CN111146695B - Combined electrical apparatus with port connector - Google Patents
Combined electrical apparatus with port connector Download PDFInfo
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- CN111146695B CN111146695B CN201911206357.4A CN201911206357A CN111146695B CN 111146695 B CN111146695 B CN 111146695B CN 201911206357 A CN201911206357 A CN 201911206357A CN 111146695 B CN111146695 B CN 111146695B
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- port connector
- switch
- incoming line
- position switch
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000012212 insulator Substances 0.000 claims description 32
- 230000007704 transition Effects 0.000 claims description 24
- 230000003068 static effect Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
The invention relates to a combined electrical appliance with a port connector, which comprises a circuit breaker and a three-position switch at the incoming line side, wherein the three-position switch at the incoming line side is arranged at the incoming line side of the circuit breaker; the cabinet body and the port connector are also included; the breaker and the three-station switch at the wire inlet side are both arranged in the cabinet body; the port connector is arranged on one side, away from the circuit breaker, of the incoming line side three-position switch; a connecting cylinder is arranged between the inlet side three-position switch and the port connector, and the connecting cylinder is connected with the inlet side three-position switch and the port connector; a switch operating mechanism is arranged on one side of the three-station switch on the incoming line side in the horizontal direction and is used for driving the three-station switch on the incoming line side to be switched off, switched on and grounded; at least one part of the switch operating mechanism in the vertical direction is positioned at the radial outer side of the connecting cylinder body; the diameter of the connecting cylinder body is smaller than that of the cylinder body of the port connector so as to avoid the part of the switch operating mechanism, which is positioned on the radial outer side of the connecting cylinder body.
Description
Technical Field
The invention relates to a combined electrical appliance with a port connector.
Background
A three-position switch is generally arranged between a circuit breaker and a bus of a combined electrical apparatus in the prior art, and when the combined electrical apparatus is operated to be grounded, the three steps of circuit breaker opening, three-position switch grounding at a wire outlet side and circuit breaker closing are needed to realize.
In order to meet the requirements of user programs, a three-position switch on a wire inlet side is generally added between a circuit breaker and a port connector in the prior art. Chinese utility model patent as grant publication number CN203071413U discloses a novel two side isolation ground connection combined electrical apparatus, including the chassis, be fixed with the circuit breaker on the chassis, the last horizontal output end of circuit breaker is equipped with three station switches of side of being qualified for the next round of competitions (be the last three station switches in the above-mentioned patent promptly), the top surface of three station switches of side of being qualified for the next round of competitions is fixed with the generating line, the lower horizontal output end of circuit breaker is equipped with three station switches of side of being qualified for the next round of competitions (be the lower three station switches in the above-mentioned patent promptly), the bottom surface of three station switches of side of being qualified for the next round. When the combined electrical apparatus needs to be grounded, the breaker is firstly switched off, then the three-station switch at the wire inlet side is grounded, and the grounding of the combined electrical apparatus can be realized without switching on the breaker.
In the prior art, a port connector is arranged below a circuit breaker of some combined electrical appliances, as shown in fig. 1, the combined electrical appliances comprise a cabinet body 1, an outgoing line side three-position switch 2, a circuit breaker 3, a current transformer 4 and a port connector 5 are sequentially arranged in the cabinet body 1 along the vertical direction, wherein an outgoing line bus 6 is led out through the outgoing line side three-position switch 2, and the outgoing line side three-position switch can realize three functions of closing, opening and grounding.
Because the port connector is internally provided with devices such as a cable interface, a lightning rod and the like, the diameter of a cylinder body of the port connector is larger, and the inlet side three-position switch is arranged on the inlet side of the circuit breaker, so that an operating mechanism of the inlet side three-position switch interferes with the cylinder body of the port connector, and the normal installation of the inlet side three-position switch is influenced.
Disclosure of Invention
The invention aims to provide a combined electrical appliance with a port connector, and the combined electrical appliance is used for solving the technical problem that when a three-position switch at the inlet side is additionally arranged at the inlet side of a breaker of the combined electrical appliance with the port connector in the prior art, an operating mechanism of the three-position switch at the inlet side interferes with a cylinder body of the port connector.
