CN217112465U - Mutual inductance type three-phase uninterrupted meter-changing short-circuit tool - Google Patents
Mutual inductance type three-phase uninterrupted meter-changing short-circuit tool Download PDFInfo
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- CN217112465U CN217112465U CN202220344471.4U CN202220344471U CN217112465U CN 217112465 U CN217112465 U CN 217112465U CN 202220344471 U CN202220344471 U CN 202220344471U CN 217112465 U CN217112465 U CN 217112465U
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Abstract
The utility model discloses a mutual inductance formula three-phase of simple and easy type does not have a power failure and trades table short circuit instrument, include: the intelligent control system comprises an electric energy meter, a puncture deconcentrator, a short-circuit wire I, a short-circuit wire II, a short-circuit wire III, a power wire, an audible and visual alarm, an on-off indicator lamp, an air switch and a PCB control panel, wherein the audible and visual alarm and the on-off indicator lamp are arranged on the upper surface of the PCB control panel; the PCB control panel is connected with a short-circuit wire I, a short-circuit wire II, a short-circuit wire III and power lines, and the power lines are provided with two groups. The device has the advantages that wrong wiring and short circuit events are prevented from occurring, the safety and reliability coefficient of the device is improved, whether the short circuit of a current path is normal or not is judged, green indicating lamps are used for indicating, all the short circuits are integrated in one device, the operation process is safe, reliable, convenient and fast, wrong wiring can be effectively avoided, and the circuit is opened to carry out normal uninterrupted meter replacement.
Description
Technical Field
The utility model relates to an electrical equipment technical field specifically is a mutual inductance formula three-phase does not have a power failure and trades table short circuit instrument of simple and easy type.
Background
Aiming at the requirements of various users on power supply reliability, uninterrupted operation becomes very important work content of national power grids and southern power grids. The development of marketing measurement uninterrupted power operation is one of the most direct and effective measures for improving the power supply reliability. According to the principle of practicability, intelligent uninterrupted meter replacement is combined with field practice and basic principles, electric energy metering, tools and operation methods are integrated, the requirement of uninterrupted operation on a user side is met, and uninterrupted replacement and maintenance of the electric energy meter are achieved. Aiming at various abnormal metering conditions such as black screen, screen splash, dead halt, communication faults and the like which easily occur when the market electric energy meter is used for a long time and electronic components are aged, the electric energy cannot be accurately metered, and replacement, detection and batch periodic rotation are required to be carried out in time.
The traditional electric energy meter replacement mode is carried out in a power failure mode, the work flow comprises 7 steps of posting bulletins, recording bottom reading of the electric energy meter, informing users, power failure, meter disassembling and assembling, checking and verifying, power transmission and the like, the defects of multiple power failure disassembling and assembling steps, long consumed time and the like exist, and the normal power utilization of a three-phase power supply large user is influenced to a great extent. The ammeter user requires highly to the power consumption reliability, and power supply system can not have the actual conditions such as power failure, and the change of electric energy meter is accomplished in the assurance short time to the uninterrupted power supply change table system that provides, guarantees not to leak the meter electric quantity with technical means moreover in the change process.
The current user changing mode is shown in fig. 3: and informing a user of power failure and meter replacement, then connecting the puncture deconcentrator 2 in parallel with the electric energy meter 1 for incoming line, and then directly connecting the leads 3, 4 and 5 to short-circuit the current CT loop.
In the process of replacing the mutual inductance type three-phase electric energy meter 1 in an electrified way, each phase CT must be in short circuit, and the situation that the safety of people and equipment cannot be guaranteed due to the fact that high voltage is generated when the CT is in an open circuit is prevented. The CT short circuit tool adopted at present is directly short-circuited through one lead 3, 4 and 5, and if the lead is mistakenly connected to a voltage loop by misoperation, a short circuit accident can be caused.
