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- Warehouse: Spot
- Warranty： 365 days
- Quality: Original module
- Condition： New
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- Contact person: LI MING
- Contact number: +86 18059884790
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- E-mail: plc66@qq.com
Basler DECS-250-LN1SN1N Digital Excitation Controller
Product Brief Description
Basler DECS-250-LN1SN1N is a high-performance digital excitation control system for synchronous generators and synchronous motors. It is an upgraded successor model of DECS-200 series. This specific suffix version defines hardware configuration, communication interface and power stage options. It supports multiple regulation modes, built-in generator protection, oscillography and event recording, widely used in grid-connected, island and parallel generator sets.
Features
- 5 regulation modes: AVR automatic voltage regulation, FCR field current regulation, FVR field voltage regulation, Var regulation, Power Factor regulation
- True RMS voltage & current measurement, regulation accuracy ±0.25%, support 50Hz / 60Hz
- PWM excitation power stage, max continuous 10A, peak 15A, adapt for PMG, auxiliary winding and DC-fed exciter
- Rich limit functions: overexcitation, underexcitation, stator current, V/Hz overfluxing, underfrequency limit
- Integrated protection: 27/59 over/undervoltage, 81O/U over/under frequency, 32R reverse power, 40Q loss of excitation, 25 sync-check, field fault protection
- Communication: Ethernet, RS485, Modbus; optional built-in PSS power system stabilizer for grid code compliance
- Oscillography, SOE event log, trend recording, bumpless transfer for auto/manual switching
- Support master/standby redundant excitation configuration, auto-tune PID stability parameters
Application Scenarios
- Utility power plant, industrial self-use synchronous generator excitation control
- Oil & gas, mining, chemical, marine power station genset
- Grid-connected generator, peak shaving and island parallel operation
- Retrofit and replacement for old DECS-200 excitation systems
- Synchronous motor excitation control and power factor compensation
FAQ
Q: What does DECS-250-LN1SN1N suffix LN1SN1N mean?
A: LN = standard configuration with LCD front panel; 1S = power stage option; N1 = communication and I/O option; final N = non-coated standard environment version.
Q: What is the difference between DECS-250 and DECS-200-1L?
A: DECS-250 is the newer generation, with higher sampling speed, built-in oscillography, optional PSS, richer protection logic and Ethernet communication; DECS-200 is the older classic model.
Q: Does it support redundant excitation?
A: Yes, master/backup dual DECS-250 can be configured with bumpless switchover when the main unit fails.
Q: What software is used for commissioning?
A: Basler PC software for parameter setup, waveform viewing and event log download.
Q: Is this controller available for spare replacement?
A: It is the mainstream production excitation controller. New original, surplus and tested refurbished units are supplied for power plant maintenance and retrofit projects.
