CN203423090U - Intelligent ring main unit with voltage protection function - Google Patents
Intelligent ring main unit with voltage protection function Download PDFInfo
- Publication number
- CN203423090U CN203423090U CN201320340150.8U CN201320340150U CN203423090U CN 203423090 U CN203423090 U CN 203423090U CN 201320340150 U CN201320340150 U CN 201320340150U CN 203423090 U CN203423090 U CN 203423090U
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- rotating shaft
- main unit
- isolation
- ring main
- arc extinguishing
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Abstract
The utility model discloses an intelligent ring main unit with a voltage protection function. The intelligent ring main unit with the voltage protection function includes a ring main unit body; the ring main unit body is internally provided with an electromagnetic operating mechanism, an upper isolating fracture and a vacuum arc extinguishing chamber; the lower end of the vacuum arc extinguishing chamber is connected with a lower isolating earthing switch; the upper isolating fracture includes an isolating rotating shaft, an upper separated static contact, and an upper separated moving contact; the isolating rotating shaft is connected with the upper separated moving contact; the vacuum arc extinguishing chamber comprises an arc extinguishing chamber rotating chamber, an arc extinguishing chamber static end, and an arc extinguishing chamber moving end; the arc extinguishing chamber rotating chamber and the arc extinguishing chamber moving end are connected; the electromagnetic operating mechanism comprises a rocker arm; and the rocker arm is respectively is connected with the isolating rotating shaft and the arc extinguishing chamber rotating shaft through an isolating rotating shaft crank arm and an arc extinguishing chamber rotating shaft crank arm. The electromagnetic operating mechanism is used for realize that the upper isolating fracture moves in the vacuum arc extinguishing chamber in the linked manner without the time delay, and the electricity is obtained by switching on.
Description
Technical field
The utility model relates to a kind of middle pressure ring main unit, relates in particular to a kind of intelligent ring main unit with voltage protection function.
Background technology
At present, known middle pressure ring main unit is to adopt spring operating mechanism substantially mostly, and electromagnetic operating mechanism is because switching current is large, uses at present lessly, in some old transformer and distribution stations, still uses.
Spring operating mechanism of the prior art is a kind of mechanical type operating mechanism of spring as energy-storage travelling wave tube of usining.The energy storage of spring completes by deceleration device by motor, and remains on energy storage state through fastener system.While cut-offfing, spring releases energy, and through mechanical transfer unit, makes contact motion.Switching-in spring and tripping spring are independently, and energy storage motor is only given switching-in spring energy storage, and tripping spring is generally by the energy storage of Switch main body feed motion. in closing circuit, be in series with energy storing of switch contact.Switch is when gate-dividing state, and tripping spring is energy storage not, and switching-in spring is through energy storage motor energy storage.During combined floodgate, switching-in spring releases energy, and gives tripping spring energy storage simultaneously.When switching-in spring releases energy, motor starts to switching-in spring energy storage, and now tripping spring energy storage, so switch can tripping when fault.
At least there is following shortcoming in above-mentioned prior art:
It is whether the energy storage that relies on energy storage device completes that spring operating mechanism closes a floodgate, when spring energy storage, mechanism obtains electric can combined floodgate immediately, and energy-stored spring not energy storage Shi， mechanism obtain electricly, must first energy storage could close a floodgate, the thermal energy storage process of spring probably needs about ten seconds, therefore, switch is from must electricly completing and need about ten seconds to combined floodgate, and switch is electric longer to the deadline of closing a floodgate from obtaining.
Utility model content
The purpose of this utility model be to provide a kind of without time lag, the electric intelligent ring main unit with voltage protection function closing a floodgate.
The purpose of this utility model is achieved through the following technical solutions:
The intelligent ring main unit with voltage protection function of the present utility model, comprises ring main unit body, in described ring main unit body, is provided with electromagnetic operating mechanism, upper isolation fracture and vacuum interrupter, and the lower end of described vacuum interrupter is connected to lower isolation earthing switch;
Described upper isolation fracture comprises isolation rotating shaft, upper isolation fixed contact, upper isolation moving contact, and described isolation rotating shaft is connected with described upper isolation moving contact;
Described vacuum interrupter comprises arc control device rotating shaft, the quiet end of arc control device, movable end of arc extinguishing chamber, and described arc control device rotating shaft is connected with described movable end of arc extinguishing chamber;
Described electromagnetic operating mechanism comprises rocking arm, and by isolation rotating shaft connecting lever, rotating shaft is connected described rocking arm with arc control device with described isolation rotating shaft with arc control device rotating shaft connecting lever respectively.
