CN213304920U

CN213304920U - Ultrahigh-voltage double-bus shell

Info

Publication number: CN213304920U
Application number: CN202021354796.8U
Authority: CN
Inventors: 梁明月; 曾鸣; 仲崇祥
Original assignee: Jiangsu Huajiang Technology Co ltd
Current assignee: Jiangsu Huajiang Technology Co ltd
Priority date: 2020-07-11
Filing date: 2020-07-11
Publication date: 2021-05-28
Anticipated expiration: 2030-07-11

Abstract

The utility model relates to a two generating line casings of superhigh pressure. The bus shell consists of a main bus flange ZSK100, a bus flange I CSK101, a bus flange II BSK102, a bottom plate flange DSK104 and a breaker cover plate flange GSK103, wherein the bus flange I CSK101, the bus flange II BSK102, the bottom plate flange DSK104 and the breaker cover plate flange GSK103 are positioned on three sides of the bus shell; three observation windows are equidistantly distributed on the lower side of the main bus flange and comprise an observation window one GCK108, an observation window two GCK109 and an observation window three GCK 110. The utility model discloses can effectively survey the inner chamber arcing situation of discharging, greatly improve switchgear's rate of utilization, reduce switchgear's loss when electrical fault. The market development direction of the technical requirements of the intelligent power grid switch equipment is met.

Description

Ultrahigh-voltage double-bus shell

Technical Field

The utility model relates to a double bus casing especially relates to a casting aluminum alloy double bus casing for superhigh pressure.

Background

The GIS is a gas insulated metal fully-enclosed combined switch electrical appliance (GIS for short), mainly comprises a circuit breaker, an isolating switch, a grounding switch, a mutual inductor, a lightning arrester, a bus, an outgoing line terminal and other components, has the advantages of compact structure, high reliability, high safety, small maintenance workload, long service life, convenience in installation and the like, and is widely applied to the fields of high voltage, ultrahigh voltage and extra-high voltage. The bus shell is an important component of GIS switchgear, is made of aluminum alloy, is filled with SF6 insulating gas with certain pressure, and improves the insulating performance inside the switchgear by utilizing the characteristics of the SF6 gas.

As shown in fig. 1, most of the existing extra-high voltage bus casings are single bus casings, and when a single bus fails or is overhauled, the loops of the bus are all powered off during the overhaul period, which may cause all the devices connected with the single bus to be powered off. The existing bus shell is only provided with one observation window (YSK 104), the field of view of the observation window cannot cover the internal space of the whole bus shell, and the operation state and the abnormal condition of the internal structure are not convenient to observe.

Accordingly, there is a need for a new bus bar housing that facilitates maintenance and repair.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applied to the double bus casing of the superhigh pressure field maintenance and maintenance of being convenient for.

Therefore, the utility model adopts the technical scheme that: an ultrahigh-pressure double-bus shell comprises a shell which is integrally cylindrical, wherein a main bus flange (ZSK 100) is arranged on the side surface of the shell, a first bus flange (CSK 101) which is symmetrical to the main bus flange (ZSK 100) about the axis of the shell is arranged on the side surface of the shell, a second bus flange (BSK 102) is arranged on the side surface of the shell, the first bus flange (CSK 101) and the second bus flange (BSK 102) are arranged on the same side, and the axes of the first bus flange and the second bus flange are arranged in parallel;

the terminal surface of casing one side is provided with circuit breaker apron flange (GSK 103), the terminal surface of casing opposite side is provided with bottom plate flange (DSK 104).

Furthermore, the side face of the shell is provided with a first observation window (GCK 108), a second observation window (GCK 109) and a third observation window (GCK 110), the axes of the first observation window (GCK 108), the second observation window (GCK 109) and the third observation window (GCK 110) are arranged on the same side of the main bus flange (ZSK 100), and the axes are arranged in parallel.

Furthermore, the inner ring of the circuit breaker cover plate flange (GSK 103) is provided with a first fixed support (GZK 111), a second fixed support (GZK 112), a third fixed support (GZK 113) and a fourth fixed support (GZK 114).

Furthermore, the first fixed support (GZK 111), the second fixed support (GZK 112), the third fixed support (GZK 113) and the fourth fixed support (GZK 114) are uniformly distributed on the inner ring of the circuit breaker cover plate flange (GSK 103).

Further, the first fixing support (GZK 111), the second fixing support (GZK 112), the third fixing support (GZK 113) and the fourth fixing support (GZK 114) are arranged at an angle of 45 degrees with respect to a central horizontal line of the bus shell.

Further, an arc observation port (DHK 105) is arranged on the side face of the shell, and the arc observation port (DHK 105) is communicated with the interior of the bus shell.

Further, a first lifting lug (DRK 106) and a second lifting lug (DRK 107) are arranged at the position, close to the breaker cover plate flange (GSK 103), of the side of the shell.

The utility model has the advantages that: 1) the shell is connected with the bus shell through the bus flanges of the two output ports, when equipment is abnormal, the bus flange of one output port is used for quick maintenance, all the equipment connected with the bus shell does not need to be powered off, and the operation and maintenance cost is reduced.

2) This casing has set up three observation window, can observe the operation of inner structure better and make things convenient for the judgement of equipment, has greatly made things convenient for equipment safety maintenance and inspection maintenance.

3) The shell is additionally provided with the arc observation port which is directly communicated with the inside, so that the partial discharge of the inner cavity is convenient to measure, and the abnormal discharge condition of the inner cavity is observed, thereby greatly improving the safety factor of equipment use.

Drawings

Fig. 1 is a perspective view of a conventional ultrahigh-voltage single bus bar housing.

Fig. 2 and 3 are perspective views of the structure of the ultrahigh voltage double bus casing of the present invention.

Detailed Description

An ultrahigh-voltage double-bus shell comprises a shell which is integrally cylindrical, wherein a main bus flange ZSK100 is arranged on the side surface of the shell, a first bus flange CSK101 which is symmetrical to the main bus flange ZSK100 about the axis of the shell is arranged on the side surface of the shell, a second bus flange BSK102 is arranged on the side surface of the shell, the first bus flange CSK101 and the second bus flange BSK102 are arranged on the same side, and the axes of the first bus flange CSK101 and the second bus flange BSK102 are arranged in parallel;

the terminal surface of casing one side is provided with circuit breaker apron flange GSK103, the terminal surface of casing opposite side is provided with bottom plate flange DSK 104.

Furthermore, an observation window I GCK108, an observation window II GCK109 and an observation window III GCK110 are arranged on the side face of the shell, the axes of the observation window I GCK108, the observation window II GCK109 and the observation window III GCK110 are arranged on the same side as the main bus flange ZSK100, and the axes are arranged in parallel.

Further, the inner ring of the circuit breaker cover plate flange GSK103 is provided with a first fixed support GZK111, a second fixed support GZK112, a third fixed support GZK113 and a fourth fixed support GZK 114.

Furthermore, the first fixed support GZK111, the second fixed support GZK112, the third fixed support GZK113 and the fourth fixed support GZK114 are uniformly distributed on the inner ring of the circuit breaker cover plate flange GSK 103.

Further, the first fixing support GZK111, the second fixing support GZK112, the third fixing support GZK113 and the fourth fixing support GZK114 are arranged at an angle of 45 degrees with respect to the central horizontal line of the bus shell.

Further, an arc observation port DHK105 is arranged on the side face of the shell, and the arc observation port DHK105 is communicated with the interior of the bus shell.

Further, a first lifting lug DRK106 and a second lifting lug DRK107 are arranged at the side of the housing close to the circuit breaker cover plate flange GSK 103.

The ultrahigh voltage double bus bar housing of the present invention will be further described in detail with reference to the accompanying drawings.

The utility model consists of a main bus flange ZSK100, a bus flange one CSK101, a bus flange two BSK102, a breaker cover plate flange GSK103 positioned at the top end of the bus shell and a bottom plate flange DSK104 positioned at the bottom end of the bus shell;

the main bus flange ZSK100 is connected with the bus shell, and two output port bus flanges I CSK101 and two bus flanges II BSK102 are arranged.

The top end of the bus shell is provided with a breaker cover plate flange GSK103, and four fixing support fixing supports, namely a first fixing support GZK111, a second fixing support GZK112, a third fixing support GZK113 and a fourth fixing support GZK114 are additionally arranged on the inner ring, and form an angle of 45 degrees with the central horizontal line of the bus shell.

And a bottom plate flange DSK104 is arranged at the bottom end of the bus shell.

Three observation windows are equidistantly distributed on the lower side of the main bus flange and comprise an observation window one GCK110, an observation window two GCK109 and an observation window three GCK108, and the observation windows are used for observing the running state and abnormal conditions of the internal structure.

The bus casing is provided with an arc observation port DHK105 communicated with the inside of the bus casing.

