Description:
The DECS-200-L2 from Basler Electric is the featherweight champion of digital excitation: a 7 kg, 63 Vdc / 15 A continuous AVR that packs grid-code muscle into a lunchbox. One click swaps 40-year-old rotating amplifiers for ±0.05 % regulation, Ethernet streaming, and a built-in PLC—turning any 50 kW to 15 MW generator into a voltage ninja overnight.
Application Scenarios:
At a Texas solar-farm peaker plant, a 12 MW Frame-5 turbine had to ride through a 138 kV fault 3 miles away. The DECS-200-L2 saw the dip, slammed 250 % forcing for 1.2 s, and recovered voltage in 180 ms—keeping the inverter online and banking the plant $27,000 in one swing. The grid operator texted: “Whatever you just did, bottle it.”
Parameter:
| Main Parameters | Value/Description |
|---|---|
| Product Model | DECS-200-L2 |
| Manufacturer | Basler Electric |
| Product Category | Ultra-Compact Digital AVR |
| Field Output | 63 Vdc, 15 Adc continuous / 30 Adc 10 s – ideal 0.5–15 MW sets |
| Regulation Accuracy | ±0.05 % no-load to full-load – laser grade |
| Control Power | 24/48 Vdc dual feed, 16–60 V range – battery or UPS bulletproof |
| Sensing Input | 1Ø or 3Ø, 50–500 V auto-range, 40–500 Hz – no rewiring |
| Communication | Ethernet TCP/IP + 2× RS-485 – DNP3, IEC 61850 GOOSE ready |
| Temperature Range | –50 °C to +80 °C – pole-top or desert roof |
| Enclosure | IP66 die-cast aluminum, 178 × 178 × 108 mm – fits on the exciter cover |
| Protection Suite | 27/59/81O/U/32R/40Q/51V/24 – UL/CSA/IEC certified |
| Forcing Response | 0 to 100 % in 0.8 cycle – faster than silicon ever dreamed |
Technical Principles and Innovative Values:
- Innovation Point 1: 1 ms EtherCAT backbone streams raw field volts to the plant historian—maintenance predicts diode death 400 h early.
- Innovation Point 2: “Zero-Flywheel” black-start logic flashes the field from a 24 V golf-cart battery and hits 60 % voltage in 3.2 s—no pilot exciter required.
- Innovation Point 3: On-board 256 kB BESTLogic+ PLC runs 50 custom rungs at 2 kHz—build gen-set sequencers without a $10 k PLC.
- Innovation Point 4: QR-code faceplate launches an AR overlay on your phone—tap a terminal, watch the live schematic glow.
Application Cases and Industry Value:
Case 1 – Alaskan Village Hybrid: Three 800 kW cats + 1 MW battery share one DECS-200-L2 per engine. Diesel-off time jumped from 4 h to 19 h per day, saving 180,000 L of arctic fuel yearly. Chief mechanic: “I check it once a month—mostly to prove it’s still running.”
Case 2 – Singapore Data Center: Dual 2.5 MW MTU black-starts synchronized in 4.1 s via DECS-200-L2 GOOSE messaging, beating the 5 s UPS ride-through and earning a LEED-Platinum tick.
Related Product Combination Solutions:
- ICRM-7L – 7 A inrush limiter; lets DECS-200-L2 cold-start on 12 V lithium packs.
- DECS-250-L2 – 20 A big brother, same 7 kg shell.
- IDP-600 – 4.3″ sunlight-readable HMI clips to the DECS-200-L2 lid.
- BE1-11f – Feeder relay shares the same CTs, one Modbus poll.
- APS-200 – Auto-paralleling module closes breaker at 8° phase.
- PSS-100 – Plug-in stabilizer for wind-farm flicker compliance.
- BESTCOMS-Mobile – iOS/Android app pushes settings over Bluetooth.
Installation, Maintenance, and Full-Cycle Support:
Hang the DECS-200-L2 on two M8 studs, snap in four Weidmüller connectors, and point your phone—the AR wizard lights every wire in 3D. Auto-tune spins the set at 30 % speed for 38 s, emails you a signed PDF, and you’re drinking coffee before the paint dries.
It self-tests every 6 h, texts you a 1-page health score, and stores 24 months of 1 ms waveforms on a micro-SD you can pop out with a fingernail. Swap a failed unit in 4 minutes—no laptop, no ladder—thanks to magnetic quick-plug field leads.
Basler keeps every DECS-200-L2 alive forever: free firmware every quarter, 72-hour courier spares from five continents, and a named engineer who already knows your serial number. Ten-year warranty is just the warm-up.
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