CN114640052A

CN114640052A - Novel fusion type combined electrical apparatus and transformer substation

Info

Publication number: CN114640052A
Application number: CN202011473934.9A
Authority: CN
Inventors: 王学东
Original assignee: Beijing Ruiheng Xinyuan Investment Co ltd
Current assignee: Beijing Ruiheng Xinyuan Investment Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2022-06-17
Anticipated expiration: 2040-12-15
Also published as: CN114640052B; CN120405202A

Abstract

A novel fusion type combined electrical apparatus and a transformer substation are provided, wherein a first sleeve comprises a first conductor and a first insulating core body, and the inner end of the first sleeve is connected with a circuit breaker through a first connector; the second sleeve comprises a second conductor and a second insulating core body, and the inner end of the second sleeve is connected with the circuit breaker through a second connector; the circuit breaker comprises a vacuum arc extinguish chamber, a circuit breaker moving contact, a circuit breaker static contact, a circuit breaker operating mechanism, an operating mechanism pull rod and a circuit breaker insulating core body, wherein the vacuum arc extinguish chamber is positioned in the circuit breaker insulating core body, and the circuit breaker operating mechanism is connected with the circuit breaker moving contact in a driving way through the operating mechanism pull rod; the first connecting head comprises a first insulating shell matched with the first insulating core and the breaker insulating core respectively; the second connector comprises a second insulating shell which is matched with the circuit breaker insulating core body and the second insulating core body respectively; the static contact of the circuit breaker is electrically connected with one end of the first conductor through the first connector, and the moving contact of the circuit breaker is electrically connected with one end of the second conductor through the second connector.

Description

Novel fusion type combined electrical apparatus and transformer substation

Technical Field

The invention relates to the technical field of power transmission, in particular to a novel fusion type combined electrical apparatus, and further relates to a transformer substation comprising the novel fusion type combined electrical apparatus.

Background

The existing transformer substation generally has the following two structures:

firstly, high-voltage cable → GIS combined electrical apparatus → transformer → switch cabinet;

second, high voltage cable → air insulated switchgear → transformer → switch cabinet.

The air insulation combined electrical apparatus is insulated by air, and the electrical apparatuses on the high-voltage side need to be kept large, so that a large installation space is occupied; the GIS combined electrical apparatus is insulated by filling insulating gas (such as sulfur hexafluoride) in a closed shell, and although the volume of the GIS combined electrical apparatus is reduced to a certain extent compared with that of the GIS combined electrical apparatus, the GIS combined electrical apparatus still occupies a larger installation space.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a novel fusion type combined electrical apparatus which is compact in structure, good in insulating property and capable of saving installation space; still provide a portable transformer substation, its simple structure, small and be convenient for remove.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel fusion type combined electrical apparatus comprises a first sleeve 1, a first connector 1-2, a circuit breaker 2, a second connector 2-3 and a second sleeve 3; the first sleeve 1 comprises a first conductor 10 and a first insulating core 11 wrapped outside the first conductor 10, two ends of the first sleeve 1 are respectively a first sleeve inner end and a first sleeve outer end, and the first sleeve inner end is connected with the circuit breaker 2 through a first connector 1-2; the second sleeve 3 comprises a second conductor 30 and a second insulating core body 31 wrapped outside the second conductor 30, two ends of the second sleeve 3 are a second sleeve inner end and a second sleeve outer end respectively, and the second sleeve inner end is connected with the circuit breaker 2 through a second connector 2-3; the circuit breaker 2 comprises a vacuum arc-extinguishing chamber 20, a circuit breaker moving contact and a circuit breaker static contact which are arranged in the vacuum arc-extinguishing chamber 20, a circuit breaker operating mechanism 24, an operating mechanism pull rod 25 and a circuit breaker insulating core body 23, wherein the vacuum arc-extinguishing chamber 20 is positioned in the circuit breaker insulating core body 23, and the circuit breaker operating mechanism 24 is connected with the circuit breaker moving contact in a driving way through the operating mechanism pull rod 25; the first connecting head 1-2 comprises first insulating shells 1-21 which are respectively matched with the first insulating core 11 and the breaker insulating core 23; the second connector 2-3 comprises a second insulating shell 2-31 which is matched with the circuit breaker insulating core body 23 and the second insulating core body 31 respectively; the static contact of the circuit breaker is electrically connected with one end of a first conductor 10 through a first connector 1-2, and the moving contact of the circuit breaker is electrically connected with one end of a second conductor 30 through a second connector 2-3.

Preferably, the novel fusion type combined electrical apparatus further comprises a third connector 5 and a fourth connector 6, the first sleeve 1 is connected with the incoming cable through the third connector 5, and the second sleeve 2 is connected with the outgoing cable through the fourth connector 6.

Preferably, the novel fused combined electrical apparatus further comprises one or more of a plug-in type full-shielding lightning arrester 1a, a plug-in type full-shielding grounding switch 2a and a plug-in type full-shielding voltage sensor 3 a; the plug-in type full-shielding lightning arrester 1a and/or the plug-in type full-shielding grounding switch 2a and/or the plug-in type full-shielding voltage sensor 3a are/is inserted on the first connector 1-2 and/or the third connector 5 and/or the fourth connector 6.

Preferably, the first connector 1-2 further comprises a first connector conductor 1-20 disposed in the first insulating case 1-21 and electrically connected at one end to the first conductor 10; the first insulating shells 1-21 are of a three-way structure and comprise first insulating shell cross arms and first insulating shell vertical arms, one ends of the first insulating shell vertical arms are connected with the middle parts of the first insulating shell cross arms, the other ends of the first insulating shell vertical arms are connected with one ends of breaker insulating cores 23, one ends of the first insulating shell cross arms are connected with one ends of the first insulating cores 11, and first connecting head slots 1-22 are formed in the other ends of the first insulating shell cross arms.

Preferably, the second insulating shell 2-30 is of a three-way structure and comprises a second insulating shell vertical arm and a second insulating shell cross arm, and one end of the second insulating shell cross arm is connected with the middle part of the second insulating shell vertical arm; the second connector 2-3 further comprises a second connector T-shaped hole 2-31 arranged in the second connector, the second connector T-shaped hole 2-31 comprises a second connector vertical hole arranged in a second insulating shell vertical arm and a second connector transverse hole arranged in a second insulating shell transverse arm, and one end of the second connector transverse hole is communicated with the middle part of the second connector vertical hole; the moving contact conductor 21 and the operating mechanism pull rod 25 of the circuit breaker 2 penetrate through the second connector vertical hole, and one end of the second conductor 30 penetrates through the second connector transverse hole to be electrically connected with the moving contact conductor 21.

Preferably, the third connector 5 includes a third insulating casing 51 and a third connector conductor 50 disposed in the third insulating casing 51, two ends of the first conductor 10 are electrically connected to the fixed contact of the circuit breaker and the third connector conductor 50, respectively, and one end of the third insulating casing 51 is sleeved outside the outer end of the first bushing;

the fourth connector 6 includes a fourth insulating case 61 and a fourth connector conductor 60 disposed in the fourth insulating case 61, two ends of the second conductor 30 are electrically connected to the moving contact of the circuit breaker and the fourth connector conductor 60, respectively, and a sleeve of the fourth insulating case 61 is disposed outside the outer end of the second sleeve.

Preferably, the third insulating shell 51 is an L-shaped structure and includes a third insulating shell cross arm and a third insulating shell vertical arm, one end of the third insulating shell cross arm is sleeved outside the outer end of the first sleeve, the other end of the third insulating shell cross arm is provided with a third connector slot and is connected with the third insulating shell vertical arm in a bending manner, and an external power feeding cable or bus is inserted into the third insulating shell vertical arm and is electrically connected with the third connector conductor 50.

Preferably, a fourth connector slot is formed at the other end of the fourth insulating casing 61, and an external power cable or a bus is inserted into the fourth connector slot and electrically connected to the third connector conductor 60.

Preferably, the joints between the second connector insulating cases 2 to 30 and the circuit breaker insulating core 23 are filled with insulating glue, and the joints between the second connectors 2 to 30 and the second insulating core 31 are filled with insulating glue.

Preferably, the circuit breaker 2 further includes a moving contact conductor 21 and a fixed contact conductor 22, the fixed contact of the circuit breaker is electrically connected to one end of the first conductor 10 through the fixed contact conductor 22, the moving contact of the circuit breaker is electrically connected to the second conductor 30 through the moving contact conductor 21, and the moving contact of the circuit breaker is further connected to the operating mechanism pull rod 25 through the moving contact conductor 21.

Preferably, the fixed contact conductor 22, the breaker fixed contact, the breaker moving contact, the moving contact conductor 21, the operating mechanism pull rod 25 and the breaker operating mechanism 24 are sequentially arranged from top to bottom; the second conductor 30 is a flexible conductor, and one end of the flexible conductor is inserted into the second insulating housing 2-30 and electrically connected to the movable contact conductor 21.

Preferably, the circuit breaker 2 further includes a circuit breaker support sleeve 26, the circuit breaker support sleeve 26 is disposed between the second connector 2-3 and the circuit breaker operating mechanism 24, two ends of the circuit breaker support sleeve 26 are respectively connected to the second connector 2-3 and the housing of the circuit breaker operating mechanism 24, and the joint between the circuit breaker support sleeve 26 and the second connector 3 is filled with an insulating glue.

Preferably, the novel fusion combiner further comprises a current transformer CT0 sleeved outside the first bushing 1 and/or a current transformer CT1 sleeved outside the insulating core 23 of the circuit breaker.

Preferably, the first bushing 1 further includes a first bushing supporting shell 12 sleeved outside the first insulating core 11, and the third insulating shell 51 is wrapped outside the first bushing supporting shell 12; the second sleeve 3 further includes a second sleeve supporting shell 32 covering the second insulating core 31, and a fourth insulating shell 61 covering the second insulating core 31.

