Abstract: Embodiments of a distribution management system are disclosed. In some embodiments, a distribution management system enables to effectively provide geographic information system (GIS) data regarding an electric power application model applied to a supervisory control and data acquisition (SCADA) system using an international electrotechnical commission (IEC)-61968 standard, is a distribution management system based on IEC-61968, includes a GIS tool for generating GIS schema data, a GIS transfer unit for receiving the GIS schema data to transform the received GIS schema data into a format suitable for a standard, and one or more GIS distribution management applications connected to the GIS tool to receive the GIS schema data.

Abstract: The present invention relates to a transportation device of a withdrawable circuit breaker, and more particularly, to a transportation device of a withdrawable circuit breaker capable of simultaneously moving right and left handles of a girder assembly for restricting movement of the transportation device or releasing a restricted state. The transportation device of a circuit breaker includes: a truck assembly on which a body of the circuit breaker is loadable; a body plate of a girder assembly installed on a front surface of the truck assembly; a pair of sliding plates slidably installed in the body plate; and a rotation plate having both sides to which leg portions of the sliding plates are rotatably coupled, respectively, wherein the rotation plate is inserted into a lead screw penetratingly-formed at a central part of the girder assembly.

Abstract: A system includes a light fixture for installation at a location that is configured to be programmed to operate according to a control program. A communication interface is used for communication with the controller. An optical receiver of the fixture is configured for receiving an optical signal. The controller monitors provisioning commands received by the fixture and determines receipt of the provisioning commands in order to monitor inputs to the optical receiver and detect an optical selection signal for selecting the fixture. Upon detecting an optical selection signal the fixture processes commissioning commands. The controller, upon determining that the provisioning commands have not been received, further configured for ignoring inputs to the optical receiver so the fixture cannot be selected and programmed with commissioning commands.

Abstract: Disclosed embodiments relate to a power monitoring system. In some embodiments, the power monitoring system includes: a sampling device configured to measure patterns of energy consumed by loads included in the power system; an electric meter configured to measure an amount of second energy supplied from a system to the power system; a power supply configured to supply power stored therein or generate power to supply the power system and measure an amount of third energy supplied; and an external server configured to receive at least one of the patterns, the amount of the second energy and the amount of the third energy and analyze the patterns to acquire an amount of first energy for each of the loads. In some embodiments, the external server calculates at least one of the amount of the first, second and third energy.

Abstract: A communication system includes a first remote terminal unit (RTU) outputting first RTU data, a second RTU outputting second RTU data, and a remote control center applying a first RTU weight, which is a weight for the first RTU, to the output first RTU data and a second RTU weight, which is a weight for the second RTU, to the output second RTU data, and generating state estimation information for the first and second RTUs on the basis of the first and second RTU data to which each of the first and second RTU weights are applied.

Abstract: In a known method of measuring a target substance, comprising: providing a sample solution containing the target substance, a first reaction solution, and a second reaction solution; sequentially aspirating the sample solution and the first reaction solution, using a measuring apparatus equipped with a dispensing unit, into the dispensing unit; discharging them at a time from the dispensing unit, to bring them into contact with the second reaction solution, and to form a complex of the target substance and a first partner which is contained in at least one of the first reaction solution or the second reaction solution and reacts specifically with the target substance; and analyzing the resulting complex, an improved method capable of inhibiting a reaction which adversely affects measurement results is provided.

Abstract: The present invention relates to a system for analysis of partial discharge defects of a gas insulated switchgear capable of allowing a user to precisely analyze a defect of a gas insulated switchgear due to a partial discharge, by providing both partial discharge signal information on a partial discharge signal sensed by a detecting sensor, and detection signal information on a detection signal sensed by one or more neighboring sensors adjacent to the detecting sensor, to a monitor.

Abstract: An apparatus for detecting a defect of an electric power system according to one embodiment of the present disclosure includes a first state signal output unit for outputting a first state signal corresponding to a magnetic force generated at a periphery of a line, a second state signal output unit for outputting a second state signal based on a magnitude of a line current and an increase ratio thereof, and a determination unit for determining whether the electric power system is defective or not based on the first state signal and the second state signal.

Abstract: An inverter control device is disclosed. The device is configured: for determining a fundamental-wave magnitude of a phase-voltage corresponding to a modified voltage; for performing a proportional-integral (PI) operation of an error between the fundamental-wave magnitude of the phase-voltage and a magnitude of a reference voltage, and for outputting a compensation voltage; configured for adding the compensation voltage to the reference voltage to obtain an output; and for over-modulating the output and for outputting the over-modulated output as the modified voltage.

