
Ultrasonic Partial Discharge Inspection and Locating Instrument - Yangzhou Dary
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(1)Ultrasonic Partial Discharge Inspection and Locating Instrument. Temperature and humidity display, GPS positioning function;
(2) Vehicle-mounted line inspection function, with inspection speed around 30 mph;
(3) Non-contact scanning of operating transformers, GIS and other high-voltage primary equipment to detect and locate external discharges;
(4) Live scanning of open (outdoor) equipment in substations to detect and locate various discharges (corona, arcing, flashover, creepage, broken conductors, arcing, etc.);
(5) Scanning of operating high-voltage switchgear to detect and locate faults such as partial discharge and loose screws;
(6) Detecting and locating insulator discharges on transmission towers, creepage on outdoor cable terminations, and partial discharges in underground cables;
(7) In handover and preventive tests of power systems, and in partial discharge tests of main transformers and GIS, this device is used in conjunction with a partial discharge detector. If partial discharge occurs, it can distinguish between internal and external discharges, and if external, locate the specific discharge point;
(8) In factory tests of large oil-immersed transformers and GIS manufacturers, this device is used with a partial discharge detector during PD tests. If discharge occurs, the PD detector screen cannot show whether it is internal or external; using a handheld inspection instrument for scanning can quickly detect and locate external discharges. If no external discharge is found, it is judged as internal discharge. For factory PD tests of dry-type transformers, using this device with a PD tester can quickly distinguish between internal and external discharges. Additionally, scanning live dry-type transformers can quickly and accurately detect and locate both internal and external discharges;
(9) Mechanical faults in large machinery bearings due to poor lubrication can be detected and located with this device;
(10) Leak detection for high-pressure sealed gases and liquids.
◆Features of Ultrasonic Inspection Instrument (Comprehensive Inspection Instrument)
(1) Horn-type concentrator, gun-shaped appearance, handheld, non-contact, visual, audible, and can store and display waveforms; discharge waveforms can be transmitted to the backend; live non-contact detection;
(2) Vehicle-mounted line inspection function;
(3) Temperature and humidity display, GPS positioning function;
(4) Signal reception range: up to 50m;
(5) High signal amplification and sensitivity;
(6) Moderate-intensity green laser aiming, easy for the human eye to track in sunlight;
(7) Display can show waveforms in real-time and store valuable waveforms;
(8) Powerful functions, wide application range, suitable for power monitoring, mechanical fault monitoring, and leak monitoring of high-pressure sealed gases and liquids in power systems, railways, petrochemical, and metallurgical industries;
(9) In addition to inspecting and locating discharges in railway substations, it is particularly suitable for finding and locating various insulation and connection faults in overhead contact systems of railway power systems. See details below;
(10) Safe and advanced, a good helper for condition-based maintenance.
Note: The above information and technical parameters are compiled and released by Yangzhou Dary Electric Co., Ltd.