CN110118885A - Electrical energy measurement test connecting box, target meter replacing options and electric energy metering device - Google Patents
Electrical energy measurement test connecting box, target meter replacing options and electric energy metering device Download PDFInfo
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- CN110118885A CN110118885A CN201910568275.8A CN201910568275A CN110118885A CN 110118885 A CN110118885 A CN 110118885A CN 201910568275 A CN201910568275 A CN 201910568275A CN 110118885 A CN110118885 A CN 110118885A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
Abstract
This application discloses a kind of electrical energy measurement test connecting boxes, it include: box body and box cover, it is equipped with the multiple electric current Wiring modules connecting respectively with the first meter, the second meter and current transformer in box body, is additionally provided with the multiple voltage link modules connecting respectively with the first meter, the second meter and voltage transformer；Each voltage link module include first voltage in flakes with second voltage in flakes, the first meter connect in flakes by first voltage with voltage transformer, and the second meter passes through second voltage and connect in flakes with voltage transformer；Each electric current Wiring module include the first electric current in flakes with multiple auxiliary currents in flakes.It may be implemented using the electrical energy measurement test connecting box of the application in charged for replacement object table timing, other meters do not have electric quantity loss, and accurate measurement.Disclosed herein as well is a kind of target meter replacing options and electric energy metering devices, have above-mentioned beneficial effect.
Description
Technical field
This application involves electrical energy measurement fields, replace more particularly to a kind of electrical energy measurement test connecting box, target meter
Method and electric energy metering device.
Background technique
Electric energy metering device used at present, the mode of connection are: Secondary Circuit of Potential Transformer voltage and current mutual inductance
Device secondary loop current pass through respectively electric energy metering wiring box voltage wiring terminal and current wiring terminal access electric energy meter and
Load management terminal keeps the voltage circuit of electric energy metering wiring box, electric energy meter and load management terminal in parallel, current loop string
Connection.When on-load replaces electric energy meter or load management terminal, it is necessary to first by the voltage yoke plate of electric energy metering wiring box two
Secondary voltage circuit open circuit causes replacement electric energy meter by the electric current of electric energy metering wiring box in flakes the short circuit of secondary current circuit
When load management terminal cannot normally measure electric energy, electric energy meter can not normally measure electric energy when replacing load management terminal,
Exactly replacing either table timing need to all have a power failure progress, until replacement is completed.Meter could be measured normally after energization, lead to electric energy
Meter cannot be measured or be replaced to measurement meter decompression therebetween and meter decompression electricity cannot be measured correctly and cause to lose.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art need to solve at present
Problem.
Summary of the invention
The purpose of the application is to provide a kind of electrical energy measurement test connecting box, target meter replacing options and electrical energy measurement dress
It sets, may be implemented in charged for replacement object table timing, other meters do not have electric quantity loss, and accurate measurement.
In order to solve the above technical problems, this application provides a kind of electrical energy measurement test connecting boxes, comprising: box body and box
Lid, the box body is interior to be equipped with the multiple electric current Wiring modules connecting respectively with the first meter, the second meter and current transformer, also
Equipped with the multiple voltage link modules being connect respectively with first meter, second meter and voltage transformer；
Each voltage link module include first voltage in flakes with second voltage in flakes, first meter passes through institute
First voltage is stated to connect with the voltage transformer in flakes, second meter by the second voltage in flakes with the voltage
Mutual inductor connection；
Each electric current Wiring module include the first electric current in flakes with multiple auxiliary currents in flakes, each auxiliary is electric
For stream in flakes for controlling the short circuit of current loop of the target meter in replacement object table timing, the object table is calculated as described the
One meter and/or second meter.
Preferably, each electric current Wiring module further includes series current terminal, first meter and described second
Meter is connected by the series current terminal.
Preferably, the multiple auxiliary current include in flakes the first auxiliary current in flakes with the second auxiliary current in flakes；
The No.1 current terminal of each electric current Wiring module and No. two current terminals pass through first electric current in flakes
The first end of connection, the current transformer passes through the No.1 current terminal and No. two current terminals and first table
Meter connection, the second end that second meter passes through No. three current terminals and the current transformer of the electric current Wiring module
Connection；
First auxiliary current is set in flakes on the current terminal laterally adjacent with the No.1 current terminal, and described
Two auxiliary currents are set in flakes on the current terminal laterally adjacent with No. three current terminals.
