CN206075657U - A kind of experimental provision of transmission line simulation relay protection - Google Patents
A kind of experimental provision of transmission line simulation relay protection Download PDFInfo
- Publication number
- CN206075657U CN206075657U CN201620654683.7U CN201620654683U CN206075657U CN 206075657 U CN206075657 U CN 206075657U CN 201620654683 U CN201620654683 U CN 201620654683U CN 206075657 U CN206075657 U CN 206075657U
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- Prior art keywords
- circuit
- experimental provision
- current module
- line
- module
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Abstract
The utility model discloses a kind of experimental provision of transmission line simulation relay protection, including primary circuit and secondary circuit, 35kV three phase mains and its static load are simulated using 380V three phase mains in primary circuit；Secondary circuit includes line protective devices, and line protective devices include voltage circuit module, measurement current module and protective current module；Primary circuit includes multiple resistance being connected with each other and inductance element, and inductance element outfan distinguishes voltage circuit module, measurement current module and the protective current module of connection line protection device.Experimental provision line construction of the present utility model is simple; clear principle; the secondary circuit of the primary circuit of transmission line of electricity and relay protection from principle and is presented to into learner in structure not only, while also allowing learner to dismount secondary circuit, the experimental real-training effect of learner is improved.
Description
Technical field
This utility model belongs to a kind of experiment device for teaching, and in particular to a kind of experiment of transmission line simulation relay protection
Device.
Background technology
At present, it is domestic to use relatively broad relay protection synthesis experiment platform, typically using enclosed construction, experiment religion
Class hour, according to the intrinsic template wiring of experiment porch and parameter setting.Experiment content, method are single.It is short out for explanation power transmission line
The experimental teaching of road protection General Principle is more convenient.Due to adopting enclosed construction, learner understand experiment porch system
System internal structure, protection act sequence and signal processing flow, more to once, second loop return wiring and effect cannot set up directly perceived
Impression, it is impossible to carry out comprehensive practice-training teaching, the comprehensive intuitive concept of Power System Shortcuts and its protection is understood to training student
It is unfavorable.
Utility model content
The purpose of this utility model is to provide a kind of experimental provision of transmission line simulation relay protection, line construction letter
Single, the secondary circuit of the primary circuit of transmission line of electricity and relay protection is not only represented from principle and in structure by clear principle
To learner, while also allowing learner to dismount secondary circuit, the experimental real-training effect of learner is improved.
For achieving the above object, one embodiment of the present utility model is adopted the technical scheme that：
Including primary circuit and secondary circuit, 35kV three phase mains and its quiet is simulated using 380V three phase mains in primary circuit
State load；Secondary circuit includes line protective devices, and line protective devices include voltage circuit module, measurement current module and guarantor
Shield current module；Primary circuit includes multiple resistance being connected with each other and inductance element, inductance element outfan difference connecting line
The voltage circuit module of line protection device, measurement current module and protective current module.
What the experimental provision of transmission line simulation relay protection of the present utility model was produced has the beneficial effect that：
1. line construction is simple, clear principle, not only by the primary circuit of transmission line of electricity and the secondary circuit of relay protection
From in principle and learner is presented in structure, while also allowing learner to dismount secondary circuit, improve learner
Experimental real-training effect.
2. Opening Experiments Platform is utilized, and experimental principle, connection and control loop clear logic are conducive to carrying
High relay protection experimental teaching, real training and combined training effect.Opening Experiments Platform can also be carried out once, secondary returning LUSHEN
Number adjustment, for various education experiments and scientific research attribute testing.
Description of the drawings
Fig. 1 is a kind of structure of one embodiment of the experimental provision of transmission line simulation relay protection of the present utility model
Schematic diagram.
Specific embodiment
It is to make the purpose of this utility model, technical scheme and advantage clearer, concrete below in conjunction with this utility model
Embodiment and corresponding accompanying drawing are clearly and completely described to technical solutions of the utility model.
With reference to Fig. 1, Fig. 1 be experimental provision once, second loop return wiring schematic diagram, the reality of transmission line simulation relay protection
Experiment device includes primary circuit and secondary circuit, and 35kV three phase mains and its static state are simulated using 380V three phase mains in primary circuit
Load；Secondary circuit includes line protective devices, and line protective devices include voltage circuit module, measurement current module and protection
Current module；Primary circuit includes multiple resistance being connected with each other and inductance element, inductance element outfan difference connection line
The voltage circuit module of protection device, measurement current module and protective current module.
