what are the causes of frequent tripping of full-color display wall? investigate the causes and how to solve them? below help you analyze. hope to solve your led full color display screen trip problem.
1. unreasonable layout of leakage protectors
because of the particularity of the installation site of full-color led display screen, such as wiring error, line breakage, leakage protector damage in switch box, some electrical appliances have not passed through switch box and so on, and the inevitable maloperation and refusal of leakage protector itself, coupled with the failure to use leakage protector according to the actual situation of electricity consumption. the arrangement results in frequent tripping of the total leakage protector.
in addition to strengthening management, it is also necessary to arrange leakage protectors reasonably according to the actual situation from the technical point of view. the leakage protector on the total power supply can be mainly used as the general protection against electric fire hazards and short circuit, as well as the backup protection for each small leakage protection range. its rated leakage current can be selected between 200 and 500 ma, and the rated leakage operation time can be selected from 0.2 to 0.3 s. in this way, the influence of surge voltage, surge current and electromagnetic interference on the total leakage protector can be greatly reduced, and the selectivity and reliability of the operation of the total leakage protector can be improved. if the secondary leakage protection within the scope of each leakage protection can be effectively protected, the frequent tripping probability of the total leakage protector in the construction site can be greatly reduced.
2. no effective secondary or tertiary leakage protection has been formed within the scope of protection.
the final leakage protector in the switch box is the main protection of the electrical equipment. if the last leakage protector is not installed, damaged or improperly selected, it may cause frequent tripping of the upper leakage protector. because there are many metal conductors and many wire joints in the full-color led display, if the conductor insulation is not very good, it will lead to frequent leakage; some sockets are added, and in many cases no leakage protector is installed, often resulting in leakage. only by forming an effective secondary or tertiary leakage protection mode within each protection range can frequent trips of leakage protectors be effectively reduced.