The utility model discloses a structure of two generating line casings of superhigh pressure includes: the bus-bar flange comprises a main bus-bar flange ZSK100, a first bus-bar flange CSK101, a second bus-bar flange BSK102, a bottom plate flange DSK104, a circuit breaker cover plate flange GSK103, a first observation window GCK108, a second observation window GCK109, a third observation window GCK110, an arc observation port DHK105, a first lifting lug DRK106 and a second lifting lug DRK 107.

1. Different with current superhigh pressure single generating line casing, the utility model discloses a double bus-bar flange, a generating line flange CSK101, two BSK102 of generating line flange are located main bus-bar flange ZSK 100's opposite, when switchgear breaks down, and all equipment of being connected with this generating line casing need not cut off the power supply, and the generating line flange quick overhaul of available one of them delivery outlet to reduce the operation maintenance cost.

2. The utility model discloses set up observation window GCK108 ~ GCK110 of three equidistance at main bus flange ZSK100 downside for observe the operation of internal mechanism and make things convenient for the inspection maintenance of equipment.

3. The utility model discloses arc viewing aperture DHK105 has been set up on the generating line casing for observe the intracavity discharge abnormal conditions, detect the partial discharge condition, through providing vision and sound feedback, solve the trouble cause in early stage, can avoid conflagration and serious loss.

4. The utility model discloses set up 4 fixed bolster GZK111 ~ GZK114 on circuit breaker apron flange GSK103 at generating line casing top, become 45 with generating line casing center water flat line and be connected for fix cable junction box on steel framework support, can effectively avoid cable junction's discharge, corona hidden danger.

5. The double-bus shell of the utility model is provided with 2 lifting lugs DRK106 and DRK107 which are positioned at two sides of the shell so as to facilitate the hoisting of the shell and avoid the damage of the outer surface paint coating;

the utility model discloses on the basis of current superhigh pressure single generating line casing, carry out the design and the improvement of configuration optimization, performance promotion to overcome a great deal of drawback of current superhigh pressure generating line casing. 2 bus flanges are arranged, so that the bus flange is convenient to quickly overhaul when a fault occurs, and the operation and maintenance cost is reduced; 3 equidistant observation windows are arranged on the lower side of the main bus flange and used for observing the running state and abnormal conditions of the internal structure; the arc viewing port is directly communicated with the bus shell so as to be convenient for measuring the partial discharge of the inner cavity and observing the abnormal discharge of the inner cavity.

Claims

1. The ultrahigh-pressure double-bus shell is characterized by comprising a shell which is integrally cylindrical, wherein a main bus flange (ZSK 100) is arranged on the side surface of the shell, a first bus flange (CSK 101) which is symmetrical to the main bus flange (ZSK 100) about the axis of the shell is arranged on the side surface of the shell, a second bus flange (BSK 102) is arranged on the side surface of the shell, the first bus flange (CSK 101) and the second bus flange (BSK 102) are arranged on the same side, and the axes of the first bus flange (CSK 101) and the second bus flange (BSK 102) are arranged in;

2. The ultrahigh-pressure double-bus shell as claimed in claim 1, wherein a first observation window (GCK 108), a second observation window (GCK 109) and a third observation window (GCK 110) are arranged on the side face of the shell, and the axes of the first observation window (GCK 108), the second observation window (GCK 109) and the third observation window (GCK 110) are arranged on the same side as the main bus flange (ZSK 100) and are arranged in parallel.

3. The ultrahigh-voltage double-bus shell as claimed in claim 1, wherein the inner ring of the breaker cover flange (GSK 103) is provided with a first fixed bracket (GZK 111), a second fixed bracket (GZK 112), a third fixed bracket (GZK 113) and a fourth fixed bracket (GZK 114).

4. The ultrahigh-voltage double-bus shell according to claim 3, wherein the first fixed bracket (GZK 111), the second fixed bracket (GZK 112), the third fixed bracket (GZK 113) and the fourth fixed bracket (GZK 114) are uniformly distributed on the inner ring of the circuit breaker cover plate flange (GSK 103).

5. The ultrahigh-voltage double bus bar housing according to claim 4, wherein the first fixing bracket (GZK 111), the second fixing bracket (GZK 112), the third fixing bracket (GZK 113) and the fourth fixing bracket (GZK 114) are arranged at an angle of 45 degrees with respect to a bus bar housing center horizontal line.

6. The ultrahigh-voltage double-bus casing as claimed in claim 1, wherein an arc viewing port (DHK 105) is arranged on the side surface of the casing, and the arc viewing port (DHK 105) is communicated with the inside of the bus casing.

7. The EHV double bus bar housing of claim 1, wherein the housing sides are provided with a first lifting lug (DRK 106) and a second lifting lug (DRK 107) at locations near the breaker cover flange (GSK 103).