Lightning arresters, also known as lightning protectors, mainly include cigarette lighting arresters and signal lightning arresters.It is often connected between the grid conductors and the bottom line, but is sometimes connected next to the electrical windings or between conductors.When the equipment is normal, the air tightness is good, and the system operating voltage is normal, the arrester will show a high resistance state. At this time, it only has microampere-level current passing through it, so the sealing requirements of the product are particularly high.
If the arrester is not tightly sealed, dangers such as current leakage due to internal damage may easily occur.Major manufacturers of lightning arresters also pay special attention to the air tightness testing of lightning arresters. Hirays Technology has also conducted in-depth research on the air tightness testing of lightning arresters and specially developed a detector to detect the air tightness of lightning arresters.
This detector is the HC classic series of Hai Ruisi. It has a high-sensitivity pressure sensing and adjustment unit. Each program is specially set and integrates multiple testing methods. Each group of subprograms can be programmed independently, single-selected, and combined to meet various complex testing requirements.There is a unique detection method for each appearance of the arrester. The full-touch operation interface is simple, clear and easy to use.
The shape of this lightning arrester is an irregular rectangular parallelepiped with two spiral external connectors on it. The fully sealed shell material wraps the device inside. When testing, just place it on the tool connected to the instrument duct, fill it with dry, moisture-free, and impurity-free gas, then cut off the compressed air supply, let it stand still for a period of time to stabilize the pressure, and monitor the slight changes in air pressure in the testing environment after a set measurement time.The sensor transmits this information to the detection system. Finally, after a series of calculations, the gas leakage value can be obtained. Based on the leakage value, the sealing performance and IP waterproofing of the arrester can be detected.
The following is the lightning arresterAir tightness detectorDisplay and parameters:
1. High-sensitivity pressure sensing and adjustment unit, combined with advanced differential pressure software algorithm, the minimum resolution can reach 0.1Pa. This algorithm has obtained a national patent
2. Patented technology independently developed by Hirays."IVT pneumatic sealing valve island", greatly improving the test accuracy, ensuring the stability of the instrument, and the inflation speed is also greatly improved.
3. Multiple test functions: The instrument integrates two pressure forms, positive and negative, and 8 test methods: two pressure forms and five test methods can be programmed into more than 20 test functions.
4. It has more than 200 groups of subroutines. Each group of subroutines can be programmed independently and can be selected or combined to meet various complex testing requirements.
5. Full-touch large-screen intelligent operating system, graphical UI design based on the detection process, the operation interface is simple and clear, easy to teach and learn
6. A variety of pressure adjustment components and ranges are optional, with a wide air pressure range (-80KPA&-1MPa) optional.Optional electronic pressure regulating valve can realize multiple sets of pressure sequential testing
7. Multiple communication interfaces: built-in RS232 serial port, RJ45 network port, USB communication interface, LTP external I/O control port, supporting multiple communication protocols
8. Optional barcode scanning function and printer are available to facilitate product data management and quality traceability. The instrument history record can reach up to 200,000 items and can be exported to the computer in batches.
9. The standard volume identification function can automatically identify the volume of the sample to be tested, and measure and judge the leakage rate in a volumetric manner.
10. Ultra-high stability and ease of use have passed the rigorous test of the market.
11. A variety of accessories are available, including inflatable bypass, quick connector, and standard leak hole. At the same time, the instrument supports third-party calibration and can issue a calibration report.
(Heruis HC classic seriesAir tightness detectorparameter)
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