CN209821264U - Three-phase electric energy meter metering box and test system - Google Patents
Three-phase electric energy meter metering box and test system Download PDFInfo
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- CN209821264U CN209821264U CN201920261539.0U CN201920261539U CN209821264U CN 209821264 U CN209821264 U CN 209821264U CN 201920261539 U CN201920261539 U CN 201920261539U CN 209821264 U CN209821264 U CN 209821264U
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 230000005611 electricity Effects 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 10
- 238000007689 inspection Methods 0.000 abstract description 20
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a three-phase electric energy meter metering box and test system belongs to electric energy meter metering box technical field, include: box and fixed mounting are in electric energy meter in the box, the inlet wire end electricity of electric energy meter is connected with isolator, the outlet wire end electricity of electric energy meter is connected with the circuit breaker, be provided with the socket on the box outer wall, the socket includes a plurality of binding post, the socket passes through binding post respectively with isolator's N looks inlet wire end and A looks inlet wire end, B looks inlet wire end or C looks inlet wire end electricity are connected, with each leading-out terminal of circuit breaker is connected, and with the feedback end and the control end electricity of the control cable plug of circuit breaker are connected, and this design only needs alone to accomplish the circuit inspection, has improved efficiency, has practiced thrift manpower and material resources.
Description
Technical Field
The utility model belongs to the technical field of the electric energy meter metering box, concretely relates to three-phase electric energy meter metering box and test system.
Background
A three-phase electric energy meter metering box is a box body for fixing an electric energy meter and a circuit breaker in three-phase alternating current application, and is one of necessary devices. A typical three-phase electric energy meter metering box is shown in figure 1, and is an epitope three-phase meter metering box, and the metering box mainly comprises a three-phase electric energy meter 2, a 4P disconnecting switch 3 and a 4P breaker 4 with an automatic reclosing switch, and the three-phase electric energy meter metering box and the isolating switch are respectively used for cutting off circuits before and after the meter.
In the process of usual line inspection, two persons generally work, one operator is at a metering box, and the other inspector is at an electric appliance used by a user or a user; in general, the operator's operations are: opening and closing a box door, manually opening and closing a switch, touching a meter pen of a test instrument to a cable fixing screw of a switch (electrically contacting a cable to be checked), making a call, communicating operation items of two persons, and the like. The automatic reclosing circuit breaker 4 in the metering box installed on site is controlled by a control center of a power supply station (through communication modes such as a wireless module or a carrier module in the electric energy meter) by connecting a control end and a feedback end into the electric energy meter 2 according to the national power grid requirements, and is inconvenient to be automatically controlled by the control center for follow-up check during line check, so that the automatic reclosing circuit breaker has an automatic switching function and still needs manual operation of personnel during on-site check.
The traditional inspection work wastes manpower, wastes time, is slow in speed and is not flexible.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a three-phase electric energy meter measurement case and test system, only need alone can accomplish the circuit inspection, improved efficiency, practiced thrift manpower and material resources.
In order to solve the technical problem, the technical scheme of the utility model is that:
three-phase electric energy meter batch meter includes: the electric energy meter comprises a box body and an electric energy meter fixedly arranged in the box body, wherein the wire inlet end of the electric energy meter is electrically connected with an isolating switch, the wire outlet end of the electric energy meter is electrically connected with a circuit breaker, and a control deflector rod of the circuit breaker is in an automatic gear; be provided with the socket on the box outer wall, the socket includes a plurality of binding post, the socket passes through binding post respectively with isolator's N looks inlet wire end and A looks inlet wire end, B looks inlet wire end or C looks inlet wire end electricity are connected, with each leading-out terminal electricity of circuit breaker is connected, and with the feedback end and the control end electricity of the control cable plug of circuit breaker are connected.
Further, the socket is installed at the bottom of the box body.
Further, the socket is an aviation socket.
Furthermore, the socket is embedded on the outer wall of the box body.
