CN110196347B - Electric energy metering combined wiring terminal strip - Google Patents
Electric energy metering combined wiring terminal strip Download PDFInfo
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- CN110196347B CN110196347B CN201910444461.0A CN201910444461A CN110196347B CN 110196347 B CN110196347 B CN 110196347B CN 201910444461 A CN201910444461 A CN 201910444461A CN 110196347 B CN110196347 B CN 110196347B
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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
Abstract
The invention provides an electric energy metering combined wiring terminal strip which comprises a plurality of current wiring areas and a voltage wiring area, wherein each current wiring area comprises three current connecting sheets, a plurality of current input terminals and current output terminals; the current wiring area is further provided with a jumper device, the jumper device is electrically connected with the two current connecting sheets respectively, and the jumper device can selectively electrically connect or disconnect the two current connecting sheets. The invention combines the unit field tester for convenient and reliable wiring through the jumper device and the polygonal jacks.
Description
Technical Field
The invention relates to the field of electric energy metering of substations, in particular to an electric energy metering combined wiring terminal strip.
Background
The electric energy metering combined wiring terminal block is a connecting device which is matched with an electric energy metering device secondary circuit of an analog input merging unit (hereinafter called merging unit) local convergence cabinet of a transformer substation, leads a secondary wire led out by a mutual inductor to the analog input merging unit, is generally rectangular and is mainly green or black. The electric energy metering combined connecting terminal strip is connected with devices such as a voltage transformer, a circuit transformer and an analog input merging unit through series-parallel connection of secondary lines of the transformers, so that secondary circuits of the current transformer and the voltage transformer can be conveniently connected to a merging unit field tester under the electrified condition, and real load detection can be conveniently carried out on sampling errors of the analog input merging unit. The electric energy metering combined terminal block is a forced special device for preventing secondary short circuit of a voltage transformer, secondary open circuit of a phase line and the like. The electric energy metering combined wiring terminal strip ensures the safety of field operation personnel and the normal operation of equipment, and can check whether the electric energy metering wiring is correct or not.
The existing electric energy metering combined junction box has the following problems: (1) the test wire access port is not designed, when the analog input merging unit detects the field error, the voltage and current signal wires need to be fixed on the junction box in a mode of crocodile clips or fastening screws, the voltage and current signal wires are easy to be stressed and slide, and the voltage and current signal wires are complex to operate, so that the working efficiency of the field test is influenced, and the potential safety hazard is increased; (2) the existing junction box is large in size and cannot be installed and used in a densely arranged local control cubicle.
Disclosure of Invention
In view of this, the invention provides an electric energy metering combined terminal block which is convenient and reliable in test wiring and compact in structure.
The technical scheme of the invention is realized as follows: an electric energy metering combined wiring terminal block comprises a plurality of current wiring areas (1) and voltage wiring areas (3), wherein the voltage wiring areas (3) and the current wiring areas (1) are arranged at intervals; the current wiring area (1) comprises three current connecting pieces (11), a plurality of current input terminals (13) and current output terminals (14), the current wiring area (1) is provided with three through first cavities (12), the current connecting pieces (11) are arranged in the first cavities (12) and are insulated from each other, one ends of the current connecting pieces (11) close to the phase lines are provided with the current input terminals (13), one ends of the current connecting pieces (11) close to the analog quantity input merging unit are provided with the current output terminals (14), and the current input terminals (13) and the current output terminals (14) are electrically connected with the current connecting pieces (11); each voltage wiring area (3) is electrically connected with the phase line and the analog quantity input merging unit respectively; the current wiring area (1) is further provided with a jumper device (2), the jumper device (2) is electrically connected with the two current connecting pieces (11) respectively, and the jumper device (2) can selectively electrically connect or disconnect the two current connecting pieces (11).
On the basis of the technical scheme, preferably, the jumper device (2) comprises a first connecting end (21), a second connecting end (22) and a short connecting sheet (23), the current wiring area (1) is further provided with a first through hole (15) and a second through hole (16), and the first through hole (15) and the second through hole (16) are respectively communicated with different first cavities (12); the first connecting end (21) extends into the first through hole (15) and is electrically connected with the current connecting sheet (11) in the first cavity (12); the second connecting end (22) extends into the second through hole (16) and is electrically connected with the current connecting sheet (11) in the first cavity (12); one end of the short connecting sheet (23) is rotatably connected with the first connecting end (21), and the other end of the short connecting sheet (23) is detachably connected with the second connecting end (22).
Further preferably, the jumper device (2) further comprises a limiting unit (25), and the limiting unit (25) is arranged on the surface of the current wiring area (1) and is far away from the second connecting end (22); the short connecting piece (23) is provided with a clamping groove (231), and the clamping groove (231) is selectively clamped on the second connecting end (22) or the limiting unit (25).
Further preferably, the jumper device (2) further comprises a tension spring (24), the tension spring (24) is arranged on the first connecting end (21) in a surrounding mode, one end of the tension spring (24) is fixedly connected with the first connecting end (21), and the other end of the tension spring (24) is fixedly connected with the inner surface of the first through hole (15).
Still further preferably, the limiting unit (25) comprises a first stop (251) and a second stop (252), the first stop (251) and the second stop (252) extend outwards perpendicular to the surface of the current connection region (1); the side face of the first block (251) close to the second connecting end (22) is propped against the side face of the short connecting piece (23) far away from the second connecting end (22); the shape of the second stop block (252) is matched with that of the clamping groove (231).
On the basis of the technical scheme, it is further preferable that the voltage wiring area (3) comprises a voltage connecting sheet (31), a voltage input terminal (33) and a voltage output terminal (34), the voltage wiring area (3) is provided with a through second cavity (32), and the voltage connecting sheet (31) is arranged in the second cavity (32); one end of the voltage wiring area (3) close to the phase line is provided with a voltage input terminal (33), one end of the voltage wiring area (3) close to the analog quantity input merging unit is provided with a voltage output terminal (34), and the voltage input terminal (33) and the voltage output terminal (34) are both electrically connected with the voltage connecting sheet (31).
Preferably, the current input terminal (13) and the current output terminal (14) both comprise a test current wiring terminal (17), the current wiring region (1) is provided with a plurality of third through holes (4), the third through holes (4) are communicated with the first cavity (12), and the test current wiring terminal (17) penetrates through the third through holes (4) to be electrically connected with the current connecting sheet (11); the voltage input terminal (33) and the voltage output terminal (34) both comprise a test voltage connection terminal (35); a plurality of fourth through holes (5) are formed in the voltage wiring area (3), and the fourth through holes (5) are communicated with the second cavity (32); the test voltage wiring terminal (35) penetrates through the fourth through hole (5) to be electrically connected with the voltage connecting sheet (31).
Still further preferably, a polygonal insertion hole (6) is formed in the test current wiring terminal (17), and the polygonal insertion hole (6) is formed in an end face, away from the current wiring region (1), of the test current wiring terminal (17) and extends in the axial direction of the test current wiring terminal (17).
It is further preferred that a polygonal socket (6) is provided on the test voltage terminal (35), and the polygonal socket (6) is provided on an end face of the test voltage terminal (35) remote from the voltage terminal area (3) and extends in an axial direction of the test voltage terminal (35).
Compared with the prior art, the combined wiring terminal block for electric energy metering provided by the invention has the following beneficial effects:
(1) the rotatable jumper wire device is used for replacing a short-circuit connecting piece, so that the test equipment can be conveniently and quickly accessed;
(2) the jumper device can switch the position between the second connecting end and the limiting unit, so that the short circuit phenomenon caused by the connection of the short connecting plate and other assemblies can be avoided;
(3) the test current wiring terminal and the test voltage wiring terminal are both provided with polygonal jacks, so that crocodile clip wiring can be replaced, the test wire terminal can be conveniently inserted, the contact area between the test wire terminal and the test wire terminal is increased, and the test wire is not easy to fall off;
(4) the polygonal jack can be used as a special socket for test equipment, is easy to distinguish and is not easy to be inserted wrongly, and can play a certain fool-proof role.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic wiring diagram of an electric energy metering combined terminal block according to the present invention;
fig. 2 is a front view of an electric energy metering combined terminal block according to the present invention;
fig. 3 is a top view of an electric energy metering combined terminal block according to the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is a right side view of an electrical energy metering combination terminal block of the present invention;
fig. 6 is a wiring diagram of a connection state of an electric energy metering combined terminal block and a merging unit field tester of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention.
