CN106771428A - Do not have a power failure the method for changing single-phase electric energy meter - Google Patents

Abstract

The invention provides a method for replacing a single-phase electric energy meter without power failure, belonging to the field of electric equipment, including: if the operating state of the electric energy meter to be replaced installed on the connector of the single-phase electric energy meter is normal, using a short-circuit component to sequentially connect the electric energy meter to be replaced Disconnect the incoming and outgoing wires of the electric energy meter to be replaced in turn, and remove the electric energy meter to be replaced; install the electric energy meter to be installed on the connector of the single-phase electric energy meter; remove the live wire and neutral wire in turn The short-circuit component on the board, copy the historical data of the electric energy meter to be replaced and the data of the short-circuit electric energy meter, and then clear the data of the short-circuit electric energy meter. By using the single-phase electric energy meter connector and the short-circuit component, the single-phase electric energy meter to be replaced can be short-circuited when replacing the electric energy meter, thereby completing the replacement of the single-phase electric energy meter on the basis of no power failure, and improving the user experience.

Description

The Method of Replacing Single-phase Electric Energy Meter Without Power Off

technical field

The invention belongs to the field of electric equipment, in particular to a method for replacing a single-phase electric energy meter without power failure.

Background technique

With the development of the economy, the installation of electric energy meters is increasing year by year. Taking a county power supply company as an example, there are a total of 385,954 single-phase electric energy meters in operation, which are rotated every six years, and 64,325 single-phase electric energy meters are rotated every year; the failure rate of single-phase electric energy meters is relatively high, about 3%. Replacement of 11,587 faulty single-phase electric energy meters; at the same time, about 2,000 single-phase electric energy meters need to be replaced every year to implement time-of-use electricity prices and fees. To sum up, the company replaces about 78,119 single-phase electric energy meters every year, which is a huge number.

At present, the on-site meter replacement adopts the operation mode of "disconnect the incoming line switch first, and then replace the electric energy meter". Taking the four-meter metering box to replace three of the electric energy meters as an example, it takes 10 minutes to replace one electric energy meter, and three electric energy meters are replaced. The meter caused a 30-minute power outage for four households, which lasted for a long time, and caused a power outage for users who had not changed their meters. Therefore, the replacement of single-phase watt-hour meters has caused a large number of users to have a power outage for a long time. Under the background that the vast majority of power users have higher and higher requirements on the reliability of power supply, the outage of meter replacement has seriously affected the quality of power supply service, and even caused the burning of electrical equipment of users, resulting in complaints. Therefore, it is imminent to realize meter replacement without power failure.

Contents of the invention

In order to solve the shortcomings and deficiencies in the prior art, the present invention provides a method for replacing a single-phase electric energy meter without power failure for improving user experience.

In order to achieve the above-mentioned technical purpose, the present invention provides a method for replacing a single-phase electric energy meter without power failure. The methods described include:

Check the running state of the electric energy meter to be replaced installed on the connector of the single-phase electric energy meter. If the operating state is normal, use the short-circuit component to connect the neutral wire and live wire of the electric energy meter to be replaced in sequence;

Disconnect the incoming and outgoing wires of the electric energy meter to be replaced in turn, and remove the electric energy meter to be replaced;

Install the watt-hour meter to be installed on the single-phase watt-hour meter connector;

Remove the short-circuit components connected to the live wire and the neutral wire in turn, copy the historical data of the electric energy meter to be replaced and the data of the short-circuit electric energy meter, and then clear the data of the short-circuit electric energy meter electric energy meter.

Optionally, the electric energy meter connector includes:

A plug, and a base mated with the plug; the plug includes a wiring hole, a binding post and a short-circuit hole, and the wiring hole and the incoming and outgoing wires adopt a clearance fit, and the binding post and the electric energy meter adopt a clearance fit;

One end of the support is provided with an electric energy meter accommodating part, and the electric energy meter accommodating part includes a first baffle and a second baffle arranged on the edge of the support, and the first baffle and the second baffle Fixing grooves for fixing the plugs are provided between the plates;

Wherein, two through holes are arranged on the plug, and fixing holes corresponding to the through holes are arranged on the fixing groove.

