TRT-W one-piece welded hot-dip galvanised steel troughs adjustable beams in width direction

Sanergrid TRT containment bund for oil-filled transformers, welded and hot-dip galvanized, with two watertight bulkhead fittings and stainless steel plugs, one ready for an SPI® PETRO-PIT® kit.

TRT W trough Set of 2 support beams for widthwise extension and safety trap

One-piece steel tanks with welded fronts SANERGRID stock

TRT-W drip tray with drain, filter and siphon plugs and width-adjustable riser beam

TRT-W drip tray compliant with electrical installation standards NF-C13-100 NF-C13-200 NF-EN-61936

SPI PETRO-PIT® PIT-410 kit installed on a Sanergrid TRT-W hot-dip galvanized steel containment bund, for drainage and filtration of water contaminated with dielectric oils in photovoltaic and outdoor containment applications.

TRT-W – Welded containment bund with width-adjustable support beams

Name: TRT-W – Welded containment bund with width-adjustable support beams
Brand: Sanergrid
SKU: TRT-W
Availability: InStock

0,00 €

Galvanised steel tank for electrical transformer

The TRT^®-W range comprises 14 standardised, hot-dip galvanised, one-piece drip trays with welded fronts, fitted with width-adjustable support beams. SANERGRID^®‘s TRT-W range is designed to meet the regulatory, technical and environmental requirements for indoor and outdoor live oil-filled transformers from 160 kVA to 20 MVA.

Description

Sanergrid TRT®-W hot-dip galvanized welded containment bund for oil-filled transformers

The Sanergrid TRT®-W containment bund is a robust, welded and hot-dip galvanized solution designed for the containment of dielectric oil from oil-filled electrical transformers, for both indoor and outdoor installations.

Manufactured from S235 steel with a thickness of 3 or 4 mm, approximately 0.12 or 0.16 in, the TRT®-W bund combines hot-dip galvanized steel with double watertight welds on all containment areas, supported by individual quality inspection before leaving the factory.

Each bund is fitted with width-adjustable support beams to easily adapt the transformer position to its wheelbase or support spacing, while keeping it above any residual water that may remain at the bottom of the bund during outdoor use.

At the lower part of the bund, two watertight bulkhead fittings with stainless steel plugs are provided: one for draining the bund, and the second for installing a SPI® PETRO-PIT® 410 filtration kit, designed for the drainage and filtration of rainwater contaminated with hydrocarbons and dielectric oils.

A safety overflow siphon is integrated in the upper section of the bund to discharge excess water in case of heavy rainfall or filter blockage, while keeping the retained oil inside the containment bund.

Reliable, durable and highly versatile, the Sanergrid TRT® range is suitable for new electrical substations, substation renovation projects, transformer storage, and live oil-filled transformer installations.

Metal containment bund for oil-filled transformers
Hot-dip galvanized steel for long-lasting corrosion protection
Adjustable support beams to match transformer spacing
Watertight bulkhead fittings with stainless steel plugs
SPI® PETRO-PIT® ready for filtered rainwater drainage
Safety overflow siphon for excess water discharge without oil release

To improve rainwater management and environmental safety, the TRT®-W bund can be combined with SPI® anti-hydrocarbon filters distributed by Sanergrid, designed for passive and secure drainage of contaminated water.

Accessories and options

TRT®-W hot-dip galvanized welded containment bunds for oil-filled transformers

The TRT®-W Sanergrid containment bund range includes 14 standard one-piece welded bunds, designed for the safe containment of dielectric oil from oil-filled electrical transformers rated from 160 kVA to 20 MVA. Each bund is selected according to the transformer footprint, oil volume and indoor or outdoor installation requirements. For accurate sizing, please contact Sanergrid with your transformer dimensions.

Manufactured from S235 steel with a thickness of 3 or 4 mm, approximately 0.12 or 0.16 in, the TRT®-W range combines hot-dip galvanized steel, double watertight welds and individual factory quality inspection. This robust design makes TRT®-W a reliable solution for indoor substations, outdoor transformer yards, temporary storage and live oil-filled transformer installations.

Each TRT®-W bund is equipped with width-adjustable support beams to match the transformer wheelbase or support spacing. The transformer is kept above the residual water level, improving outdoor operation and simplifying rainwater management.

For outdoor installations, the bund can be fitted with an SPI® PETRO-PIT® 410 filtration kit for continuous rainwater drainage and filtration of water contaminated by hydrocarbons or dielectric oils. The system is based on the PETRO-PIT® 410 hydrocarbon filter cartridge, also available through Technikelec®.

TRT® configurations for every transformer installation

Depending on the site layout, transformer access constraints, cable entry configuration and fire risk management requirements, the TRT® range can be adapted in several versions:

TRT-P-F-W and TRT-P-F-L ranges with fixed beams when the transformer centre distance is already known.
TRT-AUX range with access grating for safe operation around the transformer, control cabinet, DGPT2, auxiliary equipment or RIS2 oil transformer protection relay.
TRT-H range for installations with rising vertical cable ducts on both HV and LV sides.
TRT-U range for installations with rising vertical cable ducts on either the HV or LV side.
TRT-SKID range for photovoltaic skids, designed to integrate the containment bund between the skid and the oil-filled transformer.
TRT®-MODULO range for large transformers exceeding the standard European transport width of 2,500 mm, approximately 98.4 in. Several bund modules can be connected in 2, 3, 4, 5 or N modules using the SNG-Flow™ system.
EXTICOV-LHD® fire-suffocating grating covers can be integrated into TRT-LHD and TRT-LHD-MODULO containment bunds to combine transformer oil retention, passive fire suffocation and safe walking access around the installation.
TRT-SP range for special projects requiring roll-on transformer access, rail integration, transformer movement on the bund or bespoke geometries.

