High-voltage electrical protection devices play an important role in protecting the normal and safe operation of various devices in high-voltage electrical cabinets, such as short-circuit protection, overload protection, single-phase grounding protection, etc. Due to the particularity of this device, people have very high sealing requirements for it.If the high-voltage electric protection device is not sealed and the seal is not qualified, there will be a risk of leakage during use of the device, or even an irreversible situation.Therefore, manufacturers will conduct sealing testing on the device before it leaves the factory. Due to its particularity, different manufacturers have their own set of methods for sealing testing of high-voltage electrical protection devices, but the test results are all unsatisfactory in terms of accuracy.
Among them, Hirays Technology is very experienced in sealing testing of high-voltage electrical protection devices.For different products, different types and sizes of high-voltage electrical protection devices have mature sealing detection solutions, which are suitable for sealing testing of different high-voltage electrical protection devices.
Sealing tester for high-voltage electrical protection devices
1. Demonstration of difficulties in detecting high-voltage electrical protection devices
1. The high-voltage protection device is larger in size and has more devices in appearance. Directly above it is a grille with the same length and distance. There are several butt joints on one side of the device, and the overall structure is precise;
2. The special structure of the high-voltage protection device makes it difficult to detect its sealing. The device's shell will undergo special treatment during the early design and production process, and the butt twist and connected wires serve to connect to the outside. During the test, the mold cannot be used for fully enclosed testing;
High voltage electrical protection device
2. Breakthrough in detection difficulties of high-voltage electrical protection devices
Tightness testing mold tooling for high-voltage electrical protection devices
1. In view of the special shape of the high-voltage electric protection device, Hirays Technology specially used a sealing tester that integrates tooling and mold, and customized a tooling jig for the high-voltage electric protection device. Since the upper part of this device is a grille with air outlets, and the lower part is in a closed state, when inflating the inside of the grille, its sealing can be judged by the changes in internal air pressure.
Details of sealing test of high-voltage electrical protection devices
2. When testing, just place the high-voltage protection device in the mold, set the program, and the upper mold closes the grille. When the instrument is started, it will automatically inflate the inside of the grille above the device. At the same time, the air pressure of the instrument will slowly rise. When the air pressure reaches the set value, the interior of the high-voltage protection device will be in a constant state. At this time, the induction line will determine the flow value to detect whether the air flow inside the device meets the standard.
Demonstration of sealing tester for high-voltage electrical protection devices
3. Parameter table of sealing tester for high-voltage electric protection device
High voltage electrical protection device sealing tester operating interface
1. High flexibility, functions can be added or deleted according to needs.
2. It has strong scalability and can quickly form multi-channel tests, greatly shortening the automated development cycle.
3. The analysis and control system can use various methods such as industrial control computers plus control cards or embedded systems to facilitate the docking and implementation of the MES system.
4. The screen size supports customization, and the embedded system comes standard with 7"Customizable 10.4"12"15";In industrial control computer mode, the screen size is not limited.
5. The standard configuration adopts the Hiraysi full-function valve island, with two pressure forms, positive and negative, and 8 test methods; the two pressure forms and five test methods can be programmed into more than 20 test functions.
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