In order to achieve the purpose, the technical scheme of the combined electrical appliance with the port connector is as follows:
the combined electrical apparatus with the port connector comprises a circuit breaker and a three-position switch at the incoming line side, wherein the three-position switch at the incoming line side is arranged at the incoming line side of the circuit breaker; the combined electrical appliance with the port connector also comprises a cabinet body and the port connector; the breaker and the three-station switch on the wire inlet side are arranged in the cabinet body, and are arranged in the vertical direction; the port connector is arranged on one side, away from the circuit breaker, of the incoming line side three-position switch; a connecting cylinder is arranged between the inlet side three-position switch and the port connector, and the connecting cylinder is connected with the inlet side three-position switch and the port connector; a switch operating mechanism is arranged on one side of the incoming line side three-station switch in the horizontal direction and is used for driving the incoming line side three-station switch to be switched off, switched on and grounded; at least one part of the switch operating mechanism in the vertical direction is positioned at the radial outer side of the connecting cylinder body; the diameter of the connecting cylinder body is smaller than that of the cylinder body of the port connector so as to avoid the part of the switch operating mechanism, which is positioned on the radial outer side of the connecting cylinder body.
The beneficial effects are that: the connecting cylinder body is arranged between the port connector and the incoming line side three-station switch, and the diameter of the connecting cylinder body is smaller than that of the port connector, so that the connecting cylinder body can avoid the part of the switch operating mechanism, which is positioned at the radial outer side of the connecting cylinder body, and the switch operating mechanism cannot interfere with the cylinder body of the connecting cylinder body and the port connector when being installed, and the normal installation of the switch operating mechanism is ensured. In addition, the added connecting cylinder only can increase the height of the combined electrical apparatus, but can not increase the width of the combined electrical apparatus, so that the combined cabinet of the combined electrical apparatus can not be influenced, and the combined electrical apparatus can meet the requirements and simultaneously reduce the modification of the structure of the combined electrical apparatus as much as possible.
Furthermore, one of the inlet side insulator of the inlet side three-position switch and the inner cone insulator of the port connector is provided with a connecting static contact, the other one is provided with a connecting conductive rod, and the connecting static contact and the connecting conductive rod are in conductive insertion connection in the connecting cylinder body, so that the conductive connection between the inlet side three-position switch and the port connector is realized.
The beneficial effects are that: the three-station switch on the incoming line side is convenient to be electrically connected with the port connector by connecting the static contact and connecting the conductive rod to be electrically connected in the connecting cylinder body in an inserting mode.
Furthermore, a transition cylinder is arranged between the circuit breaker and the three-station switch at the incoming line side, one of the insulator at the outgoing line side of the three-station switch at the incoming line side and the insulator at the incoming line side of the circuit breaker is provided with a transition conductive rod, the other one of the insulator at the incoming line side and the insulator at the incoming line side of the circuit breaker is provided with a transition static contact, and the transition conductive rod and the transition static contact are in conductive insertion connection in the transition cylinder so as to realize conductive connection of the circuit breaker and the.
The beneficial effects are that: the transition conducting rod and the transition static contact are in conducting insertion in the transition cylinder, so that the breaker is in conducting connection with the incoming line side three-station switch conveniently.
Furthermore, the connection cylinder body is connected with the port connector and the incoming line side three-position switch through flanges.
The beneficial effects are that: the connection of the connection cylinder body, the port connector and the incoming line side three-position switch is convenient.
Furthermore, the outlet end of the circuit breaker is also connected with an outlet side three-position switch, and the outlet side three-position switch is used for leading out an outlet bus.
The beneficial effects are that: the three-station switch on the outgoing line side and the three-station switch on the incoming line side enable the circuit breaker to realize double isolation, and the safety of maintenance of the circuit breaker by operating personnel is guaranteed.
Further, a current transformer is arranged in the cabinet body, and the current transformer is sleeved on the circuit breaker.
The beneficial effects are that: because the three-station switch at the incoming line side occupies the position of the current transformer, the current transformer is sleeved on the circuit breaker, and the miniaturization of the combined electrical appliance is facilitated.
Furthermore, an inner cone insulator is arranged in the port connector and used for leading in a wire inlet cable, and the inner cone insulator is connected with a live display.
The beneficial effects are that: after the three-station switch on the incoming line side is additionally arranged between the circuit breaker and the port connector, the electricity taking position of the electrified display is required to be arranged below the three-station switch on the incoming line side, the electrified display is connected with the inner cone insulator, and the structure of the inner cone insulator is utilized, so that the structure is simplified.
