Shielded room
- Low background noise design for partial discharge (PD) measurements during high-voltage testing.
- Available in various sizes and dimensions.
- Equipped with ventilation, air conditioning (HVAC), control rooms, air-cushion floors, etc.
Electromagetic field and line-conducted interference needs to be eliminated in order to measure low-intensity partial discharges with a PD background noise level (≤ 1 pC) in accordance with IEC 60270.
The effect of electromagetic field interference caused by radio signals, radar stations, welding arcs, etc. can be limited by a shielded room, also known as a Faraday cage.
Line-conducted interference caused by switching signals from thyristor switches and power switches, for example, can be dampened by means of high-frequency filters.