| Title |
Influences of the Length of Connecting Leads on the Energy Coordination in Coordinated SPD Systems |
| Authors |
Bok-Hee Lee; Hee-Kyung Shin |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2014.28.6.091 |
| Keywords |
Surge Protective Device ; Protection Effect ; Energy Coordination ; Voltage-Limiting SPD ; Protection Voltage Level ; Coordinated SPD System |
| Abstract |
For the purpose of designing and applying the optimum surge protection scheme, multi-stage coordinated surge protective device(SPD) system is suitable to successfully fulfill its tasks; first, to divert a large amount of the transient energy, second, to clamp the overvoltage to the level below the withstand impulse voltage of the equipment to be protected. The length of SPD connecting leads shall be as short as possible. Long connecting leads will degrade the protection effect of SPDs. In this paper, the influences of the length of connecting leads on the energy sharing in a coordinated SPD system were investigated experimentally, and the simulation of determining the energy sharing and protection voltage level of each SPD depending on the length of connecting leads was carried out by using P-spice program. It was confirmed that the protection voltage level and energy sharing in coordinated SPD systems are strongly influenced by the length of connecting leads. |