34results about "Switches with movable transmission contacts" patented technology

A smart load switch or smart plug incorporates a built-in circuit that can monitor a physical variable condition and compare that sensed condition to data stored in a memory. A controller receives input data from the measuring device, compares the data to the reference data in memory, and selectively controls the on / off condition of a switch and thus the device that is plugged into the switch.

A power supply with arc flash protection mechanism for providing power to a load is disclosed. The power supply comprises a first power connector including a plurality of power terminals and a first detecting terminal, a power conversion circuit, a control unit and a connection status detection circuit. The power terminals of the first power connector are configured to couple with a plurality of power terminals of a second power connector, and the first detecting terminal is configured to couple with a second detecting terminal of the second power connector and provide a detecting signal indicative of whether the second power connector is being disconnected with the first power connector. When the first detecting terminal is disconnected with the second detecting terminal, a power connection status signal of the connection status detection circuit is under disable status and the control unit controls the power conversion circuit not to generate or output the output voltage to the load.

Field-device electronics including an electric current adjuster, through which a supply current flows is driven by a supply voltage provided by the external energy supply and adjusted by the current adjuster. Additionally, the field-device electronics includes an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit feeding the internal operating and evaluating circuit. Provided in the supply circuit is a first useful-voltage controller flowed-through, by a first component of the supply current and a second useful-voltage controller flowed through, at least at times, by a second current component of the supply current and providing in the field-device electronics a second internal, useful voltage. The second useful voltage controller is fed by the first useful voltage delivered by the first useful voltage controller and / or a secondary voltage drived from the first useful voltage.

A circuit is used for preventing a computer from being powered up before a CPU voltage of the computer is prepared properly. The circuit includes a power supply for providing power to the computer, a power button for powering on the computer system, a power controller, and a switch. The power controller includes an input terminal connected to the power button and an output terminal for electrical connection to the power supply. The input terminal receives a PWRBT# signal when the power button is momentarily triggered, and the output terminal outputs a PSON# signal to the power supply to control the power supply to provide the electrical power to the computer in response to the received PWRBT# signal. The switch is serially connected between the output terminal and the power supply. The switch includes a control terminal monitoring if the CPU voltage is prepared properly so as to control conduction of the switch and further to control connection between the output terminal and the power supply.

Field-device electronics including an electric current adjuster, through which a supply current flows. The electric current adjuster adjusts and / or modulates the supply current. The supply current is driven by a supply voltage provided by the external energy supply. Additionally, the field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit lying at a field-device electronics, internal input voltage derived from the supply voltage and feeding the internal operating and evaluating circuit. Provided in the supply circuit is a useful-voltage controller flowed-through, at least at times, by a first component of the supply current. The useful-voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level. Moreover, the supply circuit has a second useful-voltage controller flowed through, at least at times, by a second current component of the supply current. The second voltage controller provides in the field-device electronics a second internal, useful voltage, which is variable over a predetermined voltage range. Also contained in the supply circuit is a voltage adjuster flowed-through, at least at times, by a third current component of the supply current. The voltage adjuster serves to set and maintain the internal input voltage of the field-device electronics at a predetermined voltage level. In accordance with the invention, the operating and evaluating circuit is flowed-through, at least at times, both by a first useful current driven by the first useful voltage, and by a second useful current driven by the second useful voltage.

An electrical load power control device is described that reduces the power consumption of inductive and inductive-dissipative loads, including for example fluorescent lighting. The power circuit of the invention interrupts AC power supply to the load during a plurality of intervals within each half cycle of the AC mains signal frequency whilst providing an alternate path for current flow during the interruption to maintain a sinusoidal-like current to the load. During a crossover lag zone encompassing zero crossing points of the voltage and current and during which the voltage and current have opposite polarities, both elements of the power switch are switched to the “on” condition, one element of the circulating switch is switched to the “on” condition when a positive current is flowing in the load and the other element of the circulating switch is switched to the “on” condition when a negative current is flowing in the load. The power factor presented by the load and other current parameters of the load such as form factor and total harmonic distortion may be desirably modified. In the preferred embodiment an oscillator has a duty cycle control circuit which deactivates the power switch during a predetermined portion of the oscillator duty cycle. The duty cycle establishes the amount of power reduction.