Optionally, a first protrusion is provided on the first baffle, a second protrusion is provided on the second baffle, and the first protrusion and the second protrusion are cylindrical ; A detachable overturn cover is provided on the first protrusion and the second protrusion; a blocking block corresponding to the overturn cover is provided on the support.

Optionally, a groove for pasting a customer number label is provided on the surface of the flip cover.

Optionally, at least four fixing M5 screw holes are provided on the support member.

Optionally, the short-circuit assembly includes a plug-in, a connecting wire, and an electric energy meter for measuring short-circuit electricity, and the plug-in includes a banana plug, and a wire connector connected to the banana plug;

An axial groove is arranged at the front of the banana plug, a tightening area is provided at the tail of the banana plug, and a protrusion is provided on the end face of the tightening area; at the front end of the wire connector A fixing plane is provided, and a fixing hole for the protrusion to pass is arranged on the fixing plane, and the fixing hole and the protrusion adopt a hard crimp fit;

A wiring hole for connecting wires to be welded and fixed is provided on the rear end surface of the wire connector.

Optionally, the cross-section of the front part is circular, and the cross-section of the rear part is a regular N-gon, where N≥4.

Optionally, the front portion includes a first cylinder with a first cross-sectional diameter, and a second cylinder with a second cross-sectional diameter, and the first cross-sectional diameter is larger than the second cross-sectional diameter.

Optionally, the axial groove is a cross-section groove, and the groove width of the groove is at least 0.5 mm.

The beneficial effects brought by the technical scheme provided by the invention are:

By using the single-phase electric energy meter connector and the short-circuit component, the electric energy meter to be replaced can be short-circuited when the electric energy meter is replaced, so that the electric energy meter can be replaced without power failure, thereby improving the user experience.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is the schematic flow chart of the method for replacing single-phase electric energy meter without power failure provided by the present invention;

Fig. 2 is a schematic diagram of the connection relationship of replacing a single-phase watt-hour meter provided by the present invention;

Fig. 3 is a specific structural schematic diagram of the plug provided by the present invention;

Fig. 4 is a schematic structural view of the base provided by the present invention;

Fig. 5 is a schematic structural view of the flip cover provided by the present invention;

Fig. 6 is a schematic diagram of the installation of the plug, flip cover and protective cover provided by the present invention on the base;

Fig. 7 is the structural representation of the banana plug in the plug-in plug provided by the present invention;

Fig. 8 is a schematic structural view of the wire connector in the plug-in plug provided by the present invention;

Fig. 9 is a schematic structural view of the plug-in plug provided by the present invention;

Fig. 10 is a schematic structural view of a plug-in with an insulating part provided by the present invention;

Fig. 11 is a schematic diagram of the connection relationship for replacing the electric energy meter provided by the present invention.

detailed description

In order to make the structure and advantages of the present invention clearer, the structure of the present invention will be further described below in conjunction with the accompanying drawings.

Embodiment one

The present invention provides a method for replacing a single-phase electric energy meter without power failure. The single-phase electric energy meter is installed on a connector, and the connector is provided with an anti-stealing flip cover, as shown in Figure 1. The method includes:

11. Check the running state of the electric energy meter to be replaced installed on the connector of the single-phase electric energy meter. If the operating state is normal, use the short-circuit component to connect the zero line and live wire of the electric energy meter to be replaced in turn;

12. Disconnect the incoming and outgoing lines of the electric energy meter to be replaced in turn, and remove the electric energy meter to be replaced;

13. Install the electric energy meter to be installed on the single-phase electric energy meter connector;

14. Remove the short-circuit components connected to the live wire and the neutral wire in turn, copy the historical data of the electric energy meter to be replaced and the data of the short-circuit electric energy meter, and then clear the data of the short-circuit electric energy meter.