As shown in fig. 2 in combination with fig. 1, 3 and 4, the present invention provides an electric energy metering combined terminal block, which includes a plurality of current connection areas 1, a jumper device 2 and a plurality of voltage connection areas 3, wherein the voltage connection areas 3 are spaced from the current connection areas 1. The current wiring area 1 comprises three current connecting sheets 11, a plurality of current input terminals 13 and current output terminals 14, the current wiring area 1 is provided with three through first cavities 12, the current connecting sheets 11 are all arranged in the first cavities 12 and are mutually insulated, one end of each current connecting sheet 11, which is close to a phase line, is provided with a current input terminal 13, one end of each current connecting sheet 11, which is close to an analog quantity input merging unit, is provided with a current output terminal 14, and the current input terminals 13 and the current output terminals 14 are electrically connected with the current connecting sheets 11; each voltage wiring area 3 is electrically connected with the phase line and the analog input merging unit respectively. The current wiring area 1 is further provided with a jumper device 2, the jumper device 2 is electrically connected with the two current connection pieces 11 respectively, and the jumper device 2 can selectively electrically connect or disconnect the two current connection pieces 11. As can be seen, the voltage connection 3 is used to connect the phase lines in parallel and to obtain the phase voltages, and to input the phase voltages into the merging unit. The current wiring area 1 is used for obtaining phase current from phase lines and inputting the phase current into the merging unit, wherein the phase lines are arranged in the same phase. The jumper device 2 can switch states, conduct two current connection pieces 11 which are not communicated with each other, and can also disconnect the two current connection pieces 11 according to needs. The current input terminals 13, the current output terminals 14 and the voltage connection area 3 can also be used for connecting a merging unit field tester.
As shown in fig. 2 and fig. 4, the jumper device 2 includes a first connection end 21, a second connection end 22 and a short connection piece 23, the current connection area 1 is further provided with a first through hole 15 and a second through hole 16, and the first through hole 15 and the second through hole 16 are respectively communicated with different first cavities 12; the first connection end 21 extends into the first through hole 15 and is electrically connected with the current connection sheet 11 in the first cavity 12; the second connecting end 22 extends into the second through hole 16 and is electrically connected with the current connecting sheet 11 in the first cavity 12; one end of the short connecting piece 23 is rotatably connected with the first connecting end 21, and the other end of the short connecting piece 23 is detachably connected with the second connecting end 22. The short connecting piece 23 of the jumper device 2 can rotate around the first connecting end 21 to electrically connect or disconnect the two current connecting pieces 11 which are not communicated with each other.
As a further improvement of the jumper device 2, the jumper device 2 further includes a limiting unit 25, and the limiting unit 25 is disposed on the surface of the current connection region 1 and is far from the second connection end 22. The short connecting piece 23 is provided with a clamping groove 231, and the clamping groove 231 is selectively clamped on the second connecting end 22 or the limiting unit 25. The shape of the locking groove 231 matches with the second connection end 22 and the limiting unit 25. The first connection end 21 can be loosened by a tool such as a screwdriver and the like, and then the short connection piece 23 is pulled, so that the clamping groove 231 is clamped on the second connection end 23 or the limiting unit 25, and the short circuit or open circuit state switching is realized.
To facilitate adjustment of the short connecting piece 23, the jumper 2 further comprises a tension spring 24. The tension spring 24 is arranged on the first connecting end 21 in a surrounding manner, one end of the tension spring 24 is fixedly connected with the first connecting end 21, and the other end of the tension spring 24 is fixedly connected with the inner surface of the first through hole 15. In this structure, the first connecting end 21 is pulled to lift the short connecting piece 23, so that the short connecting piece is separated from the second connecting end 22 or the limiting unit 25, and then the short connecting piece is rotated to a required position. In this structure, the first connecting end 21 and the first through hole 15 are connected in a sliding manner.
