1. SCS
SERIES
SSC-PTX
Steel Secondary
Containment System
Power & Transmission Transformers
High quality galvanized carbon steel bund & filter valve attachment
Oil & water leak-tight containment system
Steel bunds for larger power or transmission grid transformers
Reduced on site project time & low cost installation
Designs can be scaled for any size of application
Modular construction for efficient transportation & installation
Accepts SFT HRC-80 hydrocarbon/sediment cartridge filters
SFT HRC-80 filter discharges water to PPG3 guidelines
Containment Fire Suppression System Option
The SCS series of steel secondary containment systems offer owner/operators
of oil filled transformers an extremely cost effective and practical solution in
providing oil containment for larger power or transmission grid transformers
and delivers true execution of CSR obligations with an appropriate balance
between project expenditure and protection of the environment.
Traditional concrete based containment systems are expensive and require lengthy on-site
construction times. The SSC-PTX system is designed on a modular basis facilitating the
system being partially assembled at our factory and delivered to site in sections which are
connected together hydraulically during the final assembly process. This modular concept
significantly reduces the necessary on-site assembly time and we can achieve a 30 to 50%
reduction of project construction times to comparable masonry solutions.
Our carbon steel containment systems are manufactured to the highest fabrication
standards typically using 5mm carbon steel grit blasted with a 85µm galvanised finish giving
a 30-year life for external applications. The containment retention integrity is fully tested
using a NDT liquid penetrant of magnetic particle inspection, self certified with a PCN Level
2 certificate prior to leaving our factory. Utilising resistance seam welding joints to BS EN ISO
5817: 2014, Quality Level B which fuses the sheet metal surfaces together at the highest
possible quality level to produce a continuous leak-tight seam.
Individual containment design size and shape is dependent on the type of transformer I.E.
number and position of the cooling radiators, cable approach (above or below ground)
and connection point; the Capture Green secondary containment system delivers
complete flexibility which embraces all the necessary design challenges and provides a
fully engineered manufactured solution delivered to site in a short period.

2. SCS
SERIES
SSC-PTX
Steel Secondary
Containment System
Power & Transmission Transformers
The Stables Gattinetts Hadleigh Road East Bergholt Colchester Essex CO7 6QT
e: info@capturegreen.com t: +44 (0)1206 299388 w: capturegreen.com
Capture Green reserves the right to change or update, without notice, any technical
information contained in this datasheet. Capture Green also reserves the right, without
notice, to change the design or construction of the product and to discontinue
SDS: SCS SSC-PTX Nov 16
The transformer sits directly onto steel universal I beams located inside the containment
area, which is supplied with M16 shoulder eye bolts (630kg vertical lift capacity). All
containment systems are supplied with an isolation discharge valve with a 1½” or 2” BSP
thread to accept the SFT HRC-80 type 1 or 2 hydrocarbon/sediment cartridge filters.
The SSC-PTX system requires a suitably reinforced concrete flat base and comes with an
earthing/grounding flexible copper braid connection to ensure optimum electrical
conductivity. Acoustic noise and vibration pollution dampers are utilised where necessary
to enable the installation to be as non-intrusive as possible to the local community.
Containment Fire Suppression
A containment flame suppression perforated grating system (option) is designed to starve
and restrict the fires available oxygen and suppress any ignited oil inside the containment.
Dielectric fluid flowing from the transformer tank will flow freely into the containment area
below through the grating at a rate of 600l/min per 1m² surface area. The perforation
hole size of 7mm covers approximately 4.1% of the total grating surface area and
prevents larger burning items from entering the containment area and therefore coming
into contact with the escaped transformer dielectric fluid.
Environmentally Sensitive (ESA) & Flood Risk Areas
The SSC-PTX secondary containment system is ideal for ESA or close to controlled water
course electrical installations where situating oil filled transformers is normally a major risk
without containing the equipment. The utilisation of a SCC-PTX system and HRC-80
hydrocarbon/sediment filter provide the perfect solution for grid transformers located in
sensitive areas and protecting the environment
SSC containment systems can be installed at an elevated height to remove the electrical
asset from danger of flooding and further aid flood defence policies and maintain crucial
electricity supply continuity.
SSC Specials & Bespoke Systems
Capture Green offers a custom design service to develop and manufacture steel
secondary containment systems to accommodate any size or shape of containment for
oil filled electrical equipment, such as transformers (auto, earthing, distribution, power),
MV switchgear, inductance coils, capacitors, etc.
Containment Capacity
Secondary containment systems must have a 110% minimum volume capacity of the
equipment's oil volume; in certain circumstances this volume capacity needs to be
increased to create a larger ‘freeboard’ area within the containment system.
Service Levels
We undertake supply only, supply & supervise install or turnkey solutions.