Proved and High-quality DC ground monitoring system for Power plant and Substation

Yousung was founded in 1989 with confi dence to contribute to the future industrial engineering electricity through e-manufacturing of general switchgear, protection switchgear, monitoring controlling switchgear and R&D of digital protection relay, remote supervisory control system, electric power facility diagnosis and smart grid.

Also, it is exploring the global market, investment of regeneration energy, information and communications construction business and electrical works in buildings. It will keep satisfying its customers with its high-quality products through management innovation with valuecreation to achieve advanced electric power technologies and R&D based on its advanced management.

Representative Products of Yousung

The DC ground processing system is a leakage current detection device with alarm output function per each channel and fault record function in cases where a ground fault occurs, as it is always monitoring the leakage current in DC power supply line (P/ N phase) at the power plant or the substation through CT with communication. Furthermore, it features digital protection relay based on real-time operation and measurement method by removing noise interference. It is possible to select fault detection method on each channel and to extend and select channels.

Solid control relay is a GIS (Gas Insulated Switchgear) control device, which is the fast programmable logic controller in LCP (Local Control Panel) function of 25.8kV GIS. This hybrid system is combined with sealed relay and power semiconductor devices to replace the existing relays used in gas-insulated switchgear. It features interlock logic function based on PLC (Programmable Logic Controller), remote control function, real-time monitoring function, convenient program upload, connector lock type and energy saving.

Interlock module device is the fast programmable logic controller of 154/345kV Interlock Panel controller. This hybrid system is combined with sealed relay and power semiconductor devices. It features an interlock logic function based on PLC, remote control function, constant monitoring system, connector lock type, convenient user interface and event record system.

• Yousung Instrument & Electric, Co., Ltd.
70, Aenggogae-ro 556beon-gil, Namdong-gu, Incheon
Tel:(82-32)819-6135
Fax:(82-32)818-6137
E-mail: brian@yousung.com
Website: http://www.yousung.com

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