Further, the socket comprises eight wiring terminals, and each wiring terminal is respectively defined as a first wiring terminal, a second wiring terminal, a third wiring terminal, a fourth wiring terminal, a fifth wiring terminal, a sixth wiring terminal, a seventh wiring terminal and an eighth wiring terminal; the first connecting terminal and the second connecting terminal are electrically connected with a C-phase line inlet end and an N-phase line inlet end of the isolating switch respectively; the third connecting terminal, the fourth connecting terminal, the fifth connecting terminal and the sixth connecting terminal are respectively electrically connected with an A-phase outlet terminal, a B-phase outlet terminal, a C-phase outlet terminal and an N-phase outlet terminal of the circuit breaker; and the seventh wiring terminal and the eighth wiring terminal are respectively electrically connected with the feedback end and the control end of the control cable plug.
A test system of a three-phase electric energy meter metering box comprises a test center and a test terminal which are in wireless communication connection; the test center comprises a test interface, and the test interface is mutually inserted into the socket of the three-phase electric energy meter metering box to realize communication connection.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the utility model discloses a three-phase electric energy meter metering box includes: the electric energy meter comprises a box body and an electric energy meter fixedly arranged in the box body, wherein the wire inlet end of the electric energy meter is electrically connected with an isolating switch, the wire outlet end of the electric energy meter is electrically connected with a circuit breaker, and a control deflector rod of the circuit breaker is in automatic gear; a socket is arranged on the outer wall of the box body, the socket comprises a plurality of wiring terminals, the socket is respectively electrically connected with an N-phase wire inlet end, an A-phase wire inlet end, a B-phase wire inlet end or a C-phase wire inlet end of the isolating switch through the wiring terminals, is electrically connected with each wire outlet end of the circuit breaker, and is electrically connected with a feedback end and a control end of a control cable plug of the circuit breaker, a control signal is input through a cable between the socket and the control end of the control cable plug to control the circuit breaker to perform a brake pulling and closing action, and whether the circuit breaker normally works is judged according to the on-off state of the circuit breaker output by the cable between the socket; test signals are input through the cable between the socket and the circuit breaker outlet end, and the on-off state of the corresponding cable between the circuit breaker outlet end and the user electrical appliance end or the house-entering position can be judged according to whether the test signals are detected by the user electrical appliance end or the house-entering position, a box door does not need to be opened and manually closed during detection, and efficiency is improved.
The utility model discloses in, the socket is installed in the bottom of box, can not influence opening of box, avoids falling the ash in the socket simultaneously, the condition that influences its performance such as intaking, and the socket is aviation socket, and the plug of pegging graft on the socket is difficult for droing, guarantees the reliability of inspection.
The utility model discloses a test system of three-phase electric energy meter measuring box includes wireless communication connected test center and test terminal; the test center includes test interface, test interface pegs graft each other with the socket of foretell three-phase electric energy meter batch meter, realize communication connection, through test terminal control test center to the cable sending control signal and the test signal of being connected with the socket, test center gives test terminal with the wireless transmission of the feedback signal of received reaction circuit breaker on-off state for the inspector just can look over the inspection result through test terminal, only need in this inspection process alone can, the manpower has been saved.
To sum up, the utility model discloses a three-phase electric energy meter metering box and test system only need alone can accomplish carrying out the circuit inspection in-process, need not open the chamber door and can inspect, improved efficiency, through before dispatching from the factory or after dispatching from the factory the installation can, solved the problem of traditional inspection line, saved manpower and materials to can effectively guarantee the reliability of inspection.
Drawings
FIG. 1 is a schematic diagram of a three-phase electric energy meter batch box in the prior art;
FIG. 2 is a schematic structural diagram of the three-phase electric energy meter measuring box of the present invention;
in the figure, 1-box, 2-electric energy meter, 3-isolating switch, 4-breaker, 5-control cable plug, 6-control deflector rod, 7-cable hole, 8-socket and 9-current transformer.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
All directions referred to in the present specification are based on the drawings, and represent relative positional relationships only, and do not represent absolute positional relationships.
