CN104569530A - Rapid three-phase electronic type electric energy meter calibration crimp connection device and calibration method thereof - Google Patents
Rapid three-phase electronic type electric energy meter calibration crimp connection device and calibration method thereof Download PDFInfo
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- CN104569530A CN104569530A CN201410848471.8A CN201410848471A CN104569530A CN 104569530 A CN104569530 A CN 104569530A CN 201410848471 A CN201410848471 A CN 201410848471A CN 104569530 A CN104569530 A CN 104569530A
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Abstract
The invention belongs to the technical field of three-phase electronic type electric energy meter automation, and particularly relates to a rapid three-phase electronic type electric energy meter calibration crimp connection device and a calibration method thereof. Wheels are arranged at the bottom of the crimp connection device, a workbench is arranged on an electric control box supported through the wheels, a meter rack is vertically arranged on the workbench, multiple layers of meter hanging plates are arranged on the meter rack in an inclined mode, multiple unit meter plates are arranged on the surface of each meter hanging plate, left blocks and right blocks are arranged on the edges of the left side and the right side of each unit meter plate, and a control motor is arranged on the back face of each unit meter plate; a hollow plane groove is formed in the surface of each unit meter plate, a sliding floor is arranged in the hollow plane groove, and a three-phase electronic type electric energy meter is arranged on the surface of the sliding floor; left sliding grooves are formed between the sliding floor and the left blocks, right sliding grooves are formed between the sliding floor and the right blocks, a device meter bracket is arranged between the bottom edge of the unit meter plate and the bottom edge of the hollow plane groove, and crimp terminals are arranged on the device meter bracket.
Description
Technical field
The invention belongs to three phases electronic energy meter technical field of automation, be specifically related to a kind of calibrating compression bonding apparatus of three phases electronic energy meter fast and calibration method thereof.
Background technology
Along with developing rapidly of power technology industry, the generally use of electronic electric energy meter, in the calibrating of three phases electronic energy meter detects, there is wiring difficulty large, reliability is not high, affects calibrating efficiency and the accuracy problems of electric energy meter.The calibrating of traditional three-phase electric energy meter is all be installed on electric energy meter calibrating apparatus by manual operation table one table, also wants the dismounting wiring of a table one table after calibrating terminates.Three phases electronic energy meter test connection reaches 20 (comprising voltage, electric current, pulse and Function detection line), the craft of testing person one one is all needed to access and guarantee that wiring is correct, otherwise assay can be affected because of wiring error, function is caused to detect, the data that the accuracy of electric energy meter cannot be examined and determine or examine and determine can not embody, operation easier is large and waste time and energy, and also can cause the faults such as short circuit burning table time serious.Examine and determine 24 common three-phase and four-line electronic electric energy meters for 24 epi-position equipment for three-phase electrical energy meters, from game clock pin mounts cover table wiring, complete whole process of taking out stitches to calibrating at least needs 3 hours, and dress table wiring and tear table open and just occupy 1 hour; Therefore automatic crimping device and calibration method have become the gordian technique of three phases electronic energy meter automation development.
Summary of the invention
Object of the present invention is the problems referred to above solving prior art, provide a kind of fast, the quick crimping of stable, efficient, high reliability, accurately to locate, reach the object three phases electronic energy meter calibrating compression bonding apparatus and calibration method thereof that shorten the three phases electronic energy meter calibrating lay time, to achieve these goals, the technical solution used in the present invention is as follows:
A kind of calibrating of three phases electronic energy meter fast compression bonding apparatus, it is characterized in that: described compression bonding apparatus bottom is provided with wheel, the electric control box of wheel support is provided with worktable, vertically dial framework is installed on the table, described dial framework surface thereof is provided with some layers of meter hanging board, described meter hanging board surface is provided with several unit dash boards, edge, the described unit dash board left and right sides is provided with left block, right block and be arranged on the control motor at the back side, unit dash board surface also has the planar slot of depression, sliding floor is provided with in the planar slot of depression, the upper surface of described sliding floor is provided with three phases electronic energy meter, sliding floor and left block, left chute and right rail is provided with between right block, the holder of device table is also provided with between the edge, planar slot lower end of described edge, unit dash board lower end and depression, the holder of described device table is provided with crimp type terminal.
Concrete, described three phases electronic energy meter is provided with the ramp matched with the crimp type terminal in the holder of device table, and the ramp of described three phases electronic energy meter closely crimps with the crimp type terminal in the holder of device table and is connected.
The inside of the crimp type terminal in the holder of described device table is hollow cavity or solid steel probe and its inner or outside surface is provided with temperature sensor.
Further, in the planar slot of described device table holder correspondence depression, upper-center is provided with guide rail, the piston of the control motor-driven cylinder at the described meter hanging board back side also drives guide rail to slide up and down, and the three phases electronic energy meter be placed on sliding floor is slidably reciprocated up and down relative to unit dash board on guide rail.
Concrete, the ramp of described three phases electronic energy meter is not less than 80N to the pressure of crimp type terminal axial compression connection.
Concrete, the some layers of meter hanging board that institute's dial framework surface thereof is installed, the angle between its dial framework vertically installed and the meter hanging board of inclination to be greater than etc. 30 °.Angle object dial framework and dash board being arranged to 30 ° is the three phases electronic energy meter difficult drop-off ensureing to wait to examine and determine, detect.
Further, described electric control box has power interface, RS485 data-interface and power knob, is provided with detecting unit in it, described in be provided with on dial framework and be provided with control knob and display screen.
Concrete, the protuberance of described left block, right block is provided with metal column, and metal column closely overlaps outward rotating elastic roller, and the outer end of left block, right block is also provided with spring.
A calibration method for quick three phases electronic energy meter calibrating compression bonding apparatus, is characterized in that: comprise the following steps:
(1), by dial framework install on the table, and then meter hanging board is arranged on dial framework and the detecting unit of mounting electrical control box;
(2), three phases electronic energy meter to be examined and determine is placed on sliding floor;
(3), power knob is started, restart control knob, then just automatically start control driven by motor sliding floor to move down, block in the upper left right rail of unit dash board inwardly shrinks, clamping three phases electronic energy meter, three phases electronic energy meter overlapped with the center line of calibrating installation and automatically locates, allowing the ramp being placed on three phases electronic energy meter to be examined and determine on sliding floor closely crimp with the crimp type terminal in the holder of device table, complete the calibrating wiring of electric energy meter.
(4), by corresponding verifying process flow three phases electronic energy meter examined and determine and detect, detecting unit accurately completes connection box of electric energy meter terminal and carries out the tight contact situation crimped with the crimp type terminal in the holder of device table, and ensure that the calibrating POL required at the vertification regulation of electric energy meter contacts well, without heating and open circuit phenomenon, during loose contact, surface in contact can generate heat;
(5) after, the calibrating of three phases electronic energy meter and detection complete, control driven by motor sliding floor to move up, block in the upper left right rail of unit dash board outwards slides and unclamps, and the ramp making to be placed on three phases electronic energy meter sliding floor examined and determine or has detected has been separated the automatic clearing of electric energy meter with the crimp type terminal in the holder of device table;
(6), by the three phases electronic energy meter examined and determine and detect take off from sliding floor, powered-down button, complete calibrating and detect operation.
Concrete, when described step (4) connection box of electric energy meter terminal and the crimp type terminal in the holder of device table carry out the loose contact closely crimped, the temperature of crimp type terminal raises and is no more than 32 DEG C, otherwise the temperature over-range pilot lamp on device can send light-operated and sound control alarm.
The present invention has following beneficial effect:
(1) one of the present invention quick three phases electronic energy meter calibrating compression bonding apparatus and calibration method thereof can realize automatic guide and seek position and accurately locate and crimp, the success ratio of wiring is high, detection is accurate, realize quick crimping that is stable, efficient, high reliability, improve three-phase electric energy meter calibrating efficiency and accuracy, to reach the object shortening the three phases electronic energy meter calibrating lay time.
(2) connection device of the present invention and calibration method, dismounting is simple, conveniently moving, detection processing ease, for three-phase electric energy meter automatic calibration accurate, reliably provide technical guarantee and support.
(3) fast, reliable, the difficult drop-off of automatic crimping device of the present invention crimping speed, separate simple to operate, substantially increase the efficiency of calibrating, reduce labour intensity, the error in minimizing work.
(4) in the present invention, after crimp type terminal crimping, when there being loose contact phenomenon, the surface of crimp type terminal can produce electric spark, surface temperature is elevated to a certain degree, then connection box of electric energy meter terminal can be separated automatically with crimp type terminal, ensure that the use safety of electric energy meter.
