CN206673556U - A kind of primary cut-out secondary circuit monitoring system - Google Patents
A kind of primary cut-out secondary circuit monitoring system Download PDFInfo
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- CN206673556U CN206673556U CN201720333707.3U CN201720333707U CN206673556U CN 206673556 U CN206673556 U CN 206673556U CN 201720333707 U CN201720333707 U CN 201720333707U CN 206673556 U CN206673556 U CN 206673556U
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- Prior art keywords
- primary cut
- secondary circuit
- singlechip controller
- primary
- monitoring system
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Abstract
It the utility model is related to a kind of primary cut-out secondary circuit monitoring system, the system includes singlechip controller, monitoring modular, alarm display module and power module, the monitoring modular respectively with singlechip controller, the secondary circuit of primary cut-out connects with the primary circuit of primary cut-out, the singlechip controller respectively with alarm display module, the secondary circuit of primary cut-out connects with the primary circuit of primary cut-out, the power module is connected with singlechip controller and alarm display module respectively, the power module includes voltage stabilizing chip, control source protects electric capacity and voltage output protection electric capacity, the input of the voltage stabilizing chip and control source protection capacitance connection, the output end of the voltage stabilizing chip protects electric capacity with voltage output respectively, singlechip controller connects with alarm display module.Compared with prior art, the utility model has the advantages that continuously round-the-clock to monitor secondary circuit and intuitive display.
Description
Technical field
Field of power is the utility model is related to, more particularly, to a kind of primary cut-out secondary circuit monitoring system.
Background technology
When electric power system fault, according to relay protection relevant regulations, power switchgear will be accomplished in time, accurately arrange
Except faulty component.In addition to protective relaying device valuation can be acted accurately and reliably, whether executive component-breaker of instruction
Can action message be also a key factor, and excision the vital ring of faulty circuit.If faulty generation, after
Electrical protective device starts in time, but primary cut-out does not perform action command but, and failure cannot be removed in time, inherently
Trigger the consequences such as fault coverage expansion, service life of equipment are shortened, economic loss increases.So once there is event in power system
Barrier, even if breaker possesses emergency trip device, the situation for being also definitely not allow for breaker miss operation occurs.Breaker control
Loop action message processed is self-evident for the importance of system stable operation.
In the project of reality, four classes are essentially divided into for breaker control circuit detection：
1. in a closing loop secondary circuit in parallel, series resistor and tripping operation and "on" position relay, pass through
The normally closed switch of two relays starts to detect；
2. in a closing loop secondary circuit in parallel, series resistor and LED detections；
3. a relay test with high internal resistance is concatenated in closing loop；
4. a LED detection is concatenated in closing loop.
In four kinds of detection methods more than, the detection reason of first two is identical, and breaker is after combined floodgate to tripping back
Road whether can trip has started whole process detection, but closing circuit next time whether can safety closing do not know.Together
Sample understands breaker closes a floodgate the detection of whole process whether can be carried out to closing circuit after tripping, but trip(ping) circuit is next time
Whether can trip safely unclear；
The third method, it can complete to start trip(ping) circuit detection whole under breaker tripping and closing situation, but breaker tripping and closing are returned
Whole process of the road after tripping operation and combined floodgate can not start to detect；4th kind of method, only for trip(ping) circuit after combined floodgate
Whether can trip and start whole detection, after tripping operation trip(ping) circuit whether can successfully trip next time unclear.Cause
This above-mentioned four kinds of method round-the-clock can not be monitored continuously to secondary circuit.
Utility model content
The purpose of this utility model is to provide a kind of primary cut-out secondary circuit monitoring system regarding to the issue above.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of primary cut-out secondary circuit monitoring system, the system include singlechip controller, monitoring modular, alarm
Display module and power module, the monitoring modular respectively with singlechip controller, the secondary circuit of primary cut-out and high pressure
Breaker primary circuit connection, the singlechip controller respectively with alarm display module, the secondary circuit of primary cut-out
Being connected with the primary circuit of primary cut-out, the power module is connected with singlechip controller and alarm display module respectively,
The power module include voltage stabilizing chip, control source protection electric capacity and voltage output protection electric capacity, the voltage stabilizing chip it is defeated
Enter end and control source protection capacitance connection, the output end of the voltage stabilizing chip protects electric capacity, single-chip microcomputer with voltage output respectively
Controller connects with alarm display module.
The singlechip controller includes K60 singlechip controllers.
The monitoring modular includes HCS-LTS3 Hall sensors.
