CN107064780A - A kind of circuit detecting method of digital transformer substation - Google Patents
A kind of circuit detecting method of digital transformer substation Download PDFInfo
- Publication number
- CN107064780A CN107064780A CN201710486227.5A CN201710486227A CN107064780A CN 107064780 A CN107064780 A CN 107064780A CN 201710486227 A CN201710486227 A CN 201710486227A CN 107064780 A CN107064780 A CN 107064780A
- Authority
- CN
- China
- Prior art keywords
- transformer substation
- current
- digital transformer
- detecting method
- current signal
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of circuit detecting method of digital transformer substation, including：Step S1, selectes slowdown monitoring circuit to be checked in digital transformer substation, and current acquisition module is accessed, and current signal is gathered in real time；Step S2, is pre-processed to the single current signal of collection；Whether step S3, judge pretreated current signal more than the first predetermined current threshold, if so, alarm；If it is not, into next step；Step S4, records the primary current value, and pass through rolling counters forward n；Step S5, judges whether n is equal to N, N >=5 and for positive integer, if it is not, return to step S1；If so, into next step；Step S6, calculates the average value of n times current signal；Whether step S7, judge average value more than the second predetermined current threshold, if so, alarm；If it is not, then judging qualified.The present invention can accurately and timely realize electric circuit inspection.
Description
Technical field
The present invention relates to transformer station's electric circuit inspection field.
Background technology
Digital transformer substation is secondary by intelligent primary equipment (electronic mutual inductor, intelligent switch etc.) and networking
Equipment layering (process layer, wall, station level) is built, and is set up on the basis of IEC61850 standards and communication specification, Neng Goushi
The modern substations of the information sharing of intelligent electric equipment room and interoperability in existing transformer station.
To ensure the safe and stable operation of transformer station, the monitoring to each circuit in transformer station needs accurately and timely, therefore,
Effectively accurately circuit detecting method is necessary for design.
The content of the invention
It is an object of the invention to provide a kind of circuit detecting method of digital transformer substation, can accurately and timely it realize
Detection.
Realizing the technical scheme of above-mentioned purpose is：A kind of circuit detecting method of digital transformer substation, including：
Step S1, selectes slowdown monitoring circuit to be checked in digital transformer substation, and current acquisition module is accessed, and electric current is gathered in real time
Signal；
Step S2, is pre-processed to the single current signal of collection；
Whether step S3, judge pretreated current signal more than the first predetermined current threshold, if so, alarm；If it is not,
Into next step；
Step S4, records the primary current value, and pass through rolling counters forward n；
Step S5, judges whether n is equal to N, N >=5 and for positive integer, if it is not, return to step S1；If so, into next step；
Step S6, calculates the average value of n times current signal；
Whether step S7, judge average value more than the second predetermined current threshold, if so, alarm；If it is not, then judging qualified.
In the circuit detecting method of above-mentioned digital transformer substation, second predetermined current threshold is pre- described first
If in current threshold.
In the circuit detecting method of above-mentioned digital transformer substation, it is described to current signal pretreatment include filtering with
Amplification.
The beneficial effects of the invention are as follows：The present invention is judged and multiple averaging value current threshold by single current threshold respectively
Value judges, can accurately and timely observation circuit situation, arranged early before having troubles, and prevent single to malfunction, so as to ensure
The even running of transformer station.
Brief description of the drawings
Fig. 1 is the flow chart of the circuit detecting method of the digital transformer substation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Referring to Fig. 1, the circuit detecting method of the digital transformer substation of the present invention, comprises the following steps：
Step S1, selectes slowdown monitoring circuit to be checked in digital transformer substation, and current acquisition module is accessed, and electric current is gathered in real time
Signal.
Step S2, the pretreatment that the single current signal of collection is filtered and amplified.
Whether step S3, judge pretreated current signal more than the first predetermined current threshold, if so, alarm.If it is not,
Into next step.
Step S4, records the primary current value, and count n by counter n=n+1.
Step S5, judges whether n is equal to N, N >=5 and for positive integer, if it is not, return to step S1；If so, into next step.
Step S6, calculates the average value of n times current signal.
Whether step S7, judge average value more than the second predetermined current threshold, if so, alarm.If it is not, then judging qualified.
Obviously, the second predetermined current threshold so effectively prevents the problem of single malfunctions in the first predetermined current threshold.
Above example is used for illustrative purposes only, rather than limitation of the present invention, about the technology people of technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all equivalent
Technical scheme should also belong to scope of the invention, should be limited by each claim.
