ABB launches innovative PASS M0 145kV substation switchgear module for the UK

PASS (plug and switch system) hybrid AIS and GIS concept provides a fully integrated and self-contained switchgear module which can cut the space required for a new substation by up to 70 per cent

Lodi, 9 ABB’s innovative PASS (plus and switch system) M0 self-contained switchgear module for outdoor distribution substations has received ENA (Energy Networks Association) approval. This now enables UK substation operators to take advantage of a new generation in HV switchgear featuring a compact space-saving design which offers increased availability, reduced maintenance and low installation and operating costs.

The new PASS M0 switchgear module is a hybrid of ABB’s traditional air insulated (AIS) and SF6 metal-clad gas insulated (GIS) switchgear units. It integrates all the necessary substation switchgear bay functions, including a circuit breaker, one or more combined disconnector/earthing switches, bushings for connection to single or double busbar systems and a current transformer in one compact module, eliminating the need for separate pieces of equipment for each function.

PASS M0 modules are ideally suited for retrofit, extensions or new build substations. The compact design can save up to 70 per cent of the space required for the construction of a conventional AIS substation. In addition the PASS M0 provides fast and simple installation – typically one day installation time per bay - as well as a major reduction in civil works such as foundations, steelwork and cable trenching operations.

The PASS M0 module is completely pre-fabricated, pre-wired and pre-tested at the factory, and fits into a standard truck container for delivery without any packaging. No special arrangements are needed for shipping and transportation, and once on site just a simple 30° rotation of the outer poles is needed for the final layout.

Maintenance-free design
A key feature of the PASS M0 is its virtually maintenance-free design. The line and busbar disconnectors, as well as the earthing switches, are integrated within the breaking chamber. This gives these components complete immunity from all environmental conditions, thereby ensuring lifelong reliability, and eliminating routine maintenance of high voltage parts. This overcomes a major weakness of AIS substations.
Standard PASS M0 functions include current measurement, current interruption, disconnecting and earthing, all of which can be customised and added to according to customer requirements.

PASS M0 specifications are:
Rated voltage 72.5/123/145/170kV
Rated frequency 50/60Hz
Rated current 2500A
Rated short time withstand current (3s) 40kA
Rated peak withstand current 100kA
Temperature range -30°/+55°C

ABB (www.abb.com) is a leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 103,000 people.

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    PASS M0 concentra tutte le funzioni tipiche di un montante completo AIS in un unico modulo pronto per l'installazione.

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