UT568A‑640 Tablet‑Style Infrared Acoustic Imager Safeguards Grid‑Run Equipment Throughout Its Entire Lifecycle

The accelerated construction of new‑generation power systems has brought revolutionary upgrades to power‑equipment maintenance workflows. The conventional breakdown‑driven passive overhaul mode is being replaced by proactive risk‑inspection mechanisms.

Power grids operate under complicated and changeable working surroundings. Locating hidden hazards accurately and securing long‑term equipment reliability across the service‑life cycle stands as the top priority for maintenance teams.

Field‑based testing of the UT568A‑640 tablet‑mounted infrared acoustic imager was completed at Yangliuping 110‑kV Substation. Boasting acoustic‑optical fusion imaging and non‑contact inspection capacity, the tester converts invisible partial‑discharge signals and abnormal sound sources into readable visual graphics and delivers robust technical support for predictive power‑equipment maintenance.

1. Non‑contact Diagnosis Resolves Difficulties of Live‑Loaded High‑Voltage Cabinet Inspection

Fully‑sealed high‑voltage switchgears cannot be opened under live‑wire conditions. Hidden partial‑discharge faults inside sealed cabinets constitute long‑term blind spots for substation patrol‑check tasks.

During on‑site inspections on sealed energized hardware at the 110‑kilovolt substation, the UT568A‑640 demonstrated exceptional signal sensitivity. Equipped with an acoustic array consisting of 345 high‑density MEMS microphones and broadband signal acquisition ranging from 2 kHz to 100 kHz, the gadget picks up faint ultrasonic leakage noises escaping from cabinet vents and assembly gaps. Inaudible ultrasonic signals are instantly rendered as acoustic cloud images.

Breaking past limitations including manual listening and imprecise positioning from single‑point ultrasonic testers, non‑contact visual inspection supplies reliable fault references for power‑off maintenance and enables advance risk prevention.

2. Full‑Range Scanning Builds Safety Barriers for Outdoor Power Facilities

Outdoor booster‑station hardware features scattered layout and harsh field environments. The UT568A‑640 supports long‑distance detection spanning 0.3 m to 200 m. Maintenance technicians stay away from live‑charged apparatus while carrying out comprehensive fine scanning over instrument transformers, insulators, surge arresters, busbar terminals and main transformers.

The device rapidly pinpointed insulator partial‑discharge defects during field tests. Supported by multiple positioning modes and sound‑source focusing functions, the high‑sensitivity acoustic sensor system filters outdoor ambient noise, pinpoints discharge sources precisely under complex surroundings and conducts comprehensive equipment health evaluation.

3. All‑in‑one Portable Hardware Accelerates Digital‑Oriented Maintenance Upgrade

Traditional patrol missions require multiple separate inspection meters for diverse equipment defects, raising hardware expenses and increasing field‑operation burdens.

The UT568A‑640 innovatively combines acoustic imaging and infrared temperature‑measuring capabilities. One single instrument accomplishes integrated partial‑discharge detection and thermal‑defect patrol. Field‑workers finish two‑dimensional fault screening within one inspection trip, streamline inspection gear and boost operational efficiency.

UNI‑T continuously optimizes core technologies and applies infrared‑acoustic imaging solutions to power‑maintenance scenarios, covering abnormal noise localization inside switch cabinets, outdoor‑insulation defect detection and infrared thermal inspection. Moving forward, UNI‑T will keep focusing on full‑lifecycle equipment management. Intelligent and high‑efficiency measuring‑test solutions will help grid‑maintenance teams improve work performance and guarantee the safe and stable operation of the whole power grid.