CN205880191U - A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects - Google Patents
A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects Download PDFInfo
- Publication number
- CN205880191U CN205880191U CN201620766650.1U CN201620766650U CN205880191U CN 205880191 U CN205880191 U CN 205880191U CN 201620766650 U CN201620766650 U CN 201620766650U CN 205880191 U CN205880191 U CN 205880191U
- Authority
- CN
- China
- Prior art keywords
- secondary circuit
- module
- current
- loop
- voltage
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000004088 simulation Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 claims description 8
- 235000004443 Ricinus communis Nutrition 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to an isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects, include: current transformer group, secondary circuit state analog control module, constant current source module, constant voltage source module, liter flow module, loop current voltage testing and a plurality of epitope functional module. Wherein current transformer organizes and the loop state of secondary circuit state analog control module collaborative work in order to simulate different secondary circuit, constant current source module, constant voltage source module and liter class module organize for current transformer and secondary circuit state analog control module provides accurate adjustable electrical parameter, the real -time current value and the real - time voltage value of each measuring point among the loop current voltage testing detection simulation secondary circuit, the epitope functional module will be surveyed the table and connected on the secondary circuit of current transformer group and the simulation of secondary circuit state analog control module to calculate measuring voltage value and the measuring current value and the error of real - time voltage value with real -time current value of being surveyed each measuring point of table measuring.
Description
Technical field
This utility model relates to production, manufacture field, and more specifically, relates to a kind of for possessing CT secondary circuit
The electric energy meter of status monitoring function carries out the special purpose device of global function detection
Background technology
Stealing is huge to the economic loss that power supply enterprise, country cause, and work of electricity anti-stealing be one long-term and
Complicated system engineering.Only do a good job of it work of electricity anti-stealing, could really make enterprises of managing electric wire netting's leak stopping increase income, reduce line loss, reach
The purpose increased benefit is managed to tube.Thoroughly to solve stealing problem, need strict, science, reasonable, the control measures of specification, more
Need technical measures perfect, reliable.Secondary circuit state electric energy meter can identify accurately secondary circuit electricity filching behavior and on
Report server, so ensureing that the detection accuracy of secondary circuit state electric energy meter is the most important condition ensureing circuit safety problem.
Summary of the invention
According to an aspect of the present utility model, it is provided that a kind of for the electricity possessing CT secondary circuit status monitoring function
Energy table carries out the special purpose device of global function detection, including:
Secondary circuit analog module, constant-current source module, constant pressure source module, liter flow module, loop current voltage detection module
And multiple epi-position functional module, wherein,
Described constant-current source module, constant pressure source module and liter flow module provide accurate adjustable electricity for secondary circuit analog module
Flow valuve and magnitude of voltage；
The loop state of described secondary circuit analog module analog current transformer secondary circuit under different no-load voltage ratios；
Described loop current voltage detection module is for detecting the real-time current value of each measurement point in simulation secondary circuit
And real-time voltage value；
Tested table is connected on the secondary circuit that secondary circuit is simulated by the plurality of epi-position functional module, and counts
Calculate each the measurement magnitude of voltage measuring point measured by tested table and measurement current value and real-time voltage value and real-time current value phase
The error of ratio.
Preferably, described secondary circuit analog module includes current transformer group and secondary circuit status control module, its
Middle current transformer group provides the adjustable secondary circuit of no-load voltage ratio, and secondary circuit state simulation module is by secondary circuit breaker in middle
Control carry out the switching of secondary circuit state.
Preferably, described loop state includes: normal connection, loop open circuit, the CT short-circuit of terminals, loop commutation and CT mono-
Secondary short circuit.
Preferably, described device also includes secondary circuit state and transformer switching state display module, for display two
Minor loop current state and current transformer ratio handover information.
Preferably, described device also includes communication module, for carrying out data communication with special purpose computer.
Preferably, described communication module enters with special purpose computer by the way of RS232, RS485, network or GPRS/CDMA
The communication of row data.
Preferably, described secondary circuit analog module, constant-current source module, constant pressure source module, liter flow module, loop current electricity
Pressure detection module and multiple epi-position functional module are installed in pocket watch stage body, and described pocket watch stage body is divided into upper and lower two
Subdivision.
Preferably, the plurality of epi-position functional module is divided into upper and lower two row, and is arranged on pocket watch stage body abreast
Front top half.
Preferably, secondary circuit state and transformer switching state display module and communication are also installed in described pocket watch stage body
Module, wherein secondary circuit state and transformer switching state display module and communication module are installed in pocket watch stage body lower half
Point.
