摘要:
본 발명은 제품의 전원 절전방법을 개시한 것으로, 이러한 본 발명은 제품의 전원공급단은 제 1 전원부와 제 2 전원부로 이원화시키고, 제어단을 메인제어부와 저전력 사용의 절전제어부으로 이원화시켜 구성한 것이며, 이에따라 제품의 사용전 또는 사용후를 포함하여 사용자가 제품을 사용하지 않거나, 전원콘센트에서 전원코드를 임의로 분리 또는 차단하거나, 제품에서 별도의 조작이 없더라도 대기모드로 동작중인 상태에서 제품 자체적으로 사용 유무를 상시 모니터링하고 판단하여 스스로 절전기능을 수행하여 제품의 대기전력 사용량을 국가규격보다 현저하게 절감하면서 제품의 대기모드 동작시 불필요하게 낭비되는 전력소모를 최소화시키는 등 편리하고 친환경적으로 에너지절약 및 효율을 향상시킨 것이다.
摘要:
A control system for separating the fault section of a distribution line determines the error of a distribution line by using the detection signal of a sensor unit installed in the constant range of the distribution line, thereby operating an automatic switchgear to block an existing line and pauselessly connecting the current and voltage of the distribution line through a bypass line. The present invention determines the error range of a distribution line, prevents wide area blackout by quickly connecting a bypass line when there is an error in the distribution line, and pauselessly connects the current and voltage of the distribution line. The present invention stably performs separation and return when there is an error in the distribution line, thereby reliably controlling the current and voltage of the distribution line.
摘要:
PURPOSE: A switching device for driving emergency power in power failure drives emergency power in time by detecting exact power failure of external and internal factors. CONSTITUTION: A drive switching device (300) includes an ammeter (310), a determination part (320), and a control part (330). The ammeter detects a current flowing through a ground terminal of an electrical supply wiring system in a building. The determination part determines the power failure by a change in a current amount measured from the ammeter. The control part operates emergency power, which is used for supplying power to the building in power failure, if the power failure is determined by the determination part. The determination part has a current amount in power failure and a current amount in normal in advance and uses the same as a reference value for comparing the detected current amount when determining the power failure. [Reference numerals] (100) Common use power supply; (210) Distribution system; (220) Load; (310) Ammeter; (320) Determination part; (330) Control part; (400) Emergency power supply; (AA) Building outside; (BB) Building inside
摘要:
PURPOSE: A power supply system for a rig is provided to normally operate even if a generator for supplying power to operate a thruster gets malfunction. CONSTITUTION: A power supply system for a rig comprises changeover switches(30,32,34,36), an auxiliary generator, and a signal processing unit. If an arbitrary main generator gets malfunction, the changeover switches connect one of a pair of thrusters(10,12,14,16) connected with switchboards(20,22) of the abnormal main generator to switchboards of a normal main generator. The auxiliary generator is connected the other thruster of the pair of the thrusters to supply electricity. The signal processing unit applies control signals to the switches to connect the other thruster and the auxiliary generator. The signal processing unit applies an operation starting signal to drive the auxiliary generator.
摘要:
PURPOSE: An interface module and an emergency electric power system including the same are provided to supply the received input to a controller by receiving a plurality of inputs. CONSTITUTION: A switch(114) receives a plurality of signals. A terminal unit(115) transmits a signal applied from the switch to a controller(100) of an emergency generation system. The terminal unit transmits the signal applied from the controller to the switch. The switch unit simultaneously receives a digital signal and an analog signal. The switch unit includes a plurality of shutdown alarm switches and emergency alarm switches. A shutdown alarm switch(111) transmits an alarm signal to the controller when the alarm of the shutdown condition is generated.
摘要:
PURPOSE: By controlling the rush current created in the initial charge process the dynamic voltage-dip controller prevents the malfunction of the dynamic voltage-dip controller. CONSTITUTION: It is connected to the input and the first rectifier(200) changes the alternating current into the direct current. The inverter(300) changes the direct current outputted in the first rectifier into the alternating current. In the high-cap(400) is the steady status, the charging current is emitted to inverter. The SH 1(210) is serially connected between high-cap and inverter. SH1 detects the charging current of high-cap. The voltage detector(220) is connected between the first rectifier and high-cap in parallel with the first rectifier.
摘要:
A simple power off apparatus of a television and a method therefor are provided to enhance convenience of a user by allowing a viewer to view the television directly without waiting for a power on time. A simple power off apparatus of a television includes a power switching unit, a key input unit(130), and a micro-computer(120). The power switching unit receives power from a power supply unit and selectively supplies the power to a plurality of structural elements. The key input unit includes a main power key(132) transmitting a main power on/off key signal and a simplified power key(134) transmitting a simple power on/off key signal. When the micro-computer receives the simple power off key signal from the key input unit by a user's selection, it transmits a control signal to the power switching unit to turn-off structural elements of a group B.