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Product — Partial discharge inspection instrument - live detection method — ZPD-901 Ultrasonic partial discharge inspection instrument
Product name：ZPD-901 Ultrasonic partial discharge inspection instrument
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
Other name：Ultrasonic partial discharge inspection instrument, charged partial discharge inspection instrument, online partial discharge inspection instrument, handheld partial discharge inspection instrument
Component：Partial discharge instrument host, built-in ultrasonic sensor, headset, charger
| Purpose & brief description |
| ● ZPD-901Ultrasonic partial discharge inspection locator can quickly find the ultrasonic wave generated by partial discharge of live equipment, mainly for open equipment, especially cables; ● Scan the high-voltage cable head for discharge; ● Scan the insulator for discharge; ● Scan the open equipment of the substation and find out whether there is corona discharge; ● Scan the dry transformer and find whether the coil is discharged; ● Scan the bushing of the main transformer and find out whether the main transformer has corona discharge; ● Scan the whole main transformer and find whether there is abnormal vibration in the main transformer body; |
| Test purpose |
| ● The purpose of partial discharge test is to find the defects of 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 in the insulating medium of high-voltage apparatus under the action of high electric field intensity; Therefore, the function of local discharge test can detect the potential insulation hazards of power equipment; |
| Technical parameter |
| ● Built in ultrasonic sensor; ● Display: DB value, discharge original waveform, battery status; ● accuracy: ± 1dB; Measuring center frequency: 40KHz ± 1kHz; ● measurement range: - 60 ~ 60dB, step size: 1dB; ● antenna: radar type ring focal antenna; ● the laser sight is green laser; ● 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 |
| ● handheld, non-contact, visual, audible and stored display waveform, live non-contact detection; ● signal receiving range: up to 50m; ● large signal amplification and high sensitivity; ● moderate intensity green laser aiming, easy for human eyes to track in the sun; ● the antenna is a special military antenna with strong focusing ability; ● display the original waveform of partial discharge and store it; ● powerful and widely used, suitable for power monitoring in power system, railway, petrochemical and metallurgical industries; ● accurate positioning, safe and reliable, and a good helper for condition based maintenance; |
Feidian electric energy provides more professional testing equipment and technical services for power transformer, transformer, switch, high-voltage cable, power capacitor, bushing, insulator, lightning arrester, motor and other manufacturers
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Shanghai Feidian Electric Co.,Ltd
Address：Lingang section of Shanghai Pilot Free Trade Zone
Tel：13761804576
Email：zhangzaihui@126.com
Web site：www.feidian.net.cn
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