CN208921737U - A kind of metering cabinet - Google Patents

Abstract

This application discloses a kind of metering cabinets, for solving the problems, such as that outdoor requirement is not achieved in the antifouling work ability of mutual inductor element used in metering cabinet in the prior art.The metering cabinet includes: combined instrument transformer；The combined instrument transformer is set to the inside of the metering cabinet；The combined instrument transformer includes: insulating protector, multiple current transformers and multiple voltage transformers；Mutually insulated between the multiple current transformer is electrically connected between the multiple voltage transformer, and the insulating protector is wrapped in the multiple current transformer and the multiple voltage transformer；The insulating protector is for preventing the multiple current transformer and the multiple voltage transformer from the case where pollution flashover occur.

Description

A kind of metering cabinet

Technical field

This application involves the technical fields of power equipment, are related to a kind of metering cabinet.

Background technique

The high pressure measurement unit of the open air 10kV console mode batch meter and 10kV preassembled transformer station is adopted mostly in industry at present With 10kV box type fixed alternating current closed metal switch cabinet scheme.And the meter of 10kV box type fixed alternating current closed metal switch cabinet Cabinet unit scheme is measured, the current transformer for metering and voltage transformer of use are all made of indoor type element.In coastal area In operation, since salt content is higher in wet weather, air, pollution flashover often occurs in metering cabinet, is used to cause metering Mulual inductor malfunction, and then cause the accidents such as line tripping, influence distribution safe and reliable operation.Therefore, it exists in the prior art The problem of outdoor requirement is not achieved in the antifouling work ability of mutual inductor element used in metering cabinet.

Utility model content

In view of this, the application provides a kind of metering cabinet, for solving mutual inductor used in metering cabinet in the prior art The problem of outdoor requirement is not achieved in the antifouling work ability of element.

This application provides a kind of metering cabinet, the metering cabinet includes: combined instrument transformer；The combined instrument transformer It is set to the inside of the metering cabinet；The combined instrument transformer includes: insulating protector, multiple current transformers and multiple electricity Press mutual inductor；Mutually insulated between the multiple current transformer is electrically connected between the multiple voltage transformer, it is described absolutely Edge protective is wrapped in the multiple current transformer and the multiple voltage transformer；The insulating protector is for preventing institute It states multiple current transformers and the case where pollution flashover occurs in the multiple voltage transformer.

Optionally, in the embodiment of the present application, the multiple current transformer includes: the first current transformer and the second electricity Current transformer；First current transformer and the second current transformer mutually insulated, the insulating protector are wrapped in First current transformer and second current transformer.

Optionally, in the embodiment of the present application, the multiple voltage transformer includes: first voltage mutual inductor and the second electricity Press mutual inductor；The first voltage mutual inductor and the second voltage mutual inductor are electrically connected, and the insulating protector is wrapped in The first voltage mutual inductor and the second voltage mutual inductor.

Optionally, in the embodiment of the present application, the metering cabinet includes: multiple plates and multiple side plates；It is the multiple flat Plate includes: the first plate and the second plate；First plate connects with one end of each side plate in the multiple side plate respectively It connects, second plate is connect with one end far from first plate of each side plate in the multiple side plate respectively, institute It states the first plate, second plate and the multiple side plate and surrounds the space for accommodating the combined instrument transformer jointly.

Optionally, in the embodiment of the present application, the metering cabinet further includes cabinet door；The length and width of the cabinet door and institute The side plate stated in multiple side plates is identical, and first plate, second plate, the cabinet door and the multiple side plate are total With the space for surrounding a receiving combined instrument transformer.

Optionally, in the embodiment of the present application, the multiple side plate includes: the first side plate, the second side plate and third side plate； First plate connects with one end of each side plate of first side plate, second side plate and the third side plate respectively It connects, second plate is separate with each side plate of first side plate, second side plate and the third side plate respectively One end of first plate connects, and the cabinet door, first side plate, second side plate and the third side plate successively lead to Side is crossed to be fixedly connected, the cabinet door is flexibly connected with the third side plate by side, first plate, second plate, It is mutual that the cabinet door, first side plate, second side plate and the third side plate surround the receiving combined type jointly The space of sensor.

