CN202977999U - Insulated connecting device for pole-mounted breakers - Google Patents
Insulated connecting device for pole-mounted breakers Download PDFInfo
- Publication number
- CN202977999U CN202977999U CN 201220691368 CN201220691368U CN202977999U CN 202977999 U CN202977999 U CN 202977999U CN 201220691368 CN201220691368 CN 201220691368 CN 201220691368 U CN201220691368 U CN 201220691368U CN 202977999 U CN202977999 U CN 202977999U
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- Prior art keywords
- breakers
- cable
- circuit breaker
- connecting device
- pole
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- 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 - Lifetime
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Abstract
The utility model relates to medium-voltage switch equipment, in particular to an outdoor-mounted insulated connecting device for breakers on solid insulation poles. The insulated connecting device for the breakers comprises wire inlet ends and wire outlet ends of the breakers, surfaces of sleeves of the wire inlet ends and the wire outlet ends of the breakers are subjected to shielding and grounding and provided with cable joints, and adapters are arranged on the cable joints. The insulated connecting device had the advantages that the pole-mounted breakers have two direct connection modes of air casings and cables and are flexible in connection modes. When in cable connection, cable terminal accessories and the breakers are tightly combined into a whole, T-shaped cable joints and cables are connected without exposed points, equipment is quite compact, and the outer surfaces of the pole-mounted breakers are shielded and grounded. If horizontal overhead lines are insulated leads, two ends of the breakers can be provided with the cable accessories, complete insulation and shielding at connected ends of the cables and the breakers are thoroughly realized, and reliability is greatly improved.
Description
Technical field
The utility model relates to a kind of medium voltage switchgear equipment, especially relate to a kind of for outdoor installation, the insulated connecting device of solid-state insulation pole-mounted circuit breaker.
Background technology
Circuit breaker refers to close and closes, carries and cut-off electric current under normal loop condition, and can close close, in the in setting time carrying with cut-off the switching device of the electric current under abnormal loop condition (comprising short circuit condition).Circuit breaker on solid-state insulated column refers to drive by operating mechanism, and cut-offfing in the time of will admittedly be enclosed in vacuum interrupter in solid insulating material and realize fault protected circuit or distribution transformer.Usually, circuit breaker adopts terminals and overhead wire, and these terminals can not directly be connected with cable.The switchgear that belongs to outdoor installation due to described circuit breaker when needs are connected with overhead wire or cable, must be peelled off the insulator of overhead wire or cable, therefore can destroy insulation property, can not guarantee safety.
The utility model content
The purpose that the utility model relates to will solve outdoor installation, the Insulation Problems of the circuit breaker on solid-state insulated column and cable junction.
The utility model is achieved in that a kind of insulated connecting device of circuit breaker, comprises end of incoming cables and the leading-out terminal of circuit breaker, it is characterized in that: the bonding processing is carried out in the end of incoming cables of circuit breaker and the sleeve pipe appearance of leading-out terminal, and the installing cables connector lug; Adapter also is set on the cable link head.
Described adapter adopts the silicon rubber insulation minor structure, and it is connected with overhead wire.
Described adapter adopts T shape cable end structure, and it is connected with cable.
Advantage of the present utility model: pole-mounted circuit breaker has casing air is connected with cable and connects two kinds of options, and connected mode is flexible.The initial stage that is applicable to is used overhead wire, and it is the engineering of cable that the later stage needs upgrading, because it need not to change pole-mounted circuit breaker.
When adopting cable to connect, cable termination annex and the circuit breaker formation one of combining closely, T shape cable end does not have exposed point with being connected of cable, and equipment is very compact, and because of the outer surface shield ground connection of pole-mounted circuit breaker, therefore whole switch and cable are without charged position.
For the connection of circuit breaker to transformer, adopt aerial insulated wire of the present utility model, eliminated bare wire, increase the reliability that vertical downlead highway section switch becomes to bar.
