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BSS - Model UHF-PS1 / UHF-PS1-V4A -Window-Type UHF PD Sensor
The window-type UHF PD sensor is used for measuring of the electromagnetic radiation from internal PD in ultra-high frequency range (UHF) in transformers. Cigré Working Group WG A2-27 recommends to install DN50 valves or dielectric windows for later fitting of UHF probes. (Recommendations for condition monitoring and condition assessment facilities for transformers, TB 343). The dielectric window of the UHF-PS1 sensor is designed according to Cigré Working Group WG D1-37 (Guidelines for partial discharge detection using conventional and unconventional methods, TB 662).
The window-type UHF sensor can be integrated directly into the tank wall of new transformers.
For this, the sensor requires a stainless steel welding ring and a temperature stable, oil-durable dielectric window. The UHF sensor is inserted into this window from the outside without oil handling.
Window sensors are suitable for permanent monitoring of partial discharges. Several window sensors can be installed on one transformer.
This solution enables the oil-tight, vacuum capable integrity of the transformer while offering maximum flexibility in potential future installments of the UHF-PS1 and PD monitoring systems such as the PDM-600.
- Window-type UHF PD sensor
- For oil-filled transformers
- Designed according to Cigré TB 662
- Bandwidth: 200 MHz ... 3 GHz
- Integrated high-pass filter
- High sensitivity