CN207868705U - A kind of drawer type control device and switch cabinet system - Google Patents
A kind of drawer type control device and switch cabinet system Download PDFInfo
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- CN207868705U CN207868705U CN201721256402.3U CN201721256402U CN207868705U CN 207868705 U CN207868705 U CN 207868705U CN 201721256402 U CN201721256402 U CN 201721256402U CN 207868705 U CN207868705 U CN 207868705U
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- control device
- drawer type
- relay
- type control
- switch
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Abstract
The utility model is related to transmission ＆ distribution electro-technical fields, disclose a kind of drawer type control device and switch cabinet system, drawer type control device is flexibly connected with the first relay and dc switch respectively by connector, and drawer type control device is closed and is connected and is electrically connected with the first relay and dc switch；Drawer type control device is extracted out and is disconnected and is electrically connected with the first relay and dc switch.Drawer type control device includes sampling module, controller, controlled switch and microswitch.Drawer type control device is closed, the electric current of sampling module acquisition three-phase major loop concurrently send current signal to controller, controller, which detects, exports trip signal to controlled switch when current signal is abnormal, controlled switch disconnects, the coil losing electricity of the first relay, the normally-closed contact of first relay is closed, microswitch is connected, and the conducting of low pressure alarming circuit is alarmed, can be in circuit abnormal alarm, and false alarm will not occur, ensure that the stability of power supply.
Description
Technical field
The utility model is related to transmission ＆ distribution electro-technical field more particularly to a kind of drawer type control devices and switch cabinet system.
Background technology
Generally closure is made using steel plate in drawer type control device, suitable for requiring the higher nuclear power of power supply reliability
It stands or conventional power plant etc., can be used as central controlled distribution center.The electric elements for passing in and out line loop are all mounted on and can extract out
Drawer in, drawer is in normal operation position, i.e., when not extracting out, by the normally closed electric shock of relay, can realize electricity
Stream, overload lose the case where DC power supply is alarmed.But after drawer pulls out, even if there is not overcurrent, overload
Or the case where losing DC power supply alarm, also will appear alarm signal and is sent to master control since the normally closed electric shock of relay is connected
False alarm can occur for situation, i.e. distribution system, and switch is caused to malfunction, and then influence the stability of power supply.
Utility model content
The utility model embodiment provides a kind of drawer type control device and switch cabinet system, it is intended to solve the prior art
In drawer type control device extraction after, false alarm can occur for distribution system, cause switch malfunction, and then influence powered stable
The problem of property.
The first aspect of the utility model embodiment provides a kind of drawer type control device, and drawer type control device passes through
Connector is flexibly connected with the first relay and dc switch respectively, and drawer type control device is closed and is connected and the first relay
With the electrical connection of dc switch；Drawer type control device is extracted out and is disconnected and is electrically connected with the first relay and dc switch.
Drawer type control device includes sampling module, controller, controlled switch and microswitch.
Sampling module is accessed by connector in three-phase major loop, and the output end of sampling module and the input terminal of controller connect
Connect, the control terminal of the output end of controller and controlled switch connects, controlled switch by connector and dc switch and first after
The coil of electric appliance is connected on the positive and negative both ends of DC power supply busbar, and microswitch is touched by connector and the normally closed of the first relay
Point is connected in low pressure alarming circuit.
Drawer type control device is closed, and the electric current of sampling module acquisition three-phase major loop concurrently send current signal to control
Device, controller, which detects, exports trip signal to controlled switch when current signal is abnormal, controlled switch disconnects, the first relay
The normally-closed contact of the coil losing electricity of device, the first relay is closed, and microswitch is connected, and the conducting of low pressure alarming circuit is alarmed.
In one embodiment, drawer type control device further includes the three-phase break for controlling the folding of three-phase major loop
Device, three-phase breaker are accessed by connector in three-phase major loop.
In one embodiment, drawer type control device further includes the auxiliary contact and three-phase breaker of three-phase breaker
Breaking coil.
The first end that the first end of the auxiliary contact of three-phase breaker passes through connector and the normally opened contact of the second relay
The second end of connection, the auxiliary contact of three-phase breaker is connected by the first end of connector and the breaking coil of three-phase breaker
It connects, the first end of the control switch in low pressure alarming circuit is connect with the first end of the coil of the second relay, the second relay
Normally opened contact second end and the second end of control switch be connected to a non-moving end of dc switch, the jump of three-phase breaker altogether
The second end of brake cable circle and the second end of the coil of the second relay are connected to another non-moving end of dc switch altogether.