The first embodiment is as follows:
as shown in fig. 2, the three-phase electric energy meter measuring box comprises: the electric energy meter comprises a box body 1 and an electric energy meter 2 fixedly installed in the box body 1, wherein a wire inlet end of the electric energy meter 2 is electrically connected with a disconnecting switch 3, and a wire outlet end is electrically connected with a circuit breaker 4. The outer wall of the box body 1 is provided with a socket 8, the socket 8 comprises a plurality of wiring terminals, and the socket 8 is electrically connected with the N-phase wire inlet end and the A-phase wire inlet end of the isolating switch 3, the B-phase wire inlet end or the C-phase wire inlet end of the isolating switch 3, each wire outlet end of the circuit breaker 4 and the N-phase wire outlet end of the circuit breaker 4 respectively through the wiring terminals, and is electrically connected with the feedback end and the control end of the control cable plug 5 of the circuit breaker 4. The control driving lever 6 of the circuit breaker 4 is in automatic gear, a control signal is input to the circuit breaker 4 through a cable between the socket 8 and the control end of the control cable plug 5, the circuit breaker 4 can be controlled to perform switching-on and switching-off actions, and whether the circuit breaker 4 works normally or not can be judged according to the on-off state of the circuit breaker 4 output through the cable between the socket 8 and the feedback end of the control cable plug 5. And the door does not need to be opened and manually opened and closed during inspection, so that the efficiency is improved.
As shown in fig. 2, the outlet terminal of the circuit breaker 4 is connected to a home of a user, and by inputting a test signal to a cable connected between the outlet terminal of any phase of the socket 8 and the outlet terminal of the circuit breaker 4 and the inlet terminal of the N-phase, the on-off state of a corresponding cable between the outlet terminal of the circuit breaker 4 and the electrical appliance terminal of the user or the household can be determined according to whether the test signal is detected at the electrical appliance terminal of the user or the household. If test signals are input at the A-phase outlet end and the N-phase outlet end of the circuit breaker 4, testing is carried out between the A-phase inlet end and the N-phase inlet end of the user electrical appliance end or the user inlet position, when the signals are tested, the cable between the A-phase outlet end of the circuit breaker 4 and the A-phase inlet end of the user electrical appliance end or the user inlet position is normally connected, otherwise, the cable between the B-phase outlet end and the C-phase outlet end of the circuit breaker 4 and the cable between the B-phase inlet end and the C-phase inlet end of the user electrical appliance end or the user inlet position are not connected, and the testing method of the cables between the B-phase outlet. The inspection process can be completed by only one person, so that the efficiency is improved, and the manpower and material resources are saved.
As shown in fig. 2, the socket 8 includes eight connection terminals, each of which is defined as a first connection terminal, a second connection terminal, a third connection terminal, a fourth connection terminal, a fifth connection terminal, a sixth connection terminal, a seventh connection terminal, and an eighth connection terminal, the first wiring terminal and the second wiring terminal are respectively and electrically connected with a C-phase wire inlet end and an N-phase wire inlet end of the isolating switch 3 through a cable C and a cable N, the third wiring terminal, the fourth wiring terminal, the fifth wiring terminal and the sixth wiring terminal are respectively and electrically connected with an A-phase wire outlet end, a B-phase wire outlet end, a C-phase wire outlet end and an N-phase wire outlet end of the circuit breaker 4 through a cable A ', a cable B', a cable C 'and a cable N', and the seventh wiring terminal and the eighth wiring terminal are respectively and electrically connected with a feedback end and an output end of the control cable plug 5 through a feedback signal line E and a control signal line F. The order in which the terminals are defined does not represent the order in which they are arranged in the socket 8. The control signal line F, the phase line between the N-phase outlet end of the isolating switch 3 and the N-phase inlet end of the circuit breaker 4 and the cable N jointly form a control loop for sending a control signal to the circuit breaker 4, so that the circuit breaker 4 is controlled to perform switching-on and switching-off actions.
