CN109738850A - A kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table - Google Patents
A kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table Download PDFInfo
- Publication number
- CN109738850A CN109738850A CN201910180395.0A CN201910180395A CN109738850A CN 109738850 A CN109738850 A CN 109738850A CN 201910180395 A CN201910180395 A CN 201910180395A CN 109738850 A CN109738850 A CN 109738850A
- Authority
- CN
- China
- Prior art keywords
- standard table
- relay switch
- pulse signal
- output end
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
This application provides a kind of electric energy measuring equipment calibrating installations based on the switching of multi-standard table, comprising: primary standard table, secondary standard table, the total control terminal of control module and backstage；The signal output end and control module of primary standard table communicate to connect；The signal output end and control module of secondary standard table communicate to connect；The total control terminal in backstage and control module communicate to connect；Control module is used to carry out error comparison by the pulse signal that the pulse signal and secondary standard table for exporting primary standard table export, and calculates the measurement error value of primary standard table and secondary standard table and is uploaded to the total control terminal in backstage.The application is in such a way that double standard scales are mutually examined, it calculates measurement error by comparing the pulse signal of double standard scales and monitors in real time, so that the error range between two standard scales controls the unstable technical problem of the unstable accuracy that will lead to watt-hour meter automatic verification device of the reliability of existing hidden failure point discovery in error range threshold value.
Description
Technical field
This application involves electric energy measuring equipment calibrating field more particularly to a kind of electrical energy measurements based on the switching of multi-standard table
Equipment calibrating installation.
Background technique
Standard electric energy meter is the core component of electric energy meter calibrating apparatus, and current watt-hour meter automatic verification device is all
It is single with unification platform high accuracy reference energy meter and error calculating module composition using an overall control center, a set of calibration power power supply
The electric energy meter calibration equipment of standard scale, however existing single standard scale calibrating installation is unable to existing for real-time monitoring standard electric energy meter
Hidden failures, such as situations such as elementary error exceeds preset error range or unstable error, currently, standard electric energy meter
Hidden failure is all to find by the mode of regular inspection, and the discovery of fault point relies on the professional standards of service personnel, hidden
The technology that the unstable accuracy that will lead to watt-hour meter automatic verification device of the reliability of property failure point discovery is unstable is asked
Topic.
Summary of the invention
It is existing for solving this application provides a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table
The hidden failure of standard electric energy meter is all to find by the mode of regular inspection, and the discovery of fault point relies on service personnel's
The accuracy of professional standards, watt-hour meter automatic verification device caused by the reliability of hidden failure point discovery is unstable is unstable
The technical issues of.
This application provides a kind of electric energy measuring equipment calibrating installations based on the switching of multi-standard table, comprising: primary standard table,
Secondary standard table, the total control terminal of control module and backstage；
The signal output end of the primary standard table and the control module communicate to connect；
The signal output end of the secondary standard table and the control module communicate to connect；
The total control terminal in backstage and the control module communicate to connect；
The control module is used for by exporting result and secondary standard table output result progress to the primary standard table
It compares, and comparison result is uploaded to the total control terminal in the backstage.
Preferably, further includes: signal exports switching module；
The signal output switching module specifically includes: the first relay switch and the second relay switch；
The high-frequency pulse signal output end of the primary standard table by the normally-closed contact of first relay switch with it is described
The high frequency standard pulse signal input terminal of control module communicates to connect；
The high-frequency pulse signal output end of the secondary standard table by the normally opened contact of first relay switch with it is described
The high frequency standard pulse signal input terminal of control module communicates to connect；
The high-frequency pulse signal output end of the primary standard table by the normally opened contact of second relay switch with it is described
The high frequency verification pulse signal input terminal communication connection of control module；
The high-frequency pulse signal output end of the secondary standard table by the normally-closed contact of second relay switch with it is described
The high frequency verification pulse signal input terminal communication connection of control module.
Preferably, the signal exports switching module further include: third relay switch；
The low frequency pulse signal output end of the secondary standard table by the normally-closed contact of the third relay switch with it is described
The low frequency verification pulse signal input terminal communication connection of control module；
The low frequency pulse signal output end of the primary standard table by the normally opened contact of the third relay switch with it is described
The low frequency verification pulse signal input terminal communication connection of control module.
Preferably, the signal exports switching module further include: the 4th relay switch and the 5th relay switch；
The data receiver of the primary standard table by normally-closed contact in the 4th relay switch and for it is described
The communication port connection of the total control terminal communication in backstage；
The data receiver of the secondary standard table by normally opened contact in the 4th relay switch and for it is described
The communication port connection of the total control terminal communication in backstage；
The data sending terminal of the primary standard table by normally-closed contact in the 5th relay switch and for it is described
The communication port connection of the total control terminal communication in backstage；
The data sending terminal of the secondary standard table by normally opened contact in the 5th relay switch and for it is described
The communication port connection of the total control terminal communication in backstage.
Preferably, the signal exports switching module further include: the 6th relay switch and the 7th relay switch；
Normally opened contact and the control module of the data receiver of the primary standard table by the 6th relay switch
Data sending terminal communication connection；
Normally-closed contact and the control module of the data receiver of the secondary standard table by the 6th relay switch
Data sending terminal communication connection；
The normally opened contact and the control mould that the data sending terminal of the primary standard table passes through the 7th device relay switch
The data receiver of block communicates to connect；
Normally-closed contact and the control module of the data sending terminal of the secondary standard table by the 7th relay switch
Data receiver communication connection.
Preferably, the signal exports switching module further include: the 8th relay switch and calibrating pulse output end；
The low frequency pulse signal output end of the primary standard table passes through the normally-closed contact of the 8th relay switch and described
Examine and determine the low-frequency pulse delivery outlet connection in pulse output end；
The low frequency pulse signal output end of the secondary standard table passes through the normally-closed contact of the 8th relay switch and described
Examine and determine the low-frequency pulse output interface connection in pulse output end；
The high-frequency impulse output interface of the calibrating pulse output end is connect with the switch terminal of first relay switch.
Preferably, first relay switch, second relay switch, the third relay switch, the described 4th after
Electric switch, the 5th relay switch, the 6th relay switch, the 7th relay switch and the 8th relay switch
It is simply connected dual control relay switch.
Preferably, further includes: difference block；
The difference block is used to export the primary standard table or the secondary standard table by first relay switch
Pulse signal be converted to differential signal.
Preferably, further includes: several igniter modules；
The output end of the igniter module verifies arteries and veins with the high frequency standard pulse signal input terminal, the high frequency respectively
It rushes signal input part and low frequency verification pulse signal input terminal connects one to one.
Preferably, the igniter module is specially tandem type Schmidt trigger.
As can be seen from the above technical solutions, the application has the following advantages:
This application provides a kind of electric energy measuring equipment calibrating installations based on the switching of multi-standard table, comprising: primary standard table,
Secondary standard table, the total control terminal of control module and backstage；The signal output end of the primary standard table is communicated with the control module
Connection；The signal output end of the secondary standard table and the control module communicate to connect；The total control terminal in backstage and the control
The communication connection of molding block；The control module is used for pulse signal and the secondary standard table by exporting to the primary standard table
The pulse signal of output carries out error comparison, calculates the measurement error value of the primary standard table and the secondary standard table and uploads
To the total control terminal in the backstage.
The application calculates measurement error in such a way that double standard scales are mutually examined, by comparing the pulse signal of double standard scales
And monitor in real time, so that the error range between two standard scales controls the existing hidden failure point in error range threshold value
It was found that the unstable technical problem of the unstable accuracy that will lead to watt-hour meter automatic verification device of reliability.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is an a kind of implementation of electric energy measuring equipment calibrating installation based on the switching of multi-standard table provided by the present application
The structural schematic diagram of example；
Fig. 2 is a kind of another reality of electric energy measuring equipment calibrating installation based on the switching of multi-standard table provided by the present application
Apply the structural schematic diagram of example；
Fig. 3 is a kind of signal output of electric energy measuring equipment calibrating installation based on the switching of multi-standard table provided by the present application
The circuit structure diagram of switching module.