Optionally, in the embodiment of the present application, first side plate is identical with the shapes and sizes of the third side plate, institute The length and width for stating cabinet door is identical as second side plate.

Optionally, in the embodiment of the present application, the metering cabinet further includes blocking device；The blocking device is set to institute Side of the cabinet door far from the space is stated, the blocking device is for being latched the cabinet door.

Optionally, in the embodiment of the present application, the metering cabinet further includes incoming line cabinet；The incoming line cabinet and the locking fill Set connection；The incoming line cabinet is for introducing power supply, when the incoming line cabinet introduces high voltage power supply, the institute adjacent with the incoming line cabinet It states blocking device while being powered.

Optionally, in the embodiment of the present application, the insulating protector is epoxy resins insulation protective.

A kind of metering cabinet provided by the present application, by using combined instrument transformer, i.e. outdoor dry-type combined mutual inductor, To improve the antifouling work ability of mutual inductor element used in metering cabinet.Due to outdoor dry-type combined mutual inductor have it is higher Degree of protection, the spacing of live part is also big compared with indoor type element, along with metering cabinet use the fixed exchange of 10kV box Metal closed switch cabinet, which greatly improves the antifouling work abilities of metering cabinet.In this way to efficiently solve The problem of outdoor requirement is not achieved in the antifouling work ability of mutual inductor element used in metering cabinet in the prior art.

To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.

Detailed description of the invention

Illustrate the technical solutions in the embodiments of the present application or in the prior art in order to clearer, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 shows metering cabinet diagrammatic cross-section provided by the embodiments of the present application；

Fig. 2 shows the first viewing angle constructions of combined instrument transformer top views provided by the embodiments of the present application；

Fig. 3 shows the second viewing angle constructions of combined instrument transformer top view provided by the embodiments of the present application；

Fig. 4 shows the first viewing angle constructions of metering cabinet schematic diagram provided by the embodiments of the present application；

Fig. 5 shows the second viewing angle constructions of metering cabinet schematic diagram provided by the embodiments of the present application；

Fig. 6 shows metering cabinet third provided by the embodiments of the present application visual angle schematic top plan view；

Fig. 7 shows the 4th viewing angle constructions schematic diagram of metering cabinet provided by the embodiments of the present application.

Icon: 101- metering cabinet；100- combined instrument transformer；110- insulating protector；130- current transformer；131- One current transformer；The second current transformer of 133-；150- voltage transformer；151- first voltage mutual inductor；The second electricity of 153- Press mutual inductor；300- plate；The first plate of 310-；The second plate of 330-；500- side plate；The first side plate of 510-；530- second side Plate；550- third side plate；700- cabinet door；710- blocking device.

Specific embodiment

Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Ground description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Usually exist The component of the embodiment of the present application described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause This, is not intended to limit claimed the application's to the detailed description of the embodiments herein provided in the accompanying drawings below Range, but it is merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art are not being done Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present application, it should be noted that the instruction such as term " on ", "lower", "left", "right", "inner", "outside" Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the product using when the side usually put Position or positional relationship are merely for convenience of description the application and simplify description, rather than the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.

In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary It is connected, can be the connection inside two elements.

In the description of the present application, it is also necessary to explanation, herein, such as first and second or the like relationship art Language is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying this There are any actual relationship or orders between a little entities or operation.The terms such as term "horizontal", "vertical", " pendency " It is not offered as requiring component abswolute level or pendency, but can be slightly tilted.As "horizontal" only refers to that its direction is opposite " perpendicular It is more horizontal for directly ", it is not to indicate that the structure is had to fully horizontally, but can be slightly tilted.Term " includes ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion so that include a series of elements process, Method, article or equipment not only include those elements, but also including other elements that are not explicitly listed, or are also wrapped It includes as elements inherent to such a process, method, article, or device.In the absence of more restrictions, by sentence " including One ... " limit element, it is not excluded that there is also another in the process, method, article or apparatus that includes the element Outer identical element.For the ordinary skill in the art, above-mentioned term can be understood in this application with concrete condition Concrete meaning.

With reference to the accompanying drawing, it elaborates to some embodiments of the application.In the absence of conflict, following Feature in embodiment and embodiment can be combined with each other.