Preferably, the first insulating core 11 includes a group of capacitive screens embedded therein, the capacitive screens and the insulating layers are alternately arranged, the inner diameter of the capacitive screens is gradually increased, and the capacitive screens are sequentially overlapped, the group of capacitive screens includes n1 capacitive screens, and n1 is an integer greater than or equal to 2.

Preferably, the group of capacitive screens in the first insulating core 11 includes an insulating capacitor C1 formed by a plurality of capacitive screens, a voltage dividing capacitor C2 formed by a plurality of capacitive screens outside the insulating capacitor C1, and a capacitive voltage divider formed by connecting the insulating capacitor C1 and the voltage dividing capacitor C2 in series and serving as a voltage transformer PT 0.

Preferably, establish respectively along the axial in circuit breaker insulating core 23 including inlaying and be equipped with a set of or multiunit capacitive screen, every group capacitive screen all includes that polylith and insulating layer set up in turn, the internal diameter increases gradually and overlap the capacitive screen of cover in proper order.

Preferably, circuit breaker insulating core 23 is including inlaying two sets of capacitive screens of locating its both ends respectively, two sets of capacitive screens encircle the flange at vacuum interrupter 20 both ends respectively, every group capacitive screen all includes that polylith and insulating layer set up in turn, the internal diameter increases gradually and overlaps the capacitive screen of cover in proper order, every capacitive screen of two sets of capacitive screens is equallyd divide and is do not encircle the flange that corresponds.

Preferably, the plurality of capacitive screens of each group of capacitive screens form an insulating capacitor C1 and a voltage dividing capacitor C2 connected in series to form a capacitive voltage divider as a voltage transformer PT 1.

Preferably, the pluggable full-shielding arrester 1a comprises an arrester connecting assembly 10a, an arrester valve group 12a, an arrester insulating core body 13a and an arrester flange piece 15 a; arrester coupling assembling 10a includes arrester insulating housing 101a and arrester connecting conductor 100a, arrester insulating housing 101a one end is for pegging graft complex arrester plug 1011a, arrester connecting conductor 100a sets up in arrester plug 1011a, one end links with the arrester valve block group 12a electricity, arrester valve block group 12a sets up in arrester insulating housing 101a, arrester insulating core 13a cover is established outside and is located between arrester valve block group 12a and the arrester insulating housing 101a in arrester valve block group 12a, arrester flange 15a sets up at the arrester insulating housing 101a other end.

Preferably, the pluggable full-shielding arrester 1a further includes an arrester transition conductor 11a disposed in the arrester insulating housing 101a and located between the arrester connection conductor 100a and the arrester valve plate group 12a, one end of the arrester transition conductor 11a is electrically connected to the arrester connection conductor 100a, and the other end of the arrester transition conductor is electrically connected to one end of the arrester valve plate group 12 a.

Preferably, the arrester insulating core body 13a includes a group of capacitive screens which are embedded in the insulating layer and are alternately arranged, have gradually increased diameters and are sequentially overlapped, and the capacitive screens of the group of capacitive screens are sequentially arranged from inside to outside and axially offset from one end close to the arrester connecting conductor 100a to one end close to the arrester flange 15 a.

Preferably, one lightning arrester valve plate far away from the lightning arrester connecting conductor 100a in the lightning arrester valve plate group 12a is used as a valve plate voltage dividing capacitor, other lightning arrester valve plates are used as valve plate main capacitors, and the valve plate main capacitors and the valve plate voltage dividing capacitors form a capacitive voltage divider; the capacitive screen group in the arrester insulating core body 13a includes insulating capacitor C1 that a plurality of capacitive screens of inboard constitute, is located the voltage dividing capacitor C2 that a plurality of capacitive screens outside insulating capacitor C1 constitute, and insulating capacitor C1 and voltage dividing capacitor C2 establish ties and constitute another capacitive voltage divider.

Preferably, the lightning arrester insulating shell 101a is of an L-shaped structure and comprises a lightning arrester insulating shell cross arm and a lightning arrester insulating shell vertical arm, wherein a lightning arrester plug 1011a is arranged at one end of the lightning arrester insulating shell cross arm, a lightning arrester insertion slot 1010a is formed in the other end of the lightning arrester insulating shell cross arm and is connected with one end of the lightning arrester insulating shell vertical arm in a bending manner, and the other end of the lightning arrester insulating shell vertical arm is connected with a lightning arrester flange part 15 a; the lightning arrester transition conductor 11a, the lightning arrester insulating core body 13a and the lightning arrester valve plate group 12a are arranged in the middle of the vertical arm of the lightning arrester insulating shell.

Preferably, the pluggable full-shielding grounding switch 2a includes a switch connecting assembly 20a, a switch static contact 21a, a switch moving contact 22a, a switch driving shaft 23a, a switch operating mechanism 24a and a switch insulating core 25 a; the disconnecting link connecting assembly 20a includes a disconnecting link insulating housing 201a and a disconnecting link connecting conductor 200a, one end of the disconnecting link insulating housing 201a is a disconnecting link plug 2011a, the disconnecting link connecting conductor 200a is arranged in the disconnecting link plug 2011a, a disconnecting link static contact 21a and a disconnecting link moving contact 22a are oppositely arranged in the disconnecting link insulating housing 21a, one end of the disconnecting link static contact 21a is electrically connected with the disconnecting link connecting conductor 200a, the other end of the disconnecting link static contact is matched with one end of the disconnecting link moving contact 22a, the other end of the disconnecting link moving contact 22a is connected with a disconnecting link operating mechanism 24a through a disconnecting link driving shaft 23a, a disconnecting link insulating core 25a wraps the disconnecting link moving contact 22a and the disconnecting link driving shaft 23a and is located between the disconnecting link moving contact 22a and the disconnecting link insulating housing 201a, and the other end of the disconnecting link insulating housing 201a is connected with a housing of the disconnecting link operating mechanism 24 a.

Preferably, the disconnecting link insulating core body 25a includes a group of capacitance screens which are embedded in the insulating layer and are alternately arranged, gradually increased in diameter and sequentially overlapped, and the capacitance screens of the group of capacitance screens are sequentially arranged from inside to outside and offset from the end, matched with the disconnecting link static contact 21a and the disconnecting link moving contact 22a, of the group of capacitance screens along the axial direction to the end direction close to the disconnecting link operating mechanism 24 a.

Preferably, the capacitance screen group in the disconnecting link insulating core body 25a comprises an insulating capacitor C1 formed by a plurality of capacitance screens at the inner side, a voltage dividing capacitor C2 formed by a plurality of capacitance screens at the outer side of the insulating capacitor C1, and the insulating capacitor C1 and the voltage dividing capacitor C2 are connected in series to form a capacitance voltage divider.

Preferably, the knife gate insulating housing 25a is connected to the housing of the knife gate operating mechanism 24a via a knife gate flange member 27 a.

Preferably, the switch insulating housing 201a is of an L-shaped structure and comprises a switch insulating housing transverse arm and a switch insulating housing vertical arm, one end of the switch insulating housing transverse arm is a switch plug 2011a, the other end of the switch insulating housing transverse arm is provided with a switch slot 2010a and is connected with one end of the switch insulating housing vertical arm in a bending manner, and the other end of the switch insulating housing vertical arm is connected with a housing of the switch operating mechanism 24 a; the knife switch static contact 21a, the knife switch moving contact 22a, the knife switch driving shaft 23a and the knife switch insulating core body 25a are all arranged in the middle of the vertical arm of the knife switch insulating shell.

Preferably, the pluggable full-shielding voltage sensor 3a includes a sensor connection assembly 30a, a sensor transition conductor 31a, a sensor insulator 32a, a sensor insulator core 33a and a sensor flange 34 a; the sensor connecting assembly 30a comprises a sensor insulating shell 301a and a sensor connecting conductor 300a, one end of the sensor insulating shell 301a is a sensor plug 3011a, the sensor connecting conductor 300a is arranged in the middle of the sensor plug 3011a, one end of a sensor transition conductor 31a is electrically connected with the sensor connecting conductor 300a, the other end of the sensor transition conductor is connected with one end of a sensor insulator 32a, a sensor insulating core 33a wraps the sensor transition conductor 31a and the sensor insulator 32a and is located in the sensor insulating shell 301a, and a sensor flange piece 34a is arranged at the other end of the sensor insulating shell 301a and is connected with the other end of the sensor insulator 32 a.

Preferably, the sensor insulating core body 33a includes a group of capacitive screens that are embedded in the sensor insulating core body and alternately arranged with the insulating layer, gradually increase along the axial inner diameter, and are sequentially overlapped, and the capacitive screens of the group of capacitive screens are sequentially arranged in a manner of offsetting from inside to outside in the direction from the sensor transition conductor 31a to the sensor flange piece 34 a.

Preferably, the capacitive shielding group in the sensor insulating core 33a includes an insulating capacitor C1 formed by a plurality of capacitive shielding on the inner side, a voltage dividing capacitor C2 formed by a plurality of capacitive shielding on the outer side of the insulating capacitor C1, and the insulating capacitor C1 and the voltage dividing capacitor C2 are connected in series to form a capacitive voltage divider.

Preferably, the sensor insulating shell 301a is of an L-shaped structure and comprises a sensor insulating shell cross arm and a sensor insulating shell vertical arm, wherein a sensor plug 3011a is arranged at one end of the sensor insulating shell cross arm, a sensor slot 3010a is formed in the other end of the sensor insulating shell cross arm, the sensor plug is connected with one end of the sensor insulating shell vertical arm in a bending mode, and the other end of the sensor insulating shell vertical arm is connected with the sensor flange part 34 a; the sensor transition conductor 31a, the sensor insulator 32a and the sensor insulating core body 33a are arranged in the middle of the vertical arm of the sensor insulating shell.

