Transformer Station Acoustic Anomaly and Arc Sound Analysis
Scenario record: it defines the environment, the mission flow and a proposed hardware and software configuration. The list below is a configuration proposal, not an installation inventory. Field projects lists deployed systems and their measurements.
- Environment
- Outdoor field
- Operating mode
- Supervised autonomy
- Proposed robot
- Unitree A2
The problem addressed
Invisibility of internal transformer faults from outside and inability of human ears to detect ultrasonic frequencies.
Draft mission flow
- 1The robot patrols silently at the transformer station during night shift; ultrasonic microphone array continuously listens in the 20-100 kHz band.
- 2Edge AI detects abnormal arc or partial discharge sounds in milliseconds by comparing against the learned reference baseline of normal transformer operating sounds.
- 3Simultaneous thermal camera scanning cross-validates the temperature profile at the acoustic anomaly point.
- 4Automatic emergency alarm for critical anomalies; planned maintenance work orders for low-level degradation are transmitted to CMMS via API.
Proposed hardware
- Ultrasonic Microphone Array
- Radiometric Thermal Camera
- NVIDIA Jetson Orin NX
Proposed software
- Navigation
- Compact SLAM navigation in transformer rooms and open-air transformer parks
- Model
- Frequency-based Arc Sound, Partial Discharge and Bearing Anomaly Classification
- Integration
- SCADA and CMMS (Maintenance Management System) API Integration
The robot's real operating limits
Unitree A2
Industrial Class Legged Robot
Product page- Ingress rating
- IP56-IP67
- Runtime
- >5 hours (No load) / >3 hours (25kg Load)
- Operating temperature
- -20°C to 55°C
- Payload
- 100 kg
- Max speed
- 5 m/s
- Climb
- 45°
Values are manufacturer data. Scenario fit is determined by comparing these limits with site conditions.
From scenario to installation
Feasibility is determined by the site survey: floor and route, network coverage, the charging point, intervention responsibilities and the conditions under which the robot must stop. The survey report defines the scope, the constraints and the commissioning steps.