ABB HVL 120-0.3 Operating Manual
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ABB HVL 120-0.3 Operating Manual

Low voltage limiter
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Operating Manual
Publication number 1HC0023892
Low Voltage Limiter HVL 120-0.3
with accessories
Published by:
ABB Switzerland Ltd
Surge arresters
Jurastrasse 45
CH-5430 Wettingen 1
Switzerland
Subject to change without notice
We reserve all rights to this document and the subject matter presented herein. Reproduction, disclosure to
third parties or utilization of its content are prohibited without our express permission. © ABB Schweiz.
1HC0023892 AA
Operating manual HVL 120-0.3
Low Voltage Limiter
Type HVL 120-0.3
With metal oxide varistor and thyristors
from ABB
Silicon housing material for indoor and
outdoor applications
Transport, storage, operation, assembly,
installation and maintenance
1
GENERAL ........................................................2
2
DESCRIPTION AND FUNCTION ................2
3
TRANSPORT AND STORAGE .....................3
4
TECHNICAL DATA / DESIGN .....................4
5
OPERATION AND STRUCTURE ................6
6
7
MAINTENANCE / SERVICING ...................9
8
SQS CERTIFICATE......................................11
9
Contact details:
Phone +41 58 585 29 11
Telefax: +41 58 585 55 70
E-mail: sales.sa@ch.abb.com
www.abb.com/arrestersonline
EN

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Summary of Contents for ABB HVL 120-0.3

  • Page 1: Table Of Contents

    Subject to change without notice We reserve all rights to this document and the subject matter presented herein. Reproduction, disclosure to third parties or utilization of its content are prohibited without our express permission. © ABB Schweiz. 1HC0023892 AA Page 1 / 12...

  • Page 2: General

    The low voltage limiter HVL 120-0.3 is used in the case of DC current railways, to provide effective protection for personnel and equipment. It fulfils the tasks of a voltage limiting device in accordance with EN 50122-1, and limits the occurring shock-hazard voltages to safe values.

  • Page 3: Transport And Storage

    Operating manual HVL 120-0.3 Area of application for the low voltage limiter Protection of personnel Protection of equipment At all locations where dangers can occur from the rail potential On fully-conductive or semi-conductive components which are not part of the operating electrical circuit...

  • Page 4: Technical Data / Design

    Operating manual HVL 120-0.3 4 TECHNICAL DATA / DESIGN Technical data in accordance with EN 50123-5: 1997 Area of application: For DC current railway networks for indoor and outdoor applications Rated voltage U 50 V (DC) Highest withstand voltage U...
  • Page 5 Operating manual HVL 120-0.3 Residual voltage at nominal discharge current I No. HA ……... Serial number Dimensions Low voltage limiter T-bracket for cable connection Fixing bracket for the low voltage limiter 1HC0023892 AA Page 5 / 12...

  • Page 6: Operation And Structure

    Operating manual HVL 120-0.3 5 OPERATION AND STRUCTURE Basic circuit diagram Trigger electronics Metal oxide varistor Thyristors Operation The low voltage limiter consists of a parallel metal oxide varistor circuit, with two anti-parallel thyristors, which are fired through a trigger electronics system. This hybrid design allows optimum protection against short-time overvoltages and against overvoltages that continue for very long periods of time.

  • Page 7: Assembly And Installation

    Operating manual HVL 120-0.3 6 ASSEMBLY AND INSTALLATION Safety instructions On stationary railway installations in the vicinity of overhead line and current collector areas, voltages occur which can be dangerous to the human body. To ensure successful and safe operation, assembly and maintenance of the low voltage limiter, the following...
  • Page 8 Operating manual HVL 120-0.3 Assembly Assemble the fixing bracket for the low voltage limiter and the T-bracket for the cable connection according to the illustration. For this purpose, use the supplied M12x20 stainless steel bolts and tension washers. Tighten the bolts to a torque of 25 Nm. Use a suitable torque wrench for this purpose.

  • Page 9: Maintenance / Servicing

    Operating manual HVL 120-0.3 7 MAINTENANCE / SERVICING The low voltage limiter HVL 120-0.3 contains no parts that are subject to wear, and therefore is maintenance-free. Spare parts are not required. We recommend that the following work is carried out at regular intervals (at the latest, however, every 5 years) on all low voltage limiters that are in service.
  • Page 10 . The resistance value obtained must be at least 1 kΩ. If this is not the case, then the HVL 120-0.3 is defective and must be replaced. If the resistance value is equal to, or greater than 1 kΩ, it can be concluded that the thyristors are functional, and the HVL 120-0.3 can be re-fitted.

  • Page 11: Sqs Certificate

    Operating manual HVL 120-0.3 8 SQS CERTIFICATE The company ABB Switzerland Ltd has established a management system which complies with the requirements of the international standards for quality management and quality assurance (ISO 9001) as well as for environmental management (ISO 14001).
  • Page 12 Operating manual HVL 120-0.3 1HC0023892 AA Page 12 / 12...

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