Three-phase breaker is closed in normal operation, and the auxiliary contact of three-phase breaker are also closed.
Drawer type control device is closed, if three-phase major loop is abnormal, low pressure alarming circuit conducting, control switch closes
Close, the coil of the second relay obtains electric, and the normally opened contact of the second relay is closed, the breaking coil of three-phase breaker obtain it is electric, three
Phase circuit breaker trip, and then disconnect three-phase major loop.
In one embodiment, sampling module includes threephase current transformer.
In one embodiment, the model Micrologic 2.0 of controller.
In one embodiment, the line voltage of three-phase major loop is 380V, frequency 50Hz.
In one embodiment, the positive terminal potential of DC power supply busbar is+125V, and negative terminal current potential is -125V.
The second aspect of the utility model embodiment provides a kind of switch cabinet system, including drawer type control as described above
Device processed further includes the first relay, the second relay and dc switch.
In one embodiment, switch cabinet system further includes police instruction module, police instruction module and the first relay
The second normally-closed contact the positive and negative both ends of DC power supply busbar are connected on by dc switch.
In one embodiment, police instruction module includes concatenated indicator light and alarm.
Existing advantageous effect is the utility model embodiment compared with prior art：Drawer type control device is by patching
Part is flexibly connected with the first relay and dc switch respectively, and drawer type control device is closed and is connected and the first relay and straight
Flow the electrical connection of switch；Drawer type control device is extracted out and is disconnected and is electrically connected with the first relay and dc switch.Drawer type
Control device includes sampling module, controller, controlled switch and microswitch.Drawer type control device is closed, and sampling module is adopted
The electric current of collection three-phase major loop concurrently send current signal to controller, and controller is detected to export when current signal is abnormal and be jumped
Lock signal to controlled switch, controlled switch disconnects, and the normally-closed contact of the coil losing electricity of the first relay, the first relay is closed,
Microswitch is connected, and the conducting of low pressure alarming circuit is alarmed.The utility model embodiment can be in circuit abnormal Times
It is alert, and false alarm will not occur, it ensure that the stability of power supply.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without having to pay creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the modular structure of drawer type control device and switch cabinet system that one embodiment of the utility model provides
Schematic diagram；
Fig. 2 is the circuit structure of drawer type control device and switch cabinet system that one embodiment of the utility model provides
Schematic diagram.
Specific implementation mode
In order to make those skilled in the art more fully understand this programme scheme, below in conjunction in this programme embodiment
The technical solution in this programme embodiment is explicitly described in attached drawing, it is clear that described embodiment is this programme one
The embodiment divided, instead of all the embodiments.Based on the embodiment in this programme, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, should all belong to the range of this programme protection.
Term " comprising " in the specification and claims of this programme and above-mentioned attached drawing and their any deformations, meaning
Figure, which is to cover, non-exclusive includes.In addition, term " first " and " second " etc. are for distinguishing different objects, not for retouching
State particular order.
The realization of the utility model is described in detail below in conjunction with specific attached drawing：
Fig. 1 shows a kind of module signal knot for drawer type control device 100 that one embodiment of the utility model is provided
Structure, Fig. 2 shows a kind of circuit connection structures for drawer type control device 100 that one embodiment of the utility model is provided, and are
Convenient for explanation, illustrate only with the utility model embodiment relevant part, details are as follows：
As depicted in figs. 1 and 2, drawer type control device 100 by connector 1 respectively with the first relay KM1 and direct current
Switch QS1 flexible connection, drawer type control device 100 are closed and are connected and be electrically connected with the first relay KM1 and dc switch QS1
It connects；Drawer type control device 100 is extracted out and is disconnected and is electrically connected with the first relay KM1 and dc switch QS1.
Drawer type control device 100 includes sampling module 110, controller U1, controlled switch QS2 and microswitch QS3.
Sampling module 110 is accessed by connector 1 in three-phase major loop 200, the output end and controller of sampling module 110
The input terminal of U1 connects, and the output end of controller U1 is connect with the control terminal of controlled switch QS2, and controlled switch QS2 is by patching
The coil of part 1 and dc switch QS1 and the first relay KM1 is connected on the positive and negative both ends of DC power supply busbar 300, microswitch
QS3 is connected on by the normally-closed contact of connector 1 and the first relay KM1 in low pressure alarming circuit 400.
