CN106501749A - A kind of CT transient characterisitics and actual remanent magnetism detecting system - Google Patents
A kind of CT transient characterisitics and actual remanent magnetism detecting system Download PDFInfo
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- CN106501749A CN106501749A CN201610949069.8A CN201610949069A CN106501749A CN 106501749 A CN106501749 A CN 106501749A CN 201610949069 A CN201610949069 A CN 201610949069A CN 106501749 A CN106501749 A CN 106501749A
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- optical fiber
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- regulated kinase
- transient
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The present invention relates to CT detecting systems, specifically a kind of CT transient characterisitics and actual remanent magnetism detecting system.The present invention solves the problems, such as that existing CT detecting systems lack rational network topology structure, lack the efficient transmission medium of unification.A kind of CT transient characterisitics and actual remanent magnetism detecting system, including N group measurement modules, 2N Signal-regulated kinase, A/D modular converters, DSP, display, keyboard, communication interface, optical fiber；Wherein, every group of measurement module includes a transient error measurement module and an excitation property measurement module；N number of transient error measurement module is connected one to one with wherein N number of Signal-regulated kinase by optical fiber；N number of excitation property measurement module is connected one to one with addition N number of Signal-regulated kinase by optical fiber；2N Signal-regulated kinase is connected with A/D modular converters by optical fiber, and 2N Signal-regulated kinase collectively forms stelliform connection topology configuration with A/D modular converters.The present invention is detected suitable for CT.
Description
Technical field
The present invention relates to CT detecting systems, specifically a kind of CT transient characterisitics and actual remanent magnetism detecting system.
Background technology
CT（Current Tranfer, current transformer）As current signal progress of disease element, it is widely used in power system
Monitoring, protection, the record technical field such as ripple and range finding.In actual applications, the transient characterisitics of CT and actual remanent magnetism are directly connected to
The normal operation of power system.Therefore, in order to ensure the normal operation of power system, at present generally using CT detecting systems come right
The transient characterisitics of CT and actual remanent magnetism are detected.But existing CT detecting systems are limited due to self structure, generally existing is such as
Lower problem：First, existing CT detecting systems generally lack rational network topology structure, which is caused to there is data transfer unstable
Problem, thus directly affect the accuracy of detection.Second, existing CT detecting systems generally lack unified efficient transmission being situated between
Matter, causes which to there is a problem of that data transmission bauds is slow, data sharing is poor, thus the same accuracy for affecting to detect.It is based on
This, it is necessary to invent a kind of brand-new CT detecting systems, with solve existing CT detecting systems lack rational network topology structure,
Lack the problem of the efficient transmission medium of unification.
Content of the invention
The present invention lacks rational network topology structure, lacks unified efficient transmission to solve existing CT detecting systems
The problem of medium, there is provided a kind of CT transient characterisitics and actual remanent magnetism detecting system.
The present invention adopts the following technical scheme that realization：
A kind of CT transient characterisitics and actual remanent magnetism detecting system, including N group measurement modules, 2N Signal-regulated kinase, A/D conversions
Module, DSP, display, keyboard, communication interface, optical fiber；Wherein, every group of measurement module includes a transient error measurement mould
Block and an excitation property measurement module；N number of transient error measurement module passes through optical fiber with wherein N number of Signal-regulated kinase one by one
Corresponding connection；N number of excitation property measurement module is connected one to one with addition N number of Signal-regulated kinase by optical fiber；2N letter
Number conditioning module is connected with A/D modular converters by optical fiber, and 2N Signal-regulated kinase is collectively formed with A/D modular converters
Stelliform connection topology configuration；A/D modular converters are connected with DSP by optical fiber；DSP is connect with display, keyboard, communication respectively by optical fiber
Mouth connection；N is positive integer.
During work, correspondingly on N number of CT, communication interface is connected N groups measurement module with external equipment.Specifically
The course of work is as follows：The transient error data of the N number of CT of N number of transient error measurement module Real-time Collection, and will be gathered by optical fiber
To transient error data sent to wherein N number of Signal-regulated kinase in real time, N number of Signal-regulated kinase is to the transient state that receives
Error information is nursed one's health in real time, and the transient error data after optical fiber is by conditioning are sent in real time to A/D modular converters.N
The excitation property data of the N number of CT of individual excitation property measurement module Real-time Collection, and by optical fiber by the excitation property number for collecting
Send when factually in addition N number of Signal-regulated kinase, N number of Signal-regulated kinase carries out reality to the excitation property data for receiving
When nurse one's health, and the excitation property data after optical fiber is by conditioning are sent in real time to A/D modular converters.A/D modular converters are docked
The data for receiving（Transient error data and excitation property data）Changed in real time, and the data reality after optical fiber is by conversion
When send to DSP.DSP is analyzed in real time to the data for receiving, and generates transient process characteristic curve in real time according to analysis result
With actual remanent magnetism curve, then transient process characteristic curve and actual remanent magnetism curve are sent in real time to display by optical fiber and shown
Show, the transient characterisitics detection and actual remanent magnetism for being achieved in CT is detected.In the process, external equipment can be with by communication interface
Transient process characteristic curve and actual remanent magnetism curve in DSP is read in real time.Staff can be set to DSP in real time by keyboard
Put.