Preferably, the series current terminal is set between the No.1 current terminal and No. three current terminals.
Preferably, the electrical energy measurement test connecting box is phase three-wire three electrical energy measurement test connecting box or three-phase and four-line electricity
It can metering experiment terminal box；
When the electrical energy measurement test connecting box is the phase three-wire three electrical energy measurement test connecting box, the electrical energy measurement
Test connecting box includes two electric current Wiring modules and three voltage link modules；
When the electrical energy measurement test connecting box is the three-phase and four-line electrical energy measurement test connecting box, the electrical energy measurement
Test connecting box includes three electric current Wiring modules and four voltage link modules.
In order to solve the above technical problems, being applied to present invention also provides a kind of target meter replacing options as appointed above
Electrical energy measurement test connecting box described in meaning one, comprising:
When object table is calculated as the first meter, by the first voltage of each voltage link module in flakes to setting aside, to disconnect
Auxiliary current corresponding with first meter in each electric current Wiring module is stirred in the three-phase voltage circuit of first meter
In flakes, so that the short circuit of current loop of first meter；
When object table is calculated as the second meter, by the second voltage of each voltage link module in flakes to setting aside, to disconnect
Auxiliary current corresponding with second meter in each electric current Wiring module is stirred in the three-phase voltage circuit of second meter
In flakes, so that the short circuit of current loop of second meter.
Preferably, the electrical energy measurement test connecting box is phase three-wire three electrical energy measurement test connecting box or three-phase and four-line electricity
It can metering experiment terminal box；
When the electrical energy measurement test connecting box is the phase three-wire three electrical energy measurement test connecting box, the electrical energy measurement
Test connecting box includes two electric current Wiring modules and three voltage link modules；
When the electrical energy measurement test connecting box is the three-phase and four-line electrical energy measurement test connecting box, the electrical energy measurement
Test connecting box includes three electric current Wiring modules and four voltage link modules.
In order to solve the above technical problems, present invention also provides a kind of electric energy metering devices, including such as any one above
The electrical energy measurement test connecting box.
This application provides a kind of electrical energy measurement test connecting boxes, comprising: box body and box cover are equipped in box body respectively with the
One meter, the second meter and current transformer connection multiple electric current Wiring modules, be additionally provided with respectively with the first meter, the second table
Meter and multiple voltage link modules of voltage transformer connection；Each voltage link module includes that first voltage is electric with second in flakes
In flakes, the first meter connect with voltage transformer in flakes by first voltage pressure, the second meter pass through second voltage in flakes with electricity
Press mutual inductor connection；Each electric current Wiring module include the first electric current in flakes with multiple auxiliary currents in flakes, each auxiliary current
In flakes for the short circuit of current loop in replacement object table timing control target meter, object table is calculated as the first meter and/or the
Two meters.
In practical applications, using the scheme of the application, in voltage link module, every phase voltage circuit is provided with muti-piece
Voltage in flakes, controls the on-off of different circuit respectively, in replacement object table timing, disconnects any voltage in flakes, does not influence other
The power supply in meter circuit, in electric current Wiring module, setting auxiliary current in flakes, guarantees only to make mesh in replacement object table timing
The short circuit of current loop for marking meter, does not influence the current loop of other meters, thus realize charged for replacement object table timing, other
Meter does not have electric quantity loss, and accurate measurement.
Present invention also provides a kind of target meter replacing options and electric energy metering device, has and above-mentioned electrical energy measurement tries
Test the identical beneficial effect of terminal box.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of electric energy test connecting box provided herein；
Fig. 2 is the structural schematic diagram of another electric energy test connecting box provided herein；
Fig. 3 a is the structural schematic diagram of another electric energy test connecting box provided herein；
Fig. 3 b is the structural schematic diagram of another electric energy test connecting box provided herein；
Fig. 3 c is the structural schematic diagram of another electric energy test connecting box provided herein；
Fig. 4 is a kind of step flow chart of target meter replacing options provided herein.