Claims (3)
1. a kind of circuit detecting method of digital transformer substation, it is characterised in that including：
Step S1, selectes slowdown monitoring circuit to be checked in digital transformer substation, and current acquisition module is accessed, in real time collection electric current letter
Number；
Step S2, is pre-processed to the single current signal of collection；
Whether step S3, judge pretreated current signal more than the first predetermined current threshold, if so, alarm；If it is not, into
Next step；
Step S4, records the primary current value, and pass through rolling counters forward n；
Step S5, judges whether n is equal to N, N >=5 and for positive integer, if it is not, return to step S1；If so, into next step；
Step S6, calculates the average value of n times current signal；
Whether step S7, judge average value more than the second predetermined current threshold, if so, alarm；If it is not, then judging qualified.
2. the circuit detecting method of digital transformer substation according to claim 1, it is characterised in that the described second default electricity
Threshold value is flowed in first predetermined current threshold.
3. the circuit detecting method of digital transformer substation according to claim 1, it is characterised in that described to believe electric current
Number pretreatment include filtering and amplification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486227.5A CN107064780A (en) | 2017-06-23 | 2017-06-23 | A kind of circuit detecting method of digital transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486227.5A CN107064780A (en) | 2017-06-23 | 2017-06-23 | A kind of circuit detecting method of digital transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107064780A true CN107064780A (en) | 2017-08-18 |
Family
ID=59613238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710486227.5A Pending CN107064780A (en) | 2017-06-23 | 2017-06-23 | A kind of circuit detecting method of digital transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107064780A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861193A (en) * | 2018-12-29 | 2019-06-07 | 樊嵩 | A kind of earth leakage protecting method and its system of electric cabinet |
| CN112595909A (en) * | 2020-11-27 | 2021-04-02 | 江苏中浩电力工程有限公司 | Method for intelligent substation detection test |
| CN112630495A (en) * | 2019-10-08 | 2021-04-09 | 无锡华润矽科微电子有限公司 | Method for testing PING current, corresponding circuit for testing PING current and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122810A (en) * | 2011-03-11 | 2011-07-13 | 上海诺雅克电气有限公司 | Current diagnosing device and method for monitoring state of current transformer |
| CN102830295A (en) * | 2011-06-15 | 2012-12-19 | 上海电力通信有限公司 | Detecting system and detecting method of digital transformer substation protecting loop |
| CN103457791A (en) * | 2013-08-19 | 2013-12-18 | 国家电网公司 | Self-diagnosis method of network sampling and control link of intelligent substation |
| CN103915897A (en) * | 2014-02-28 | 2014-07-09 | 电信科学技术仪表研究所 | Method and device for monitoring digital substation sampled values |
| CN104678265A (en) * | 2015-01-30 | 2015-06-03 | 广东雅达电子股份有限公司 | Detection device and detection method for series arc faults |
| CN106324393A (en) * | 2016-08-16 | 2017-01-11 | 安徽省瑞鼎电子技术有限公司 | Online monitoring system for work equipment of intelligent transformer station |
| CN106771522A (en) * | 2016-12-15 | 2017-05-31 | 重庆大学 | A kind of substation equipment overcurrent aggregation of data acquisition system and method |
-
2017
- 2017-06-23 CN CN201710486227.5A patent/CN107064780A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122810A (en) * | 2011-03-11 | 2011-07-13 | 上海诺雅克电气有限公司 | Current diagnosing device and method for monitoring state of current transformer |
| CN102830295A (en) * | 2011-06-15 | 2012-12-19 | 上海电力通信有限公司 | Detecting system and detecting method of digital transformer substation protecting loop |
| CN103457791A (en) * | 2013-08-19 | 2013-12-18 | 国家电网公司 | Self-diagnosis method of network sampling and control link of intelligent substation |
| CN103915897A (en) * | 2014-02-28 | 2014-07-09 | 电信科学技术仪表研究所 | Method and device for monitoring digital substation sampled values |
| CN104678265A (en) * | 2015-01-30 | 2015-06-03 | 广东雅达电子股份有限公司 | Detection device and detection method for series arc faults |
| CN106324393A (en) * | 2016-08-16 | 2017-01-11 | 安徽省瑞鼎电子技术有限公司 | Online monitoring system for work equipment of intelligent transformer station |
| CN106771522A (en) * | 2016-12-15 | 2017-05-31 | 重庆大学 | A kind of substation equipment overcurrent aggregation of data acquisition system and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861193A (en) * | 2018-12-29 | 2019-06-07 | 樊嵩 | A kind of earth leakage protecting method and its system of electric cabinet |
| CN109861193B (en) * | 2018-12-29 | 2021-03-26 | 樊嵩 | Leakage protection method and system of electric cabinet |
| CN112630495A (en) * | 2019-10-08 | 2021-04-09 | 无锡华润矽科微电子有限公司 | Method for testing PING current, corresponding circuit for testing PING current and application thereof |
| CN112595909A (en) * | 2020-11-27 | 2021-04-02 | 江苏中浩电力工程有限公司 | Method for intelligent substation detection test |
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| 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: 20170818 |