Therefore, a simple mutual inductance type three-phase uninterrupted meter-changing short-circuit tool is provided so as to solve the problems mentioned above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an interactive formula three-phase of simple and easy type does not have a power failure and trades table short circuit instrument to need the outage when solving the change ammeter that proposes in the above-mentioned background art, and the short circuit instrument causes the problem of short circuit accident easily.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mutual inductance formula three-phase does not have a power failure and trades table short circuit instrument of simple and easy type, includes: the intelligent control system comprises an electric energy meter, a puncture deconcentrator, a short-circuit wire I, a short-circuit wire II, a short-circuit wire III, a power wire, an audible and visual alarm, an on-off indicator lamp, an air switch and a PCB control panel, wherein the audible and visual alarm and the on-off indicator lamp are arranged on the upper surface of the PCB control panel;
the PCB control panel is connected with a short-circuit wire I, a short-circuit wire II, a short-circuit wire III and power lines, and the power lines are provided with two groups.
Preferably, the lower end of the electric energy meter is provided with a plurality of puncture deconcentrators, and the puncture deconcentrators are fixedly provided with a short-circuit wire I, a short-circuit wire II, a short-circuit wire III and a power line.
Preferably, the audible and visual alarm and the on-off indicating lamp are respectively provided with three.
Preferably, the air switch is positioned between the audible and visual alarm and the on-off indicating lamp, and is fixedly installed on the upper surface of the PCB control board.
Preferably, the audible and visual alarm and the on-off indicator lamp are symmetrically designed.
Compared with the prior art, the beneficial effects of the utility model are that: the device has the function of changing the meter without power interruption, and solves the problem that short-circuit accidents are easily caused by short-circuit tools;
1. the short-circuit line I, the short-circuit line II, the short-circuit line III and the power line are used as an input signal and a power supply, the PCB control panel judges the states of an audible and visual alarm and an on-off indicator lamp according to the input signal and the power supply, an alarm is given out in a current loop voltage detection and audible and visual alarm mode to prevent misoperation, after wrong wiring is eliminated, the short-circuit line of the loop is communicated through an air switch, the unit can effectively ensure the operation safety, the power supply puncture feeder line adopts an air switch to switch on and off each phase current, the wrong wiring and short-circuit events are prevented from occurring, the safety and reliability coefficient of the current path is improved, whether the short circuit of the current path is normal or not is provided with green indicator lamp indication, all short circuits are integrated in one device, the operation process is safe, reliable, convenient and fast, wrong wiring can be effectively avoided, and the circuit is opened;
2. after the puncture deconcentrator is fixed to the electric energy meter inlet wire, after the short-circuit wire I, the short-circuit wire II, the short-circuit wire III and the power line are inserted into the puncture deconcentrator, under the condition that the audible and visual alarm and the on-off indicator lamp are normal, the normal uninterrupted meter replacement work is carried out after the air switch is turned on.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is a schematic diagram of a prior art structure of the present invention.
In the figure: 1. an electric energy meter; 2. puncturing the deconcentrator; 3. a short connecting wire I; 4. a short-circuit wire II; 5. a short-circuit wire III; 6. a power line; 7. an audible and visual alarm; 8. turning on and off the indicator light; 9. an air switch; 10. PCB control panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a mutual inductance formula three-phase uninterrupted power supply trades table short circuit instrument of simple and easy type, includes: the air switch comprises a short-circuit wire I3, a short-circuit wire II 4, a short-circuit wire III 5, a power line 6, an audible and visual alarm 7, an on-off indicator lamp 8, an air switch 9 and a PCB control panel 10, wherein the audible and visual alarm 7 and the on-off indicator lamp 8 are arranged on the upper surface of the PCB control panel 10, the audible and visual alarm 7 and the on-off indicator lamp 8 are symmetrically designed, the audible and visual alarm 7 and the on-off indicator lamp 8 are respectively provided in three numbers, the air switch 9 is positioned between the audible and visual alarm 7 and the on-off indicator lamp 8, and the air switch 9 is fixedly installed on the upper surface of the PCB control panel 10;
the PCB control board 10 is connected with a short-circuit wire I3, a short-circuit wire II 4, a short-circuit wire III 5 and power lines 6, and the power lines 6 are provided with two groups.