Currently, the high pressure measurement unit of the open air 10kV console mode batch meter and 10kV preassembled transformer station mostly uses greatly 10kV Box type fixed alternating current closed metal switch cabinet scheme.And the metering cabinet list of 10kV box type fixed alternating current closed metal switch cabinet Element plan, the current transformer for metering and voltage transformer of use are all made of indoor type element.In the operation of coastal area, Since salt content is higher in wet weather, air, pollution flashover often occurs in metering cabinet, to cause the event of metering mutual inductor Barrier, and then cause the accidents such as line tripping, influence distribution safe and reliable operation.

First embodiment

Referring to Figure 1, Fig. 1 shows metering cabinet diagrammatic cross-section provided by the embodiments of the present application.This application provides A kind of metering cabinet 101, metering cabinet 101 include: combined instrument transformer 100；Combined instrument transformer 100 is set to metering cabinet 101 It is internal；

Fig. 2 is referred to, Fig. 2 shows the first viewing angle constructions of combined instrument transformer top views provided by the embodiments of the present application. Combined instrument transformer 100 includes: insulating protector 110, multiple current transformers 130 and multiple voltage transformers 150；Multiple electricity Mutually insulated between current transformer 130 is electrically connected between multiple voltage transformers 150, and insulating protector 110 is wrapped in multiple Current transformer 130 and multiple voltage transformers 150；Insulating protector 110 is for preventing multiple current transformers 130 and multiple There is the case where pollution flashover in voltage transformer 150.

Wherein, it should be noted that, pollution flashover phenomenon refers to the dunghill of insulation of electrical installation surface attachment in wet condition Under insulating surface formed one layer of conductive film, the strong electric discharge phenomena occurred under electric power field action.

Wherein it is possible to be appreciated that, metering cabinet 101 includes: combined instrument transformer 100；Combined instrument transformer 100 is set to The inside of metering cabinet 101；Combined instrument transformer 100 includes: insulating protector 110, multiple current transformers 130 and multiple voltages Mutual inductor 150；Mutually insulated between multiple current transformers 130 is electrically connected between multiple voltage transformers 150, and insulation is protected Watch box 110 is wrapped in multiple current transformers 130 and multiple voltage transformers 150；Insulating protector 110 is for preventing multiple electricity There is the case where pollution flashover in current transformer 130 and multiple voltage transformers 150.By using combined instrument transformer 100, i.e. outdoor type Dry-type combined mutual inductor 100,100 exterior side of combined instrument transformer is improved using insulating protector 110 to be made in metering cabinet 101 The antifouling work ability of mutual inductor element.Since outdoor dry-type combined mutual inductor 100 has higher degree of protection, band The spacing of electric part is also big compared with indoor type element, along with metering cabinet 101 AC metal closed is opened using 10kV box is fixed Cabinet is closed, which greatly improves the antifouling work abilities of metering cabinet 101.

Fig. 3 is referred to, Fig. 3 shows the second viewing angle constructions of combined instrument transformer top view provided by the embodiments of the present application. Optionally, in the embodiment of the present application, multiple current transformers 130 include: the first current transformer 131 and the second Current Mutual Inductance Device 133；133 mutually insulated of first current transformer 131 and the second current transformer, insulating protector 110 are wrapped in the first electricity Current transformer 131 and the second current transformer 133.

Wherein, it should be noted that, multiple current transformers 130 include: that the first current transformer 131 and the second electric current are mutual Sensor 133；133 mutually insulated of first current transformer 131 and the second current transformer, insulating protector 110 are wrapped in first Current transformer 131 and the second current transformer 133.First current transformer 131 and second is wrapped up using insulating protector 110 Current transformer 133 improves the antifouling work ability of mutual inductor element used in metering cabinet 101 in this way, thus Greatly improve the antifouling work ability of metering cabinet 101.

Fig. 3 is referred to, optionally, in the embodiment of the present application, multiple voltage transformers 150 include: first voltage mutual inductance Device 151 and second voltage mutual inductor 153；First voltage mutual inductor 151 and second voltage mutual inductor 153 are electrically connected, and insulation is protected Watch box 110 is wrapped in first voltage mutual inductor 151 and second voltage mutual inductor 153.