Specific embodiment
The core of the application is to provide a kind of electrical energy measurement test connecting box, target meter replacing options and electrical energy measurement dress
It sets, may be implemented in charged for replacement object table timing, other meters do not have electric quantity loss, and accurate measurement.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Fig. 1 is please referred to, Fig. 1 is a kind of structural schematic diagram of electrical energy measurement test connecting box provided herein, comprising:
Box body and box cover, box body is interior to be equipped with the multiple electricity connecting respectively with the first meter, the second meter and current transformer
Wiring module IX is flowed, the multiple voltage link modules connecting respectively with the first meter, the second meter and voltage transformer are additionally provided with
UX, X=A, B, C；
It is understood that electrical energy measurement test connecting box provided herein can be the electric energy of adaptation phase three-wire three
Metering experiment terminal box, or the electrical energy measurement test connecting box of three-phase and four-line is adapted to, when adapting to phase three-wire three, the electric energy
It should be set in the box body of metering experiment terminal box there are two electric current Wiring module IX and three voltage link module UX, adapt to three-phase four
Electric current Wiring module IX and four voltage link modules there are three should being set when line, in the box body of the electrical energy measurement test connecting box
UX。
Each voltage link module UX includes that U2, the first meter pass through first to first voltage in flakes for U1 and second voltage in flakes
U1 is connect voltage with voltage transformer in flakes, and by second voltage, U2 is connect the second meter with voltage transformer in flakes；
Specifically, the application, which passes through, improves every phase voltage connection terminal structure, in flakes original one piece of every phase voltage circuit
It changes into every phase muti-piece in flakes, connects so that every phase voltage circuit is split up into multichannel by the on-off of original one piece control loop in flakes
The on-off (installing every phase voltage secondary circuit or three circuits in flakes additional) of piece difference control loop, that is to say, that disconnect any road voltage and connect
Piece does not influence other loop voltages and powers in flakes, thus achieve the purpose that every phase voltage circuit, which is split up into multichannel, independently to be exported,
It include corresponding with A first in box body by taking the electrical energy measurement test connecting box for adapting to phase three-wire three as an example shown in referring to Fig.1
Voltage link module UA, second voltage Wiring module UB corresponding with B, tertiary voltage Wiring module UC corresponding with C, respectively
It include first voltage U1 in flakes in a voltage link module UX, U2, voltage transformer pass through first voltage to second voltage in flakes
U1 is connect with the first meter in flakes, and by second voltage, U2 is connect voltage transformer with the second meter in flakes, two in every phase
Voltage circuit is independent of each other.
Each electric current Wiring module IX includes that Ifi, each auxiliary are electric in flakes for I1 and multiple auxiliary currents in flakes for the first electric current
Stream in flakes Ifi be used for replacement object table timing control target meter short circuit of current loop, object table be calculated as the first meter and/
Or second meter.
Specifically, the application increases multiple auxiliary currents Ifi in flakes in each electric current Wiring module IX, electric current is improved
The connection type of circuit connection mode and short-circuit connection sheet, reaching on-load replacement another meter of object table timing can normally measure
The purpose of electric energy.Shown in referring to Fig.1, include and A phase by taking the electrical energy measurement test connecting box for adapting to phase three-wire three as an example, in box body
Corresponding first electric current Wiring module IA and second electric current Wiring module IC corresponding with C.Correspondingly, being fitted referring to shown in Fig. 2
Should further include in the box body of the electrical energy measurement test connecting box of three-phase and four-line third electric current Wiring module IB corresponding with B and
Fourth voltage link module UN corresponding with N.First electric current No. 1 current terminal of I1 connection and No. two current terminals in flakes,
If1 is set on the current terminal laterally adjacent with No.1 current terminal one auxiliary current in flakes, and If2 is set the second auxiliary current in flakes
In on the current terminal laterally adjacent with No. three current terminals.
