Determining the breakdown voltage
Efficient and reliable
The insulation capacity of insulating liquids is assessed using breakdown voltage testing. The test results indicate whether any ageing of the oil has taken place, e.g. due to excessive water content, impurities or oxidation of the oil.
The right device for every situation
The BAUR DPA 75 C is a breakdown voltage tester designed for both laboratory and mobile use. The larger DTA 100 C unit is designed for continuous operation in the laboratory.
Superior quality that you can depend on
- Measurement technology and power electronics
designed for long service life
- High-quality glass test vessels
- Precise, reliable, and reproducible measurement results over very long periods
Simple and stable: BAUR breakdown strength test devices
Automatic test sequences
The combination of extremely short switch-off times during breakdowns and the easy oil sample handling facilitate high quality statements and conclusions on the insulating oil quality. Furthermore, features such as temperature measurement of the insulating liquid, the precise setting of electrode distances according to the standard and automatic self-testing ensure robust measurement results.
Precise voltage control
The voltage is measured on the secondary side at the device’s high-voltage generator, which means that very precise measurement results can be achieved. It also permanently monitors the voltage rise. Our “Real Breakdown Monitoring” (RBM) has proven itself excellent in practice.
DPA 75 C
With its rechargeable battery mode, the mobile DPA 75 C device is suitable for use in a laboratory as well as for in situ measurements on power transformers. The device delivers a maximum test voltage of 75 kVrms symmetric.
DTA 100 C
The DTA 100 C is intended for use in a laboratory and provides a maximum test voltage of 100 kVrms symmetric. This device is therefore also capable of testing oils used in transformers of the transmission network.
Further topics relating to insulating oil testing: