagnosis: Built in fault feature library, capable of identifying over 30 typical faults to assist in operation and maintenance decision-making;
3) Data sharing: IEC61850 standardized modeling, seamless integration with scheduling and monitoring systems, achieving information integration; 4) Easy operation and maintenance: Chinese interface, simple operation, support for quick USB upgrade and data export.

系统技术指标 System Technical Specifications

Protect performance

1) Action time: Main protection<20ms, backup protection<50ms, meeting the requirement of rapid fault removal;
2) Fixed value accuracy: current/voltage fixed value error ≤ ± 2%, time fixed value error ≤+1%;
3) Fault recording: recording length ≥ 64 cycles, sampling frequency ≥ 2kHz, can fully capture the entire fault process;
4) Recloser: Supports multiple reclosing, with an adjustable reclosing time of 0.1-10s and a success rate of>98%;

1) Voltage/current: 0.2-0.5 level, power/energy: 0.5-1 level, frequency:+0.02Hz, phase:+0.5 °
2) Switching input: 14-32 channels, response time<1ms, isolation voltage ≥ 2kV;
3) Switching output: 6-16 channels, contact capacity AC220V/5A, DC220V/2A;

1) Ethernet: 10/100/1000M adaptive, GO0SE message transmission time<4ms;
2) Fiber optic communication: transmission distance ≤ 20km, bit error rate<10 ^ -9;
3) Serial communication: RS485 interface, baud rate 1200-115200bps, supports Modbus protocol;

Electrical parameters

1) Rated current: 5A/1A, rated voltage: 100V/Ω 3 (phase)/100V (line), frequency: 50Hz/60Hz;
2) Power consumption: device power consumption<20W, whole screen power consumption<100W, energy-saving and environmentally friendly;
3) Insulation performance: dielectric strength ≥ 2kV, insulation resistance ≥ 100MQ, no insulation breakdown phenomenon;

environmental adaptability

1) Vibration: resistant to 5-150Hz vibration, acceleration ≤ 0.5g, no mechanical damage or performance changes;
2) Shock: withstand 10g/11ms half sine wave shock, with normal protection function;
3) Damp heat: Under conditions of 40 ° C and 95% humidity, continuous operation for 48 hours without any abnormalities;