GDJF-2008 Portable 4 Channels Digital Partial Discharge(PD) Free Detector

• Customization: Available
• Task: Partial Discharge Testing Machine
• Structure: Combination
• Model NO.: GDJF-2008
• Mathematical Model: Non-Linear
• Signal: Continuous
• Function: Measurement
• Certification: ISO: 9001
• Condition: New
• Customized: Customized
• Material: Aluminum Alloy
• Power Supply: AC 220V±10%, 50Hz
• Capacitance range to be tested: 6PF-250μF
• Low terminal: 10kHz, 20 kHz, 40 kHz (optional)
• High terminal: 80 kHz, 200 kHz, 300 kHz (optional)
• Width of window: adjustable 15-150 degree
• Window position: adjustable 0-170 degree
• PD display: LED 3 1/2 digits
• Voltage meter range: 0-100kV (Can be expanded)
• Voltage accuracy: better than ±5% (full scale)
• Transport Package: Wooden Case
• Specification: SGS, ISO
• Trademark: HVHIPOT
• Origin: Wuhan, China
• HS Code: 9030849000
• Production Capacity: 5000PCS/Year

Product Description

GDJF-2008 Portable 4 Channels Digital Partial Discharge(PD) Free Detector


Product Description

GDJF-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 tested6PF-250μF
Testing sensitivity (shown in Table.1)
 

Input unit No.	Tuning capacitance	Unit	Sensitivity(pC) (Unsymmetrical circuit)
1	6-25-100	pF	0.02
2	25-100-400	pF	0.04
3	100-400-1500	pF	0.06
4	400-1500-6000	pF	0.1
5	1500-6000-25000	pF	0.2
6	0.006-0.025-0.1	uF	0.3
7	0.025-0.1-0.4	uF	0.5
8	0.1-0.4-1.5	uF	1
9	0.4-1.5-6.0	uF	1.5
10	1.5-6.0-25	uF	2.5
11	6.0-2.5-60	uF	5
12	25-60-250	uF	10
7R	Resistance		0.5

 
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.

 

1. Color LCD screen 
2. 31/2 digital meter display for reading of discharge value
3. 31/2 digital meter display for reading of testing voltage
4. Ellipses rotate
5. Industrial frequency (50Hz), high-frequency time base choice
6. Window position control
7. Amplifier coarse tuning
8. Elliptical and linear conversion
9. Waveform lock
10. Window width adjustment
11. Amplifier fine tuning
12. Inside and outside the zero mark on and off
13. Left window on or off
14. Right window on or off
15. Low frequency band selection(10,20,40kHz )
16. High frequencies choice(80,200,300kHz )
17. 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
 

GDJF-2008 Partial Discharge Detector	1set
JF2008-1 Calibration pulse generator	1 pc
JF-3 input unit	1 pc
JF-4 input unit	1 pc
Power Cable	1 pc
Connection Cable 8M(Red 1piece, black 1piece) (Red cable for connecting calibration pulse generator with HV terminal, black cable for connecting calibration pulse generator with the ground)	2pcs
Connection Cable 0.5M(Red 1piece, black 2pcs) (Red cable for connecting coupling capacitor Ck with beginning terminal of input unit) (Black cable for connecting primary end of input unit with the ground, and connecting ground terminal of input unit with ground terminal of coupling capacitor Ck)	3pcs
Test Lead	3pcs
0.5A Fuse	2pcs
1A Fuse	2pcs
Ground Cable	1 pc
User's Guide	1 pc
Factory Test Report	1 pc