
Rexon Automatic Insulating Oil Purifier & Oil Filtration Machine for Transformer
Product Introduction
'Excellent first' in mind, we operate closely with our customers and supply them with efficient and expert services for ttr turns ratio tester, complete transformer test system, insulating oil dielectric strength tester. With the development and progress of economy, science and technology, and people's values, our production technology is constantly improving. Our company will always put the interests of customers first, because we firmly believe that the success of customers is our future. We actively work with our customers with a passion for innovation and collaborative problem solving.
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



Over the years, the quality and competitiveness of our various Rexon Automatic Insulating Oil Purifier & Oil Filtration Machine for Transformer have been a reliable guarantee for customer profitability. We continue to improve our strategic layout and broaden our sales network and market space to be able to provide products and services to our customers in a timely and efficient manner. We constantly improve the competitiveness of our products in the market with the idea of advancing with the times and the working style of truth-seeking and pragmatism, and provide customers with intimate and timely services.
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