Key Technical Specifications

• Product Model: AGC/GS/3
• Manufacturer: DEIF (Danish Energy Control)
• Rated Voltage: 100 to 690 VAC
• Frequency: 50 / 60 Hz
• Power Supply: 24 VDC (Typical)
• Control Type: Automatic Generation Control (AGC)
• Application: Synchronization and load sharing
• Form Factor: Standard DIN-rail or panel mount
• Communication: Analog outputs, Relay outputs, Serial link
• Protection: Over/under voltage and frequency protection

 

Product Introduction

The DEIF AGC/GS/3 is a dedicated automatic generator set controller designed for synchronizing multiple diesel generators and managing load sharing. It serves as the core processing unit in decentralized paralleling systems.This module handles complex synchronization logic, ensuring safe and stable grid connection. Field engineers often rely on the AGC/GS/3 for its reliable analog interfacing and robust relay outputs in harsh industrial environments.

Installation & Configuration Guide

Preparation (10 min)

• Verify 24 VDC control power availability.
• Gather the DEIF configuration tool (USW-3 or similar).
• Check CT/VT ratios against generator specs.

Removal (5–10 min)

• Disconnect all field wiring.
• Label wires for reinstallation.
• Remove DIN-rail clips or mounting screws.
• Slide the module out.

Installation (10 min)

• Mount the DEIF AGC/GS/3 securely.
• Reconnect wiring per the schematic.
• Verify CT polarity (critical for load sharing).
• Connect serial communication links.

Power-On & Test (10 min)

• Apply 24 VDC control power.
• Check for fault LEDs.
• Verify voltage and frequency readings.
• Test manual sync function.

 

Troubleshooting Quick Reference

• No Display: Check 24 VDC supply and internal fuse.
• Sync Fail: Verify CT polarity and phase sequence.
• Load Sharing Error: Check analog output wiring to governors.
• Comm Loss: Inspect serial cable shielding and termination.
• False Alarm: Measure actual voltage against module reading.

Dimensions, Mounting & Wiring Notes

• Mounting: DIN-rail or panel screw mount
• Wiring: Use shielded twisted pair for serial comms.
• CT Wiring: Ensure proper polarity (P1/P2) for load sharing.
• Grounding: Connect chassis ground to prevent EMI issues.

 

FAQ

Is the AGC/GS/3 still supported by DEIF?
It is a legacy product. Support is limited to spare parts and basic documentation.I need a replacement. What is the modern equivalent?
The DEIF AGC 150 or AGC-4 MK II are the current replacements.Can I mix this with newer DEIF controllers?
Yes, via serial links, but configuration requires careful matching.Do you have the wiring diagram for this?
We can provide standard wiring templates. Contact us for the specific AGC/GS/3 manual.I have a sync failure. What do I check first?
Check the CT polarity and phase rotation. This causes 90% of sync issues.What is the lead time for this module?
Stock varies. Contact us for real-time availability on the DEIF AGC/GS/3.Does it support CANbus?
The AGC/GS/3 typically uses analog and serial links. CANbus is found in newer AGC 150 models.