CN207937589U - 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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- CN207937589U CN207937589U CN201820090828.4U CN201820090828U CN207937589U CN 207937589 U CN207937589 U CN 207937589U CN 201820090828 U CN201820090828 U CN 201820090828U CN 207937589 U CN207937589 U CN 207937589U
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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 10
- 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
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Abstract
the utility model discloses a buckle formula three-phase four-wire electric energy meter on-spot check gauge, including three-phase four-wire electric energy meter check gauge main part and set up the three-phase four-wire electric energy meter check gauge circuit board in three-phase four-wire electric energy meter check gauge main part, three-phase four-wire electric energy meter check gauge main part is the L type, three-phase four-wire electric energy meter check gauge main part both sides are equipped with respectively fixes the adjustable connecting device on three-phase four-wire electric energy meter with the check gauge, be equipped with the display input equipment in the three-phase four-wire electric energy meter check gauge main part, be equipped with voltage elasticity probe group in the three-phase four-wire electric energy meter check gauge main part, signal elasticity probe group, be equipped with current signal input group in the three-phase four-wire electric energy meter check gauge main part, during on-spot check-up, only need connect the check gauge on-by the three-phase four-wire.
Description
[technical field]
The utility model belongs to measuring instrument instrument, specifically examines and installs the one of electric energy meter error and wiring at the scene
Kind buckle-type 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 in this way 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, display reading is again directly and charging
Correlation, thus user pay much attention to electric energy meter field reading whether correct problem.Therefore no matter theoretically or from practice
On, it is a major issue by extensive concern that 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 at the same time in electric energy reading, to obtain by the error of school electric energy meter.But it is existing
It is independent design to have the shape of electric energy meter on-site calibrator, cannot be mounted on tester in the space of electric energy metering box, therefore survey
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.
[utility model content]
The utility model overcomes the deficiency of above-mentioned technology, provides a kind of buckle-type three-phase and four-line Watt-hour meter's field test
Tester when field-checking three-phase and four-line electric energy meter, need to be only connected to by the three-phase and four-line electric energy meter of school by buckling, be made by instrument
Field-checking when it is on duty without operating personnel, and checking time is unrestricted, thus can verify under a variety of operating conditions three
Four line electric energy meter error of phase.
To achieve the above object, the utility model uses following technical proposal：
A kind of buckle-type three-phase and four-line electric energy meter on-site calibrator includes three-phase and four-line powermeter verification instrumeter main body 1 with
And it is set to the three-phase and four-line electrical energy meter calibration circuit board in three-phase and four-line powermeter verification instrumeter main body 1, 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 exports terminal activation signal elastic probe group 5, the three-phase and four-line electric energy with three-phase and four-line electric meter signal
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 current input lines connection, the Ib electricity being connect with three-phase and four-line electric energy meter Ib+ electric current input lines
The Ic current signal input interfaces for flowing signal input interface, being connect with three-phase and four-line electric energy meter Ic+ electric current input lines.
The voltage elastic probe group 4 includes the Ua phase line 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 terminal terminals contact connects 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 to be exported with the active pulse of three-phase and four-line electric energy meter
The active pulse input signal elastic probe of signal terminal contact connects with the idle pulse output signals terminal of three-phase and four-line electric energy meter
Tactile idle pulse input signal elastic probe, the 485 signal elasticity contacted with 485 signal terminal of three-phase and four-line electric energy meter are visited
Needle, 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 link block that lower end can be inserted into three-phase and four-line electric energy meter bottom
The engaging lug 8 being set in three-phase and four-line powermeter verification instrumeter main body 1, between 7 upper end of the engaging lug 8 and zig-zag type link block
It is connected by connecting rod 9.
7 upper end of zig-zag type link 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 link 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 link block 6 are equipped with the elastic card for being fastened with chamfer lance tooth group 10
Button 11.
The connecting rod 9 is cylindrical or square column type.
The display input equipment 3 is operation touch-screen or keyboard ＆ display screen.
Remote communication module is set on the three-phase and four-line electrical energy meter calibration circuit board and realizes remote verification.
The utility model has the beneficial effects that：
The utility model tester main body designs for L-type, can be clamped with by school three-phase and four-line electric energy meter close and firm, fully
Space after being installed using electric energy meter in electricity box, tester, which is buckled in, can be closed door of meter casing, be added after the three-phase and four-line electric energy meter of school
Upper seal, and can cover by school three-phase and four-line electric energy meter connection terminal knob box, so that tester is voluntarily run, field-checking is without behaviour
Make human attendance, thus checking time is unrestricted, can verify the three-phase and four-line electric energy meter error under a variety of operating conditions；This reality
Directly be buckled in by the three-phase and four-line electric energy meter of school with novel tester, and by elastic probe directly with three-phase and four-line electric energy meter
Phase line, zero curve ramp, the connection of signal terminal, are not necessarily to voltage lead and signal lead, eliminate the trouble of wiring and raising
The safety of verification electric energy meter.
[description of the drawings]
Fig. 1 is that the utility model tester main body snaps connection one schematic diagram of embodiment with three-phase and four-line electric energy meter；Fig. 2 is
The utility model tester main body side view；
Fig. 3 is the adjustable connecting device embodiment that the utility model tester main body is snapped connection with three-phase and four-line electric energy meter
Two schematic diagrames；
Fig. 4 is part A enlarged drawing in Fig. 3.
