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MV SWITCHGEAR

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By integrating cutting-edge technology from renowned component manufacturers like ABB, Schneider, and Siemens, we are able to provide MV Switchgear packages that can be used independently or seamlessly integrated with our LV product offerings. This approach eliminates any coordination issues that may arise from working with multiple suppliers, ensuring the highest level of quality throughout the entire project.


MV Switchgear

We provide impartial advice and consultancy on HV solutions, ensuring the most competitive and suitable options based on individual requirements, deadlines, and budgets.

All wiring, protection relays, and testing is carried out in-house in our Switchgear manufacturing unit, guaranteeing quality control before completing on-site installation, testing, and commissioning by our dedicated engineers.

Safe, high-quality switchgear

We understand the importance of safety, quality and efficiency within critical power applications. Which is why we ensure all of our switchgear is sourced from reputable suppliers, offering a solution that guarantees optimal safety and performance levels throughout its operation.

Our team are well equipped to offer guidance and information on the latest technology available for your MV switchgear, whether that’s arc flash containment systems or Infra-red thermographic windows.

Features & Options

  • Fully type tested enclosure system
  • All forms of separation
  • Front & rear access designs suitable for top & bottom entry cables
  • Standard paint finish (RAL 7032 - Light Grey) with all other RAL & BS colours available on request
  • Fixed & withdrawable equipment
  • Interlocking systems for preventive switching errors
  • Panel maintenance from our expert engineering team available

Package Substations

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Package Substations manufactured to the same high standard as our switchboards offering a complete MV/LV package which can also incorporate MV switchgear either standalone or close-coupled to the LV Equipment for installation within plant rooms or our purpose-made containerised solutions.

  • MV Incomer options of ring main units (RMU)
  • Incorporating cast resin transformers up to 4MVA
  • Air-cooled or force ventilated to increase output by up to 40%
  • Fully type tested assemblies to BE EN 61439-2
  • All transformers to the latest EU high energy efficiency directive EN 50541-1
  • MV cable options top or bottom
  • Voltages up to 33kV
  • Ingress protection to IP2X
  • Transformer housing Castell interlocked
  • Reduced footprint design
  • Maintenance access

Package Substations Features and Options:

  • Ingress protection ratings up to IP3X
  • Transformers with either copper or aluminium windings
  • Transformers from all the main manufactures including ABB, Schneider and Siemens plus other manufacturers ranges
  • Routine full-factory witness testing
  • Full-heat rise testing available in dedicated enclosures

Package Substation Benefits

A package substation usually consists of a cast resin transformer that is directly connected to a high voltage network (HV) on the primary side and then directly connected to the LV Main Switchboard from the secondary low voltage (LV) side. The HV supply can come from either a site-owned HV circuit or HV ring which can connect to the primary side of the transformer via a HV rated cable connection box, HV Switch, Circuit Breaker or Ring Main Unit (RMU).

Package Substations are an efficient option to select when a large amount of power is required to feed a site with distributed LV especially when the customer site has access to a suitably rated high voltage power supply. This high voltage power supply is usually fed from a Distribution Network Operator (DNO) owned and operated sub-station or as stated above a site-owned HV Network, depending on the situation.

A Package Substation is a fully integrated close-coupled system, which can save time, space and money when compared to a de-coupled system. The connections from a remote transformer may require a lengthy cable or bus bar runs to reach the LV Switchboard, which can be expensive. Situating a cast resin transformer directly next to a suitably rated switchboard might be an attractive option.

The major benefits of a Package Substation from DCC Switchgear are listed below:

Both the transformer and the Main LV Switchboard can be purchased through the company, saving time and effort

Customers can either choose their own transformer manufacturer or the company can choose from a select group of DCC Switchgear trusted suppliers

DCC Switchgear own and operates its own in-house Fabrications and Paint Plant, meaning the company can design and build transformer housings complete with natural ventilation and forced ventilation systems. Also available are safety door access systems.

If the package is to be situated outside of a building, DCC Switchgear can supply secure GRP and weather-proof type enclosures for this very purpose

The transformer can be directly coupled to the LV Switchgear system via copper bus bars which is a more economical alternative to cabling, especially on larger systems

The operation of a Package Substation can be witness tested at an DCC Switchgear site i.e. in a controlled factory environment booked via a Factory Acceptance Test (FAT) Customers can purchase cast resin transformers up to 4MVA