Further, the spacing unit 25 includes a first stopper 251 and a second stopper 252, the first stopper 251 and the second stopper 252 extending outward perpendicularly to the surface of the current junction region 1; the side surface of the first block 251 close to the second connecting end 22 is propped against the side surface of the short connecting piece 23 far away from the second connecting end 22; the second stopper 252 has a shape corresponding to the shape of the engaging groove 231. The limiting unit 25 can limit the side surface of the short connecting piece 23 and the clamping groove 231 at the same time, and can be matched with the tension spring 24 to better limit the short connecting piece 23.
As shown in fig. 2 in combination with fig. 4, the voltage connection area 3 includes a voltage connection pad 31, a voltage input terminal 33 and a voltage output terminal 34, the voltage connection area 3 is provided with a second cavity 32 therethrough, and the voltage connection pad 31 is disposed in the second cavity 32; one end of the voltage wiring area 3 close to the phase line is provided with a voltage input terminal 33, one end of the voltage wiring area 3 close to the analog input merging unit is provided with a voltage output terminal 34, and the voltage input terminal 33 and the voltage output terminal 34 are both electrically connected with the voltage connecting sheet 31. The voltage connection area 3 is used to obtain phase voltages in parallel with the phase lines. For convenience of use, the voltage connection plate 31 may be arranged in a star shape in the present invention, that is, the voltage input terminal 33 has one set of terminals, and the voltage output terminal 34 has two sets of terminals isolated from each other, so as to facilitate extension of the wiring.
As shown in fig. 2, as a further improvement of the present invention, the current input terminal 13 and the current output terminal 14 each include a test current connection terminal 17, the current connection region 1 is provided with a plurality of third through holes 4, the third through holes 4 are communicated with the first cavity 12, and the test current connection terminal 17 passes through the third through holes 4 and is electrically connected with the current connection plate 11; the voltage input terminal 33 and the voltage output terminal 34 each include a test voltage connection terminal 35; a plurality of fourth through holes 5 are formed in the voltage wiring area 3, and the fourth through holes 5 are communicated with the second cavity 32; the test voltage terminal 35 passes through the fourth through hole 5 to be electrically connected to the voltage connection pad 31. In order to facilitate the electric merging unit field tester to test the analog input merging unit, a test current wiring terminal 17 and a test voltage wiring terminal 35 are arranged, and the test current wiring terminal 17 and the test voltage wiring terminal 35 can be respectively connected with the merging unit field tester to test the power value display of the merging unit field tester.
The working state of the electric energy metering combined terminal block and the access process of the merging unit field tester are described below by taking fig. 6 and fig. 4 as an example, UA, UB and UC are phase voltages, IA, IB and IC are currents flowing into the electric energy metering combined terminal block; IA ', IB ' and IC ' are the currents flowing out of the electric energy metering combined terminal block. Under the normal working condition of the analog input merging unit, the voltage input terminal 33 is electrically connected with the phase line, and the voltage output terminal 34 is electrically connected with the analog input merging unit; assume that the current input terminal 13 of the current wiring region 1 includes a first current input terminal 131, a second current input terminal 132, and a third current input terminal 133; the current output terminal 14 includes a first current output terminal 141, a second current output terminal 142 and a third current output terminal 143, as shown, the phase current flows from the phase line into the second current input terminal 132, through the jumper device 2 to the first current output terminal 141 and flows into the analog input combining unit, wherein the jumper device 2 electrically connects the second current input terminal 132 and the first current output terminal 141; and then returns to form a loop by the third current output terminal 143 and the third current input terminal 133.
When the analog input merging unit field tester needs to access the electric energy metering combined wiring terminal block, the short connecting sheet 23 is rotated to the position of the limiting unit 25; the voltage input end of the analog input merging unit field tester is connected to a test voltage wiring terminal 35 on a voltage output terminal 34; the current input end of the merging unit field tester is connected to the test current wiring terminal 17 of the second current output terminal 142; connecting the current output end of the merging unit field tester to the test current wiring terminal 17 of the first current input terminal 131; the phase current at this time flows through the second current input terminal 132, the second current output terminal 142, the current input terminal of the merging unit field tester, the current output terminal of the merging unit field tester, the first current input terminal 131, the first current output terminal 141, the analog input merging unit, the third current output terminal 143, and the third current input terminal 133. In this mode of operation, the first connection terminal 21 and the second connection terminal 22 are disconnected, the voltage input terminal of the merging unit field tester is connected in parallel to the voltage output terminal 34, and the current input terminal and the current output terminal of the merging unit field tester are connected in series in the current loop of the analog input merging unit, so as to test the analog input merging unit.
As a further improvement of the invention, the test current terminal 17 is provided with a polygonal socket 6, and the polygonal socket 6 is arranged on an end face of the test current terminal 17 remote from the current terminal area 1 and extends in the axial direction of the test current terminal 17.
The test voltage terminal 35 is also provided with a polygonal insertion hole 6, and the polygonal insertion hole 6 is arranged on the end face of the test voltage terminal 35 far away from the voltage terminal area 3 and extends along the axial direction of the test voltage terminal 35.
The test voltage wiring and the test current wiring are circular interfaces, the circular interfaces can be inserted into the polygonal jacks 6 of the test current wiring terminals 17 or the test voltage wiring terminals 35, the circular interfaces and the polygonal jacks 6 form a plurality of stable line contacts, the crocodile clip is not easy to fall off, and the crocodile clip can be replaced. In actual use, the polygonal jacks 6 on the test current wiring terminals 17 are different from the polygonal jacks 6 of the test voltage wiring terminals 35 in number of sides, such as a triangle, a quadrangle or a hexagon, so that the voltage input end, the current input end and the current output end of the merging unit field tester can be conveniently distinguished, identification and fool proofing are facilitated, and the situation of inserting wrong terminals is prevented.
As shown in fig. 5, the electric energy metering combined terminal block is further provided with a dovetail groove 7, the dovetail groove 7 penetrates through the electric energy metering combined terminal block along the arrangement direction of the voltage wiring area 3 and the current wiring area 1, the electric energy metering combined terminal block can be placed on a guide rail of an electric energy metering cabinet through the dovetail groove 7, and the electric energy metering combined terminal block is suitable for occasions with compact space and incapability of being installed according to conventional layout. The invention can be transversely arranged and also can be vertically arranged in the local control cubicle of the merging unit of the transformer substation according to the requirement.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (1)
1. An electric energy metering combined wiring terminal block comprises a plurality of current wiring areas (1) and voltage wiring areas (3), wherein the voltage wiring areas (3) and the current wiring areas (1) are arranged at intervals; the current wiring area (1) comprises three current connecting sheets (11), a plurality of current input terminals (13) and current output terminals (14), the current wiring area (1) is provided with three through first cavities (12), the current connecting sheets (11) are all arranged in the first cavities (12) and are mutually insulated, one ends, close to phase lines, of the current connecting sheets (11) are provided with the current input terminals (13), one ends, close to analog quantity input merging units, of the current connecting sheets (11) are provided with the current output terminals (14), and the current input terminals (13) and the current output terminals (14) are electrically connected with the current connecting sheets (11); each voltage wiring area (3) is electrically connected with the phase line and the analog quantity input merging unit respectively; the method is characterized in that: the current wiring area (1) is further provided with a jumper device (2), the jumper device (2) is electrically connected with the two current connecting pieces (11) respectively, and the jumper device (2) can selectively electrically connect or disconnect the two current connecting pieces (11);
the jumper device (2) comprises a first connecting end (21), a second connecting end (22), a short connecting sheet (23), a tension spring (24) and a limiting unit (25), the current wiring area (1) is further provided with a first through hole (15) and a second through hole (16), and the first through hole (15) and the second through hole (16) are respectively communicated with different first cavities (12); the first connecting end (21) extends into the first through hole (15) and is electrically connected with the current connecting sheet (11) in the first cavity (12); the second connecting end (22) extends into the second through hole (16) and is electrically connected with the current connecting sheet (11) in the first cavity (12); one end of the short connecting sheet (23) is rotatably connected with the first connecting end (21), and the other end of the short connecting sheet (23) is detachably connected with the second connecting end (22);
