CN108008344A - Buckle formula three-phase four-wire electric energy meter on-spot check gauge - Google Patents
Buckle formula three-phase four-wire electric energy meter on-spot check gauge Download PDFInfo
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- CN108008344A CN108008344A CN201810052969.1A CN201810052969A CN108008344A CN 108008344 A CN108008344 A CN 108008344A CN 201810052969 A CN201810052969 A CN 201810052969A CN 108008344 A CN108008344 A CN 108008344A
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- 239000000523 sample Substances 0.000 claims abstract description 47
- 238000012795 verification Methods 0.000 claims description 31
- 230000005611 electricity Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
the invention discloses a buckle type three-phase four-wire electric energy meter on-site calibration instrument, which comprises a three-phase four-wire electric energy meter calibration instrument main body and a three-phase four-wire electric energy meter calibration circuit board arranged in the three-phase four-wire electric energy meter calibration instrument main body, wherein the three-phase four-wire electric energy meter calibration instrument main body is L-shaped, two sides of the three-phase four-wire electric energy meter calibration instrument main body are respectively provided with an adjustable connecting device for fixing a calibration instrument on a three-phase four-wire electric energy meter, the three-phase four-wire electric energy meter calibration instrument main body is provided with a display input device, the three-phase four-wire electric energy meter calibration instrument main body is provided with a voltage elastic probe set and a signal elastic probe set, the three-phase four-wire electric energy meter calibration instrument main body is provided with a current signal input set, when the three-phase four-wire electric energy meter is calibrated on site, the calibration.
Description
[technical field]
The invention belongs to measuring instrument instrument, specifically examines a kind of card for installing electric energy meter error and wiring at the scene
Button three-phase and four-line electric energy meter on-site calibrator.
[background technology]
In electric energy meter international recommendation and vertification regulation (and international and domestic standard), it is specified that the calibrating of electric energy meter in laboratory
Under the conditions of carry out.But so calibrating out electric energy meter at the scene under the conditions of show on earth howWith the presence or absence of differenceDifference
Have muchThis is a problem.Due to electric energy meter work must at the scene under the conditions of carry out, it shows reading again directly and charging
Correlation, therefore user pays much attention to the problem of whether electric energy meter field reading is correct.Therefore no matter theoretically or from practice
On, it is a major issue by extensive concern that what degree electric energy meter is accurate on earth at the scene.These are and field-checking
It is related.
Field-checking is to carry electric energy meter on-site calibrator, is accessed at the scene by the power grid where the electric energy meter of school,
Compare by school electric energy meter and tester interior electric energy reading at the same time, so as to obtain by the error of school electric energy meter.It is but existing
The shape for having electric energy meter on-site calibrator is independent design, it is impossible to is installed on tester in the space of electric energy metering box, therefore surveys
Amount voltage, electric current and when signal, need movable leadframe to connect, and when verification needs operating personnel on duty, while checking time is limited,
Make it difficult to the electric energy meter error under verification to a variety of operating conditions.
[content of the invention]
The invention overcomes the shortcomings of the above-mentioned technology and provides a kind of buckle-type three-phase and four-line electric energy meter on-site calibrator,
During field-checking three-phase and four-line electric energy meter, tester need to be only connected to by the three-phase and four-line electric energy meter of school by being buckled so that
It is on duty without operating personnel during field-checking, and checking time is unrestricted, therefore the three-phase under a variety of operating conditions can be verified
Four line electric energy meter errors.
To achieve the above object, present invention employs following technical proposal：
A kind of buckle-type three-phase and four-line electric energy meter on-site calibrator, include three-phase and four-line powermeter verification instrumeter main body 1 with
And the three-phase and four-line electrical energy meter calibration circuit board in three-phase and four-line powermeter verification instrumeter main body 1 is arranged at, the three-phase and four-line electricity
Energy table tester main body 1 is L-type, and 1 both sides of three-phase and four-line powermeter verification instrumeter main body, which are respectively equipped with, is fixed on tester
Adjustable connecting device 2 on three-phase and four-line electric energy meter, the three-phase and four-line powermeter verification instrumeter main body 1 are equipped with display input and set
Standby 3, the three-phase and four-line powermeter verification instrumeter main body 1 is equipped with the voltage contacted with three-phase and four-line electric energy meter phase terminal terminal
Elastic probe group 4 and three-phase and four-line electric meter signal output terminal activation signal elastic probe group 5, the three-phase and four-line electric energy
Table tester main body 1 is equipped with current signal input group 6, and the current signal input group 6 includes and three-phase and four-line electric energy meter
The Ia current signals input interface of Ia+ electric currents input line connection, the Ib electricity being connected with three-phase and four-line electric energy meter Ib+ electric current input lines
Stream signal input interface, the Ic current signal input interfaces being connected with three-phase and four-line electric energy meter Ic+ electric current input lines.
The voltage elastic probe group 4 includes the Ua phase lines electricity contacted with three-phase and four-line electric energy meter Ua phase terminal terminals
Compression elasticity probe, the Ub phases line voltages elastic probe and three-phase and four-line contacted with three-phase and four-line electric energy meter Ub phase terminal terminals
The Uc phases line voltages elastic probe of electric energy meter Uc phase terminals terminal contact, connect with three-phase and four-line electric energy meter Un phase terminal terminals
Tactile Un phases line voltage elastic probes, the signal elasticity probe groups 5 include pulse output active with three-phase and four-line electric energy meter
The active pulse input signal elastic probe of signal terminal contact, connect with the idle pulse output signals terminal of three-phase and four-line electric energy meter
Tactile idle pulse input signal elastic probe, 485 signals contacted with 485 signal terminal of three-phase and four-line electric energy meter elasticity are visited
Pin, the clock signal elastic probe contacted with three-phase and four-line clock of power meter signal terminal.
The adjustable connecting device 2 includes 7 He of zig-zag type contiguous block that lower end can be inserted into three-phase and four-line electric energy meter bottom
The engaging lug 8 being arranged in three-phase and four-line powermeter verification instrumeter main body 1, between 7 upper end of engaging lug 8 and zig-zag type contiguous block
Connected by connecting rod 9.
7 upper end of zig-zag type contiguous block is equipped with threaded hole, and the connecting rod 9 is the screw thread being threadedly coupled with threaded hole
Bar.
7 upper end of zig-zag type contiguous block, which is equipped with, makes the through hole that connecting rod 9 passes through, and the connecting rod 8 is equipped with chamfer
Lance tooth group 10, the zig-zag type contiguous block 6 are equipped with the elastic card for being used for being fastened with chamfer lance tooth group 10
Button 11.
The connecting rod 9 is cylinder or square column type.
The display input equipment 3 is operation touch-screen or keyboard ＆ display screen.
Remote communication module is set to realize remote verification on the three-phase and four-line electrical energy meter calibration circuit board.
The beneficial effects of the invention are as follows：
Tester main body of the present invention designs for L-type, can be made full use of with being clamped by school three-phase and four-line electric energy meter close and firm
Space after electric energy meter installation in electricity box, tester are buckled in and can be closed door of meter casing after the three-phase and four-line electric energy meter of school, plus envelope
Print, and can cover by school three-phase and four-line electric energy meter connection terminal knob box, tester is voluntarily run, field-checking is without operator
Member is on duty, thus checking time is unrestricted, can verify the three-phase and four-line electric energy meter error under a variety of operating conditions；School of the present invention
Instrument is tested directly to be buckled in by the three-phase and four-line electric energy meter of school, and by elastic probe directly with three-phase and four-line electric energy meter phase line, zero
Line ramp, the connection of signal terminal, without voltage lead and signal lead, eliminate bothering and improving verification electricity for wiring
The security of energy table.
[brief description of the drawings]
Fig. 1 snaps connection one schematic diagram of embodiment for tester main body of the present invention with three-phase and four-line electric energy meter；
Fig. 2 is tester main body side view of the present invention；
Fig. 3 is that the adjustable connecting device embodiment two that tester main body of the present invention is snapped connection with three-phase and four-line electric energy meter is shown
It is intended to；
Fig. 4 is part A enlarged drawing in Fig. 3.
