Compact Secondary
Substation (CSS)

Smart · Compact · Zero Maintenance


  • High safety design provides safety to equipment, personnel and environment.
  • Complete factory-delivered solution with only external connection to be done at site, resulting in significantly reduced installation time.
  • Increased corroision resistance
  • Lightweight, optimized transportation allow for ease of installation
  • Enhanced operational efficiency and network stability
  • Less need to travel to locations with difficult access
compact-secondary-substation-transweld

The Compact Secondary Substation market was created when distribution utilities started to move from overhead to underground power lines. With cables underground, the traditional, large step-down substation (with its overhead lines) became impractical. Customers now require a compact piece of equipment that could be intalled quickly with a minimum amount of site work, but still providing the same functionality as an overhead line substation. Substation enclosure design, layout, material and appearance have always been in constant development to provide continuous power in a safe and optimized way. The Transweld CSS design has been tested to the highest safety standards in IEC ranges for CSS applications, which ensures that it provides highest level of safety for the public and operating personnel.

The supply of electricity to rural locations is a challenge to utilities. Our CSS makes it easier to supply, due to its robustness and light weight. Onsite installation and material handling efforts are also minimal. Additionally, the CSS is easier to transport over longer distances and requires less lifting effort. In addition, the smarter networks now being installed around the globe can be controlled and monitored remotely, so CSS units are visited less often and this reinforces requirement of the equipment being as maintenance free as possible. These features all reduce the maintenance effort and cost for the utility.


Ecotap® VPD®

On-Load Tap-Changer with VACCUM

Compact, reliable, and maintenance free: With the superior vacuum technology for on-load tap-changers from Maschinenfabrik Reinhausen (MR), distribution transformers can now be regulated. They maintain a constant voltage in public, industrial, and private distribution grids by compensating for fluctuations in the medium and, if necessary, high-voltage levels and responding dynamically to changes in the feed-in and demand at the low-voltage level.

Eco Green Distribution Transformers

Hermetically Sealed · Ester Oil Filled

Ester Oil Transformers are designed as an eco-friendly and high-safety alternative to conventional mineral oil-filled transformers. Using natural or synthetic ester fluids as insulating and cooling media, these transformers offer superior fire safety, extended insulation life, and reduced environmental impact — making them ideal for installations in sensitive or high-risk environments such as urban areas, commercial buildings, renewable energy projects, and industrial plants.

Advantages

  • Fire safe and environment friendly
  • Capable to take continuous overloading due to K Thermal Class Insulation
  • Enhances insulation life and hence, operational life of transformer
  • Dielectric fluid with high flash and fire point i.e. above 300°C
  • Natural Ester oil biodegradable, non inflammable and non hazardous
  • In compliance with NS and IEC standards

Dry Type VPI Transformer

Dry Vacuum Pressure Impregnated (VPI) transformers are advanced electrical transformers designed to improve insulation and overall performance. The VPI process enhances the transformer's dielectric strength and moisture resistance, making it more reliable. These transformers are made with high-quality copper and silicon steel, ensuring long- lasting performance. The VPI technology helps prevent moisture and air from damaging the insulation, increasing durability and efficiency. These transformers are ideal for applications that require high reliability and minimal maintenance.

Ideal transformer for high reliability and minimal maintenance applications.

Advantages

  • Ensures safety for people and property
  • Requires minimal maintenance and is pollution-free.
  • Easy to install
  • Reduced side clearance needed
  • No fire hazard
  • Strong resistance to short circuit currents
  • Long-lasting with low thermal and dielectric heating
  • Suitable for damp and contaminated areas

Why choose us?

Choose us for high-quality, cost-effective transformers delivered on time to ensure uninterrupted power supply. We offer customized solutions to meet your unique needs while prioritizing sustainability and eco-friendly technology. Committed to safety and industry standards, we aim to build long-term partnerships, providing dedicated support throughout the lifespan of each transformer. Our experienced top-quality team ensures production, backed by skilled professionals and in-house training.

Features

Dry Vacuum Pressure Impregnated (VPI) Transformers are durable and efficient. Silicon steel cores reduce energy losses, and copper windings ensure great conductivity. The VPI process improves strength and moisture resistance, extending lifespan and lowering maintenance. They also offer high power density and space efficiency for various applications.

Applications

  • Chemical, oil and gas industry
  • Environmentally sensitive areas
  • Fire-risk areas (e.g. forests)
  • Inner-city substations
  • Indoor and underground substations
  • Renewable generation.

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