ABB SYN5202A Voltage Regulator – Module Function and Performance Overview

SYN5202A is a key regulating unit in ABB synchronous generator excitation system,
Mainly responsible for maintaining the generator terminal voltage at the set level,
And provide fast and stable voltage control in situations such as load changes and power grid disturbances,
It is a very important module in the entire AVR link.

◆ 1. Accurate voltage control capability

SYN5202A is equipped with a high-precision analog/digital hybrid measurement circuit, which can monitor the generator voltage in real time,
And dynamic compensation is carried out through the excitation system to ensure stable and reliable output voltage.

◆ 2. Quick response regulatory mechanism

In the face of sudden load changes or system disturbances, it can quickly take regulatory actions,
Provide good dynamic support for the stable operation of the unit and improve its ability to resist disturbances.

◆ 3. Complete excitation protection logic

The module has protection functions such as over excitation, under excitation, and demagnetization, and can automatically detect abnormal states,
And timely intervene in protection to avoid damage to the unit and power grid equipment.

◆ 4. Enhanced adaptability to industrial environments

To meet the requirements of long-term operation of power plant units,
This regulator has good resistance to electromagnetic interference, temperature, and surge, and can maintain stability under harsh conditions.

◆ 5. Control interface and system integration friendly

SYN5202A can communicate well with ABB’s excitation system, monitoring system, and some upper control platforms,
It can provide functions such as remote setting, parameter adjustment, online monitoring, and fault recording.

◆ 6. Common application scenarios

AVR system for synchronous generators in power plants

Excitation regulation of large synchronous motors

Excitation system renovation/upgrade project

Voltage regulation and reactive power control link