[embodiment]
It is described in further detail below in conjunction with the accompanying drawings with embodiments of the present invention：
Embodiment one：
As depicted in figs. 1 and 2, a kind of buckle-type three-phase and four-line electric energy meter on-site calibrator, includes three-phase and four-line electric energy
Table tester main body 1 and the three-phase and four-line electrical energy meter calibration circuit board being arranged in three-phase and four-line powermeter verification instrumeter main body 1,
The three-phase and four-line powermeter verification instrumeter main body 1 is L-type, easy to which three-phase and four-line powermeter verification instrumeter main body 1 is buckled in three-phase
On four line electric energy meters, and make full use of the space in electric energy meter electricity box so that after three-phase and four-line powermeter verification instrumeter main body 1 is installed
Also door of meter casing can be closed, 1 both sides of three-phase and four-line powermeter verification instrumeter main body are respectively equipped with three-phase and four-line electrical energy meter calibration
Instrument is fixed on the adjustable connecting device 2 on three-phase and four-line electric energy meter, and the three-phase and four-line powermeter verification instrumeter main body 1 is equipped with aobvious
Show input equipment 3, the display input equipment 3 is operation touch-screen or keyboard ＆ display screen, the three-phase and four-line electrical energy meter calibration
Instrument main body 1 is equipped with the voltage elastic probe group 4 contacted with three-phase and four-line electric energy meter phase terminal terminal and three-phase and four-line electric energy
Table signal output terminal activation signal elastic probe group 5, the three-phase and four-line powermeter verification instrumeter main body 1 is equipped with current signal
Input group 6, the current signal input group 6 include the Ia electric currents letter being connected with three-phase and four-line electric energy meter Ia+ electric current input lines
Number input interface, the Ib current signals input interface being connected with three-phase and four-line electric energy meter Ib+ electric current input lines, with three-phase and four-line electricity
The Ic current signal input interfaces of energy Table I c+ electric currents input line connection.
The three-phase and four-line electric energy meter be equipped with Ua phase terminals terminal, Ub phase terminals terminal, Uc phase terminals terminal,
Un phase terminals terminal, active pulse output signals terminal, idle pulse output signals terminal, 485 signal terminals and clock
Signal terminal, the voltage elastic probe group 4 include the Ua phase lines contacted with three-phase and four-line electric energy meter Ua phase terminal terminals
Voltage elastic probe, the Ub phases line voltages elastic probe contacted with three-phase and four-line electric energy meter Ub phase terminal terminals and three-phase four
The Uc phases line voltages elastic probe and three-phase and four-line electric energy meter Un phase terminal terminals of line electric energy meter Uc phase terminals terminal contact
The Un phases line voltage elastic probes of contact, the signal elasticity probe groups 5 include defeated with the active pulse of three-phase and four-line electric energy meter
Go out the active pulse input signal elastic probe and the idle pulse output signals terminal of three-phase and four-line electric energy meter of signal terminal contact
The idle pulse input signal elastic probe of contact, 485 signals contacted with 485 signal terminal of three-phase and four-line electric energy meter elasticity are visited
Pin, the clock signal elastic probe contacted with three-phase and four-line clock of power meter signal terminal.
The adjustable connecting device 2 includes 7 He of zig-zag type contiguous block that lower end can be inserted into three-phase and four-line electric energy meter bottom
The engaging lug 8 being arranged in three-phase and four-line powermeter verification instrumeter main body 1, between 7 upper end of engaging lug 8 and zig-zag type contiguous block
Connected by connecting rod 9, the 7 another upper end of zig-zag type contiguous block is equipped with threaded hole, and the connecting rod 9 is to connect with threaded hole screw thread
The threaded rod connect.
