The HZJF-9000 Handheld Partial Discharge Detector is a portable PD inspection tester engineered for on-site patrol inspection of power equipment. It is widely applied for partial discharge detection in power systems, covering insulation condition inspection of high-voltage switchgears, ring main units, voltage and current transformers, transformers (including dry-type transformers), GIS, overhead lines, power cables, and other equipment.
The discharge severity of electrical equipment is evaluated through two core indicators:
| Measuring Range | 0 ~ 60 dBmV |
|---|---|
| Resolution | 1 dB |
| Accuracy | ±1 dB |
| Max Pulses Per Cycle | 1400 |
| Measuring Bandwidth | 3 ~ 100 MHz |
| Measuring Range | -6 dBμV ~ 68 dBμV |
|---|---|
| Resolution | 1 dB |
| Accuracy | ±1 dB |
| Frequency Range | 20 ~ 200 kHz |
| Sensitivity | > 40 dB |
| Measuring Range | -6 dBμV ~ 68 dBμV |
|---|---|
| Resolution | 1 dB |
| Accuracy | ±1 dB |
| Sensor Center Frequency | 40 kHz |
| Sensitivity | > 35 dB |
| Detection Frequency Band | 300 ~ 2000 MHz |
|---|---|
| Measuring Range | 0 ~ 60 dBmV |
| Sensitivity | 2.4 V/m |
| Sensor Frequency Band | 300 ~ 2000 MHz |
| Sensor Transfer Impedance | 5 mV/mA |
|---|---|
| Detection Frequency Range | 1 ~ 30 MHz |
| Sensitivity | ≤ 50 pC |
| Housing Material | ABS |
|---|---|
| Display Screen | 4.0-inch RGB LCD, Resolution: 800 × 480 |
| Sampling Precision | 12 bit |
| Synchronization Mode | Internal synchronization, External synchronization |
| Interfaces | USB port (charging + Wi-Fi input), 3.5 mm stereo headphone jack, external sensor input port |
| Headphone Impedance | Min. 8 Ω |
| SD Card | Standard 16G ~ 64G |
| Built-in Battery | 3.7V / 5000mAh Lithium Battery |
| Continuous Working Time | Approx. 6 hours |
| Charger Input | AC 90 ~ 264V or DC 5V |
| Operating Temperature | -20 ~ 50ºC |
| Relative Humidity | 20% ~ 85% RH |
| Main Unit Dimension & Weight | 210 × 100 × 35 mm, 0.4 kg |