Drawer type control device 100 is closed, and sampling module 110 acquires the concurrent power transmission stream letter of electric current of three-phase major loop 200
Number to controller U1, controller U1 detect when current signal is abnormal export trip signal to controlled switch QS2, it is controlled to open
It closes QS2 to disconnect, the coil losing electricity of the first relay KM1, the normally-closed contact of the first relay KM1 is closed, and microswitch QS3 connects
Logical, the conducting of low pressure alarming circuit 400 is alarmed.
In the present embodiment, drawer type control device 100 is opened with the first relay KM1 and direct current respectively by connector 1
QS1 flexible connections are closed, connector 1 can be achieved at the same time mechanical connection and electrical connection, when drawer type control device 100 is extracted out,
Connector 1 disconnects；When drawer type control device 100 is closed, connector 1 is closed.
In the present embodiment, the characteristic of microswitch QS3 is：When drawer type control device 100 is closed, microswitch QS3
It connects；When drawer type control device 100 is extracted out, microswitch QS3 is disconnected.
In one embodiment, when drawer type control device 100 is closed, drawer type control device 100 is in normal work
Make position or testing position.When drawer type control device 100 is closed, conducting is with the first relay KM1's and dc switch QS
Electrical connection.Also, microswitch QS3 is connected.
In one embodiment, when drawer type control device 100 is extracted out, drawer type control device 100 is in isolated bit
It sets.When drawer type control device 100 is extracted out, disconnection is electrically connected with the first relay KM1's and dc switch QS.Also, fine motion
Switch QS3 is disconnected.Low pressure alarming circuit 400 disconnects, and false alarm will not occur.
In one embodiment, as shown in Fig. 2, controlled switch QS2 by connector 1 and dc switch QS1 and first after
The coil of electric appliance KM1 is connected on the positive and negative both ends of DC power supply busbar 300, and specific connection type is：Controlled switch QS2's is normally closed
End is connect by connector 1 with the 4th end of dc switch QS1, the non-moving end of controlled switch QS2 by connector 1 and first after
The first end of the coil of electric appliance KM1 connects, and the second end of the coil of the first relay KM1 connects with the second end of dc switch QS1
It connects, the third termination DC power supply of the negative terminal of the first termination DC power supply busbar 300 of dc switch QS1, dc switch QS1 is female
The anode of line 300.
Dc switch QS1 is double-pole single throw, and two normally open ends are respectively first end and third end, two non-moving ends point
Other second end and the 4th end.
In one embodiment, as shown in Fig. 2, microswitch QS3 passes through the normally closed of connector 1 and the first relay KM1
In low pressure alarming circuit 400, specific connection type is contact series：The normal-closed end of microswitch QS3 connects by plug connector 1
The first end of the normally-closed contact of one relay KM1, the second end access low pressure alarming circuit of the normally-closed contact of the first relay KM1
The busbar in low pressure alarming circuit 400 is being accessed just in the non-moving end of busbar negative terminal in 400, microswitch QS3 by plug connector 1
End.
In the present embodiment, the case where current signal is abnormal includes big ups and downs or is more than threshold value etc..
In one embodiment, when short circuit or overload occurs in three-phase major loop 200, sampling module 110 is collected
The electric current of three-phase major loop 200 is abnormal, and the current signal for being sent to controller U1 is caused also to be abnormal, so that low
Pressure alarm circuit 400 is alarmed.
In one embodiment, when DC power supply 300 dead electricity of busbar, the coil losing electricity of the first relay KM1, first after
The normally-closed contact of electric appliance KM1 is closed, and the conducting of low pressure alarming circuit 400 is alarmed.
The utility model embodiment may be implemented when short circuit or overload occurs in three-phase major loop 200, and in direct current
It when 300 dead electricity of power source bus, can alarm, and false alarm will not occur.
As shown in Fig. 2, in one embodiment of the utility model, drawer type control device 100 further includes for controlling
The three-phase breaker KR that three-phase major loop 200 opens and closes, three-phase breaker KR are accessed by connector 1 in three-phase major loop 200.
In the present embodiment, after three-phase breaker KR closes a floodgate, three-phase major loop 200 is connected, after three-phase breaker KR trippings, three
Phase major loop 200 disconnects.Error protection may be implemented in three-phase breaker KR.
As shown in Fig. 2, in one embodiment of the utility model, drawer type control device 100 further includes three-phase break
The breaking coil of the auxiliary contact and three-phase breaker KR of device KR.
