SPD for Power Supply
Surge Protection for Wind Turbines
Wind turbines are typically placed in exposed regions for better wind conditions. There are many vulnerable electronics equipment which will be damaged by lightning strikes or transient over-voltages, such as:
- The control system, including sensors, actuators, and the motors for steering the equipment into the wind etc.
- The electronics, including transformer, frequency converter, switchgear elements, and other expensive, sensitive equipment.
- Generators, battery subsystem etc.
Wind turbines are at high risk of lightning strikes, Surge Protection is necessary.
Properly installed surge protective devices (SPDs) will minimize the potential impact of lightning events in wind turbine.
Wind turbines face significant lightning risks, demanding robust protection solutions that meet stringent international standards. Our lightning protection systems ensure full compliance with industry regulations, safeguarding wind power infrastructure from both direct and indirect lightning strikes.
SPD for Generator Lines in Wind Turbine
the data sheets to be updated
SPD for Power Supply in Wind Turbine
- Pluggable T2 SPD with high energy MOV technology for wind turbine
- High reliability due to global patented thermally protected with special arc-extinguish device (TPAE technology)
- High surge current discharge capacity up to 40kA 8/20μs
- Pluggable module for easy replacement
- Degradation indication & optional remote signal contact.
- Prewired for three phase 3W+G network systems such as TN-C etc
- Comply with IEC/EN 61643-11, UL 1449 4th, IEEE C62.41, CSA C22.2
| Model | SP440/3P-S | SP760/3P-S | SP860/3PT-S | |
| Compliance | EN/IEC 61643-11, UL 1449th | |||
| Category EN/IEC/UL | T2/ Class II /Type 1ca | |||
| Nominal Voltage | Un | 400/690Vac | ||
| Max. Continuous Operating Voltage (AC) | Uc | 440V | 760V | 860V |
| Technology | High energy MOV technology; TPAE technology (patented) | High energy MOV & GDT technology; TPAE technology (patented) | ||
| Ports/Protection Mode | 1 / L-PEN | |||
| Nominal Discharge Current (8/20μs) | In | 20kA | ||
| Max. Discharge Current (8/20μs) | Imax | 40kA | ||
| Voltage Protection Level | Up | ≤2.4kV | ≤3.0kV | ≤4.0kV |
| Voltage Protection Level @ 5kA | Ures | <2.0kV | <2.0kV | <2.5kV |
| Temporary Overvoltage TOV —Withstand Mode | Utov | 582V/5s | 900V/5s | 1200V/5s |
| Residual Current | IPE | <0.1mA | <0.1mA | No |
| Follow Current | If | No | ||
| Short Circuit Current Rating per UL 1449 | Isccr | 200kArms | ||
| Response Time | tA | ≤25ns | ||
| Backup Fuse (only required if not already provided in mains) | 125A gL/gG | |||
| Environment | Temperature Range: -40ºC ~ +80ºC; Humidity: ≤95%; Altitude: ≤3000m | |||
| Cross-Section of Connection Wire | Single-strand 35mm2; multi-strand 25mm2 | |||
| Mounting | 35mm DIN-rail in accordance with EN 50022/DIN46277-3 | |||
| Enclosure Material | thermoplastic; extinguishing degree UL94 V-0 | |||
| Degree of Protection | IP20 | |||
| Installation Width | 3 modules, DIN 43880 | 4 modules, DIN 43880 | ||
| Failure Indication /Status | RED- Failure | |||
| Remote Alarm Contact | Yes | |||
| Approvals, certification | CE | |||
| Diagram | 1 | 1 | 2 | |
| Additional Data for Remote Alarm Contacts | ||||
| Remote Alarm Contact Type | Isolated Form C | |||
| Switching Capability Un/In | AC: 250V/0.5A; DC: 250V/0.1A; 125V/0.2A; 75V/0.5A | |||
| Max. Size of Connecting Wire | Max. 1.5mm2 (or # 16AWG) | |||
Surge Protection Solution for Wind Turbine
| Power System | Installation Location | Device to be Protected | Prosurge Model | |
| Generator Lines 400/690Vac, 3-phase, 3-wire+ground (or TN-C) | Nacelle | 1 | Stator of Generator | SP×××/3P-S |
| 2 | Rotor Winding of Generator | SP×××/3PT-S | ||
| Tower Base | 3 | Main Power Service | SP×××/3P-S | |
| 4 | Inverter | SP×××/3PT-S | ||
| Substation | 5 | Low Voltage Side of the Transformer | B××VG×× | |
| Power Supply 230/400Vac, 3-phase, 3-wire+ground (or TN-C) | Hub | 6 | Pinch-control Cabinet | SP×××/3P-S |
| Nacelle | 7 | Aircraft Warning Light | SP×××/2P-S | |
| 8 | Nacelle Control Cabinet | SP×××/3P-S | ||
| Tower Base | 9 | Tower-base Control Cabinet | SP×××/3P-S | |
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