CN203786263U - Circuit and system for monitoring - Google Patents
Circuit and system for monitoring Download PDFInfo
- Publication number
- CN203786263U CN203786263U CN201320733890.8U CN201320733890U CN203786263U CN 203786263 U CN203786263 U CN 203786263U CN 201320733890 U CN201320733890 U CN 201320733890U CN 203786263 U CN203786263 U CN 203786263U
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- shunt
- circuit
- monitoring circuit
- current monitoring
- control loop
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 53
- 238000004458 analytical method Methods 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a circuit and a system for monitoring. The circuit comprises a control circuit, a current monitoring circuit, and a processor. The current monitoring circuit is connected with the control circuit, and is used to acquire current signals of the control circuit. The processor is connected with the current monitoring circuit, and is used to perform fault analysis on a breaker in the control circuit according to the current signals. The circuit and the system solve problems in the prior art that whether the circuit trip is fault or automatic protection cannot be determined, and safety of the control circuit cannot be ensured. The circuit and the system realize real-time accurate recording and can reflect operation conditions of the breaker in real time.
Description
Technical field
The utility model relates to control circuit field, in particular to a kind of observation circuit and system.
Background technology
At present, in prior art, not to whether correct operation monitoring means of breaker control circuit, often occur isolating switch unknown cause breaking, subsequent analysis difficulty, the analysis of causes thoroughly do not put in place.To avoiding abnormal the taked methods of similar accident that first-hand foundation can not be provided, be unfavorable for the safety in production of electrical network.
Electrical network is subject to extraneous various factors affects frequent unknown cause breaking; part situation can effecting reaction failure condition from protection and automated information; small part situation is in the time of isolating switch abnormal failure; owing to lacking whether correct operation Monitoring Design and method of control loop; be difficult to distinguish isolating switch or the breaking of protecting aut.eq. reason to cause; the situation that subsequent analysis difficulty, the analysis of causes thoroughly do not put in place often occurs, and causes a lot of doubt to production technology personnel.
For cannot decision circuitry breaking in prior art be fault or protection automatically, thereby cannot ensure the problem of control loop safety, not yet propose at present effective solution.
Utility model content
Cannot decision circuitry breaking be fault or protection automatically for correlation technique; thereby cannot ensure the problem of control loop safety, not yet propose at present effective solution, for this reason; fundamental purpose of the present utility model is to provide a kind of observation circuit and system, to address the above problem.
To achieve these goals, according on the other hand of the present utility model, provide a kind of observation circuit, this circuit comprises: control loop; Current monitoring circuit, is connected with control loop, for obtaining the current signal of control loop; Processor, is connected with current monitoring circuit, for the isolating switch of control loop being carried out to fault analysis according to current signal.
Further, processor comprises: comparer, be connected with current monitoring circuit, and for according to the size of current signal and predetermined threshold value, determine whether isolating switch exists fault.
Further, control loop comprises close a floodgate shunt and separating brake shunt, and current signal comprises switching signal and sub-gate signal, and wherein, current monitoring circuit comprises: the first current monitoring circuit, is connected with the shunt of closing a floodgate, for obtaining switching signal; The second current monitoring circuit, is connected with separating brake, along separate routes for obtaining sub-gate signal.
Further, the first current monitoring circuit comprises the first shunt, closes a floodgate and comprises along separate routes: first controls handgrip, and first end is connected with power supply, and the second end is connected with the first end of the first shunt; The first end of the first auxiliary switch of isolating switch is connected with the second end of the first shunt; Closing coil, its first end is connected with the second end of the first auxiliary switch, and the second end is connected with power supply.
Further, the first current monitoring circuit comprises the second shunt, closes a floodgate and also comprises along separate routes: combined floodgate pilot lamp, and first end is connected with the first end of the second shunt, and the second end is connected with power supply; The second end of the second shunt is connected with the first end of the first auxiliary switch.
Further, the second current monitoring circuit comprises the 3rd shunt, and separating brake comprises along separate routes: second controls handgrip, and first end is connected with power supply, and the second end is connected with the first end of the 3rd shunt; The first end of the second auxiliary switch of isolating switch is connected with the second end of the 3rd shunt; Switching winding, its first end is connected with the second end of the second auxiliary switch, and the second end is connected with power supply.
Further, the second current monitoring circuit comprises the 4th shunt, and separating brake also comprises along separate routes: separating brake pilot lamp, and first end is connected with the first end of the 4th shunt, and the second end is connected with power supply; The second end of the 4th shunt is connected with the first end of the second auxiliary switch.
Further, the first end of control loop is connected with power supply by the first fuse, and the second end of control loop is connected with power supply by the second fuse.
To achieve these goals, according on the other hand of the present utility model, provide a kind of monitoring system, this system comprises: a kind of observation circuit.
Pass through the utility model, can be by the current signal in current monitoring circuit Monitoring and Controlling loop, then processor carries out fault analysis according to current signal to the isolating switch in control loop, can distinguish the action situation of each branch road in control loop by the utility model, thereby become the first-hand foundation of accident abnormality of analysing in depth in control loop, having solved in prior art decision circuitry breaking to be fault or protection automatically, thereby cannot ensure the problem of control loop safety, realize real-time accurate recording and reflected the action situation of isolating switch, thereby can reduce exception malfunction ratio, to ensure power network safety operation.
Brief description of the drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to the structural representation of the observation circuit of the utility model embodiment; And
Fig. 2 is according to the circuit diagram of observation circuit embodiment illustrated in fig. 1.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Fig. 1 is according to the structural representation of the observation circuit of the utility model embodiment.As shown in Figure 1, this circuit can comprise: control loop 10; Current monitoring circuit 30, is connected with control loop 10, for obtaining the current signal of control loop; Processor 50, is connected with current monitoring circuit 30, for the isolating switch of control loop being carried out to fault analysis according to current signal.
Adopt above-described embodiment of the present utility model, can be by the current signal in current monitoring circuit Monitoring and Controlling loop, then processor carries out fault analysis according to current signal to the isolating switch in control loop, can distinguish the action situation of each branch road in control loop by the utility model, thereby become the first-hand foundation of accident abnormality of analysing in depth in control loop, having solved in prior art decision circuitry breaking to be fault or protection automatically, thereby cannot ensure the problem of control loop safety, realize real-time accurate recording and reflected the action situation of isolating switch, thereby can reduce exception malfunction ratio, to ensure power network safety operation.
According to above-described embodiment of the present utility model, processor 50 can comprise: comparer, be connected with current monitoring circuit, and for according to the size of current signal and predetermined threshold value, determine whether isolating switch exists fault.
In the above embodiment of the present invention, control loop 10 can comprise close a floodgate shunt and separating brake shunt, and current signal comprises switching signal and sub-gate signal, wherein, current monitoring circuit 30 can comprise: the first current monitoring circuit, is connected with the shunt of closing a floodgate, for obtaining switching signal; The second current monitoring circuit, is connected with separating brake, along separate routes for obtaining sub-gate signal.
Particularly, current monitoring circuit can be installed in protection screen, the switching signal of first current monitoring circuit that can obtain by processor and the sub-gate signal of the second current monitoring circuit, and obtain the current value of two shunt according to switching signal and sub-gate signal, while being recorded in isolating switch action, each current value along separate routes, and provide failure wave-recording function, during for analysis of failure, each position action situation of secondary circuit provides foundation, can analyze judgement is isolating switch correct operation, or protection, there is the misoperation extremely causing in aut.eq. and breaker mechanism body apparatus.
According to above-described embodiment of the present utility model, as shown in Figure 2, the first current monitoring circuit can comprise the first shunt FLQ1, closes a floodgate and can comprise along separate routes: first controls handgrip K1, first end is connected with power supply, and the second end is connected with the first end of the first shunt FLQ1; The first end of the first auxiliary switch DL1 of isolating switch is connected with the second end of the first shunt; Closing coil HC, its first end is connected with the second end of the first auxiliary switch DL1, and the second end is connected with power supply.Particularly, the first first end of controlling handgrip K1 is connected with the positive pole of power supply, and the second end of closing coil HC is connected with the negative pole of power supply.
