CN113899926A - Short-time uninterrupted meter changing device and meter changing method thereof - Google Patents
Short-time uninterrupted meter changing device and meter changing method thereof Download PDFInfo
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- CN113899926A CN113899926A CN202111122979.6A CN202111122979A CN113899926A CN 113899926 A CN113899926 A CN 113899926A CN 202111122979 A CN202111122979 A CN 202111122979A CN 113899926 A CN113899926 A CN 113899926A
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- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 6
- 238000009826 distribution Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 238000010276 construction Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
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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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Abstract
The invention relates to a short-time uninterrupted meter changing device and a meter changing method thereof, and belongs to the technical field of electric power metering devices. The power supply protection device comprises a box body made of an insulating material, a device panel is installed in the box body, a power grid protection circuit breaker is installed on the device panel, a user protection circuit breaker, a power grid power supply interface, a user power supply interface and four connecting wires, among the four connecting wires, one end of each connecting wire is connected to an upper port of an incoming line switch of an ammeter, the other end of each connecting wire is connected to the power grid protection circuit breaker through the power grid power supply interface, one end of each residual connecting wire is connected to a lower port of an outgoing line switch of the ammeter, the other end of each residual connecting wire is connected to the user protection circuit breaker through the user power supply interface, and a power supply indication device is further installed on the device panel. The invention has high reliability and wide application range, and perfectly realizes the replacement of the short-time uninterrupted electric energy meter.
Description
Technical Field
The invention relates to a short-time uninterrupted meter changing device and a meter changing method thereof, and belongs to the technical field of electric power metering devices.
Background
At present, the traditional method of a lower-voltage electric energy meter of a power supply company is as follows: after receiving a user meter changing request or finding that the user electric meter is damaged and needs to be changed, a reporter should report a distribution room manager in time, the distribution room manager applies for an electric meter changing work ticket, fills in a user name, a repair date, a user number, a user detailed address and a meter changing reason, and arranges an executor to receive the electric meter in time and change the electric meter; before the meter is changed on site, the power failure notification is carried out no less than 24 hours in advance; when the current situation arrives, firstly, a user is informed to power off and complete the table changing operation; the executor fills in the information of the new and old tables and signs, signs by the user and signs by the meter reader, and then sends, manages and builds the file.
The replacement of the low-voltage electric energy meter is an important part of the work of metering business, the current periodic rotation of the electric energy meter and the change of the business schedule both need to carry out short-time power failure operation on a client, and as the client has higher requirements on uninterrupted power supply, although power failure notification work is well done in multiple channels, some clients do not pay attention to the power failure notification of a power supply department in advance, the frequent change of the contact telephone of the client, the failure of the client to answer the telephone in time and other uncertain factors can cause the client to be unaware of the power failure operation. Even if there is a short-term power failure during meter replacement, there is a possibility that the customer will not understand, and thus there is a large risk of customer complaints. Because the client needs to be informed 30 minutes in advance before the power failure operation of the table changing, the table changing work consumes much time and has large risk.
With the gradual promotion of concepts such as the electric power internet of things and the construction of low-voltage fine-quality transformer areas, the electric energy meter is gradually upgraded from the original 09-version ordinary electric energy meter and 13-version intelligent electric energy meter into a brand-new modularized internet-of-things electric energy meter, a new round of electric energy meter replacement plan is gradually attacked and is influenced by a leading idea that the power supply quality is continuously promoted, and new meter replacement work needs to be carried out on the basis that the power consumption of users is not influenced.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a short-time uninterrupted meter changing device and a meter changing method thereof, the meter changing device has high reliability and wide application range, the short-time uninterrupted electric energy meter changing is perfectly realized, the workload of a user notification link before the meter changing is practically saved after the uninterrupted meter changing is realized, the user is effectively reduced to inform the user of the bad notification of the customer in the meter changing process while the workload of the link is predicted to be reduced by more than 25%, the influence of power failure in the traditional meter changing process is practically eliminated, the number of opinion worksheets and complaint worksheets generated by the customer due to the power failure is greatly reduced, and the power supply high-quality service level and the marketing site working efficiency are effectively improved.