Accompanying drawing explanation
In order to be illustrated more clearly in example of the present invention or technical scheme of the prior art, introduce doing accompanying drawing required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is only examples more of the present invention, to those skilled in the art, do not paying under creationary prerequisite, other accompanying drawing can also obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of quick three phases electronic energy meter calibrating compression bonding apparatus of the present invention.
Fig. 2 is the side view of a kind of quick three phases electronic energy meter calibrating compression bonding apparatus of the present invention.
Fig. 3 is the structural representation of unit of the present invention dash board.
Fig. 4 is the structural representation that unit of the present invention dash board and three-phase electronic electric energy are installed.
Fig. 5 is the side view of meter hanging frame of the present invention.
Fig. 6 is the structural representation of left and right block on unit of the present invention dash board.
Fig. 7 is the structural representation that electric current of the present invention crimping electric terminal is connected with sensor.
In accompanying drawing, 1-unit dash board, 2-three phases electronic energy meter, the holder of 3-device table, 4-crimp type terminal, 5-guide rail, 6-sliding floor, the left chute of 7-, 8-right rail, the left block of 9-, the right block of 10-, 11-controls motor, 12-metal column, 13-elastic roller, 14-spring, 15-cylinder, 40-temperature sensor, 41-temperature sensor signal disposal system, 100-electric control box, 101-wheel, 102-display screen, 103-meter hanging board, 104-power knob, 105-dial framework, 106-RS485 data-interface, 107-power input interface, 108-detecting unit, 109-control knob, 110-worktable.
Embodiment
Below in conjunction with the accompanying drawing in example of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1 and Fig. 2, a kind of three phases electronic energy meter fast of the present invention calibrating compression bonding apparatus, it is characterized in that described compression bonding apparatus bottom is provided with wheel 101, the electric control box 100 that wheel 101 supports is provided with worktable 110, described electric control box 100 is provided with power input interface 107, RS485 data-interface 106 and power knob 104, detecting unit 108 is provided with in it, worktable 110 is vertically provided with dial framework 105, described dial framework 105 is provided with control knob 109 and display screen 102, on described dial framework, 105 are tiltedly provided with some layers of meter hanging board 103, angle between the dial framework 105 of vertical installation and the meter hanging board 103 tilted to be greater than etc. 30 °, described meter hanging board 103 surface is provided with several unit dash boards 1.Wherein, RS485 data-interface 106 is connected with computing machine, use computing machine and detecting unit 108 signal control linkage, use computing machine to carry out crimping and detect operation, power input interface 107 connects 220V AC power supplies, starting power knob 104 makes the startup of three phases electronic energy meter calibrating compression bonding apparatus enter duty, then use computer operation to carry out crimping to detect, display screen 102 is by the detected state information of display each unit dash board 1, bottom is provided with wheel 101 and ground has interval to be convenient to ventilation and heat, is conducive to conveniently moving simultaneously.
See Fig. 2, Fig. 3 and Fig. 4, in embodiments of the present invention, edge, described unit dash board 1 left and right sides is provided with left block 9, right block 10 and be arranged on the control motor 11 at the back side, cylinder 15, unit dash board 1 surface also has the planar slot of depression, sliding floor 6 is provided with in the planar slot of depression, the upper surface of described sliding floor 6 is provided with three phases electronic energy meter 2, the bottom inner portion of three phases electronic energy meter 2 is provided with ramp (not shown), sliding floor 6 and left block 9, left chute 7 and right rail 8 is provided with between right block 10, device table holder 3 is also provided with between the edge, planar slot lower end of described unit edge, dash board 1 lower end and depression, described device table holder 3 is provided with electric current crimping electric terminal 4, in the planar slot of described device table holder 3 correspondence depression, upper-center is provided with guide rail 5, described guide rail 5 is connected with cylinder 15, when starting control knob 109, the control motor 11 at described meter hanging board 103 back side drives the piston of cylinder 15 and drives guide rail 5 to slide up and down, the three phases electronic energy meter 2 be placed on sliding floor 6 is slidably reciprocated relative to unit dash board about 1 on guide rail 6, when three phases electronic energy meter 2 down slides, wherein, three phases electronic energy meter 2 is provided with the ramp matched with the crimp type terminal 4 in device table holder 3, ramp and the crimp type terminal 4 in device table holder 3 of described three phases electronic energy meter 2 closely crimp (grafting) when being connected, the ramp of three phases electronic energy meter is not less than 80N to the pressure of crimp type terminal 4 axial compression connection (grafting).
See Fig. 3, Fig. 4 and Fig. 5, as specific embodiments of the invention, the inside of the some sections of crimp type terminals 4 in described device table holder 3 is hollow cavity or solid steel probe and its inner or outside surface is provided with temperature sensor 40, crimp type terminal 4 is the steel probe current connection terminals adopting stainless steel to make, when crimp type terminal 4 (steel probe) inside is hollow cavity, and temperature sensor 40 is inserted in the cavity of crimp type terminal 4 (steel probe), the cavity inner wall of the outside surface of temperature sensor 40 and crimp type terminal 4 (steel probe) to be kept insulating and close contact simultaneously.The bottom end opening of the ramp of its three phases electronic energy meter 2, inner in hollow cavity, when crimp type terminal 4 (steel probe) and three phases electronic energy meter 2 ramp crimping time, crimp type terminal 4 (steel probe) and ramp coupling are socketed in the cavity of the ramp of three phases electronic energy meter 2, when crimping bad, the ramp surface of crimp type terminal 4 (steel probe) and three phases electronic energy meter 2 can generate heat, and temperature sensor 40 can gather the temperature of its crimp surface.
As most preferred embodiment of the present invention, as Fig. 5 and as shown in Figure 7, in order to when can bear crimping (grafting), the pressure of 80N does not cause electric terminal impaired, the probe close contact of 40 of sensor is adopted at the outside surface of crimp type terminal 4 (steel probe) (as in Fig. 5 in the present invention, shorter and be high current terminal in the terminal of oblique cutting half arc probe in crimp type terminal 4), the outside surface simultaneously temperature sensor 40 will popped one's head in and high current terminal outside surface keep insulating also closely pasting and contact, in the present invention, temperature sensor 40 uses three-wire system thermistor PT100, when the ramp of three phases electronic energy meter 2 closely crimps (grafting) with the high electric terminal in the crimp type terminal 4 (steel probe) in device table holder 3, if crimping (grafting) is not in place, or after crimping during loose contact, high current terminal surface in crimp type terminal 4 (steel probe) will generation current spark, the surface temperature of high current terminal is raised, the temperature of the high current terminal of collection of temperature sensor 40 is also converted to resistance change, the temperature sensor signal disposal system 41 that the change in resistance parameter that temperature sensor 40 exports exports in detecting unit 108 processes, when ramp and the crimp type terminal 4 in device table holder 3 of three phases electronic energy meter 2 closely crimp (grafting) be connected time, when the high current terminal surface heat temperature in crimp type terminal 4 (steel probe) is more than 32 DEG C, the detection signal of detecting unit 108 output temperature sensor signal processing system 41, the temperature over-range pilot lamp on compression bonding apparatus is made to send light-operated and sound control alarm instruction, now, the ramp of three phases electronic energy meter 2 is separated automatically with crimp type terminal 4 (steel probe), ensure that the safety and reliability of whole calibrating compression bonding apparatus.
See Fig. 3 and Fig. 4, in the embodiment of the present invention, when controlling motor 11 drive and making the three phases electronic energy meter 2 be placed on sliding floor 6 move around downward or upward, the left chute 7 of sliding floor 6, the left block 9 installed in right rail 8, right block 10, three phases electronic energy meter 2 on sliding floor 6 is clamped, the ramp established in three phases electronic energy meter 2 is closely crimped (grafting) accurately and reliably with the crimp type terminal 4 (steel probe) in corresponding described device table holder 3, for the ramp established in probe when the crimp type terminal 4 (steel probe) in assurance device table holder 3 crimps and three phases electronic energy meter 2, the pressure putting on crimp type terminal 4 (steel probe) axis in device table holder 3 is not less than 80N, after detection and calibrating complete, with dynamic air cylinder 15, the three phases electronic energy meter 2 be placed on sliding floor 6 is moved up by controlling motor 11, the left block 9 installed in the left chute 7 of the arranged on left and right sides of sliding floor 6 and right rail 8 and right block 10 outwards slide, three phases electronic energy meter 2 on sliding floor 6 is unclamped, and crimping (grafting) ramp that three phases electronic energy meter 2 is shown on corresponding termination carries out being separated (taking out stitches).
