Korea Electric Power Corporation

Other

Chung Hyo Kim

Seong Ho Ju

Yong Hun Lim

Sang Gon Kim

Jeong Han Yun

Moon Su Jang

Chang Hwan Sung

Moon Suk Choi

Woo Nyon Kim

Kyung Seok Jeon

Yeop Chang

Jong Mock Baek

Young Sung Lee

Jong Kwan Kim

Byung Gil Min

Jun Churl Yoon

The present invention relates to an apparatus for generating data quality information of electric power equipment, the apparatus including a data collector configured to collect a piece of measured data of electric power equipment, a storage configured to store a previous value and a set value for the piece of measured data, and a quality value generator configured to generate a quality value for the piece of measured data by applying the piece of measured data, the previous value, and the set value to a predetermined logic circuit.

Apparatus and method for generating data quality information of electric power equipment

The present invention relates to a device and a method for calculating stability and predicting an error of a power system network, the device comprising: a standard object information reception unit for receiving standard object information provided by a power system network; a connection state stability calculation unit for calculating connection state stability (S) using the standard object information; a connection time stability calculation unit for calculating connection time stability (S) using the standard object information; a network connection stability calculation unit for calculating a final network connection stability using the network connection state stability (S) and the connection time stability (S); and an error prediction information display unit for displaying error prediction information including at least one of network path information, a network state value, the final network connection stability, the connection state stability (S), and the connection time stability (S).

Device and method for calculating stability and predicting error of power system network

Provided is a ball check valve apparatus including: a first body into which wastewater is introduced; a second body coupled to the first body to be communicated with the first body and configured to discharge the wastewater introduced into the first body; and a valve member disposed in the first body such that the valve member is movable up and down in the first body and configured to close an opening/closing hole formed in the first body by a self-weight thereof and open the opening/closing hole by a pressure of wastewater introduced through the opening/closing hole.

Ball check valve apparatus

The present invention relates to a system and method for unidirectional data transmission. Data is unidirectionally transmitted from a network having a higher security level to a network having a lower security level and a corresponding data verification result is received through a separate line. Hence, it is possible not only to physically block access to the network having a higher security level from the network having a lower security level but also to improve reliability of data delivery by appropriately handling packet loss and bit errors that may occur during data transmission.

System and method for unidirectional data transmission

Growing community of inventors

Daejeon, South Korea

Chung Hyo Kim