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Fritz Driescher & Söhne GmbH
DRIESCHER-Outdoor Switches for Railway lines

DRIESCHER-Outdoor Switches for Railway lines

Product catalog summary

Overview: This document outlines the technical specifications and descriptions for indoor switches designed for railway applications by ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH. These switches comply with EN 50152-2 standards and are suitable for nominal voltages up to 27.5 kV and rated currents up to 4000 A.

General Specifications: The switches are 1-pole designs intended for railway lines, with a voltage range of 15 kV to 27.5 kV and current range of 400 A to 4000 A. They feature a stored energy mechanism for rapid operation and are constructed from electrolytic copper with electro-silver plating for corrosion resistance.

Operating Conditions: Suitable for installation up to 1000 meters above sea level, with necessary adjustments for higher altitudes. They operate under normal conditions as per EN 62271-1, with ambient temperatures ranging from -40°C to +40°C.

Product Details: The document lists various models of indoor switch-disconnectors and disconnectors, each with specific technical parameters such as nominal voltage, rated current, insulation levels, and impulse voltage. Each model includes motor drives, signalling contacts, and manual emergency actuators.

Key Models:

H 27-1B: 15 kV, 400 A, with motor drive and release coil.
H 29-1B: 15 kV, 630 A, with motor drive and release coil.
H 22-1B: 27.5 kV, 630 A, with motor drive and release coil.
L 31 Series: Various configurations for 15 kV and 27.5 kV, with rated currents ranging from 630 A to 4000 A.

Compliance and Testing: All products are tested according to DIN EN 50152-2 standards, ensuring reliability and safety in railway applications.

High-Voltage High-Breaking-Capacity Fuses:

Type: H 221 Sta (with striker pin)
Rated Voltage: 24 and 36 kV
Rated Current: Up to 200 A
Material: Porcelain tubes glazed brown for indoor and outdoor use

Manufacturer Information:

Company: Elektrotechnische Werke Fritz Driescher & Söhne GmbH
Location: Moosburg, Germany
Contact: Tel. +49 87 61 6 81-0, Fax +49 87 61 68 11 37
Website: driescher.com

Product Specifications:

Dimensions, weights, diagrams, and descriptions are non-binding and subject to change.
Printed on chlorine-free bleached paper for environmental considerations.

Indoor Switches for Railway Lines:

Part Numbers: 772 07007 (7 t), 772 07010 (10 t)

Purpose of Stroke Limitation Pads:

Designed to address mechanical stress from frequent short circuits in contact-line networks.
Used in main transforming stations to maintain winding pressure and compensate for winding shortening due to setting and high-impact short circuits.
Developed by the Bundesbahn Central Office to eliminate the need for costly re-compressing of transformers.
HB Pad: Drawing number 2 Ekk 702.6.12.82.851.00, replaces traditional clamping screws.

Catalog excerpts

DRIESCHER-Outdoor Switches for Railway lines-1

Indoor Switches for Railway lines

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DRIESCHER-Outdoor Switches for Railway lines-2

767 DRIESCHER - Indoor switches for railway lines according to EN 50152-2 1-pole indoor disconnector with earthing switch L 31; Un 15 kV, 1600 A Fuse-holders L 31; Un 27.5 kV, High-voltage high-breaking-capacity fuses 24 kV and 36 kV Stroke limitation pads General These Driescher indoor switching devices are specifically designed for railway applications. They are in compliance with the specifications according to EN 50152-2. The 1-pole switches can be used for a rated voltage range of 15 kV to 27.5 kV, depending on the respective design, and for a rated current range of 400 A to 4000 A. References:...

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DRIESCHER-Outdoor Switches for Railway lines-3

DRIESCHER - Indoor switches for railway lines1-pole indoor switch-disconnector H 27-1B; Un 15 kV Type H 27-1B Rated insulation level UNm 17.5 kV Rated impulse voltage UNi 125 kV Short-duration power-frequency test level Ua 50 kV Rated breaking current I1 400 A Rated short-time withstand current Ik 16 kA Rated duration of short-curcuit current tk 1 s Rated peak withstand current Ip 40 kA Rated short-circuit making current Ima 40 kA • with motordrive and release coil • signalling contact (6-pole) and terminal strip • for contact line feeders and transformer-train preheating • Equipment Switch Wiring...

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DRIESCHER-Outdoor Switches for Railway lines-4

DRIESCHER - Indoor switches for railway lines1-pole indoor switch-disconnector H 29-1B; Un 15 kV Type H 29-1B Rated insulation level UNm 17.5 kV Rated impulse voltage UNi 125 kV Short-duration power-frequency test level Ua 50 kV Rated breaking current I1 100 A Rated short-time withstand current Ik 20 kA Rated duration of short-curcuit current tk 1 s Rated peak withstand current Ip 50 kA Rated short-circuit making current Ima 5 kA • with motordrive and release coil • signalling contact (6-pole) and terminal strip • for contact line feeders and transformer-train preheating Switch Wiring Motor-...