In practice, the short-circuit component is provided with a short-circuit electric energy meter, so that when the electric energy meter to be replaced is short-circuited, the short-circuit electric energy meter can obtain the amount of electricity that should have flowed through the electric energy meter to be replaced during this period, so that the electric energy During the meter replacement, the effect of non-stop power supply and electricity metering is realized. The connection diagram of the replacement site is shown in Figure 2. The left side of Figure 2 is the electric energy meter to be replaced, and the right side is the short-circuit electric energy metering electric energy meter. The specific steps in actual operation are as follows:

a) Remove the metering box and the seal of the electric energy meter, and use the mobile operation platform to input the information of the removed seal into the marketing system;

b) Open the tail cover of the electric energy meter and the flip cover of the single-phase electric energy meter connector, check whether the wiring is correct, and whether the operating state of the electric energy meter to be replaced is normal;

c) Confirm that the electric energy meter of the short-circuit component has been cleared, and confirm that the short-circuit component is connected correctly;

d) According to the principle of "neutral wire first, then live wire", use the short-circuit component to short-circuit the replaced electric energy meter. Only the electric energy meter current changes, confirm that the short-circuit components are in good contact;

e) Disconnect the electric energy meter to be replaced, use the mobile operation platform to read the reading of the electric energy meter to be replaced, and then disconnect the outgoing line (keep the power supply to prevent the battery failure of the electric energy meter to be replaced and cannot be recorded by infrared);

f) Remove the electric energy meter to be replaced, install the electric energy meter to be installed, and use the mobile operation platform to input the disassembly and assembly information of the electric energy meter into the marketing system;

g) According to the principle of "fire wire first, then neutral wire", remove the short-circuit components. The specific removal sequence of the short-circuit components and single-phase electric energy meter connectors is "1-2-3-4". At the same time, observe the current of the electric energy meter to be installed and confirm The electric energy meter to be installed is installed well;

h) Check whether the wiring is correct and whether the electric energy meter to be installed is operating normally;

i) Press and hold the short-circuit power meter button for 3 seconds to record the current power and cleaning time, and use the mobile operating platform to enter the short-circuit power and cleaning time into the marketing system;

j) Seal the electric energy meter and metering box, and use the mobile operation platform to dismantle and enter the sealing information into the marketing system;

In order to realize the above method, the present invention provides a single-phase electric energy meter connector with the function of changing the meter without power failure, and the electric energy meter connector includes:

A plug, and a base mated with the plug; the plug includes a wiring hole, a binding post and a short-circuit hole, and the wiring hole and the incoming and outgoing wires adopt a clearance fit, and the binding post and the electric energy meter adopt a clearance fit;

One end of the base is provided with an electric energy meter storage part, and the electric energy meter storage part includes a first baffle plate and a second baffle plate arranged on the edge of the base, between the first baffle plate and the second baffle plate A fixing groove for fixing the plug is provided between them;

Wherein, two through holes are arranged on the plug, and fixing holes corresponding to the through holes are arranged on the fixing groove.

In practice, the single-phase electric meter connector includes a plug 1 and a base 2 matched with the plug. Specifically, the specific structure of the plug 1 is shown in Figure 3, including a wiring hole 11, a terminal 12, and a short-circuit hole 13. The terminal 12 is used as the main body of the plug 1, and one end of the terminal 12 is provided with a plug inserted into the electric energy meter interface. The connector has a wiring hole 11 on the end face of the other end of the terminal 12 for connecting wires. Two through holes 14 are provided on the side of the terminal 12 for connecting with the fixing slots on the base 2 through screws.