Preferably, the first insulating shell 1-21 comprises a pre-formed rubber insulating layer, an epoxy resin insulation provided in the pre-formed rubber insulating layer, an outer semi-conducting layer provided outside the pre-formed rubber insulating layer and an inner semi-conducting layer provided inside the epoxy resin insulation, the epoxy resin insulation being provided for covering the first connection conductor 1-20 and forming the first connection socket 1-22 in correspondence with the first connection conductor 1-20, the inner semi-conducting layer being in contact with the first connection conductor 1-20.

Preferably, each of the third insulation shell 51 and the fourth insulation shell 61 comprises a preformed rubber insulation layer, an epoxy resin insulation member disposed inside the preformed rubber insulation layer, an outer semiconductive layer disposed outside the preformed rubber insulation layer, and an inner semiconductive layer disposed inside the epoxy resin insulation member; the inner semiconductive layers of the third and fourth insulating shells 51, 61 are in contact with the third and fourth header conductors 50, 60, respectively.

The invention also provides a transformer substation comprising the novel fusion type combined electrical appliance.

Preferably, the transformer substation further comprises a transformer 1c, the transformer 1c comprises a transformer input end 10c and a transformer output end 11c, the transformer input end 10c is connected with one end of a high-voltage bus 2c through a high-voltage elbow joint 3c, the other end of the high-voltage bus 2c is connected with a fourth connector 6 of one group of novel fused combined electrical apparatuses, the transformer output end 11c is connected with one end of a low-voltage bus 5c through a low-voltage elbow joint 4c, and the other end of the low-voltage bus 5c is connected with a third connector 5 of the other group of novel fused combined electrical apparatuses;

preferably, the transformer substation also comprises a transformer substation shell 1h, the transformer 1c, the high-voltage elbow joint 3c, the high-voltage bus 2c, the low-voltage elbow joint 4c, the low-voltage bus 5c and the two groups of novel fusion type combined electrical appliances are all arranged in the transformer substation shell 1h, and the two ends of the bottom plate of the transformer substation shell 1h are provided with lifting rings for lifting the transformer substation.

Compared with the existing air insulation combined electrical apparatus and GIS combined electrical apparatus, the novel fusion combined electrical apparatus of the invention has the advantages that the first sleeve, the first connector, the circuit breaker, the second connector and the second sleeve all comprise respective insulation structures, and the insulation structures are connected with each other, so that the whole volume is obviously reduced without filling insulating gas, and the assembly efficiency is improved. The novel fusion type combined electrical apparatus can replace the existing GIS combined electrical apparatus and the existing switch cabinet, and is a brand new and pioneering combined electrical apparatus.

In addition, the first connector, the third connector and the fourth connector of the novel fusion type combined electrical apparatus improve the convenience of function expansion of the combined electrical apparatus.

The transformer substation comprises the novel fusion type combined electrical apparatus, the novel fusion type combined electrical apparatus on the input side of the transformer can replace the existing GIS combined electrical apparatus, no gas is required to be filled, and the size is small and the occupied area is small; the novel fusion type combined electrical apparatus located on the output side of the transformer can replace the existing switch cabinet, a low-voltage switch cabinet is not required to be arranged, the construction mode of the existing transformer substation is completely changed, and the construction difficulty of the transformer substation is greatly reduced.

In addition, the transformer substation is used as a mobile transformer substation, so that the size and the self weight of the mobile transformer substation can be obviously reduced, and the mobility of the mobile transformer substation is obviously improved.

Drawings

FIG. 1 is a schematic structural diagram of the novel fusion type combined electrical appliance;

fig. 2A is a schematic structural diagram of a first embodiment of the pluggable full-shielding arrester according to the present invention;

fig. 2B is a schematic structural diagram of a second embodiment of the pluggable full-shielding arrester according to the present invention;

fig. 3A is a schematic structural diagram of a plug-in fully-shielded grounding switch according to a first embodiment of the present invention;

fig. 3B is a schematic structural diagram of a plug-in fully-shielded grounding switch according to a second embodiment of the present invention;

FIG. 4A is a schematic structural diagram of a plug-in fully shielded voltage sensor according to a first embodiment of the present invention;

FIG. 4B is a schematic structural diagram of a plug-in fully shielded voltage sensor according to a second embodiment of the present invention;

FIG. 5 is a schematic diagram of the structure of a mobile substation of the present invention;

FIG. 6 is an enlarged schematic view of portion A of FIG. 5 in accordance with the present invention;

fig. 7 is another embodiment of the second connector coupled to the circuit breaker support sleeve.

Detailed Description

The following describes the embodiments of the novel fusion combiner in combination with the examples shown in fig. 1-4B. The novel fused combiner of the present invention is not limited to the description of the following embodiments.

The invention discloses a novel fusion type combined electrical apparatus, which comprises a first sleeve 1, a first connector 1-2, a circuit breaker 2, a second connector 2-3 and a second sleeve 3; the first sleeve 1 comprises a first conductor 10 and a first insulating core 11 wrapped outside the first conductor 10, two ends of the first sleeve 1 are respectively a first sleeve inner end and a first sleeve outer end, and the first sleeve inner end is connected with the circuit breaker 2 through a first connector 1-2; the second sleeve 3 comprises a second conductor 30 and a second insulating core body 31 wrapped outside the second conductor 30, two ends of the second sleeve 3 are a second sleeve inner end and a second sleeve outer end respectively, and the second sleeve inner end is connected with the circuit breaker 2 through a second connector 2-3; the circuit breaker 2 comprises a vacuum arc-extinguishing chamber 20, a moving contact and a fixed contact which are arranged in the vacuum arc-extinguishing chamber 20, a circuit breaker operating mechanism 24, an operating mechanism pull rod 25 and a circuit breaker insulating core body 23, wherein the vacuum arc-extinguishing chamber 20 is positioned in the circuit breaker insulating core body 23, and the circuit breaker operating mechanism 24 is connected with the moving contact in a driving way through the operating mechanism pull rod 25; the first connecting head 1-2 comprises first insulating shells 1-21 which are respectively matched with the first insulating core 11 and the breaker insulating core 23; the second connector 2-3 comprises a second insulating shell 2-31 which is matched with the circuit breaker insulating core body 23 and the second insulating core body 31 respectively; the static contact is electrically connected with one end of a first conductor 10 through a first connector 1-2, and the moving contact is electrically connected with one end of a second conductor 30 through a second connector 2-3.

Compared with the existing air insulation combined electrical apparatus and GIS combined electrical apparatus, the novel fusion combined electrical apparatus of the invention has the advantages that the first sleeve 1, the first connector 1-2, the circuit breaker 2, the second connector 2-3 and the second sleeve 3 comprise respective insulation structures, and the insulation structures are mutually connected, so that the whole volume is obviously reduced without filling insulating gas, and the assembly efficiency is improved.

Preferably, as shown in fig. 1, the novel fused combined electrical apparatus further includes a third connector 5, a fourth connector 6, and at least one of the pluggable full-shielding lightning arrester 1a, the pluggable full-shielding grounding switch 2a, and the pluggable full-shielding voltage sensor 3 a. The first sleeve 1 is connected with an input cable through a third connector 5, and the second sleeve 2 is connected with an output cable through a fourth connector 6. The first connector 1-2 and/or the third connector 5 and/or the fourth connector 6 can be connected with the plug-in type full-shielding lightning arrester 1a and/or the plug-in type full-shielding grounding switch 2a and/or the plug-in type full-shielding voltage sensor 3a in a plug-in and plug-out manner. The first connector 1-2, the third connector 5 and the fourth connector 6 of the novel fusion type combined electrical apparatus improve the convenience of function expansion of the combined electrical apparatus.

The novel fusion type combined electric appliance is further described in the specification, which is combined with the drawings and the specific embodiments.

As shown in fig. 1, the novel fusion type combined electrical apparatus of the invention comprises a first bushing 1, a first connector 1-2, a circuit breaker 2, a second connector 2-3 and a second bushing 3; the first sleeve 1 comprises a first conductor 10 and a first insulating core 11 wrapped outside the first conductor 10, two ends of the first sleeve 1 are respectively a first sleeve inner end and a first sleeve outer end, and the first sleeve inner end is connected with the circuit breaker 2 through a first connector 1-2; the second sleeve 3 comprises a second conductor 30 and a second insulating core body 31 wrapped outside the second conductor 30, two ends of the second sleeve 3 are a second sleeve inner end and a second sleeve outer end respectively, and the second sleeve inner end is connected with the circuit breaker 2 through a second connector 2-3; the circuit breaker 2 comprises a vacuum arc extinguish chamber 20, a circuit breaker moving contact and a circuit breaker static contact which are arranged in the vacuum arc extinguish chamber 20, a circuit breaker operating mechanism 24, an operating mechanism pull rod 25 and a circuit breaker insulating core 23, wherein the vacuum arc extinguish chamber 20 is positioned in the circuit breaker insulating core 23, the circuit breaker insulating core 23 carries out insulating protection on the vacuum arc extinguish chamber 20, and the circuit breaker operating mechanism 24 is connected with the circuit breaker moving contact through the operating mechanism pull rod 25 in a driving way; the first connecting head 1-2 comprises first insulating shells 1-21 which are respectively in insulating fit with the first insulating core 11 and the breaker insulating core 23; the second connector 2-3 comprises a second insulating shell 2-31 which is matched with the circuit breaker insulating core body 23 and the second insulating core body 31 respectively; the static contact of the circuit breaker is electrically connected with one end of a first conductor 10 through a first connector 1-2, and the moving contact of the circuit breaker is electrically connected with one end of a second conductor 30 through a second connector 2-3.

