LED display frequent tripping in the end what is the reason, encounter display tripping what to do? Here LCF editorial and we come together to discuss.

First, the leakage protector layout unreasonable caused by tripping. Due to the special characteristics of the full-color LED display installation site, such as wiring errors, line damage, switch box leakage protector damage, part of the electrical appliances did not pass through the switch box and other reasons, as well as the leakage protector itself unavoidable misbehavior and refusal to act, coupled with not in accordance with the actual situation of the electricity leakage protector layout, resulting in the total leakage protector frequently tripped.

Second, LED display in the scope of protection does not form an effective secondary or tertiary leakage protection. Switch box in the final leakage protector is the main protection of electrical equipment, if the final leakage protector is not installed, damaged or improper selection, will probably lead to the upper leakage protector frequently tripped. Due to the full-color LED display many 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, in many cases are not installed leakage protector, often resulting in leakage. Only in each protection range to form an effective two or three leakage protection mode, in order to effectively reduce the frequent tripping of the leakage protector.

Third, the LED display leakage protector itself has certain limitations. The current leakage protector, 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 can not be arranged completely balanced. Full-color LED display of three-phase load can not be completely balanced, in the high current or higher overvoltage, there will be a very high permeability of the magnetic ring induced a certain electromotive force, the electromotive force is large to a certain extent, will lead to leakage protector tripped. Due to the rated current the larger the leakage protector using a relatively large magnetic ring, the resulting 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 the leakage protector the larger the rated current, the lower the sensitivity, the larger the rejection rate.

Fourth, full-color LED display leakage protector in the rated leakage action current and rated leakage current between the action uncertainty region, leakage protector leakage current fluctuations in this region, may lead to leakage protector irregular trip.

LED display in economic life is widely used, many enterprises and government departments and institutions organs will be used. In order to production and operation safety, LED display application units should and must have the necessary LED display fault solution.