Testing Service

As accredited testing laboratories, we have been testing electrotechnical components for Siemens and Siemens Energy and external customers for over 90 years. We guarantee the impartiality and independence of all the tests we conduct for high and medium voltage. With our high level of technical expertise, we additionally offer tests for areas such as wind power and aviation as well as plant engineering and machine building. Thanks to our wide-ranging test portfolio, we are able to test materials of all kinds.

Development and specification of test configurations for required special tests

Research of parameters of insulation design
Testing of combined insulation arrangements
Verification & improvement of transformer design
Development of new testing and measurement technologies (e.g. PD measurement for transient voltages
Investigation & testing of Very Fast Transient-stresses (VFT) of insulation systems
High current investigations

Measurements acc. IEC, IEEE, ASTM, internal standards with existing, standardized arrangements

Quality check of solid insulation material acc. standards
Development of new materials
Release and development of new supplier
Electrical strength of solid insulation Materials (AC / DC / LI / SI)
Dielectric properties of solid insulation Materials (εr, Κ, tanδ)
Individual basic research investigations

400 kV AC test system with 200 kVA (50 Hz) 1
50 kV AC test system (50 Hz)
Impulse generator with 1,200 kV charging voltage for lightning (1.2/50 μs) and switching impulse voltages (250/2,500 μs)
Multiple chopping gap for chopped impulse voltages, e.g. for measurements according to IEC 60076-3
400 kV DC test system, automatically pole-reversible (for measurements according to IEC 61378-2)
Screened high-voltage laboratory, background noise level < 1 pC
Crane capability 1 t
Air cushion system up to 7.5 t

Screened measuring cell, background noise level ≤ 1 pC
High-voltage module (AC 100 kV/DC 140 kV/LI 140 kV) PDC measurement system for conductivity investigations of individual materials or components
Precision high-voltage system device, 60 kV (electrically pole-reversible)
Fully air-conditioned measuring cell, temperature range –40 °C to +180 °C, ambient humidity 10% to 98% rH
Measuring cell to determine dielectric parameters of solid and liquid insulation materials (tan δ, capacity, dielectric constant)

Oil preparation unit (300–700 l/h), which can also be used for other liquids
Vacuum drying cabinets Special vacuum impregnation chambers
Determination of the water content of liquid and solid insulation materials (Karl Fischer titrator)
Determination of oil puncture voltage according to IEC 60156
Workplace for hazardous materials
Workshop for test piece preparation and modification of test designs


Electric breakdown strength of insulation materials (AC Voltage)	IEC 60243-1
Electric breakdown strength of insulation materials (DC Voltage)	IEC 60243-2
Measurements of the specific resistance	IEC 60093
Dielectric properties of solid and insulation fluids	IEC 60247
Electric breakdown voltage of insulation fluids	IEC 60156
Water content of solid and insulation fluids	IEC 60814
Multiple chopping gap for chopped impulse voltages	IEC 60076-3
Dissolved Gas Analysis	IEC 60567
Analysis of key parameters	IEC 60422
Analysis of Furane	IEC 61198
Investigation on PCB content	EN 12766-2

Testing Services

With a high degree of expertise, decades of testing experience, and a powerful, wide-ranging testing portfolio, we ensure the product quality of power engineering equipment through type and development tests.

Laboratory Berlin

Laboratory Nuremberg

Testing Laboratory Berlin

Testing opportunities, accreditation and standards

Testing Laboratory Nuremberg

Testing Opportunities

Technical Details

Excerpt of standards

Contact us further information

Testing Services

With a high degree of expertise, decades of testing experience, and a powerful, wide-ranging testing portfolio, we ensure the product quality of power engineering equipment through type and development tests.

Laboratory Berlin

Laboratory Nuremberg

Testing Laboratory Berlin

Testing opportunities, accreditation and standards

Testing Laboratory Nuremberg

Testing Opportunities

Research and Development of new testing technologies

Testing of insulation liquids​

Customized individual testing solutions

Testing of solid insulation material

Process technology and sample preparation

Technical Details

High-voltage laboratory

Air-conditioned test cell

Process technology

Excerpt of standards

Contact us further information