Product Short Description
Product Name: Basler DECS-200-1L Digital Excitation Control System (AVR)
Product Overview: The Basler DECS-200-1L is a microprocessor-based digital excitation control system that regulates synchronous generator field excitation to maintain stable generator voltage and reactive power. It uses true RMS sensing and high-speed PWM control, suitable for both standalone and parallel generator applications. The “1L” style denotes internal autotracking/transfer and 24/48 VDC control power supply.
Description
Technical Specifications:
- Control Technology: Microprocessor-based with PWM power stage
- Voltage Regulation Accuracy: ±0.25% (no-load to full-load)
- Sensing: True RMS, single-phase or three-phase
- Field Output Voltage: 32 VDC / 63 VDC / 125 VDC (selectable)
- Continuous Field Output Current: 15 A DC
- Excitation Power Input: 56–277 VAC, single or three phase
- Control Modes: Automatic Voltage Regulation (AVR), Manual (Field Current), VAR / Power Factor control
- Remote Setpoint Inputs: Contact closure, ±10 VDC, 4–20 mA
- Communications: RS-232 (PC interface), RS-485 (Modbus)
- Protective Functions: Overvoltage, Over-excitation, Minimum excitation limiter, Field and system alarms
- Control Power: 24/48 VDC, 30 W
- Mounting: Panel or projection mounting (vertical orientation recommended)
- Operating Temperature: –40 °C to +60 °C
- Dimensions (H × W × D): 304 × 205 × 171 mm
- Weight: 6.3 kg
Key Features: High-precision AVR; multiple operating modes (AVR, VAR, PF, Manual Field Current); built-in generator protection eliminates external relays; soft-start, autotracking, and V/Hz compensation; remote monitoring via analog or Modbus communication; configurable via front-panel HMI or PC software.
Application Scenarios: Hydro, thermal, and renewable power plants; industrial generator sets for factories and refineries; grid-connected synchronous generators; multi-generator systems requiring load sharing and paralleling compensation.
Installation & Usage Notes: Install in panel with vertical orientation recommended. Provide appropriate operating power input (56–277 VAC) for desired field output. For dual control power sources, an isolation transformer for AC input is required. Configure stability via predefined profiles or user-set parameters.
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