Basler Electric DECS-250-LN2SN1N Digital Excitation Control System

Basler Electric    DECS-250-LN2SN1N

       The DECS-250 is a complete digital excitation control system. Total control in a compact package provides precise voltage, var and Power Factor regulation, and exceptional system response, plus generator protection. An optional power system stabilizer helps meet stringent grid code compliance requirements. The DECS-250 offers extreme flexibility and total functionality in a cost effective, easy-to-use package.

       The DECS-250-LN2SN1N is a member of the Basler Electric DECS-250 series, offering a complete digital excitation control system in a compact, cost-effective package. This model delivers precise regulation of voltage, var, and power factor, coupled with exceptional system response and integrated generator protection. Engineered for demanding power generation environments, it supports an optional power system stabilizer to meet stringent grid code compliance requirements. The DECS-250-LN2SN1N combines extreme flexibility and total functionality, making it an easy-to-use solution for synchronous generator excitation control.

Key Features of the DECS-250-LN2SN1N

✜Precise excitation control for synchronous generator or synchronous motor applications

✜True RMS sensing, single-phase or three-phase voltage and current

✜Automatic Voltage Regulation / Field Current Regulation / Field Voltage Regulation, 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

✜Auto tuning feature with two PID stability groups

✜Optional integrated power system stabilizer (PSS), IEEE Std. 421.5 type PSS2A/2B/2C

✜Conformal coating is applied to certain internal circuitry for additional protection and reliability

✜Trending, Oscillography, and Sequence of Events Recording

✜Sixteen Programmable Contact Inputs

✜Twelve Programmable Contact Outputs

✜I/O Expansion Module compatibility

- AEM-2020 Analog Expansion Module

- CEM-2020 Contact Expansion Module

FAQ

Q1: What is Basler Electric's core technology focus?

A1: Digital excitation control and generator protection. Basler specializes in DSP-based automatic voltage regulators (AVRs) and protection relays for synchronous generators, with proprietary PID tuning algorithms and power stage designs up to 20A continuous / 30A forcing.

Q2: What communication protocols do Basler products support?

A2: Modbus RTU (RS-485), Modbus TCP (Ethernet), CAN bus (for ECU and expansion modules), and optional IEC 61850 (DECS-200 series). USB and RS-232 are also available for local configuration.

Q3: What harsh environmental conditions can Basler products withstand?

A3: Operating temperature from −40°C to +70°C (derated current above 55°C), 15G shock, 5G vibration (18–2000 Hz), and salt fog per MIL-STD 810E.

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