
Jfd-2000A Automatic Calibration, Automatic Synchronization, Automatic Voltage Recording, Automatic Measurement, Storage and Playback Partial Discharge Detector
Product Introduction
We constantly surpass ourselves, and are committed to continuing to provide manufacturers and customers with leading technology and cost-effective wireless phasing sticks, underground cable fault pinpoint locator, capacitance and tan delta meter. Making effective marketing strategy is the key to expand the market, occupy the market, expand sales volume and create huge economic benefits. We always hold that quality is the biggest responsibility to customers, and regard quality as the lifeline of the enterprise. In terms of service, our company will continue to adhere to the business philosophy of customer first, constantly improve customer service level and improve customer loyalty. We are committed to realizing the great vision of green development and guarding the green mountains and common earth home.
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 |



Our company always adhere to the spirit of seeking truth, ensure Jfd-2000A Automatic Calibration, Automatic Synchronization, Automatic Voltage Recording, Automatic Measurement, Storage and Playback Partial Discharge Detector quality, reasonable price and integrity as the fundamental business purpose, facing the market. In the face of the ever-changing market challenges, we adhere to the management culture of "people-oriented, market service". We adhere to the principle of people-oriented, respect the value of employees and trust their ability.
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