[INQ. NO. 2206M03] Dong Yang EEC Co., Ltd., established in 1998, has focused on developing line-protection switches for the Korea Electric Power Corporation (KEPCO), beginning with inspection of the KEPCO distribution line protector.
As a result, Dong Yang EEC has become one of the few companies in Korea to have developed eco-friendly products such as epoxy insulated load break switches (pad mounted), polymer lightning arresters with lead wire, and eco-friendly pole mounted switches, as well as pad-mounted SF6 gas insulated load break switches, pole-mounted load break switches and automatic sectionalizing switches.
In addition, by establishing an R&D center, Dong Yang EEC ceaselessly strives to implement strategic policies and achieve quality-system assurance.
Eco Load Break Switch (LBS)
This was designed to improve the defects in the SF6 gas insulated load break switch and to enhance electric power distribution lines. Eco LBS consisting of cycloaliphatic epoxy material, is designed to be an explosion-free product, unlike SF6 gas insulated LBS with low gas pressure condition.
Eco LBS pursues not only the protection of the environment but also overcomes its fatal disadvantages. Eco LBS uses a vacuum interrupter and enhanced its switching capability, as well as eliminating any possibility of explosion by adopting the solid dielectric method. In addition, it is free from periodic gas leaks and gas refilling tests.
Polymeric Housing Surge Arrester
This product is a kind of overvoltage limitation. When overvoltage occurs, the voltage between two terminals of the surge arrester does not exceed the designated value, thus ensuring that the electric apparatus avoids damage caused by overvoltage, and thus enables the system to return to normal condition rapidly.
Dong Yang EEC’s polymeric housing surge arrester is a gapless-type that uses a ZnO element with excellent non-linear resistance coefficient characteristics.
With the ZnO element, the operation characteristics for multiple lightning and multiple surge, and anti-pollution features have been significantly improved. In addition, operating duty is available under a large current corresponding to discharge to withstand current rating.
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