See Fig. 3 and Fig. 4, in embodiments of the present invention, the outer end of described left block 9, right block 10 is provided with spring 14, the inside at the position protruding upward of described left block 9, right block 10 is provided with metal column 12, the outside closely cover of metal column 12 has rotating elastic roller 13, when three phases electronic energy meter 2 slides up and down, drive roller 13 and the left and right intimate surface contact of three phases electronic energy meter 2 by the left block of spring 14 telescopic drive 9, right block 10, displacement or dislocation do not occur when three phases electronic energy meter 2 is slided up and down in left chute 7 and right rail 8.
In embodiments of the present invention, a kind of calibration method of quick three phases electronic energy meter calibrating compression bonding apparatus, comprises the following steps:
(1), by dial framework 105 be arranged on worktable 110, and then meter hanging board 103 be arranged on dial framework 105 and the detecting unit 108 of mounting electrical control box 100;
(2), three phases electronic energy meter 2 to be examined and determine is placed on sliding floor 6;
(3), start power knob 104, restart control knob 109 or start-up simulation machine carries out start detection unit 108, then just automatically starting control motor 11 drives sliding floor 6 to move down, block in the upper left right rail of meter hanging board 103 inwardly shrinks, clamping three phases electronic energy meter 2, three phases electronic energy meter 2 is overlapped with the center line of calibrating installation, the ramp of the three phases electronic energy meter 2 to be examined and determine be placed on sliding floor 6 is allowed closely to crimp (grafting) with the crimp type terminal 4 (steel probe) in device table holder 3, complete the calibrating wiring of electric energy meter.
(4), by corresponding verifying process flow three phases electronic energy meter examined and determine and detect, detecting unit 108 accurately completes the contact situation that connection box of electric energy meter terminal and the crimp type terminal 4 (steel probe) in device table holder 3 carry out tight grafting (crimping), crimp type terminal 4 (steel probe) carries out the contact situation of tight grafting (crimping), and ensure in the requirement calibrating POL contact of the vertification regulation of electric energy meter good, without heating and open circuit phenomenon, when connection box of electric energy meter terminal carries out the loose contact of tight grafting (crimping) with the crimp type terminal 4 (steel probe) in device table holder 3, high current terminal in crimp type terminal 4 (steel probe) will generate heat, when high current terminal surface heat temperature is more than 32 DEG C, temperature over-range pilot lamp on compression bonding apparatus can send light-operated and sound control alarm.
(5) after, the calibrating of three phases electronic energy meter and detection complete, controlling motor 11 drives sliding floor 6 to move up, block in left and right chute on unit dash board 1 outwards slides and unclamps, make to be placed on the ramp of three phases electronic energy meter 2 sliding floor 6 having completed calibrating or detection has been separated electric energy meter automatic clearing with the crimp type terminal 4 (steel probe) in device table holder 3, complete the calibrating wiring of electric energy meter;
(6), by the three phases electronic energy meter 2 examined and determine and detect take off from sliding floor 6, powered-down button 104, complete calibrating and detect operation.
The foregoing is only the preferred embodiment of invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a quick three phases electronic energy meter calibrating compression bonding apparatus, it is characterized in that: described compression bonding apparatus bottom is provided with wheel, the electric control box of wheel support is provided with worktable, vertically dial framework is installed on the table, described dial framework surface thereof is provided with some layers of meter hanging board, described meter hanging board surface is provided with several unit dash boards, edge, the described unit dash board left and right sides is provided with left block, right block and be arranged on the control motor at the back side, unit dash board surface also has the planar slot of depression, sliding floor is provided with in the planar slot of depression, the upper surface of described sliding floor is provided with three phases electronic energy meter, sliding floor and left block, left chute and right rail is provided with between right block, the holder of device table is also provided with between the edge, planar slot lower end of described edge, unit dash board lower end and depression, the holder of described device table is provided with crimp type terminal.
2. one according to claim 1 quick three phases electronic energy meter calibrating compression bonding apparatus, it is characterized in that: described three phases electronic energy meter is provided with the ramp matched with the crimp type terminal in the holder of device table, the ramp of described three phases electronic energy meter closely crimps with the crimp type terminal in the holder of device table and is connected.