In order to achieve the purpose, the invention provides the following technical scheme:
a short-time uninterrupted meter changing device is characterized by comprising a box body made of insulating materials, a device panel is installed in the box body, a power grid protection circuit breaker, a user protection circuit breaker, a power grid power interface, a user power interface and four connecting wires are installed on the device panel, wherein the power grid power interface is positioned right above the power grid protection circuit breaker, the user power interface is positioned right above the protection circuit breaker, one end of each connecting wire is connected to an upper port of an incoming switch of an ammeter, the other end of each connecting wire is connected to the power grid protection circuit breaker through the power grid power interface, one end of each remaining connecting wire is connected to a lower port of an outgoing switch of the ammeter, the other end of each connecting wire is connected to the user protection circuit breaker through the user power interface, and a power supply indicating device is further installed on the device panel;
preferably, a current transformer is arranged in the box body and below the device panel, and is connected with the power grid protection circuit breaker, the user protection circuit breaker and the power supply indicating device;
preferably, the upper surface of the device panel is provided with a use instruction area and a notice area;
preferably, the box is upper and lower open-type structure, including case lid and case body, and case lid and case body one side are articulated mutually, and the antiskid handle is installed to the opposite side, and the coating of box surface has the water proof coating of uV.
The invention relates to a meter changing method of a meter changing device without power outage for a short time, which is characterized by comprising the following steps:
1. select the connecting wire
Before the table is changed, equipment and layout in a table box are confirmed, and the connecting line with which specification is used is judged;
2. breaking circuit breaker
The power grid protection circuit breaker and the user protection circuit breaker are in an off state;
3. bypass communication
Under the condition of well taking safety protection measures, firstly, the bypass communication between an upper port of an inlet switch of the electric meter and a lower port of an outlet switch of the electric meter is completed through four connecting wires;
4. flow diversion
The power grid protection circuit breaker and the user protection circuit breaker are sequentially closed, the power supply indicating device is lightened, and the shunting function is completed by observing whether the current displayed on the liquid crystal display screen of the electric meter to be replaced is obviously reduced; if misconnection, virtual connection and missing connection occur, the power grid protection circuit breaker and the user protection circuit breaker automatically trip to protect the safety of field operating personnel;
5. change table
After the bypass is connected, pulling down an incoming switch and an outgoing switch of the ammeter, turning off a liquid crystal screen of the ammeter at the moment, cutting off a circuit, starting a power-off and meter-changing process by a worker, displaying an operation current value detected by a current transformer 8 in real time by the liquid crystal screen at the moment, judging whether the device is effective or not and judging a user load, avoiding contacting with an electrified bypass in the operation process, and always realizing site supervision by a guardian;
6. recovery site
After the replacement is finished, a lead-in switch and a lead-out switch of the electric energy meter are switched on, a liquid crystal screen of the electric energy meter is lightened at the moment, then a user protection circuit breaker is firstly switched off, then a power grid protection circuit breaker is switched off, whether the user normally uses electricity is judged by observing whether current exists on the liquid crystal screen of the electric energy meter, and then the site is recovered.
The short-time uninterrupted meter changing device provided by the invention utilizes the current distribution principle to open the switches at the front part and the rear part of the meter under the condition that the load of a user is normally supplied with power, so as to isolate the loop of the electric energy meter, realize the complete power failure of the loop of the electric energy meter, but not influence the power consumption of the user after the meter, thereby completing the uninterrupted meter changing. The problem of power failure in meter changing is solved, power failure is not needed in the meter changing process, and the working efficiency is effectively improved. The meter changing device is small in size and convenient to carry, supports different wiring equipment of an air switch, a breaker and a bus bar to get electricity, improves safety, has the functions of misconnection and virtual connection monitoring protection and leakage protection, ensures the safety of a meter changing process, enables a user to change a meter without feeling, and reduces the implementation resistance of metering work. The invention effectively improves the power supply high-quality service level and the marketing field work efficiency.
Drawings
FIG. 1 is a top view of a case of a short-term uninterruptible power supply meter changing apparatus according to the present invention;
FIG. 2 is an exploded view of the lid and body;
FIG. 3 is a schematic view of the structure of the device panel;
fig. 4 is a schematic connection diagram of a grid protection circuit breaker, a user protection circuit breaker, a current transformer, a power supply indicating device and a connecting wire.