Correspondingly, as shown in Figure 4, an electric energy meter storage part is provided on the base 2, and the electric energy meter storage part includes a first baffle plate 21 and a second baffle plate 22 arranged on the edge of the base 2, and the two jointly form an electric energy meter. storage department. In order to better match the plug 1, a fixing groove 23 is provided between the first baffle 21 and the second baffle 22, the fixing groove 23 is used to accommodate the plug 1, and in order to fix the plug 1 on the base 2, A fixing hole 24 corresponding to the through hole 13 is provided in the fixing slot 23 .

In actual operation, insert the plug 1 into the fixing groove 23 in the base 2, so that the through hole 13 corresponds to the fixing hole 24 in position. At this time, use M5 screws to fix the plug 1 and the fixing groove 23, and then the electric energy The meter is inserted on the terminal 11 in the plug 1, so as to complete the operation of replacing the electric energy meter without power failure.

Optionally, a first protrusion is provided on the first baffle, a second protrusion is provided on the second baffle, and the first protrusion and the second protrusion are cylindrical , a detachable overturn cover is provided on the first protrusion and the second protrusion.

In practice, a first protrusion and a second protrusion are respectively provided on the first baffle plate 21 and the second baffle plate 22 , and an overturn cover 3 is provided on the first protrusion and the second protrusion. The specific structure of the flip cover 3 is shown in FIG. 5 . In order to allow the flip cover 3 to better rotate around the first protrusion and the second protrusion, the first protrusion and the second protrusion are configured as cylinders. It can also be seen from FIG. 4 that a blocking block 25 corresponding to the flip cover 3 is provided in the storage part of the electric energy meter for limiting the rotation angle of the flip cover 3 .

The flip cover is used to cover the M5 screw connected to the plug 1 when the electric energy meter is running normally, so as to prevent artificial short-circuiting of the incoming and outgoing lines of the electric energy meter to steal electricity. In order to enable the electric staff to clearly distinguish the customer to which the electric energy meter belongs, a groove for pasting a label of the customer's account number can also be provided on the surface of the flip cover 3 . FIG. 6 is a schematic diagram showing the effect of installing the plug 1 , the flip cover 3 and the protective cover 9 on the base 2 .

Optionally, at least four fixing M5 screw holes are provided on the support member.

In practice, in order to fix the base 2 on the wall or the inner wall of the electrical box, at least four fixing M5 screw holes are provided on the base 2, so as to be fixed by using M5 screws during actual use.

Optionally, the plug 1 is also provided with a protective cover 9 for preventing electric shock.

In practice, a protective cover 9 is also provided on the plug 1 to prevent workers from touching live parts and causing electric shock when replacing the electric energy meter.

By inserting the plug into the fixing slot in the base, so that the through hole corresponds to the fixing hole in position, at this time, use the bolt to fix the plug and the fixing slot, and then insert the single-phase electric energy meter into the terminal in the plug, In order to complete the operation of replacing the energy meter without power failure.

Corresponding to the single-phase electric energy meter connector, the present invention also provides a short-circuit assembly with a short-circuit electricity metering function. The short-circuit assembly includes a plug-in, a connecting wire, and an electric energy meter for measuring short-circuit electricity. The plug-in includes a banana plug , and a wire connector connected to the banana plug;

An axial groove is arranged at the front of the banana plug, a tightening area is provided at the tail of the banana plug, and a protrusion is provided on the end face of the tightening area; at the front end of the wire connector A fixing plane is provided, and a fixing hole for the protrusion to pass is arranged on the fixing plane, and the fixing hole and the protrusion adopt a hard crimp fit;

A wiring hole for connecting wires to be welded and fixed is provided on the rear end surface of the wire connector.

In practice, as shown in Figure 7, the banana plug 4 is divided into a front part and a rear part, and the cross section of the front part is circular. 4 is provided with an axial groove 41 in the axial direction, and the typical axial groove is a cross-sectional groove. Considering the specific usage scenario, the slot width of the groove is at least 0.5mm to ensure a certain degree of flexibility in a small enough space.

