ZPD-901B Remote ultrasonic partial discharge line patrol instrument|Shanghai Feidian Electric Co.,Ltd

Product name：ZPD-901B Remote ultrasonic partial discharge line patrol instrument
Product executive standard：IEC62478，DL/T 417-2006,Q/GDW11063-2013, Q/GDW 11059.8-2013，DL/T 1416-2015,Q/GDW 11316-2014，DL/T 555一2004
Product nickname：Ultrasonic partial discharge inspection instrument, charged partial discharge inspection instrument, online partial discharge inspection instrument, handheld partial discharge inspection instrument
Product components：Partial discharge instrument host, built-in ultrasonic sensor, headset, charger

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Purpose & brief description

● ZPD-901B remote ultrasonic line patrol instrument is mainly applicable to the patrol inspection of distribution network lines below 35KV, and the discharge point fault is found;
● Temperature and humidity display and GPS positioning function;
● On board line patrol function, with line patrol speed of about 30 miles;
● Conduct non-contact scanning for high-voltage primary equipment such as operating transformer and GIS, and find and locate external discharge;
● Conduct live line scanning on the open (outdoor) equipment of the transformer station to find and locate various discharges (corona, arc, flashover, creepage, disconnection, arcing, etc.);
● Scan the high-voltage switchgear in operation, find and locate partial discharge, loose screws and other faults;
● Find and locate the insulator discharge on the iron tower, the creepage of the open cable head and the partial discharge of the underground cable;
● In the handover and preventive test of power system, in the partial discharge test of main transformer and GIS, the device is used together with the partial discharge instrument. If there is partial discharge, it can distinguish whether it is internal discharge or external discharge. If it is external discharge, it can locate the specific discharge point;
● In the factory test of large oil immersed transformer, GIS and other manufacturers, the device is used with the partial discharge instrument in the partial discharge test. If there is discharge, the internal discharge or external discharge can not be seen on the screen of the partial discharge instrument, and the handheld line patrol instrument is used for scanning; External discharge can be quickly found and located. If there is no external discharge, it is judged as internal discharge; For the factory partial discharge test of dry-type transformer, the device can be used with the partial discharge tester to quickly distinguish whether it is internal discharge or external discharge; In addition,
● Scan the dry-type transformer in live operation, which can accurately and quickly find and locate whether it is internal discharge or external discharge;
● For mechanical faults of bearings of large mechanical equipment due to poor lubrication, the device can be used to detect and locate;
● Leakage detection of high pressure sealing gas and liquid;

Test purpose

● The purpose of partial discharge test is to find defects in equipment structure and manufacturing process; For example, the local electric field intensity inside the insulation is too high; Metal parts have sharp corners; The insulation is mixed with impurities or partially defective, and the electrical connection between metal grounding parts and conductors in the product is poor, so as to eliminate these defects and prevent partial discharge from damaging the insulation;
● Partial discharge refers to the non penetrating discharge between the electrodes of the insulating medium in the high voltage apparatus under the action of high electric field strength; Therefore, the function of local discharge test can detect the potential insulation hazards of power equipment;

Technical parameter

● The laser sight is green laser;
● Built in ultrasonic sensor;
● Display: DB value, original discharge waveform, battery status;
● Accuracy: ± 1dB; Measuring center frequency: 40KHz ± 1kHz;
● Measurement range: - 60 ~ 60dB, step size: 1dB;
● Antenna: Horn concentrator;
● Luxury noise attenuation earphone, which can be used with safety helmet;
● Storage: 255 displayed waveforms can be overwritten and stored;
● Battery: built in lithium battery, 9V, 500mA;
● Ambient temperature: - 20 ℃ ~ 55 ℃;
● Overall dimension and weight: 55 × forty-seven × 20cm, weight: host: 1.5kg, complete set: 3kg;

Technical features

● Horn shaped concentrator, gun shaped, hand-held, non-contact, visual, audible and stored, display waveform and discharge waveform can be transmitted to the background, live non-contact detection;
● Have on-board line patrol function;
● Temperature and humidity display, GPS positioning function;
● Signal receiving range: up to 50m;
● Large signal amplification and high sensitivity;
● The green laser with moderate intensity is accurate and easy for human eyes to track in the sun;
● The display can display waveforms from time to time and store valuable waveforms;
● It has powerful functions and wide application range, and is suitable for power monitoring, mechanical fault monitoring, leakage monitoring of high-pressure sealing gas and liquid in power system, railway, petrochemical and metallurgical industries;
● In addition to patrol inspection and positioning of the discharge of the substation of the railway system, it is especially suitable for finding and positioning various insulation and connection faults of the catenary of the railway power system; See the following description for details;
● Safe and advanced, good helper for condition based maintenance;

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ZPD-901B Remote ultrasonic partial discharge line patrol instrument

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