Description
The Basler DECS-250-CN1CN1N is a microprocessor-based digital excitation control system configured for synchronous generators and motors. Utilizing a high-performance 15-amp pulse-width-modulated (PWM) power stage, this specific style configuration provides precise automatic voltage regulation (AVR), system metering, and integrated generator protection.
Technical Specifications (Style Breakdown: -CN1CN1N)
| Parameter | Value |
| Manufacturer | Basler Electric |
| Product Series | DECS-250 Digital Excitation Control System |
| Control Power Supply (C) | 120 Vac / 125 Vdc nominal |
| Auto-Tracking (N) | Internal auto-tracking only |
| Synchronizer (1) | Without internal auto-synchronizer (None / Standard) |
| Terminal Type (C) | Compression-type terminals (for CT sensing, power input, and power output) |
| 1st Communication Port (N) | 100Base-T Ethernet |
| 2nd Communication Port (1) | Modbus TCP protocol / Standard network configuration |
| Continuous Output Current | 15 Adc up to 70°C; 20 Adc up to 55°C |
| Field Forcing Capacity | 30 Adc for 10 seconds |
| Operating Temperature | -40 to +70°C |
| Enclosure Protection | IP20 (internal cubicle mount; requires IP54 or higher cabinet for harsh environments) |
Supply Terms & Commercial Details
- Availability: Stock levels change dynamically; verify current inventory status for immediate dispatch or project deployment.
- Lead Time: Dependent on factory production schedules if not stocked locally.
- Warranty: 12-month standard vendor or supplier replacement warranty.
- Condition: Factory Sealed / New Surplus (confirm exact packaging status upon inquiry).
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Engineering & Integration Guidance
When integrating the DECS-250-CN1CN1N into a generator control panel, configure and tune parameters using Basler’s BESTCOMSPlus software via the front USB or rear Ethernet port.
- Terminal Connections: This specific style uses compression-type terminals (-C) for high-power connections. Ensure proper torque specifications are applied to power output and current transformer (CT) wiring to prevent high-resistance joints under full excitation load.
- Protection Configuration: Leverage the internal digital protection functions (such as elements 27/59, 40Q, 32R, and 59F) to align with your plant’s electrical protection coordination study.
- Verification: Always cross-reference control power inputs (120 Vac / 125 Vdc) and field resistance parameters against the official OEM instruction manual before initial excitation system energization.
Frequently Asked Questions
What does the “-CN1CN1N” suffix designate in the part number?
The string dictates the hardware options chosen at factory ordering: C specifies the 120 Vac / 125 Vdc power supply range, N1 denotes internal auto-tracking with no auto-synchronizer, C specifies compression power terminals, and N1N defines the standard Ethernet communication setup.
Can this controller handle parallel generator operation?
Yes. The DECS-250 supports reactive power sharing via droop compensation or cross-current compensation over its communication links and analog interfaces.
Is software required to configure the unit?
Yes, initial setup, PID tuning via the auto-tuner function, and logic configuration require Basler’s proprietary BESTCOMSPlus PC software.