In order to facilitate the banana plug 4 to be screwed onto the wire connector 5, a tightening area 42 is provided at the tail of the banana plug 1, and a protrusion 43 is provided on the end face of the tightening area 42, and the protrusion 43 is used for connecting with the wire connector 5. The wire connector 5 is connected.

The cross-section of the tail tightening area 42 of the banana plug 4 is set as a regular N-gon, N≥4, considering the type of tool used in the actual installation environment, the cross-section of the rear is set as a regular hexagon, so as to improve Ease of installation.

In order to realize the tight connection between the banana plug 4 and the wire connector 5, a protrusion 43 is provided at the tail of the banana plug 4, as shown in Figure 8, a fixed plane 51 is provided at the front end of the wire connector 5, and a fixed plane 51 is arranged on the fixed plane. 51 is provided with a fixing hole 52, so that by directly inserting the protrusion 43 at the tail end of the banana plug 4 into the fixing hole 52, the relative fixing of the banana plug 4 and the wire connector 5 can be realized.

In addition to being provided with a fixed area 51 connected to the banana plug 4 on the wire connector 5, a fixed area 53 is also provided. Similar to the tail structure of the banana plug 4, the cross section of the fixed area is also a regular polygon, considering the actual installation. The type of tools used in the environment, the cross-section of the fixed area is set to a regular hexagon, so as to improve the convenience of actual installation.

Wiring holes 54 are provided in the tightening area, which are used to weld the connecting wire and the wire connector 5 together, so that when the wire connector 5 and the banana plug 4 are screwed together, the conduction between the plug and the connecting wire is realized, and finally Cooperate with the electric energy meter connector to realize the operation of replacing the electric energy meter without power failure. In order to enhance the tensile performance of the connecting wire, the actually used connecting wire is a double-strand wire. The appearance of the banana plug 4 and the wire connector 5 when they are combined is shown in FIG. 9 .

Optionally, the front portion includes a first cylinder with a first cross-sectional diameter, and a second cylinder with a second cross-sectional diameter, and the first cross-sectional diameter is larger than the second cross-sectional diameter.

In practice, the front part of the banana plug 4 is not a simple cylinder, but includes a first cylinder with a first cross-sectional diameter and a second cylinder with a second cross-sectional diameter. Considering that the plug needs to be plugged and pulled out during actual use, the second cross-sectional diameter of the second cylinder located in the middle of the banana plug 4 is made smaller than the first cross-sectional diameter of the first cylinder. In order to cooperate with the connecting wire and the electric energy meter connector, the diameter of the first section is lower than 6mm.

As shown in Figure 10, in order to improve the ease of use of the plug-in, the plug-in also includes an insulating part 6 installed on the outside of the plug-in for accommodating the plug-in, except for accommodating the short-circuit banana plug 4 In addition to the plug-in plug formed by the wire connector 5, the insulating part 6 also has a handle designed to have a concave part, which is convenient for the staff to perform plug-in and pull-out operations on the plug-in plug.

As shown in Figure 11, the short-circuit assembly includes a plug-in plug 01, a connecting wire 02, and a meter 03 for measuring short-circuit electricity. It is connected to the electric energy meter to be replaced, so that the electric energy meter to be replaced is short-circuited, and the electric energy meter measuring the short-circuit electric energy is measured by the electric energy that should have flowed through the electric energy meter to be replaced during the short circuit, so as to realize the effect of replacing the electric energy meter without power failure .

The invention provides a method for replacing the electric energy meter without power failure, comprising: if the operating state of the electric energy meter to be replaced installed on the connector of the single-phase electric energy meter is normal, using a short-circuit component to sequentially connect the zero wire and the live wire of the electric energy meter to be replaced; Disconnect the incoming and outgoing wires of the electric energy meter to be replaced, and remove the electric energy meter to be replaced; install the electric energy meter to be installed on the connector of the single-phase electric energy meter; Replace the historical data of the electric energy meter with the data of the short-circuit electric energy meter, and then clear the data of the short-circuit electric energy meter. By using the single-phase electric energy meter connector and the short-circuit component, the single-phase electric energy meter to be replaced can be short-circuited when replacing the electric energy meter, thereby completing the replacement of the single-phase electric energy meter on the basis of no power failure, and improving the user experience.