Wherein, it should be noted that, multiple voltage transformers 150 include: that first voltage mutual inductor 151 and second voltage are mutual Sensor 153；First voltage mutual inductor 151 and second voltage mutual inductor 153 are electrically connected, and insulating protector 110 is wrapped in first Voltage transformer 151 and second voltage mutual inductor 153.First voltage mutual inductor 151 and second is wrapped up using insulating protector 110 Voltage transformer 153 improves the antifouling work ability of mutual inductor element used in metering cabinet 101 in this way, thus Greatly improve the antifouling work ability of metering cabinet 101.

Fig. 4 is referred to, Fig. 4 shows the first viewing angle constructions of metering cabinet schematic diagram provided by the embodiments of the present application.Optionally, In the embodiment of the present application, metering cabinet 101 includes: multiple plates 300 and multiple side plates 500；Multiple plates 300 include: first Plate 310 and the second plate 330；First plate 310 is connect with one end of each side plate 500 in multiple side plates 500 respectively, the Two plates 330 are connect with one end far from the first plate 310 of each side plate 500 in multiple side plates 500 respectively, the first plate 310, the second plate 330 and multiple side plates 500 surround the space of a receiving combined instrument transformer 100 jointly.

Wherein, it should be noted that, metering cabinet 101 includes: multiple plates 300 and multiple side plates 500；Multiple plates 300 It include: the first plate 310 and the second plate 330；First plate 310 respectively with each side plate 500 in multiple side plates 500 one End connection, the second plate 330 connect with one end far from the first plate 310 of each side plate 500 in multiple side plates 500 respectively It connects, the first plate 310, the second plate 330 and multiple side plates 500 surround the space of a receiving combined instrument transformer 100 jointly. Surround the space of a receiving combined instrument transformer 100, this space phase jointly using multiple plates 300 and multiple side plates 500 To closing, dust or dust can be prevented to intrude into multiple plates 300 and multiple side plates from exterior space to a certain extent 500 surround the space of a receiving combined instrument transformer 100 jointly, in this way to greatly improve metering cabinet 101 antifouling work ability.

Fig. 5 is referred to, Fig. 5 shows the second viewing angle constructions of metering cabinet schematic diagram provided by the embodiments of the present application.Optionally, In the embodiment of the present application, metering cabinet 101 further includes cabinet door 700；In the length and width of cabinet door 700 and multiple side plates 500 One side plate 500 is identical, and the first plate 310, the second plate 330, cabinet door 700 and multiple side plates 500 surround a receiving jointly The space of combined instrument transformer 100.

Wherein, it should be noted that, metering cabinet 101 further includes cabinet door 700；The length and width of cabinet door 700 and multiple sides A side plate 500 in plate 500 is identical, and the first plate 310, the second plate 330, cabinet door 700 and multiple side plates 500 surround jointly The space of one receiving combined instrument transformer 100.The combined type that metering cabinet 101 stores the inside by the way of cabinet door 700 is mutual Sensor 100, it is more convenient that this not only makes metering cabinet 101 store combined instrument transformer 100, and relative to being not provided with cabinet door In the case where 700, the antifouling work ability of metering cabinet 101 is c correspondingly increased.

Fig. 6 is referred to, Fig. 6 shows metering cabinet third provided by the embodiments of the present application visual angle schematic top plan view.Optionally, In the embodiment of the present application, multiple side plates 500 include: the first side plate 510, the second side plate 530 and third side plate 550；First is flat Plate 310 is connect with one end of each side plate 500 of the first side plate 510, the second side plate 530 and third side plate 550 respectively, and second is flat Plate 330 is respectively with each side plate 500 of the first side plate 510, the second side plate 530 and third side plate 550 far from the first plate 310 One end connection, cabinet door 700, the first side plate 510, the second side plate 530 pass sequentially through side with third side plate 550 and be fixedly connected, cabinet Door 700 is flexibly connected with third side plate 550 by side, the first plate 310, the second plate 330, cabinet door 700, the first side plate 510, Second side plate 530 and third side plate 550 surround the space of a receiving combined instrument transformer 100 jointly.

Wherein, it should be noted that, multiple side plates 500 include: the first side plate 510, the second side plate 530 and third side plate 550；First plate 310 one end with each side plate 500 of the first side plate 510, the second side plate 530 and third side plate 550 respectively Connection, the second plate 330 are separate with each side plate 500 of the first side plate 510, the second side plate 530 and third side plate 550 respectively One end of first plate 310 connects, and cabinet door 700, the first side plate 510, the second side plate 530 and third side plate 550 pass sequentially through side Be fixedly connected, cabinet door 700 is flexibly connected with third side plate 550 by side, the first plate 310, the second plate 330, cabinet door 700, First side plate 510, the second side plate 530 and third side plate 550 surround the space of a receiving combined instrument transformer 100 jointly.Meter Amount cabinet 101 is stored in such a way that cabinet door 700 is used cooperatively with the first side plate 510, the second side plate 530 and third side plate 550 The combined instrument transformer 100 of the inside, this not only makes metering cabinet 101 store combined instrument transformer 100 more conveniently, Er Qiexiang In the case where being not provided with cabinet door 700, the antifouling work ability of metering cabinet 101 is c correspondingly increased.

Fig. 6 is referred to, optionally, in the embodiment of the present application, the shape of the first side plate 510 and third side plate 550 and big Small identical, the length and width of cabinet door 700 is identical as the second side plate 530.

Wherein, it should be noted that, the first side plate 510 is identical with the shapes and sizes of third side plate 550, cabinet door 700 Length and width is identical as the second side plate 530.Metering cabinet 101 is using cabinet door 700 and the first side plate 510, the second side plate 530 and the The mode that three side plates 550 are used cooperatively store the inside combined instrument transformer 100, this not only makes 101 storage group of metering cabinet Combined mutual inductor 100 is more convenient, and relative to cabinet door 700 is not provided in the case where, c correspondingly increase metering cabinet 101 Antifouling work ability.

Fig. 7 is referred to, Fig. 7 shows the 4th viewing angle constructions schematic diagram of metering cabinet provided by the embodiments of the present application.Optionally, In the embodiment of the present application, metering cabinet 101 further includes blocking device 710；Blocking device 710 is set to cabinet door 700 far from space Side, blocking device 710 is for being latched cabinet door 700.

Wherein, it should be noted that, metering cabinet 101 further includes blocking device 710；Blocking device 710 is set to cabinet door 700 Side far from space, blocking device 710 is for being latched cabinet door 700.Since blocking device can be latched the cabinet door of metering cabinet, energy It is enough effectively prevented from user and is strayed into metering cabinet electrification interval, be strayed into metering cabinet electrification interval to reach and be effectively prevented from user Effect.Metering cabinet 101 stores the combined type mutual inductance of the inside in such a way that cabinet door 700 and blocking device 710 are used cooperatively Device 100, this not only makes metering cabinet 101 store more the safety of combined instrument transformer 100, and fills relative to locking is not provided with In the case where setting 710, the antifouling work ability of metering cabinet 101 is c correspondingly increased.

Optionally, in the embodiment of the present application, metering cabinet 101 further includes incoming line cabinet；Incoming line cabinet and blocking device 710 connect It connects；Incoming line cabinet is for introducing power supply, and when incoming line cabinet introduces high voltage power supply, the blocking device 710 adjacent with incoming line cabinet leads to simultaneously Electricity.

Wherein, it should be noted that, metering cabinet 101 further includes incoming line cabinet；Incoming line cabinet is connect with blocking device 710；Inlet wire Cabinet is for introducing power supply, and when incoming line cabinet introduces high voltage power supply, the blocking device 710 adjacent with incoming line cabinet is powered simultaneously.It should be into Line cabinet is usually to introduce 10kV power supply from the external switchgear for introducing power supply from supply network, be a kind of 10KV incoming line cabinet, type Number be XGN15-12, incoming line cabinet number be AHI, scheduling number be 201, cabinet is 500 millimeters wide.Wherein, the model of on-load switch and rule Lattice are SFG-12/630, are that one kind can close and cut off in normal operation load current, exciting current, charging current With the device for switching of capacitor group electric current.By the way that incoming line cabinet to be connect with blocking device, when incoming line cabinet introduces height from supply network When voltage source, the blocking device being connected with the incoming line cabinet is powered simultaneously, so as to execute lock operation rapidly, locks metering cabinet Cabinet door.

Optionally, in the embodiment of the present application, insulating protector 110 is epoxy resins insulation protective 110.

