The APD-ANNUNCIATOR is a remote partial discharge detection equipment inside any energized cabinet. The probe is installed in the unit under test, instantly reporting its status. This equipment gives a great benefit because it avoids long term damage to the switching equipment.
The great advantage of this equipment is its unique design that optimizes the results allowing simultaneous detection: TEV and directional detection of acoustic tests.
The APD-ANUNNCIATOR module is equipped with a High Frequency Partial Discharge detection circuit for rapid TEV testing. Through the validation algorithms used by the equipment, the number of Partial Discharges is determined and the appropriate alarm level can be selected. Many modules of this PD measurement and analysis equipment can be used in cascade allowing PD detection in many cabinets at the same time.
The software included with the equipment is used to set the alarm threshold for each audio channel and TEV. The comprehensive software allows the graphic representation of the PD activity to be displayed in an intuitive user-friendly interface, which is a great advantage to the user. The software of the APD-ANNUNCIATOR partial discharge detection equipment is used to retrieve data from the USB port of the equipment where 15 000 entries are stored. Ethernet cables are used for data transmission and as a power source.
- Simultaneous tests: TEV and acoustics
- Easy operation and installation on any metal surface.
- Acoustic sensor attached.
- Robust design, simple and effective equipment.
The SonoTEV sensor is installed directly on the metal surface of the cabinet to be analyzed, making installation very simple. Once installed, it detects high-frequency signals caused by partial discharge activity inside, using capacitive coupling technology (VHF signal detection).
The SonoTEV sensor is also equipped with a surface ultrasonic sensor mounted on a flexible directional arm, which indicates acoustic signals of PD activity, so PD detection is airborne or contact.
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