Specifically, using be adapted to phase three-wire three electrical energy measurement test connecting box, the first meter as electric energy meter, the second meter
To be illustrated for load management terminal to the application, when electric energy meter and load management terminal can work normally, ginseng
According to shown in Fig. 3 a, the secondary current of current transformer output passes through in the electric current Wiring module IX of electrical energy measurement test connecting box
Current terminal is connected to the current coil of electric energy meter and load management terminal, every phase current time of electric energy meter and load management terminal
Road series connection, by taking A phase current as an example, A phase current mutual inductor secondary current is by No. 1 current terminal in the first electric current Wiring module IA
Through the first electric current, I1 flows to the electric current end of incoming cables that No. 2 current terminals flow into electric energy meter again in flakes after son, and electric current flows through electric energy meter
It is flowed out after current coil from electric energy meter leading-out terminal, then accesses the current-series connecting terminal in the first electric current Wiring module IA
A11, series current terminal A11 are set between No.1 current terminal and No. three current terminals, pass through current-series connecting terminal A11
The end of incoming cables for accessing load management terminal, after the current coil for flowing through load management terminal, from the leading-out terminal of load management terminal
Then No. 3 current terminal return current mutual inductors are passed through in outflow.It is understood that equal in electric energy meter and load management terminal
When can operate normally, If2 does not connect with other current terminals the first auxiliary current in flakes for If1 and the second auxiliary current in flakes
It connects.Equally by taking A phase as an example, voltage transformer exports secondary voltage by the voltage terminal of electrical energy measurement test connecting box again through the
U1 is connected to the potential winding terminal of electric energy meter to one voltage in flakes, while U2 is connected to load management terminal in flakes through second voltage
Potential winding terminal, electric energy meter and load management terminal run well under voltage and current effect at this time, and two meters are just
Often metering electric energy.
Specifically, referring to Fig. 3 b, when needing on-load to replace electric energy meter, first by electrical energy measurement test connecting box with
A, U1 disconnects electric energy meter three-phase voltage circuit to setting aside to the first voltage in the corresponding voltage link module UX of B, C tri- in flakes,
Since U2 is in connection status in flakes for the corresponding second voltage of A, B, C tri- at this time, so load management terminal voltage is normal.Then
By the first auxiliary current in each electric current Wiring module IX, If1 is dialled to the left in flakes, is shorted tie point on No. 1 current terminal, this
When electric energy meter current loop be in short-circuit condition, but the current loop of load management terminal is unaffected, that is to say, that load pipe
Reason terminal still is able to operate normally and measure electric energy, and electric energy meter decompression, defluidization, replaces to electric energy meter.
Correspondingly, when needing on-load to replace load management terminal, electrical energy measurement is tested first referring to shown in Fig. 3 c
U2 disconnects load management to setting aside to second voltage in terminal box in voltage link module UX corresponding with A, B, C tri- in flakes
Terminal three-phase voltage circuit, since U1 is in connection status in flakes for the corresponding first voltage of A, B, C tri- at this time, so electrical energy meter electricity
Positive pressure is normal.Then by the second auxiliary current in each electric current Wiring module IX, If2 is dialled to the right in flakes, is shorted No. 3 current terminals
Upper tie point, the current loop of load management terminal is in short-circuit condition at this time, but the current loop of electric energy meter is unaffected, also
It is to say that electric energy meter still is able to operate normally and measure electric energy, and load management terminal decompression, defluidization carry out more electric energy meter
It changes.
Further, when needing while replacing electric energy meter and load management terminal, in each voltage link module UX
First voltage U2 disconnects the three-phase voltage of electric energy meter and load management terminal simultaneously to setting aside in flakes for U1 and second voltage in flakes
Circuit, then by the first auxiliary current, If1 is dialled to the left in flakes, and by the second auxiliary current, If2 is dialled to the right in flakes, is made electric energy meter and is born
The current loop of lotus management terminal is in short-circuit condition, electric energy meter, load management terminal decompression, defluidization, but does not influence once to set
Standby operating status, can be replaced at this time.
