CN209448323U - A kind of 10kV shield type solid insulation cylinder - Google Patents

Abstract

The utility model discloses a kind of 10kV shield type solid insulation cylinders, mainly include shell, bus-bars conductor, vacuum interrupter, grounding contact, epoxy resin mixing material is by casting by bus-bars conductor, vacuum interrupter and grounding contact sealing in shell.The utility model has the advantage that partial discharge is small, the service life is long, and pole head partial discharge value at 13.2kV is less than 5pC, and partial discharge is to influence the key factor in pole head service life, the longer service life that smaller partial discharge value means；Pole head uses environment-friendlyinsulation insulation material epoxy material, instead of the use of greenhouse gases SF6；Make uniformly spray zinc grounding in insulating cylinder outer surface, since the charge inducing of high-voltage live parts in insulating cylinder is grounded exclusion, phenomenon of getting an electric shock will not occur people touches epoxy-surface even if under the case where insulating cylinder is in charging operation, electric shock accidents effectively is avoided, product is made to have both the feature of environmental protection and safety.

Description

A kind of 10kV shield type solid insulation cylinder

Technical field

The utility model relates to the fields of electric power electric, and in particular to a kind of 10kV shield type solid insulation cylinder.

Background technique

As the market demand of solid insulation ring main unit is increasing, State Grid Corporation of China also proposes solid insulation switch The requirement of higher requirement, especially epoxy-surface spray zinc ground connection and the requirement of complete machine partial discharge (13.2kV < 5pC) are also got over Come higher.To meet the market demand, also for the new demand for meeting Guo Wang company, research and develop a kind of shield type solid insulation cylinder at The task of top priority now.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, and it is exhausted to provide a kind of 10kV shield type solid Edge cylinder.

The purpose of this utility model is completed by following technical solution: this kV shield type solid insulation cylinder, main It to include shell, bus-bars conductor, vacuum interrupter, grounding contact, epoxy resin mixing material is by being poured by bus-bars conductor, very Empty arc-chutes and grounding contact sealing are in shell, and vacuum interrupter is in vertical setting, and bus-bars conductor is arranged in zigzag, and on It holds and is fastenedly connected with the lower end of vacuum interrupter by bolt, plain cushion and spring washer, the upper end of vacuum interrupter and outer casing screw connect It connects；The upper end of vacuum interrupter, which surrounds, is provided with middle-end gauze screen, and middle-end gauze screen is embedded in inside the shell, the insertion of lower end gauze screen In the right side middle position of shell, and bend downward arrangement；Several M6 copper inserts are arranged in cover top portion, and setting is several on the right side of shell M8 copper insert, is both used for the fixed installation of insulating cylinder, and grounding contact is arranged below the gauze screen of lower end and in insertion shell.

The case surface sprays zinc grounding.

The utility model has the following beneficial effects:

1, the special structure of gauze screen and setting position, so that this patent has partial discharge small, the advantage of service life length；Insulating cylinder Partial discharge value is less than 5pC at 13.2kV, and partial discharge is to influence the key factor in insulating cylinder service life, and smaller partial discharge value means more The long service life；

2, uniformly spray zinc grounding is made in insulating cylinder outer surface, since the charge inducing of high-voltage live parts in insulating cylinder is equal It is grounded exclusion, phenomenon of getting an electric shock will not occur people touches epoxy-surface even if under the case where insulating cylinder is in charging operation, effectively Electric shock accidents is avoided, the safety of product is stronger；

3, shell keeps product more environmentally friendly using environment-friendlyinsulation insulation material epoxy material instead of the use of greenhouse gases SF6.

Detailed description of the invention

Fig. 1 is the sectional structure chart of the utility model.

Fig. 2 is the three-dimensional structure diagram of the utility model.

Fig. 3 is the internal detachment schematic diagram of the utility model.

Description of symbols: shell 1, bus-bars conductor 2, upper end gauze screen 3, plain cushion 4, spring washer 5, bolt 6, vacuum interrupter 7, middle-end gauze screen 8, M6 copper insert 9, M8 copper insert 10, lower end gauze screen 11, grounding contact 12.

Specific embodiment

Detailed introduction is done to the utility model below in conjunction with attached drawing:

Embodiment: as shown in the picture, this 10kV shield type solid insulation cylinder mainly includes shell 1, bus-bars conductor 2, true Empty arc-chutes 7, grounding contact 12, epoxy resin mixing material are touched bus-bars conductor 2, vacuum interrupter 7 and ground connection by casting First 12 sealing is in shell 1, and vacuum interrupter 7 is in vertical setting, and bus-bars conductor 2 is arranged in zigzag, and upper end and vacuum extinction The lower end of room 7 is fastenedly connected by bolt 6, plain cushion 4 and spring washer 5, and the upper end of vacuum interrupter 7 is threadedly coupled with shell 1；Vacuum The upper end of arc-chutes 7 surrounds and is provided with middle-end gauze screen 8, and middle-end gauze screen 8 is embedded in shell 1, and lower end gauze screen 11 is embedded in In the right side middle position of shell 1, and arrangement is bent downward, due to electrostatic screen principle, conductive gauze screen is by insulating cylinder The interior non-uniform part of high voltage electric field is shielded, to reach equalizing effect, entire insulating cylinder is easy to reach after electric fields uniform Lesser partial discharge value；Several M6 copper inserts 9 are set at the top of shell 1, several M8 copper inserts 10 are set on the right side of shell 1, are both used In the fixed installation of insulating cylinder, grounding contact 12 is arranged below lower end gauze screen 11 and in insertion shell 1.

Zinc grounding is sprayed on 1 surface of shell, to guarantee that phenomenon of getting an electric shock will not occur when touching charged insulating cylinder.

The utility model has the advantage that partial discharge is small, the service life is long, and pole head partial discharge value at 13.2kV is less than 5pC, Partial discharge is to influence the key factor in pole head service life, the longer service life that smaller partial discharge value means；Pole head Using environment-friendlyinsulation insulation material epoxy material, instead of the use of greenhouse gases SF6；Make at uniformly spray zinc ground connection insulating cylinder outer surface Reason, since the charge inducing of high-voltage live parts in insulating cylinder is grounded exclusion, even if insulating cylinder is the charging operation the case where Servant, which touches epoxy-surface, will not occur phenomenon of getting an electric shock, and effectively avoid electric shock accidents, product is made to have both the feature of environmental protection and peace Quan Xing.

It is understood that it will be understood by those skilled in the art that the technical solution of the utility model and utility model structure Think of is subject to equivalent substitution or change all and should belong to the protection scope of the utility model the attached claims.

Claims (2)

1. a kind of 10kV shield type solid insulation cylinder, it is characterised in that: mainly go out including shell (1), bus-bars conductor (2), vacuum Arc chamber (7), grounding contact (12), epoxy resin mixing material by bus-bars conductor (2), vacuum interrupter (7) and are connect by casting For ground contact (12) sealing in shell (1), vacuum interrupter (7) is in vertical setting, and bus-bars conductor (2) is arranged in zigzag, and on End passes through bolt (6), plain cushion (4) and spring washer (5) with the lower end of vacuum interrupter (7) and is fastenedly connected, vacuum interrupter (7) it is upper End is threadedly coupled with shell (1)；The upper end of vacuum interrupter (7) surrounds and is provided with middle-end gauze screen (8), middle-end gauze screen (8) It is embedded in shell (1), lower end gauze screen (11) is embedded in the right side middle position of shell (1), and bends downward arrangement；Shell (1) several M6 copper inserts (9) are arranged in top, several M8 copper inserts (10) are arranged on the right side of shell (1), both for insulating cylinder It is fixedly mounted, grounding contact (12) setting is below lower end gauze screen (11) and in insertion shell (1).

2. 10kV shield type solid insulation cylinder according to claim 1, it is characterised in that: spray zinc in shell (1) surface Grounding.