The present invention relates to an energy storage disconnecting switch used in extra-high voltage and ultra-high voltage grid, in particular, relates to a scissor-type disconnecting switch. With the principle of storing energy in spring, the present invention provides an energy storage spring case having energy storage spring therein, to release the spring energy to operate the disconnecting switch by using the stored energy, to satisfy the need for quick action of the electric disconnecting switch.

A smart load switch or smart plug incorporates a built-in circuit that can monitor a physical variable condition and compare that sensed condition to data stored in a memory. A controller receives input data from the measuring device, compares the data to the reference data in memory, and selectively controls the on / off condition of a switch and thus the device that is plugged into the switch.

According to the invention, a controlled or synchronous switching of an electrical power breaker (1) can be guaranteed by means of predicting a future voltage and / or current curve from actual voltage and / or current data in an electrical energy network (5). The prediction of the future voltage and / or current curve is carried out using the voltage and / or current data determined in the electrical network (5) at different timepoints by application of a Prony method to the available voltage and / or current data.

A circuit is used for preventing a computer from being powered up before a CPU voltage of the computer is prepared properly. The circuit includes a power supply for providing power to the computer, a power button for powering on the computer system, a power controller, and a switch. The power controller includes an input terminal connected to the power button and an output terminal for electrical connection to the power supply. The input terminal receives a PWRBT# signal when the power button is momentarily triggered, and the output terminal outputs a PSON# signal to the power supply to control the power supply to provide the electrical power to the computer in response to the received PWRBT# signal. The switch is serially connected between the output terminal and the power supply. The switch includes a control terminal monitoring if the CPU voltage is prepared properly so as to control conduction of the switch and further to control connection between the output terminal and the power supply.

This invention relates to an energy storage disconnecting switch, especially is a scissors-type disconnecting switch. This invention sets energy storage spring in the spring box based on the spring energy storage principle, releases the spring when the disconnecting switch needs motion and makes use of power of spring to control the motion of switch. It meets the demand of fast startup of electric switch.

Conductive segments (transmission line conductors) are positioned within a transmission line structure in order to generate multi-cycle microwave pulses. The conductor segments are switchably coupled to one or the other conductor of the transmission lines, inside the transmission line structure. Microwave pulses may be induced in the transmission line by closing the switches in a controlled manner to discharge successive segments, or successive groups of segments, into the transmission lines. The induced pulses travel uninterrupted along the transmission lines in a desired direction to the load. Efficiency of systems and energy delivered to the load in multi-section transmission lines is increased and / or maximized by adjusting the ratio of characteristic impedances associated with the transmission line conductor segments according to an optimum ratio.

Conductive segments (transmission line conductors) are positioned within a transmission line structure in order to generate multi-cycle microwave pulses. The conductor segments are switchably coupled to one or the other conductor of the transmission lines, inside the transmission line structure. Microwave pulses may be induced in the transmission line by closing the switches in a controlled manner to discharge successive segments, or successive groups of segments, into the transmission lines. The induced pulses travel uninterrupted along the transmission lines in a desired direction to the load. Efficiency of systems and energy delivered to the load in multi-section transmission lines is increased and / or maximized by adjusting the ratio of characteristic impedances associated with the transmission line conductor segments according to an optimum ratio.