The serial numbers in the above embodiments are for description only, and do not represent the sequence of the components during assembly or use.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention Inside.

Claims (9)

1. do not have a power failure the method for changing single-phase electric energy meter, it is characterised in that the single-phase electric energy meter connects installed in single-phase electric energy meter On plug-in unit, connector is provided with anti-electricity-theft upset cover plate, and methods described includes：

Running status to the electric energy meter to be replaced on single-phase electric energy meter connector is checked, if running status is just Often, the zero line and live wire of electric energy meter to be replaced are connected successively using short-circuit component；

Inlet wire and the outlet of electric energy meter to be replaced are disconnected successively, remove electric energy meter to be replaced；

Electric energy meter to be installed is arranged on single-phase electric energy meter connector；

The short-circuit component being connected on live wire and zero line is removed successively, makes a copy of the historical data and short-circuit electricity of electric energy meter to be replaced The data of metering electric energy meter, then by the zeros data of short-circuit electric quantity metering electric energy meter.

2. it is according to claim 1 do not have a power failure change electric energy meter method, it is characterised in that the electric energy meter connector bag Include：

Plug, and the base coordinated with plug；The plug includes wiring hole, binding post and short circuit hole, in the wiring hole Coordinated using clearance-type with turnover wire, the binding post is coordinated with electric energy meter using clearance-type；

Electric energy meter incorporating section is provided with one end of support member, the electric energy meter incorporating section includes being arranged on the support member edge First baffle and second baffle, are provided with the fixation for fixing the plug between the first baffle and the second baffle Groove；

Wherein, two through holes are provided with the plug, fixing hole corresponding with the through hole is provided with the fixing groove.

3. it is according to claim 2 do not have a power failure change single-phase electric energy meter method, it is characterised in that in the first baffle The first projection is provided with, the second projection is provided with the second baffle, it is in cylinder that first projection is raised with described second Shape；Dismountable upset cover plate is provided with the described first raised and described second projection；Set in the electric energy meter incorporating section There is stopper corresponding with the upset cover plate.

4. it is according to claim 2 do not have a power failure change single-phase electric energy meter method, it is characterised in that in the upset cover plate Surface is provided with the groove for pasting client family label.

5. it is according to claim 2 do not have a power failure change single-phase electric energy meter method, it is characterised in that on the support member It is provided with least four fixation M5 screw holes.

6. it is according to claim 1 do not have a power failure change single-phase electric energy meter method, it is characterised in that the short-circuit component bag Include plug part, connecting wire and the short-circuit electricity electric energy meter of metering, the plug part includes banana plug, and with the banana The wire connector of plug connection；

Axial groove is provided with the front portion of the banana plug, is provided with the afterbody of the banana plug and is screwed region, described The end face for screwing region is provided with projection；Fixed pan is provided with the front end of the wire connector, on the fixed pan The fixing hole passed through for the projection is provided with, the fixing hole is raised using hard press fit with described；

The wiring hole being welded and fixed for connecting wire is provided with the rear end face of the wire connector.

7. the method for changing single-phase electric energy meter that do not have a power failure according to claim 6, it is characterised in that described anterior transversal Face is circle, and the cross section at the rear portion is n-shaped, N >=4.

8. the method for changing single-phase electric energy meter that do not have a power failure according to claim 6, it is characterised in that described anterior to include tool There are the first cylinder of the first diameter of section, and the second cylinder with the second diameter of section, first diameter of section is more than Second diameter of section.

9. the method for changing single-phase electric energy meter that do not have a power failure according to claim 6, it is characterised in that the axial groove is Section is in criss-cross groove, and the groove width of the groove is at least 0.5mm.