Specific embodiment
The embodiment of the present application provides a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table, for solving
The hidden failure of existing standard electric energy meter is all to find by the mode of regular inspection, and the discovery of fault point relies on maintenance
The professional standards of personnel, the unstable accuracy that will lead to watt-hour meter automatic verification device of the reliability of hidden failure point discovery
Unstable technical problem.
To enable present invention purpose, feature, advantage more obvious and understandable, below in conjunction with the application
Attached drawing in embodiment, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that disclosed below
Embodiment be only some embodiments of the present application, and not all embodiment.Based on the embodiment in the application, this field
Those of ordinary skill's all other embodiment obtained without making creative work belongs to the application protection
Range.
It please refers to Fig.1 to Fig.3, this application provides a kind of electric energy measuring equipments based on the switching of multi-standard table to examine and determine dress
It sets, comprising: primary standard table 1, secondary standard table 2, the total control terminal 4 of control module 3 and backstage；
The signal output end and control module 3 of primary standard table 1 communicate to connect；
The signal output end and control module 3 of secondary standard table 2 communicate to connect；
The total control terminal 4 in backstage is communicated to connect with control module 3；
Control module 3 is missed by the pulse signal that the pulse signal and secondary standard table 2 that export to primary standard table 1 export
Difference compares, and calculates the measurement error value of primary standard table 1 and secondary standard table 2 and is uploaded to the total control terminal 4 in backstage.
It should be noted that the control module 3 of the present embodiment is using the high-frequency impulse of primary standard table as benchmark, with secondary standard
The electrical energy pulse of table output is compared, and detailed process is as follows: secondary standard table measures primary standard table at this time while going out N number of pulse
Umber of pulse m, then according to primary standard table constant C0When going out N number of pulse with secondary standard table constant C calculating calibrated meter, primary standard table
The umber of pulse that should be exportedWhereinWhen going out 1 electrical energy pulse for secondary standard table, electricity that primary standard table should export
Energy impulse number, then elementary error is between standard scale
The circuit structure that the present embodiment is switched based on multi-standard table, make at least two standard electric energy meters same load similarly hereinafter
When work, during normal calibration, control module 3 is first communicated with primary standard table and secondary standard table, acquisition primary standard table and
The gear and constant of secondary standard table calculate the arteries and veins of secondary standard table output then using the pulse signal of primary standard table as benchmark signal
The measurement error value of the reference pulse signal of signal and the output of primary standard table is rushed, and is uploaded to the total control terminal 4 in backstage convenient for real-time
Monitoring enables when the case where error range required beyond national measurement standard verification occur in primary standard table or secondary standard table
It prompts staff to carry out maintenance work, solves the unstable caused electric energy of reliability of the hidden failure point discovery of standard scale
The unstable technical problem of the accuracy of table automation calibrating device.
It should be noted that the primary standard table 1 of the present embodiment is specially to be used as standard under the original state of switching circuit
The reference signal output end that table is mutually examined and a standard scale as calibrated meter checking signal output end, and secondary standard table is then
At least one standard scale for the checking signal output end mutually examined under circuit original state as standard scale.
Further, further includes: signal exports switching module 5；
Signal output switching module 5 specifically includes: the first relay switch JK3A and the second relay switch JK3B；
The high-frequency pulse signal output end of primary standard table 1 passes through the normally-closed contact and control module of the first relay switch JK3A
3 high frequency standard pulse signal input terminal communication connection；
The high-frequency pulse signal output end of secondary standard table 2 passes through the normally opened contact and control module of the first relay switch JK3A
3 high frequency standard pulse signal input terminal communication connection；
The high-frequency pulse signal output end of primary standard table 1 passes through the normally opened contact and control module of the second relay switch JK3B
3 high frequency verification pulse signal input terminal communication connection；
The high-frequency pulse signal output end of secondary standard table 2 passes through the normally-closed contact and control module of the second relay switch JK3B
3 high frequency verification pulse signal input terminal communication connection.
