Outdoor switches for railway lines
20Pages

Our good and successful cooperation with DeutscheBahn AG already began in the fifties. Over the course of time more and more importance was attached to the reliability of traction power sup- ply which made it necessary to design switching devices with new technologies. Initial efforts already commenced in the Sixties in the field of vacuum tech- nology and this led to the first outdoor line sectiona- lizers* with vacuum interrupter. Based on a very intensive cooperation with DB (German Rail) we were able to install an outdoor switch disconnector FLa in the railway network for trial...

The trend is to use a vacuumBasic research on switching in a vacuum began inGermany during the Seventies. At this time low-oil switches had become firmly established in medium voltage networks, based on their reliable operation over decades, and were accepted by users as relia- ble devices. In laboratory tests it proved that the vacuum switches were superior by far to the con- ventionally applied switching principles. All these requirements necessitate a switching unitwith electrical properties that preferably do not change throughout its service life. The vacuum inter- rupter is...

Design of switch The types of outdoor switch-disconnector and outdoordisconnecting switch mostly differ through the appli- cation of different cast-resin insulators (length and height of creepage path) as well as in the baseframes (U-profile and sheet-metal frame). Optionally its possible to equip the switches with, silicon combined insulators. > General Design These Driescher outdoor switches are specially desi-gned for railway applications. They meet the specifi- cations according to the EN 50152-2. The 1-pole and 2-pole switches are designed for a rated voltage range from 15 kV to 29 kV...

Type according 3EBS09.04.20 (DB-Mode) Nominal voltage Rated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated breaking current Rated cable-charging breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Rated short-circuit making current Creepage distance approx. U > n 15 kV2000 A17.5 kV125 kV 50 kV 16,7 Hz2000 A32 A20 kA3 s50 kA 16 kA765LT3-09463445 kgLT3-09463445 kgDrawing-No.Part-No. (see drawing) Weight approx. 25 kV2000 A27.5 kV170 kV 95 kV 50...

FLa 15/97-1B Type 27.5 kV2000 A29 kV185 kV 80 kV 50 Hz2000 A32 A20 kA3 s50 kA 16 kA1200 mm Nominal voltageRated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated breaking current Rated cable-charging breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Rated short-circuit making current Creepage distance approx. U > n 29 kV630 A31.5 kV185 kV 80 kV 50 Hz630 A32 A20 kA3 s50 kA 16 kA1200 mm I > n U > Nm U > Ni U > a f > r I > 1 I > 4a I > k t > k I > p I...

Type FLa 15/97-2B Nominal voltageRated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated breaking current Rated cable-charging breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Rated short-circuit making current Creepage distance approx. Distance between phases min. U > n 25 kV2000 A27.5 kV185 kV80 kV50 Hz2000 A32 A20 kA3 s50 kA 16 kA1200 mm 1000 mm 25 kV2000 A27.5 kV250 kV95 kV50 Hz2000 A32 A20 kA3 s50 kA 16 kA964 mm1000 mm I > n U > Nm U > Ni U >...

FLa 15/97-1B Type > 25 kV2000 A27.5 kV185 kV 80 kV 16.7 u. 50 Hz2000 A32 A20 kA3 s50 kA 16 kA1120 mm Nominal voltageRated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated breaking current Rated cable-charging breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Rated short-circuit making current Creepage distance approx. U > n 27,5 kV2000 A31.5 kV250 kV 95 kV 50 Hz2000 A32 A20 kA3 s50 kA16 kA1420 mm I > n U > Nm U > Ni U > a f > r I > 1 I > 4a I > k...

Type FLa 15/97-2B Nominal voltageRated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated breaking current Rated cable-charging breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Rated short-circuit making current Creepage distance approx. Distance between phases min. U > n 27,5 kV2000 A31.5 kV250 kV95 kV50 Hz2000 A32 A20 kA3 s50 kA 16 kA1420 mm 1290 mm I > n U > Nm U > Ni U > a f > r I > 1 I > 4a I > k Typetests t according to DIN EN50152-2 03/98...

FTr 27.5-2000-1B Type FTr 25-2000-1B Typetests 27.5 kV2000 A29 kV185 kV80 kV50 Hz6 A 9 A20 kA3 s50 kA1200 mm acc. to 3 Ebs 09.04.30(DB-design) Nominal voltage Rated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated cable-charging breaking current Rated transformer breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Creepage distance approx. U > n I > n U > Nm U > Ni U > a f > r I > 4a I > 3 I > k t > k I > p s FT3-09639845 kgFT3-09978745...

Type FTr 25-2000-2B Nominal voltageRated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated cable-charging breaking current Rated transformer breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Creepage distance approx. Distance between phases min. U > n 25 kV2000 A27.5 kV250 kV95 kV50 Hz6 A 9 A20 kA3 s50 kA1600 mm 1000 mm I > n U > Nm U > Ni U > a f > r I > 4a I > 3 I > k t > k I > p sp Typetests according to DIN EN50152-2 03/98 (VDE 0115 Part 320-2)...