Skip Navigation View Sitemap

Test fieldReliable test results from our test facilities

In order to guarantee a high product quality, all our products of Frerk Aggregatebau GmbH are tested in our in-house test field. The equipment is tested in state-of-the-art testing facilities, under low and medium voltage conditions to ensure the high quality of our products.

Before each installation, each of our products goes through the test according to the defined specifications. The test is supervised and performed by our authorized and qualified personnel. All results are registered.

Reliable test results
From our test fields

We at Frerk test diesel and gas gensets with low and medium voltage at the nine aggregate test areas both indoors and outdoors. ISO 8528. The test facilities allow the testing of individual systems in island or grid parallel operation up to 6 MW at a maximum of 15 kV. Tests can also be carried out with inductive loads up to 3000 kVA. Furthermore, we realize every individual customer request with regard to electrical power, voltage and the required test regulations.

Collection of facts, test field

  • 8 indoor testing stations
  • Outdoor testing stations for large systems
  • 3 dry load resistors with 1 - 2,4 MW
  • 5 adjustable water resistances with 1,5 MW each
  • 2 inductive load banks up to 3 MVA with a power factor of 0,8
  • Capacitive load bank 1500kVAr
  • Load devices can be coupled for testing with loads up to 12 MW
  • Possibility for mains parallel operation and isolated parallel operation of several units
  • Adjustable test field cooler for testing systems without a built-in cooling system
  • Testing device for simulating the customer heating circuit for testing CHP units heat modules
  • Transformers and engine protection switches for testing generators with medium voltage up to 15 kV
  • Controlled ventilation to reach ambient temperatures of up to 55 °C
  • Measurement and analysis of mechanical oscillations and vibrations
  • Sound measurement of the complete system as well as individual system areas
  • Measurement of fuel consumption
  • Check of heat development in switchgear, connection points, pipelines and other customer requests using a thermal imaging camera
  • Air velocity and volume flow measurement of the designed ventilation technology
  • Shaft alignment using a laser alignment device
  • Examination of the illuminance inside/outside the manufactured system
  • EMC testing of the entire container system
  • Diverse measuring equipment for measuring electrical and non-electrical quantities
  • Electronic recording of electrical quantities during dynamic processes such as load connection, load shedding and run-up tests
  • Data logging system for the simultaneous recording of different measured variables with variable recording intervals


  • Testing of generator systems with complete accessories and, if necessary, higher-level central controls, power units, NSHV, MSHV
  • Carrying out special tests if these cannot be carried out at the OEM
  • Complete system structure including accessories and auxiliary drives in the test field
  • Possibility to carry out long-term tests and type tests according to customer requirements
  • Special premises for customers and personnel for inspection and approval during the test runs
  • Possibility of camera-supported remote factory acceptance
  • Tests and acceptances may be certified by independent testing institutes (e.g. TÜV, GL, DNV, ...)

Do you have any questions about the test field of our products of Frerk Aggregatebau GmbH? Call us or contact us via contact form

Back to top