CN204391008U - A kind of primary cut-out - Google Patents
A kind of primary cut-out Download PDFInfo
- Publication number
- CN204391008U CN204391008U CN201420835615.1U CN201420835615U CN204391008U CN 204391008 U CN204391008 U CN 204391008U CN 201420835615 U CN201420835615 U CN 201420835615U CN 204391008 U CN204391008 U CN 204391008U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- control device
- push rod
- arc control
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000001681 protective effect Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a kind of primary cut-out, comprise breaker body, described breaker body comprises case for circuit breaker, arc control device, push rod, insulating bar and operating mechanism, in case for circuit breaker, side is provided with arc control device, opposite side in case for circuit breaker is provided with operating mechanism, and case for circuit breaker is provided with the first conducting connecting part and the second conducting connecting part; Described arc control device are provided with upper end cover and bottom end cover, and arc control device lower end is provided with fixed contact, and push rod stretches in arc control device through bottom end cover, and push rod top is provided with moving contact, and moving contact is corresponding with fixed contact position.Establish heat dissipating layer and louvre in the utility model, dispel the heat in time, operating mechanism reduces moving component, do not need spring mechanism to realize the contact separation of moving contact and fixed contact, reduce the failure rate of circuit breaker, improve the reliability of primary cut-out, extend the useful life of primary cut-out.
Description
[technical field]
The utility model relates to technical field of electric equipment, particularly the technical field of primary cut-out.
[background technology]
Primary cut-out not only can cut off or no-load current in closed high circuit and load current, and when system jam by the effect of relay protection, cuts off overload electric current and short circuit current.The first, in high-tension circuit, play control action, according to power system operation needs, control section electric equipment and part circuit input or out of service; Second; shield in electric power system; when a certain section failure; energy and protective device, automatics match; excised rapidly from system by this faulty component, reduce power failure range, Accident prevention expands; in protection system, all kinds of electric equipment is not damaged, and can have the functions such as short-circuit protection, overload protection, earth leakage protective.
Primary cut-out cut-off that capacity can do in the fabrication process very high, mainly rely on and add current transformer and coordinate secondary device to protect.The primary structure of primary cut-out is divided into substantially: water diversion part, arc extinguishing part, insulated part, operating mechanism part.The main Types of high-voltage switch gear is divided into by arc-extinguishing medium: oil circuit breaker, air circuit, vacuum circuit-breaker, sulfur hexafluoride breaker, solid gas generant circuit breaker, air-break circuit-breaker.It is little, lightweight and be applicable to the advantage of frequent operation that high-pressure vacuum breaker has volume, applies comparatively general in power distribution network.
Will folding frequently during high-pressure vacuum breaker work, must reliably deciliter dynamic/static contact in time, long term frequent operates, and failure rate is high, and useful life is not long, and existing high-pressure vacuum breaker also Problems existing has and heats up higher, and radiating effect is bad.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of primary cut-out, dispels the heat in time, and operating mechanism reduces moving component, reduces the failure rate of circuit breaker, extends the useful life of primary cut-out.
For achieving the above object, the utility model proposes a kind of primary cut-out, comprise breaker body, described breaker body comprises case for circuit breaker, arc control device, push rod, insulating bar and operating mechanism, in case for circuit breaker, side is provided with arc control device, opposite side in case for circuit breaker is provided with operating mechanism, and case for circuit breaker is provided with the first conducting connecting part and the second conducting connecting part; Described arc control device are provided with upper end cover and bottom end cover, and arc control device lower end is provided with fixed contact, and push rod stretches in arc control device through bottom end cover, and push rod top is provided with moving contact, and moving contact is corresponding with fixed contact position; Described push rod lower end is connected with insulating bar by connecting rod, and insulating bar is connected with push rod by the first rocking bar, power transmission shaft, the second rocking bar successively, and push rod is arranged in operating mechanism.
As preferably, the both sides of described moving contact are provided with the first heat dissipating layer, and upper end cover and bottom end cover are equipped with the second heat dissipating layer.
As preferably, described case for circuit breaker is insulation crust, and case for circuit breaker lower end is provided with louvre.
As preferably, described arc control device are vacuum interrupter, and operating mechanism is permanent-magnet operating mechanism.
As preferably, described breaker body one end is connected with electrical network, and the other end of breaker body is connected with load, and the input of control system is connected with breaker body, and the output of control system is connected with breaker body by protective device.
As preferably, described protective device comprises switch transformer, integrated thyristor and auxiliary switch.
The beneficial effects of the utility model: establish heat dissipating layer and louvre in the utility model, timely heat radiation, operating mechanism reduces moving component, does not need spring mechanism to realize the contact separation of moving contact and fixed contact, reduce the failure rate of circuit breaker, improve the reliability of primary cut-out; The protective device increased in addition is at combined floodgate and protect circuit breaker when opening a sluice gate, and extends the useful life of primary cut-out.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of primary cut-out of the utility model;
Fig. 2 is the connection diagram of a kind of primary cut-out of the utility model.
In figure: 1-electrical network, 2-control system, 3-protective device, 4-load, 5-breaker body, 6-first conducting connecting part, 7-second conducting connecting part, 8-case for circuit breaker, 81-louvre, 9-arc control device, 91-fixed contact, 92-first heat dissipating layer, 93-moving contact, 10-upper end cover, 11-bottom end cover, 111-second heat dissipating layer, 12-push rod, 13-connecting rod, 14-insulating bar, 15-first rocking bar, 16-power transmission shaft, 17-second rocking bar, 18-push rod, 19-operating mechanism.
[embodiment]
Consult Fig. 1 and Fig. 2, the utility model, comprise breaker body 5, described breaker body 5 comprises case for circuit breaker 8, arc control device 9, push rod 12, insulating bar 14 and operating mechanism 19, in case for circuit breaker 8, side is provided with arc control device 9, opposite side in case for circuit breaker 8 is provided with operating mechanism 19, and case for circuit breaker 8 is provided with the first conducting connecting part 6 and the second conducting connecting part 7; Described arc control device 9 are provided with upper end cover 10 and bottom end cover 11, and arc control device 9 lower end is provided with fixed contact 91, and push rod 12 stretches in arc control device 9 through bottom end cover 11, and push rod 12 top is provided with moving contact 93, and moving contact 93 is corresponding with fixed contact 91 position; Described push rod 12 lower end is connected with insulating bar 14 by connecting rod 13, and insulating bar 14 is connected with push rod 18 by the first rocking bar 15, power transmission shaft 16, second rocking bar 17 successively, and push rod 18 is arranged in operating mechanism 19.The both sides of described moving contact 93 are provided with the first heat dissipating layer 92, and upper end cover 10 and bottom end cover 11 are equipped with the second heat dissipating layer 111.Described case for circuit breaker 8 is insulation crust, and case for circuit breaker 8 lower end is provided with louvre 81.Described arc control device 9 are vacuum interrupter, and operating mechanism 19 is permanent-magnet operating mechanism.Described breaker body 5 one end is connected with electrical network 1, and the other end of breaker body 5 is connected with load 4, and the input of control system 2 is connected with breaker body 5, and the output of control system 2 is connected with breaker body 5 by protective device 3.Described protective device 3 comprises switch transformer, integrated thyristor and auxiliary switch.
Utility model works process:
A kind of primary cut-out of the utility model in the course of the work, operating mechanism 19 drives push rod 18 to move, the second rocking bar 17, first rocking bar 15 is driven to rotate around power transmission shaft 16, thus drive insulating bar 14, connecting rod 13, push rod 12 to move, moved by push rod 12, realize being contacting and separating of moving contact on push rod 12 93 and fixed contact 91, control arc control device 9 and carry out realizing circuit and to disconnect and closed.When moving contact 93 contacts with fixed contact 91, produce larger heat, the first heat dissipating layer 92 that moving contact 93 place establishes, the second heat dissipating layer 111 that upper end cover 10 and bottom end cover 11 are established, case for circuit breaker 8 lower end is provided with louvre 81 and heat can be derived, and dispels the heat rapidly.The protective device 3 that in the connection of breaker body 5, increase by is controlled by control system 2, protective device can carry out protecting circuit breaker when closing a floodgate and open a sluice gate at breaker body 5, reduces electric arc, protection moving contact 93 and fixed contact 91.
Establish heat dissipating layer and louvre 81 in the utility model, dispel the heat in time, operating mechanism 19 reduces moving component, does not need spring mechanism to realize moving contact 93 and the contact separation of fixed contact 91, reduces the failure rate of circuit breaker, improve the reliability of primary cut-out; The protective device increased in addition is at combined floodgate and protect circuit breaker when opening a sluice gate, and extends the useful life of primary cut-out.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection range of the present utility model to the scheme after the utility model simple transformation.
Claims (6)
1. a primary cut-out, it is characterized in that: comprise breaker body (5), described breaker body (5) comprises case for circuit breaker (8), arc control device (9), push rod (12), insulating bar (14) and operating mechanism (19), case for circuit breaker (8) interior side is provided with arc control device (9), opposite side in case for circuit breaker (8) is provided with operating mechanism (19), and case for circuit breaker (8) is provided with the first conducting connecting part (6) and the second conducting connecting part (7); Described arc control device (9) are provided with upper end cover (10) and bottom end cover (11), arc control device (9) lower end is provided with fixed contact (91), push rod (12) stretches in arc control device (9) through bottom end cover (11), push rod (12) top is provided with moving contact (93), and moving contact (93) is corresponding with fixed contact (91) position; Described push rod (12) lower end is connected with insulating bar (14) by connecting rod (13), insulating bar (14) is connected with push rod (18) by the first rocking bar (15), power transmission shaft (16), the second rocking bar (17) successively, and push rod (18) is arranged in operating mechanism (19).
2. a kind of primary cut-out as claimed in claim 1, it is characterized in that: the both sides of described moving contact (93) are provided with the first heat dissipating layer (92), upper end cover (10) and bottom end cover (11) are equipped with the second heat dissipating layer (111).
3. a kind of primary cut-out as claimed in claim 1, is characterized in that: described case for circuit breaker (8) is insulation crust, and case for circuit breaker (8) lower end is provided with louvre (81).
4. a kind of primary cut-out as claimed in claim 1, is characterized in that: described arc control device (9) are vacuum interrupter, and operating mechanism (19) is permanent-magnet operating mechanism.
5. a kind of primary cut-out as claimed in claim 1; it is characterized in that: described breaker body (5) one end is connected with electrical network (1); the other end of breaker body (5) is connected with load (4); the input of control system (2) is connected with breaker body (5), and the output of control system (2) is connected with breaker body (5) by protective device (3).
6. a kind of primary cut-out as claimed in claim 5, is characterized in that: described protective device (3) comprises switch transformer, integrated thyristor and auxiliary switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835615.1U CN204391008U (en) | 2014-12-24 | 2014-12-24 | A kind of primary cut-out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835615.1U CN204391008U (en) | 2014-12-24 | 2014-12-24 | A kind of primary cut-out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391008U true CN204391008U (en) | 2015-06-10 |
Family
ID=53363705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420835615.1U Expired - Fee Related CN204391008U (en) | 2014-12-24 | 2014-12-24 | A kind of primary cut-out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204391008U (en) |
-
2014
- 2014-12-24 CN CN201420835615.1U patent/CN204391008U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |