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Woodward MRG3I5E5D
Product Name: Woodward MRG3I5E5D Digital Generator Mains Protection & Decoupling Relay
Product Introduction: High-performance multifunctional digital protection relay from Woodward MRG3 series, fully compliant with international grid parallel standards, integrates complete generator grid-connected monitoring, protection and automatic mains decoupling functions.
Technical Specifications:
- Power Supply: 24–250 VDC / 85–264 VAC wide voltage
Detailed content
- Mains Failure Detection Response Time: ≤60 ms
- Voltage Measurement Range: 0–120% rated system voltage
- Frequency Measurement Range: 45–65 Hz
- df/dt Detection Range: 0.1–10 Hz/s
- Operating Temperature Range: -25°C to +70°C
- Protection Grade: IP54
- Communication: RS485 Modbus RTU
- Output: Multiple programmable relay contact outputs
Function Features: Overvoltage/undervoltage protection, overfrequency/underfrequency protection, vector surge supervision protection, df/dt frequency change rate protection, time overcurrent protection, earth fault supervision protection, automatic grid disconnection logic, fault recording function, parameter password locking.
Application Scenarios: Diesel/gas generator grid-connected parallel systems, industrial distributed power stations, cogeneration units, ship power station grid-connected protection systems, independent micro-grid safety control systems.