Accessories and options for TRT® containment bunds

The TRT® range can be completed with dedicated Sanergrid and Technikelec accessories to improve environmental safety, mechanical stability, earthing continuity and long-term corrosion protection.

SPI® PETRO-PIT® 410 filtration kit for passive rainwater drainage and hydrocarbon filtration on outdoor transformer containment bunds. The kit is designed to install the PETRO-PIT® 410 hydrocarbon filter cartridge and its PFC-44 pre-filter on metallic retention tanks. Also available from Technikelec® PETRO-PIT® filtration sets.
SANERVIB anti-vibration pads to reduce transformer vibration and structure-borne noise.
GALVAGRID® TANK™ C5H anti-corrosion treatment for reinforced galvanic protection of metallic containment bunds in aggressive or saline environments.
MALT flexible earthing braids to ensure equipotential bonding of gratings, metallic parts and transformer accessories. Also available from Technikelec® MALT earthing braids.
SANERBLOCK™ wheel locking brackets to secure transformer wheels and prevent unwanted movement. Also available from Technikelec® SANERBLOCK™ brackets.
Lifting hooks, grating earthing and custom accessories available on request depending on project constraints and site configuration.

With its welded construction, hot-dip galvanized finish, adjustable support beams and wide range of accessories, the TRT® Sanergrid range is a market-proven solution for transformer oil containment, rainwater drainage and environmental protection in electrical substations.

Technical data

Additional information

Conditions of use	indoor, outside
Fronts	Welded
Material	steel
Beams	Adjustable, Lengthwise, Widthwise
Fire resistance	YES

Use and maintenance

Before installing the tank:

Make sure that the ground surface is smooth, flat, clean and, above all, large enough to support the weight of the transformer and the TRT^® tank.
Check that the positioning of the load pick-ups from the floor to the tray is appropriate, aligned and correctly dimensioned.
If the tanks are stored outside, they must be emptied regularly, and not handled with water inside.

Installing the tank:

The tray must be unloaded using suitable handling equipment. Once installed in the final position, fix the support beams, adjusting the centre-to-centre distance so that the transformer is centred on the supports of the TRT^® trough.

Installation by crane :

Place the transformer on the beams of the trough, taking care not to obstruct the rainwater drainage holes. Avoid vertical acceleration or transverse shearing.

Maintenance:

Regular visual inspection of the equipment should cover the following points:

Tightness at wall penetrations, accessories and/or plugs correctly screwed in.
Integrity of the tank walls, no deformation or damage (knocks, impacts, rust, etc.).
State of ageing of the hot-dip galvanising protective layer and potential touch-ups.
Check that rainwater is flowing properly through the filters: if they are clogged, clean the pre-filters, or change the filters if they are saturated or have exceeded their recommended service life.
The frequency of these checks depends on the constraints of each site, depending on its degree of corrosion, dirtiness, presence of organic matter, etc.

Please refer to the user manual for further details. Failure to follow good operating practices and to deal with anomalies and defects in the field are the responsibility of the owner of the equipment.

Additional information

Our bins are in line with EU Regulation No 548/2014 also known as ECODESIGN on the implementation of Directive 2009/125/EC which sets out ecodesign requirements for the placing on the market or putting into service of transformers with a power rating of at least 1 kVA used in 50 Hz electricity transmission and distribution networks or for industrial applications. Called ECODESIGN Tiers 1 (2015) and ECODESIGN Tiers 2 (2021).

Our standard range of SANERGRID TRT tanks complies with French, European and international standards and recommendations on the retention of dielectric fluids, fire risk management, the management of pollutants and rainwater in high-voltage substations and the protection of people and property.

French standards NF C13-100 and NF C13-200 prevent electrical risks, overcurrents, earthing problems, fire risks, short circuits and lightning, as well as soil and environmental pollution.
Standard NF EN 61936-1, relating to the design and installation of electrical installations, which requires watertight retention representing 100% of the volume of oil used, and provides the necessary indications for pre-dimensioning retention volumes and surfaces, fire safety distances and systems, and rainwater management associated with the outdoor storage of hydrocarbons.
CIGRE 23-07 and IEEE 980 recommendations concerning the use of fireproof covers for transformer pits and tanks, as well as guidance on the pre-sizing of indoor and outdoor retention tanks and pits.
Our bunds are designed and manufactured in accordance with the European norms and standards of EUROCODE 3 (Calculation of steel structures).
Our manufacturing plants are certified ISO 9001 for their quality management process and IS0 14001 for their environmental management process, and are all based in Europe to encourage short supply chains and limit carbon emissions.
Our French and European sites enable us to guarantee that all our steel comes from European production, which is made up of over 50% recycled steel in order to limit the over-exploitation of resources and limit the carbon emissions linked to our manufacturing activities SANERGRID.
Rainwater drainage and hydrocarbon pollution when used outdoors:

Thanks to the SPI anti-hydrocarbon water filter system, the tank is empty of water most of the time and ready to receive hydrocarbons. In compliance with the French Water Act (decree 77-254), the water discharged from the tanks is not contaminated with more than 5 ppm of hydrocarbons, in accordance with standard EN 858-1 (“light liquid separation installations”).
SPI^®filters are regularly tested by independent laboratories: SANERGRID Bureau Veritas COFRAC I.D. certified report: 003606/2776443/1/1/1 in 2015 (France), SPI Phoenix I.D. laboratory reports: AR67044 from 2002, 2004, 2005, 2009, 2018, 2022 (USA), TÜV report Nr 2432974 in 2016 (Germany), NUA -Z-11895-1/1-2016 report. (Non-exhaustive list)