Preferably, bottom described pocket watch stage body, castor and fot screw are set.
Preferably, described device is connected with special purpose computer, and described special purpose computer has special global function inspection software, and leads to
Cross special global function inspection software and electric energy meter detection parameter is set, make control detector unit automatically detect.
Preferably, described special purpose computer also includes power supply output display unit, the error that epi-position functional module generates is entered
Row display in real time.
Accompanying drawing explanation
By reference to the following drawings, illustrative embodiments of the present utility model can be more fully understood by:
Fig. 1 is that the electric energy meter possessing CT secondary circuit status monitoring function according to this utility model preferred implementation enters
The cut-away view of row global function detection device；
Fig. 2 is that the electric energy meter possessing CT secondary circuit status monitoring function according to this utility model preferred implementation enters
The external device (ED) figure of row global function detection device；
Fig. 3 is the fundamental diagram of the secondary circuit analog module according to this utility model preferred implementation.
Detailed description of the invention
With reference now to accompanying drawing, introduce illustrative embodiments of the present utility model, but, this utility model can be by many
Different forms is implemented, and is not limited to embodiment described herein, it is provided that these embodiments are in order at large and complete
Open this utility model entirely, and scope of the present utility model is fully passed on to person of ordinary skill in the field.For
Represent that the term in illustrative embodiments in the accompanying drawings is not to restriction of the present utility model.In the accompanying drawings, identical
Cells/elements uses identical reference.
Except as otherwise noted, person of ordinary skill in the field is had by term used herein (including scientific and technical terminology)
Common understand implication.Further it will be understood that the term limited with normally used dictionary, it should it is understood to and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or the most formal meaning.
Fig. 1 is that the electric energy meter possessing CT secondary circuit status monitoring function according to this utility model preferred implementation enters
The cut-away view of row global function detection device.As it is shown in figure 1, CT secondary circuit state electric energy meter global function detection device 100
By secondary circuit simulation 101, constant-current source module 102, constant pressure source module 103, rise flow module 104, loop current voltage detecting mould
Block 105, multiple epi-position functional module 106, secondary circuit state and transformer switching state display module 107 and communication module
108 compositions.
Preferably, the various states of the secondary circuit needed for secondary circuit analog module 101 analogue measurement.Preferably, two
Minor loop analog module 101 is by current transformer group and secondary circuit state simulation control module.Preferably, secondary circuit state
Simulation control module is adjusted controlling the coil ratio of current transformer group by controlling the closure state of circuit breaker in middle,
Reach the purpose of the regulation simulation various connection status of secondary circuit.Preferably, described loop state includes normally connecting, loop is opened
Road, the CT short-circuit of terminals, loop commutation and CT first short circuit, but it is not limited to above-mentioned loop state.
Preferably, constant-current source module 102, constant pressure source module 103 and liter flow module 104 provide precisely for simulation secondary circuit
Adjustable electrical quantity, wherein said electrical quantity includes accurate adjustable current value and accurate adjustable magnitude of voltage.
Preferably, in the secondary circuit of detection simulation in real time, each measures point to loop current voltage detection module 105
Current value and magnitude of voltage, generate real-time current value and real-time voltage value.
Preferably, epi-position functional module 106 is used for hanging tested table, and tested table is connected to simulate secondary circuit, and each is surveyed
On amount point, and calculate that tested table measures each measure measurement magnitude of voltage of point and measure current value and real-time voltage value and real-time
The error that current value is compared.
Preferably, secondary circuit state and transformer switching state display module 107 can show simulation secondary returning in real time
Road current state and current transformer ratio handover information.The such as state of present day analog secondary circuit can be CT first short circuit
State, the no-load voltage ratio of current transformer is 800:5 etc..
Preferably, communication module 108 for carrying out data communication with external special purpose computer, such as, accepts special purpose computer and sends out
The test sign on sent here and the error etc. sending epi-position functional module 106 calculating generation to special purpose computer.Preferably, institute
State communication module 108 by the way of RS232, RS485, network or GPRS/CDMA, carry out the communication of data with special purpose computer, but
It is not limited to above-mentioned communication mode.
Fig. 2 is that the electric energy meter possessing CT secondary circuit status monitoring function according to this utility model preferred implementation enters
The external device (ED) figure of row global function detection device.As in figure 2 it is shown, device 200 is main by CT pocket watch stage body 201 and special purpose computer
202 compositions.Preferably, pocket watch stage body 201 is connected with special purpose computer 202 by communication module, carries out the transmission of data or instruction.