The technical scheme being provided by above-mentioned the utility model can be found out; the intelligent ring main unit with voltage protection function that the utility model embodiment provides; owing to comprising electromagnetic operating mechanism, upper isolation fracture, vacuum interrupter, lower isolation earthing switch; by electromagnetic operating mechanism, realize isolation fracture and link at vacuum interrupter, without time lag, electricly close a floodgate.
Accompanying drawing explanation
The general structure schematic diagram of the intelligent ring main unit with voltage protection function that Fig. 1 provides for the utility model embodiment;
The internal structure schematic diagram of the intelligent ring main unit with voltage protection function that Fig. 2 provides for the utility model embodiment;
Fig. 3 a is the perspective view one of operating mechanism in the utility model embodiment;
Fig. 3 b is the perspective view two of operating mechanism in the utility model embodiment;
The operation principle schematic diagram of the intelligent ring main unit with voltage protection function that Fig. 4 provides for the utility model embodiment.
In figure:
1, air chamber, 2, pressure releasing chamber, 3, secondary chamber, 4, mechanism chamber, 5, cable vault, 6, upper isolation fixed contact, 7, upper isolation moving contact, 8, arc control device rotating shaft, 9, isolation rotating shaft, 10, be flexible coupling, 11, vacuum interrupter, 12, arc control device rotating shaft connecting lever, 13, rocking arm, 14, deciliter indication, 15, mechanism operation hole, 16, moving iron core, 17, isolation rotating shaft connecting lever, 18, coil, 19, lower isolation earthing switch, 20, bus.
Embodiment
To be described in further detail the utility model embodiment below.
The intelligent ring main unit with voltage protection function of the present utility model, its preferably embodiment be:
Comprise ring main unit body, in described ring main unit body, be provided with electromagnetic operating mechanism, upper isolation fracture and vacuum interrupter, the lower end of described vacuum interrupter is connected to lower isolation earthing switch;
Described upper isolation fracture comprises isolation rotating shaft, upper isolation fixed contact, upper isolation moving contact, and described isolation rotating shaft is connected with described upper isolation moving contact;
Described vacuum interrupter comprises arc control device rotating shaft, the quiet end of arc control device, movable end of arc extinguishing chamber, and described arc control device rotating shaft is connected with described movable end of arc extinguishing chamber;
Described electromagnetic operating mechanism comprises rocking arm, and by isolation rotating shaft connecting lever, rotating shaft is connected described rocking arm with arc control device with described isolation rotating shaft with arc control device rotating shaft connecting lever respectively.
Described upper isolation fixed contact comprises two beryllium-bronze contact blades, and the outside of two beryllium-bronze contact blades is respectively equipped with contact stage clip.
Described upper isolation moving contact is connected with conductive clip by being flexible coupling, and described conductive clip and described movable end of arc extinguishing chamber are threaded connection.
Described lower isolation earthing switch is isolation earthing switch under three stations.
The intelligent ring main unit with voltage protection function of the present utility model, has solved middle pressure ring main unit and has obtained the problem that electric combined floodgate lags behind.
Specific embodiment:
As shown in Figure 1 and Figure 2, comprise ring main unit body construction, bus connecting mode, vacuum interrupter and upper isolation fracture linkage structure, lower isolation earthing switch structure, electromagnetic operating mechanism etc.Electromagnetic operating mechanism when electric, utilize electric magnetisation, the principle of the raw power of magnetic, closes a floodgate switch immediately, switching current, below 17A, closes a floodgate and keeps electric current being not more than 0.5A, obtains electric closing time and is not more than 180ms.
Ring main unit adopts vacuum interrupter and upper isolation fracture linkage structure, realizes isolation fracture minute rear 10ms before vacuum interrupter closes move by electromagnetic operating mechanism.Isolation earthing switch under termination three stations under vacuum interrupter.Upper isolation fixed contact adopts beryllium-bronze structure, and contact stage clip is arranged on to contact blade outside, increases contact pressure, reduces contact resistance.Dynamic/static contact adopts the face way of contact, enlarge active surface.Upper isolation moving contact is connected with conductive clip by being flexible coupling, and conductive clip and movable end of arc extinguishing chamber are threaded connection, and the quiet end of arc control device is threaded connection on fixed contact pedestal, and fixed contact pedestal is fixed on insulating supporting.
