DEIF PPU3 Ship Controller

Product Description

DEIF PPU-3 (Paralleling and Protection Unit) is a microprocessor-based genset paralleling & protection controller developed by DEIF Denmark. Compact and all-in-one, it is easy to configure and operate, ideal for PLC-based power management systemsDEIF …. It contains galvanically isolated 3-phase measuring circuits, integrating generator synchronization, paralleling, load sharing and comprehensive electrical protection functions. An optional engine interface card can extend engine start/stop and safety protection; this card is equipped with independent power supply and microprocessor. In case of main processor failure, it switches to backup mode automatically to maintain continuous engine supervision. It supports M-Logic programmable logic, and custom functions via USW-3 software. The LCD display shows measurements, event logs and alarms locally. Remote AOP (Additional Operation Panel) is supported with dimming function for wheelhouse application. Approved by major classification societies, PPU-3 serves as a reliable control & protection solution for marine and offshore generator setsDEIF ….

Specifications

1. Measurement: Galvanically isolated 3-phase measurement. Voltage scaling 100V~25000V (with PT). Measures voltage, current, frequency, power, power factor, etc.
2. Regulation modes: 4 modes: Fixed frequency, Fixed power (base load), Frequency droop, Load sharingDEIF
3. Protection: Over/under frequency, over/under voltage, overcurrent, reverse power, loss of excitation and other generator & busbar protection with multi-stage thresholds (ANSI codes)
4. Communication: Serial port; optional H2 Modbus for PLC, SCADA and AMS integration
5. Display: Separate LCD display with standard 3m cable. Up to 2 remote panels, max 200m distance; display dimming available
6. Programming: Built-in M-Logic micro PLC. USW-3 PC software for parameter setting, logic programming and event log reading
7. Mounting: Rear mount / DIN rail mount
8. Approvals: Major marine classification societies (DNV, LR etc.)
9. Options: M4 engine control & protection card, analog input card, remote operation panel and more

Applications

• Standalone & parallel operation of marine main / emergency generator sets
• Offshore power plants: multi diesel generator synchronization, load sharing and electrical protection
• PLC-based power management systems as paralleling & protection unit
• Shore connection and bus tie breaker monitoring & protection (with options)
• Offshore engineering genset monitoring, local & remote operation and alarming
• Isolated power plants and backup generator synchronization & protection

Related Series Models

1. PPU-3 (Base marine paralleling & protection unit, variants: 01 / 05 / 06 etc.)
2. PPU300 Standard: New generation customizable controller for diesel gensets, shaft generators, shore connections and bus tie breakers. Colour display, rear mounting, Ethernet ring redundant power managementDEIF
3. PPU300 PLC variant: Equipped with CODESYS PLC environment for advanced power station logic

Note: PPU series is DEIF’s paralleling & protection product line. PPU‑3 is the classic legacy model, while PPU300 is its upgraded successor series.