Technical parameters
TEV measurement
Sensor | capacitive |
Measuring range | 0 ～ 60dBmV |
Resolution ratio | 1dB |
Error | ± 1dB |
Detection bandwidth | 5 ~ 70MHz |
Maximum pulse/period | 655 |
Threshold adjustment range | 3 ～ 57dB |
High-frequency current transformer
Detection frequency band | 10kHz ～ 30MHz |
Signal transmission mode | 50 Ω coaxial cable |
Detection sensitivity | 10pC |
Ultrasonic transducer
Measuring range | -7dBμV ～ 68dBμV |
Resolution ratio | 1dB |
Error | ± 1dB |
Sensor sensitivity | - 65dB (0dB = 1volt/μbar RMS SPL) |
Sensor center frequency | 20 ～ 50kHz |
Sensor diameter | no greater than 50 mm |
Heterodyne frequency | 38.4kHz |
Uhf sensor
Detection frequency band | 300MHz ～ 1.5GHz |
Signal transmission mode | 50 Ω coaxial cable |
Detection sensitivity | 1dB |
Gain | ＞ 65dbm |
Using the environment
Altitude | ≤ 3000m |
Environment temperature | -20 ～ 60℃ |
Relative humidity | ≤ 95% |
Hardware requirements
Shell | with a protective case, the protection grade should be up to or better than IP53 |
Connector | headphone jack, low voltage dc charger input, external ultrasonic sensor input |
Weight | > 3 kg |
Display | LED display, and can display battery status |
Nickname: PD Detector ; Ultrasonic pd detector ; Portable PD Detector ; Portable PD Tester
Feature:
1.The system uses multi-level detection and frequency reduction technology to reduce the frequency of the discharge signal. At the same time, the high-speed AD conversion circuit is used to complete the digitization of the signal, and the reliability of the detected data is ensured through interference signal processing methods such as digital signal processing and adaptive filtering.
2. By collecting different signals generated by partial discharges in different high-voltage equipment, the live state of the equipment can be quickly charged.
3. The instrument can be installed and tested in the running state of the device, without any impact on the normal operation of the device.
