BASLER DECS-100 Digital Excitation Control System

Description

BASLER DECS-100 Digital Excitation Control System

Product Dimensions：

The Basler Electric DECS-100 (Digital Excitation Control System) is a high-performance, microprocessor-based electronic regulator. It is designed to control the output voltage of a synchronous generator by precisely regulating the current supplied to the generator’s exciter field.

Product Detailed Description

The DECS-100 is a versatile, compact digital excitation system that can function as a Voltage Regulator (AVR), a Manual Current Regulator (FCR), a Power Factor (PF) Controller, or a Var Controller. It features an advanced microprocessor that utilizes pulse-width-modulated (PWM) power electronics to deliver up to 7 Adc of continuous excitation current. It is renowned for its reliability, offering comprehensive protection features for both the regulator and the generator.

Technical Parameters

Product Advantages

• 4-in-1 Control Modes: Seamlessly switchable between Automatic Voltage Regulation (AVR), Field Current Regulation (FCR), Power Factor (PF), and Reactive Power (Var) control.
• Flexible Power Input: Can accept power from a Permanent Magnet Generator (PMG), internal auxiliary windings, or directly from the generator terminals (shunt excited).
• Comprehensive Internal Protections: Includes Overexcitation (OEL) and Underexcitation (UEL) Limiting, Generator Overvoltage/Undervoltage protection, and loss of sensing voltage detection.
• BESTCOMS™ PC Software: Simplifies setup, monitoring, and real-time data logging via a user-friendly Windows-based programming interface.
• Underfrequency Roll-Off (V/Hz): Protects the generator against overheating during low-speed operations by shedding voltage proportionally to frequency drops.

Important Considerations & Precautions

• Minimum Field Resistance: Always verify that the generator’s exciter field resistance meets the minimum requirements (9 \Omega or 18 \Omega depending on configuration). Operating below this threshold will damage the output power stage of the DECS-100.
• Grounding & Shielding: To prevent electromagnetic interference (EMI) from corrupting sensor inputs, all CT (Current Transformer) and PT (Potential Transformer) secondary wires must be shielded, and shields must be grounded at the regulator end only.
• Configuration Verification: Before flashing firmware or applying line voltage to the generator, use the BESTCOMS software to cross-verify that the sensing configurations (Single vs. Three-Phase) match the actual physical wiring.
• Heat Dissipation: Mount the unit vertically on a flat, unpainted metal surface to ensure optimal heat dissipation through its integrated heatsink chassis.

Product Applications

The DECS-100 is widely implemented in global power generation networks:

• Industrial Cogeneration: Managing load-sharing and power factor correction in grid-tied corporate power plants.
• Marine Power Systems: Regulating onboard diesel generators on ships and offshore platforms where stable voltage control is critical for operations.
• Emergency Standby Power: Ensuring ultra-fast voltage recovery time in backup power systems for hospitals, data centers, and critical infrastructure.
• Prime Power Utilities: Deployed on small to mid-sized hydro, gas, or steam turbine-driven synchronous generators.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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