| Customization: | Available |
|---|---|
| Display: | Digital |
| Type: | Transistor Tester |
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I. Overview
Dielectric loss measurement is a very basic method in the insulation test, which can effectively find the overall damp deterioration of the electrical equipment insulation, as well as local defects. It is widely used in electrical manufacturing, electrical equipment installation, handover and preventive tests. The measurement of dielectric loss of transformers, transformers, reactors, capacitors, bushings, and lightning arresters is the most basic method to measure their insulation performance.
VS-2810 automatic anti-interference precision dielectric loss tester breaks through the traditional bridge measurement method, adopts variable frequency power supply technology, uses single-chip microcomputer and modern electronic technology to perform automatic frequency conversion, analog/digital conversion and data calculation; achieves strong anti-interference ability , Test speed, high precision, fully automatic digitization, easy operation; power supply adopts high-power switching power supply, output 45Hz and 55Hz pure sine wave, automatic pressure, can provide up to 10kV voltage; automatically filter out 50Hz interference, applicable It is used in substations and other field tests with large electromagnetic interference. It is widely used in the dielectric loss measurement of transformers, transformers, bushings, capacitors, arresters and other equipment in the power industry.
II. Features
1. The instrument adopts complex current method to measure capacitance, dielectric loss and other parameters. The accuracy of the test results is high, and it is easy to realize automatic measurement.
2. The instrument uses frequency conversion technology to eliminate the 50Hz power frequency interference, even in the environment of strong electromagnetic interference, it can also measure reliable data.
3. The instrument adopts large screen LCD, and the test process is prompted by Chinese menu, which is intuitive and easy to operate.
4. The instrument is easy to operate, and the measurement process is controlled by microprocessor. As long as the appropriate measurement method is selected, the data measurement can be completed automatically under the control of microprocessor.
5. Integrated model, with standard capacitor and high voltage power supply, easy to field test and reduce field wiring.
6. The instrument has high measurement accuracy and can meet the requirements of oil dielectric loss measurement. Therefore, only standard oil cup and special test line are needed to realize oil dielectric loss measurement.
7. With CVT test function, CVT self-excited test can be realized, without external accessories, only one measurement is needed, and the capacitance and dielectric loss of C1 and C2 are all measured.
8. Ivddv technology is used in the reverse wiring test, which eliminates the instability of the previous reverse wiring data.
9. It has the function of reverse wiring low-voltage shielding. When the 220kV CVT bus is grounded, the 10kV reverse wiring dielectric loss of C11 can be measured without disconnection.
10. It has the function of measuring high voltage dielectric loss, and can use high voltage transformer or series resonance to carry out dielectric loss test of more than 10KV voltage.
11. Grounding protection function, when the instrument is not grounded or the grounding is poor, the instrument does not enter the normal program and does not output high voltage. With over-current protection function, the instrument will not be damaged in case of short circuit or breakdown.
12. Electric shock protection function, when the instrument operator accidentally electric shock, the instrument will immediately cut off the high voltage, to ensure the safety of test personnel.
III. Testable Parameters
The instrument can measure the following parameters and display them digitally:
Capacitance value CX of the tested product, in pF or nF, 1nF = 1000pF.
The dielectric loss value tgδ of the tested product is displayed in%.
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