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Phone: +86 16626708626Description
The ABB SYN5202 is an advanced excitation system control module, specifically a critical component of ABB’s UNITROL® series designed for automatic voltage regulation (AVR) in synchronous generators. This module precisely manages generator terminal voltage and reactive power by controlling the field current in the rotor winding, ensuring stable, efficient power delivery whether operating connected to a large power grid or an isolated load.
Engineered to deliver robust and rapid voltage control, the ABB SYN5202 utilizes sophisticated control algorithms like PID regulators and power system stabilizers for dampening power oscillations and reactive power control. It supports redundancy in operation, allowing dual modules to be installed for fault tolerance and continuous generator operation through automatic transfer to backup hardware. This makes it invaluable for power utilities and industrial plants focused on uninterrupted power supply and grid stability.
The SYN5202 interfaces internally using ABB’s proprietary buses and may optionally support fieldbus communications for integration with overall plant control systems. It is built to operate reliably in typical control room temperatures (0 to +60°C) and includes microprocessor-based hardware with dedicated signal conditioning. The module serves as both a precision controller and an intelligent diagnostic tool, providing real-time monitoring, self-checks, alarm reporting, and communication of operational data, helping operators maintain system performance and predict maintenance needs.
Key Technical Specifications:
| Parameter | Value |
|---|---|
| Model | ABB SYN5202 |
| Brand | ABB |
| Product Type | Excitation System Control Board / AVR Module |
| Compatible System | ABB UNITROL® Series Excitation Systems |
| Primary Function | Automatic Voltage Regulation (AVR), Field Current Control |
| Input Signals | Generator Terminal Voltage (VT), Generator Current (CT), Field Current |
| Output Signals | Control Signals for Thyristor Firing |
| Communication Interface | Proprietary internal bus, Optional fieldbus cards |
| Power Supply | Typically 24 V DC from UNITROL® cabinet |
| Operating Temperature | 0°C to +60°C |
| Hardware Features | Microprocessor-based with signal conditioning circuits |
| Certifications | Compliance with relevant international power system standards |
- SYN5202
- SYN5202
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Installation requires mount-in control cabinets in power generation units, with connections to generator sensing transformers and thyristor controls. The unit is maintained via remote monitoring software and local diagnostic displays. It is a spare-critical component, as failure can lead to loss of voltage control and generator downtime.