Abstract: The present disclosure relates to a high-voltage direct current (HVDC) transmission system, and particularly, to an HVDC transmission system control device associated with a power generation energy system. An HVDC transmission system control device according to an embodiment includes a wind power generation amount predicting unit configured to receive energy generated by a wind power generation device for a predetermined time, and predict a wind power generation amount on the basis of the received energy, a possible power generation amount predicting unit configured to determine an amount of energy generated by the wind power generation device and a transmission capacity corresponding to the amount of energy, on the basis of the predicted wind power generation amount, and a control unit configured to output energy to a power transformation device on the basis of the amount of energy and the transmission capacity predicted by the possible power generation amount predicting unit.

Abstract: The present invention relates to a fault diagnosis apparatus for a brake of a train, an automatic train operation system operated due to degradation of braking performance using the same, and a fault diagnosis method for the brake of the train. In particular, the present invention is directed to determining that a fault has occurred in the brake when the difference between the current acceleration of the train and the required acceleration is greater than or equal to a reference value and safely moving the train to a stopping point through a powering operation or coasting operation such that emergency braking is not applied by an automatic train protection (ATP) system if the fault has occurred in the brake. When a fault occurs in the brake of the train, the train is automatically operated such that emergency braking is not triggered by an ATP system.

Abstract: A needle assembly for pleural space insufflation is disclosed. The needle assembly has an outer shaft defining one or more pliable tissue receivers. The needle assembly also has a needle moveable within the outer shaft from a retracted position to an engaged position that does not extend past a distal end of the outer shaft. A method of pleural space insufflation is also disclosed. A parietal pleura is contacted with a distal end of an outer shaft that defines one or more pliable tissue receivers. The distal end of the outer shaft is pushed against the parietal pleura so that a portion of the parietal pleura enters the one or more pliable tissue receivers. A needle is advanced within the outer shaft so that the needle pierces the parietal pleura.

Abstract: The present invention relates to a multi-pole molded case circuit breaker, more particularly, to a multi-pole molded case circuit breaker having a safety device (with an isolation function) which prevents a manipulation handle from being moved to an off-position when a fusion occurs on a contact portion.

Abstract: A manual charging apparatus for a vacuum interrupter, including a motor for charging a closing spring mounted on a vacuum interrupter; a charging shaft configured to rotate by a rotational force of the motor; and a manual charging handle coupled to one end of the charging shaft and configured to manually rotate the manual charging handle, wherein the manual charging handle includes an insertion part formed in an cylindrical shape and inserted into one end of the charging shaft; an extension part vertically bent from the insertion part and extended to increase a revolution torque; and a handle part vertically bent from the extension part and configured to apply a manual operation force, and wherein the insertion part includes a rotation restriction means configured to restrict a rotation in one direction.

Abstract: An electric energy storage apparatus according to an embodiment may include a grid configured to supply first electric energy; a generator configured to supply second electric energy; and an electric energy storage apparatus configured to receive and store at least one of the first electric energy and the second electric energy, and supply the stored electric energy or the received electric energy to an electric load, wherein the electric energy storage apparatus senses a magnitude of electric energy discharged to the grid in an operation mode of supplying the stored electric energy to the electric load, and changes the operation mode when the sensed magnitude of electric energy exceeds a preset first threshold value.

Abstract: Disclosed is a device for detecting an output current of an inverter. The device for detecting an output current of an inverter according to the present disclosure includes a shunt resistor connected to an output end of a capacitor of a direct current (DC) link; a detector connected to the shunt resistor and configured to detect the output current; and a controller configured to control a sampling timing of a current in the detector.

Abstract: The constant voltage supplying circuit for a circuit breaker according the invention comprises: a first switching device; a constant current source configured to supply a constant current; a feedback circuit section commonly connected to an output terminal of each of the first switching device and the constant current source; a constant voltage source connected to the feedback circuit section, and configured to supply a constant voltage; a current adjusting circuit section connected to the output terminal of the first switching device, and configured to adjust an output current of the first switching device; and a divided voltage resistor section including a first resistor and a second resistor, and configured to provide a divided voltage of an output voltage of the constant voltage supplying circuit, to the feedback circuit section, through a connection node between the first resistor and the second resistor.