This application provides a kind of electrical energy measurement test connecting boxes, comprising: box body and box cover are equipped in box body respectively with the
One meter, the second meter and current transformer connection multiple electric current Wiring modules, be additionally provided with respectively with the first meter, the second table
Meter and multiple voltage link modules of voltage transformer connection；Each voltage link module includes that first voltage is electric with second in flakes
In flakes, the first meter connect with voltage transformer in flakes by first voltage pressure, the second meter pass through second voltage in flakes with electricity
Press mutual inductor connection；Each electric current Wiring module include the first electric current in flakes with multiple auxiliary currents in flakes, each auxiliary current
In flakes for the short circuit of current loop in replacement object table timing control target meter, object table is calculated as the first meter and/or the
Two meters.
In practical applications, using the scheme of the application, in voltage link module, every phase voltage circuit is provided with muti-piece
Voltage in flakes, controls the on-off of different circuit respectively, in replacement object table timing, disconnects any voltage in flakes, does not influence other
The power supply in meter circuit, in electric current Wiring module, setting auxiliary current in flakes, guarantees only to make mesh in replacement object table timing
The short circuit of current loop for marking meter, does not influence the current loop of other meters, thus realize charged for replacement object table timing, other
Meter does not have electric quantity loss, and accurate measurement.
Referring to figure 4., Fig. 4 is a kind of step flow chart of target meter replacing options provided herein, comprising:
Step 1: determining target meter；
Step 2: when object table is calculated as the first meter, by the first voltage of each voltage link module in flakes to setting aside,
To disconnect the three-phase voltage circuit of the first meter, stirs auxiliary current corresponding with the first meter in each electric current Wiring module and connect
Piece, so that the short circuit of current loop of the first meter, executes step 4；
Step: 3: when object table is calculated as the second meter, by the second voltage of each voltage link module in flakes to setting aside,
To disconnect the three-phase voltage circuit of the second meter, stirs auxiliary current corresponding with the second meter in each electric current Wiring module and connect
Piece, so that the short circuit of current loop of the second meter, executes step 4；
Step 4: replacement target meter.
Embodiment as one preferred, electrical energy measurement test connecting box be phase three-wire three electrical energy measurement test connecting box or
Three-phase and four-line electrical energy measurement test connecting box；
When electrical energy measurement test connecting box is phase three-wire three electrical energy measurement test connecting box, the electrical energy measurement test connection
Box includes two electric current Wiring modules and three voltage link modules；
When electrical energy measurement test connecting box is three-phase and four-line electrical energy measurement test connecting box, the electrical energy measurement test connection
Box includes three electric current Wiring modules and four voltage link modules.
A kind of target meter replacing options provided herein have identical with above-mentioned electric energy metering device beneficial to effect
Fruit.
Above-described embodiment is please referred to for a kind of introduction of target meter replacing options provided herein, the application exists
This is repeated no more.
Correspondingly, present invention also provides a kind of electric energy metering device, the electrical energy measurement examination including any one such as above
Test terminal box.
A kind of electrical energy measurement test connecting box provided herein has identical with above-mentioned electric energy metering device beneficial
Effect.
Above-described embodiment, the application are please referred to for a kind of introduction of electrical energy measurement test connecting box provided herein
Details are not described herein.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of electrical energy measurement test connecting box characterized by comprising box body and box cover, be equipped in the box body respectively with
First meter, the second meter and current transformer connection multiple electric current Wiring modules, be additionally provided with respectively with first meter,
Second meter and multiple voltage link modules of voltage transformer connection；
Each voltage link module include first voltage in flakes with second voltage in flakes, first meter passes through described the
One voltage is connect with the voltage transformer in flakes, second meter by the second voltage in flakes with the mutual induction of voltage
Device connection；
Each electric current Wiring module include the first electric current in flakes with multiple auxiliary currents in flakes, each auxiliary current connects
Piece is used to control the short circuit of current loop of the target meter in replacement object table timing, and the object table is calculated as first table
Meter and/or second meter.
2. electrical energy measurement test connecting box according to claim 1, which is characterized in that each electric current Wiring module is also
Including series current terminal, first meter is connected with second meter by the series current terminal.
3. electrical energy measurement test connecting box according to claim 2, which is characterized in that the multiple auxiliary current wraps in flakes
Include the first auxiliary current in flakes with the second auxiliary current in flakes；
The No.1 current terminal of each electric current Wiring module and No. two current terminals are connected in flakes by first electric current,
The first end of the current transformer is connected by the No.1 current terminal and No. two current terminals and first meter
It connects, second meter is connected by No. three current terminals of the electric current Wiring module and the second end of the current transformer
It connects；
First auxiliary current is set in flakes on the current terminal laterally adjacent with the No.1 current terminal, and described second is auxiliary
Electric current is helped to be set on the current terminal laterally adjacent with No. three current terminals in flakes.
4. electrical energy measurement test connecting box according to claim 3, which is characterized in that the series current terminal is set to institute
It states between No.1 current terminal and No. three current terminals.
5. electrical energy measurement test connecting box according to any one of claims 1-4, which is characterized in that the electrical energy measurement
Test connecting box is phase three-wire three electrical energy measurement test connecting box or three-phase and four-line electrical energy measurement test connecting box；
When the electrical energy measurement test connecting box is the phase three-wire three electrical energy measurement test connecting box, electrical energy measurement test
Terminal box includes two electric current Wiring modules and three voltage link modules；
When the electrical energy measurement test connecting box is the three-phase and four-line electrical energy measurement test connecting box, electrical energy measurement test
Terminal box includes three electric current Wiring modules and four voltage link modules.
6. a kind of target meter replacing options, which is characterized in that applied to the electric energy meter as described in claim 1-5 any one
Measure test connecting box, comprising:
When object table is calculated as the first meter, by the first voltage of each voltage link module in flakes to setting aside, described in disconnecting
The three-phase voltage circuit of first meter is stirred auxiliary current corresponding with first meter in each electric current Wiring module and is connected
Piece, so that the short circuit of current loop of first meter；
When object table is calculated as the second meter, by the second voltage of each voltage link module in flakes to setting aside, described in disconnecting
The three-phase voltage circuit of second meter is stirred auxiliary current corresponding with second meter in each electric current Wiring module and is connected
Piece, so that the short circuit of current loop of second meter.
7. target meter replacing options according to claim 6, which is characterized in that the electrical energy measurement test connecting box is
Phase three-wire three electrical energy measurement test connecting box or three-phase and four-line electrical energy measurement test connecting box；
When the electrical energy measurement test connecting box is the phase three-wire three electrical energy measurement test connecting box, electrical energy measurement test
Terminal box includes two electric current Wiring modules and three voltage link modules；
When the electrical energy measurement test connecting box is the three-phase and four-line electrical energy measurement test connecting box, electrical energy measurement test
Terminal box includes three electric current Wiring modules and four voltage link modules.
8. a kind of electric energy metering device, which is characterized in that including the electrical energy measurement test as described in claim 1-5 any one
Terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568275.8A CN110118885A (en) | 2019-06-27 | 2019-06-27 | Electrical energy measurement test connecting box, target meter replacing options and electric energy metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568275.8A CN110118885A (en) | 2019-06-27 | 2019-06-27 | Electrical energy measurement test connecting box, target meter replacing options and electric energy metering device |
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| CN110118885A true CN110118885A (en) | 2019-08-13 |
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| CN201910568275.8A Pending CN110118885A (en) | 2019-06-27 | 2019-06-27 | Electrical energy measurement test connecting box, target meter replacing options and electric energy metering device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110726859A (en) * | 2019-10-31 | 2020-01-24 | 国网山东省电力公司济宁供电公司 | Switching device for continuously metering during live replacement of electric energy meter and electric energy meter replacement method |
| CN112924732A (en) * | 2021-01-29 | 2021-06-08 | 广东电网有限责任公司 | Metering device external member and metering system |
| CN113721183A (en) * | 2021-08-31 | 2021-11-30 | 国网重庆市电力公司营销服务中心 | Modular functional plug suitable for plug-in type test junction box and use method |
| CN114280342A (en) * | 2021-12-23 | 2022-04-05 | 广东电网有限责任公司 | Test junction box and method for replacing electric energy metering device |
| CN115754397A (en) * | 2022-10-31 | 2023-03-07 | 云南电网有限责任公司昆明供电局 | Multifunctional testing system and method for seamlessly connecting high-precision calculation of electric quantity |
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