Dual power supply & Over and under voltage protector maintenance guide: Zheliang Electric teaches you 3 steps to solve switching stability and voltage protection

       In continuous industrial production, emergency power supply in commercial places, home power safety and other scenarios, dual power switch and self-compound overvoltage and undervoltage protector are the "double defense line" to ensure power stability: the former ensures seamless switching of the main/standby power supply to avoid power failure losses; The latter monitors voltage fluctuations in real time to prevent electrical damage. So in order to make these two products work funny, and in order to give them a longer life cycle, how do we go about it? Yes, that is "maintenance"! As "Zheliang Electric", which deeply cultivates the electrical field, we combine our product research and development experience to dismantle the core maintenance skills of these two types of equipment for you, and help achieve the power consumption goal of "zero switching failure" and "zero voltage hidden danger".
          First of all, let's talk about how to maintain the dual power switch, then the first is the most common state visual detection, observe the display/indicator: Confirm that the voltage and frequency display of the main power supply (mains) and standby power supply (generator/battery) is normal, Zheliang products support real-time status monitoring of the LED screen, and automatic sound and light alarm when abnormal (such as "power voltage loss" and "switch timeout" indicator light on, need to check immediately). After this step is done, the mechanical parts are maintained, check the link mechanism: push the switch handle by hand to confirm that there is no stuck (Zheliang product gear group is made of wear-resistant alloy material, and a small amount of molybdenum disulfide grease can be applied to reduce friction loss). Fastening terminal: use torque wrench to tighten according to the standard torque of the nameplate (especially the main/standby power supply wire entry end, loose easily lead to excessive contact resistance heating, refer to Zhe Liang product wiring diagram operation). So in addition to these two steps, electrical performance detection and control module maintenance is also crucial, in addition to these, we have to consider that there are environmental factors, it is recommended that moisture-proof, dust-free, in order to make the dual power switch better operation!
         Next, we say how to maintain the self-compound overvoltage protector, then the first thing to mention about the self-compound overvoltage protector is that the function should be tested in real time, press the "reset button" once a month: analog voltage abnormal (such as manually lowering the input voltage to 170V below), observe whether the automatic power off; Whether to automatically close after the voltage returns to normal (Zheliang product response time < 0.1 seconds, automatic reset times ≤3 times, excess times need to be manually reset). The second is to use a voltmeter to detect the input/output voltage: to ensure that the error between the display value of the protector and the measured value is less than 1% (Zheliang uses high-precision sensors, it is recommended to calibrate once a year after long-term operation). Then the next is the appearance and wiring inspection, in order to ensure a more refreshing environment, to wipe the surface dust with a dry cloth, avoid direct washing with water, check the wiring, especially the entry line, to ensure that there is no oxidation, virtual connection and other problems.
       In order to better electricity, but also for safer electricity, Zheliang has been working hard, and also hopes to distribute this security to thousands of households