Many power systems, railway systems, large-scale petrochemical plants and enterprises have a lot of electrical equipment whose internal insulation are mostly oil-filled insulation type, and therefore, test on insulating oil dielectric strength is common and necessary. To meet the needs of the market, we have developed and produced a series of insulating oil dielectric strength testers according to national standard GB/T507-2002, industry standard DL429.9-91 and the latest Electric Power Industry Standard DL/T846.7-2004 by ourselves. This instrument, by using a single-chip microcomputer as the core, can operate in full automation with high accuracy, greatly improving work efficiency and reducing the labor intensity of workers. Moreover, it is small in size and convenient to carry.
II. KEY FUNCTION AND FEATURE
1. With a microprocessor, automatically fulfill the withstand voltage test for oil circulation with a range of 0~80KV (including boosting, maintaining, mixing, standing, calculation, printing and other operations)
2. Display by large-screen LCD and prompt by English/Chinese menu
3. Simple operation. The machine will automatically complete the withstand voltage test on one cup of sample oil after simple setting by the operator. Breakdown voltage value of 1 to 9 times and recurrent times will be automatically saved. After the test, the thermal printer will print each breakdown voltage value and average value.
4. Power-down preservation. It can save 100 tested results and displaying current ambient temperature and humidity.
5. Adopt a single-chip microcomputer to boost the voltage at an even speed. The voltage is accurate at 50HZ, ensuring the whole process easy for control.
6. Equipped with over-voltage, over-current and limit protections to ensure the safety of operators.
7. With the function of displaying the measured temperature and system clock.
8. Communicate with computer with a standard RS232 interface.
III. MAJOR TECHNICAL INDICATORS
1,Output voltage: 0~80KV (optional)
2,Voltage distortion rate: <3%
3,Booster capacity: 1.5KVA
4,Measuring accuracy: ±3%
5,Supply voltage: AC220V±10% 50Hz±1 Hz
7,Applicable temperature: 0℃~45℃
8,Applicable humidity: <75%RH
9,Overall dimension: 465×385×425
||How far apart are the electrodes of the transformer oil BDV tester?
||The electrode spacing is 2.5mm for model (adjustable)
||What are the types of electrodes of the HOPU HJT Series transformer oil BDV tester?
||Three kinds, respectively flat, mushroom head, spherical, mushroom head more.
||What is the maximum trip curren of HOPU HJT Series the transformer oil BDV tester?
||The maximum trip curren is 1.3A.
||What is the minimum resolution of the voltage for the tester?
||How does HOPU HJT Series export data and what is the format?
||You can insert the usb drive directly, download the data, and export the results in TXT format
||What material is the casing of the tester made of HOPU HJT Series oil testers ?
||Chassis shell is an iron shell, for advanced is an aviation case shell (aluminum)..
||What is the cause of oil cup breakage during the experiment?
||1. In the process of transportation, the hidden crack of oil cup is caused. When oil is detected, the energy released will impact the hidden crack, leading to breakage. 2. Ask the customer what oil has been tested, is it oil that has an effect on glass?
||the tester can do PC software?
||Model of HOPU HJT Series have done PC software and already have a communication protocol, so they only need to add RMB3,000 to the PC software. There are no available communication protocols for other models
||What is the relationship between the voltage of the transformer and the resistance of the insulating oil inside? Can you select products according to transformer voltage?
||The higher the transformer rating, the higher the oil's pressure resistance value. Different countries have different standards. Customers are advised to check the standards of local countries. Under normal circumstances, the following 800KV transformer, 80KV oil can be met, the transformer above 800KV, may need to 100KV oil medium.
Ms Hu is at your service
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