Said process is based on, compared with existing CT detecting systems, a kind of CT transient characterisitics of the present invention and reality are surplus
Magnetic detection system possesses following advantage by adopting brand new：First, the present invention is changed using Signal-regulated kinase, A/D
Module composition stelliform connection topology configuration, which is by using stelliform connection topology configuration simple structure, simple control, fault diagnosis and isolation
Easily, the advantage of convenient service, favorable expandability, possesses rational network topology structure, so that data transfer is more stable,
So as to the accuracy of detection has been effectively ensured.Second, the present invention adopts optical fiber as transmission medium, which is by using optical fiber frequency band
Wide, low, the lightweight, strong antijamming capability of loss, fidelity are high, the advantage of dependable performance, possess unified efficient transmission Jie
Matter so that data transmission bauds faster, data sharing higher, so as to be equally effectively ensured detection accuracy.
Present configuration is reasonable, it is ingenious to design, and efficiently solves existing CT detecting systems and lacks rational network topology knot
Structure, the problem for lacking the efficient transmission medium of unification, it is adaptable to which CT is detected.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Specific embodiment
A kind of CT transient characterisitics and actual remanent magnetism detecting system, including N group measurement modules, 2N Signal-regulated kinase, A/D
Modular converter, DSP, display, keyboard, communication interface, optical fiber；Wherein, every group of measurement module includes that a transient error is surveyed
Amount module and an excitation property measurement module；N number of transient error measurement module is by optical fiber and wherein N number of Signal-regulated kinase
Connect one to one；N number of excitation property measurement module is connected one to one with addition N number of Signal-regulated kinase by optical fiber；2N
Individual Signal-regulated kinase is connected with A/D modular converters by optical fiber, and 2N Signal-regulated kinase is common with A/D modular converters
Constitute stelliform connection topology configuration；A/D modular converters are connected with DSP by optical fiber；DSP by optical fiber respectively with display, keyboard, logical
Communication interface connects；N is positive integer.
When being embodied as, the DSP is TMS320C6201 types DSP；The optical fiber is single-mode fiber.
Claims (2)
1. a kind of CT transient characterisitics and actual remanent magnetism detecting system, it is characterised in that：Adjust including N group measurement modules, 2N signal
Reason module, A/D modular converters, DSP, display, keyboard, communication interface, optical fiber；Wherein, every group of measurement module includes one
Transient error measurement module and an excitation property measurement module；N number of transient error measurement module is by optical fiber and wherein N number of letter
Number conditioning module connects one to one；N number of excitation property measurement module is by optical fiber and in addition one a pair of N number of Signal-regulated kinase
Should connect；2N Signal-regulated kinase is connected with A/D modular converters by optical fiber, and 2N Signal-regulated kinase is turned with A/D
Mold changing block collectively forms stelliform connection topology configuration；A/D modular converters are connected with DSP by optical fiber；DSP by optical fiber respectively with display
Device, keyboard, communication interface connection；N is positive integer.
2. a kind of CT transient characterisitics according to claim 1 and actual remanent magnetism detecting system, it is characterised in that：The DSP
For TMS320C6201 types DSP；The optical fiber is single-mode fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610949069.8A CN106501749A (en) | 2016-11-03 | 2016-11-03 | A kind of CT transient characterisitics and actual remanent magnetism detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610949069.8A CN106501749A (en) | 2016-11-03 | 2016-11-03 | A kind of CT transient characterisitics and actual remanent magnetism detecting system |
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| CN106501749A true CN106501749A (en) | 2017-03-15 |
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| CN201610949069.8A Pending CN106501749A (en) | 2016-11-03 | 2016-11-03 | A kind of CT transient characterisitics and actual remanent magnetism detecting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342988A (en) * | 2018-12-20 | 2019-02-15 | 广东电网有限责任公司 | A kind of remanence of current transformer influence test method, apparatus and system |
| CN112462303A (en) * | 2021-01-28 | 2021-03-09 | 浙江艾罗网络能源技术股份有限公司 | Connection identification detection method of power grid current sensor |
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| CN101004441A (en) * | 2007-01-25 | 2007-07-25 | 上海交通大学 | Method for measuring coefficient of residual magnetism based on alternating current method |
| CN201514474U (en) * | 2009-07-03 | 2010-06-23 | 武汉义天科技有限公司 | Parameter test instrument of current transformer |
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| CN101004441A (en) * | 2007-01-25 | 2007-07-25 | 上海交通大学 | Method for measuring coefficient of residual magnetism based on alternating current method |
| CN201514474U (en) * | 2009-07-03 | 2010-06-23 | 武汉义天科技有限公司 | Parameter test instrument of current transformer |
| CN103017825A (en) * | 2012-12-04 | 2013-04-03 | 浙江大学 | Wireless bridge health monitoring device with multi-energy supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342988A (en) * | 2018-12-20 | 2019-02-15 | 广东电网有限责任公司 | A kind of remanence of current transformer influence test method, apparatus and system |
| CN112462303A (en) * | 2021-01-28 | 2021-03-09 | 浙江艾罗网络能源技术股份有限公司 | Connection identification detection method of power grid current sensor |
| CN112462303B (en) * | 2021-01-28 | 2021-05-04 | 浙江艾罗网络能源技术股份有限公司 | Connection identification detection method of power grid current sensor |
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Application publication date: 20170315 |
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