Wherein, it should be noted that, insulating protector 110 is epoxy resins insulation protective 110.Insulating protector 110 It is made of epoxide resin material, and insulating protector 110 is made of casting under vacuum conditions.Come in this way The antifouling work ability for improving mutual inductor element used in metering cabinet 101, to greatly improve the antifouling work of metering cabinet 101 Ability.

A kind of metering cabinet provided by the present application, by using combined instrument transformer, i.e. outdoor dry-type combined mutual inductor, To improve the antifouling work ability of mutual inductor element used in metering cabinet.Due to outdoor dry-type combined mutual inductor have it is higher Degree of protection, the spacing of live part is also big compared with indoor type element, along with metering cabinet use the fixed exchange of 10kV box Metal closed switch cabinet, which greatly improves the antifouling work abilities of metering cabinet.In this way to efficiently solve The problem of outdoor requirement is not achieved in the antifouling work ability of mutual inductor element used in metering cabinet in the prior art.

The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (10)

1. a kind of metering cabinet, which is characterized in that the metering cabinet includes: combined instrument transformer；The combined instrument transformer setting In the inside of the metering cabinet；

The combined instrument transformer includes: insulating protector, multiple current transformers and multiple voltage transformers；The multiple electricity Mutually insulated between current transformer is electrically connected between the multiple voltage transformer, and the insulating protector is wrapped in described Multiple current transformers and the multiple voltage transformer；

The insulating protector is for preventing the multiple current transformer and the multiple voltage transformer from the feelings of pollution flashover occur Condition.

2. metering cabinet as described in claim 1, which is characterized in that the multiple current transformer includes: the first Current Mutual Inductance Device and the second current transformer；First current transformer and the second current transformer mutually insulated, the insulation are protected Watch box is wrapped in first current transformer and second current transformer.

3. metering cabinet as described in claim 1, which is characterized in that the multiple voltage transformer includes: first voltage mutual inductance Device and second voltage mutual inductor；The first voltage mutual inductor and the second voltage mutual inductor are electrically connected, and the insulation is protected Watch box is wrapped in the first voltage mutual inductor and the second voltage mutual inductor.

4. metering cabinet as described in claim 1, which is characterized in that the metering cabinet includes: multiple plates and multiple side plates；Institute Stating multiple plates includes: the first plate and the second plate；First plate respectively with each side plate in the multiple side plate One end connection, second plate one end with each side plate in the multiple side plate far from first plate respectively Connection, first plate, second plate and the multiple side plate surround one jointly and accommodate the combined instrument transformer Space.

5. metering cabinet as claimed in claim 4, which is characterized in that the metering cabinet further includes cabinet door；The length of the cabinet door It is identical as a side plate in the multiple side plate with width, first plate, second plate, the cabinet door and described Multiple side plates surround the space for accommodating the combined instrument transformer jointly.

6. metering cabinet as claimed in claim 5, which is characterized in that the multiple side plate include: the first side plate, the second side plate and Third side plate；First plate each side plate with first side plate, second side plate and the third side plate respectively One end connection, second plate each side with first side plate, second side plate and the third side plate respectively One end far from first plate of plate connects, the cabinet door, first side plate, second side plate and the third side Plate passes sequentially through side and is fixedly connected, and the cabinet door is flexibly connected with the third side plate by side, first plate, described Two plates, the cabinet door, first side plate, second side plate and the third side plate surround one jointly and accommodate described group The space of combined mutual inductor.

7. metering cabinet as claimed in claim 6, which is characterized in that the shape of first side plate and the third side plate and big Small identical, the length and width of the cabinet door is identical as second side plate.

8. metering cabinet as claimed in claim 6, which is characterized in that the metering cabinet further includes blocking device；The locking dress It installs and is placed in side of the cabinet door far from the space, the blocking device is for being latched the cabinet door.

9. metering cabinet as claimed in claim 8, which is characterized in that the metering cabinet further includes incoming line cabinet；The incoming line cabinet with The blocking device connection；The incoming line cabinet is for introducing power supply, when the incoming line cabinet introduces high voltage power supply, with the inlet wire The adjacent blocking device of cabinet is powered simultaneously.

10. metering cabinet as described in claim 1, which is characterized in that the insulating protector is epoxy resins insulation protective.