One second part of circuit, using L1-L3, R1-R3 simulation 15km transmission lines of electricity, RL mimic buss transmission line of electricity are born
Lotus.Consider the different distributions of Typical Route short dot, line fault point is set at output node 5,7 and 9 respectively.L1-L3,
The relevant parameter of R1-R3, RL is shown in Fig. 1.The device can be by changing L1-L3, and the parameter of R1-R3, RL realizes various power transmission lines
The simulation on road.
Transmission line simulation is constituted experimental provision the primary circuit of experimental provision with equivalent resistance, inductance.Due to former defeated
Electric line uses 35kV three phase mains and corresponding static load, in experimental provision, is carried out using 380V three phase mains
Simulation.Simulation primary circuit can completely reproduce the physical characteristics of former transmission line of electricity.On secondary circuit, using cubic CSC-280
Line protective devices are used as main protection location.To meet the input characteristics of Microcomputer Protection, specially devise current transformer and
Voltage transformer no-load voltage ratio, so as to structure and it is original on realize it is consistent with the mechanism of original transmission line of electricity and relay protection structure
Structure.Whole device presents the dynamic characteristic consistent with former 35KV transmission lines of electricity completely in experiment and protection act is special
Property.On the premise of adjustment primary circuit parameter, the experimental provision can also be used for the operating chacteristics examination of 10KV fuse switches
Test.
At output node 5, mimic buss stage casing is broken down.Meanwhile, using the closure of KM1, realize sending out for short trouble
It is raw.Additionally, to simulate various short troubles, by the closure of QZ1, realizing three-phase shortcircuit, by the disconnection of QZ1, realizing alternate
Short circuit.
At output node 7 and 9, mimic buss stage casing is broken down.Meanwhile, using the closure of KM2, realize short trouble
Occur.Additionally, to simulate various short troubles, by the closure of QZ2, realizing three-phase shortcircuit, by the disconnection of QZ2, realizing phase
Between short circuit.
Additionally, the value by adjusting RL resistors, simulates load variations.
In one embodiment of the present utility model, the resistance of the resistive element of primary circuit is adjustable.
In one embodiment of the present utility model, line protective devices are exported by X3 logica boards, and are passed through
Relay realizes the action message of chopper.
The signal input of CSC-280, obtains the load and short circuit current of transmission line of electricity using LH1, LH2.Taken by YH
Obtain the voltage of transmission line of electricity.
The logic output of CSC-280, is exported by X3 logica boards, and is passed through TQ and HQ relays interrelated logic
Device realizes the action message of chopper KM.
Above-mentioned embodiment is used for illustrating this utility model, rather than this utility model is limited, in this reality
With any modifications and changes in new spirit and scope of the claims, made to this utility model, this is both fallen within
The protection domain of utility model.
Claims (3)
1. a kind of experimental provision of transmission line simulation relay protection, it is characterised in that：Including primary circuit and secondary circuit, institute
State primary circuit and 35kV three phase mains and its static load are simulated using 380V three phase mains；The secondary circuit includes that circuit is protected
Protection unit, the line protective devices include voltage circuit module, measurement current module and protective current module；It is described once to return
Road includes multiple resistance being connected with each other and inductance element, and the inductance element outfan distinguishes the electricity of connection line protection device
Pressure return circuit module, measurement current module and protective current module.
2. experimental provision according to claim 1, it is characterised in that：The resistance of the resistive element of the primary circuit can
Adjust.
3. experimental provision according to claim 1 and 2, it is characterised in that：The line protective devices are inserted by X3 logics
Part is exported, and the action message of chopper is realized by relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654683.7U CN206075657U (en) | 2016-06-28 | 2016-06-28 | A kind of experimental provision of transmission line simulation relay protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654683.7U CN206075657U (en) | 2016-06-28 | 2016-06-28 | A kind of experimental provision of transmission line simulation relay protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075657U true CN206075657U (en) | 2017-04-05 |
Family
ID=58422303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620654683.7U Expired - Fee Related CN206075657U (en) | 2016-06-28 | 2016-06-28 | A kind of experimental provision of transmission line simulation relay protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164286A (en) * | 2020-09-23 | 2021-01-01 | 扬州胜文智能科技有限公司 | Power transmission line fault injection simulation device and use method |
-
2016
- 2016-06-28 CN CN201620654683.7U patent/CN206075657U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164286A (en) * | 2020-09-23 | 2021-01-01 | 扬州胜文智能科技有限公司 | Power transmission line fault injection simulation device and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20170628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |