LED electronic display screen frequent tripping causes
LED electronic display screen frequent tripping causes
Led electronic display belongs to large-scale power equipment, especially the LED electronic display is relatively large, the power may reach tens of kilowatts hundreds of kilowatts, so the user may encounter frequent tripping when using the LED electronic display headache, so what is the reason? What to do when encountering display tripping? Here and we come together to explore.
First, leakage maintainer layout unreasonable caused by tripping. Due to the LED electronic display device site has the special characteristics of the LED electronic display in economic life is widely used, many companies and government departments and institutions organs will be used. If the wiring error, line damage, switch box leakage maintainer damage, local electricity appliances did not pass through the switch box and other reasons, as well as leakage maintainer itself can not be prevented by the error and refused to move, plus not in accordance with the actual electricity leakage maintainer arrangement, resulting in the total leakage maintainer frequently tripped.
Second, LED electronic display screen in the maintenance range does not form an effective secondary or tertiary leakage maintenance. Switch box in the final leakage maintainer is the main protection of electric equipment, if the final leakage maintainer is not installed, damaged or improper selection, will probably lead to the upper leakage maintainer frequently tripped. Due to the LED electronic display screen within a lot of metal conductors, wire joints more, if the wire insulation is not very good, it will lead to frequent leakage conditions; some also added some sockets, many times do not install leakage maintainer, often resulting in power leakage. Only in each maintenance range to form an effective secondary or tertiary leakage maintenance mode, can effectively reduce the leakage maintainer of frequent tripping.
Third, the LED electronic display leakage maintainer itself has certain limitations. The current leakage maintainer, whether electromagnetic or electronic type are using magnetic induction voltage transformer to pick up the leakage current in the main circuit of the power equipment, three-phase or three-phase four-wire in the magnetic ring is not possible to arrange a completely balanced. three-phase power load of the LED electronic display screen is not possible to completely balance the high current or higher overvoltage, there will be a very high permeability of the magnetic ring induces a certain electric potential, the electric potential is large enough to a certain level, it is possible to reduce the frequent tripping. Electric potential is large to a certain level, it will lead to leakage maintainer trip. Due to the larger rated current leakage maintainer using a relatively large magnetic ring, the leakage flux is also relatively large, and leakage current to overcome the magnetizing force of the magnetic ring itself, resulting in the actual use of leakage maintainer rated current, the lower the sensitivity, the larger the rejection rate.
Fourth, LED electronic display leakage maintainer in the rated leakage action current and rated leakage current between the action uncertainty region, leakage maintainer leakage current fluctuations in this region, may lead to leakage maintainer irregular trip.
The above reasons are the common reasons for frequent tripping of LED electronic display, so you understand how much?
Translated with www.DeepL.com/Translator (free version)
First, leakage maintainer layout unreasonable caused by tripping. Due to the LED electronic display device site has the special characteristics of the LED electronic display in economic life is widely used, many companies and government departments and institutions organs will be used. If the wiring error, line damage, switch box leakage maintainer damage, local electricity appliances did not pass through the switch box and other reasons, as well as leakage maintainer itself can not be prevented by the error and refused to move, plus not in accordance with the actual electricity leakage maintainer arrangement, resulting in the total leakage maintainer frequently tripped.
Second, LED electronic display screen in the maintenance range does not form an effective secondary or tertiary leakage maintenance. Switch box in the final leakage maintainer is the main protection of electric equipment, if the final leakage maintainer is not installed, damaged or improper selection, will probably lead to the upper leakage maintainer frequently tripped. Due to the LED electronic display screen within a lot of metal conductors, wire joints more, if the wire insulation is not very good, it will lead to frequent leakage conditions; some also added some sockets, many times do not install leakage maintainer, often resulting in power leakage. Only in each maintenance range to form an effective secondary or tertiary leakage maintenance mode, can effectively reduce the leakage maintainer of frequent tripping.
Third, the LED electronic display leakage maintainer itself has certain limitations. The current leakage maintainer, whether electromagnetic or electronic type are using magnetic induction voltage transformer to pick up the leakage current in the main circuit of the power equipment, three-phase or three-phase four-wire in the magnetic ring is not possible to arrange a completely balanced. three-phase power load of the LED electronic display screen is not possible to completely balance the high current or higher overvoltage, there will be a very high permeability of the magnetic ring induces a certain electric potential, the electric potential is large enough to a certain level, it is possible to reduce the frequent tripping. Electric potential is large to a certain level, it will lead to leakage maintainer trip. Due to the larger rated current leakage maintainer using a relatively large magnetic ring, the leakage flux is also relatively large, and leakage current to overcome the magnetizing force of the magnetic ring itself, resulting in the actual use of leakage maintainer rated current, the lower the sensitivity, the larger the rejection rate.
Fourth, LED electronic display leakage maintainer in the rated leakage action current and rated leakage current between the action uncertainty region, leakage maintainer leakage current fluctuations in this region, may lead to leakage maintainer irregular trip.
The above reasons are the common reasons for frequent tripping of LED electronic display, so you understand how much?
Translated with www.DeepL.com/Translator (free version)