DECS-250-CP2CA1P DECS-250 digital excitation control system

Basler Electric’s DECS-250 digital excitation control system offers high performance, high flexibility, and extreme reliability for brushless excited AC
synchronous generators. The DECS-250 offers a 15 amp pulse width modulated power stage providing high field forcing. Multiple communication options and an
optional integrated power system stabilizer make the DECS-250 a complete system solution in a reliable and cost effective package.
By utilizing the very intuitive BESTCOMSPlus® PC software, the setup, configuration, operation and control can be performed quickly and accurately.
The BESTCOMSPlus PC software utilizes the powerful and flexible BESTLogicPlus programmable logic program. This integrates PLC capabilities allowing users to
customize their control scheme to meet virtually any application.

DECS-200-2L

• True RMS sensing, Single or Three Phase voltage and current
• Full Generator Metering Capabilities
• AVR / FCR / FVR, Power Factor and var modes of operation
• Integrated Generator Protection ( 27/59, 81O/U, 32R, 40Q), EDM, 59F, 51F, Loss of PMG, Field Short Circuit, and 25 Sync Check
• Configurable Protection
• Overexcitation Limiting (with temperature compensation)
• Underexcitation Limiting
• Stator Current Limiting (with temperature compensation)
• Var Limiting
• Underfrequency Limiting or V/Hz Limiting

The DECS-250 is a microprocessor based excitation control system. The DECS-250 is designed to control
and protect the generator and excitation system. Additionally, it provides extensive metering capabilities,
communication capabilities, as well as fully programmable I/O. The DECS-250 provides excitation to the
generator via a pulse width modulated power stage capable of 32Vdc, 63Vdc, or 125Vdc nominal voltages with a
continuous output rating of 15Adc.