3. one according to claim 1 and 2 quick three phases electronic energy meter calibrating compression bonding apparatus, is characterized in that: the inside of the crimp type terminal in the holder of described device table is hollow cavity or solid steel probe and its inner or outside surface is provided with temperature sensor.
4. one according to claim 1 quick three phases electronic energy meter calibrating compression bonding apparatus, it is characterized in that: in the planar slot of described device table holder correspondence depression, upper-center is provided with guide rail, the piston of the control motor-driven cylinder at the described meter hanging board back side also drives guide rail to slide up and down, and the three phases electronic energy meter be placed on sliding floor is slidably reciprocated up and down relative to unit dash board on guide rail.
5. one according to claim 1 and 2 quick three phases electronic energy meter calibrating compression bonding apparatus, is characterized in that: the ramp of described three phases electronic energy meter is not less than 80N to the pressure of crimp type terminal axial compression connection.
6. one according to claim 1 quick three phases electronic energy meter calibrating compression bonding apparatus, is characterized in that: the some layers of meter hanging board that institute's dial framework surface thereof is installed, and the angle between its dial framework vertically installed and the meter hanging board of inclination to be greater than etc. 30 °.
7. one according to claim 1 quick three phases electronic energy meter calibrating compression bonding apparatus, it is characterized in that: described electric control box has power interface, RS485 data-interface and power knob, be provided with detecting unit in it, described in be provided with on dial framework and be provided with control knob and display screen.
8. one according to claim 1 quick three phases electronic energy meter calibrating compression bonding apparatus, it is characterized in that: the protuberance of described left block, right block is provided with metal column, metal column closely overlaps outward rotating elastic roller, and the outer end of left block, right block is also provided with spring.
9. the calibration method of a kind of quick three phases electronic energy meter calibrating compression bonding apparatus according to claim 1 ~ 8 any one claim, is characterized in that: comprise the following steps:
(1), by dial framework install on the table, and then meter hanging board is arranged on dial framework and the detecting unit of mounting electrical control box;
(2), three phases electronic energy meter to be examined and determine is placed on sliding floor;
(3), power knob is started, restart control knob, then just automatically start control driven by motor sliding floor to move down, block in the upper left right rail of unit dash board inwardly shrinks, clamping three phases electronic energy meter, three phases electronic energy meter overlapped with the center line of calibrating installation and automatically locates, allowing the ramp being placed on three phases electronic energy meter to be examined and determine on sliding floor closely crimp with the crimp type terminal in the holder of device table, complete the calibrating wiring of electric energy meter;
(4), by corresponding verifying process flow three phases electronic energy meter examined and determine and detect, detecting unit accurately completes connection box of electric energy meter terminal and carries out the tight contact situation crimped with the crimp type terminal in the holder of device table, and ensure that the calibrating POL required at the vertification regulation of electric energy meter contacts well, without heating and open circuit phenomenon, during loose contact, surface in contact can generate heat;
(5) after, the calibrating of three phases electronic energy meter and detection complete, control driven by motor sliding floor to move up, block in the upper left right rail of unit dash board outwards slides and unclamps, and the ramp making to be placed on three phases electronic energy meter sliding floor examined and determine or has detected has been separated the automatic clearing of electric energy meter with the crimp type terminal in the holder of device table;
(6), by the three phases electronic energy meter examined and determine and detect take off from sliding floor, powered-down button, complete calibrating and detect operation.
10. the calibration method of a kind of quick three-phase ground electronic electric energy meter calibrating compression bonding apparatus according to claim 9, it is characterized in that: when described step (4) connection box of electric energy meter terminal and the crimp type terminal in the holder of device table carry out the loose contact closely crimped, the temperature of crimp type terminal raises and is no more than 32 DEG C, otherwise the temperature over-range pilot lamp on device can send light-operated and sound control alarm.
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| CN113947872B (en) * | 2021-10-26 | 2022-12-30 | 浙江晨泰科技股份有限公司 | Prevent that virtual from connecing and have virtual smart electric meter who connects protect function |
| CN114487979A (en) * | 2022-01-21 | 2022-05-13 | 杭州德创电子股份有限公司 | Electric energy meter detects integral type device |
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