The power supply includes a first power connector, a power conversion circuit, a control unit and a detection circuit. The first power connector includes a plurality of power terminals and a first detecting terminal. The power conversion circuit is coupled to the power terminals of the first power connector for converting an input voltage into an output voltage. The control unit is coupled to the power conversion circuit for controlling an operation of the power conversion circuit. The detection circuit is coupled to the control unit and the first detecting terminal of the first power connector for detecting if the first detecting terminal is connected or disconnected with a predetermined voltage terminal and correspondingly generating a power transmission status signal to the control unit. When the detection circuit detects the first detecting terminal is disconnected with the predetermined voltage terminal, the power transmission status signal is under a disabled status and the control unit controls the power conversion circuit not to generate or output the output voltage to the load according to the power transmission status signal.

A communication system controlled motorized in-line high voltage air break disconnect switch with a lock out system including a communication device remote controlled lock out. Also a mechanical lock out is provided if a battery that powers the remote controlled lock out is not functioning or other unforeseen problems cause a failure of the switch or the remote controlled lock out to operate. The remote controlled lock out when operative can prevent the switch from operating the motor when the remote controlled lock out is actuated. The motorized switch typically includes the motor having a worm drive shaft carrying a hookstick eye ring. The remote controlled lock out includes a locking gear mounted on the drive shaft. A lockout lever having a locking tooth is provided that engages or disengages the locking gear when appropriately actuated by the remote control to lock or unlock the switch blade drive motor.

The open-air switchgear has an open-air breaking interval and a first contact piece (5) and a second contact piece (6). The first contact piece (5) is movable relative to the second switch contact piece (6) by means of the drive device (3). The first contact piece (5) is arranged on the pivot arm (3b) of the drive device (3). The pivot arm (3b) is supported on the lifting transmission (3a).

A differential protection system including a plurality of inputs power cables for transfer of power from electric power generators, such as wind power generators, to an output cable. Each input and output power cable is provided with a respective circuit breaker. The protection system includes a plurality of protection equipment unit each being adapted to be arranged at a respective one of the input cables or at the output cable, each protection equipment unit including a measuring unit for measuring the current and voltage of the cable, and including a control unit being operatively connectable to the circuit breaker of the respective power cable for selectively tripping the circuit breaker when the protection system discovers a differential fault. The protection system includes a charging current compensator for compensating the differential protection for charging currents of the cables of the transfer system.

A disconnector (100) and a method for manufacturing the disconnector (100) are disclosed. The disconnector (100) includes conductive arms (110) pivotally coupled with each other, and finger contacts (111). The finger contacts (111) have two opposite ends (115, 116) and an elastic portion (113) between the two opposite ends (115, 116), each of the finger contacts (111) being fixed to the respectiveconductive arm (110) by fasteners (112) at the two opposite ends (115, 116) such that the elastic portion (113) presses against the conductive arm (110). In response to the conductive arms (110) being pivoted toward each other and clamping an electrical contact (200) hanged at a bus-bar above the disconnector (100), the conductive arms (110) are electrically coupled with the electrical contact (200) via the respective finger contacts (111). The disconnector (100) according to the disclosure provides outstanding contact performances while the material costs as well as manufacturing and assembly costs are relatively low.

A semi-pantograph disconnector, comprising - a base (11), which supports a motor kinematic system (12), - an arm (13), which has a shoe (14) for gripping a dropper (15) and is hinged to the base (11) so as to be able to oscillate in order to pass reversibly from a disconnection configuration, in which the arm (13) is collapsed onto the base (11), to a contact configuration, in which the arm (13) is divaricated from the base (11) so as to connect by means of the shoe (14) to the dropper (15), - a rod (16), which is functionally connected to the shoe (14) in order to actuate it, - a cam device (17) for actuating the rod (16), which coordinates kinematically the opening of the shoe (14) and a first rotation of the arm (13) from the disconnection configuration to the contact configuration, - a semi-pantograph device (18), which is functionally connected to the rod (16), to the arm (13) and to the motor kinematic system (12), defining a kinematic sequence for closing the shoe (14), after the first rotation of the arm (13), and a kinematic sequence for opening the shoe (14), which is preliminary to a second rotation of the arm (13) which moves it from the contact configuration to the disconnection configuration.

