OXTED TRANSFORMER RECTIFIER UNIT RENEWAL

PROJECT SCOPE AND DELIVERY
As part of the Transformer Rectifier Unit Renewal at Oxted Substation, a solution was developed for the narrow site which included the required equipment, cabling and a trackside walkway. The solution took into account existing obstructions including the substation earth, varying ground profile and existing exclusion zones.
The Transformers houses up to 3000 ltrs of oil. As part of the renewals consideration for environmental legislation and sustainability required that secondary containment be provided. To aid the construction programme, a solution to use a prefabricated metallic bund was reviewed with the client. Several reviews of filter systems for the protection against contamination were reviewed. The metallic bund can simply be placed on a flat concrete slab and can be lifted into place on same shift as the transformer. This removes the requirement for complex steel reinforced bunds, difficult concrete shuttering and steel rainwater shelters traditionally needed with concrete bunds.
AJMS delivered the works on time and on budget including additional requirements identified during the projects design process and RAM desires. Oxted was the first to make use of prefabricated bunds and filter system, offering a sustainable and cost effective solution. This solution is being championed on other sites at this time.