It should be noted that the first relay switch JK3A and the second relay switch JK3B of the present embodiment are respectively as control
The pulse signal input terminal of module 3 and the interface channel of primary standard table 1 and secondary standard table 2；
Since the primary standard table of the present embodiment default is main standard scale 1, the high-frequency impulse output end connection the of primary standard table 1
The normally-closed contact of one relay switch JK3A, secondary standard table 2 then connects the normally opened contact of the first relay switch JK3A, and passes through first
Relay switch JK3A is connect with the high frequency standard pulse signal input terminal of control module 3；Meanwhile the high-frequency impulse of secondary standard table 2
Output end connects the normally-closed contact of the second relay switch JK3B, and primary standard table 1 then connects the normally opened touching of the second relay switch JK3B
Point, and pulse signal input terminal is verified with the high frequency of control module 3 by the second relay switch JK3B and is connect, under normal circumstances,
Primary standard table 1 and secondary standard table 2 pass through normally-closed contact and the control of the first relay switch JK3A and the second relay switch JK3B respectively
Molding block 3 connects, when needing to switch over the signal of input, by the first relay switch JK3A and the second relay switch JK3B
Normally-closed contact connection be switched to normally opened contact connection, the high-frequency pulse signal of secondary standard table 2 can be accessed control module 3
High frequency standard pulse signal input terminal and the high frequency verification arteries and veins that the high-frequency pulse signal of primary standard table 1 is accessed to control module 3
Signal input part is rushed, realizes the switching of primary standard table and secondary standard table.
In order to be illustrated more clearly that the signal switching mode of the application, switch below in conjunction with signal provided by the present application
The physical circuit of module is illustrated:
Referring to Fig. 3, when choosing shelves of the primary standard table 1 as primary standard and overall control center communication acquisition primary standard electric energy meter
Position and constant simultaneously pass to control module 3, and secondary standard table 2 is obtained as secondary standard and the microcontroller communication of double standard scale switching modules
Take the gear and constant of secondary standard electric energy meter.The standard electrical energy pulse FH1 that primary standard table 1 is exported passes through the first relay switch
Send the single-chip microcontroller of double standard scale switching modules as calculating electric energy after JK3A normally-closed contact after Schmidt trigger U6C, U6D
The reference pulse of error, FH2 are accessed by the second relay switch JK3B normally-closed contact and after Schmidt trigger U6B, U6E
Control module 3 is used as calibrated meter pulse, carries out application condition with the reference pulse of primary standard table 1, and result is uploaded to master control
Center and operating software notify operator to standard electric energy if error result exceeds the error range of operating software setting
Table is checked；
When secondary standard table 2 to be chosen is as primary standard, switch the contact of relay switch to normally opened contact, by secondary standard table
The standard electrical energy pulse FH2 of 2 outputs is after the first relay switch JK3A normally opened contact after Schmidt trigger U6C, U6D
Send the single-chip microcontroller of double standard scale switching modules as the reference pulse for calculating electric energy error, FH1 passes through the second relay switch JK3B
Normally opened contact simultaneously accesses control module 3 as calibrated meter pulse, with secondary standard table 2 after Schmidt trigger U6B, U6E
Reference pulse carries out application condition, and result is uploaded to overall control center and operating software, if error result is soft beyond operating
The error range of part setting, notifies operator to check standard electric energy meter.
It should be noted that in attached drawing 3 label 0 represent be 1 or 2 one of them, for example, pass through the first relay switch
The pulse signal FH0 of JK3A output, if the contact of the first relay switch JK3A closure is normally-closed contact at this time, what FH0 was represented
It is the pulse signal FH1 that primary standard table 1 exports, otherwise that FH0 is represented is the pulse signal FH2 that secondary standard table 2 exports, remaining is defeated
Output and so on.
Further, signal exports switching module 5 further include: third relay switch JK4A；
The low frequency pulse signal output end of secondary standard table 2 passes through the normally-closed contact and control module of third relay switch JK4A
3 low frequency verification pulse signal input terminal communication connection；
The low frequency pulse signal output end of primary standard table 1 passes through the normally opened contact and control module of third relay switch JK4A
3 low frequency verification pulse signal input terminal communication connection.
It should be noted that the standard electric energy meter of different model configures different, to have high and low frequency while exporting marks
Quasi- electric energy meter, signal, which exports, increases low frequency verification pulse signal input terminal in switching module 5, for providing and primary standard error
Low-frequency pulse when comparison, and access control module 3 after Schmidt trigger U6A, U6F and be used as calibrated meter pulse, to tool
The standard scale for having low frequency pulse signal to export carries out error testing.
Further, signal exports switching module 5 further include: the 4th relay switch JK2A and the 5th relay switch JK1A；
The data receiver of primary standard table 1 is by the normally-closed contact in the 4th relay switch JK2A and is used for and backstage master control
The communication port connection that terminal 4 communicates；
The data receiver of secondary standard table 2 is by the normally opened contact in the 4th relay switch JK2A and is used for and backstage master control
The communication port connection that terminal 4 communicates；
The data sending terminal of primary standard table 1 is by the normally-closed contact in the 5th relay switch JK1A and is used for and backstage master control
The communication port connection that terminal 4 communicates；
The data sending terminal of secondary standard table 2 is by the normally opened contact in the 5th relay switch JK1A and is used for and backstage master control
The communication port connection that terminal 4 communicates.
It should be noted that the 4th relay switch JK2A and the 5th relay switch JK1A are for realizing primary standard table 1 or pair
The communication connection of the total control terminal 4 of standard scale 2 and backstage, controls primary standard table 1 convenient for the total control terminal 4 in backstage or secondary standard table 2 is held
The conventional electrical energy meter calibration work of row.
Further, signal exports switching module 5 further include: the 6th relay switch JK2B and the 7th relay switch JK1B；
The data receiver of primary standard table 1 passes through the normally opened contact of the 6th relay switch JK2B and the data of control module 3
Transmitting terminal communication connection；
The data receiver of secondary standard table 2 passes through the normally-closed contact of the 6th relay switch JK2B and the data of control module 3
Transmitting terminal communication connection；
The data sending terminal of primary standard table 1 is connect by the normally opened contact of the 7th device relay switch and the data of control module 3
Receiving end communication connection；
The data sending terminal of secondary standard table 2 passes through the normally-closed contact of the 7th relay switch JK1B and the data of control module 3
Receiving end communication connection.
It should be noted that different gears is again because the standard electric energy meter of different size has different voltage and current gears
There is different electric meter constants, it is therefore desirable to it is communicated, is read by the gear of school standard electric energy meter with by school standard electric energy meter, from
And the electric meter constant of corresponding gear is obtained, for calculating electric energy error, and the 6th relay switch JK2B and the 7th relay switch
JK1B is then that the communication switching switch of control module 3 and primary standard table 1 and secondary standard table 2 is used for, switching control module 3 and two
Connection or disconnection between standard scale, and then may be selected to obtain the gear and constant of primary standard table 1 or secondary standard table 2；
The present embodiment realizes that control module 3 obtains the communication interaction of standard scale constant using 232 communication modules, certainly,
Other kinds of communication protocol module can be used instead according to actual needs.
Further, signal exports switching module 5 further include: the 8th relay switch JK4B and calibrating pulse output end；
Normally-closed contact and calibrating pulse of the low frequency pulse signal output end of primary standard table 1 by the 8th relay switch JK4B
Low-frequency pulse delivery outlet J7 connection in output end；
Normally-closed contact and calibrating pulse of the low frequency pulse signal output end of secondary standard table 2 by the 8th relay switch JK4B
Low-frequency pulse output interface J7 connection in output end；
The high-frequency impulse output interface J6 of calibrating pulse output end is connect with the switch terminal of the first relay switch JK3A.
In addition, the electric energy measuring equipment calibrating installation of the present embodiment is additionally provided with calibrating pulse output end, cut by synchronizing
The contact of the first relay switch JK3A and the 8th relay switch JK4B is changed, realizes calibrating pulse output end orientation output primary standard table
1 or secondary standard table 2 pulse signal, wherein by calibrating pulse output end output pulse signal can be transmitted to upper calibrating
Device is further examined and determine for the progress to primary standard table 1 or secondary standard table 2 or for examining and determine by school electric energy meter.
Further, the first relay switch JK3A, the second relay switch JK3B, third relay switch JK4A, the 4th relay
Switch JK2A, the 5th relay switch JK1A, the 6th relay switch JK2B, the 7th relay switch JK1B and the 8th relay switch
JK4B is simply connected dual control relay switch.