The alarm display module includes sound and light alarm component and liquid crystal display display screen, the sound and light alarm component and liquid crystal
Panel type display is respectively connected with singlechip controller and power module.
The sound and light alarm component includes buzzer, blue led display lamp and red LED display lamp.
Compared with prior art, the utility model has the advantages that：
(1), can be to the internal current of breaker by introducing singlechip controller, monitoring modular and alarm display module
It is monitored, can be taken measures when there is the problem of certain with alarm and reminding staff, and for staff
The data for checking and a part being provided, such as trip time, the current value of breaker coil, etc. are carried out, so as to which thing will not be caused
Therefore expand.Greatly improve electric power system control loop reliability of operation and stability.
(2) singlechip controller and monitoring modular are also connected with primary circuit, and this connected mode causes in high pressure open circuit
When device occurs trip operation but breaker and do not have action response, primary circuit can be intervened by singlechip controller and broken
Road, prevent because breaker does not have fault spread caused by acting, can also be to height when staff does not timely respond to
Voltage breaker control system plays a part of protection.
(3) power module is connected with singlechip controller and alarm display module respectively, is powered simultaneously for the two, and power supply
Module is provided with voltage stabilizing chip, control source protection electric capacity and voltage output protection electric capacity, the stability of power supply is ensure that, so as to protect
The stable operation of singlechip controller and alarm display module has been demonstrate,proved, then ensure that the continuation of monitoring.
(4) monitoring modular uses HCS-LTS3 Hall sensors, with being monitored phase by I-shaped inductive amplifying return circuit
Than monitoring error is small, precision is high and accuracy is stronger, ensure that the monitoring accuracy of monitoring system.
(5) when secondary circuit breaks down, remind staff to find in time by sound and light alarm component and handle event
Barrier, and specific fault type is shown by LCDs, it is easy to staff to be overhauled and handled, timely performance is strong.
(6) sound and light alarm component is provided with buzzer, blue led display lamp and red LED display lamp, is distinguished and worked as by color
The state of preceding secondary circuit, and high intensity prompting is carried out by buzzer, remind in time, be easy to staff to find.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the circuit diagram of power module；
Fig. 3 is the practical circuit diagram of primary cut-out secondary circuit monitoring system；
Wherein, 1 is primary circuit, and 2 be secondary circuit, and 3 be power module, and 4 be singlechip controller, and 5 be monitoring mould
Block, 6 be sound and light alarm component, and 7 be LCDs.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, give detailed embodiment and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
As shown in figure 1, a kind of primary cut-out secondary circuit monitoring system is present embodiments provided, including single-chip microcomputer control
Device, monitoring modular, alarm display module and power module, monitoring modular respectively with singlechip controller, primary cut-out two
Minor loop connects with the primary circuit of primary cut-out, singlechip controller respectively with alarm display module, primary cut-out
Secondary circuit connects with the primary circuit of primary cut-out, and power module connects with singlechip controller and alarm display module respectively
Connect, power module include voltage stabilizing chip, control source protection electric capacity and voltage output protection electric capacity, the input of voltage stabilizing chip with
Control source protects capacitance connection, and the output end of the voltage stabilizing chip protects electric capacity, singlechip controller with voltage output respectively
Connected with alarm display module.Singlechip controller includes K60 singlechip controllers.Monitoring modular passes including HCS-LTS3 Halls
Sensor.Alarm display module includes sound and light alarm component and liquid crystal display display screen, and the sound and light alarm component and liquid crystal display are shown
Device is respectively connected with singlechip controller and power module.Sound and light alarm component includes buzzer, blue led display lamp and red
Color LED display lamps.
Designed according to said system, specific hardware configuration is as follows：
As shown in Fig. 2 single-chip microcomputer is powered using 3.3V, LED, display screen and button are powered using 3.3V, this implementation
Voltage stabilizing chip is done using LP38690-3.3 in example, is well positioned to meet requirement：
Hall sensor signal acquisition, using HCS-LTS3 array of ring closure Hall current sensors.Sensor is base
In a Hall current sensor of closed loop magnetic balance principle, DC-AC, pulse and various irregular electricity can be measured
Flow signal etc..The sensor possesses high accuracy, the good linearity, low-power consumption, very strong current overload ability and small-sized
It can adapt to PCB installation.
In the design of display panel module, in order that equipment can intuitively show key parameter in the course of the work, this
TFT LCDs has been placed on system board by embodiment.Line work state, including disconnected combined floodgate are shown, current status, is
No success.It is this to design the debugging efficiency for substantially increasing equipment.
Program operation needs to configure modules register quality in single-chip microcomputer so that single-chip microcomputer modules can be according to
Our instruction normal work.The clock configuration, GPIO configurations, AD that initialization includes single-chip microcomputer are configured, PIT is configured etc..Tool
The system resource allocation of body is as shown in table 1：
The System on Chip/SoC resource service condition table of table 1
The design of mainboard, the design of mainboard need to be related to primary circuit, the simulation of secondary circuit, and single-chip microcomputer portion
Point.Require to refer to need the break-make with single-chip microcomputer come control loop when design, when simulation, using S9014
Triode does a switching circuitry, by the low and high level of single-chip microcomputer controlling switch come the break-make of control loop.Once returning
The SB1 of an actual killer switch of simulation is accessed in road, but this switch is by possible in various breakers for simulating
It is in the presence of, including closes a floodgate or trip, failure of closing a floodgate, tripping operation failure.LED is accessed to be used to intuitively embody in primary circuit
Conduction state.Access the current status that resistance is used in control loop.S9014 triodes are accessed to control the logical of primary circuit
It is disconnected, when b ends award high voltage, ce ends can be caused to turn on, otherwise ce ends conduction can be disconnected.E terminates the positive pole into Hall sensor
Incoming end, negative pole ground connection.LED is accessed in secondary circuit to be used to intuitively embody the conduction state in primary circuit.Concatenation is slided
Dynamic rheostat RP, for changing the current value size of access Hall sensor, to simulate the various current situations of appearance.Access
The current status that resistance is used in control loop.S9014 triodes are accessed to control the break-make of primary circuit.When b ends award height
Voltage, ce ends can be caused to turn on, otherwise ce ends conduction can be disconnected.E terminates the positive pole incoming end into Hall sensor, and negative pole connects
Ground.
One-chip computer module is mainly the collections of data, processing, analysis, the work performed, when collection, single-chip microcomputer
B0, A17 pin obtain the analog quantity that the Hall sensor of secondary circuit and primary circuit transmits respectively, the electric current in corresponding line
Value.Two LED are controlled respectively to show the working condition of breaker by single-chip microcomputer, blinking red lamp is caused in work, if success,
Blue lamp is bright, have failed when red, and buzzer can be piped when failure.C10, C11 pin control secondary returning respectively
Road and the break-make situation of primary circuit.As shown in Figure 3：
Control process of the monitoring system in the course of work is as follows：
Correspond to the process control in closing circuit when active control, corresponding overcurrent, standby current, defluidization,
Corresponding three kinds of situations.
Situation one：In the situation of overcurrent.Single-chip microcomputer detects that the information of overcurrent corresponds to buzzer warning, prompts work
Personnel notice that timer T0 starts working, and timing, carry out one-time detection every 1 millisecond, judge whether major loop closes a floodgate into
Work(, in making process, the relay indicating light flicker of breaker.If successful, corresponding display screen show " Over current ",
" Closing success ", and the number of seconds of corresponding action is shown, while light blue lamp and represent that successfully, buzzer persistently rings.If
The fixed time is to act for 5 seconds.If akinesia in 5 seconds, corresponding display screen shows " Over current ", " Closing
Failure ", while red light is lasting bright, buzzer persistently rings.
Situation two：In the situation of standby current.Timer T0 starts working, and timing, is once examined every 1 millisecond
Survey, judge major loop whether closing success, in making process, the relay indicating light flicker of breaker.It is corresponding aobvious if successful
Display screen shows that " Monitor curren ", " Closing success ", and the number of seconds of action corresponding to showing, while light indigo plant
Lamp represents successfully.The time of setting is to act for 5 seconds.If akinesia in 5 seconds, corresponding display screen shows " Monitor
Curren ", " Closing failure ", while red light is lasting bright, buzzer persistently rings.
Situation three：In the situation of defluidization.Single-chip microcomputer detects that the information of overcurrent corresponds to buzzer warning, prompts work people
Member notices that timer T0 starts working, and timing, and one-time detection is carried out every 1 millisecond, judge major loop whether closing success,
In making process, the relay indicating light flicker of breaker.If successful, corresponding display screen show " Losing current ",
" Closing success ", and the number of seconds of corresponding action is shown, while light blue lamp and represent that successfully, buzzer persistently rings.If
The fixed time is to act for 5 seconds.If akinesia in 5 seconds, corresponding display screen shows " Losing current ", " Closing
Failure ", while red light is lasting bright, buzzer persistently rings.