Drawings
FIG. 1 is a schematic diagram of a prior art combined electrical apparatus having a port connector;
fig. 2 is a schematic structural diagram of an embodiment 1 of the combined electrical appliance with a port connector of the present invention;
FIG. 3 is a right side view of the lower half of the combination of FIG. 2 (incoming cables not shown);
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
in fig. 1: 1-a cabinet body; 2-three-position switch at the wire outlet side; 3-a circuit breaker; 4-a current transformer; 5-a port connector; 6-outlet bus;
in fig. 2 to 4: 21-a cabinet body; 22-three-position switch at the outgoing line side; 23-a circuit breaker; 24-a current transformer; 25-a port connector; 26-outlet bus; 27-connecting the cylinder; 28-transition cylinder; 29-inner cone insulator; 30-a wire-in cable; 31-three-position switch at the wire inlet side; 32-a drive motor; 33-a transmission mechanism; 34-connecting the conductive rod; 35-connecting a static contact; 36-an electronic display pin; 37-transition stationary contact; 38-a transition conductive rod; 39-reinforcing ribs.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the combined electrical apparatus with port connector of the present invention:
as shown in fig. 2, the intelligent cabinet comprises a cabinet body 21, wherein an outgoing line side three-position switch 22, a circuit breaker 23, an incoming line side three-position switch 31, a connecting cylinder 27 and a port connector 25 are sequentially arranged in the cabinet body 21 along the vertical direction. The three-station switch on the outgoing side is conductively connected with an outgoing bus 26, the bottom of the port connector 25 is fixedly provided with an inner cone insulator 29, and a conductive insert inside the inner cone insulator 29 is conductively connected with an incoming cable 30.
In this embodiment, an upper switch operating mechanism, a circuit breaker operating mechanism, and a lower switch operating mechanism are respectively disposed at one side of the cabinet body 21 corresponding to the outlet side three-position switch 22, the circuit breaker 23, and the inlet side three-position switch 31 in the horizontal direction. Under the drive of each operating mechanism, when the outgoing line side three-position switch 22, the circuit breaker 23 and the incoming line side three-position switch 31 are all in the closing position, the incoming line cable 30 is conducted with the outgoing line bus 26.
In this embodiment, the upper switch operating mechanism and the lower switch operating mechanism are the same. As shown in fig. 3, the lower switch operating mechanism includes a driving motor 32 and a transmission mechanism 33, the transmission mechanism has a portion located at the radial outer side of the connecting cylinder 27, and the driving motor 32 drives the three-position switch 31 at the wire inlet side to open, close and ground through the transmission mechanism 33. The connecting cylinder 27 is arranged between the inlet side three-position switch 31 and the port connector 25 and is connected with the inlet side three-position switch 31 and the port connector 25 through flanges, although the diameter of the port connector 25 is larger, the diameter of the connecting cylinder 27 is relatively smaller, the connecting cylinder 27 can avoid the part, located on the radial outer side of the connecting cylinder 27, of the transmission mechanism 33, and normal installation of the inlet side three-position switch 31 is guaranteed. The connecting cylinder 27 only increases the height of the combined electrical apparatus, but does not increase the width of the combined electrical apparatus, so that the combined cabinet of the combined electrical apparatus is not affected, and the combined electrical apparatus meets the requirements and simultaneously reduces the modification of the structure of the combined electrical apparatus as much as possible.
It should be noted that the outlet side three-position switch 22 is located above the circuit breaker 23, and the diameter of the barrel of the circuit breaker 23 is relatively small, so that the operation of the upper switch operating mechanism is not affected.
In this embodiment, the length of the connection cylinder 27 in the up-down direction is 178mm, so as to adapt to a specific type of combined electrical apparatus, such as ZFN13-40.5(Z) products. In other embodiments, the length of the connecting cylinder body can be set as required, and on the basis of shortening the length of the connecting cylinder body as far as possible, the transmission mechanism is not interfered.
As shown in fig. 3 and 4, the cylindrical connection body 27 is provided with a plurality of reinforcing ribs 39, the plurality of reinforcing ribs 39 are provided along the circumferential direction of the cylindrical connection body 27, each reinforcing rib 39 extends in the axial direction of the cylindrical connection body 27, the cylindrical connection body 27 is provided at the lower portion thereof and is subjected to a certain weight, and the reinforcing ribs 39 provided on the cylindrical connection body 27 can ensure the strength of the cylindrical connection body 27.