Preferably, as shown in fig. 1, the circuit breaker 2 further includes a moving contact conductor 21 and a fixed contact conductor 22, the moving contact conductor 21 and the fixed contact conductor 22 are located outside the vacuum arc-extinguishing chamber 20, the fixed contact of the circuit breaker is electrically connected to one end of the first conductor 10 through the fixed contact conductor 22, the moving contact of the circuit breaker is electrically connected to the second conductor 30 through the moving contact conductor 21, and the moving contact of the circuit breaker is further connected to the operating mechanism pull rod 25 through the moving contact conductor 21. Further, as shown in fig. 1, the fixed contact conductor 22, the breaker fixed contact, the breaker moving contact, the moving contact conductor 21, the operating mechanism pull rod 25 and the breaker operating mechanism 24 are sequentially arranged from top to bottom. Further, as shown in fig. 1, the circuit breaker 2 further includes a circuit breaker support sleeve 26, the circuit breaker support sleeve 26 is disposed between the second connector 2-3 and the circuit breaker operating mechanism 24, and two ends of the circuit breaker support sleeve 26 are respectively connected to the second connector 2-3 and the housing of the circuit breaker operating mechanism 24. Further, as shown in fig. 1, the second conductor 30 is a flexible conductor, and one end of the flexible conductor extends into the second insulating housing 2-30 and is electrically connected to the movable contact conductor 21. The circuit breaker support sleeve 26 is an insulating member from high voltage to ground potential, in this embodiment, an epoxy resin cast insulating member is adopted, a glass fiber material can be embedded according to needs to increase rigidity, and an insulating layer and a capacitive screen which are alternately arranged can be embedded in the insulating member.

Preferably, as shown in fig. 1, the first connector 1-2 further includes a first connector conductor 1-20 disposed in the first insulating case 1-21 and electrically connected at one end to the first conductor 10; the first insulating shell 1-21 is a three-way joint so as to be used for connecting with a plug-in type full-shielding lightning arrester 1a, a plug-in type full-shielding grounding switch 2a or a plug-in type full-shielding voltage sensor 3 a. Of course, when the plug-in type full-shielding lightning arrester 1a, the plug-in type full-shielding grounding switch 2a or the plug-in type full-shielding voltage sensor 3a is not connected, the plug-in type full-shielding lightning arrester can also be a linear or L-shaped two-way connector. The first insulating shells 1-21 comprise a first insulating shell cross arm and a first insulating shell vertical arm, one end of the first insulating shell vertical arm is connected with the middle of the first insulating shell cross arm, the other end of the first insulating shell vertical arm is connected with one end of a breaker insulating core body 23, the breaker insulating core body 23 is sleeved with the first insulating shell vertical arm, and one end of the first insulating shell cross arm is connected with one end of a first insulating core body 11. Further, the other end of the vertical arm of the first insulating shell is sleeved outside one end of the insulating core body 23 of the circuit breaker, and one end of the cross arm of the first insulating shell is sleeved outside one end of the first insulating core body 11. Further, as shown in fig. 1, the other end of the cross arm of the first insulating housing is provided with a first connector slot 1-22, and one end of the plug-in type full-shielding lightning arrester 1a or the plug-in type full-shielding grounding switch 2a or the plug-in type full-shielding voltage sensor 3a is inserted into the first connector slot 1-22 and electrically connected with the other end of the first connector conductor 1-20.

Preferably, the first insulation case 1-21 includes a pre-formed rubber insulation layer, an epoxy resin insulation member disposed in the pre-formed rubber insulation layer, an outer semi-conductive layer disposed outside the pre-formed rubber insulation layer, and an inner semi-conductive layer disposed inside the epoxy resin insulation member, the epoxy resin insulation member being disposed corresponding to the first connection conductor 1-20 for covering the first connection conductor 1-20 and forming the first connection socket 1-22, the inner semi-conductive layer being in contact with the first connection conductor 1-20, and the outer semi-conductive layer being for grounding. In this implementation, outer semi-conducting layer and interior semi-conducting layer adopt conductive rubber to make, and prefabricated rubber insulation layer adopts silicon rubber to make, and the both ends cover of being convenient for is outside first insulating core 11 and circuit breaker insulating core 23.

Preferably, as shown in fig. 1, the second insulating shell 2-30 is of a three-way structure, and comprises a second insulating shell vertical arm and a second insulating shell cross arm, wherein one end of the second insulating shell cross arm is connected with the middle part of the second insulating shell vertical arm; the second connector 2-3 further comprises a second connector T-shaped hole 2-31 arranged in the second connector, the second connector T-shaped hole 2-31 comprises a second connector vertical hole arranged in a second insulating shell vertical arm and a second connector transverse hole arranged in a second insulating shell transverse arm, and one end of the second connector transverse hole is communicated with the middle part of the second connector vertical hole; the moving contact conductor 21 and the operating mechanism pull rod 25 of the circuit breaker 2 penetrate through the second connector vertical hole, and one end of the second conductor 30 penetrates through the second connector transverse hole to be electrically connected with the moving contact conductor 21. Preferably, as shown in fig. 1, the second vertical insulating shell arm and the second horizontal insulating shell arm are integrally formed, two ends of the second vertical insulating shell arm are conical protrusions and are respectively inserted into the insulating core 23 of the circuit breaker and the supporting sleeve 26 of the circuit breaker, and one end of the second horizontal insulating shell arm is conical protrusion and is inserted into the second insulating core 31. The second insulating shells 2 to 30 of this embodiment are epoxy resin three-way joints, which are inner three-way joints (tapered protrusions are located at the joints), and of course, outer three-way joints (tapered grooves are located at the joints, see fig. 7) may also be used. And insulating glue is filled at the joint of the breaker insulating core 23 and the second insulating shell 2-30, the joint of the second insulating shell 2-30 and the breaker supporting sleeve 26 and the joint of the second insulating shell 2-30 and the second insulating core 31 so as to improve the sealing property. The space between the vacuum interrupter 20 and the breaker insulating core 23 may be filled with an insulating paste as needed, but this is not necessary. Referring to fig. 7, in another embodiment where the second connector 2-3 is connected to the circuit breaker support sleeve 26, the second insulating housing 2-30 is a poured epoxy three-way connector, an outer three-way connector is adopted, a connection position is a tapered groove, a connection position of the circuit breaker support sleeve 26 connected to the second insulating housing 2-30 is a tapered protrusion, an insulating adhesive is filled between the two, and the second connector 2-3 is fixedly connected to the circuit breaker support sleeve 26 through a flange. Preferably, the circuit breaker support sleeve 26 includes a set of capacitive screens 261 embedded therein, which are alternately arranged with the insulating layers, have gradually increasing inner diameters, and are sequentially nested.

Preferably, as shown in fig. 1, the novel fusion combiner further comprises a current transformer CT0 sleeved outside the first bushing 1 and a current transformer CT1 sleeved outside the insulating core 23 of the circuit breaker.

Further, as shown in fig. 1, the first insulating core 11 of the first bushing 1 is a capacitive insulating core, and includes a group of capacitive screens that are embedded in the capacitive insulating core and alternate with the insulating layers, have gradually increased inner diameters, and are sequentially overlapped, where the group of capacitive screens includes n1 capacitive screens, n1 is an integer greater than or equal to 2, and the group of capacitive screens gradually divides and insulates the high voltage in the first conductor 10, thereby improving the electric field distribution. Further, the group of capacitive screens comprises an insulating capacitor C1 formed by a plurality of capacitive screens on the inner side, a voltage dividing capacitor C2 formed by a plurality of capacitive screens outside the insulating capacitor C1, and a capacitive voltage divider formed by connecting the insulating capacitor C1 and the voltage dividing capacitor C2 in series, wherein the capacitive voltage divider is used as a voltage transformer PT0 and can be used for providing a detection signal. Furthermore, a plurality of capacitance screens which are mutually insulated and mutually overlapped along the axial direction from the outer end of the first sleeve to the inner end of the first sleeve can be arranged outside the insulation capacitor C1 and the voltage division capacitor C2 to form a shielding capacitor so as to shield external signal interference.

Breaker 2's breaker insulating core 23 is the electric capacity type insulating core, including inlaying a set of or multiunit capacitive screen that establishes respectively along the axial setting in breaker insulating core 23, every group capacitive screen all includes that polylith and insulating layer set up in turn, the internal diameter increases gradually and overlap the capacitive screen of cover in proper order to carry out insulation protection. As shown in fig. 1, the preferred circuit breaker insulating core 23 includes that inlay two sets of capacitive screens of locating its both ends respectively, and every group capacitive screen all includes that polylith and insulating layer set up in turn, the internal diameter increases gradually and overlap the capacitive screen of cover in proper order, two sets of capacitive screens encircle the flange at vacuum interrupter 20 both ends respectively, every capacitive screen of two sets of capacitive screens is equallyd divide and is do not encircle the corresponding flange, protects to the high pressure of both ends flange department. Furthermore, the plurality of capacitive screens of one group of capacitive screens close to one end of the first connecting head 1-2 in the circuit breaker insulating core 23 gradually shift to one end close to the circuit breaker operating mechanism 24 from the inner side to the outer side, and the plurality of capacitive screens of the other group of capacitive screens close to one end of the circuit breaker operating mechanism 24 gradually lengthen from the inner side to the outer side to form a ladder structure, so as to form a fully-closed bushing type circuit breaker. Of course, the offset modes of the two groups of capacitive screens can be adjusted according to different use conditions. Furthermore, n2 common capacitive screens which are alternately arranged with the insulating layers, have gradually increased diameters and are sequentially overlapped are arranged outside the two groups of capacitive screens, and n2 is an integer n2 which is more than or equal to 1, preferably 2. In addition, according to the requirement, the plurality of capacitive screens of each group of capacitive screens in the insulating core 23 of the circuit breaker may also form an insulating capacitor C1 and a voltage dividing capacitor C2 connected in series to form a capacitive voltage divider as the voltage transformer PT1, which is similar to the voltage transformer PT0 in the first insulating core 11 and will not be described again.