As shown in fig. 2, the phase C incoming line terminal of the isolating switch 3 is electrically connected to the first connection terminal, and can provide power for a testing instrument electrically connected to the socket 8, and provide a 220V control signal for the control signal line F through the testing instrument. The cable C, the phase line between the N-phase outlet end of the isolating switch 3 and the N-phase inlet end of the circuit breaker 4 and the cable N jointly form a power supply loop, and the cable C is connected to the inlet end of the isolating switch 3, so that the condition that the isolating switch 3 or the electric energy meter 2 cannot normally supply power to the testing instrument due to faults can be avoided.
As shown in fig. 2, the control end of the circuit breaker 4 includes a control cable plug 5 and a control lever 6 for making the circuit breaker 4 be manually controlled or automatically controlled, the control cable plug 5 is electrically connected to the electric energy meter 2 through two control cables, and the control signal line F and the feedback signal line E are electrically connected to the two control cables, respectively. When dialling manual the fender to control driving lever 6, the closure and the disconnection of circuit breaker 4 can only realize through staff operation control driving lever 6, if dial the automatic gear, then can also operate through the control signal of control signal line F input, consequently, the utility model discloses well control driving lever 6 must be in the automatic gear. When the control signal line F inputs a control signal, the control signal line F has 220V voltage to a zero line (a cable connected with the N of the circuit breaker 4), and the circuit breaker 4 is closed; when the control signal line F does not input a control signal, the control signal line F has no voltage to the zero line, and the circuit breaker 4 is turned off. The feedback signal line E is connected to a high resistance resistor in series, and outputs 0V (N phase of the circuit breaker 4 is a reference terminal) when the circuit breaker 4 is opened, and outputs 220V (N phase of the circuit breaker 4 is a reference terminal) when the circuit breaker 4 is closed.
As shown in fig. 2, phase lines are respectively and correspondingly connected between the phase a outgoing line end, the phase B outgoing line end and the phase C outgoing line end of the isolating switch 3 and the phase a incoming line end, the phase B incoming line end and the phase C incoming line end of the circuit breaker 4, and the electric energy meter 2 includes current transformers 9 respectively connected in series to the phase lines. The working principle of the current transformer 9 is that a plurality of insulated wires are wound on one conductor and sleeved with magnetic materials, and when current flows on the ab conductor, voltage is induced at the cd end of each wire. After being connected into the electric energy meter 2, the phase lines pass through the current transformer 9 and then are connected to the output end, so that each phase line passes through the electric energy meter 2 but is not electrically interrupted. In addition, in the electric energy meter 2, the inlet wire and the outlet wire of the zero line are connected together.
As shown in fig. 2, two cable holes 7 are formed in the bottom of the box 1 for the cables at the inlet end of the disconnector 3 and the outlet end of the breaker 4 to pass through respectively. Socket 8 installs in the bottom of box 1, can not influence opening of box 1's chamber door, avoids falling the condition that ash, intake etc. influence its performance in socket 8 simultaneously, and wherein, socket 8 can also inlay and establish on the outer wall of box 1. The socket 8 is preferably an 8-core aviation socket, and a plug inserted into the socket 8 is not easy to fall off, so that the inspection reliability is ensured.
The utility model discloses a three-phase electric energy meter batch meter only needs alone to accomplish carrying out the line inspection in-process through increasing many test cables of being connected with isolator and circuit breaker electricity in the box, need not open the chamber door and can inspect, has improved efficiency, and through before dispatching from the factory or after dispatching from the factory the installation can.
Example two:
a test system of a three-phase electric energy meter metering box comprises a test center and a test terminal which are in wireless communication connection; the test center includes test interface, and test interface and the socket 8 of three-phase electric energy meter batch meter in the embodiment one peg graft each other, realizes communication connection, and test interface is the aviation plug with aviation socket looks adaptation. Control signal and test signal are sent to the cable of being connected with socket 8 through test terminal control test center, and test center sends the feedback signal wireless of the 4 on-off states of reaction circuit breaker who receives for test terminal just can look over the inspection result through test terminal, only need in the inspection process alone can, the problem of traditional inspection line has been solved, manpower and materials have been saved, efficiency is effectively improved, and can effectively guarantee the reliability of inspection.
