Prof. Ir. Damstra Laboratory
With a 72 tons, 500MVA, 6.3kV 50Hz generator Damstra Laboratory is able to perform Low Voltage short circuit tests up to 120kA-1s and 65kA-3s at 440V, 100kA at 760V and prospective currents at 1450V. With the medium voltage transformer Damstra Laboratory is able to raise the voltage up to 12kV or 30kV with 2.8 or 1.4 kA-1s short circuit rating. Internal arc testing according to the IEC/TR 61641 can be done at 3 phase up to 100 kA at 690 V for 0.5 s. For medium voltage single phase to earth arc fault currents up to 2.8 kA at 12 kV and 1.4 kA at 24 kV can be generated.
A six-bridge rectifier is available to perform short circuit tests up to 25kA-1s or 50kA prospective short-circuit current at DC voltage levels up to 1900V.
The control system of the Short Circuit lab is equipped with very accurate timers in order to initiate the short circuit shot at any specific point on the sinus wave, ensuring tests to be performed in accordance with a variety of international standards and clients instructions. The unique method for connecting the test object to the test equipment, developed bij Damstra Laboratory, is very efficient and reliable and does not require any modifications on the test object.
Damstra lab has the availability of recording footage with a high speed video camera (up to 1000fps in full resolution (1024x1024) and max 50.000fps at reduced resolution, colour footage). This allows the designer to obtain valuable information that would normally be unavailable e.g. the effects of short circuit current or movement during operation of mechanisms, etc.
The lay-out of the laboratory allows easy access of large objects. In house handling of objects can be done quick and safe due to a 5 tons crane covering the whole short circuit area. A mechanical workshop allows preparation of the test objects.
+31 (0)74 - 246 43 51
7559 SC Hengelo
7550 AA Hengelo
Chamber of Commerce number