Preferably, described secondary circuit analog module, constant-current source module, constant pressure source module, liter flow module, loop current electricity
Pressure detection module and epi-position functional module are installed in pocket watch stage body 201, and described pocket watch stage body 201 front is divided into
Lower two subdivisions.Preferably, the plurality of epi-position functional module, it is divided into upper and lower two row, is arranged on pocket watch platform abreast
Body front top half, is used for hanging tested table, to carry out the Function detection to tested table.Preferably, in pocket watch stage body 201 also
Installing secondary circuit state and transformer switching state display module and communication module, wherein secondary circuit state and transformer are cut
Change state display module and be installed in the latter half, pocket watch stage body front.
Preferably, castor and fot screw are set bottom pocket watch stage body 201, are moved easily and fix.
Preferably, special purpose computer 202 has special global function inspection software, during detection, soft by the detection of special global function
Part arranges electric energy meter detection parameter, makes control detector unit automatically detect.
Preferably, described special purpose computer 202 also includes power supply output display unit, error epi-position functional module generated
Show in real time.
Fig. 3 is the fundamental diagram of the secondary circuit analog module according to this utility model embodiment.As it is shown on figure 3,
Simulation secondary circuit is made up of several switches, CT group and diode.Wherein, the loop state of simulation secondary circuit is by each
The closure state of switch controls.Such as, any one switch Guan Bi between switch K2, K3, K11 Guan Bi and switch K4-K9, and its
When he switches off, the state of simulation secondary circuit is normal connection；Between switch K2, K11 Guan Bi and switch K4-K9 arbitrarily
One switch Guan Bi, and when other switch off, the state of simulation secondary circuit is loop commutation state；Switch K10 and K11 closes
During conjunction, the state of simulation secondary circuit is CT first short circuit state.It will be appreciated that the state of simulation secondary circuit not only limits
In above-mentioned several states, the closure state switched by control can obtain the loop state of more analog secondary circuit.
By describing this utility model with reference to a small amount of embodiment.But, it is known in those skilled in the art,
As subsidiary Patent right requirement is limited, except this utility model other embodiment disclosed above falls equally
In the range of this utility model.
Normally, all terms used in the claims are all solved in the usual implication of technical field according to them
Release, unless additionally defined clearly wherein.All of reference " one/described/be somebody's turn to do [device, assembly etc.] " is all opened ground
It is construed at least one example in described device, assembly etc., unless otherwise expressly specified.Any method disclosed herein
Step all need not be run, unless explicitly stated otherwise with disclosed order accurately.
Claims (12)
1. for the electric energy meter possessing CT secondary circuit status monitoring function being carried out a special purpose device for global function detection, bag
Include: secondary circuit analog module, constant-current source module, constant pressure source module, rise flow module, loop current voltage detection module and many
Individual epi-position functional module, wherein,
Described constant-current source module, constant pressure source module and liter flow module provide accurate adjustable current value for secondary circuit analog module
And magnitude of voltage；
The loop state of described secondary circuit analog module analog current transformer secondary circuit under different no-load voltage ratios；
Described loop current voltage detection module is for detecting each real-time current value measuring point and reality in simulation secondary circuit
Time magnitude of voltage；
Tested table is connected on the secondary circuit that secondary circuit is simulated by the plurality of epi-position functional module, and calculates quilt
Each measured by survey table measures measuring magnitude of voltage and measuring current value compared with real-time voltage value and real-time current value of point
Error.
Device the most according to claim 1, it is characterised in that described secondary circuit analog module includes current transformer group
With secondary circuit status control module, wherein current transformer group provides the adjustable secondary circuit of no-load voltage ratio, secondary circuit state mould
Intend module by the control of secondary circuit breaker in middle being carried out the switching of secondary circuit state.
Device the most according to claim 1, it is characterised in that described loop state includes: normal connection, loop open circuit, CT
The short-circuit of terminals, loop commutation and CT first short circuit.
Device the most according to claim 1, it is characterised in that described device also includes that secondary circuit state and transformer are cut
Change state display module, be used for showing secondary circuit current state and current transformer ratio handover information.
Device the most according to claim 1, it is characterised in that described device also includes communication module, is used for and special purpose computer
Carry out data communication.
Device the most according to claim 5, it is characterised in that described communication module by RS232, RS485, network or
The mode of GPRS/CDMA and special purpose computer carry out the communication of data.
Device the most according to claim 1, it is characterised in that described secondary circuit analog module, constant-current source module, constant voltage
Source module, liter flow module, loop current voltage detection module and multiple epi-position functional module are installed in pocket watch stage body, and
Described pocket watch stage body is divided into upper and lower two subdivisions.
Device the most according to claim 7, it is characterised in that the plurality of epi-position functional module is divided into upper and lower two row,
And it is arranged on pocket watch stage body front top half abreast.
Device the most according to claim 7, it is characterised in that also install secondary circuit state and mutually in described pocket watch stage body
Sensor switching state display module and communication module, wherein secondary circuit state and transformer switching state display module and communication
Module is installed in pocket watch stage body the latter half.
Device the most according to claim 7, it is characterised in that bottom described pocket watch stage body, castor and fot screw are set.
11. devices according to claim 1, it is characterised in that described device is connected with special purpose computer, described special purpose computer
There is special global function inspection software, and electric energy meter detection parameter is set by special global function inspection software, make control detect
Unit detects automatically.
12. devices according to claim 11, it is characterised in that described special purpose computer also includes power supply output display unit,
The error that epi-position functional module generates is shown in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766650.1U CN205880191U (en) | 2016-07-19 | 2016-07-19 | A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766650.1U CN205880191U (en) | 2016-07-19 | 2016-07-19 | A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880191U true CN205880191U (en) | 2017-01-11 |
Family
ID=57698356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620766650.1U Active CN205880191U (en) | 2016-07-19 | 2016-07-19 | A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205880191U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782211A (en) * | 2018-12-21 | 2019-05-21 | 国网山西省电力公司长治供电公司 | A kind of transformer secondary circuit fault simulation platform |
| CN112415287A (en) * | 2020-11-16 | 2021-02-26 | 中国电力科学研究院有限公司 | Method and system for identifying transformation ratio replacement of metering current transformer |
| CN114089252A (en) * | 2021-10-25 | 2022-02-25 | 青岛鼎信通讯股份有限公司 | Loop inspection calibrating device for energy controller |
-
2016
- 2016-07-19 CN CN201620766650.1U patent/CN205880191U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782211A (en) * | 2018-12-21 | 2019-05-21 | 国网山西省电力公司长治供电公司 | A kind of transformer secondary circuit fault simulation platform |
| CN112415287A (en) * | 2020-11-16 | 2021-02-26 | 中国电力科学研究院有限公司 | Method and system for identifying transformation ratio replacement of metering current transformer |
| CN114089252A (en) * | 2021-10-25 | 2022-02-25 | 青岛鼎信通讯股份有限公司 | Loop inspection calibrating device for energy controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205880191U (en) | A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects | |
| CN103616574B (en) | A kind of electric automobile anti-alone island detection system of energy storage combining inverter and detection method | |
| CN103472433B (en) | Intelligent substation electric energy measuring secondary system virtual load error detection device and method | |
| CN206710585U (en) | The control system of great current mutual inductor site error verification | |
| CN103149471A (en) | Calibration method and calibration device for battery charger and charging pile | |
| CN102520385A (en) | Automatic error calibration method for single-phase electrical energy meter | |
| CN107576906A (en) | A kind of portable relay checking platform and its application method | |
| CN209673956U (en) | A kind of VSC, V7 type contactor handcart state detector system | |
| CN208156105U (en) | Function test system based on minimum battery management system | |
| CN104777444A (en) | Lightning arrester discharge counter comprehensive calibration instrument and calibration method | |
| CN106059041A (en) | Wind-solar energy storage data detection and management system | |
| CN109541483A (en) | A kind of simulated battery system | |
| CN203688108U (en) | Transformer temperature measurement system calibration meter | |
| CN206757028U (en) | A kind of three-phase electric energy meter false wiring detection means | |
| CN105223470B (en) | A kind of Distribution Network Failure localization method based on failure high-frequency information | |
| CN111693924B (en) | System and method for detecting monitoring performance of voltage transformer on-line monitoring device | |
| CN201583623U (en) | Calibrating device of leakage current tester | |
| CN205404719U (en) | Mutual -inductor common return multipoint earthing detector | |
| CN206515459U (en) | A kind of actual loading test system of electric energy meter | |
| CN103064054B (en) | The matrix majorization method of electric power meter analogue system and wiring thereof | |
| CN110703180A (en) | Multi-mode intelligent substation simulation system and method | |
| CN206557369U (en) | High-voltage electric-energy meter on-line monitoring system based on carrier communication | |
| CN105974332B (en) | Intrinsic safety power performance dynamic test system | |
| CN205139340U (en) | Photovoltaic grid -connected inverter MPPT precision and electrical energy conversion efficiency detection device | |
| CN208076625U (en) | A kind of type full-automatic transformation ratio tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |