Partial discharge(PD) is a pulsed discharge that produces a series of physical phenomena and chemical changes such as light, sound, electrical and mechanical vibrations in and around electrical equipment. When insulation defects occur in high-voltage electrical equipment, partial discharge signals will be generated. Through the detection and analysis of these signals, it can be judged whether there are hidden dangers of insulation inside the high-voltage electrical equipment, and the further expansion of potential accidents can be prevented. So regular PD testing is critical as part of a condition-based management (CBM) regime. This enables operators to obtain baseline PD readings to assess insulation quality, locate PD activity and determine maintenance goals
The partial discharge detector adopts a brand-new design and uses the currently popular Android system, which is easier to operate and use. In addition, it integrates 5 million pixel cameras to take pictures to facilitate inspection records; RFID is conducive to expanding the application of the Internet of things; internal integration discharge type library is provided to facilitate the comparison and verification of discharge conditions.
Host parameters |
|
Detectable channels |
4 Channels 1 TEV 1 US 1 UHF(Wireless, optional) 1 HFCT(Wireless, optional) |
Sampling accuracy |
12bit |
synchronous mode |
Internal synchronization, external synchronization, and photosynchronization |
TEV |
|
Detecting bandwidth |
3M-100MHz |
Detecting range |
0~60dB |
Detecting deviation |
±2dB |
resolution |
1dB |
Max.number of pulses per cycle |
720 |
Mini. Pulse frequency |
10Hz |
Output interface |
Standard SMA connection host |
Non-contact US |
|
Center frequency |
40kHz |
Resolution |
0.1uV |
Accuracy |
±0.1uV |
Detecting range |
0.5uV~1mV |
Output interface |
Standard SMA connection host |
Contact US |
|
Center frequency |
20kHz~300kHz |
Resolution |
50 Ω |
Accuracy |
0.1mV |
Detecting range |
0.1mV~1V |
Output interface |
Standard SMA connection host |
UHF(optional) |
|
Detecting bandwidth |
300MHz~1.5GHz |
Output mode |
BNC interface-Signal conditioning unit, wireless connection to the host |
Receive mode |
Antenna receive |
Transmission mode |
Coaxial cable |
Detecting sensitivity |
≤60dBm |
HFCT(optional) |
|
Detecting bandwidth |
1M-30MHz |
Transfer impedance |
>5mV/mA (10MHz ) |
Output impedance |
50 Ω |
Detecting range |
-20~80dB |
Detecting deviation |
±1dB |
Accuracy |
1dB |
Output interface |
BNC Interface-Signal conditioning unit, wireless connection to the host |
Hardware |
|
Display screen |
A 5.0-inch TFT True color LCD screen |
Resolution |
800×480 |
Operation mode |
Touch / button |
Storage |
TF Card |
Sound interface |
3.5 mm Stereo headphone jack |
Power |
DC-12V/2A DC Power |
Extended function |
USB-Type/500Mega pixel camera/RFID/Wi-Fi/Bluetooth |
Power |
|
Internal Power |
battery powered(4800mAH 7.4V) |
Working time |
About 7 hours, and the filling time is about 3 hours |
Dimension |
|
L×W×H |
235 mm×133 mm×48 mm |
Weight |
0.85 kg |
Environment |
|
Use ambient temperature |
-20℃~50℃ |
Storage environment temperature |
-40℃~70℃ |
Humidity |
10%-90%(Non-condensation) |
Height above sea level |
≤3000 m |
turn ratio tester, transformer test instrument, winding resistance tester, transform