In the figure: 1. a box body; 2. a device panel; 3. a grid protection circuit breaker; 4. a user protection circuit breaker; 5. a power grid power interface; 6. a user power interface; 7. a power source indicating device; 8. a current transformer; 9. a description area; 10. a notice area; 11. an anti-slip handle; 12. a box body; 13. and a box cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the short-time uninterrupted meter-changing device of the present embodiment includes a box body 1 made of an insulating material, a device panel 2 installed in the box body 1, a power grid protection circuit breaker 3, a user protection circuit breaker 4, a power grid power interface 5, a user power interface 6, and four connecting lines 14 installed on the device panel 2, wherein the grid power interface 5 is located directly above the grid protection breaker 3, the user power interface 6 is located directly above the protection breaker 4, in four connecting lines 14, one end of each of two connecting wires 14 is connected to the upper port of an incoming switch of the ammeter, the other end of each connecting wire is connected to the power grid protection circuit breaker 3 through a power grid power interface 5, one end of each of the remaining two connecting wires 14 is connected to the lower port of an outgoing switch of the ammeter, the other end of each connecting wire is connected to the user protection circuit breaker 4 through a user power interface 6, and a power supply indicating device 7 is further installed on the device panel 2;
a current transformer 8 is arranged in the box body 1 and below the device panel 2, and the current transformer 8 is connected with the power grid protection circuit breaker 3, the user protection circuit breaker 4 and the power supply indicating device 7;
for the convenience of use of an operator, the upper surface of the device panel 2 is provided with a use instruction area 9 and a notice area 10;
structure of the case 1: the box 1 is upper and lower open-type structure, including case lid 13 and case body 12, and case lid 13 and case body 12 one side are articulated mutually, and anti-skidding handle 11 is installed to the opposite side, and 1 outer surface coating of box has the uV water proof coating.
The method for replacing the meter without power outage in the embodiment comprises the following steps:
1. select the connecting wire
Before the table is changed, the equipment and the layout in the table box are confirmed, and the connecting line 14 with which specification is used is judged;
2. breaking circuit breaker
The power grid protection circuit breaker 3 and the user protection circuit breaker 4 are in an open state;
3. bypass communication
Under the condition of well taking safety protection measures, firstly, the bypass communication between an upper port of an inlet switch of the electric meter and a lower port of an outlet switch of the electric meter is completed through four connecting wires 14;
4. flow diversion
The power grid protection circuit breaker 3, the user protection circuit breaker 4 and the power supply indicating device 7 are sequentially turned on, and the shunting function is completed by observing whether the current displayed on the liquid crystal screen of the ammeter to be replaced is obviously reduced; if misconnection, virtual connection and missing connection occur, the power grid protection circuit breaker 3 and the user protection circuit breaker 4 automatically trip to protect the safety of field operating personnel;
5. change table
After the bypass is connected, pulling down an incoming switch and an outgoing switch of the ammeter, turning off a liquid crystal screen of the ammeter at the moment, cutting off a circuit, starting a power-off and meter-changing process by a worker, displaying an operation current value detected by a current transformer 8 in real time by the liquid crystal screen at the moment, judging whether the device is effective or not and judging a user load, avoiding contacting with an electrified bypass in the operation process, and always realizing site supervision by a guardian;
6. recovery site
After the replacement is finished, the incoming line switch and the outgoing line switch of the electric energy meter are switched on, the liquid crystal screen of the electric energy meter is lightened, then the user protection circuit breaker 4 is switched off firstly, then the power grid protection circuit breaker 3 is switched off, whether the user normally uses electricity is judged by observing whether current exists on the liquid crystal screen of the electric energy meter, and then the site is recovered.
The short-time uninterrupted meter changing device effectively solves the problem that power failure is needed for meter changing, reduces the working time, improves the working efficiency to 5 times, reduces the possibility of power failure complaint of field operation, and fully improves the customer satisfaction by 100 percent. Can be comprehensively popularized and applied in the industry of power supply companies. The description is as follows:
1. when the meter is replaced, the equipment is correctly connected, the power grid power supply and the user power supply are sequentially connected, the power grid protection circuit breaker 3 and the user protection circuit breaker 4 are opened, the meter replacing work can be started without power outage, and time is saved.
2. After the on-site meter replacement is finished, firstly, the wiring state of the electric energy meter is confirmed, the user protection circuit breaker 4 and the power grid protection circuit breaker 3 are sequentially disconnected, and the wiring is removed. And a power failure notice is not required to be issued in advance, so that the working efficiency is effectively improved.
3. The device has the advantages of simple structure, small appearance, light weight, small occupied space, simple and convenient use, suitability for various metering gauges and convenience for large-scale application.
4. The achievement has low manufacturing cost, no power consumption parts, extremely low power consumption and low popularization capital.