The second insulating core 31 of the second bushing 3 is a capacitive insulating core, and includes a plurality of capacitive screens embedded therein and alternately arranged with insulating layers, having gradually increasing inner diameters, and sequentially overlapping, and the first insulating core 11 is similar to the capacitive screens, and the capacitive screens can also be used to form a voltage transformer PT. The second insulating core 31 in this embodiment is different from the first insulating core 11 in that the second insulating core 31 has a cavity therein for the flexible conductor of the second conductor 30 to pass through, and the first insulating core 11 tightly covers the first conductor 10. Specifically, as shown in fig. 1, the left end and the right end of the first sleeve 1 are respectively an inner end and an outer end of the first sleeve, and the left end and the right end of the second sleeve 3 are respectively an inner end and an outer end of the second sleeve; the right end of a first insulating shell cross arm of a first insulating shell 1-21 of the first connecting head 1-2 is connected with the inner end of a first bushing, a first connecting head conductor 1-20 is arranged in the first insulating shell cross arm, the right end is respectively and electrically connected with the left end of a first conductor 10 and the upper end of a static contact conductor 22, the lower end of the static contact conductor 22 is electrically connected with a static contact of a circuit breaker, the upper end of a first insulating shell vertical arm is connected with the middle part of the first insulating shell cross arm, the upper end of a circuit breaker insulating core 23 is inserted in the first insulating shell vertical arm, the lower end of the circuit breaker insulating core 23 is connected with the upper end of a second insulating shell vertical arm of a second connecting head 2-3, the lower end of the second insulating shell vertical arm is connected with the upper end 26 of a circuit breaker supporting bushing, the lower end of the circuit breaker supporting bushing 26 is connected with a shell of a circuit breaker operating mechanism 24, and the left end of the second insulating shell cross arm of the second connecting head 2-3 is connected with the middle part of the second insulating shell vertical arm, the right end of the second insulating shell cross arm is connected with the left end of the second insulating core body 31. The invention discloses a novel fusion type combined electrical apparatus, wherein a current path formed by a first conductor 10, a first connector conductor 1-20, a static contact conductor 22, a breaker static contact, a breaker moving contact, a moving contact conductor 21 and a second conductor 20 is completely wrapped in an insulation structure formed by a first insulation core body 11, a first insulation shell 1-21, a breaker insulation core body 23, a second insulation shell 2-30 and a second insulation core body 31, so that the insulation property of the novel fusion type combined electrical apparatus is ensured, and therefore, the novel fusion type combined electrical apparatus does not need to be filled with insulating gases such as air, sulfur hexafluoride and the like, and the volume of the combined electrical apparatus is greatly reduced.

Preferably, as shown in fig. 1, the novel fusion type combined electrical apparatus further includes a third connector 5, a fourth connector 6, and at least one of a plug-in type full-shielding lightning arrester 1a, a plug-in type full-shielding grounding switch 2a, and a plug-in type full-shielding voltage sensor 3 a; the first connector 1-2 and/or the third connector 5 and/or the fourth connector 6 are/is connected with at least one of the plug-in type full-shielding lightning arrester 1a, the plug-in type full-shielding grounding switch 2a and the plug-in type full-shielding voltage sensor 3 a; preferably, the first connector 1-2 and/or the third connector 5 and/or the fourth connector 6 are connected with the plug-in type full-shielding lightning arrester 1a or the plug-in type full-shielding grounding switch 2a or the plug-in type full-shielding voltage sensor 3a in a plug-in and-out manner, so that configuration can be conveniently performed according to user requirements.

Preferably, as shown in fig. 1, the third connector 5 includes a third insulating housing 51 and a third connector conductor 50 disposed in the third insulating housing 51, two ends of the first conductor 10 are electrically connected to the fixed contact of the circuit breaker and the third connector conductor 50, respectively, and one end of the third insulating housing 51 is sleeved outside the outer end of the first bushing. Further, as shown in fig. 1, the third insulating housing 5 is an L-shaped structure, and includes a third insulating housing transverse arm and a third insulating housing vertical arm, wherein one end of the third insulating housing transverse arm is sleeved outside the outer end of the first sleeve, the other end of the third insulating housing transverse arm is provided with a third connector slot and is connected to the third insulating housing vertical arm in a bending manner, and an external power cable or bus is inserted into the third insulating housing vertical arm and electrically connected to the third connector conductor 50. Further, as shown in fig. 1, the first bushing 1 further includes a first bushing supporting shell 12 which is sleeved outside the first insulating core 11 and located between the first insulating core 11 and the cross arm of the third insulating shell. The first bushing supporting shell 12 is sleeved outside the first insulating core 11, and one end of the first insulating core 11 connected with the first insulating shells 1 to 21 is exposed, so that the first insulating core 11 and one end of the first conductor 10 are inserted into the first insulating shells 1 to 21, and the third insulating shell 51 is wrapped outside the first bushing supporting shell 12. The first casing support shell 12 is an insulating support, and in this embodiment the first casing support shell 12 is an epoxy insulation embedded with a fiberglass material.

Third insulating shell 51 includes the prefabricated rubber insulating layer, sets up the epoxy insulating part in the prefabricated rubber insulating layer, sets up at the outside outer semi-conducting layer of prefabricated rubber insulating layer and sets up at the inboard interior semi-conducting layer of epoxy insulating part, and the epoxy insulating part corresponds third connector conductor 50 and sets up and be used for cladding third connector conductor 50 and form third connector slot, and interior semi-conducting layer and third connector conductor 50 contact, and outer semi-conducting layer is used for ground connection. In the implementation, the outer semi-conducting layer and the inner semi-conducting layer are made of conductive rubber, the prefabricated rubber insulating layer is made of silicon rubber, the prefabricated rubber insulating layer can be conveniently sleeved outside the first sleeve, and a third insulating shell vertical arm for covering the incoming cable or the bus is formed.

In this embodiment, the third insulating case 5 is an L-shaped structure, which is convenient for setting the third connector slot, and certainly, the third connector slot may not be set, and when the third connector slot is not set, the third insulating case 5 may also be a straight-line type, an L-shaped or other structures.

Preferably, as shown in fig. 1, the fourth connector 6 includes a fourth insulating shell 61 and a fourth connector conductor 60 disposed in the fourth insulating shell 61, two ends of the second conductor 30 are electrically connected to the movable contact and the fourth connector conductor 60, respectively, and one end of the fourth insulating shell 61 is sleeved outside the outer end of the second sleeve. Further, as shown in fig. 1, a fourth connector slot is disposed at the other end of the fourth insulating casing 61, and an external power cable or a bus is inserted into the fourth connector slot and electrically connected to the third connector conductive member 60. Further, as shown in fig. 1, the second bushing 3 further includes a second bushing supporting shell 32 disposed outside the second insulating core 31 and between the second insulating core 31 and the fourth insulating shell 61. The second bushing supporting shell 32 integrally wraps the second insulating core body 31, the fourth insulating shell 61 wraps the second insulating core body 31, a cavity is formed inside the second insulating core body 31, one end of the second insulating shell connected with the second connector 2-3 is a conical groove, one end of a cross arm of the second insulating shell 2-30 of the second connector 2-3 is a conical protrusion, and one end of the cross arm of the second insulating shell 2-30 is inserted into the second insulating core body 31.

The second ferrule support housing 32 is an insulating support member, and in this embodiment, the second ferrule support housing 32 is an epoxy insulating member embedded with a fiberglass material.

Fourth insulating shell 61's structure is the same with third insulating shell 51, including the prefabricated rubber insulating layer, set up the epoxy insulating part in the prefabricated rubber insulating layer, set up at the outside outer semi-conducting layer of prefabricated rubber insulating layer and set up at the inboard interior semi-conducting layer of epoxy insulating part, the setting of epoxy insulating part corresponding fourth connector conductor 60 is used for cladding fourth connector conductor 60 and forms the fourth connector slot, interior semi-conducting layer and fourth connector conductor 60 contact, outer semi-conducting layer is used for ground connection. In the implementation, the outer semi-conducting layer and the inner semi-conducting layer are made of conductive rubber, the prefabricated rubber insulating layer is made of silicon rubber, and two ends of the prefabricated rubber insulating layer are conveniently sleeved outside the third sleeve and the output cable respectively. The fourth insulating case 61 may be provided in a straight shape or an L shape or other shapes as needed.

Specifically, as shown in fig. 1, the left end of the cross arm of the third insulating shell is sleeved outside the first casing supporting shell 12, the right end of the cross arm of the third insulating shell is provided with a third connector slot, and the lower end of the vertical arm of the third insulating shell is connected with the right end of the cross arm of the third insulating shell in a bending manner; the fourth insulating casing left end is nested outside the second ferrule support casing 32 and the fourth connector conductor 60 is disposed inside the fourth insulating casing right end.

Preferably, as shown in fig. 1, the novel fusion type combined electrical apparatus of the present invention includes a combined electrical apparatus casing H, and a fixing partition board for fixing the first bushing 1, the circuit breaker 2, and the second bushing 3 is disposed in the combined electrical apparatus casing H. According to the requirements, the novel fusion type combined electric appliance can also be installed through a support, is a totally-enclosed combined electric appliance, can be directly buried underground or placed under water without wrapping any protective shell, and is suitable for various use environments.

As shown in fig. 2A, a first embodiment of the plug-in full-shield lightning arrester 1a is shown.

As shown in fig. 2A, the pluggable full-shielding arrester 1a includes an arrester connecting assembly 10a, an arrester valve plate group 12A, an arrester insulating core body 13a and an arrester flange member 15 a; the lightning arrester connecting assembly 10a comprises a lightning arrester insulating shell 101a and a lightning arrester connecting conductor 100a, one end of the lightning arrester insulating shell 101a is an arrester plug 1011a which is matched with a first connector slot 1-22 of a first connector 1-2 or a third connector slot of a third connector 5 or a fourth connector slot of a fourth connector 6 in a plugging manner, the lightning arrester connecting conductor 100a is arranged in the lightning arrester plug 1011a, one end of the lightning arrester connecting conductor is electrically connected with a lightning arrester valve block group 12a, the other end of the lightning arrester connecting conductor is electrically connected with the first connector 1-2 or the third connector 5 or the fourth connector 6, the lightning arrester valve block group 12a is arranged in the lightning arrester insulating shell 101a, a lightning arrester insulating core body 13a is sleeved outside the lightning arrester valve block group 12a and is located between the lightning arrester valve block group 12a and the lightning arrester insulating shell 101a, and a lightning arrester flange 15a is arranged at the other end of the lightning arrester insulating shell 101 a.

Further, as shown in fig. 2A, the pluggable full-shielding arrester 1a further includes an arrester transition conductor 11a disposed in the arrester insulating housing 101a and located between the arrester connection conductor 100a and the arrester valve plate group 12A, one end of the arrester transition conductor 11a is electrically connected to the arrester connection conductor 100a, and the other end is electrically connected to one end of the arrester valve plate group 12A. Further, as shown in fig. 2A, the arrester insulating housing 101a is of an L-shaped structure, and includes an arrester insulating housing cross arm and an arrester insulating housing vertical arm, where one end of the arrester insulating housing cross arm is an arrester plug 1011a, the other end of the arrester insulating housing cross arm is bent and connected with one end of the arrester insulating housing vertical arm, and the other end of the arrester insulating housing vertical arm is connected with the arrester flange 15 a; the lightning arrester transition conductor 11a, the lightning arrester insulating core body 13a and the lightning arrester valve plate group 12a are arranged in the middle of the vertical arm of the lightning arrester insulating shell.

Preferably, as shown in fig. 2A, the arrester insulating core 13a includes a group of capacitive screens embedded therein and alternately arranged with the insulating layers, the capacitive screens having gradually increasing diameters and being sequentially overlapped, and the capacitive screens of the group of capacitive screens sequentially shift from inside to outside along the axial direction from the end close to the arrester connecting conductor 100a to the end close to the arrester flange member 15 a. Further, as shown in fig. 2A, the pluggable full-shielding arrester 1a further includes an arrester valve plate outgoing line 17a and an arrester capacitor voltage dividing outgoing line 16 a. Two lightning arrester valve plate outgoing lines 17a are respectively and electrically connected with two ends of one lightning arrester valve plate, which is far away from the lightning arrester connecting conductor 100a, of the lightning arrester valve plate group 12a, one is grounded, and the other is used as a voltage division signal; one lightning arrester valve plate far away from the lightning arrester connecting conductor 100a in the lightning arrester valve plate group 12a is used as a valve plate voltage division capacitor, other lightning arrester valve plates are used as valve plate main capacitors, and the valve plate main capacitors and the valve plate voltage division capacitors form a capacitive voltage divider to output signals. Capacitive screen group in the insulating core 13a of arrester can constitute capacitive voltage divider, and this group of capacitive screen includes insulating capacitance C1 that a plurality of capacitive screens of inboard constitute, is located the partial pressure electric capacity C2 that a plurality of capacitive screens of insulating capacitance C1 outside constitute, and insulating capacitance C1 and partial pressure electric capacity C2 establish ties and constitute capacitive voltage divider, adopt the scheme of similar first sleeve pipe 1, arrester capacitance partial pressure lead-out wire 16a is connected with capacitive voltage divider. Two arrester capacitance voltage division outgoing lines 16a, one is connected with the outermost capacitance screen and is used for ground connection, the other is electrically connected with the n3 th capacitance screen on the outermost side of the capacitance screen group in the arrester insulating core body 13a, and n3 is an integer more than or equal to 2. Further, n3 is preferably 2. It should be noted that the arrester valve plate outgoing line 17a and the arrester capacitive voltage division outgoing line 16a are used for outputting a detection signal, and as a deterioration scheme, only a ground lead may be provided, and a capacitive voltage divider and a corresponding voltage division signal line are not provided, and no detection signal is output.

Specifically, as shown in fig. 2A, the left end of the cross arm of the arrester insulating case is an arrester plug 1011a, the right end of the cross arm is provided with an arrester slot 1011a and is connected with the upper end of the vertical arm of the arrester insulating case in a bending manner, the left end of the arrester connecting conductor 100a protrudes out of the arrester plug 1011a, the right end of the cross arm is connected with the upper end of the arrester transition conductor 11a through a fastening screw 14a, the lower end of the arrester transition conductor 11a is connected with the upper end of the arrester valve block group 12A, an arrester flange 15a is arranged at the lower end of the vertical arm of the arrester insulating case and is connected with the lower end of the arrester valve block group 12A, the leading-out wire 17a of the arrester valve block is connected with the upper and lower ends of the lowest arrester valve block, and the capacitive screen of the arrester insulating core 13a sequentially deflects downward from the upper end of the vertical arm of the arrester insulating case to the lower end of the vertical arm of the arrester insulating case. The arrester slot 1010a arranged at the right end of the transverse arm of the arrester insulating shell is used for being continuously matched with other equipment in a plugging mode, such as a pluggable full-shielding grounding switch 2a or a pluggable full-shielding voltage sensor 3 a. Of course, if other structures are not needed to be connected, the right end of the transverse arm of the arrester insulating shell is a closed arrester insulating shell.

As shown in fig. 2B, a second embodiment of the plug-in full-shield lightning arrester 1a is shown.

The present embodiment differs from the first embodiment in that: and lightning arrester slots 1010a are formed at two ends of the transverse arm of the lightning arrester insulating shell.

It should be noted that, when the first connector slots 1 to 22 of the first connectors 1 to 2, the third connector slot of the third connector 5, and the fourth connector slot of the fourth connector 6 are changed into plugs, the plug-in type full-shielding lightning arrester is in plug-in fit with the plug-in type full-shielding lightning arrester 1a of the second embodiment.

Fig. 3A shows a first embodiment of the pluggable fully-shielded grounding switch 2 a.

As shown in fig. 3A, the pluggable fully-shielded grounding switch 2a includes a switch connection assembly 20a, a switch static contact 21a, a switch movable contact 22a, a switch driving shaft 23A, a switch operating mechanism 24a and a switch insulating core 25 a; the knife switch connecting component 20a comprises a knife switch insulating shell 201a and a knife switch connecting conductor 200a, one end of the knife switch insulating shell 201a is a knife switch plug 2011a which is in plug-in fit with a first connector slot 1-22 of a first connector 1-2, a third connector slot of a third connector 5 or a fourth connector slot of a fourth connector, the knife switch connecting conductor 200a is arranged in the knife switch plug 2011a, a knife switch static contact 21a and a knife switch moving contact 22a are oppositely arranged in the knife switch insulating shell 21a, one end of the knife switch static contact 21a is electrically connected with the knife switch connecting conductor 200a, the other end of the knife switch moving contact 22a is matched with one end of the knife switch moving contact 22a, the other end of the knife switch moving contact 22a is connected with a knife switch operating mechanism 24a through a knife switch driving shaft 23a, a knife switch insulating core 25a is wrapped outside the knife switch moving contact 22a and the knife switch driving shaft 23a and is positioned between the knife switch moving contact 22a and the knife switch insulating shell 201a, the other end of the switch insulating case 201a is connected to the case of the switch operating mechanism 24 a. Further, as shown in fig. 3A, the knife gate insulating housing 25a is connected to the housing of the knife gate operating mechanism 24a via a knife gate flange member 27 a. Further, as shown in fig. 3A, the switch insulating housing 201a is an L-shaped structure, and includes a switch insulating housing transverse arm and a switch insulating housing vertical arm, one end of the switch insulating housing transverse arm is a switch plug 2011a, the other end of the switch insulating housing transverse arm is connected with one end of the switch insulating housing vertical arm in a bent manner, and the other end of the switch insulating housing vertical arm is connected with the housing of the switch operating mechanism 24 a; the knife switch static contact 21a, the knife switch moving contact 22a, the knife switch driving shaft 23a and the knife switch insulating core body 25a are all arranged in the middle of the vertical arm of the knife switch insulating shell. Further, a switch slot 2010a is arranged at one end of the cross arm of the switch insulating shell connected with the vertical arm of the switch insulating shell, and is used for connecting other plug-in components or connecting a cable or a bus, such as a plug-in type full-shielding lightning arrester 1a or a plug-in type full-shielding voltage sensor 3 a. Of course, the knife switch slot 2010a is not provided, and the right end of the cross arm of the knife switch insulating shell is a closed knife switch insulating shell.

Preferably, as shown in fig. 3A, the disconnecting link insulating core 25a includes a group of capacitive screens embedded in the insulating layer and alternately arranged with the insulating layer, the diameters of the capacitive screens are gradually increased, and the capacitive screens of the group of capacitive screens are sequentially overlapped, and the capacitive screens of the group of capacitive screens are sequentially offset from inside to outside along the axial direction from the end of the disconnecting link stationary contact 21a matched with the disconnecting link moving contact 22a to the direction close to the end of the disconnecting link operating mechanism 24 a. Further, as shown in fig. 3A, the pluggable full-shielding grounding switch 2a further includes a switch capacitance voltage-dividing outgoing line 26a, a capacitive screen group in the switch insulating core 25a can form a capacitive voltage divider, the capacitive screen group includes an insulating capacitance C1 formed by a plurality of capacitive screens on the inner side, a voltage-dividing capacitance C2 formed by a plurality of capacitive screens outside the insulating capacitance C1, the insulating capacitance C1 and the voltage-dividing capacitance C2 are connected in series to form a capacitive voltage divider, and the switch capacitance voltage-dividing outgoing line 26a is connected with the capacitive voltage divider by adopting a scheme similar to the first bushing 1. Two disconnecting link capacitor voltage-dividing outgoing lines 26a, one is connected with the outermost capacitor screen for grounding, the other is electrically connected with the n4 th capacitor screen at the outermost side of the capacitor screen group embedded in the disconnecting link insulating core 25a (namely the capacitor screen at the joint of the insulating capacitor C1 and the voltage-dividing capacitor C2), and the n4 bit is an integer more than or equal to 2. Further, n4 is preferably 2. As a deterioration scheme, a capacitive voltage divider may not be formed, only the capacitive screen group is used for voltage division insulation, and no detection signal is output.

Specifically, as shown in the direction of fig. 3A, the left end of the cross arm of the disconnecting link insulating housing is a disconnecting link plug 2011a, the right end of the cross arm is provided with a disconnecting link slot 2010a and is connected with the upper end of the vertical arm of the disconnecting link insulating housing, and the lower end of the vertical arm of the disconnecting link insulating housing is connected with the housing of the disconnecting link operating mechanism 24a through a disconnecting link flange 27 a; the left end of the disconnecting link connecting conductor 200a protrudes out of the disconnecting link plug 2011a, the left end is connected with the upper end of a disconnecting link static contact 21a, the lower end of the disconnecting link static contact 21a is matched with the upper end of a disconnecting link moving contact 22a, the lower end of the disconnecting link moving contact 22a is connected with a disconnecting link operating mechanism 24a through a disconnecting link driving shaft 23a, and a disconnecting link insulating core 25a is sleeved outside the disconnecting link static contact 21a, the disconnecting link moving contact 22a and the disconnecting link driving shaft 23a and is located inside a vertical arm of a disconnecting link insulating shell; the capacitance screen that knife switch insulating core 25a was inlayed and is established is from interior to exterior, along the axial from the vertical arm upper end of knife switch insulating casing to the setting of the vertical arm lower extreme direction of knife switch insulating casing skew in proper order, and knife switch electric capacity partial pressure lead-out wire 26a is electric with two blocks of electric capacity screens in the outside of electric capacity screen group.

Fig. 3B shows a second embodiment of the pluggable fully-shielded grounding switch 2 a.

The present embodiment differs from the first embodiment in that: and the two ends of the cross arm of the disconnecting link insulating shell are provided with disconnecting link slots 3010 a.

It should be noted that, when the first connector slots 1 to 22 of the first connectors 1 to 2, the third connector slot of the third connector 5, and the fourth connector slot of the fourth connector 6 are changed into plugs, the plugs are plugged and matched with the pluggable full-shielding grounding switch 2a of the second embodiment.

Fig. 4A shows a first embodiment of the pluggable full-shield voltage sensor.

As shown in fig. 4A, the pluggable full-shielded voltage sensor includes a sensor connection assembly 30a, a sensor transition conductor 31a, a sensor insulator 32a, a sensor insulator core 33a, and a sensor flange 34A; the sensor connecting assembly 30a comprises a sensor insulating shell 301a and a sensor connecting conductor 300a, one end of the sensor insulating shell 301a is a sensor plug 3011a which is in plug-in fit with a first connector slot 1-22 of a first connector 1-2 or a third connector slot of a third connector 5 or a fourth connector slot of a fourth connector 6, the sensor connecting conductor 300a is arranged in the middle of the sensor plug 3011a, one end of the sensor connecting conductor is electrically connected with the first connector 1-2 or the third connector 5 or the fourth connector 6, one end of a sensor transition conductor 31a is electrically connected with the sensor connecting conductor 300a, the other end of the sensor transition conductor is connected with one end of a sensor insulating shell 32a, a sensor insulating core 32a wraps the sensor transition conductor 31a and the sensor insulator 32a and is located in the sensor insulating shell 301a, and a sensor flange 34a is arranged at the other end of the sensor insulating shell 301a and is connected with the other end of the sensor insulator 32 a. Further, as shown in fig. 4A, the sensor insulating shell 301a is of an L-shaped structure, and includes a sensor insulating shell cross arm and a sensor insulating shell vertical arm, the sensor insulating shell cross arm has one end provided with a sensor plug 3011a and the other end connected to one end of the sensor insulating shell vertical arm in a bent manner, and the other end connected to the sensor flange 34A; the sensor transition conductor 31a, the sensor insulator 32a and the sensor insulating core body 33a are arranged in the middle of the vertical arm of the sensor insulating shell.

Preferably, as shown in fig. 4A, the sensor insulating core 33a includes a group of capacitive screens that are embedded in the sensor insulating core and alternate with the insulating layer, have gradually increased inner diameters, and are sequentially overlapped, and the capacitive screens of the group of capacitive screens are sequentially offset from inside to outside along the axial direction from the sensor transition conductor 31a to the direction of the sensor flange 34A. Further, as shown in fig. 4A, the pluggable full-shielding voltage sensor 3a further includes a sensor capacitor voltage-dividing outgoing line 35a, a capacitive screen group in the sensor insulating core 33a can constitute a capacitive voltage divider, the capacitive screen group includes an insulating capacitor C1 formed by a plurality of capacitive screens on the inner side, a voltage-dividing capacitor C2 formed by a plurality of capacitive screens outside the insulating capacitor C1, the insulating capacitor C1 and the voltage-dividing capacitor C2 are connected in series to form a capacitive voltage divider, and the sensor capacitor voltage-dividing outgoing line 35a is connected with the capacitive voltage divider by adopting a scheme similar to the first bushing 1. Two sensor capacitance voltage-dividing outgoing lines 35a, one is connected with the outermost capacitance screen and is used for grounding, the other is electrically connected with n5 capacitance screens (namely the capacitance screen at the joint of the insulation capacitance C1 and the voltage-dividing capacitance C2) at the outermost side of the capacitance screen group embedded in the sensor insulation core body 33a, and n5 is an integer more than or equal to 2. Further, n5 is preferably 2. As a deterioration scheme, a capacitive voltage divider may not be formed, only the capacitive screen group is used for voltage division insulation, and no detection signal is output.

Specifically, as shown in fig. 4A, the left end of the cross arm of the sensor insulating shell is provided with a sensor plug 3011a, the right end of the cross arm of the sensor insulating shell is provided with a sensor slot 3010a and is connected with the upper end of the vertical arm of the sensor insulating shell, and the lower end of the vertical arm of the sensor insulating shell is connected with the sensor flange 35 a; the left end of the sensor connecting conductor 300a is arranged outside the sensor plug 3011a in a protruding mode, the right end of the sensor connecting conductor is connected with the upper end of the sensor transition conductor 31a, the lower end of the sensor transition conductor 31a is connected with the upper end of the sensor insulator 32a, and the lower end of the sensor insulator 32a is connected with the sensor flange piece 35 a; the capacitance screen group is embedded in the sensor insulation core body 33a, and the capacitance screen of the capacitance screen group is sequentially arranged from inside to outside in a downward offset manner from the upper end of the sensor insulation core body 33a to the lower end of the sensor insulation core body 33 a. The sensor slot 3010a is used to connect other plug-in components or to access cables or buses, such as a plug-in fully shielded lightning arrester 1a or a fully shielded grounding switch 2 a.

Fig. 4B shows a second embodiment of the pluggable full-shield voltage sensor 3 a.

The present embodiment differs from the first embodiment in that: and knife switch slots 3010a are formed in two ends of the cross arm of the sensor insulating shell.

It should be noted that, when the first connector slots 1 to 22 of the first connectors 1 to 2, the third connector slot of the third connector 5, and the fourth connector slot of the fourth connector 6 are changed into plugs, the plug-in type full-shielding sensor 3a of the second embodiment is plugged and matched.

Preferably, the first insulating core 11 of the first bushing 1, the second insulating core 31 of the second bushing 3, the breaker insulating core 23 of the circuit breaker 2, the arrester insulating core 13a of the plug-in type fully-shielded arrester 1a, the switch insulating core 25a of the plug-in type fully-shielded grounding switch 2a, and the sensor insulating core 33a of the plug-in type fully-shielded voltage sensor 3a are formed by using an epoxy resin-impregnated glass fiber material, insulating paper or other insulating materials as insulating layers, using a semi-conductive tape or metal tape as a capacitive screen, and winding the insulating layers and the capacitive screen alternately. Preferably, the outermost capacitive screens of the capacitive screen group embedded in the first insulating core 11, the second insulating core 31, the breaker insulating core 23, the arrester insulating core 13a, the disconnecting link insulating core 25a and the sensor insulating core 33a are all grounded. The structure enables the whole shell of the novel fusion combined electrical apparatus to be the ground potential, thereby greatly improving the electricity utilization safety of users.

The arrester insulating shell 101a, the disconnecting link insulating shell 201a and the sensor insulating shell 301a can be made of cast epoxy resin or epoxy resin embedded glass fiber materials. As shown in fig. 5, the invention also discloses a transformer substation comprising the novel fusion type combined electrical apparatus.

Preferably, as shown in fig. 5, the transformer substation of the present invention further includes a transformer substation housing 1h and a transformer 1c, the transformer 1c includes a transformer input end 10c and a transformer output end 11c, the transformer input end 10c is connected to one end of a high-voltage bus 2c through a high-voltage elbow joint 3c, the other end of the high-voltage bus 2c is connected to a fourth connector 6 of a group of novel fusion type combined electrical apparatuses, the transformer output end 11c is connected to one end of a low-voltage bus 5c through a low-voltage elbow joint 4c, and the other end of the low-voltage bus 5c is connected to a third connector 5 of another group of novel fusion type combined electrical apparatuses; and the transformer 1c, the high-voltage elbow joint 3c, the high-voltage bus 2c, the low-voltage elbow joint 4c, the low-voltage bus 5c and the two groups of novel fused combined electrical appliances are all arranged in a transformer substation shell 1 h.

The transformer substation comprises the novel fusion type combined electrical apparatus, the novel fusion type combined electrical apparatus on the input side of the transformer can replace the existing GIS combined electrical apparatus, no gas is required to be filled, and the size is small and the occupied area is small; the novel fusion type combined electrical apparatus located on the output side of the transformer can replace the existing switch cabinet, a low-voltage switch cabinet is not required to be arranged, the construction mode of the existing transformer substation is completely changed, and the construction difficulty of the transformer substation is greatly reduced. It should be noted that the high voltage and the low voltage are relative concepts, for example, the input side of the transformer is 110KV high voltage, the output side is 35KV high voltage, the corresponding novel fused combined electrical apparatus is configured according to the matched high voltage, and the transformer substation housing 1h may not be provided, just for convenience of management and installation.

Further, the transformer substation shown in fig. 5 is a movable transformer substation and comprises a transformer substation shell 1h, and hoisting rings for hoisting the movable transformer substation are arranged at two ends of a bottom plate of the transformer substation shell 1 h. The movable transformer substation comprises the novel fusion type combined electrical apparatus, so that the size and the dead weight of the movable transformer substation can be obviously reduced, and the mobility of the movable transformer substation is obviously improved.

Preferably, as shown in fig. 5, the new type of fusion combiner connected to the transformer input end 10c of the transformer 1c is a high-voltage side combiner, and the new type of fusion combiner connected to the transformer output end 11c of the transformer 1c is a low-voltage side combiner; the third connector 5 of the high-voltage side combined electrical appliance is used for connecting high-voltage electricity from a high-voltage electricity inlet cable, for example, an overhead line is connected through a sleeve or a cable is connected through a cable head, and the first connector slot 1-22 of the first connector 1-2 is connected with one of the plug-in type full-shielding lightning arrester 1a, the plug-in type full-shielding grounding disconnecting link 2a and the plug-in type full-shielding voltage sensor 3 a; according to the requirement, the pluggable full-shielding lightning arrester 1a, the pluggable full-shielding grounding switch 2a and the pluggable full-shielding voltage sensor 3a can be plugged in sequence. As shown in fig. 6, the third connector 5 of the low-voltage side combined electrical apparatus may further be connected to at least one of the plug-in type fully-shielded lightning arrester 1a, the plug-in type fully-shielded grounding switch 2a, and the plug-in type fully-shielded voltage sensor 3a, or the plug-in type fully-shielded lightning arrester 1a, the plug-in type fully-shielded grounding switch 2a, and the plug-in type fully-shielded voltage sensor 3a may be sequentially plugged. And a fourth connector 6 of the low-voltage side combined electrical appliance is used as an output end and is connected with an output cable, and can be connected with at least one of the plug-in type full-shielding lightning arrester 1a, the plug-in type full-shielding grounding switch 2a and the plug-in type full-shielding voltage sensor 3 a.

The high-pressure elbow joint 3c and the low-pressure elbow joint 4c may be implemented as existing european or american cable joints. In addition, as a degradation scheme, only one group of novel fusion type combined electrical apparatus can be arranged to replace the existing GIS combined electrical apparatus or low-voltage switch cabinet, namely, only the high-voltage side combined electrical apparatus or the low-voltage side combined electrical apparatus is arranged, and the existing low-voltage switch cabinet or GIS combined electrical apparatus is still used on the other side of the transformer.

Furthermore, the first connector 1-2, the third connector 5 and the fourth connector 6 all comprise insulating plugs, and the insulating plugs are matched with the first connector slots 1-22, the third connector slots and the fourth connector slots.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, numerous simple deductions or substitutions may be made without departing from the spirit of the invention, which shall be deemed to belong to the scope of the invention.

Claims

1. A novel fusion type combined electrical apparatus is characterized by comprising a first sleeve (1), a first connector (1-2), a circuit breaker (2), a second connector (2-3) and a second sleeve (3);

the first sleeve (1) comprises a first conductor (10) and a first insulating core (11) wrapped outside the first conductor (10), the two ends of the first sleeve (1) are respectively the inner end of the first sleeve and the outer end of the first sleeve, and the inner end of the first sleeve is connected with the circuit breaker (2) through a first connector (1-2);

the second sleeve (3) comprises a second conductor (30) and a second insulating core body (31) wrapped outside the second conductor (30), the two ends of the second sleeve (3) are respectively the inner end of the second sleeve and the outer end of the second sleeve, and the inner end of the second sleeve is connected with the circuit breaker (2) through a second connector (2-3);

the circuit breaker (2) comprises a vacuum arc-extinguishing chamber (20), a circuit breaker moving contact and a circuit breaker static contact which are arranged in the vacuum arc-extinguishing chamber (20), a circuit breaker operating mechanism (24), an operating mechanism pull rod (25) and a circuit breaker insulating core body (23), wherein the vacuum arc-extinguishing chamber (20) is positioned in the circuit breaker insulating core body (23), and the circuit breaker operating mechanism (24) is connected with the circuit breaker moving contact in a driving mode through the operating mechanism pull rod (25);

the first connecting head (1-2) comprises a first insulating shell (1-21) which is matched with the first insulating core body (11) and the breaker insulating core body (23) respectively; the second connector (2-3) comprises a second insulating shell (2-31) which is matched with the circuit breaker insulating core body (23) and the second insulating core body (31) respectively; the static contact of the circuit breaker is electrically connected with one end of a first conductor (10) through a first connector (1-2), and the moving contact of the circuit breaker is electrically connected with one end of a second conductor (30) through a second connector (2-3).

2. The novel fusion combined electrical apparatus according to claim 1, characterized in that: the novel fusion type combined electrical apparatus further comprises a third connector (5) and a fourth connector (6), the first sleeve (1) is connected with the incoming cable through the third connector (5), and the second sleeve (2) is connected with the outgoing cable through the fourth connector (6).

3. The novel fusion combined electrical apparatus according to claim 2, characterized in that: the novel fusion type combined electrical apparatus also comprises one or more of a plug-in type full-shielding lightning arrester (1a), a plug-in type full-shielding grounding disconnecting link (2a) and a plug-in type full-shielding voltage sensor (3 a);

the plug-in type full-shielding lightning arrester (1a) and/or the plug-in type full-shielding grounding disconnecting link (2a) and/or the plug-in type full-shielding voltage sensor (3a) are/is inserted and connected onto the first connector (1-2) and/or the third connector (5) and/or the fourth connector (6).

4. The novel fusion type combined electrical apparatus according to claim 1, characterized in that: the first connector (1-2) further comprises a first connector conductor (1-20) disposed in the first insulating case (1-21) and having one end electrically connected to the first conductor (10); the first insulating shell (1-21) is of a three-way structure and comprises a first insulating shell cross arm and a first insulating shell vertical arm, one end of the first insulating shell vertical arm is connected with the middle of the first insulating shell cross arm, the other end of the first insulating shell vertical arm is connected with one end of a breaker insulating core body (23), one end of the first insulating shell cross arm is connected with one end of a first insulating core body (11), and a first connecting head slot (1-22) is formed in the other end of the first insulating shell cross arm.

5. The novel fusion combined electrical apparatus according to claim 1, characterized in that: the second insulating shell (2-30) is of a three-way structure and comprises a second insulating shell vertical arm and a second insulating shell cross arm, and one end of the second insulating shell cross arm is connected with the middle part of the second insulating shell vertical arm; the second connector (2-3) further comprises a second connector T-shaped hole (2-31) arranged in the second connector T-shaped hole, the second connector T-shaped hole (2-31) comprises a second connector vertical hole arranged in a second insulating shell vertical arm and a second connector transverse hole arranged in a second insulating shell transverse arm, and one end of the second connector transverse hole is communicated with the middle of the second connector vertical hole; a moving contact conductor (21) and an operating mechanism pull rod (25) of the circuit breaker (2) penetrate through a second connector vertical hole, and one end of a second conductor (30) penetrates through a second connector transverse hole to be electrically connected with the moving contact conductor (21).

6. The novel fusion combined electrical apparatus according to claim 2, characterized in that: the third connector (5) comprises a third insulating shell (51) and a third connector conductor (50) arranged in the third insulating shell (51), two ends of the first conductor (10) are respectively electrically connected with the fixed contact of the circuit breaker and the third connector conductor (50), and one end of the third insulating shell (51) is sleeved outside the outer end of the first sleeve;

the fourth connector (6) comprises a fourth insulating shell (61) and a fourth connector conductor (60) arranged in the fourth insulating shell (61), two ends of the second conductor (30) are respectively electrically connected with the breaker moving contact and the fourth connector conductor (60), and one end of the fourth insulating shell (61) is sleeved outside the outer end of the second sleeve.

7. The novel fusion combined electrical apparatus according to claim 6, characterized in that: third insulating casing (51) are L font structure, erect the arm including third insulating casing xarm and third insulating casing, and third insulating casing xarm pot head is established in the outside of first sleeve pipe outer end, and the other end is equipped with the third connector slot and erects the arm with the third insulating casing and bend and link to each other, and outside incoming cable or generating line insert third insulating casing and erect the arm and link to each other with third connector conductor (50) electricity.

8. The novel fusion type combined electrical apparatus according to claim 6, characterized in that: and a fourth connector slot is formed in the other end of the fourth insulating shell (61), and an external power outlet cable or a bus is inserted into the fourth connector slot and is electrically connected with the third connector conductor (60).

9. The novel fusion combined electrical apparatus according to claim 1, characterized in that: and the joint of the second connector insulating shell (2-30) and the circuit breaker insulating core body (23) is filled with insulating glue, and the joint of the second connector (2-30) and the second insulating core body (31) is filled with insulating glue.

10. A substation, characterized in that it comprises the new fused combiner according to any of claims 1-9.