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Overview
The Basler DECS‑200‑1L is a precision digital excitation control system designed for synchronous generators and industrial motors. It ensures stable voltage output, accurate reactive power management, and optimized power factor while offering integrated generator protection and flexible communication interfaces. Its compact and configurable design makes it suitable for a wide range of generator sizes and industrial environments.
Technical Specifications
| Specification | Details |
|---|---|
| Voltage Regulation Accuracy | ±0.25% |
| Excitation Output | 32 VDC, 63 VDC, or 125 VDC up to 15 A DC |
| Control Modes | Automatic Voltage Regulation (AVR), Field Current Regulation, Field Voltage Regulation |
| Reactive Power Control | VAR mode, Power Factor mode |
| Sensing | True RMS voltage and current, single-phase or three-phase input |
| Protection Functions | Undervoltage, Overvoltage, Underfrequency, Overfrequency, Reverse Power, Max/Min Excitation Limits |
| Stability Settings | 20 standard profiles + 1 user-configurable option |
| Startup Features | Soft-start ramp, underfrequency compensation, V/Hz ratio limiter |
| Paralleling Compensation | Supports multi-generator operation with load sharing |
| Communication Interfaces | RS‑232 (ASCII), RS‑485 (Modbus) |
| Remote Setpoint | Contact inputs, ±10 VDC, or 4–20 mA signals |
| Programming | Configurable via front panel HMI or Windows® PC software |
| Power Supply | 24/48 VDC, 30 W |
| Power Input | 11/20 A, 1–3 phase, 56–277 VAC, 50–400 Hz |
| Dimensions & Weight | 13.01 lbs |
Key Features
- High-precision AVR for stable generator voltage and superior power quality
- Multiple operating modes: AVR, VAR, PF, manual field current
- Built-in generator protection eliminates the need for external relays
- Soft-start, autotracking, and V/Hz compensation for reliable startup
- Remote monitoring and control through analog or digital communication
- Compact and flexible design for easy integration into control panels
Typical Applications
- Power plants including hydro, thermal, and renewable energy facilities
- Industrial generator sets for factories, refineries, and critical infrastructure
- Grid-connected synchronous generators requiring precise voltage, VAR, and power factor regulation
- Multi-generator systems needing load sharing and paralleling compensation
FAQ
Q: Can the DECS‑200‑1L work with both single-phase and three-phase generators?
A: Yes, it supports true RMS sensing for both single-phase and three-phase configurations.
Q: How is remote excitation control achieved?
A: Remote control is available via contact inputs, ±10 VDC, 4–20 mA analog signals, or Modbus communication.
Q: What is the difference between DECS‑200‑1L and DECS‑250 series?
A: DECS‑250 provides higher excitation capacity and extended communication features, while DECS‑200‑1L focuses on compact design with essential AVR and protection functions.
