Wind Turbine installation

Transcription

1 Reliability in Surge Protection Wind Turbine installation

2 Windmill generators are equipment especially exposed to the risks of lightning and transitory overvoltages : due to their height and to their location on high or/and isolated spots, the probability of direct lightning strikes is much higher than for traditional installations. In case of lightning strike, windmill generators are usually designed to drain the lightning current in a safe way, but internal equipments (generator, management, control/commands, sensors.) will be submitted to transient surges induced by the phenomena: in order to ensure the necessary operation and to improve the windmill generator s global reliability, surge protectors are necessary and will have to be installed at the entrance of the various sensitive equipments. 7 Obstruction Lighting Datalines LED OBSTA FLASH DLU / DLA Datalines SPD 90V 8 230V / 00V 2 DU33S-000G/WD 3-phase Type 2 SPD - 90V DS3S-90/WD AC Type 2 SPD DS230-8DC Type 2 SPD 8DC DS20-230/G 0/G Single-phase Type 2 SPD DS3S-00 3-phase Type 2 SPD for 00V 3 DS23VG-90 3-phase Type SPD 90V 3

3 Surge protector and obstruction lighting for wind turbines Obstruction lighting 7 Sensor Control cabinet (Blade management) Control cabinet (control pitch) Motor «Pitch System» connection Rotor Control cabinet (nacelle direction / Yaw) Sensor Motor Stator connection 2 Power cabinet 8 Energy supply cabinet «Yaw system» Monitoring cabinet Weather sensor link Surge protectors for windmill generators are divided in different categories : Surge protectors for AC network that may receive a part of the lighting current : Type surge protectors (eg : DS23VG-90 General power supply cable 3-phase 00V supply Dataline Surge protectors for AC network submitted to induced or coupled surges: Type 2 surge protectors (eg: DS3S-00, DU33S-000/WD.) Surge protectors for communication network or sensor (eg. DLU or DLA range) Transformer Nacelle monitoring system 3 Main power supply Outdoor communication link NB : Typical configuration that may vary according to the windturbine manufacturer and the type of installations.

4 3-phase surge protectors Citel range DU33S-000/WD/G DS3S-90 DS3S-00 Network 3-phase + Neutral 00/90 V 3-phase 00/90 V 3-phase 00 V DU33S-000/WD/G SPD type Type 2 Type 2 Type 2 Nominal discharge current ka 20 ka 20 ka Maximal discharge current 00 ka 0 ka 0 ka Screw terminal 3 mm² max Screw terminal 3 mm² max Screw terminal 2 mm² max DS3S-90 Mounting DIN Rail DIN Rail DIN Rail End of life disconnection + Indicator disconnection + Indicator disconnection + Indicator Remote signalling Yes Yes Yes Dimensions (width) mm mm mm DS3S-00 Référence CITEL Network DS23VG-90 3-phase 00/90 V SPD type Type +2+3 DS23VG-90 Single-phase surge protector Nominal discharge current Maximum lighting current 0/30µs Maximal discharge current Mounting End of life Remote signalling Dimensions (width) 30 ka 7 ka 00 ka Screw terminal 3 mm² max DIN Rail disconnection + Indicator Yes 270 mm Référence CITEL Single-phase DS20-230/G 230 V SPD type Type 2 DS20-230/G Nominal discharge current Maximal discharge current Mounting End of life Remote signalling Dimensions (width) 20 ka 0 ka Screw terminal 2 mm² max DIN Rail disconnection + Indicator Option (DS20S-230/G) 8 mm

5 8V DC surge protector CITEL range DC power supply DS230-8DC 8V DC SPD type Type 2 DS230-8DC Nominal discharge current Maximal discharge current Mounting End of life Remote signalling Dimensions (width) ka 30 ka Screw terminal 0 mm² max DIN Rail SPD disconnection + Indicator On Option (DS230S-8DC) 8 mm Dataline SPD DLA DLU CITEL range DLA range DLU range Format Pluggable SPD Monoblock SPD Typical application Datalines Datalines Configuration pair + shield pair + shield Nominal line voltage 2 V, 2 V, 0 V 2 V, 2 V, 0 V Maximum line current 300 ma 300 ma Nominal discharge current ka ka Maximal discharge current 20 ka 20 ka Mounting DIN Rail DIN rail OBSTA Obstruction lighting OBSTA P/N Main characteristics Power supply Max. consumption 3720 White only 8 Vdc < 7 W 372 Red only 8 Vdc < 2 W 3722 Bi color 8 Vdc < 7 W 3723 White only 20/230 Vac < 7 W 372 Red only 20/230 Vac < 2 W 372 Bi color 20/230 Vac < 7 W Main characteristics Luminous output Color Beam spread Day Night Day Night Vertical Horizontal Flashes per minute Red only 2000 Cd Red White only Cd 2000 Cd White White Bi color Cd 2000 Cd White Red

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