Ultrasonic measurement switch cabinet partial discharge tester
Portable Hand Held Pd Detector Partial Discharge Tester
The instrument adopts a portable design, which can scan and detect directly on the switch cabinet shell without any influence or damage to the operation of the switch cabinet. At the same time, the measured signal can be stored and replayed on the TF card for easy reference, and the supplied earphones can be used to hear sound of electric discharge.
Product Parameters
Instrument
| Display | 4.3-inch true color TFT LCD touch screen |
| Input Signal Channel | TEV *1, Air-coupled ultrasonic *1 |
| Power Socket | DV 12V |
| Headphone Jack | 3.5mm |
| Storage | TF Card supported |
| Battery | 12V 2500mAH |
| Operating hours | >4h |
| Dimension | Instrument Box:240*240*80 mm Handle Dimension:146*46.5*40 mm |
| Weight | <1kg |
TEV Measurement
| Sensor Type | Capacitive Coupling |
| Sensor Specifications | Built-in |
| Frequency Range | 10-100MHz |
| Measuring Range | 0-50dB |
| Accuracy | ±1dB |
| Resolution | 1dB |
Ultrasonic Measurement
| Sensor Type | Air Coupling |
| Sensor Specifications | Built-in |
| Resonance Frequency | 40kHz±1kHz |
| Measuring Range | -10dBuV-70dBuv |
| Sensitivity | -68dB（40.0kHz，0dB=1 Volt/μbarrms SPL） |
| Accuracy | ±1dB |
| Resolution | 1dB |
Other Specification
| Normal working hours | > 4 Hours |
| Battery protection | lease recharge when battery is low |
| Rated Voltage | 100-240V |
| Charging Voltage | 12V |
| Charging Current | 0.5A |
| Time Required to fully charge | 7 Hours |
| Operating Temperature | 0-55℃ |
Application for Partial Discharge Testing Set
Partial discharge usually occurs where the wire insulation is damaged. It can cause short circuits and fires, resulting in destructive fatal failures. The most dangerous situation is the poor isolation of the external as a whole, and the gradual collapse leads to unexpected equipment failures. Therefore, continuous or regular monitoring of high-voltage equipment and timely detection of partial discharge are very important.
Partial discharge detectors are widely used in the measurement of partial discharge of various high-voltage electrical products such as transformers, transformers, high-voltage switches, zinc oxide arresters, power cables, etc., product type tests, insulation operation supervision, etc.