In use, removing three-phase and four-line connection box of electric energy meter terminal box lid, three-phase and four-line powermeter verification instrumeter main body 1 is buckled in
On electric energy meter, make Ua phases line voltages elastic probe, Ub phases line voltages elastic probe, Uc phase lines electricity in voltage elastic probe group 4
Compression elasticity probe, Un phases line voltages elastic probe Ua phase terminals terminal, the Ub phase terminals with three-phase and four-line electric energy meter respectively
Terminal, Uc phase terminals terminal, the contact of Un phase terminals terminal, while make the active pulse input in signal elasticity probe groups 5
Signal elastic probe, idle pulse input signal elastic probe, 485 signal elastic probes, clock signal elastic probe respectively with
The active pulse output signals terminal of three-phase and four-line electric energy meter, idle pulse output signals terminal, 485 signal terminals, clock signal
Terminal contacts；Then by 7 lower end of zig-zag type contiguous block insertion three-phase and four-line electric energy meter bottom, and by being stuck in three-phase and four-line electric energy meter
Connecting rod 9 on 1 engaging lug 8 of tester main body connects zig-zag type contiguous block 7, and connecting rod 9 is to connect with threaded hole screw thread
Connect, three-phase and four-line powermeter verification instrumeter main body 1 can be buckled in after connecting rod 9 is tightened on three-phase and four-line electric energy meter, then lead to
Cross Ia+ electric currents input line respectively in three-phase and four-line electric energy meter of two split core type current transformers or Current Transformer, Ib+ electric currents
In input line, Ic+ electric current input lines, its signal is respectively connected to Ia current signals input interface in current signal input group 6,
Ib current signals input interface, Ic current signals input interface complete the installation of three-phase and four-line powermeter verification instrumeter main body 1 simultaneously
It can carry out the field-checking of three-phase and four-line electric energy meter.
At this time, three-phase and four-line powermeter verification instrumeter main body 1 does not cover electric energy meter display screen 12, does not influence live copy reading by school
Three-phase and four-line electric energy meter, while on three-phase and four-line electrical energy meter calibration circuit board remote communication module can also be set to realize long-range school
Test.
The embodiment two of adjustable connecting device 2：
As shown in Figure 3 and Figure 4, such as 7 upper end of zig-zag type contiguous block of adjustable connecting device 2, which is equipped with, passes through connecting rod 9
Through hole, the connecting rod 8 is equipped with chamfer lance tooth group 10, the zig-zag type contiguous block 7 be equipped be used for it is straight
The Elastic buckle 11 that angle lance tooth group 10 is fastened, wherein the connecting rod 9 is cylinder or square column type.
During buckle, the upper end of zig-zag type contiguous block 7, cylindrical type or square column of the thumb pressure with cap need to be only lived with finger pad
Shape connecting rod 9,11 upper end of Elastic buckle are fixed in chamfer lance tooth group 10 referring to enlarged drawing A, so that by three-phase
Four line powermeter verification instrumeter main bodys 1 are buckled on single-phase electric energy meter, only need to be by the operating handle that releases of Elastic buckle 11 when removing
112 pressures can unclamp.
The foregoing is merely the embodiment of the present invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within any modification, equivalent substitution or the improvement made etc., should all be included in the protection scope of the present invention.
Claims (8)
- A kind of 1. buckle-type three-phase and four-line electric energy meter on-site calibrator, it is characterised in that：Include three-phase and four-line electrical energy meter calibration Instrument main body (1) and the three-phase and four-line electrical energy meter calibration circuit board being arranged in three-phase and four-line powermeter verification instrumeter main body (1), institute It is L-type to state three-phase and four-line powermeter verification instrumeter main body (1), and three-phase and four-line powermeter verification instrumeter main body (1) both sides are set respectively Have the adjustable connecting device (2) tester being fixed on three-phase and four-line electric energy meter, the three-phase and four-line powermeter verification instrumeter master Body (1) is equipped with display input equipment (3), and the three-phase and four-line powermeter verification instrumeter main body (1) is equipped with and three-phase and four-line electricity The voltage elastic probe group (4) and three-phase and four-line electric meter signal output terminal activation signal of energy table phase terminal terminal contact Elastic probe group (5), the three-phase and four-line powermeter verification instrumeter main body (1) are equipped with current signal input group (6), the electric current Signal input group (6) includes the Ia current signals input interface and three being connected with three-phase and four-line electric energy meter Ia+ electric current input lines The Ib current signals input interface and three-phase and four-line electric energy meter Ic+ electric currents of four line electric energy meter Ib+ electric currents input line of phase connection input The Ic current signal input interfaces of line connection.
