Firstly, you need to understand what a power surge is before understanding how a surge protection device works. When the voltage passes through an electronic device and if the voltage exceeds the standard level (120 volts), then the voltage rise state is called a power surge. There are many reasons for a power surge, such as the use of high-power equipment, line aging, lightning strikes, and equipment failures from power companies. The power surge can generate high temperatures in wires and components in electronic products and cause them to be damaged. Even if the power surge does not damage the electronic components, it will cause damage to the internal components and shorten their service life. In fact, no one is aware of the occurrence of a power surge until the electrical equipment suddenly stops working.
Building surge protector can be used to prevent damage to the equipment caused by sudden surges. It works by conducting current from a power socket, and then conducting it out through the equipment that has been installed with a surge protection device. The metal oxide varistor is an important device in the surge protector, which can divide and conduct any excess voltage to ensure that the voltage and power levels received by the device are consistent. The working principle of a metal oxide varistor is similar to a pressure-sensitive valve. When the metal oxide varistor detects a high level of voltage, it can reduce the resistance, and it can increase the resistance if the voltage level is too low. In addition, it can automatically start to change the direction of the voltage when necessary. The metal oxide varistor consists of three parts, including a metal oxide connected to the power supply and two grounding wires connected to the semiconductor. The semiconductor has a variable resistance, which allows electrons to move by changing the resistance when the voltage is too high or too low.
Techwin is your trusted partner as a surge protection supplier, offering a comprehensive range of cutting-edge products designed to safeguard your electronic equipment. Our lightning protection boxes, leakage protectors, SPD (Surge Protective Devices) for telecom, and Ethernet SPDs are engineered with precision to provide unparalleled protection against power surges and electrical anomalies.
Power Surge Monitoring Device: Intelligent Monitoring and Power ProtectionOctober 9, 2024In modern life, electricity has become the cornerstone of our daily life and work. However, with the increasing complexity of the power network and the presence of unforeseen factors such as lightning...viewView of beautiful waterfall in Maluan Mountain in autumnOctober 21, 2022In order to enrich the cultural life of employees, under the organization of the Administration Department, We established "Techwin Outdoor Activities Team" mean to our employees to w...viewInstallation Steps of The Surge Protection DeviceAugust 30, 2021Ⅰ. Tools of installing a surge protection deviceBefore installing the surge protection device, tools such as a flat-blade screwdriver, a pair of wire strippers, some pliers and electrical tape are ne...viewSurge Protector for Closed-Circuit Television SystemJune 26, 2024This article will introduce the importance and working principle of surge protector for CCTV that meet the high availability requirements of closed-circuit television systems.The Necessity of Surge Pr...viewHow to Select a Proper Surge Protector?December 8, 2021Surge Protective Device is a device designed to protect against transient overvoltages, serving as an important component of the internal lightning protection system. According to its specific usage, ...viewApplication of Surge Protector Against LightningNovember 9, 20211. The development of the surge protector against lightningAs early as the 1950s and 1960s, surge protectors have been widely used in lightning protection design. Surge protectors were first called vo...view
EN
jp 
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
th 
ro 
bg 
nl 
