HZ-9003C Handheld Multifunctional Partial Discharge Tester
Huazheng Electric Manufacturing (Baoding) Co., Ltd. is one of the leading manufacturers and suppliers of hz-9003c handheld multifunctional partial discharge tester in China. Please feel free to buy high quality equipment for sale here from our factory. Good service and reasonable price are available.
HZ-9003C Handheld Multifunctional Partial Discharge Tester
Overview
HZ-9003C multifunctional partial discharge tester is used for on-line detection and location of partial discharge of HV equipment, which is designed based on our many years experiences in the partial discharge measuring fields.
The system is equipped with composite TEV sensors, ultrahigh frequency sensors, High-frequency current transformers and high sensitivity ultrasonic sensors to collect partial discharge signals at high voltage equipment. The system adopts multilevel detect frequency reduction techniques to reduce the discharge frequency of the signals, meantime using high-speed AD conversion circuit to complete the signal digitization, also by using digital signal processing, adaptive filtering interference signal processing methods to ensure the reliability of the testing data. By collecting different signals produced from the partial discharge in different high equipment, the equipment operation status can be detected rapidly. The tester can be installed for detection with equipment operation and without any effect to the equipment operation. This will help the workers to make evaluation timely for the switchgear cabinet operation status, and thus greatly improve the equipment operation reliability, safety and effectiveness.
HZ-9003C include: device host, special partial discharge detection software, TEV sensor (TEV), ultrasonic sensor (USS), ultrasonic concentrator (ELTW), high frequency CT (HFCT), UHF sensor (UHF) , earphone and connecting wire.
Technical Data
Composite TEV measurement | |
Sensor | Capacitive |
Range | 0～60dBmV |
Resolution | 1dB |
Error | ±1dB |
Detection Bandwidth | 5~70MHz |
Pulse/Cycle maximum | 655 |
Threshold adjustment range | 3～57dB |
High frequency current transformer | |
Detection Bandwidth | 10kHz～30MHz |
Signal transit mode | 50Ω cable |
Detection sensitivity | 10pC |
Ultrasonic concentrator | |
Measurement range | -7dBμV～68 dBμV |
Resolution | 1dB |
Error | ±1dB |
Sensor sensitivity | -65dB (0dB = 1volt/μbar effective value SPL) |
Sensor central fequency | 20～50kHz |
Sensor diameter | no more than 50mm |
Heterodyne frequency | 38.4kHz |
Non - contact ultrasonic energy collector | |
Effective acceptance distance | 30m |
Sensor center frequency | 40 kHz |
Diameter of sensor | 16mm |
External diameter of parabolic reflector | 275mm |
Standard diameter of parabolic reflector | 250mm |
Weight | 0.6kg |
Ultrahigh frequency sensor | |
Detection bandwidth | 300MHz～1.5GHz |
Signal transit mode | 50Ω cable |
Detection sensitivity | 1dB |
Gain | ＞65dbm |
Anti-interference Earphone Mic | |
Earphone Mic | vivo |
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