96results about "Switches with unconnected briding contacts" patented technology

A loadbreak connector system and methods for visible break include first and second mating connector assemblies configured to make or break an electrical connection under energized circuit conditions, the first and second mating connectors selectively postionable relative to one another. One of the first and second mating connectors includes an arc follower, and the other of the first and second mating connectors includes an arc interrupter. The arc interrupter is configured to receive the arc follower, and the first and second meting connectors are positionable in an disconnected position wherein the arc follower remains engaged to and is located within the arc interrupter. Arc energy is distributed among multiple locations to reduce arc intensity.

For providing a power-circuit breaking device, which can easily mount a fuse and has a small number of component and a simple structure, the power-circuit breaking device includes a first connector housing having a pair of circuit terminals connected with a power circuit, and a second connector housing closing the power circuit by fitting with the first connector housing. The second connector housing includes a fuse having a pair of terminals to be connected with the pair of circuit terminals, a housing having a lock arm engaged with a cutout provided at the terminal and a cover an entry opening of a receiving section of the housing. The cover includes a limiter limiting the lock arm to move to disengaging the terminal.

The invention discloses an intelligent high-pressure dual power supply shift switch, comprising a gas seal box, three primary power supply terminals disposed on the gas seal box, three standby power supply terminals and three load terminals, and a power supply shift mechanism set in the gas seal box; characterized that: the switch also comprises a three-phase vacuum breaker device, the three-phase vacuum breaker device comprises three vacuum interrupters, three moving contacts, three static contact and a operation mechanism; each of the moving contact/static contact is connected with the corresponding primary power supply terminal/standby power supply terminal via the power supply shift mechanism, each of the static contact/moving contact is connected with a corresponding load terminal. The invention has the advantages of simple structure, low costs, suitable for eliminating potential security hazard effectively.

A contact assembly comprising a plurality of pairs of spaced apart fixed contacts supported in an electrically insulating body, an actuator displaceable relative to the body between first and second positions, and a plurality of movable contacts mounted on the actuator. Each movable contact is positioned on the actuator so as to interconnect the contacts of one of the pairs of fixed contacts only when the actuator is in one of the first and second positions. Each fixed contact has two limbs defining an L-shape, one limb defining a single leg which extends through an aperture formed in a partition defined by the body and the other limb extending to one side of the leg to define a head supporting a terminal for gripping a wire. Each movable contact is displaceable into contact with the leg of each of the respective pairs of fixed contacts on the side of the leg from which the head extends and on the side of the partition remote from the head.

A remotely controlled, motorized drive system for a disconnector used in switchgear. An operator pushes a button on a remote control, which signals a receiver in the disconnector to engage a motor that is coupled to a drive shaft. The drive shaft causes movable contacts of the disconnector to be moved into engagement or out of engagement with sets of fixed contacts in the switchgear that are connected to the line supply and to the circuit breaker that is bolted into the switchgear. One set of contacts is electrically coupled to the line supply, which can carry up to three phases of current. Another set of contacts is connected to corresponding terminals of the circuit breaker. A second motor controls movement of a grounding bar that grounds the circuit breaker to earth. Indicator lights on the switchgear panel indicate the position of the disconnector for visual confirmation of the same.

The invention discloses a combination right-angle isolating switch with a rapid ground switch, comprising a right-angle isolating switch part and a rapid ground switch part; the switch is characterized in that: the rapid ground switch part is combined with the right-angle isolating switch part in a same shell through the flange interface at one level side of the isolating switch shell, and connects the fixed contact of the rapid ground switch with a fixed contact of an isolating switch through a conductor; the conductor is vertically arranged on the flanged interface on upper and lower ends of the isolating switch shell. The invention compositely places the rapid ground switch at the side end of the GR type isolating switch shell, thereby enlarging the interface of the GR type isolating switch, so as to cause the connecting mode of the GR type isolating switch to be more flexible, has more plenty and diversified structure arrangement; because a base type insulator is removed, which saves material cost and has cabinet volume.

A power supply apparatus is equipped an assembled battery, a case that accommodates the assembled battery, and a connecting mechanism that is attached to an outside of the case, wherein the connecting mechanism connects two selected cells. The connecting mechanism includes a fixation portion and a disconnection portion. The fixation portion includes a first conductive plate that is directly connected to a positive electrode terminal of one of the two selected cells, and a second conductive plate that is directly connected to a negative electrode terminal of the other of the two selected cells, wherein the fixation portion is attached to the case. The disconnection portion is removable from the fixation portion, electrically connects the first conductive plate to the second conductive plate when attached to the fixation portion, and electrically disconnects the first conductive plate from the second conductive plate when removed from the fixation portion.

A double break disconnect switch with a novel drive mechanism that swings the blade open and closed in a conventional manner but the rotation with respect to its longitudinal axis is unique. This mechanism uses a unique cam to rotate the blade about a hinge axis. The blade bearings are of very small diameter to reduce friction and are offset from the blade center of gravity so as to use the blade's weight to keep the blade in disengagement with the break jaw contacts when the switch is opened. The blade bearings are not around the diameter of the blade, the friction does not increase as current rating increases. A camming mechanism is profiled to give maximum rotational torque to the blade as it compresses the contact fingers as the switch closes to its final position.

The invention discloses a three-position isolating-grounding switch. The three-position isolating-grounding switch comprises a moving end conductor, an grounding insulator, a grounding contact, a sliding contact, a static end conductor, a static end contact, a casing and a transmission rotary shaft. The grounding contact, the sliding contact and the static end contact are arranged on the same axis in sequence. The grounding contact is installed on the casing through the grounding insulator, the static end contact is connected with the static end conductor, the sliding contact is connected with the moving end conductor, and the static end conductor and the moving end conductor are respectively fixed on the casing and are insulated. A rack is embedded into the sliding contact, the transmission rotary shaft is provided with a gear matched with the rack, can drive the sliding contact to perform straight-line reciprocating motion along the axis, enable the sliding contact to be connected with the grounding contact or the static end contact, and can be not contacted with the grounding contact and the static end contact at the middle position. The three-position isolating-grounding switch achieves mechanical interlocking and improves the reliability.

The invention disclose a 1100kV ultra-high voltage isolating switch for opening and closing switching current of a high-parameter bus, which comprises a mounting base, insulators, a left fixed contact, a main knife switch, a right fixed contact and an operating mechanism, wherein a rotating bearing seat is arranged in the middle of the mounting base, fixed support saddles are arranged at two endsof the mounting base, the insulators are three-column insulators, the lower ends of the insulators are respectively fixed on the rotating bearing seat of the mounting base and the two fixed support saddles, the main knife switch is mounted on the middle insulator, the left fixed contact and the right fixed contact are respectively mounted at the insulators at two ends, and the operating mechanismfor driving the middle insulator to rotate is fixed below the mounting base. The 1100kV ultra-high voltage isolating switch has simple and compact structure, low cost, particularly strong capacity for opening and closing the switching current of the bus, high rated current parameter, excellent thermal stability, excellent dynamic stability and conductivity, high insulation performance, strong radio interference suppression capacity and the like.

The invention discloses a conducting loop structure. The conducting loop structure is characterized in that the sidewall of one side of a fixed contact, close to a rotating arm, comprises a first wall and a second wall which are distributed up and down; one end of the first wall is fixedly connected with the upper wall of the fixed contact while the other end of the first wall extends into the fixed contact; a first compressing spring is arranged between the other end of the first wall and the upper wall, and two ends of the first compressing spring are respectively connected with the upper wall and the first wall; one end of the second wall is fixedly connected with the lower wall of the fixed contact while the other end of the second wall extends into the fixed contact; a second compressing spring is arranged between the other end of the second wall and the upper wall, and two ends of the second compressing spring are respectively connected with the lower wall and the second wall; a clamping groove used for containing a moving contract is formed between the first wall and the second wall; and the moving contract is specifically a conducting plate which can be arranged into the clamping groove in a clamping manner. By adopting the conducting loop structure, the problem that the low switching-in success rate is generated to further impact the safety and stability of equipment and a power grid in running can be solved. The invention also provides a disconnecting switch comprising the conducting loop structure.

