DECS-150 BASLER Digital Excitation Control System new brand

• Brand
  BASLER
• Model
  DECS-150
• Product Name
  Digital Excitation Control System
• Place of Origin
  United States
• Customs HS Code
  85371011
• Power Supply
  18–240V AC / DC
• Dimensions
  165mm × 124mm × 42mm
• Weight
  0.95 kg
• Operating Temperature
  -40°C ~ +70°C
• Storage Temperature
  -40°C ~ +85°C
• Warranty
  12 month
• Product Status
  new

DECS-150 Basler Digital Excitation Control System Technical Specifications

Regulation modes: AVR (Automatic Voltage Regulation), FCR (Field Current Regulation), Var regulation, Power Factor regulation

Voltage regulation accuracy: 0.25%

RMS voltage measurement, capable of operating with voltage waveform distortion up to 40% THD

Excitation power stage: PWM type

Operating power input frequency: 50 Hz to 500 Hz

63 Vdc nominal excitation variant operating supply: 100~139 Vac or 125 Vdc

125 Vdc nominal excitation variant, single-phase operating supply: 190~277 Vac or 250 Vdc

125 Vdc nominal excitation variant, three-phase operating supply: 190~260 Vac or 250 Vdc

Continuous field output current: 7 Adc at 70°C ambient temperature; 10 Adc at 55°C ambient temperature

10-second field forcing current: 11 Adc at 70°C ambient temperature; 14 Adc at 55°C ambient temperature

Minimum field resistance, 63 Vdc model: 9 Ω

Minimum field resistance, 125 Vdc model: 18 Ω

Control power supply: 19.2 ~ 26.4 Vdc, 24 Vdc nominal

Voltage sensing input: 1-phase / 3-phase 3-wire; selectable ratings: 100 / 120 / 200 / 240 / 400 / 480 / 600 Vac

Current sensing input: 1 Aac or 5 Aac CT input, cross-current compensation supported for generator paralleling

Communication ports: USB, CAN (optional), Ethernet RJ45, Modbus TCP (optional)

Configuration software: BESTCOMSPlus®

Standard features: Auto tuning, network load sharing, sequence of event recording, data logging

Optional feature: Power System Stabilizer (PSS)

Built-in protection functions: Overexcitation limit, underexcitation limit, stator current limit, generator fault protection

Operating ambient temperature: 0 ~ 55°C for 10 Adc continuous output; 0 ~ 70°C for 7 Adc continuous output

Certifications: UL certified, VDE-AR-N 4110 compliant

Installation type: Panel mount

DECS-150 Basler Typical Applications

Brushless synchronous AC generators, including diesel generator sets, gas generator sets and turbine-driven generators

Excitation control for brushless synchronous motors

Standby power and prime power generation systems

Parallel operation of multiple generators with reactive power sharing via cross-current compensation and droop control

Grid-connected generator systems; optional PSS supports compliance with grid requirements

Marine generator sets and seamless power transfer systems between on-board and shore power

Industrial backup power for manufacturing plants, data centers and other critical infrastructure

Mobile rental generator units and containerized power stations

Generators supplying heavy non-linear loads such as rectifiers and VFDs under high THD conditions

Small and medium-scale independent power plants

Excitation systems powered by PMG, shunt excitation or auxiliary winding supply

FAQ: Basler DECS-150 Digital Excitation Control System

Q: What is Basler DECS-150?

A: Basler DECS-150 is a field-mounted digital excitation controller, designed for synchronous generators and alternators to regulate output voltage and reactive power.

Q: What are the main functions of DECS-150?

A: It offers voltage regulation, var/power factor control, overexcitation protection, underexcitation limiting, soft start, and built-in generator monitoring functions.

Q: What generator types does Basler DECS-150 work with?

A: It is suitable for brushless synchronous generators, used in diesel generator sets, hydro generators and backup power generation systems.

Q: What communication interfaces does DECS-150 support?

A: It supports Modbus RTU, Modbus TCP for remote monitoring, parameter adjustment and data connection with SCADA and HMI systems.

Q: What software do I use to program and tune the DECS-150?

A: Basler PC Software is used for setup, gain tuning, protection configuration, fault viewing and firmware upgrade of the DECS-150.

Q: What is the operating temperature range for DECS-150?

A: Standard operating temperature: -40°C to +70°C, suitable for harsh outdoor and generator cabinet environments.

Q: Can DECS-150 work in parallel with other generators?

A: Yes, it supports paralleling operation, reactive power sharing and cross-current compensation for multi-generator systems.

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