Basler DECS series AVR automatic voltage regulator Basler Electric Generator

The Basler DECS series AVR automatic voltage regulators are high-performance digital excitation control systems designed specifically for synchronous generators. Here is an introduction to them:

Features

Precise Voltage Regulation: They adopt digital control technology, which can accurately detect small changes in the generator 's output voltage and quickly and accurately adjust the excitation current to stabilize the output voltage at a set value. The voltage regulation accuracy can reach a high level, such as ±0.5% for DECS - 200-2L.

Multiple Protection Functions: They integrate various protection functions, including over - voltage protection, under - voltage protection, over - current protection, thermal overload protection, etc., to prevent the generator from being damaged under abnormal working conditions and ensure the safe operation of the generator and the power system.

Flexible Configuration: They can be flexibly configured according to different generator and system requirements to adapt to various working conditions and application scenarios.

Good Dynamic Performance: During dynamic processes such as load changes and grid faults of large - scale generators, they can quickly respond and adjust the excitation to restore the output voltage and reactive power of the generator to a stable state in a short time, with a short voltage regulation response time, usually within milliseconds.

Easy to Operate and Monitor: They are equipped with a user - friendly interface, which is easy to operate. In addition, through communication interfaces such as RS - 485 and Modbus, they can realize remote monitoring and adjustment, facilitating users to monitor and manage the generator 's operating status in real time.

Main Models and Their Parameters

DECS-100 Series:

DECS-100-B11: Microprocessor-based, suitable for generators up to 5MW. It can output 63Vdc and 7.0Adc continuous voltage and current, can detect a variety of single-phase or three-phase voltages, and has VAR/PF control, voltage matching function and 1A CT secondary side interface.

DECS-100-B15: Designed for Basler generators, it provides precise and stable voltage control, has a user-friendly interface, has overvoltage and undervoltage protection functions, output voltage accuracy of ±0.5%, and supports remote monitoring and control.

DECS-200 Series:

DECS-200-2L: Digital automatic voltage regulator for synchronous generator excitation control. It adopts digital control technology, integrates multiple protection functions, has AC/DC input voltage, millisecond response time, operating temperature from -25℃ to +70℃, IP20 protection level, and supports RS485, Modbus and other communication interfaces.

DECS-200-2C: It can adapt to 32Vdc, 63Vdc or 125Vdc applications, with a maximum current of 15Adc, integrated pulse width modulation power stage, with the function of limiting, controlling and protecting the generator, providing external/internal automatic tracking and 120/125Vac/dc power supply.

DECS-150: A new generation of digital voltage regulator with automatic tuning function, optional PSS, built-in programmable logic, and advanced communication capabilities. IP54 waterproof and dustproof packaging structure, suitable for AC synchronous generators, can operate reliably in harsh environments.

Application Areas

Power Systems: They are used in power plants, substations, power grids, etc., to ensure the stable operation of generators and the quality of power supply.

Industrial Applications: They are widely used in modern industrial fields such as metallurgical machinery, petroleum and natural gas, petrochemicals, paper - making and printing, textile and dyeing, electronic manufacturing, automotive manufacturing, tobacco machinery, plastics and rubber, and power and water treatment to ensure the efficient operation of manufacturing and processing plants.

Other Applications: They are also applicable to ship - board power generation, emergency power supplies, etc., providing reliable voltage regulation and control for various electrical equipment.