As shown in fig. 4, a connection stationary contact 35 is disposed on an inlet-side insulator of the inlet-side three-position switch 31, a connection conductive rod 34 is disposed on an inner cone insulator 29 in the port connector 25, the connection stationary contact 35 and the connection conductive rod 34 are electrically connected in the connection cylinder 27, so as to realize the electrically conductive connection between the inlet-side three-position switch 31 and the port connector 25, and the connection stationary contact 35 and the connection conductive rod 34 are electrically connected in the connection cylinder 27, so as to facilitate the electrically conductive connection between the inlet-side three-position switch 31 and the port connector 25. In other embodiments, a connection conductive rod may be disposed on the incoming line side insulator of the incoming line side three-position switch, and a connection stationary contact may be disposed on the inner cone insulator in the port connector.
In this embodiment, a transition cylinder 28 is disposed between the circuit breaker 23 and the incoming line side three-position switch 31, a transition conducting rod 38 is disposed on an outgoing line side insulator of the incoming line side three-position switch 31, a transition static contact 37 is disposed on an incoming line side insulator of the circuit breaker 23, and the transition conducting rod 38 and the transition static contact 37 are conductively inserted into the transition cylinder 28, so as to achieve conductive connection between the circuit breaker 23 and the incoming line side three-position switch 31. In other embodiments, a transition stationary contact may be disposed on an outlet side insulator of the three-position switch on the inlet side, and a transition conductive rod may be disposed on the inlet side insulator of the circuit breaker.
As shown in fig. 2, the lower part of the circuit breaker 23 is sleeved with the current transformer 24, and the incoming line side three-position switch 31 arranged between the circuit breaker 23 and the port connector 25 occupies the position of the current transformer 24, so that the current transformer 24 is sleeved on the circuit breaker 23, and the height is favorably reduced.
As shown in FIG. 4, the inner cone insulator 29 is provided with an electrical display pin 36, the electrical display pin 36 is used for plugging a plug of a live display to detect whether the cable is live or not, so as to ensure the safety of overhaul when an overhaul personnel enters a cable chamber, and the electrical display pin 36 is arranged on the inner cone insulator 29, so that the arrangement of the electrical display pin 36 is convenient.
The combined electrical apparatus in this embodiment is a three-phase split combined electrical apparatus, that is, three phases are provided in a cabinet body of the combined electrical apparatus, and each phase includes an outgoing line side three-position switch 22, a circuit breaker 23, an incoming line side three-position switch 31, a connection cylinder 27, and a port connector 25 which are sequentially arranged in an up-down direction. In other embodiments, the combined electrical appliance may be a two-phase split combined electrical appliance; or the combined electric appliance is a single-phase combined electric appliance.
When the combined electrical apparatus needs to be grounded, the circuit breaker operating mechanism is operated to open the circuit breaker 23, then the switch operating mechanism is operated to be grounded, the circuit breaker 23 does not need to be closed, the grounding of the combined electrical apparatus can be realized, the operation program of a user and the requirement on the direct grounding of the product cable side are met, and the user can conveniently overhaul and maintain the combined electrical apparatus. Simultaneously three station switch 22 of outgoing line side and three station switch 31 of incoming line side form two isolation structure, guarantee the reliable ground connection of circuit, improve the security that circuit breaker 23 overhauld, two isolation structure radiation form one set of complete two isolation schemes in adjacent regulator cubicle, meet similar project and can provide reliable technical support to the later stage.
the difference from embodiment 1 is that the three-position switch on the outgoing line side is not arranged on the upper part of the circuit breaker, and the outgoing bus is directly led out from the insulator on the outgoing line side of the circuit breaker.
the difference from embodiment 1 is that the current transformer may be disposed on the incoming cable, and the specific arrangement form may be the arrangement form of the current transformer and the cable disclosed in the publication No. CN 202633809U.
Embodiment 4 of the combined electrical apparatus with port connector of the present invention:
the difference from embodiment 1 is that the electric display pin is not arranged on the inner cone insulator, and an electrified display can be arranged on the cylinder wall of the connecting cylinder, and the electrified display is an induction type electrified display in the prior art.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (7)
1. The combined electrical apparatus with the port connector comprises a circuit breaker and a three-position switch at the incoming line side, wherein the three-position switch at the incoming line side is arranged at the incoming line side of the circuit breaker;
the combined electrical appliance with the port connector is characterized by further comprising a cabinet body and the port connector;
the breaker and the three-station switch on the wire inlet side are arranged in the cabinet body, and are arranged in the vertical direction;
the port connector is arranged on one side, away from the circuit breaker, of the incoming line side three-position switch;
a connecting cylinder is arranged between the inlet side three-position switch and the port connector, and the connecting cylinder is connected with the inlet side three-position switch and the port connector;
a switch operating mechanism is arranged on one side of the incoming line side three-station switch in the horizontal direction and is used for driving the incoming line side three-station switch to be switched off, switched on and grounded;
at least one part of the switch operating mechanism in the vertical direction is positioned at the radial outer side of the connecting cylinder body;
the diameter of the connecting cylinder body is smaller than that of the cylinder body of the port connector so as to avoid the part of the switch operating mechanism, which is positioned on the radial outer side of the connecting cylinder body.