- A kind of 2. buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 1, it is characterised in that：The electricity Compression elasticity probe groups (4) include contacted with three-phase and four-line electric energy meter Ua phase terminal terminals Ua phases line voltages elastic probe, The Ub phases line voltages elastic probe and three-phase and four-line electric energy meter Uc phase lines contacted with three-phase and four-line electric energy meter Ub phase terminal terminals The Uc phases line voltages elastic probe of ramp contact, the Un phase lines electricity contacted with three-phase and four-line electric energy meter Un phase terminal terminals Compression elasticity probe, the signal elasticity probe groups (5) include to be connect with the active pulse output signals terminal of three-phase and four-line electric energy meter Tactile active pulse input signal elastic probe, the idle arteries and veins contacted with the idle pulse output signals terminal of three-phase and four-line electric energy meter Rush input signal elastic probe, the 485 signal elastic probes contacted with 485 signal terminal of three-phase and four-line electric energy meter and three-phase four The clock signal elastic probe of line clock of power meter signal terminal contact.
- A kind of 3. buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 1, it is characterised in that：It is described can Adjust attachment device (2) to include lower end to can be inserted into the zig-zag type contiguous block (7) of three-phase and four-line electric energy meter bottom and be arranged at three-phase Engaging lug (8) in four line powermeter verification instrumeter main bodys (1), leads between the engaging lug (8) and zig-zag type contiguous block (7) upper end Cross connecting rod (9) connection.
- A kind of 4. buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 1, it is characterised in that：It is described it Font contiguous block (7) upper end is equipped with threaded hole, and the connecting rod (9) is the threaded rod being threadedly coupled with threaded hole.
- A kind of 5. buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 1, it is characterised in that：It is described it Font contiguous block (7) upper end, which is equipped with, makes the through hole that connecting rod (9) passes through, and the connecting rod (8) is equipped with chamfer lance tooth Group (10), the zig-zag type contiguous block (6) are equipped with the Elastic buckle for being used for being fastened with chamfer lance tooth group (10) (11)。
- A kind of 6. buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 4, it is characterised in that：The company Extension bar (9) is cylinder or square column type.
- A kind of 7. buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 1, it is characterised in that：It is described aobvious It is operation touch-screen or keyboard ＆ display screen to show input equipment (3).
- A kind of 8. buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 1, it is characterised in that：Described three Remote communication module is set to realize remote verification on four line electrical energy meter calibration circuit board of phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052969.1A CN108008344A (en) | 2018-01-19 | 2018-01-19 | Buckle formula three-phase four-wire electric energy meter on-spot check gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052969.1A CN108008344A (en) | 2018-01-19 | 2018-01-19 | Buckle formula three-phase four-wire electric energy meter on-spot check gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108008344A true CN108008344A (en) | 2018-05-08 |
Family
ID=62050569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810052969.1A Pending CN108008344A (en) | 2018-01-19 | 2018-01-19 | Buckle formula three-phase four-wire electric energy meter on-spot check gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108008344A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147559A (en) * | 2019-06-26 | 2020-12-29 | 浙江共同电子科技有限公司 | Unified field calibration method based on three-phase three-wire electric energy meter and three-phase four-wire electric energy meter |
| CN112147565A (en) * | 2020-09-24 | 2020-12-29 | 国网山东省电力公司临沂供电公司 | Fool type electric energy meter on-site check meter |
| CN114089245A (en) * | 2021-11-22 | 2022-02-25 | 广东电网有限责任公司广州供电局 | Meter checking instrument |
| CN115327468A (en) * | 2022-08-03 | 2022-11-11 | 嵘顺仪器仪表(泗阳)有限公司 | Intelligent electric energy meter calibration equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147559A (en) * | 2019-06-26 | 2020-12-29 | 浙江共同电子科技有限公司 | Unified field calibration method based on three-phase three-wire electric energy meter and three-phase four-wire electric energy meter |
| CN112147565A (en) * | 2020-09-24 | 2020-12-29 | 国网山东省电力公司临沂供电公司 | Fool type electric energy meter on-site check meter |
| CN114089245A (en) * | 2021-11-22 | 2022-02-25 | 广东电网有限责任公司广州供电局 | Meter checking instrument |
| CN115327468A (en) * | 2022-08-03 | 2022-11-11 | 嵘顺仪器仪表(泗阳)有限公司 | Intelligent electric energy meter calibration equipment |
| CN115327468B (en) * | 2022-08-03 | 2023-10-03 | 嵘顺仪器仪表(泗阳)有限公司 | Intelligent ammeter check-out set |
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