5. Long service life and high reliability. Can reliably work in various environments such as rural power grids, urban power grids and the like. The sensitivity is high, is applicable to all batch meters and meter types.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a device of changing table without power failure for a short time, its characterized in that includes the box of being made by insulating material, install the device panel in the box, install electric wire netting protection circuit breaker on the device panel, the user protection circuit breaker, electric wire netting power source, user power source interface, four connecting wires, wherein electric wire netting power source interface is located directly over the electric wire netting protection circuit breaker, user power source interface is located and is used for protecting circuit breaker directly over, among four connecting wires, there are the inlet wire switch upper shed of two connecting wires, the other end is connected to on the electric wire netting protection circuit breaker through electric wire netting power source interface, two remaining connecting wire one end is connected to the outlet switch lower shed of ammeter, the other end is connected to on the user protection circuit breaker through user power source interface, still install power indicating device on the device panel.
2. The device for changing the ammeter with short time without power outage as claimed in claim 1, wherein a current transformer is arranged below the device panel in the box body, and the current transformer is connected with the power grid protection circuit breaker, the user protection circuit breaker and the power supply indicating device.
3. The device for changing a watch without power interruption as claimed in claim 1, wherein said device panel has an upper surface provided with an instruction area and a notice area.
4. The device for changing a watch without power failure for a short time as claimed in claim 1, wherein the case body is of an up-and-down opening type structure and comprises a case cover and a case body, one side of the case cover and one side of the case body are hinged, the other side of the case cover and one side of the case body are provided with an anti-slip handle, and the outer surface of the case body is coated with a uV waterproof coating.
5. A method for changing a watch with a short-term uninterrupted power supply according to any one of claims 1-4, characterized in that it comprises the following steps:
1) select the connecting wire
Before the table is changed, equipment and layout in a table box are confirmed, and the connecting line with which specification is used is judged;
2) disconnecting circuit breaker
The power grid protection circuit breaker and the user protection circuit breaker are in an off state;
3) is communicated with a bypass
Under the condition of well taking safety protection measures, firstly, the bypass communication between an upper port of an inlet switch of the electric meter and a lower port of an outlet switch of the electric meter is completed through four connecting wires;
4) split flow of
The power grid protection circuit breaker and the user protection circuit breaker are sequentially closed, the power supply indicating device is lightened, and the shunting function is completed by observing whether the current displayed on the liquid crystal display screen of the electric meter to be replaced is obviously reduced; if misconnection, virtual connection and missing connection occur, the power grid protection circuit breaker and the user protection circuit breaker automatically trip to protect the safety of field operating personnel;
5) watch changing
After the bypass is connected, pulling down an incoming switch and an outgoing switch of the ammeter, turning off a liquid crystal screen of the ammeter at the moment, cutting off a loop, and starting a power-off and meter-changing process by a worker, wherein the liquid crystal screen displays an operating current value detected by the current transformer in real time and is used for judging whether the device is effective or not and a user load, and in the operation process, the electrified bypass is prevented from being contacted, and a guardian always monitors the site in place;
6) and restoring the site
After the replacement is finished, a lead-in switch and a lead-out switch of the electric energy meter are switched on, a liquid crystal screen of the electric energy meter is lightened at the moment, then a user protection circuit breaker is firstly switched off, then a power grid protection circuit breaker is switched off, whether the user normally uses electricity is judged by observing whether current exists on the liquid crystal screen of the electric energy meter, and then the site is recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111122979.6A CN113899926A (en) | 2021-09-24 | 2021-09-24 | Short-time uninterrupted meter changing device and meter changing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111122979.6A CN113899926A (en) | 2021-09-24 | 2021-09-24 | Short-time uninterrupted meter changing device and meter changing method thereof |
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| Publication Number | Publication Date |
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| CN113899926A true CN113899926A (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111122979.6A Pending CN113899926A (en) | 2021-09-24 | 2021-09-24 | Short-time uninterrupted meter changing device and meter changing method thereof |
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| CN112858745A (en) * | 2020-12-31 | 2021-05-28 | 国网浙江省电力有限公司嘉兴供电公司 | Low-voltage uninterrupted meter replacing device |
| CN112858776A (en) * | 2021-01-08 | 2021-05-28 | 国网浙江省电力有限公司湖州供电公司 | Special equipment for uninterrupted replacement of ammeter in electric energy metering box |
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2021
- 2021-09-24 CN CN202111122979.6A patent/CN113899926A/en active Pending
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| JP2001313703A (en) * | 2000-04-28 | 2001-11-09 | Matsushita Electric Ind Co Ltd | Portable electronic apparatus |
| KR200357558Y1 (en) * | 2004-05-08 | 2004-07-27 | 이종철 | A case for Electronic products |
| CN204044202U (en) * | 2014-07-25 | 2014-12-24 | 国家电网公司 | A kind of power failure changes the Apparatus and system of electric energy meter |
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