Further, further includes: difference block 6；
Difference block 6 is used to pass through in primary standard table 1 or secondary standard table 2 pulse signal of first relay switch JK3A output
Be converted to differential signal.
Further, further includes: several igniter modules；
The output end of igniter module verifies pulse signal input terminal with high frequency standard pulse signal input terminal, high frequency respectively
And low frequency verification pulse signal input terminal connects one to one.
Further, igniter module is specially tandem type Schmidt trigger.
It should be noted that pulse input circuit of the present embodiment by using Schmidt trigger as control module 3,
When the capacitor on transmission line is larger, the rising edge of waveform will obviously slow down；When transmission line is longer, and the impedance of receiving terminal with
When the impedance mismatch of transmission line, oscillatory occurences will be generated in the rising edge and failing edge of waveform；When other pulse signals pass through
Distribution capacity or public power wire between conducting wire be added to rectangular pulse signal when, additional noise will occur on signal.No matter
There is that above-mentioned a kind of situation, more satisfactory rectangular pulse can be obtained and with Schmidt's inverter trigger shaping
Waveform increases the system stability of electric energy meter calibrating apparatus.
The embodiment of the present application is based on double standard table structures, make two standard electric energy meters and calibrated meter under same load simultaneously
Work, during normal calibration, control module 3 is first communicated with primary standard table and secondary standard table, obtains primary standard table and pair
The gear and constant of standard scale calculate the pulse of secondary standard table output then using the pulse signal of primary standard table as benchmark signal
The measurement error value of signal and the reference pulse signal of primary standard table output, and the total control terminal 4 in backstage is uploaded to convenient for prison in real time
Control, so that when the case where error range required beyond national measurement standard verification Shi Nengti occur in primary standard table or secondary standard table
Show that staff carries out maintenance work, solves the unstable caused electric energy meter of reliability of the hidden failure point discovery of standard scale
The unstable technical problem of the accuracy of automation calibrating device.
Meanwhile the embodiment of the present application also exports switching module 5 by setting signal, realizes primary standard table 1 and secondary standard table 2
Between the switching of major and minor table relationship can detect electricity using secondary standard table 2 immediately when 1 inspection of primary standard table or failure
Energy table can detect electric energy meter using primary standard table 1 immediately, solve because equipment is sent when 2 inspection of secondary standard table or failure
Inspection or maintenance period, requiring manual replacement the drawbacks of electric energy meter calibration work can be just continued to execute after standard scale causes equipment to waste
The technical issues of seriously affecting the calibrating efficiency of extensive verification task reduces.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
The description of the present application and term " first " in above-mentioned attached drawing, " second ", " third ", " the 4th " etc. are (if deposited
) it is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that use in this way
Data are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be in addition to illustrating herein
Or the sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
Above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although with reference to the foregoing embodiments
The application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table characterized by comprising primary standard table, pair
Standard scale, the total control terminal of control module and backstage；
The signal output end of the primary standard table and the control module communicate to connect；
The signal output end of the secondary standard table and the control module communicate to connect；
The total control terminal in backstage and the control module communicate to connect；
The control module is used to be compared by exporting result to primary standard table output result and the secondary standard table,
And comparison result is uploaded to the total control terminal in the backstage.
2. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 1, feature exist
In, further includes: signal exports switching module；
The signal output switching module specifically includes: the first relay switch and the second relay switch；
Normally-closed contact and the control of the high-frequency pulse signal output end of the primary standard table by first relay switch
The high frequency standard pulse signal input terminal of module communicates to connect；
Normally opened contact and the control of the high-frequency pulse signal output end of the secondary standard table by first relay switch
The high frequency standard pulse signal input terminal of module communicates to connect；
Normally opened contact and the control of the high-frequency pulse signal output end of the primary standard table by second relay switch
The high frequency verification pulse signal input terminal communication connection of module；
Normally-closed contact and the control of the high-frequency pulse signal output end of the secondary standard table by second relay switch
The high frequency verification pulse signal input terminal communication connection of module.
3. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 2, feature exist
In the signal exports switching module further include: third relay switch；
Normally-closed contact and the control of the low frequency pulse signal output end of the secondary standard table by the third relay switch
The low frequency verification pulse signal input terminal communication connection of module；
Normally opened contact and the control of the low frequency pulse signal output end of the primary standard table by the third relay switch
The low frequency verification pulse signal input terminal communication connection of module.
4. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 3, feature exist
In the signal exports switching module further include: the 4th relay switch and the 5th relay switch；
The data receiver of the primary standard table is by the normally-closed contact in the 4th relay switch and is used for and the backstage
The communication port connection of total control terminal communication；
The data receiver of the secondary standard table is by the normally opened contact in the 4th relay switch and is used for and the backstage
The communication port connection of total control terminal communication；
The data sending terminal of the primary standard table is by the normally-closed contact in the 5th relay switch and is used for and the backstage
The communication port connection of total control terminal communication；
The data sending terminal of the secondary standard table is by the normally opened contact in the 5th relay switch and is used for and the backstage
The communication port connection of total control terminal communication.
5. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 4, feature exist
In the signal exports switching module further include: the 6th relay switch and the 7th relay switch；
The data receiver of the primary standard table passes through the normally opened contact of the 6th relay switch and the number of the control module
It is communicated to connect according to transmitting terminal；
The data receiver of the secondary standard table passes through the normally-closed contact of the 6th relay switch and the number of the control module
It is communicated to connect according to transmitting terminal；
The data sending terminal of the primary standard table passes through the normally opened contact of the 7th device relay switch and the control module
Data receiver communication connection；
The data sending terminal of the secondary standard table passes through the normally-closed contact of the 7th relay switch and the number of the control module
It is communicated to connect according to receiving end.
6. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 5, feature exist
In the signal exports switching module further include: the 8th relay switch and calibrating pulse output end；
Normally-closed contact and the calibrating of the low frequency pulse signal output end of the primary standard table by the 8th relay switch
Low-frequency pulse delivery outlet connection in pulse output end；
Normally-closed contact and the calibrating of the low frequency pulse signal output end of the secondary standard table by the 8th relay switch
Low-frequency pulse output interface connection in pulse output end；
The high-frequency impulse output interface of the calibrating pulse output end is connect with the switch terminal of first relay switch.
7. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 6, feature exist
In first relay switch, second relay switch, the third relay switch, the 4th relay switch, described
Five relay switch, the 6th relay switch, the 7th relay switch and the 8th relay switch are simply connected dual control
Relay switch.
8. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 2, feature exist
In, further includes: difference block；
The difference block is used to the primary standard table or the secondary standard table passing through the arteries and veins that first relay switch exports
It rushes signal and is converted to differential signal.
9. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 8, feature exist
In, further includes: several igniter modules；
The output end of the igniter module is believed with the high frequency standard pulse signal input terminal, high frequency verification pulse respectively
Number input terminal and low frequency verification pulse signal input terminal connect one to one.
10. a kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table according to claim 9, feature exist
In the igniter module is specially tandem type Schmidt trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180395.0A CN109738850A (en) | 2019-03-11 | 2019-03-11 | A kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180395.0A CN109738850A (en) | 2019-03-11 | 2019-03-11 | A kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109738850A true CN109738850A (en) | 2019-05-10 |
Family
