Description
Interference-free telemetry across sprawling industrial switchyards.
GoodWe SEC3000C is a utility-grade smart energy controller with an integrated optical fiber ring switch, engineered to deliver noise-free telemetry, dynamic zero-export, and active/reactive power dispatch across sprawling multi-megawatt solar plants.
Integrated Optical Fiber Ring Switch
Eliminates electromagnetic noise interference over long distances across high-voltage commercial switchyards.
Large-Scale 60-Inverter Fleet Management
Synchronizes active and reactive power modulation across multi-megawatt commercial solar arrays.
Rapid Utility Export Limiting & Q-Control
Meets strict European and global utility grid dispatch requirements with sub-second response times.
IP65 All-Weather Industrial Enclosure
Pre-fitted with optical transceivers, industrial power supplies, and overvoltage suppressors.
More product details
Standard copper RS485 communication lines suffer severe electromagnetic noise and packet loss when routed alongside high-voltage MV transformers and heavy industrial drives. The SEC3000C integrates an industrial optical fiber ring switch.
- Optical fiber transceivers transmit telemetry over thousands of meters with zero electromagnetic interference.
- Ring topology ensures communication redundancy. If one fiber link is severed, data reroutes in milliseconds.
- Internal pre-wired optical patch panel streamlines field fiber termination and testing.
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High-speed active/reactive power modulation and SCADA integration.
Factory-assembled in a robust IP65 outdoor enclosure, the SEC3000C provides sub-second closed-loop control to modulate active power export and reactive power (Q(U), cos φ) across 60 inverters. Enforces contractual zero-export and custom utility power curtailment limits in real time. Supports Modbus TCP protocol for seamless integration into central utility SCADA and EMS dispatch platforms. IP65 die-cast enclosure installs cleanly on external walls or pad-mounted distribution frames (-30 to +60 °C).
Holds a 15-port ethernet switch
LAN inverters stop at 10. The switch sits in this cabinet. RS485 inverters stop at 60.
Sits on 100 to 240 V AC
Frequency is 50 / 60 Hz. Draw is 25 W or less. Temperature is minus 30 to 60 C.
Holds a GM330 in the cabinet
The meter is one GM330. The logger is one EzLogger3000C. Both sit behind the IP66 door.
Technical data
Noise-immune optical fiber networking and central power dispatch for multi-megawatt solar installations.
Utility-grade plant controller with integrated optical fiber communication interface.
Upgraded with an internal optical fiber ring switch, the SEC3000C delivers interference-free communication across sprawling multi-megawatt solar plants and large industrial facilities. It coordinates up to 60 commercial inverters with high-speed grid dispatch, automated zero-export control, and dynamic voltage regulation, eliminating communication drops caused by high-voltage electromagnetic interference.
- Optical Interface
- Fiber Ring
- Fleet Control
- 60 Units
- Sub-Second Response
- < 1s
- Outdoor Enclosure
- IP65
Capacity & Interfaces
- Max. inverters, RS485
- 60 (up to 20 per RS485 port)
- Max. inverters, LAN
- 10
- RS485 ports
- 4
Configuration
- Built-in smart meter
- GoodWe GM330
- Power supply
- 100 ~ 240 V, 50 / 60 Hz
- Power consumption (W)
- ≤ 25
Physical
- Operating temperature (°C)
- -30 ~ +60
Verified system composition
- Maximum RS485 inverters
- 60
- Maximum LAN inverters
- 10
- Integrated data logger
- 1 × GoodWe EzLogger3000C
- Integrated smart meter
- 1 × GoodWe GM330
- Ethernet switch
- 15 ports
- Ingress protection
- IP66
Project fit
Where this model fits.
Scenarios that show which projects the GoodWe SEC3000C Smart Energy Controller belongs in, what to verify before quoting, and when another model is the better pick.
Large Multi-Megawatt Solar Plants with Distant Inverter Clusters (1 MW to 10 MW+)
Utility solar farms, airport ground mounts, or sprawling industrial complexes where inverters are situated hundreds of meters apart from the central substation.
Built-in optical fiber ring switch provides reliable, lightning-isolated communication over long distances where copper RS485 cables would fail.
- BoundaryIf all commercial inverters are located within a single compact switchroom or within 200 meters of the main electrical panel, step down to the standard SEC3000 to save hardware cost. ---
- If all commercial inverters are located within a single compact switchroom or within 200 meters of the main electrical panel, step down to the standard SEC3000 to save hardware cost. ---
Documents
Compatibility list of GoodWe inverters and IoT products (EN) GoodWe SEC3000C DatasheetProduct questions
What is the main advantage of the SEC3000C over the standard SEC3000?
Built-in industrial optical fiber ring switch for long-distance, noise-free communication. While both units manage up to 60 inverters, the SEC3000C integrates an optical fiber ring network switch. This allows plant designers to connect distant inverter stations via single-mode or multi-mode optical fiber, eliminating communication packet dropouts caused by high-voltage electromagnetic fields and ground potential differences.
What optical connectors and fiber types are supported?
Standard SC/ST/FC industrial optical interfaces supporting single-mode and multi-mode fiber. The internal optical transceivers support standard industrial fiber connections, allowing reliable data transmission across distances exceeding 2,000 to 10,000 meters depending on the optical module selected.