[specific implementation mode]
It is described in further detail below in conjunction with the accompanying drawings with the embodiment of the utility model：
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 set 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, convenient for 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 it can be closed door of meter casing, 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 that input equipment 3, the display input equipment 3 are 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 end button activation signal 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 current signal input group 6 include the Ia electric currents letter being connect with three-phase and four-line electric energy meter Ia+ electric current input lines
Number input interface, the Ib current signals input interface being connect 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 current input lines 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 terminal terminals 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 the contact of signal terminal
The idle pulse input signal elastic probe of contact, the 485 signal elasticity contacted with 485 signal terminal of three-phase and four-line electric energy meter are visited
Needle, 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 link block that lower end can be inserted into three-phase and four-line electric energy meter bottom
The engaging lug 8 being set in three-phase and four-line powermeter verification instrumeter main body 1, between 7 upper end of the engaging lug 8 and zig-zag type link block
It is connected by connecting rod 9,7 another upper end of the zig-zag type link 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 cover, 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, the Uc phase line electricity in voltage elastic probe group 4
Compression elasticity probe, Un phases line voltages elastic probe respectively with Ua phase terminals terminal, the Ub phase terminals of three-phase and four-line electric energy meter
Terminal, Uc phase terminals terminal, the contact of Un phase terminal terminals, while making 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；Three-phase and four-line electric energy meter bottom is then inserted into 7 lower end of zig-zag type link block, 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 link block 7, and connecting rod 9 is to connect with threaded hole screw thread
It connects, three-phase and four-line powermeter verification instrumeter main body 1 can be buckled on three-phase and four-line electric energy meter after tightening connecting rod 9, then lead to
Two split core type current transformers or Current Transformer are crossed respectively in the Ia+ electric currents input line of three-phase and four-line electric energy meter, 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 signal input interfaces 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 point, three-phase and four-line powermeter verification instrumeter main body 1 does not cover electric energy meter display screen 12, live copy reading is not influenced by school
Three-phase and four-line electric energy meter, while remote communication module can also be set on three-phase and four-line electrical energy meter calibration circuit board and realize long-range school
It tests.
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 link block of adjustable connecting device 2, which is equipped with, makes connecting rod 9 pass through
Through-hole, the connecting rod 8 is equipped with chamfer lance tooth group 10, the zig-zag type link block 7 be equipped with for it is straight
The Elastic buckle 11 that angle lance tooth group 10 is fastened, wherein the connecting rod 9 is cylindrical or square column type.
When buckle, the upper end of zig-zag type link block 7 need to be only lived with finger pad, thumb depresses cylindrical type or square column with cap
Shape connecting rod 9,11 upper end of Elastic buckle are fixed in chamfer lance tooth group 10 referring to enlarged drawing A, thus 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.
Example the above is only the implementation of the present invention is not intended to limit the invention, all in the spirit and principles in the present invention
Within made by any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of buckle-type three-phase and four-line electric energy meter on-site calibrator, it is characterised in that：It 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 set 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) of energy table phase terminal terminal contact exports terminal activation signal with three-phase and four-line electric meter signal
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 being connect with three-phase and four-line electric energy meter Ia+ electric current input lines and three
The Ib current signals input interface of four line electric energy meter Ib+ electric current input lines of phase connection is inputted with three-phase and four-line electric energy meter Ic+ electric currents
The Ic current signal input interfaces of line connection.
2. a kind of 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 the Ua phases line voltages elastic probe contacted with three-phase and four-line electric energy meter Ua phase terminal terminals,
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 line 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.
3. a kind of 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
It includes that lower end can be inserted into the zig-zag type link block (7) of three-phase and four-line electric energy meter bottom and be set to three-phase to adjust attachment device (2)
Engaging lug (8) in four line powermeter verification instrumeter main bodys (1) leads between the engaging lug (8) and zig-zag type link block (7) upper end
Cross connecting rod (9) connection.
4. a kind of buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 3, it is characterised in that：It is described it
Font link block (7) upper end is equipped with threaded hole, and the connecting rod (9) is the threaded rod being threadedly coupled with threaded hole.
5. a kind of buckle-type three-phase and four-line electric energy meter on-site calibrator according to claim 3, it is characterised in that：It is described it
Font link block (7) upper end, which is equipped with, makes the through-hole that connecting rod (9) passes through, and the connecting rod (9) is equipped with chamfer lance tooth
Group (10), the zig-zag type link block (7) are equipped with the Elastic buckle for being fastened with chamfer lance tooth group (10)
(11)。
6. a kind of 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 cylindrical or square column type.
7. a kind of 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
Show that input equipment (3) is operation touch-screen or keyboard ＆ display screen.
8. a kind of 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 on four line electrical energy meter calibration circuit board of phase and realizes remote verification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820090828.4U CN207937589U (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 |
|---|---|---|---|
| CN201820090828.4U CN207937589U (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 |
|---|---|
| CN207937589U true CN207937589U (en) | 2018-10-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820090828.4U Expired - Fee Related CN207937589U (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) | CN207937589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008344A (en) * | 2018-01-19 | 2018-05-08 | 陈劲游 | Buckle formula three-phase four-wire electric energy meter on-spot check gauge |
-
2018
- 2018-01-19 CN CN201820090828.4U patent/CN207937589U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008344A (en) * | 2018-01-19 | 2018-05-08 | 陈劲游 | Buckle formula three-phase four-wire electric energy meter on-spot check gauge |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20220119 |