Correspond to the process control in trip(ping) circuit when active control, corresponding overcurrent, standby current, defluidization,
Corresponding three kinds of situations.
Situation one：In the situation of overcurrent.Single-chip microcomputer detects that the information of overcurrent corresponds to buzzer warning, prompts work
Personnel notice that timer T0 starts working, and timing, and one-time detection is carried out every 1 millisecond, judge whether main tripping operation trips into
Work(, during tripping operation, the relay indicating light flicker of breaker.If successful, corresponding display screen show " Over current ",
" Tripping success ", and the number of seconds of corresponding action is shown, while light blue lamp and represent that successfully, buzzer persistently rings.
The time of setting is to act for 5 seconds.If akinesia in 5 seconds, corresponding display screen shows " Over current ", " Tripping
Failure ", while red light is lasting bright, buzzer persistently rings.
Situation two：In the situation of standby current.Timer T0 starts working, and timing, is once examined every 1 millisecond
Survey, judge main success of whether tripping of tripping, during tripping operation, the relay indicating light flicker of breaker.It is corresponding aobvious if successful
Display screen shows that " Monitor curren ", " Tripping success ", and the number of seconds of action corresponding to showing, while light indigo plant
Lamp represents successfully.The time of setting is to act for 5 seconds.If akinesia in 5 seconds, corresponding display screen shows " Monitor
Curren ", " Tripping failure ", while red light is lasting bright, buzzer persistently rings.
Situation three：In the situation of defluidization.Single-chip microcomputer detects that the information of overcurrent corresponds to buzzer warning, prompts work people
Member notices that timer T0 starts working, and timing, and one-time detection is carried out every 1 millisecond, judges whether major loop trips success,
During tripping operation, the relay indicating light flicker of breaker.If successful, corresponding display screen show " Losing current ",
" Tripping success ", and the number of seconds of corresponding action is shown, while light blue lamp and represent that successfully, buzzer persistently rings.
The time of setting is to act for 5 seconds.If akinesia in 5 seconds, corresponding display screen show " Losing current ",
" Tripping failure ", while red light is lasting bright, buzzer persistently rings.
Claims (5)
1. a kind of primary cut-out secondary circuit monitoring system, it is characterised in that the system includes singlechip controller, monitoring
Module, alarm display module and power module, the monitoring modular respectively with singlechip controller, the secondary returning of primary cut-out
Road connects with the primary circuit of primary cut-out, the singlechip controller respectively with alarm display module, primary cut-out
Secondary circuit connects with the primary circuit of primary cut-out, the power module respectively with singlechip controller and alarm indication mould
Block connects, and the power module includes voltage stabilizing chip, control source protection electric capacity and voltage output protection electric capacity, the voltage stabilizing core
The input of piece and control source protection capacitance connection, the output end of the voltage stabilizing chip respectively with voltage output protection electric capacity,
Singlechip controller connects with alarm display module.
2. primary cut-out secondary circuit monitoring system according to claim 1, it is characterised in that the single-chip microcomputer control
Device includes K60 singlechip controllers.
3. primary cut-out secondary circuit monitoring system according to claim 1, it is characterised in that the monitoring modular bag
Include HCS-LTS3 Hall sensors.
4. primary cut-out secondary circuit monitoring system according to claim 1, it is characterised in that the alarm indication mould
Block includes sound and light alarm component and liquid crystal display display screen, the sound and light alarm component and liquid crystal screen displays respectively with single-chip microcomputer
Controller connects with power module.
5. primary cut-out secondary circuit monitoring system according to claim 4, it is characterised in that the sound and light alarm group
Part includes buzzer, blue led display lamp and red LED display lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333707.3U CN206673556U (en) | 2017-03-31 | 2017-03-31 | A kind of primary cut-out secondary circuit monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333707.3U CN206673556U (en) | 2017-03-31 | 2017-03-31 | A kind of primary cut-out secondary circuit monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206673556U true CN206673556U (en) | 2017-11-24 |
Family
ID=60366611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720333707.3U Expired - Fee Related CN206673556U (en) | 2017-03-31 | 2017-03-31 | A kind of primary cut-out secondary circuit monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206673556U (en) |
-
2017
- 2017-03-31 CN CN201720333707.3U patent/CN206673556U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171124 Termination date: 20210331 |