
Cable Partial Discharge Test System, High Precision Pd Detector
Product Introduction
We are guided by the company spirit of 'harmony, tolerance, unity, dedication, science, and innovation'. We will continue to provide high-quality SF6 Gas Analyzer, high voltage circuit breaker tester, dissolved gas content analyzer and excellent services to our customers at home and abroad, and develop simultaneously with our respected customers. Looking to the future, we will adhere to the mission of integrating global resources and creating a better future together, and devote ourselves to becoming a world-class enterprise. You can place an order and try it. If everything goes well, you can place a long-term order. We constantly improve the production process, improve work efficiency, reduce production costs and strive to let customers buy satisfactory products at a reasonable price. For the society, what we follow in our operation is the concept of serving both customers and ourselves, benefiting ourselves and others, and maintaining sustainable operation.
HZ-9003C Handheld Multifunctional Partial Discharge Tester
Overview
The HZ-9003C multifunctional partial discharge tester is designed for on-line detection and location of partial discharge in high-voltage equipment. It is developed based on our extensive experience in the field of partial discharge measurement.




System Overview
The system is equipped with composite TEV sensors, ultra-high frequency (UHF) sensors, high-frequency current transformers (HFCT), and high-sensitivity ultrasonic sensors to collect partial discharge signals from high-voltage equipment. It employs multilevel detection frequency reduction techniques to lower the discharge frequency of signals, while utilizing high-speed AD conversion circuits for signal digitization. Digital signal processing and adaptive filtering interference suppression methods ensure the reliability of test data.
By collecting various signals generated by partial discharge in different high-voltage equipment, the system enables rapid assessment of equipment operating status. The tester can be installed for online detection without affecting equipment operation, allowing workers to promptly evaluate switchgear cabinet conditions. This significantly improves equipment operational reliability, safety, and effectiveness.
System Components
The HZ-9003C includes:
Device host
Specialized partial discharge detection software
TEV sensor
Ultrasonic sensor (USS)
Ultrasonic concentrator (ELTW)
High-frequency current transformer (HFCT)
UHF sensor
Earphone and connecting cables
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 frequency | 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 |



Having a positive and progressive attitude to customer's fascination, our organization constantly improves our solution high-quality to fulfill the requirements of shoppers and further focuses on safety, reliability, environmental prerequisites, and innovation of Wuhan Jfd-2000A Cable Partial Discharge Test System, High Precision Pd Detector. As one of the reliable supplier in China, We have keeping improved our management and technology level. We always focus on improving our quality. We believe our quality and service will bring success to each customer. We need not only to inherit the fine tradition of bearing hardships and stand hard work, but also vigorously promote the pioneering and innovative spirit of the times.
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