We all know that there is one thing in our daily lives, that is, that one of the originals that we use in order to protect people from electrocution, and to prevent overheating, etc., is the role of a small part of the security relay, many of whose functions we do not know, and that this paper will explain the workings of the security relays and show you the role and characteristics of the security relays. I learned that when people ask, i don't know。
Safety relays can be divided into electromagnetic safety relays, heat-sensitive dry reed relays and solid state relays; the working method of a secure relay can be roughly three
The security relay is a combination of several relays and circuits to complement each other's abnormal defects, to achieve the integrity of the relays with the right and low-motion actions, to reduce their error and failure values and to increase the safety factor so that various safety relays are designed to protect different levels of machinery ... It is used to protect mechanical operators exposed to different levels of risk。
2. A relay with security protection
Low pressure control high pressure is also called four or two kilos for human security to avoid the risk of electrical arcs in direct contact with high pressure switches. Switches with low voltage switches to control high voltage switches. It's white that the magnetic core of low voltage absorbs the high voltage switch。
The so-called “safe relay” is not a “failureless relay”, which has a mandatory-guided node structure, which can also ensure safety in case of nodes melting. (1) the machine cannot suddenly re-start at the time of emergency shutdown (2), in case of failure of the machine's safe circuit, it can stop the machine's power supply (3), and in case of failure of the safe circuit, the machine can no longer activate the secure input such as a safety switch, a light screen, etc., and cannot perform the above functions。
Having learned about the workings of safe relays, we are more aware of the role that safe relays play in our lives and of the workings of safe relays at a deeper and different level. As electrical appliances in our lives that protect our electricity security, we must know the right uses and usages, and then play its role rationally. Through these insights, we can also explain the safety and working principles of these relays to other small partners。
