DEIF GPU-2-GS Generator Protection Unit

DEIF GPU-2-GS Generator Protection Unit

Product Description

DEIF GPU-2-GS (GPU/2/GS) is a generator protection and measurement unit from DEIF Multi-line series. It integrates comprehensive generator protection, electrical measurement, automatic synchronisation, event logging and communication functions. Adopting panel mounting design with LCD display, the unit can show 3-phase electrical values and alarm messages in real time. It supports flexible configuration of protection setpoints and time sequences, with full fault recording capability. It is designed for single and parallel diesel/gas generator systems, and can connect with DEIF genset controllers, SCADA and PLC systems. Widely used in industrial, marine, offshore and backup power applications, it is approved with CE, UL and marine certifications for harsh environments.

Technical Parameters

• Power Supply: 12/24V DC
• Measuring Voltage: 100~690V AC, 50/60Hz; max 600V AC for UL
• Measuring Current: -/1A or -/5A (CT secondary)
• Protection Functions: Overvoltage, undervoltage, overfrequency, underfrequency, overcurrent, short circuit, reverse power, earth fault
• Communication: RS485, Modbus RTU
• Relay Output: 250V AC / 24V DC, 5A (2A resistive for UL)
• Analogue Output: 0~20mA
• Operating Temperature: -20℃ ~ +70℃
• Front Panel Protection: IP54
• Mounting: Cabinet panel mount
• Display: 4×20 character backlit LCD
• Features: True RMS measurement, auto synchronisation, event log, fault memory, programmable logic

Application

1. Protection & paralleling control for diesel, gas and biogas generator sets
2. Backup power systems for factories, data centres, hospitals and critical loads
3. Auxiliary generators on ships and offshore platforms
4. Small hydropower stations and off-grid microgrids
5. Power plant auxiliary units, mobile power stations, new & retrofit generator projects
6. Work with DEIF AGC controllers for multi-generator power management and load sharing

Series Models

GPU-2-GS, GPU-2, GPU-3, GPU-3 Hydro, GPU300