ID=66370140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910180395.0A Pending CN109738850A (en) | 2019-03-11 | 2019-03-11 | A kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109738850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122963A (en) * | 2019-12-03 | 2020-05-08 | 深圳供电局有限公司 | Time-sharing electric quantity abnormity judgment and repair method for electric meter of metering automation system |
| CN111157941A (en) * | 2020-01-19 | 2020-05-15 | 广东电网有限责任公司计量中心 | Device and method for quickly switching and checking primary winding of power transformer |
| CN112305490A (en) * | 2020-10-30 | 2021-02-02 | 海南电网有限责任公司 | Multiloop automatic switching control equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087351A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Watt-hour meter inspection quality real-time monitoring device and method |
| CN102353926A (en) * | 2011-07-13 | 2012-02-15 | 北京北研兴电力仪表有限责任公司 | Electric energy metering simulation operation test method and device |
| CN203643596U (en) * | 2013-12-18 | 2014-06-11 | 四川德阳德仪电子仪器有限公司 | Multi-meter-position three-phase electric energy meter detection system |
| CN203658571U (en) * | 2013-12-31 | 2014-06-18 | 郑州三晖电气股份有限公司 | Switching wiring circuit for double-loop ammeter detection instrument |
| CN105093163A (en) * | 2015-08-07 | 2015-11-25 | 国家电网公司 | Error debugging method for electronic electric energy meter |
| US20170322283A1 (en) * | 2016-05-04 | 2017-11-09 | Schweitzer Engineering Laboratories, Inc. | Systems and Methods for Revenue Meter Testing |
-
2019
- 2019-03-11 CN CN201910180395.0A patent/CN109738850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087351A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Watt-hour meter inspection quality real-time monitoring device and method |
| CN102353926A (en) * | 2011-07-13 | 2012-02-15 | 北京北研兴电力仪表有限责任公司 | Electric energy metering simulation operation test method and device |
| CN203643596U (en) * | 2013-12-18 | 2014-06-11 | 四川德阳德仪电子仪器有限公司 | Multi-meter-position three-phase electric energy meter detection system |
| CN203658571U (en) * | 2013-12-31 | 2014-06-18 | 郑州三晖电气股份有限公司 | Switching wiring circuit for double-loop ammeter detection instrument |
| CN105093163A (en) * | 2015-08-07 | 2015-11-25 | 国家电网公司 | Error debugging method for electronic electric energy meter |
| US20170322283A1 (en) * | 2016-05-04 | 2017-11-09 | Schweitzer Engineering Laboratories, Inc. | Systems and Methods for Revenue Meter Testing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122963A (en) * | 2019-12-03 | 2020-05-08 | 深圳供电局有限公司 | Time-sharing electric quantity abnormity judgment and repair method for electric meter of metering automation system |
| CN111157941A (en) * | 2020-01-19 | 2020-05-15 | 广东电网有限责任公司计量中心 | Device and method for quickly switching and checking primary winding of power transformer |
| CN112305490A (en) * | 2020-10-30 | 2021-02-02 | 海南电网有限责任公司 | Multiloop automatic switching control equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109738850A (en) | A kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table | |
| CN103076491B (en) | Supply line's detection method of AC/DC universal and testing circuit | |
| WO2013010447A1 (en) | Carrier communication test device | |
| CN112702240B (en) | System and method for testing ground electronic unit | |
| CN104215835A (en) | Automatic measuring system for main transformer | |
| CN204188757U (en) | Portable power equipment leakage point insulating pick-up unit | |
| CN112564740B (en) | Device for detecting advanced application function of HPLC | |
| CN111856204A (en) | 10kV line fault detection system based on carrier output impedance | |
| CN103076560B (en) | Electrical test equipment non-contact measurement combination unit and application thereof | |
| CN112578197B (en) | Automatic testing system and method for secondary circuit of transformer substation | |
| CN111289837B (en) | Method and system for evaluating latent fault of power distribution network equipment | |
| CN212180939U (en) | 10kV line fault detection system based on medium-voltage carrier output impedance | |
| CN216792319U (en) | Detection system suitable for power quality monitoring terminal | |
| CN105577392A (en) | Test device and method for testing remote transmission reliability of POE (Power Over Ethernet) switch | |
| CN207099071U (en) | A kind of electric line carrier communication tests programmable attenuator | |
| CN201298059Y (en) | Attempering automation system remote control channel on-line detection system | |
| CN103605034A (en) | Device for detecting wiring of equipment cabinet | |
| CN113030640A (en) | 10kV line fault detection system based on carrier signal fading characteristics | |
| CN217113065U (en) | Rail train cable detection device | |
| CN207380176U (en) | A kind of traveling wave-impedance synthesis ranging calibration equipment | |
| CN104503336B (en) | Signal generator based on adaptive interface | |
| CN211293088U (en) | Portable railway signal monitoring and diagnosing device | |
| CN218387498U (en) | Non-signaling test circuit of low-voltage power line broadband carrier communication unit | |
| CN114609941A (en) | Rail train cable detection device | |
| CN219831250U (en) | Online high-voltage cable loop resistance monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |