HPJF-2008 Digital Partial Discharge(PD) Analyzer/Tester/Detector/Test

HPJF-2008 Digital Partial Discharge(PD) Analyzer/Tester/Detector/Test

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HPJF-2008 Digital Partial Discharge(PD) Analyzer/Tester/Detector/Test

Product Description

HPJF-2008 Partial Discharge Detector is measuring partial discharge for the products  such as transformers, mutual inductors, HV switches, zinc monoxide arresters and power cables. It also can make type tests and monitor insulation operation.

This type has the advantages of high sensitivity, wide range of capacitance, being well equipped for input unit impedance detecting and more variants of frequency bands ( 9 in all). After proper setting, the discharge impulse amount can be read directly. The indicating and digital meters are shown simultaneously.
 
This detector is widely applied in power stations, manufacturers and institutions.
 

Features

1. Ambient temperature: 0-40ºC±2ºC
2. Relative humidity: ≤80%
3. Power supply: 220V±10%, 50HZ
4. No violent vibration and mechanical shock
5. The device should be placed in the environment with no dust and corrosive, good ventilation.      It should not be interfered by strong electromagnetic.
6. Earthing requirements: earthing resistance <1Ω
 

Specifications

Capacitance range to be tested 6PF-250μF
Testing sensitivity (shown in Table.1)

 
Amplifier band
Low terminal: 10KHZ, 20 KHZ, 40 KHZ (optional)
High terminal: 80 KHZ, 200 KHZ, 300 KHZ (optional)
 
Amplifier gain adjustment
Coarse control - there are 6 steps for coarse tuning, the gain of each step is 20±1db
Fine control ≥ 20 db
 
Time windows
Width of window, adjustable 15o-150o
Window position, adjustable 0o-170o
Two windows can be opened simultaneously or separately.
 
Discharge meter
Digital display
PD display: LED 3½ digits
0-100.0    Error <±5% (full scale)
 
Ellipse time base 
Frequency: 50Hz,100Hz,150Hz, 200Hz,400Hz
Elliptic display color is yellow
Elliptic rotation: each step is 30°, 120 ° rotation can be made.
Display: ellipse - straight line
Enable to adjust high-frequency time base ellipse to normal size according to input voltage (13-275V)., intake power < 1 VA. 
 
Waveform lock
Lock required waveform of any time to facilitate observation and analysis
 
Testing Voltage meter
Range: 100KV (Can be expanded)
Display by 3½ digital voltage meter
Accuracy: better than ±5% (full scale)
 
Inside, outside the zero mark function
Dimensions: 450*450*190 mm

Working Principle

Panel Instruction
The front panel and back panel is shown as Figure 2 and Figure 3.

Color LCD screen 

31/2 digital meter display for reading of discharge value

31/2 digital meter display for reading of testing voltage

Ellipses rotate

Industrial frequency (50Hz), high-frequency time base choice

Window position control

Amplifier coarse tuning

Elliptical and linear conversion

Waveform lock

Window width adjustment

Amplifier fine tuning

Inside and outside the zero mark on and off

Left window on or off

Right window on or off

Low frequency band selection(10,20,40kHz )

High frequencies choice(80,200,300kHz )

Power switch

18. Power outlet               

19. 220V Fuse

20. 20V Fuse                      

21. 20V Fuse

22. High frequency socket       

23. High frequency fuse

24. Ground Terminal              

25. VGA interface (external display)

26. Test voltage fine-tuning  

27. Test voltage input

28. Signal input

Packing list