Digital Partial Discharge Detector
HYJF-2002 Partial Discharge Detector is a new type of digital partial discharge detector developed by our company. It retains the advantages of HYJF-2002 partial discharge detector, reduces the volume, and optimizes the performance. It uses a 10.1-inch touch screen to replace the traditional operation mode of the oscilloscope tube and physical knob, making it more convenient to use.
Description
HYJF-2002 Partial Discharge Detector is a new type of digital partial discharge detector developed by our company. It retains the advantages of HYJF-2002 partial discharge detector, reduces the volume, and optimizes the performance. It uses a 10.1-inch touch screen to replace the traditional operation mode of the oscilloscope tube and physical knob, making it more convenient to use.
Features
The instrument adopts whole touch screen operation, which improves the product's service life and has the following functions: automatic correction; high voltage divider ratio can be set; serial communication upload test data. The instrument has the characteristics of high sensitivity, wide application range, a wide dynamic range of amplification systems, multiple frequency band combinations (nine kinds), and strong anti-interference ability. It is a practical partial discharge testing instrument widely used by electric power departments, manufacturers, and scientific research institutes.
Technical Specification
1. The equivalent capacitance ranges from 6pF to 250uF
2. Number of channels: single channel
3. Measurement range: 0.1pC-10000nC
4. Detection sensitivity and allowable current (see Table 1)
|
NO. |
Tuning Capacitance Range |
Sensitivity (pC) (Unbalanced Circuit) |
Effective Value Of Allowable Current |
|
|
Unbalanced Circuit |
Balance Circuit |
|||
|
1 |
0～25～100pF |
0.02 |
30mA |
0.25A |
|
2 |
25～100～400pF |
0.04 |
50mA |
0.5A |
|
3 |
100～400～1500pF |
0.06 |
120mA |
1A |
|
4 |
400～1500～6000pF |
0.1 |
0.25A |
2A |
|
5 |
1500～6000～25000pF |
0.2 |
0.5A |
4A |
|
6 |
0.006～0.025～0.1μF |
0.3 |
1A |
8A |
|
7 |
0.025～0.1～0.4μF |
0.5 |
2A |
15A |
|
8 |
0.1～0.4～1.5μF |
1 |
4A |
30A |
|
9 |
0.4～1.5～6.0μF |
1.5 |
8A |
60A |
|
10 |
1.5～6.0～25μF |
2.5 |
15A |
120A |
|
11 |
6.0～25～60μF |
5 |
25A |
200A |
|
12 |
25～60～250μF |
10 |
50A |
300A |
|
7R |
Resistance |
0.5 |
2A |
15A |
Table 1. Detection sensitivity and the allowable current value of input unit
5. Elliptic scan timebase
(1) Frequency 50/60, 100, 150, 200, 400Hz
(2) Rotation: 30 ° as the first gear and can rotate at 120 °
(3) Working method: ellipse sine wave straight line
6. Display unit
Use a 10.1-inch capacitive touch screen.
7. Amplifier
(1) 3dB low frequency fl:10, 20, 40kHz optional
(2) 3dB high frequency fh:80, 200, 300kHz optional
(3) Gain adjustment, rough adjustment 6, inter gear gain difference 20 ± 1dB, fine adjustment range >20db
(4) Asymmetry of positive and negative pulse response ＜ 1dB
8. Time window
(1) Window width: adjustable, 5 ° ~ 170 ° at 50Hz
(2) Window position: each window can rotate 0 ° ~ 170 °
(3) Two-time windows can be opened separately or simultaneously.
9. Peak pulse display
The touch screen displays one decimal place (10pc or more), two decimal places (less than 10pc), error: ± 3% (in full scale)
10. Test voltage display
(1) Range 150kV
(2) Input impedance: >1m Ω
(3) Display: touch screen display, display one decimal place
(4) Error: ± 1%
11. Test frequency display
Error: less than ± 1%
12. Zero standard system
Zero sign is consistent with all ellipse scanning frequencies
13. Structure
(1) Dimensions: 370mm (width), 460mm (depth), 215mm (height)
(2) Weight: about 12.5kg
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