The HKDQTECH HPD500 Multifunctional Partial Discharge Detector is an advanced portable diagnostic instrument designed for fast and accurate detection of partial discharge (PD) activity in high-voltage electrical equipment. It integrates multiple detection technologies including UHF (Ultra High Frequency), HFCT (High Frequency Current Transformer), TEV (Transient Earth Voltage), contact ultrasonic, and air ultrasonic detection methods to provide comprehensive condition assessment of electrical assets.
The HPD500 helps maintenance teams identify insulation defects, abnormal discharge activity, and potential electrical faults without interrupting equipment operation. It is suitable for online inspection of switchgear, GIS, transformers, and other high-voltage equipment, improving reliability, safety, and preventive maintenance efficiency.
Key Features:
Model | HPD500 |
Detection method | AA, AE, TEV, UHF, HFCT |
Detection spectrum | PRPS, PRPD, continuous spectrum, flight spectrum, pulse waveform spectrum |
Alarm function | Support (alarm threshold can be freely set) |
AA performance | |
Detection frequency band | 40±1kHz |
Detection dynamic range | -8～68dBμV |
Sensor sensitivity | -65dB (0dB=1volt/μbar RMS SPL) |
Detection linearity error | ≤ 10％ |
AE performance | |
Detection frequency band | 20～200kHz |
Detection dynamic range | 0～60dBμV |
Sensor sensitivity | Peak sensitivity ≥70dB(V/(m/s)), average sensitivity ≥60dB(V/(m/s)) |
Detection linearity error | ≤ 10％ |
TEV performance | |
Detection frequency band | 3～100MHz |
Detection dynamic range | 0～60dBmV |
Detection linearity error | ≤ 10％ |
HFCT performance | |
Detection frequency band | 3～30MHz |
Detection dynamic range | 0～60dBmV |
Detection linearity error | ≤ 10％ |
Detection sensitivity | ≤ 3PC |
Sensor transmission impedance | ≥ 10mV/mA |
UHF performance | |
Detection frequency band | 300MHz～1500MHz |
Detection dynamic range | -70～0dBm |
Sensor equivalent height | ≥ 10mm |
Detection sensitivity | ≤ 2.5V/m |
Data transmission method | WIFI |
Power frequency synchronization mode | Internal synchronization (frequency can be set), power synchronization |
Power supply synchronization transmission mode | Wireless transmission |
Power frequency synchronization mode | Internal synchronization (frequency can be set), power synchronization |
Power supply synchronization transmission mode | Wireless transmission |
Power frequency synchronization mode | Internal synchronization (frequency can be set), power synchronization |
Operating temperature | -20～55℃ |
Host size | 158x102x36.8mm |
Host weight | 450g |
The HKDQTECH HPD500 Multifunctional Partial Discharge Detector is an advanced portable diagnostic instrument designed for fast and accurate detection of partial discharge (PD) activity in high-voltage electrical equipment. It integrates multiple detection technologies including UHF (Ultra High Frequency), HFCT (High Frequency Current Transformer), TEV (Transient Earth Voltage), contact ultrasonic, and air ultrasonic detection methods to provide comprehensive condition assessment of electrical assets.
The HPD500 helps maintenance teams identify insulation defects, abnormal discharge activity, and potential electrical faults without interrupting equipment operation. It is suitable for online inspection of switchgear, GIS, transformers, and other high-voltage equipment, improving reliability, safety, and preventive maintenance efficiency.
Key Features:
Model | HPD500 |
Detection method | AA, AE, TEV, UHF, HFCT |
Detection spectrum | PRPS, PRPD, continuous spectrum, flight spectrum, pulse waveform spectrum |
Alarm function | Support (alarm threshold can be freely set) |
AA performance | |
Detection frequency band | 40±1kHz |
Detection dynamic range | -8～68dBμV |
Sensor sensitivity | -65dB (0dB=1volt/μbar RMS SPL) |
Detection linearity error | ≤ 10％ |
AE performance | |
Detection frequency band | 20～200kHz |
Detection dynamic range | 0～60dBμV |
Sensor sensitivity | Peak sensitivity ≥70dB(V/(m/s)), average sensitivity ≥60dB(V/(m/s)) |
Detection linearity error | ≤ 10％ |
TEV performance | |
Detection frequency band | 3～100MHz |
Detection dynamic range | 0～60dBmV |
Detection linearity error | ≤ 10％ |
HFCT performance | |
Detection frequency band | 3～30MHz |
Detection dynamic range | 0～60dBmV |
Detection linearity error | ≤ 10％ |
Detection sensitivity | ≤ 3PC |
Sensor transmission impedance | ≥ 10mV/mA |
UHF performance | |
Detection frequency band | 300MHz～1500MHz |
Detection dynamic range | -70～0dBm |
Sensor equivalent height | ≥ 10mm |
Detection sensitivity | ≤ 2.5V/m |
Data transmission method | WIFI |
Power frequency synchronization mode | Internal synchronization (frequency can be set), power synchronization |
Power supply synchronization transmission mode | Wireless transmission |
Power frequency synchronization mode | Internal synchronization (frequency can be set), power synchronization |
Power supply synchronization transmission mode | Wireless transmission |
Power frequency synchronization mode | Internal synchronization (frequency can be set), power synchronization |
Operating temperature | -20～55℃ |
Host size | 158x102x36.8mm |
Host weight | 450g |
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