Prague - CESI

/ Labs / Prague

A Hub of Innovation in Electrical Testing for the Eastern Europe Market

Situated just 15km east of Prague’s vibrant city center, KEMA Labs Prague is a cornerstone in the Czech Republic’s electrical testing landscape. Established in 1953 under the auspices of the Czech Technical University’s Research Institute, this laboratory has grown to become a specialist in testing across a broad spectrum, including low-voltage, medium-voltage, and both high power and high voltage sectors. Marking a significant milestone, the Prague laboratories inaugurated their pioneering synthetic installations and laboratories in 1964, a move that has since established them as a central hub of electrical testing innovation and expertise.

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Power Source for High-Power Laboratory

Short-Circuit Generators

Two units, each with a capacity of 2500 MVA

Power Specifications

Capable of delivering 5000 MVA at 120 kV and 280 kA for 2.5 seconds

Frequency

Operates at 50 Hz and DC

Test Bays

MV Apparatus: Equipped with six test bays
HV Apparatus: Includes three open-air areas for high voltage testing

Testing Capabilities

Short-Circuit Tests: On MV and HV components up to 550 kAp
Load-Break Switches: Testing up to 36 kV
MV Fuses: Breaking capacity tests up to 40 kA/40.5 kV
Switchgears and Substations: Internal arcing tests up to 72 kA
Insulator Sets: Power arc tests up to 63 kA
Arresters and Transformers: Short-circuit tests on arrestors up to 63 kA and power transformers up to 40 MVA 3-phase
DC and LV Tests: Ranging from 2 kV up to 80 kA and 4 kV up to 40 kA for DC; up to 150 kA for LV tests

Special Installations

Dedicated to testing of insulator sets and HV disconnectors, including both horizontal and pantograph types

High Voltage Laboratory

Testing Capabilities: The high-voltage laboratory is adept at testing LV and MV components for a variety of tests, including dielectric, temperature rise, mechanical, IP, noise, and others
Equipment: Features AC sources up to 100 kV, LI up to 380 kV (20 kJ), and temperature-rise test transformers up to 20 kA 3-phase and 40 kA 1-phase at 50 Hz
Specialization: Focused on low voltage power panels, distribution transformers, and fuses

For info

First Name*
Last Name*
Email*
Phone*
Country*
Company*
Product Interest*
Please include any specific questions
Consent*
I read and understood the current information notice available at the link https://cesi.it/privacy-policy/ about the above mentioned purpose concerning marketing activities carried out by CESI Spa*
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