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DRIESCHER-Outdoor Switches for Railway lines-5

1-pole indoor switch-disconnector H 22-1B; Un 27.5 kV Type H 22-1B Nominal voltage Rated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated breaking current Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Rated short-circuit making current Typetests • according to DIN EN 50152-2 03/1998 (VDE 0115 part 320-2) • with motordrive and release coil • with signalling contact (6-pole) and terminal strip • for contact line feeders and transformer-train preheating • Equipment...

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DRIESCHER-Outdoor Switches for Railway lines-6

DRIESCHER - Indoor switches for railway lines1-pole indoor disconnector L 31; Un 15 kV, In 630 A Type L 31/070194 Rated insulation level UNm 17.5 kV Rated impulse voltage UNi 125 kV Short-duration power-frequency test level Ua 50 kV Rated short-time withstand current Ik 20 kA Rated duration of short-curcuit current tk 1 s Rated peak withstand current Ip 50 kA • with motordrive Switch Wiring Motor- Motordrive Motordrive Weight Type Drawing-no. Part-no. plan-no. voltage mechanism Type approx. kg mounting side

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DRIESCHER-Outdoor Switches for Railway lines-7

DRIESCHER - Indoor switches for railway lines1-pole indoor disconnector L 31; Un 15 kV, In 1600 A Nominal voltage Rated current Rated insulation level Rated impulse voltage Short-duration power-frequency test level Rated frequency (A.C.) Rated short-time withstand current Rated duration of short-curcuit current Rated peak withstand current Typetests • according to DIN EN 50152-2 03/1998 (VDE 0115 part 320-2) • with motordrive • Equipment Switch Wiring Motor- Motordrive Motordrive Weight Type Drawing-no. Part-no. plan-no. voltage mechanism Type approx. kg mounting side

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DRIESCHER-Outdoor Switches for Railway lines-8

DRIESCHER - Indoor switches for railway lines1-pole indoor disconnector L 31; Un 27.5 kV, In 630 A / 1250 ATypetests 1-pole indoor-disconnector L 31 • according to DIN EN 50152-2 03/1998 • with motordrive Switch Wiring Motor- Motordrive Motordrive Weight Type Drawing-no. Part-no. plan-no. voltage mechanism Type approx. kg mounting side

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DRIESCHER-Outdoor Switches for Railway lines-9

• with motordrive Switch Wiring Motor- Motordrive Motordrive Weight Type Drawing-no. Part-no. plan-no. voltage mechanism Type approx. kg mounting side

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DRIESCHER-Outdoor Switches for Railway lines-10

1-pole indoor disconnector with mounted earthingswitch • each with motordrive • each with 4-pole signalling contact • Equipment Switch Wiring Motor- Motordrive Motordrive Weight Type Drawing-no. Part-no. plan-no. voltage mechanism Type approx. kg mounting side

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DRIESCHER-Outdoor Switches for Railway lines-11

DRIESCHER - Indoor switches for railway lines1-pole indoor slide-disconnector L 31; Un 15 kV, 630 A Type L 31/059871 Rated insulation level UNm 17.5 kV Rated impulse voltage UNi 125 kV Short-duration power-frequency test level Ua 50 kV Rated short-time withstand current Ik 20 kA Rated duration of short-curcuit current tk 1 s Rated peak withstand current Ip 50 kA • with motordrive left or right Switch Wiring Motor- Motordrive Motordrive Weight Type Drawing-no. Part-no. plan-no. voltage mechanism Type approx. kg mounting side

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DRIESCHER-Outdoor Switches for Railway lines-12

DRIESCHER - Indoor switches for railway lines1-pole indoor slide-disconnector L 31; Un 15 kV, 1600 A Type Rated insulation level UNm 17.5 kV Rated impulse voltage UNi 125 kV Short-duration power-frequency test level Ua 50 kV Rated short-time withstand current Ik 31.5 kA Rated duration of short-curcuit current tk 1 s Rated peak withstand current Ip 80 kA • according to din en 50152-2 03/1998 • with motordrive left or right ' Equipment Switch Motordrive mechanism mounting side

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DRIESCHER-Outdoor Switches for Railway lines-13

DRIESCHER - Indoor switches for railway lines1-pole indoor earthing switch L 31; Un 15 kVType L 31/090323 Nominal voltage Un 15 kV Rated insulation level UNm 17.5 kV Rated impulse voltage UNi 125 kV Short-duration power-frequency test level Ua 50 kV Rated short-time withstand current Ik 31.5 kA Rated duration of short-curcuit current tk 1 s Rated peak withstand current Ip 80 kA Rated short-circuit making current Ima 80 kA 1-pole indoor earthing switch L 31/090323 • with motordrive • Equipment Switch Wiring Type Drawing-no. Part-no. plan-no. Motordrive mechanism mounting side right

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