A sensor system for measuring an angle of a gate of an isolating switch of overhead lines, comprising an optical fiber angle sensor, a base, a support plate, a light source fiber, a laser transmitter, an aluminum box, a relay, a step-down power module, a control circuit board, a photoelectric converter, and a receiving optical fiber. The support plate is arranged on an upper part of a pillar insulator; the optical fiber angle sensor is arranged on the base to detect a rotation angle of the gate; the laser transmitter is controlled to emit a laser beam into the light source fiber; the laser beam is received by the receiving optical fiber and transmitted to the photoelectric converter to convert a light intensity into a voltage signal; the converted voltage signal is transmitted to the control circuit board for processing, and the angle of the gate is output.

The invention relates to a switching device for an air-insulated high-voltage disconnector, comprising at least a main switch and an auxiliary switch, the main switch comprising a single-pole disconnector having at least one movable contact arm and a fixed mating contact; the auxiliary switch comprises a vacuum switch chamber, the vacuum switch chamber is provided with an electric switch and at least one control element arranged on the switch, and the vacuum switch chamber is conductively arranged on the matching contact piece of the main switch; the electrical switch of the vacuum switching chamber is configured in such a way that an electrically conductive connection between the mating contact of the main switch and the movable contact arm of the main switch is established or interrupted by the movable contact arm of the main switch via an operating element, and the operating element of the vacuum switching chamber is arranged in such a way that the mating contact of the main switch is electrically connected to the movable contact arm of the main switch. The electric switch of the vacuum switch chamber is switched on before the main switch is switched on and is switched off after the main switch is switched off.

Disclosed are an isolating switch (100) and a method of manufacturing the isolating switch (100). The isolating switch (100) includes conductive arms (110) pivotally coupled to each other, and conductive contact fingers (111). The conductive contact fingers (111) have two opposite ends (115, 116) and an elastic portion (113) located between the two opposite ends (115, 116), and each conductive contact finger (111) passes through the The fasteners (112) at its two opposite ends (115, 116) are fixed to the corresponding conductive arms (110) so that their elastic parts (113) press against the conductive arms (110). In response to the conductive arms (110) pivoting towards each other and clamping the electrical contacts (200) suspended at the busbars above the disconnect switch (100), the conductive arms (110) communicate with the electrical contacts via corresponding conductive contact fingers (111) The head (200) is electrically coupled. The disconnect switch (100) according to the present disclosure provides outstanding contact performance, while its material cost and manufacturing and assembly costs are relatively low.

A sensor system for measuring an angle of a gate of an isolating switch of overhead lines, comprising an optical fiber angle sensor, a base, a support plate, a light source fiber, a laser transmitter, an aluminum box, a relay, a step-down power module, a control circuit board, a photoelectric converter, and a receiving optical fiber. The support plate is arranged on an upper part of a pillar insulator; the optical fiber angle sensor is arranged on the base to detect a rotation angle of the gate; the laser transmitter is controlled to emit a laser beam into the light source fiber; the laser beam is received by the receiving optical fiber and transmitted to the photoelectric converter to convert a light intensity into a voltage signal; the converted voltage signal is transmitted to the control circuit board for processing, and the angle of the gate is output.

The invention relates to a contact arm (2) for a single-column isolating switch (1) and its use, said contact arm having at least one profile body (5) and at least one contact element (6). The at least one profile body (5) is designed as a rod and the at least one contact element (6) is designed as a strip with a T-shaped profile. The method of applying the contact arm (2) includes, in a state where the current path of the single-column isolating switch (1) is connected, the T-shaped contact element (6) of the movable contact arm (2) is fixed on the contact arm ( The profile body (5) of 2) is in electrical and mechanical contact with a fixed contact (19), in particular a fixed contact (19) in the form of a round bar.