Wherein, the second end of the first shunt FLQ1 can be not shown by switch TBJ() be connected with the first end of the first auxiliary switch DL1.
According to above-described embodiment of the present utility model, the first current monitoring circuit can comprise the second shunt FLQ2, closes a floodgate and can also comprise along separate routes: combined floodgate pilot lamp L1, and first end is connected with the first end of the second shunt, and the second end is connected with power supply; The second end of the second shunt FLQ2 is connected with the first end of the first auxiliary switch DL1.
In above-described embodiment of the present utility model, the second current monitoring circuit can comprise the 3rd shunt FLQ3, and separating brake can comprise along separate routes: second controls handgrip K2, and first end is connected with power supply, and the second end is connected with the first end of the 3rd shunt FLQ3; The first end of the second auxiliary switch DL2 of isolating switch is connected with the second end of the 3rd shunt; Switching winding TQ, its first end is connected with the second end of the second auxiliary switch, and the second end is connected with power supply.Particularly, the second first end of controlling handgrip K2 is connected with the positive pole of power supply, and the second end of switching winding TQ is connected with the negative pole of power supply.
In above-described embodiment of the present utility model, the second current monitoring circuit can comprise the 4th shunt FLQ4, and separating brake can also comprise along separate routes: separating brake pilot lamp L2, and first end is connected with the first end of the 4th shunt FLQ4, and the second end is connected with power supply; The second end of the 4th shunt FLQ4 is connected with the first end of the second auxiliary switch DL2.
Wherein, the separating brake pilot lamp L2 in above-described embodiment can be red light, and combined floodgate pilot lamp L1 can be green light.
As shown in Figure 2, the first end of control loop is connected with power supply by the first fuse RD1, and the second end of control loop is connected with power supply by the second fuse RD2.
Shunt in above-described embodiment all can be monitored 20ms to 100ms timeliness, and 0.5A is to 10A electric current.By monitoring the current value of above 4 shunts; while being recorded in isolating switch action; the electric current at protection, aut.eq. and each position of breaker mechanism body; and provide failure wave-recording function; during for analysis of failure, each position action situation of secondary circuit provides foundation; can analyze judgement is isolating switch correct operation, or the misoperation extremely causing appears in protection, aut.eq. and breaker mechanism body apparatus.
The utility model also provides a kind of monitoring system, can comprise any one observation circuit in above-described embodiment.
Adopt above-described embodiment of the present utility model, can be by the current signal in current monitoring circuit Monitoring and Controlling loop, then processor carries out fault analysis according to current signal to the isolating switch in control loop, can distinguish the action situation of each branch road in control loop by the utility model, thereby become the first-hand foundation of accident abnormality of analysing in depth in control loop, having solved in prior art decision circuitry breaking to be fault or protection automatically, thereby cannot ensure the problem of control loop safety, realize real-time accurate recording and reflected the action situation of isolating switch, thereby can reduce exception malfunction ratio, to ensure power network safety operation.
The utility model effectively monitoring breaker when action; the electric current at protection, aut.eq. and each position of breaker mechanism body; can analyse in depth judgement is isolating switch correct operation; or there is the misoperation extremely causing in protection, aut.eq. and breaker mechanism body apparatus; to failure accident, analysis provides strong foundation; greatly reduce partial fault crash analysis not deeply; the measure of taking does not have specific aim; thereby can not effectively avoid the risk again occurring of similar accident, guarantee power network safety operation.
From above description, can find out, the utility model has been realized following technique effect: adopt the utility model, can be by the current signal in current monitoring circuit Monitoring and Controlling loop, then processor carries out fault analysis according to current signal to the isolating switch in control loop, can distinguish the action situation of each branch road in control loop by the utility model, thereby become the first-hand foundation of accident abnormality of analysing in depth in control loop, having solved in prior art decision circuitry breaking to be fault or protection automatically, thereby cannot ensure the problem of control loop safety, realize real-time accurate recording and reflected the action situation of isolating switch, thereby can reduce exception malfunction ratio, to ensure power network safety operation.
The claimed controller of the application and each assembly that forms this controller are all a kind of entity products that has definite shape, constructs and occupy certain space.For example, processor, comparer etc. are all can computer equipment, terminal or server independent operating, that have particular hardware structure.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. an observation circuit, is characterized in that, comprising:
Control loop;
Current monitoring circuit, is connected with described control loop, for obtaining the current signal of described control loop;
Processor, is connected with described current monitoring circuit, for the isolating switch of described control loop being carried out to fault analysis according to described current signal;
Wherein, described processor comprises: comparer, be connected with described current monitoring circuit, and for according to the size of described current signal and predetermined threshold value, determine whether described isolating switch exists fault;
Wherein, described control loop comprises close a floodgate shunt and separating brake shunt, and described current signal comprises switching signal and sub-gate signal, wherein, described current monitoring circuit comprises: the first current monitoring circuit, is connected with described combined floodgate, along separate routes for obtaining described switching signal; The second current monitoring circuit, is connected with described separating brake, along separate routes for obtaining described sub-gate signal.
2. circuit according to claim 1, is characterized in that, described the first current monitoring circuit comprises the first shunt, and described combined floodgate comprises along separate routes:
First controls handgrip, and first end is connected with power supply, and the second end is connected with the first end of described the first shunt;
The first end of the first auxiliary switch of described isolating switch is connected with the second end of described the first shunt;
Closing coil, its first end is connected with the second end of described the first auxiliary switch, and the second end is connected with described power supply.
3. circuit according to claim 2, is characterized in that, described the first current monitoring circuit comprises the second shunt, and described combined floodgate also comprises along separate routes:
Combined floodgate pilot lamp, first end is connected with the first end of described the second shunt, and the second end is connected with described power supply;
The second end of described the second shunt is connected with the first end of described the first auxiliary switch.
4. circuit according to claim 1, is characterized in that, described the second current monitoring circuit comprises the 3rd shunt, and described separating brake comprises along separate routes:
Second controls handgrip, and first end is connected with power supply, and the second end is connected with the first end of described the 3rd shunt;
The first end of the second auxiliary switch of described isolating switch is connected with the second end of described the 3rd shunt;
Switching winding, its first end is connected with the second end of described the second auxiliary switch, and the second end is connected with described power supply.
5. circuit according to claim 4, is characterized in that, described the second current monitoring circuit comprises the 4th shunt, and described separating brake also comprises along separate routes:
Separating brake pilot lamp, first end is connected with the first end of described the 4th shunt, and the second end is connected with described power supply;
The second end of described the 4th shunt is connected with the first end of described the second auxiliary switch.
6. circuit according to claim 1, is characterized in that, the first end of described control loop is connected with power supply by the first fuse, and the second end of described control loop is connected with described power supply by the second fuse.
7. a monitoring system, is characterized in that, comprises a kind of observation circuit described in any one in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733890.8U CN203786263U (en) | 2013-11-19 | 2013-11-19 | Circuit and system for monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733890.8U CN203786263U (en) | 2013-11-19 | 2013-11-19 | Circuit and system for monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203786263U true CN203786263U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320733890.8U Expired - Fee Related CN203786263U (en) | 2013-11-19 | 2013-11-19 | Circuit and system for monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203786263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656011A (en) * | 2013-11-19 | 2015-05-27 | 国家电网公司 | Circuit and system for monitoring |
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2013
- 2013-11-19 CN CN201320733890.8U patent/CN203786263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656011A (en) * | 2013-11-19 | 2015-05-27 | 国家电网公司 | Circuit and system for monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20181119 |