
BP25VT/960-S/3PI-WD

BPS12.5V/1000-S/3P-WD
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.
Surge Protection for Generator Lines in Wind Turbine
Surge Protective Devices (SPDs), intended to afford protection from electrical surges and spikes, including those caused directly and indirectly by lightning, are utilized as both complete devices and as components within electrical equipment installed in AC and DC power applications.
Wind turbine converts the wind’s kinetic energy into electrical energy. Arrays of large turbines, known as wind farms, are becoming an increasingly important source of renewable energy and are used by many countries as part of a strategy to reduce their reliance on fossil fuels.
Wind turbines are tall, isolated towers composed of sensitive electronics, all of which are factors that make lightning a persistent and real threat. A properly installed lightning protection system, however, will intercept the lightning and effectively and safely conduct it to the earth without risking physical destruction to the wind turbine. This issue has become increasingly critical as wind turbine systems become more sophisticated and vulnerable to lightning, and that lightning dangers will increase with turbine height.
According to the updated National Fire Protection Association (NFPA) handbook:“While physical blade damage is the most expensive and disruptive damage caused by lightning, by far the most common is damage to the control system”. In Wind turbine system, there are many vulnerable electronics equipments which be damaged by lightning strikes or and transient over-voltages, such as:
- The control system, include sensors, actuators, and the motors for steering the equipment into the wind etc.
- The electronics, include transformer, frequency converter, switchgear elements, and other expensive, sensitive equipment.
- And Generators, battery subsystem etc.
Properly installed surge protective devices (SPDs) will minimize the potential impact of lightning events.
Subsystem | Possible location | To be protected | PROSURGE SPD model |
Generator lines 690Vac | B | The stator of generator | BPS12.5V/1000-S/3P-WD |
A | The rotor winding of generator | BPS12.5V/1000-S/3PT-WD | |
D,E,G | Main power service | BPS12.5V/1000-S/3P-WD | |
C | Converter | BPS12.5V/1000-S/3PT-WD | |
F | The low voltage side of the transformer | BP25VT/960-S/3PI-WD | |
Power supply 277/480Vac | L,K | Pinch-control cabinet | DT50/350-3V-S Or DT50/350-(3V+T)-S |
J | The aircraft warning light | DS50/350-2V-S Or DS50/350-(V+T)-S | |
I | Nacelle Control cabinet | DT50/350-3V-S Or DT50/350-4V-S/ DT50/350-(3V+T)-S | |
N,M | Yaw-control cabinet | DT50/350-3V-S Or DT50/350-4V-S/ DT50/350-(3V+T)-S | |
O | Tower-base Control cabinet | DT50/350-3V-S Or DT50/350-4V-S/ DT50/350-(3V+T)-S | |
DC power supply 24,48V | T | Anemometer | PV50/48-V-C-S |
… | Other DC equipment | PV50/48-V-C-S | |
Ethernet communication | R, … | Ethernet network | 48V POE: D-48/RJ45-CAT6/H(POE) 5V: D-05/RJ45-CAT6/H |
Measuring and control equipment, Signal lines | Q,S,T,U,V,W,X,… | Sensors, measuring and control equipment,bus system | DM-XX-M2N2 DM-XX-M2N4 (shielded pairs) |
SPD for Power Supply in Wind Turbine
- Pluggable Type 1+ Tpye 2 / T2 SPD with high energy MOV technology for wind turbine
- High surge current discharge capacity from 40kA 8/20μs up to 100kA 8/20μs
- Pluggable module for easy replacement
- Degradation indication & optional remote signal contact.
- Comply with IEC/EN 61643-11, UL 1449 4th, IEEE C62.41, CSA C22.2
Model | BP25VT/960-S/3PI-WD | BPS12.5V/1000-S/3P-WD | DT50/1500-S/3PI | DS50/350-2V-S | DT50/350-3V-S | DT50/350-4V-S | PV50/48-V-C-S | |
Compliance | EN/IEC 61643-11, UL 1449 | IEC/EN 61643-31; EN 50539-11 | ||||||
Category EN/IEC/UL | T1+T2/ Class I+II | T2/ Class II | ||||||
Nominal Voltage | Un | 690V~ 800Vac 3-Phase TN-C/IT | 220/380VAC~277/480VAC | 48VDC | ||||
Max. Continuous Operating Voltage | Uc | 960VAC | 960VAC | 1500VAC | 350VAC | 85VDC | ||
Technology | High energy MOV | High energy MOV; TPAE technology | ||||||
Ports/Protection Mode | L-PE, L-L | L-PE, L-L | L-PE, L-L | L-PE ,N-PE | L-PE | L-PE ,N-PE | DC+ to DC- , DC+/- to PE | |
Nominal Discharge Current (8/20μs) by pole | In | 25kA | 25kA | 20kA | 20kA | 20kA | 20kA | 20kA |
Max. Discharge Current (8/20μs) by pole | Imax | 100kA | 65kA | 50kA | 50kA | 50kA | 50kA | 50kA |
Lightning impulse current (10/350) by pole | Iimp | 22kA | 6kA | / | 7.5kA | 7.5kA | 7.5kA | 7.5kA |
Voltage Protection Level | Up | ≤4.0kV | ≤4.0kV | ≤6.0kV | ≤1.5kV | ≤1.5kV | ≤1.5kV | DC+/- to PE:≤0.6kV; DC + to DC -:≤1.0kV; |
Residual Current | IPE | 0mA | 0.1mA | 0.1mA | 0.1mA | 0.1mA | 0.1mA | 0.1mA |
Follow Current | Ifi | No | No | No | No | No | No | No |
Short Circuit Current Rating per UL 1449 | Isccr | 50kArms | 50kArms | 25kArms | 25kArms | 25kArms | 25kArms | 25kArms |
Environment | Temperature Range: -40ºC ~ +80ºC; Humidity: ≤95%; Altitude: -500m ~ +4000m | |||||||
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 | |||||||
Failure Indication /Status | RED- Failure | |||||||
Remote Alarm Contact | Yes | |||||||
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) |
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