Description

The DEIF GPU 2 GS is a versatile and compact single-channel generator protection relay designed to provide essential protection, control, and monitoring for small to medium-sized generator sets. Part of DEIF’s renowned GPU (Generator Protection Unit) series, this device is engineered to safeguard prime movers (such as diesel or gas engines) and generators against a comprehensive range of electrical faults and abnormal operating conditions. The core function of the DEIF GPU 2 GS is to continuously monitor key parameters including voltage, current, frequency, and power, and to initiate immediate shutdown commands or alarms upon detecting issues that could lead to equipment damage or unsafe operation. Its value lies in integrating multiple critical functions into a single, cost-effective unit, simplifying system design, reducing panel space, and enhancing the overall reliability of the generating asset.

Designed for ease of use, the DEIF GPU 2 GS features a clear graphical display and an intuitive user interface, allowing for straightforward configuration and real-time data visualization. It serves as the intelligent hub for a generator, offering not just protection but also essential control logic and detailed metering information for operational decision-making. The robustness of the DEIF GPU 2 GS makes it suitable for demanding environments, ensuring continuous performance in applications ranging from prime power to emergency standby. By preventing catastrophic failures through features like overcurrent, overload, and under/overfrequency protection, the DEIF GPU 2 GS is a critical investment in maximizing generator availability, extending equipment lifespan, and ensuring safety.

Technical Specifications

Main Features and Advantages

The DEIF GPU 2 GS is packed with features that deliver significant advantages for generator set applications. Its comprehensive protection suite is its foremost strength, with built-in functions like reverse power protection, which is crucial for preventing a generator from motoring and damaging the prime mover, and earth fault protection, which enhances safety by detecting insulation failures. The inclusion of both time-delayed and instantaneous protection elements (e.g., ANSI 51 and 50) allows for precise coordination with other protective devices in the electrical system, ensuring selective tripping and minimizing unnecessary downtime.

User-Friendly Operation and Flexibility: The DEIF GPU 2 GS is designed for simplicity. The graphical display provides clear readouts of all measured values, status information, and alarm messages. Configuration is straightforward via the front interface, allowing technicians to easily set parameters and adjust setpoints without needing specialized software. The device offers remarkable flexibility with five programmable relay outputs and four digital inputs, enabling it to be tailored for a wide array of control sequences and interlocking logic specific to the installation, effectively acting as a small PLC in addition to its protective role.

Integrated Control and Monitoring: Beyond pure protection, the DEIF GPU 2 GS provides integrated generator control functions, managing automatic start/stop sequences, cool-down periods, and load demand signals. This eliminates the need for separate timer relays and control modules, streamlining the overall system design. The extensive metering capabilities provide operators with all necessary data for monitoring performance and energy production, making the DEIF GPU 2 GS a central information point for the generator set.

Application Field

The DEIF GPU 2 GS finds its primary application in protecting and controlling standalone generator sets across a diverse range of industries. It is extensively used in emergency standby power systems for critical facilities such as hospitals, data centers, telecommunications infrastructure, and commercial buildings, where it ensures generators automatically start, accept load, and shut down safely in the event of a mains failure. In the industrial sector, the DEIF GPU 2 GS is deployed to protect generators used for prime power in mining operations, on construction sites, and in agricultural applications, as well as for peak shaving and grid support.

The maritime industry is another key area, with the DEIF GPU 2 GS serving as a vital protection unit for auxiliary generator sets on board vessels, from workboats to larger ships, ensuring reliable power for hotel loads and auxiliary systems. Furthermore, it is perfectly suited for rental power and temporary installations due to its compact size and ease of configuration. In essence, the DEIF GPU 2 GS is the ideal solution for any application involving a diesel or gas generator set up to approximately 2-3 MVA that requires reliable, all-in-one protection and control to ensure continuous and safe operation.

Related Products

DEIF GPU 3 GS: A three-channel generator protection relay offering advanced protection for larger, more complex generators, including differential protection.

DEIF AGC 150: A compact generator controller focused on automatic start/stop and load sharing, often used alongside or as an alternative for basic control.

DEIF PPM 100: A power protection module, providing basic voltage and frequency protection for smaller loads or generators.

DEIF MULTI-LINE: DEIF’s range of advanced multi-functional instruments for switchboards, which can complement the protection system.

DEIF ISM: Instrumentation and switchboard meters for displaying generator parameters.

DEIF Genset Controller: A broader product line for comprehensive genset management, which the GPU 2 GS is a part of.