As shown in Figure 3 a, 3 b, the rocking arm that vacuum interrupter and upper isolation fracture deciliter linkage complete are crossed electromagnetic operating mechanism rotates realization, the arc control device rotating shaft connecting lever of controlling vacuum interrupter is all connected on rocking arm by roller and pin with the isolation rotating shaft connecting lever of controlling isolation fracture, when electromagnetic operating mechanism breaking-closing operating; rocking arm rotates; drive arc control device rotating shaft connecting lever and isolation rotating shaft connecting lever to rotate, thereby realized the interlock of upper isolation fracture and vacuum interrupter.
The operation principle of ring main unit is as shown in Figure 4:
Vacuum interrupter adopts electromagnetic operating mechanism to realize vacuum interrupter and the interlock of upper isolation fracture.When electromagnetic operating mechanism obtains electric, travel switch 1CK is normally closed closed, relay J DQ energising, its normally opened contact is closed, closing coil is by the direct current through rectifying block 4DX full-wave rectification, and iron core adhesive, drives electromagnetic operating mechanism rocking arm to rotate; rocking arm drives arc control device rotating shaft connecting lever and the rotation of isolation rotating shaft connecting lever, thereby realize switch, closes a floodgate.After combined floodgate, the normally closed point of electromagnetic operating mechanism travel switch 1CK disconnects, relay electric-loss, and its contact disconnects.Now holding circuit changes into: through 5DX halfwave rectifier, through parallel resistance, hold-in winding BQ and closing coil HQ form loop.
The beneficial effect that the utility model brings is:
Ring main unit has upper isolation fracture and lower isolation earthing switch, has realized the linkage function of upper isolation fracture and vacuum interrupter, and without obtaining electric closing function time lag, switching current is not more than 17A, maintains electric current in 0.45A left and right.Vacuum interrupter deciliter rotates and realizes by rotating shaft, has reduced driving member.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (4)
1. an intelligent ring main unit with voltage protection function, comprises ring main unit body, it is characterized in that, in described ring main unit body, is provided with electromagnetic operating mechanism, upper isolation fracture and vacuum interrupter, and the lower end of described vacuum interrupter is connected to lower isolation earthing switch;
Described upper isolation fracture comprises isolation rotating shaft, upper isolation fixed contact, upper isolation moving contact, and described isolation rotating shaft is connected with described upper isolation moving contact;
Described vacuum interrupter comprises arc control device rotating shaft, the quiet end of arc control device, movable end of arc extinguishing chamber, and described arc control device rotating shaft is connected with described movable end of arc extinguishing chamber;
Described electromagnetic operating mechanism comprises rocking arm, and by isolation rotating shaft connecting lever, rotating shaft is connected described rocking arm with arc control device with described isolation rotating shaft with arc control device rotating shaft connecting lever respectively.
2. the intelligent ring main unit with voltage protection function according to claim 1, is characterized in that, described upper isolation fixed contact comprises two beryllium-bronze contact blades, and the outside of two beryllium-bronze contact blades is respectively equipped with contact stage clip.
3. the intelligent ring main unit with voltage protection function according to claim 2, is characterized in that, described upper isolation moving contact is connected with conductive clip by being flexible coupling, and described conductive clip and described movable end of arc extinguishing chamber are threaded connection.
4. according to the intelligent ring main unit with voltage protection function described in claim 1,2 or 3, it is characterized in that, described lower isolation earthing switch is isolation earthing switch under three stations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320340150.8U CN203423090U (en) | 2013-06-14 | 2013-06-14 | Intelligent ring main unit with voltage protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320340150.8U CN203423090U (en) | 2013-06-14 | 2013-06-14 | Intelligent ring main unit with voltage protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423090U true CN203423090U (en) | 2014-02-05 |
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ID=50022182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320340150.8U Withdrawn - After Issue CN203423090U (en) | 2013-06-14 | 2013-06-14 | Intelligent ring main unit with voltage protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203423090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269018A (en) * | 2013-06-14 | 2013-08-28 | 北京合纵科技股份有限公司 | Intelligent ring main unit with voltage protective function |
| CN106504936A (en) * | 2016-09-23 | 2017-03-15 | 北京双杰电气股份有限公司 | A kind of double-fracture vacuum load switch |
-
2013
- 2013-06-14 CN CN201320340150.8U patent/CN203423090U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269018A (en) * | 2013-06-14 | 2013-08-28 | 北京合纵科技股份有限公司 | Intelligent ring main unit with voltage protective function |
| CN103269018B (en) * | 2013-06-14 | 2016-02-24 | 北京合纵科技股份有限公司 | There is the intelligent ring main unit of voltage protection function |
| CN106504936A (en) * | 2016-09-23 | 2017-03-15 | 北京双杰电气股份有限公司 | A kind of double-fracture vacuum load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140205 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |