A kind of novel GN10 indoor high-voltage isolating switch
Technical field
The utility model relates to field of electrical equipment, specifically a kind of novel GN10 indoor high-voltage isolating switch.
Background technology
Isolating switch (English name disconnector, be commonly called as " disconnecting link "), generally refer to high voltage isolator, be mainly used in exchanging 10-40.5kv, in 50HZ electric power system, carry out the charged high-tension line of load changing-over and isolate charged high-tension line with by the electrical isolation of the electric equipments such as the high voltage bus that overhauls or circuit breaker.The main feature of isolating switch is without arc extinguishing ability, can only divide, closing circuit when not having load current.The field such as the extensive suitable power of product, railway, mine, oil field.The principles and structure of itself is fairly simple, but due to use amount large, functional reliability requires high, all larger on the impact of the design of electric substation, power plant, foundation and safe operation.
Existing high voltage isolator comprises: two are vertically fixed on the insulation column on mounting panel, insulation column is fixed with dynamic and static contact respectively, two insulation columns are also provided with the binding post corresponding with dynamic and static contact, wherein, what be connected with moving contact is the first binding post, and what be connected with fixed contact is the second binding post, connects two disconnecting links side by side between two contacts, one end of two disconnecting links is articulated with fixed contact, and the other end can close with moving contact or be separated.
Existing high voltage isolator structure has the following disadvantages:
1, existing market switch tool with engage between contact and may produce gap, but do not eliminate the measure of this gap, disconnecting link, contact are electrically connected with terminal and form loop, due to the impact of compactness connected between parts, increase the risk of return loss, cause the loop resistance of whole high voltage isolator larger;
2, existing switch, contact knife spacing is narrow, is unfavorable for heat radiation, causes temperature rise too high, affect switch stable operation;
3, existing isolation switch insulation column, selection is various, and the adaptive capacity to environment of product and proof voltage grade are not very high.
Utility model content
For solving the technical problem of above-mentioned existence, the utility model provides a kind of novel GN10 indoor high-voltage isolating switch, contact knife is high with fingertip degree of engagement, Stability Analysis of Structures, breaking-closing operating is steadily reliable, heat-sinking capability is strong, has good conductivity and excellent quality, conforms strong with corrosion resistance.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of novel GN10 indoor high-voltage isolating switch, include base, post insulator and current-carrying part, described post insulator is arranged on base, current-carrying part is fixedly installed on post insulator, described current-carrying part includes rectangular tube, wiring copper bent plate, fixed contact and disconnecting link, described base is fixedly installed two post insulators, each described post insulator is fixedly installed rectangular tube, rectangular wiring copper bent plate is set up in each rectangular tube both sides, wiring copper bent plate on a rectangular tube is fixedly installed fixed contact, wiring copper bent plate on another rectangular tube is fixedly installed conduction copper billet, described disconnecting link is made up of two-layer up and down, described base is provided with manual transmission, be rotationally connected with the levels of disconnecting link respectively, one end of described disconnecting link is connected with conduction copper billet, the other end can divide with fixed contact and be connected, divide-shut brake is realized under the drive of manual transmission or Electric Drive mechanism.
Described manual transmission includes the bearing with spherical outside surface of usheing to seat being arranged at base both sides, the rotating shaft of being with connecting lever and epoxy resin bonded fiber, described base two sides arrange porose, hole internal fixtion is usherd to seat bearing with spherical outside surface, the rotating shaft of described band connecting lever is connected with bearing with spherical outside surface of usheing to seat, described epoxy resin bonded fiber one end is connected with the rotating shaft of band connecting lever, and the other end passes through pinned connection with the upper and lower of disconnecting link respectively.
Described disconnecting link is set to be made up of four pieces of grooved copper coins, each two pieces of levels, and described fixed contact is set to be made up of two-layer four pieces of copper billets up and down, is connected during combined floodgate with the end face of disconnecting link.
The described conduction copper billet be connected with disconnecting link is set to four pieces, wherein two pieces be connected by wiring copper bent plate with the upper strata of disconnecting link, other two pieces be connected by wiring copper bent plate with the lower floor of disconnecting link, and be arranged at the both sides of rectangular tube respectively, the thickness of two pieces, described upper strata conduction copper billet is less than the thickness of lower floor two pieces conduction copper billet.
Be provided with screwed hole in described rectangular tube, by bolt, with disconnecting link, space adjustment engaged to fixed contact.
All conductive component outer surfaces all arrange silver coating.
Described post insulator adopts epoxide resin material to make, and periphery is provided with the cluster parachute of the identical umbrella leaf composition of diameter.
The utility model structure is simple, and solid and reliable, stable performance, is finely tuned by the contact-making surface of the bolt in rectangular tube to disconnecting link under "on" position and fixed contact, and disconnecting link is engaged with fixed contact tightly; Add large lock spacing, increase area of dissipation, be conducive to reducing temperature rise, effectively strengthen radiating effect; Improve the mechanical strength of disconnecting link, the dynamic stability of switch improves, and the mounting means of disconnecting link and contact source mode, add the fail safe of device busy state; Component materials for isolating switch has carried out improving process, improves overall adaptive capacity to environment and proof voltage grade, corrosion resistance.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the utility model integral installation figure.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
As shown in Figure 1, this GN10 indoor high-voltage isolating switch, include base 1, post insulator 2 and current-carrying part, described post insulator 2 is arranged on base 1, current-carrying part is fixedly installed on post insulator 2, described current-carrying part includes rectangular tube 5, wiring copper bent plate 3, fixed contact 4 and disconnecting link 6, described base 1 is fixedly installed two post insulators 2, each described post insulator 2 is fixedly installed rectangular tube 5, rectangular wiring copper bent plate 3 is set up in each rectangular tube 5 both sides, wiring copper bent plate on a rectangular tube 5 is fixedly installed fixed contact 4, wiring copper bent plate on another rectangular tube 5 is fixedly installed conduction copper billet 7, described disconnecting link 6 is made up of two-layer up and down, described base 1 is provided with manual transmission, be rotationally connected with the levels of disconnecting link 6 respectively, one end of described disconnecting link 6 is connected with conduction copper billet 7, the other end can divide with fixed contact 4 and be connected, divide-shut brake is realized under the drive of manual transmission or Electric Drive mechanism.
As preferred mode, described manual transmission includes the bearing with spherical outside surface 9 of usheing to seat being arranged at base 1 both sides, the rotating shaft 10 of being with connecting lever and epoxy resin bonded fiber 11, described base 1 two sides arrange porose, hole internal fixtion is usherd to seat bearing with spherical outside surface 9, the rotating shaft 10 of described band connecting lever is connected with bearing with spherical outside surface 9 of usheing to seat, described epoxy resin bonded fiber 11 one end is connected with the rotating shaft 10 of band connecting lever, and the other end passes through pinned connection with the upper and lower of disconnecting link 6 respectively.
As preferred mode, described disconnecting link 6 is set to be made up of four pieces of grooved copper coins, each two pieces of levels, and described fixed contact 4 is set to be made up of two-layer four pieces of copper billets up and down, is connected during combined floodgate with the end face of disconnecting link 6.
As preferred mode, the described conduction copper billet 7 be connected with disconnecting link 6 is set to four pieces, wherein two pieces be connected by wiring copper bent plate 3 with the upper strata of disconnecting link 6, other two pieces be connected by wiring copper bent plate 3 with the lower floor of disconnecting link 6, and be arranged at the both sides of rectangular tube 5 respectively, the thickness of two pieces, described upper strata conduction copper billet is less than the thickness of lower floor two pieces conduction copper billet.
As preferred mode, be provided with screwed hole in described rectangular tube 5, by bolt, with disconnecting link 6, space adjustment engaged to fixed contact 4.
As preferred mode, all conductive component outer surfaces all arrange silver coating.
As preferred mode, described post insulator 2 adopts epoxide resin material to make, and periphery is provided with the cluster parachute of the identical umbrella leaf composition of diameter.
Isolating switch disclosed in the utility model is applicable to level and installs or at right angle setting, during switch divide-shut brake, realizes breaking-closing operating with man-operating mechanism or motor drive mechanism.
During separating brake, mechanism drives the rotating shaft 10 of band connecting lever to rotate, and drives disconnecting link 6 separately by epoxy resin bonded fiber 11.
Its shaft 10 to be usherd to seat roller bearing units 9 through UCF207 between two parties, disconnecting link 6 is connected with conduction copper billet 7 by pivot joint screw rod, required clamping force is provided by the compression spring 8 outside disconnecting link, the fixed contact 4 of wiring copper bent plate 3 both sides and conduction copper billet 7 upper-thin-lower-thick, effectively can avoid the excessive friction of lower disconnecting link 6, extend the silver coating life-span, wherein the back lash of disconnecting link 6 and fixed contact 4 can have the bolt on rectangular tube 5 to finely tune, rectangular tube 5 is fixed on post insulator 2, post insulator 2 adopts epoxide resin material, for cluster parachute identical up and down, strengthen the stability of switch and the reliability of insulation against ground.
During combined floodgate, mechanism drives rotating shaft 10 to rotate, and pull disconnecting link 6 to rotate by epoxy resin bonded fiber 11, by mechanism's anglec of rotation and angle of crank arm, the combined floodgate realizing disconnecting link 6 puts in place.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection range of the present utility model.