the tension spring (24) is arranged on the first connecting end (21) in a surrounding mode, one end of the tension spring (24) is fixedly connected with the first connecting end (21), and the other end of the tension spring (24) is fixedly connected with the inner surface of the first through hole (15);
the limiting unit (25) is arranged on the surface of the current wiring area (1) and is far away from the second connecting end (22); a clamping groove (231) is formed in the short connecting piece (23), and the clamping groove (231) is selectively clamped on the second connecting end (22) or the limiting unit (25); the limiting unit (25) comprises a first stop block (251) and a second stop block (252), and the first stop block (251) and the second stop block (252) extend outwards perpendicular to the surface of the current wiring region (1); the side surface of the first block (251) close to the second connecting end (22) is propped against the side surface of the short connecting piece (23) far away from the second connecting end (22); the shape of the second stop block (252) is matched with that of the clamping groove (231);
the voltage wiring area (3) comprises a voltage connecting piece (31), a voltage input terminal (33) and a voltage output terminal (34), the voltage wiring area (3) is provided with a through second cavity (32), and the voltage connecting piece (31) is arranged in the second cavity (32); a voltage input terminal (33) is arranged at one end of the voltage wiring area (3) close to the phase line, a voltage output terminal (34) is arranged at one end of the voltage wiring area (3) close to the analog input merging unit, and the voltage input terminal (33) and the voltage output terminal (34) are both electrically connected with the voltage connecting sheet (31);
the current input terminal (13) and the current output terminal (14) both comprise a test current wiring terminal (17), the current wiring area (1) is provided with a plurality of third through holes (4), the third through holes (4) are communicated with the first cavity (12), and the test current wiring terminal (17) penetrates through the third through holes (4) to be electrically connected with the current connecting sheet (11); the voltage input terminal (33) and the voltage output terminal (34) both comprise a test voltage connection terminal (35); a plurality of fourth through holes (5) are formed in the voltage wiring area (3), and the fourth through holes (5) are communicated with the second cavity (32); the test voltage wiring terminal (35) penetrates through the fourth through hole (5) to be electrically connected with the voltage connecting sheet (31);
the test current wiring terminal (17) is provided with a polygonal jack (6), and the polygonal jack (6) is arranged on the end face, far away from the current wiring area (1), of the test current wiring terminal (17) and extends along the axial direction of the test current wiring terminal (17);
the test voltage wiring terminal (35) is provided with a polygonal jack (6), and the polygonal jack (6) is arranged on the end face, far away from the voltage wiring area (3), of the test voltage wiring terminal (35) and extends along the axial direction of the test voltage wiring terminal (35); the number of the sides of the polygonal jack (6) on the test current wiring terminal (17) is different from that of the polygonal jack (6) on the test voltage wiring terminal (35);
under the normal working condition of the analog quantity input merging unit, a voltage input terminal (33) is electrically connected with the phase line, and a voltage output terminal (34) is electrically connected with the analog quantity input merging unit; the current input terminals (13) of the current termination region (1) comprise a first current input terminal (131), a second current input terminal (132) and a third current input terminal (133); the current output terminal (14) comprises a first current output terminal (141), a second current output terminal (142) and a third current output terminal (143), phase current flows into the second current input terminal (132) from the phase line, reaches the first current output terminal (141) through a jumper device (2) and flows into the analog quantity input merging unit, wherein the jumper device (2) electrically connects the second current input terminal (132) and the first current output terminal (141); then the third current output terminal (143) and the third current input terminal (133) return to form a loop;
