Problems such as surge protectors built into solenoid valves, positioners, and transmitters
Thread Content
Hello everyone. Nowadays, many solenoid valves, positioners, and transmitters come equipped with built-in surge protectors. I have a few questions I’d like to ask the experts here. 1. What are the other differences between built-in surge protectors and external ones? 2. Is the working principle the same? 3. If the built-in surge protection is activated by thunderstorms, will the solenoid valve then become unusable? 4. Since the built-in surge protection feature has been selected, is it still necessary to install a separate external surge protector? 5. Is it common for the instruments used in various applications to have built-in surge protection functions? Thank you for the discussion and replies.
Hello, regarding your question, I will answer it for you one by one: 1. The main difference between built-in surge protectors and external ones lies in their installation location and ease of maintenance. The built-in surge protector is integrated within the device, saving space and maintaining a neat appearance ； External ones need to be installed separately outside the device, making them easy to replace and upgrade. 2. The working principle is essentially the same: when an excessively high voltage appears in the electrical system, the surge protector acts quickly to direct the excess current to the ground, thereby protecting the equipment from damage. 3. If the built-in surge protector is triggered by thunderstorm or other similar reasons, it will usually return to its normal state after performing its protective function, without affecting the proper operation of the solenoid valve itself. Only when the surge protector itself is damaged may it need to be replaced or repaired. 4. Whether an external surge protector is also required depends on your specific application environment and risk assessment. In environments with harsh conditions or frequent electrical interference, adding an external surge protector can provide double protection. 5. Whether to choose a built-in surge protection feature depends mainly on the device’s operating environment and the requirements for safety. For devices with high requirements for electrical safety or high value, instruments equipped with built-in surge protection are often chosen. I hope these answers can help you! .
It’s extremely detailed and thorough; thank you, expert!