The HZIJJ-I One Cup Transformer Insulation Oil BDV Tester is a high-precision, fully digital industrial instrument developed by our dedicated team of scientific and technical personnel. Built in accordance with relevant standards and regulations for insulating oil testing, this tester was refined through extensive field testing and continuous improvement. It features easy operation and an elegant appearance. Thanks to its fully automatic digital microcomputer control, the tester delivers high measurement accuracy, strong anti-interference capability, and dependable safety and reliability.

• Resists high heat, humidity, and salt spray for tropical island use
• Runs stably at -40°C, cold-proof and anti-condensation
• IEC compliant, with complete calibration certificates provided
• Local support: spares, on-site training, and instrument calibration

1. The instrument uses a microprocessor to automatically complete operations such as voltage ramping, holding, stirring, settling, calculating, and printing. It can conduct oil circulation withstand voltage tests within the range of 0–80KV.
2. It features a large LCD screen with English menu prompts.
3. The instrument is simple to operate. The user only needs to perform basic settings, and the instrument will automatically complete the withstand voltage test of one oil sample. The breakdown voltage values and the number of cycles (1 to 6 times) will be automatically stored. After the test, a thermal printer can print out each breakdown voltage value and the average value.
4. Power failure retention allows storage of up to 100 test results and can display the current ambient temperature and humidity.
5. Controlled by a micro-controller, it ensures uniform voltage ramping with an accurate voltage frequency of 50Hz, making the entire process easy to control.
6. It has over-voltage, over-current, and limit protection to ensure the safety of the operator.
7. It includes temperature measurement and display functions, as well as a system clock display.