2. The combined electrical apparatus with a port connector of claim 1, wherein one of the incoming line side insulator of the incoming line side three-position switch and the inner cone insulator of the port connector is provided with a connecting static contact, and the other is provided with a connecting conductive rod;
the connecting static contact and the connecting conducting rod are in conductive insertion in the connecting cylinder body so as to realize conductive connection of the three-station switch at the wire inlet side and the port connector.
3. The combined electrical appliance with the port connector as recited in claim 1 or 2, wherein a transition cylinder is arranged between the circuit breaker and the incoming line side three-position switch;
one of an outlet side insulator of the inlet side three-station switch and an inlet side insulator of the circuit breaker is provided with a transition conducting rod, and the other one is provided with a transition static contact;
the transition conducting rod and the transition static contact are in conductive insertion in the transition cylinder body so as to realize conductive connection of the breaker and the incoming line side three-station switch.
4. The combined electrical apparatus with a port connector according to claim 1 or 2, wherein the connection cylinder is connected with the port connector and the incoming line side three-position switch through flanges.
5. The combined electrical appliance with the port connector as recited in claim 1 or 2, wherein the outlet end of the circuit breaker is further connected with an outlet side three-position switch, and the outlet side three-position switch is used for leading out an outlet bus.
6. The combined electrical apparatus with a port connector of claim 1 or 2, wherein a current transformer is arranged in the cabinet body, and the current transformer is sleeved on the circuit breaker.
7. The combined electrical apparatus with port connector of claim 1 or 2, wherein the port connector is provided with an inner cone insulator therein, the inner cone insulator is used for leading in a cable, and the inner cone insulator is connected with a live display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206357.4A CN111146695B (en) | 2019-11-29 | 2019-11-29 | Combined electrical apparatus with port connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206357.4A CN111146695B (en) | 2019-11-29 | 2019-11-29 | Combined electrical apparatus with port connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111146695A CN111146695A (en) | 2020-05-12 |
| CN111146695B true CN111146695B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911206357.4A Active CN111146695B (en) | 2019-11-29 | 2019-11-29 | Combined electrical apparatus with port connector |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19502061A1 (en) * | 1995-01-13 | 1996-07-18 | Siemens Ag | Transducer arrangement at the field connection of encapsulated medium-voltage switchgear |
| CN102208760A (en) * | 2011-02-28 | 2011-10-05 | 辽宁省电力有限公司 | Transformer bank compound combined electrical equipment |
| CN103683016B (en) * | 2013-11-30 | 2017-01-18 | 国家电网公司 | Modular stacked switch cabinet |
| CN204333745U (en) * | 2014-12-17 | 2015-05-13 | 江苏精科智能电气股份有限公司 | A kind of novel compound combined electrical equipment |
| CN105119179B (en) * | 2015-07-23 | 2017-11-03 | 平高集团有限公司 | A kind of switch cubicle and breaker |
| CN105761964B (en) * | 2016-04-01 | 2019-01-22 | 平高集团有限公司 | A kind of GIS device and its tri-station isolating switch and moving contact |
| CN205452151U (en) * | 2016-04-07 | 2016-08-10 | 山东泰开高压开关有限公司 | Be total to novel integrated form circuit breaker of case combined electrical apparatus |
| CN205753147U (en) * | 2016-05-10 | 2016-11-30 | 广东紫光电气有限公司 | A kind of 12kV current-carrying 1250A solid insulation switch cabinet |
| CN106486317B (en) * | 2016-11-11 | 2020-09-11 | 北京双杰电气股份有限公司 | Three-station isolating switch |
| CN208707186U (en) * | 2018-08-21 | 2019-04-05 | 南通东源电力智能设备有限公司 | A kind of intelligent environmental protection type Inflatable ring main unit |
| CN109449816A (en) * | 2018-10-30 | 2019-03-08 | 深圳供电局有限公司 | Compact air insulation switch cabinet |
| CN209472286U (en) * | 2018-12-21 | 2019-10-08 | 青岛特锐德电气股份有限公司 | A kind of HGIS combined electrical apparatus |
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2019
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