when the analog input merging unit field tester needs to be connected with the electric energy metering combined wiring terminal block, the short connecting sheet (23) is rotated to the position of the limiting unit (25); inputting the analog quantity into a voltage input end of a merging unit field tester to be connected to a test voltage wiring terminal (35) on a voltage output terminal (34); connecting the current input end of the merging unit field tester to a test current wiring terminal (17) of a second current output terminal (142); connecting the current output end of the merging unit field tester to a test current wiring terminal (17) of a first current input terminal (131); the phase current flows in the second current input terminal (132), the second current output terminal (142), the current input terminal of the merging unit field tester, the current output terminal of the merging unit field tester, the first current input terminal (131), the first current output terminal (141), the analog input merging unit, the third current output terminal (143), and the third current input terminal (133).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444461.0A CN110196347B (en) | 2019-05-27 | 2019-05-27 | Electric energy metering combined wiring terminal strip |
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|---|---|---|---|
| CN201910444461.0A CN110196347B (en) | 2019-05-27 | 2019-05-27 | Electric energy metering combined wiring terminal strip |
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| CN110196347A CN110196347A (en) | 2019-09-03 |
| CN110196347B true CN110196347B (en) | 2022-09-23 |
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| CN201910444461.0A Active CN110196347B (en) | 2019-05-27 | 2019-05-27 | Electric energy metering combined wiring terminal strip |
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| CN112924734A (en) * | 2021-02-01 | 2021-06-08 | 宁夏隆基宁光仪表股份有限公司 | Intelligent ammeter with anti-oxidation function and installation method thereof |
| CN113608160A (en) * | 2021-08-02 | 2021-11-05 | 中国电力科学研究院有限公司 | Joint junction box for metering gateway electric energy meter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202009085U (en) * | 2011-01-25 | 2011-10-12 | 七喜控股股份有限公司 | Connecting sheet for connecting circuits on circuit board |
| CN202259738U (en) * | 2011-09-27 | 2012-05-30 | 上海广为电器工具有限公司 | Connecting terminal structure |
| CN103472432A (en) * | 2013-09-12 | 2013-12-25 | 国家电网公司 | Intelligent substation electric energy measuring secondary circuit real load error detection device and method |
| CN203674458U (en) * | 2013-12-20 | 2014-06-25 | 公牛集团有限公司 | Socket plastic part connecting structure |
| CN103941059A (en) * | 2014-05-06 | 2014-07-23 | 国网上海市电力公司 | High-voltage combined junction box |
| CN203811656U (en) * | 2014-03-04 | 2014-09-03 | 国家电网公司 | Electric energy metering combined junction box |
| CN104485628A (en) * | 2014-12-09 | 2015-04-01 | 国家电网公司 | Integrated earthing box for high-voltage cable circuit |
| CN109085402A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | The multifunctional combined terminal box of electrical energy measurement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006258490A (en) * | 2005-03-15 | 2006-09-28 | Agilent Technol Inc | Test system and its junction box |
| CN201145702Y (en) * | 2008-01-16 | 2008-11-05 | 朱伟 | Electric energy metering combined wiring box |
| US9459304B1 (en) * | 2012-08-08 | 2016-10-04 | Perry Parkin | Method of fault prediction for electrical distribution systems and monitored loads |
| CN203433104U (en) * | 2013-09-12 | 2014-02-12 | 国家电网公司 | Real load error detector for secondary electric-energy metering loop of intelligent transformer station |
| CN204556692U (en) * | 2015-05-06 | 2015-08-12 | 广东电网有限责任公司江门供电局 | Multiple way electric metering junction box |
| CN205426962U (en) * | 2015-12-01 | 2016-08-03 | 黑龙江省送变电工程公司 | Intelligent substation combined test wiring dish |
| CN108152543B (en) * | 2018-01-19 | 2023-06-23 | 国网江苏省电力有限公司宿迁供电分公司 | Electric energy metering junction box with fault alarm function |
-
2019
- 2019-05-27 CN CN201910444461.0A patent/CN110196347B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202009085U (en) * | 2011-01-25 | 2011-10-12 | 七喜控股股份有限公司 | Connecting sheet for connecting circuits on circuit board |
| CN202259738U (en) * | 2011-09-27 | 2012-05-30 | 上海广为电器工具有限公司 | Connecting terminal structure |
| CN103472432A (en) * | 2013-09-12 | 2013-12-25 | 国家电网公司 | Intelligent substation electric energy measuring secondary circuit real load error detection device and method |
| CN203674458U (en) * | 2013-12-20 | 2014-06-25 | 公牛集团有限公司 | Socket plastic part connecting structure |
| CN203811656U (en) * | 2014-03-04 | 2014-09-03 | 国家电网公司 | Electric energy metering combined junction box |
| CN103941059A (en) * | 2014-05-06 | 2014-07-23 | 国网上海市电力公司 | High-voltage combined junction box |
| CN104485628A (en) * | 2014-12-09 | 2015-04-01 | 国家电网公司 | Integrated earthing box for high-voltage cable circuit |
| CN109085402A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | The multifunctional combined terminal box of electrical energy measurement |
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