| Portable GIS Partial Discharge Detector
Model: JHPD-20
JHPD-20 detects and diagnoses the partial discharge inside the gas insulated switchgear (GIS). By using the UHF sensor attached on the surface of GIS or inside the GIS and the noise sensor which excludes the disturbance signal, the detector analyzes the GIS operation condition.
◆ Features
--- Light weight: easy for on site operation.
--- User friendly interface and simple operation design.
--- Outside and inside sensor are acceptable to monitor the partial discharge inside the GIS.
--- Acoustic sensor distinguishes the ambient noise and improves the reliable of the PD signal recognition.
◆ Specifications
|
PD signal input |
－65dBm～－10dBm |
|
Frequency range |
500MHz～1500MHz |
|
SYNC volts input |
250V[max] |
|
External SYNC output |
0－3V（peak value） |
|
Power |
AC 220V/50 60Hz |
|
Channel |
2（including noise channel） |
|
SYNC input channel |
1 |
|
SYNC output channel |
1 |
|
Communication |
RJ45 |
|
Display |
A. Connection |
LED |
|
B. Operation |
LED |
|
C. SYNC |
LED |
|
D. Power |
LED |
|
Operation temperature |
-25℃—40℃ |
◆ Operation Function
* Display Function
--- Real time signal cycle display (two/three dimension pattern), 1/60 cycle data display
--- Real time peak value data display, PD peak value pattern display
--- Real time average data display, PD average value pattern display
--- Real time PRPD ( peak value- resolve- phase display), PD data peak value- resolve-phase pattern display
* Memory Function
--- History data management: save the data every 15 minutes (900 seconds)
--- Faults management: record the faults data or threshold value or density record
* Search Function
--- History data search
--- Faults data search
--- Two/three dimension pattern search |
