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High voltage test on railway vehicles

16/04/2020

Thumb schleich 50kv traintest6

The testing of rail vehicles can be a very exciting matter in the truest sense of the word. Exciting indeed, as test voltage can go up to 30 kV! And of course also coming with a high test current. As a result, high voltage sources with high power are necessary for insulation tests on rail vehicles.

But also the design of the high-voltage tester is rather unusual compared to the normal laboratory routine … who wants to stand directly next to a 30 kV system?
For this obvious reason, and often also for reasons of spacial limitations, a split device is the ideal design for such applications.

The following pictures show impressively how a high-voltage test on rail vehicles can look like.
The test device is divided into two units. The unit in the foreground contains the entire control electronics including voltage adjustment of the high-voltage transformer. The unit behind it consists of the actual high-voltage transformer – supplemented by a cable winding drum and an extendable telescopic column. By means of this telescopic column, the high-voltage test cable is lifted to the roof of the rail vehicle, where it is then clamped to the pantograph. The opposite pole is the entire chassis of the rail vehicle.

Technical details of the application

  • High voltage transformer with 30,000 V ACeff
  • Insulating the transformer with insulating oil
  • Voltage measurement via integrated high voltage divider
  • Test current up to 200 mA

Are your technical requirements different from this application example? No problem. We desing your individual solution. We are completely flexible in terms of test voltage, test current and design.