Development and manufacturing of partial discharge monitoring systems and sensors for power transformers and electrical equipment.
BSS Hochspannungstechnik GmbH
Sindelfingen · StuttgartNew on Amplifa
About BSS High Voltage Technology
BSS Hochspannungstechnik GmbH develops and produces partial discharge monitoring systems, UHF sensor technology, calibrators, and individual measuring technology for power transformers, gas-insulated switchgear (GIS), and other electrical energy supply equipment. The product portfolio includes multisensor monitoring systems (PDM-600, PDM-600-Mobile, PDM-80), UHF sensors for retrofitting oil separators, electrical sensors according to IEC 60270, acoustic sensors, as well as signal generators and accessories. In addition to product manufacturing, the company offers diagnostic TE measurements and TE localization in the test field and on site, consulting, training, and the development of customized measurement chains from sensor technology to cloud applications. BSS was founded in 2013 as a spin-off from the Institute for Energy Transmission and High Voltage Technology (IEH) at the University of Stuttgart and maintains this scientific exchange to this day. Development and manufacturing take place in the Stuttgart region; the final assembly of every device is carried out manually with individual end-of-line testing. Customers include power suppliers, grid operators, municipal utilities, industrial companies, and transformer manufacturers worldwide.
- Site
- Sindelfingen
- Processes
- Development and manufacturing of partial discharge monitoring systems and sensors (PDM-600,, Electrical TE measurement according to IEC 60270 (charge-based, pC), UHF Partial Discharge Measurement (electromagnetic, 300 MHz – 3 GHz), Acoustic TE measurement (ultrasound, piezoelectric sensors), TE localization on transformers and GIS (runtime measurement UHF/acoustic, test field and onsite), TE measurement with current clamps (HFCT) on cables; TE measurement on MS switchgear with TEV, Vibration monitoring of power transformers; Measurement of parasitic DC currents in, Power quality measurement (PQM-800, 8 channels, 1 MS/s, harmonics up to 500 kHz, up to 4 TB)
- Materials
- UHF Partial Discharge Measurement (300 MHz – 3 GHz), Electrical TE Measurement (charge-based, pC), Acoustic TE Measurement (Ultrasound), Transient Earth Voltage (TEV) Measurement, TE Measurement with High-Frequency Current Clamps, Power Quality Measurement (PQM-800), DC Point Current Measurement, Vibration Monitoring
- Certificates
- ISO 9001:2015
- Founded
- 2013
- Industries
- Energy Supply, Grid Operators, Municipal Utilities, Industry, Transformer Manufacturers, Energy Supply Companies
- 01
Research & Development (Sensor Technology, Electronics, Software)
- 02
Development of custom measurement technology
- 03
Manufacturing & manual final assembly
- 04
End-of-Line-Testing of every device
- 05
Sales and Support (Diagnostic measurements, training, monitoring operation)
Measurement Technology & Procedures
UHF Partial Discharge Measurement (300 MHz – 3 GHz)
Electromagnetic TE detection with high interference immunity, installed via oil separators or dielectric windows.
Electrical TE Measurement (charge-based, pC)
Established industry standard for test field measurements and Factory Acceptance Tests via the test connection terminal.
Acoustic TE Measurement (Ultrasound)
Non-intrusive detection with piezoelectric sensors on the tank, suitable for TE localization.
Transient Earth Voltage (TEV) Measurement
TE measurement on MS switchgear without electrical connection to the equipment.
TE Measurement with High-Frequency Current Clamps
Partial discharge detection on cable terminations and cable systems.
Power Quality Measurement (PQM-800)
8-channel analysis of voltages and currents with harmonics up to 500 kHz and up to 4 TB storage.
DC Point Current Measurement
Permanent capture of parasitic DC currents at the grounded neutral point of power transformers.
Vibration Monitoring
Mechanical condition monitoring of power transformers, including detection of DC interference currents.
Locations
Sindelfingen
DEOffice and billing address
Stuttgart
DEProduction, development, and delivery address
- Manual final assembly
- End-of-Line-Testing per device
Products & Sensors
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and manufacturing of partial discharge monitoring systems and sensors (PDM-600,Testing | – | – | – | – | Electronic Components |
| Electrical TE measurement according to IEC 60270 (charge-based, pC)Testing | – | – | – | – | – |
| UHF Partial Discharge Measurement (electromagnetic, 300 MHz – 3 GHz)Testing | – | – | – | – | – |
| Acoustic TE measurement (ultrasound, piezoelectric sensors)Testing | – | – | – | – | – |
| TE localization on transformers and GIS (runtime measurement UHF/acoustic, test field and onsite)Testing | – | – | – | – | – |
| TE measurement with current clamps (HFCT) on cables; TE measurement on MS switchgear with TEVTesting | – | – | – | – | – |
| Vibration monitoring of power transformers; Measurement of parasitic DC currents inTesting | – | – | – | – | – |
| Power quality measurement (PQM-800, 8 channels, 1 MS/s, harmonics up to 500 kHz, up to 4 TB)Testing | – | – | – | – | – |
| Consulting, training, and development-accompanying investigations (voltage strength,Engineering | – | – | – | – | – |
| Development of individual measuring technology (sensors to cloud, UHF sensors, transient recorders,Engineering | – | – | – | – | – |
| Manual final assembly and individual end-of-line testing of every deviceAssembly | – | – | – | – | – |
Additional services
Quality & Certification
The processes are certified according to ISO 9001:2015 (SGS, Certificate DE25/00000676, valid until 09.09.2028). Every monitoring system, every sensor, and every signal generator undergoes individual end-of-line testing before delivery.
| Evidence | Sindelfingen | Stuttgart |
|---|---|---|
| ISO 9001:2015 |
History
- 2013
Founded as a spin-off from the Institute for Energy Transmission and High Voltage Technology (IEH) of the University of Stuttgart by Dr. Martin Siegel and Dr. Michael Beltle
- 2025
ISO-9001:2015 certification by SGS (Certificate DE25/00000676, valid since 10.09.2025)