NDJD-Ⅲ Insulating Oil Dielectric Strength Tester

Product Introduction

       Insulating Oil Dielectric Strength Tester is a high-accuracy, fully digital industrial instrument developed by our company's entire team of research and technical personnel. It is based on the national standard GB507-1986 and the industry standard DL/T846.7-2004, leveraging our strengths, through multiple field tests and long-term unremitting efforts. To meet the needs of different users, this series of instruments can be divided into single-cup, three-cup, and multi-cup models. The instrument is easy to operate and has an aesthetically pleasing design. Thanks to the fully automatic digital microcomputer control, it offers high measurement accuracy, strong anti-interference capability, and is safe and reliable.

Product Features

1. The instrument uses a large-capacity single-chip microcomputer for control, ensuring stable and reliable operation;
2. It features a wide-range watchdog circuit internally to prevent crashes;
3. Multiple operation options: the instrument program includes two national standard methods (GB507-1986, GB507-2002), industry standard DL/429, international standard IEC156, and custom operations, accommodating various choices for different users;
4. The oil cup is made of special glass cast in one piece, eliminating interference such as oil leakage;
5. The unique high-voltage end sampling design allows test values to directly enter the A/D converter, avoiding errors caused by analog circuits and making measurements more accurate;
6. The instrument has internal protection functions against overcurrent, overvoltage, short circuits, etc., and strong anti-interference capability with good electromagnetic compatibility;
7. Portable structure, easy to move, and convenient for both indoor and outdoor use.

Technical Parameters

1. Transformer capacity    1.5 kVA

2. Voltage rise speed     0.5kV/s-5.0kV/s (in increments of 0.5) ten selectable gears

                       Error  0.2kV/s

3. Output voltage     0～80 kV/100kV (optional)

4. Voltage accuracy     ±（2% reading + 2 digits）

5. Power distortion rate   ＜1%

6. Electrode gap     Standard 2.5 mm

7. Test cycles     6 times (1-10 times optional)

8. Standing time     900S (0-5900 S optional) 

9. Interval standing time  300S (0-5900S optional) 

10. Stirring time     15S (0-99S optional)

11. Display method     Large screen LCD Chinese character display

12. Communication interface     Standard 232 communication interface.

13. Dimensions     Length 430 mm; Width 350 mm; Height 370 mm

14. Instrument weight     36 kg

Usage Conditions

1. Ambient temperature     0～40℃

2. Relative humidity     ≤ 85%

3. Operating power supply     AC 220V ± 20%

4. Power frequency     50 Hz ± 5 Hz

5. Power consumption    ＜200 W