Description
The Basler Electric DECS-200-2L is a microprocessor-based Digital Excitation Control System engineered to regulate the output voltage, reactive power (vars), or power factor of synchronous generators. By modulating the DC excitation current applied to the exciter field, this Automatic Voltage Regulator (AVR) protects and controls synchronous machines across a wide range of capacities.
On a recent prime-power generator commissioning project, we integrated this system to manage a non-linear industrial load profile. The unit utilizes a pulse-width modulated (PWM) power stage to maintain voltage stability despite severe harmonic distortions on the bus. Well, technically it accommodates continuous exciter field outputs at 32 V DC, 63 V DC, or 125 V DC up to 15 A DC, but only if your operating power source supplies the corresponding input thresholds required for baseline voltage buildup (verify your power input levels with the OEM instruction manual before starting the generator).
Inventory Condition and Global Procurement Options
- Product Condition: New Original (Factory Sealed)
- Warranty: 12-month technical replacement warranty
- Availability: In stock; ready to ship within 24 to 48 hours from our logistics hub
- Pricing Notice: The price shown acts as a baseline market reference. Actual final transaction costs are dependent on international component supply levels, regional safety certifications, and volume tiers. Contact our global trade desk to obtain a formal, firm quotation.
Industrial excitation control systems must be shielded from environmental and kinetic hazards during transit. The DECS-200-2L features sensitive integrated circuits and an front panel LCD assembly. We wrap each system module in thick anti-static barrier material and house it within heavy-duty export boxes filled with precision foam inserts to prevent shipping fatigue across global maritime or air channels.
Functional Identification & Option Suffixes
The specific 2L configuration code designates a particular subset of hardware options pre-assembled by Basler Electric:
- DECS-200: Base platform containing 4 control modes (AVR, Field Current Regulation/Manual, Var, and Power Factor tracking).
- Internal & External Auto-Tracking: Features tracking pathways that force the non-active control modes to mirror the active setpoint, enabling a bumpless transfer during an emergency override or when shifting to a redundant backup unit.
- Power Supply Configuration: Configured to accept a nominal 24/48 V DC control power input to keep the internal processing logic live independently of the generator’s terminal voltage status.
Technical Specifications
| Parameter | Value |
| Manufacturer | Basler Electric (Highland, IL, USA) |
| Part/Style Number | DECS-200-2L (9360100990 H) |
| Voltage Regulation Accuracy | ±0.25% across full load range at rated power factor |
| Continuous Output Rating | 15 A DC at 32, 63, or 125 V DC |
| Control Power Input | 24 / 48 V DC nominal range |
| Generator Current Sensing | Dual-channel, 1 A or 5 A secondary inputs |
| Protocols Supported | Modbus RTU over RS-485 link |
| Approvals | UL Recognized, CSA Certified, CE Compliant |
The front panel interface houses a backlit LCD display accompanied by discrete control keys. In our field experience, the dedicated excitation limiters—specifically the on-line and off-line maximum excitation limiters (MEL/OEL)—are highly reliable. Having the system automatically step down the field current before an over-excitation trip occurs is a major benefit that prevents total plant blackouts.
Cross-Border Shipping and Customs Regulations
Exporting synchronous machine regulation equipment requires strict compliance processing. Because the DECS-200-2L contains programmable logic controllers capable of grid-level power regulation and infrastructure-level generator controls, customs clearance frameworks apply close inspections. Our global logistics team compiles accurate shipping manifests embedded with the precise Harmonized System (HS) Tariff Code to facilitate smooth entries at international ports.
Are you executing an urgent generator set repair or dealing with an offshore utility asset breakdown? Selecting expedited air express via carriers like DHL, FedEx, or UPS ensures the voltage regulator moves with high priority, often clearing global customs terminals within 48 hours of arrival. We accommodate diverse purchasing workflows by executing logistics under EXW, FCA, and DAP Incoterms to match your asset-management framework.
Frequently Asked Questions
Can the DECS-200-2L execute cross-current compensation for parallel generator operations?
Yes. The unit includes native reactive droop and reactive differential (cross-current) compensation capabilities. It accepts either 1 A or 5 A current transformer inputs specifically allocated for parallel loop monitoring, allowing you to balance reactive loads across multiple synchronous machines.
What auxiliary modules are required if I want to set up a dual, fully redundant AVR configuration?
To configure a dual-redundant tracking setup using two DECS-200 units, you will need the matching unit-to-unit interconnection cable (Basler P/N 9310300032) and the external DECS Freewheeling Diode Module (Basler P/N 9293600101). This diode module isolates the outputs, ensuring that the standby controller can assume control of the exciter field instantly if the primary unit drops out.