The utility model discloses a test system of three-phase electric energy meter batch meter through with the socket electricity of three-phase electric energy meter batch meter test center be connected and with test center wireless communication connection's test terminal, the inspector through test terminal control test center transmission control signal and test signal and receive feedback signal, only need in the inspection process alone can, solved the problem of traditional inspection line, saved manpower and materials.
Although specific embodiments of the present invention have been described above, it should be understood by those skilled in the art that the described embodiments are only some of the embodiments of the present invention, rather than all embodiments, which are given by way of illustration only, and the scope of the present invention is defined by the appended claims. Without any inventive step, those skilled in the art can make various changes or modifications to the embodiments without departing from the spirit and scope of the present invention.
Claims (6)
1. Three-phase electric energy meter batch meter includes:
the electric energy meter comprises a box body and an electric energy meter fixedly arranged in the box body, wherein the wire inlet end of the electric energy meter is electrically connected with an isolating switch, the wire outlet end of the electric energy meter is electrically connected with a circuit breaker,
a control deflector rod of the circuit breaker is in an automatic gear;
be provided with the socket on the box outer wall, the socket includes a plurality of binding post, the socket passes through binding post respectively with isolator's N looks inlet wire end and A looks inlet wire end, B looks inlet wire end or C looks inlet wire end electricity are connected, with each leading-out terminal electricity of circuit breaker is connected, and with the feedback end and the control end electricity of the control cable plug of circuit breaker are connected.
2. A three-phase electric energy meter batch tank according to claim 1, characterized in that the socket is mounted at the bottom of the tank.
3. A three-phase electric energy meter batch tank according to claim 1, characterized in that the socket is an aviation socket.
4. A three-phase electric energy meter batch tank according to claim 1, characterized in that the socket is embedded in the outer wall of the tank.
5. A three-phase electric energy meter batch tank according to claim 1, characterized in that the socket comprises eight of the terminals, each terminal being defined as a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal, a seventh terminal and an eighth terminal, respectively;
the first connecting terminal and the second connecting terminal are electrically connected with a C-phase line inlet end and an N-phase line inlet end of the isolating switch respectively;
the third connecting terminal, the fourth connecting terminal, the fifth connecting terminal and the sixth connecting terminal are respectively electrically connected with an A-phase outlet terminal, a B-phase outlet terminal, a C-phase outlet terminal and an N-phase outlet terminal of the circuit breaker;
and the seventh wiring terminal and the eighth wiring terminal are respectively electrically connected with the feedback end and the control end of the control cable plug.
6. A test system of a three-phase electric energy meter metering box is characterized by comprising a test center and a test terminal which are in wireless communication connection;
the test center comprises a test interface, and the test interface is mutually plugged with the socket of the three-phase electric energy meter measuring box of any one of claims 1 to 5 to realize communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261539.0U CN209821264U (en) | 2019-03-01 | 2019-03-01 | Three-phase electric energy meter metering box and test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261539.0U CN209821264U (en) | 2019-03-01 | 2019-03-01 | Three-phase electric energy meter metering box and test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209821264U true CN209821264U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920261539.0U Withdrawn - After Issue CN209821264U (en) | 2019-03-01 | 2019-03-01 | Three-phase electric energy meter metering box and test system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209821264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738680A (en) * | 2019-03-01 | 2019-05-10 | 潍坊五洲浩特电气有限公司 | Three-phase electric energy meter batch meter and test macro |
-
2019
- 2019-03-01 CN CN201920261539.0U patent/CN209821264U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738680A (en) * | 2019-03-01 | 2019-05-10 | 潍坊五洲浩特电气有限公司 | Three-phase electric energy meter batch meter and test macro |
| CN109738680B (en) * | 2019-03-01 | 2024-04-05 | 潍坊五洲浩特电气有限公司 | Three-phase electric energy meter measuring box and test system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191220 Effective date of abandoning: 20240405 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191220 Effective date of abandoning: 20240405 |