The working principle is as follows: the first short-circuit wire 3, the second short-circuit wire 4, the third short-circuit wire 5 and the power line 6 are used as input signals and power supplies, and the PCB control board 10 judges the states of the audible and visual alarm 7 and the on-off indicator 8 according to the input signals and the power supplies.
Example two
Referring to fig. 2, the present invention provides a technical solution: the utility model provides a mutual inductance formula three-phase uninterrupted power supply trades table short circuit instrument of simple and easy type, still includes on the basis of embodiment one: the electric energy meter comprises an electric energy meter 1 and a puncture deconcentrator 2, wherein the lower end of the electric energy meter 1 is provided with the puncture deconcentrator 2, and a short-circuit wire I3, a short-circuit wire II 4, a short-circuit wire III 5 and a power line 6 are fixedly arranged on the puncture deconcentrator 2.
The working principle is as follows: after the puncture deconcentrator 2 is fixed to the inlet wire of the electric energy meter 1, after the short-circuit wire I3, the short-circuit wire II 4, the short-circuit wire III 5 and the power line 6 are inserted into the puncture deconcentrator 2, under the condition that the audible and visual alarm 7 and the on-off indicator light 8 are normal, the normal meter replacement work is carried out after the air switch 9 is turned on.
Those not described in detail in this specification are within the skill of the art.
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 mutual inductance formula three-phase does not have a power failure and trades table short circuit instrument of simple and easy type which characterized in that: the method comprises the following steps: the intelligent control system comprises an electric energy meter, a puncture deconcentrator, a short-circuit wire I, a short-circuit wire II, a short-circuit wire III, a power wire, an audible and visual alarm, an on-off indicator lamp, an air switch and a PCB control panel, wherein the audible and visual alarm and the on-off indicator lamp are arranged on the upper surface of the PCB control panel;
the PCB control panel is connected with a short-circuit wire I, a short-circuit wire II, a short-circuit wire III and power lines, and the power lines are provided with two groups.
2. The simple mutual inductance type three-phase uninterrupted meter change short-circuit tool as claimed in claim 1, wherein the lower end of the electric energy meter is provided with a plurality of puncture deconcentrators, and the puncture deconcentrators are fixedly provided with a first short-circuit wire, a second short-circuit wire, a third short-circuit wire and a power line.
3. The simple mutual inductance type three-phase uninterrupted meter change short-circuit tool as claimed in claim 1, wherein there are three audible and visual alarms and on-off indicator lights.
4. The simple mutual inductance type three-phase uninterrupted meter change short-circuit tool as claimed in claim 1, wherein the air switch is located between the audible and visual alarm and the on-off indicator light, and the air switch is fixedly mounted on the upper surface of the PCB control board.
5. The simple mutual inductance type three-phase uninterrupted meter change short-circuit tool as claimed in claim 1, wherein the audible and visual alarm and the on-off indicator are symmetrically designed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220344471.4U CN217112465U (en) | 2022-02-21 | 2022-02-21 | Mutual inductance type three-phase uninterrupted meter-changing short-circuit tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220344471.4U CN217112465U (en) | 2022-02-21 | 2022-02-21 | Mutual inductance type three-phase uninterrupted meter-changing short-circuit tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217112465U true CN217112465U (en) | 2022-08-02 |
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ID=82598068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220344471.4U Active CN217112465U (en) | 2022-02-21 | 2022-02-21 | Mutual inductance type three-phase uninterrupted meter-changing short-circuit tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217112465U (en) |
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2022
- 2022-02-21 CN CN202220344471.4U patent/CN217112465U/en active Active
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