Special installation with high voltage disconnectors for ČEZ Distribuce

Plzeň, Czech Republic, October 2021 R&S SERW will deliver sixteen high voltage horizontal disconnectors according to special, non-standard requirements of the customer. All disconnectors will be delivered and installed at the substation Ostrava Mariánské Hory in the Czech Republic for ČEZ Distribuce a.s., the biggest distribution system national operator.

The scope of the order includes the installation of the 123 kV horizontal disconnectors on a wall of the substation. Special accessories (control rods, distribution and levers) must be designed. It is a design tailored for the needs of the a non-standard installation.

The standard disconnectors must be updated and arranged for the installation where the drives are below the disconnectors connected with the accessories tailored according to the special installation on the wall.

Some specifications of the project:

  • Product: 16 pcs 123 kV, 2000 A, 40 kA 3-phase horizontal disconnectors with motor drives
  • Scope of work at the site: adjustment and putting into service
  • Installation site: substation Ostrava Mariánské Hory, Czech Republic
  • Ordered: Q3 2021
  • Scheduled delivery: Q1 2022
  • Project volume: 3.175.960 CZK

The key factor for the proper implementation of the project was involvement during the design process of all three parts – designer, R&S SERW as the supplier, and ČEZ Distribuce as the end user. Especially close cooperation between the designer of the project and R&S SERW technical department was necessary.

About ČEZ
The Czech-based ČEZ Group is one of the largest energy companies in Europe. The company is responsible for the generation, distribution, trading, and sale of electricity and heat; trading and sale of natural gas; provision of comprehensive energy services from the new energy sector, and coal mining. With more than 8 million customers and over 32,000 employees, the company operates in western, central, and south-eastern Europe.

About R&S SERW
R&S SERW is part of the Swiss-based R&S Group, a leading provider of electrical infrastructure products in key markets. Founded in 1993 from the Skoda factory, R&S SERW has developed into one of the leading switching device manufacturers in Europe. Thanks to many years of experience in the field of power products with a focus on switching devices, R&S SERW is a competent and reliable partner for customers all over the world.

  • high voltage horizontal disconnector
  • high voltage horizontal disconnectors
  • high voltage horizontal disconnector-installed