If horizontal overhead transmission line is insulated conductor, electric cable accessories all can be adopted in circuit breaker two ends, at the link of cable and circuit breaker, thoroughly realizes all insulation, full-shield, greatly increases reliability.
Advantage to sum up, after having adopted structure of the present utility model, gardens department need not to worry that when pollard, the danger that whether has electric shock occurs; Power department need not to worry branch growth obstruction equipment.Simultaneously, can not get an electric shock because toy is strayed into pole-mounted circuit breaker dead, anti-external factor is disturbed effectively, has improved the reliability of equipment.
Description of drawings
Fig. 1: the structural representation of one of the utility model embodiment.
Fig. 2: two the structural representation of the utility model embodiment.
Embodiment
The insulated connecting device of a kind of pole-mounted circuit breaker of the present utility model comprises end of incoming cables 1, the leading-out terminal 2 of circuit breaker; This device is on the basis of original circuit breaker, the sleeve pipe appearance of circuit breaker end of incoming cables, leading-out terminal carried out bonding processes, and to installing cables connector lug on circuit breaker end of incoming cables and leading-out terminal, and on the cable link head, adapter is set.Described adapter can have two kinds: a kind of is to adopt silicon rubber insulator 3, and this silicon rubber insulator is connected with overhead wire.Another kind of employing T shape cable end 4, and be connected with cable through T shape cable end.
Pole-mounted circuit breaker of the present utility model, its vacuum interrupter are to adopt the mode of Epoxy Resin envelope to be cast in the epoxy resin pole.Be cast for simultaneously the conductor etc. at pre-buried lead member, the vacuum interrupter two ends of the insulated tension pole that also has the bottom, current transformer, the Current Transformer Secondary line of one.
The three-phase pole is fixed on the operating mechanism case, and the operating mechanism that drives vacuum interrupter is installed in chest.Two leading-out terminals of solid-state pole all adopt taper interface design, guarantee outlet can and electric cable accessories, i.e. the direct connection of elbow type plug terminal.
Because elbow type plug electric cable accessories is outer surface shield ground connection, for forming whole bonding outer surface, pole need to not carried out shielding processing by elbow type electric cable accessories covered section.The utility model adopts a kind of semiconductive varnish spraying pole outer surface, and provides grounding electrode bottom pole, makes it bonding.
If the end of incoming cables of the utility model pole-mounted circuit breaker and leading-out terminal adopt traditional plain conductor form, external insulation casing pipe is designed to an inner chamber and meets normal cone, and the outside is the structure of silicon rubber cluster parachute.Be that its inner chamber interface shape is identical with elbow type cable termination annex, outer surface is with the insulating part of traditional cluster parachute.The leading-out terminal of circuit breaker is connected to overhead bare conductor, to realize that the utility model has cable concurrently and connects the function that is connected with plain conductor.
Claims (3)
1. the insulated connecting device of a circuit breaker comprises it is characterized in that end of incoming cables (1) and the leading-out terminal (2) of circuit breaker: the sleeve pipe appearance of the end of incoming cables (1) of circuit breaker and leading-out terminal (2) carried out bonding processes, and the installing cables connector lug; Adapter also is set on the cable link head.
2. the insulated connecting device of a kind of circuit breaker according to claim 1 is characterized in that: described adapter adopts silicon rubber insulator (3) structure, and it is connected with overhead wire.
3. the insulated connecting device of a kind of circuit breaker according to claim 1 is characterized in that: described adapter adopts T shape cable end (4) structure, and it is connected with cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691368 CN202977999U (en) | 2012-12-14 | 2012-12-14 | Insulated connecting device for pole-mounted breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691368 CN202977999U (en) | 2012-12-14 | 2012-12-14 | Insulated connecting device for pole-mounted breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977999U true CN202977999U (en) | 2013-06-05 |
Family
ID=48519027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220691368 Expired - Lifetime CN202977999U (en) | 2012-12-14 | 2012-12-14 | Insulated connecting device for pole-mounted breakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977999U (en) |
-
2012
- 2012-12-14 CN CN 201220691368 patent/CN202977999U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |