
Used Transformer Oil Purifier Double Stage Vacuum Filtration Recycling Machine
Product Introduction
'Good quality comes 1st; assistance is foremost; business enterprise is cooperation' is our business enterprise philosophy which is regularly observed and pursued by our company for winding resistance test set, high voltage circuit breaker tester, partial discharge detector. With advanced technical equipment, technological process and dedication to work, we carry the trust and trust of every customer. We continue to improve our own technical strength, so that some of our technical fields have even approached or reached the advanced level of the same industry. We adhere to the principles of creating products with science, making progress with technology, and developing new businesses with the market.
HZJF-9041D Four Channels Partial Discharge Detector

Overview
The HZJF-9041D four-channel partial discharge detector is a new type of digital partial discharge detection device developed by our company. While retaining all the advantages of the HZJF-9041 model, this product further reduces its size and optimizes its performance. It replaces the traditional oscilloscope and physical knob operation with a 10.1-inch touchscreen, making it more convenient to use.
This instrument features a fully touchscreen operation design, which not only enhances operational durability but also includes the following functions: one‑click automatic calibration, adjustable high‑voltage test divider ratio, and support for uploading test data via serial communication. The device offers high sensitivity, a wide range of applications, a broad dynamic range of the amplification system, multiple frequency band combinations (nine types in total), and strong anti‑interference capability. It is a practical partial discharge detection instrument widely used by power departments, manufacturing enterprises, and research institutions.
Main Technical Indicators
1. The equivalent capacitance ranges from 6pF to 250 μ F
2. Number of channels: Four channels
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 allowable current value of input unit
5. Elliptic scan time base
(1) Frequency 50/60, 100, 150, 200, 400Hz
(2) Rotation: 30 ° as the first gear, and can rotate 120 °
(3) Working method: ellipse sine wave straight line
6. Display unit
10.1 inch capacitive touch screen is used.
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 1 decimal place (10pc or more), 2 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 1 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



We will, as always, make efforts to further develop the advantages of scientific and technological talents, and make efforts to develop and dedicate first-class Used Transformer Oil Purifier Double Stage Vacuum Filtration Recycling Machine to users. We can provide our customers with professional, reliable and convenient transporting services. Our company has experienced research and development experts and field of product equipment and has excellent marketing team and professional management team.
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