FATs (Factory Acceptance Tests) during the Covid–19 pandemic – R&S SERW

Plzeň, Czech Republic, March 2021 – Tough times, new ideas – you could state that about the methods of running obligatory final tests, before R&S products reach the customer.

Some time ago, we reported about online FATs at the power transformers’ factory, R&S ZREW. Today, we take a look at R&S SERW and FATs performed for one of the company’s key customers – ČEPS.

First way of doing tests, the on-line FAT (project Havlíčkův Brod Mírovka) was presented, when 4 technicians of ČEPS were watching on-line in real time (a video conference) the routine test of the 420 kV pantograph disconnector. The FAT included a functional test, measuring of the operation times of the disconnector, measuring of decreased/increased motor voltage and measuring of voltage drops.

The second way – the off-line FAT (project Kočín 1) was presented to ČEPS as follows – a complete photo documentation of all prepared devices before an expedition to a substation, along with all required documents (routine test reports, certificate of quality and completeness of the equipment) were sent to be approved by the client.

Tested products:

  • 110 kV, 3150 A, 50 kA/1s horizontal disconnectors
  • 420 kV, 3150 A, 50 kA/1s pantograph disconnectors
  • 123 kV and 420 kV post insulators

“Due to the Covid-19 restrictions, it is necessary to provide FATs, including routine tests with our customers, by other ways. Because of restricted movements and contacts of employees of some strategic companies, such as ČEPS, in our case on-line and off-line FATs have been agreed and ensured” – says Pavel Chaluš, Sales Director at R&S SERW.

About ČEPS
ČEPS is the main Transmission System Operator in the Czech Republic. The company is responsible for the maintenance and upgrade of 43 substations as well as 5,517 km transmission lines.

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.