DEIF GPU/2/GS Generator Protection Unit

Technical Specifications

Model:GPU/2/GS

Brand:DEIF

System compatibility:Multi‑Line2 series panel‑mount generator protection unit,focuses on generator multi‑fault protection,without full synchronisation paralleling control logic. Supports multiple optional communication boards,works for marine and industrial genset,pairs with external display terminal for local operation and reading.

Function:Micro‑processor‑based all‑round generator protection unit. Measures three‑phase AC voltage up to 690V and CT secondary current 1A/5A. Provides abundant ANSI protection:reverse‑power,over‑current,inverse‑time over‑current,over‑under‑voltage,over‑under‑frequency,earth‑fault,current unbalance etc. Stores up to 150 fault event records. Multiple configurable digital inputs and relay outputs. Supports parameter setup via DEIF PC service tool. Various communication option boards for upper‑computer SCADA interaction.

Installation:Panel cut‑out mounting inside switchgear cabinet,slot‑type structure for plug‑in option boards,screw terminals for PT/CT and field wiring.

Interface:

‑Multiple internal slots for communication and I/O option boards

‑Screw terminal:three‑phase PT voltage input(max 690V AC)

‑Screw terminal:three‑phase CT current input(1A /5A secondary)

‑Multi‑channel configurable digital input terminals

‑Potential‑free relay output terminals for trip and alarm

‑Multi‑pin port for external display connection

‑Service port for PC configuration

‑RS‑485 Modbus RTU / CAN bus communication terminals(depends on option board)

Circuit feature:True‑RMS sampling,surge suppression for high‑voltage measuring terminals,galvanic isolation for measuring circuits,non‑volatile memory for parameter and event‑log storage,hardware watchdog supervision.

Feature:Legacy end‑of‑life protection controller,different hardware option combinations exist;must confirm slot option configuration before replacement. Measuring voltage range 100‑690V AC.

Diagnostic:Fault alarm and measuring data can be checked on external display unit or uploaded to SCADA system via communication bus.

Power supply:12‑24VDC wide‑range DC auxiliary power,typical power consumption＜20W

Protection class:IP65 for front panel;IP20 for rear terminal area

Horizontal operating temperature:‑25℃ ~ +70℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Shock & vibration:Complies with DNV marine environmental requirement

Weight:1.38kg

Dimensions:230mm ×165mm ×120mm

Certification:DNV,ABS,LR,CE,marine type approval

Built‑in function

GPU/2/GS generator protection unit completes electrical measurement and multi‑fault protection for DEIF power‑management system. It detects generator electrical faults and outputs trip or alarm signal to avoid unit damage. Widely used for marine and industrial generator power‑station cabinet spare‑part replacement.

Product Brief

GPU/2/GS belongs to DEIF Multi‑Line2 series spare‑part family,panel‑mount generator protection unit. Product is end‑of‑life,hardware slot option configuration must be verified before ordering. Wiring and option board combination need inspection during commissioning. Widely applied for power‑equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.