Surge Protection Device for Wind Turbine 2019-01-18T13:40:32+00:00

SPD for Generator Lines

SPD for Power Supply

Surge Protection Device for Wind Turbine

In wind turbine system, 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.

Properly installed surge protective devices (SPDs) will minimize the potential impact of lightning events in wind turbine.

SPD for Generator Lines in Wind Turbine

  • TUV certified non-pluggable T1+2 SPD with high energy MOV and TSG technology
  • High lightning current discharge capacity up to 25kA 10/350μs
  • Short circuit withstand capability 25kArms
  • Degradation indication & optional remote signal contact
  • Lower voltage protection level
  • Comply with EN/IEC61643-11, UL 1449 4th, IEEE C62.41, CSA C22.2
ModelB25VG440-SB25VG440B25VG760-SB25VG760
ComplianceEN/IEC 61643-11, UL 1449th
Category EN/IEC/ULT1+2/ Class I+II /Type 1ca
Nominal VoltageUn400V690V
Max. Continuous Operating Voltage (AC)Uc440V760V
TechnologyHigh energy MOV & TSG(Trigger spark gap) technology

Thermal disconnector

Ports/Protection Mode1 / L-PE or L-N or N-PE
Lightning Impulse Current (10/350μs)Iimp25kA
Nominal Discharge Current (8/20μs)In25kA
Max. Discharge Current (8/20μs)Imax100kA
Voltage Protection LevelUp≤2.4kV≤3.5kV
Voltage Protection Level @ 5kAUres<2.0kV<2.5kV
Temporary Overvoltage TOV
—Withstand Mode
Utov690V/5s1000V/5s
Residual CurrentIPENo
Follow CurrentIfNo
Short-Circuit Current Rating per IEC 61643Isc25kArms
Response TimetA≤25ns
Backup Fuse (only required if not already provided in mains)250A gL/gG
EnvironmentTemperature Range: -40ºC ~ +80ºC; Humidity: ≤95%;

Altitude: ≤2000m

Cross-Section of Connection WireSingle-strand 35mm2; multi-strand 25mm2
Mounting35mm DIN-rail in accordance with EN 50022/DIN46277-3
Enclosure Materialthermoplastic; extinguishing degree UL94 V-0
Degree of ProtectionIP20
Installation Width2 modules, DIN 43880
Failure Indication /StatusRED- Failure
Remote Alarm ContactYesNoYesNo
Approvals, certificationTUV, CE
Additional Data for Remote Alarm Contacts
Remote Alarm Contact TypeIsolated Form C
Switching Capability Un/InAC: 250V/0.5A; DC: 250V/0.1A; 125V/0.2A; 75V/0.5A
Max. Size of Connecting WireMax. 1.5mm2 (or # 16AWG)

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

SP×××/3P-S

SP×××/3PT-S

ModelSP440/3P-SSP760/3P-SSP860/3PT-S
ComplianceEN/IEC 61643-11, UL 1449th
Category EN/IEC/ULT2/ Class II /Type 1ca
Nominal VoltageUn400/690Vac
Max. Continuous Operating Voltage (AC)Uc440V760V860V
TechnologyHigh energy MOV technology; TPAE technology (patented)High energy MOV & GDT technology; TPAE technology (patented)
Ports/Protection Mode1 / L-PEN
Nominal Discharge Current (8/20μs)In20kA
Max. Discharge Current (8/20μs)Imax40kA
Voltage Protection LevelUp≤2.4kV≤3.0kV≤4.0kV
Voltage Protection Level @ 5kAUres<2.0kV<2.0kV<2.5kV
Temporary Overvoltage TOV
—Withstand Mode
Utov582V/5s900V/5s1200V/5s
Residual CurrentIPE<0.1mA<0.1mANo
Follow CurrentIfNo
Short Circuit Current Rating per UL 1449Isccr200kArms
Response TimetA≤25ns
Backup Fuse (only required if not already provided in mains)125A gL/gG
EnvironmentTemperature Range: -40ºC ~ +80ºC; Humidity: ≤95%; Altitude: ≤3000m
Cross-Section of Connection WireSingle-strand 35mm2; multi-strand 25mm2
Mounting35mm DIN-rail in accordance with EN 50022/DIN46277-3
Enclosure Materialthermoplastic; extinguishing degree UL94 V-0
Degree of ProtectionIP20
Installation Width3 modules, DIN 438804 modules, DIN 43880
Failure Indication /StatusRED- Failure
Remote Alarm ContactYes
Approvals, certificationCE
Diagram112
Additional Data for Remote Alarm Contacts
Remote Alarm Contact TypeIsolated Form C
Switching Capability Un/InAC: 250V/0.5A; DC: 250V/0.1A; 125V/0.2A; 75V/0.5A
Max. Size of Connecting WireMax. 1.5mm2 (or # 16AWG)

Surge Protection Solution for Wind Turbine

Power SystemInstallation LocationDevice to be ProtectedProsurge Model
Generator Lines 400/690Vac, 3-phase, 3-wire+ground (or TN-C)Nacelle1Stator of GeneratorSP×××/3P-S
2Rotor Winding of GeneratorSP×××/3PT-S
Tower Base3Main Power ServiceSP×××/3P-S
4InverterSP×××/3PT-S
Substation5Low Voltage Side of the TransformerB××VG××
Power Supply 230/400Vac, 3-phase, 3-wire+ground (or TN-C)Hub6Pinch-control CabinetSP×××/3P-S
Nacelle7Aircraft Warning LightSP×××/2P-S
8Nacelle Control CabinetSP×××/3P-S
Tower Base9Tower-base Control CabinetSP×××/3P-S

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For urgent technical consultation, please contact Bill Goldbach +1 727 488 9544