A high-voltage disconnection knife insulated by air for external use in high-voltage electrical transmission and distribution networks, the disconnection knife includes two copper arms for the disconnection or contact, mounted in a parallel relation to each other, a front and rear contact base, a turning support in the vicinity of the rear base such that the arms turn at one of its ends about an axis perpendicular to them, a central copper block for distribution of the current flowing through the copper arms; the distance between the arms is defined by the set of stainless steel axes, the copper block and the turning mechanism. At the ends of the disconnection arms an aluminum spring of with transverse section of gradually reduced thickness is connected to the external surface, said spring being fixed to the ends of the arms by means of a pair of stainless steel axes. The front and rear L-shaped bases are formed by the bending of a copper sill with rounded edges to define an area of contact.

The invention relates to the technical field of an outdoor AC high-voltage isolation switch, specifically a transmission system of the outdoor high-voltage isolation switch. The system comprises a frame beam, a switch mechanism, a main cutter, an insulation pillar, a connection base, a conductive pipe, a moving contact and a static contact, wherein a drive mechanism is connected with a vertical transmission link, which is connected with a transmission regulation crank of the main cutter arranged in the frame beam; the transmission regulation crank of the main cutter is connected with a first-stage transmission link, which is connected with the transmission regulation crank, which is connected with a main transmission shaft, which is respectively connected with six regulation cranks; two second-stage transmission rods of each phase are connected with the transmission regulation crank; and the two second-stage transmission rods of each phase are connected with the transmission regulation crank below the rotation shaft in a bearing pedestal. The rotation joint of the inventive transmission system is prevented from the direct corrosion of the rain and the snow, and the direct irradiation of the sunlight, thereby improving the anti-rust capacity of the transmission joint, and the six rotation shafts of three phases are applied with uniform force. The inter-phase transmission travel is not influenced by the temperature difference, and the operation is more flexible and reliable.

The invention relates to a high-current switch (1) comprising a first fixed contact (2), a second fixed contact spaced apart from the first fixed contact (3), and at least one contact bridge (4) that is movable relative to the two fixed contacts. Furthermore, an advancing device is provided for transferring the contact bridge (4) from an open position in which the two fixed contacts (2, 3) are not connected to one another into a closed position in which the contact bridge connects the two fixed contacts electrically to one another. The advancing device is also provided for pressing the contact bridge in the closed position against the two fixed contacts. According to the invention, the advancing device is designed without springs, wherein the rigidity of the contact bridge and the advancing device in the direction of the pressing force corresponds to a value of at least 50 000 kNmm2, and wherein the lowest natural frequency of the system consisting of the contact bridge and the advancing device in the direction of the pressing force is greater than 2000 Hz.

At the junction between a stationary contact (16) belonging to a common part of the network and two stationary contacts (14, 15) belonging to dividing parts of the network, such as busbars, an electrical switch comprises a single moving contact (21), the length of which allows same to enter a recess (22) in one or both of the fixed contacts, depending on the position thereof. The assembly is simplified and reduced in size.

The invention discloses a large current three-position double-fracture disconnecting switch. The large current three-position double-fracture disconnecting switch comprises moving cutters, a ground row, fixed contacts and moving cutter supports, wherein moving contact ends are arranged at the two ends of each moving cutter, each moving cutter comprises two contact pieces, and inner sides of the moving contact ends of the every two contact pieces are respectively provided with a contact face. The outer sides of the moving contact ends of the every two contact pieces are respectively provided with a magnetic locking plate, the moving contact ends and the magnetic locking plates of the every two contact pieces are connected through a bolt, and a belleville spring is arranged on the outer side of each magnetic locking plate. An arc-shaped pulling plate which is taken as a middle transmission component is eliminated, assembling difficulty is reduced, stress-bearing in contact is more even, and meanwhile current-carrying performance of the moving cutters are improved.