GDJF-2002 Pulse Current Method Partial Discharge Tester
Product Description
GDJF-2002 Pulse Current Method Partial Discharge Tester
Test method of GDJF-2002 partial discharge Tester: Pulse current method
The pulse current method is a classic method for partial discharge detection, following the IEC 60270 international standard.
It evaluates the insulation state of electrical equipment by directly measuring the instantaneous current pulses generated by partial discharge. This method is known for its high precision and quantitative analysis, and is one of the most widely used techniques in laboratory and field testing.
Features
1. 10.1-inch touch screen,easy to operate.
2. automatic correction
3. high voltage divider ratio can be set
4. serial communication upload test data
5. 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.
Specifications of GDJF-2002 Partial Discharge Tester:
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 |
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
Outline Drawing
1. Partial discharge input: partial discharge measurement signal input, GDJF-2002 is the single channel, the signal comes in from any channel;
2. High voltage divider, voltage range: 150V;
3. RS232 port: through this serial port, the parameters of the partial discharge instrument can be uploaded to other equipment;
4. Grounding bolt: required the reliable grounding during the test;
5. External power supply input;
Accessories
Calibrator
Impedance box
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Contact Us
Contact Person: Christine Gou
Whatsapp/Wechat: +86 15123029885
Mobile: +86 15123029885
E-mail: gold05@hy-industry.com