The PD Alarm is an asset mounted device for indicating the presence of partial discharge in high voltage switchgear, ring main units (RMUs) and dry type transformers. Designed for use in small substations, the instrument can activate local and remote alarms in addition to local indication.
The PD Alarm is built into a tough case that magnetically mounts to the RMU. Installation is very quick and simple with only a power connection required to get the system operational. Alarms can be configured to operate either locally with SCADA or remotely using an optional integrated modem.
The system incorporates algorithms that distinguish noise from real PD, significantly reducing the likelihood of getting false alarms. The status and PD levels are displayed on a bright OLED display at the front of the unit.
Key benefits
• Swift deployment
Small design and magnetic coupling for ease of installation
• Small and powerful
Compact design, but automated PD analysis
• Web interface
PD Smart Hub software displays data and alarms remotely
• Ensure accurate results
auto separation when the device detects background Noise instead of real PD
• Local Alarms
local alarms and volt free contacts
• Ease of use
control and configure with PD Alarm app
Key Features
• Display – Ultrasonic and TEV level displayed in dB
• Alarms – Current ‘live’ alarms and historical alarms
• TEV PD Detection – Measurement of electrical transients generated by internal PD
• Ultrasonic PD Detection – 3 independent ultrasonic channels detecting surface PD
• Integrated Noise Detection – Algorithm helps avoid ‘False Alarms’
PD Smart Hub data interface for remote analysis
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