Abstract: The present disclosure relates to a thermal image monitoring apparatus and a distributing panel having the same. According to the present disclosure, a rotation-vibration reduction unit and a horizontal vibration reduction unit can prevent relative sliding between a base and a bracket and between the bracket and a thermal image camera, and also reduce vibration in a rotating direction or one direction by virtue of contact with each other.

Abstract: The present invention relates to a trip device for a molded case circuit breaker and, more specifically, to an electronic trip device for a molded case circuit breaker. The electronic trip device for a molded case circuit breaker, according to one embodiment of the present invention, comprises: a trip part case having a plurality of phases; a trip part terminal provided at the rear surface part of the trip part case and provided for each phase; and a voltage sensing conductor coupled between the rear surface part and the trip part terminal and provided for each phase, wherein the voltage sensing conductor provided for each phase is formed to have the same shape and the same size.

Abstract: A grid voltage stabilization system according to an embodiment of the present invention comprises: a power generation device for generating power by using a new and renewable energy source, and supplying the generated power to a grid; an energy storage system (ESS) for, according to a command value, storing power generated in the power generation device in a battery, or supplying power stored in the battery to the grid in the form of active power and reactive power; and a power management system (PMS) for, when a voltage value of the grid is out of a reference range, controlling the magnitude of the reactive power to be supplied to the grid such that the command value is changed according to the voltage value of the grid to enable the voltage of the grid to be within the reference range.

Abstract: The present disclosure relates to an earth leakage breaker and an arc detection apparatus attachable/detachable to/from the earth leakage breaker. An earth leakage breaker and an arc detection apparatus according to one embodiment of the present disclosure comprise: a body of the earth leakage breaker; and an arc detection module attachably/detachably coupled to the body of the earth leakage breaker so as to detect an arc current, wherein the arc detection module comprises: an arc detection unit connected to a first load side terminal of the body of the earth leakage breaker so as to detect an arc current flowing through a line; a control unit for determining an arc current on the basis of an arc detection signal delivered by the arc detection unit; and an output unit for outputting a signal or a current, according to a control signal of the control unit.

Abstract: A photovoltaic apparatus according to an embodiment of the present invention may comprise: a photovoltaic cell array for generating electricity by using solar energy; a battery energy storage system for charging electric energy supplied from the photovoltaic cell array and discharging the charged electric energy to a system; and a processor for controlling a generated power amount to be supplied to the system on the basis of the generated power amount of the photovoltaic cell array and power consumption of the photovoltaic apparatus.

Abstract: A DC circuit breaker according to various embodiments may comprise: a first terminal unit connected to a power source; and a second terminal unit connected to the first terminal unit and connected to a load, wherein the first terminal unit includes at least a pair of first terminals connected to each other in parallel and connected to the power source, and the second terminal unit includes at least a pair of second terminals corresponding respectively to the first terminals and connected to each other in parallel so as to be connected to the load.

Abstract: The present invention relates to an energy storage system. An energy storage system, according to an embodiment of the present invention, relates to an energy storage system for managing power of a system and a direct current (DC) distribution network linked with the system, the energy storage system comprising: a first converter connected between the system and the DC distribution network so as to control a voltage of the DC distribution network; a second converter connected to the DC distribution network; a load connected to the second converter, and controlling the voltage by means of the second converter; a battery connected to the DC distribution network; and a third converter connected between the battery and the load, and controlling discharge of the battery.

Abstract: The grid-connected inverter system according to one embodiment of the present invention may convert direct current supplied from a direct current source into alternating current, receive a control command from an upper level controller and a power electronics building block group comprising a plurality of power electronics building blocks for supplying the converted alternating current to a grid, determine the number of power electronics building blocks which will operate according to the control command, and transmit a control signal for operating the determined number of power electronics building blocks to corresponding power electronics building blocks.

Abstract: Disclosed is an air circuit breaker including a safety cover. According to embodiments disclosed herein, a setting unit of an overcurrent trip relay exposed to the outside through an opening is covered by the safety cover, and thus manipulation of the setting unit is not allowed before opening the safety cover. Accordingly, an accident due to malfunction or manipulation of the overcurrent trip relay by an unauthorized person may be prevented.

Abstract: A monitoring and load controlling system for a switchboard, according to one embodiment of the present specification, comprises: a gateway which acquires respective temperature information of circuit breakers included in a switchboard, and respective current amount information of lines corresponding to the circuit breakers, acquires respective capacity information of the circuit breakers on the basis of the acquired temperature information, and, on the basis of the acquired capacity information and current amount information, detects a circuit breaker corresponding to a line in need of load regulation; and a load controlling device which regulates the load of said line by stopping the operation of at least one device among devices connected to the detected circuit breaker.