The first end of the auxiliary contact of three-phase breaker KR passes through the normally opened contact of connector 1 and the second relay KM2
First end connects, the breaking coil that the second ends of the auxiliary contact of three-phase breaker KR passes through connector 1 and three-phase breaker KR
First end connection, the of the first end of the control switch QS4 in low pressure alarming circuit 400 and the coil of the second relay KM2
One end connects, and the second end and the second end of control switch QS4 of the normally opened contact of the second relay KM2 are connected to dc switch altogether
A non-moving end of QS1, the second end of the breaking coil of three-phase breaker KR and the second end of the coil of the second relay KM2 are total
It is connected to another non-moving end of dc switch QS1.
Three-phase breaker KR is closed in normal operation, and the auxiliary contact of three-phase breaker KR are also closed.
Drawer type control device 100 is closed, if three-phase major loop 200 is abnormal, low pressure alarming circuit 400 is connected, control
It makes switch QS4 to be closed, the coil of the second relay KM2 obtains electric, the normally opened contact closure of the second relay KM2, three-phase breaker
The breaking coil of KR obtains electric, three-phase breaker KR combined floodgates, and then disconnects three-phase major loop 200, meanwhile, three-phase breaker KR's is auxiliary
Contact is helped also to disconnect.
The present embodiment is realized in line failure, while low pressure alarming circuit 400 is alarmed, disconnects three-phase major loop
200, to which faulty line be cut off.
As shown in Fig. 2, in one embodiment of the utility model, sampling module 110 includes threephase current transformer.
As shown in Fig. 2, in one embodiment of the utility model, the model Micrologic2.0 of controller U1.
In one embodiment of the utility model, the line voltage of three-phase major loop 200 is 380V, frequency 50Hz.
In one embodiment of the utility model, the positive terminal potential of DC power supply busbar 300 is+125V, negative terminal current potential
For -125V.
The utility model embodiment additionally provides a kind of switch cabinet system, including drawer type control device as described above
100, further include the first relay KM1, the second relay KM2 and dc switch QS1.
As shown in Fig. 2, in one embodiment of the utility model, switch cabinet system further includes police instruction module, report
The second normally-closed contact of alert indicating module and the first relay KM1 are connected on DC power supply busbar 300 by dc switch QS1
Positive and negative both ends.
In one embodiment, police instruction module includes indicator light and alarm.
When an exception occurs, the coil losing electricity of the first relay KM1, the second normally-closed contact conducting of the first relay KM1,
Indicator light is bright, and alarm makes a sound alarm.
The present embodiment realizes fault cues by the light on and off and alarm sounding of indicator light.
The above, above example are only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, it will be understood by those of ordinary skill in the art that：It is still
Can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced
It changes；And these modifications or replacements, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (10)
1. a kind of drawer type control device, which is characterized in that the drawer type control device by connector respectively with first after
Electric appliance and dc switch flexible connection, the drawer type control device are closed and are connected and first relay and the direct current
The electrical connection of switch；The drawer type control device is extracted out and is disconnected and is electrically connected with first relay and the dc switch
It connects；
The drawer type control device includes sampling module, controller, controlled switch and microswitch；
The sampling module is accessed by the connector in three-phase major loop, the output end of the sampling module and the control
The input terminal of device connects, and the output end of the controller is connect with the control terminal of the controlled switch, and the controlled switch passes through
The coil of the connector and the dc switch and first relay is connected on the positive and negative both ends of DC power supply busbar, institute
Microswitch is stated to be connected in low pressure alarming circuit by the normally-closed contact of the connector and first relay；
The drawer type control device is closed, and the electric current that the sampling module acquires the three-phase major loop concurrently send current signal
To the controller, the controller detects that trip signal is exported when the current signal is abnormal controlled to be opened to described
It closes, the controlled switch disconnects, the coil losing electricity of first relay, and the normally-closed contact of first relay is closed, institute
Microswitch connection is stated, the low pressure alarming circuit conducting is alarmed.
2. drawer type control device as described in claim 1, which is characterized in that the drawer type control device further includes being used for
The three-phase breaker of the three-phase major loop folding is controlled, the three-phase breaker accesses the three-phase master by the connector
In circuit.
3. drawer type control device as claimed in claim 2, which is characterized in that the drawer type control device further includes described
The breaking coil of the auxiliary contact of three-phase breaker and the three-phase breaker；
The first end of the auxiliary contact of the three-phase breaker pass through the normally opened contact of the connector and the second relay
One end connects, the tripping that the second ends of the auxiliary contact of the three-phase breaker passes through the connector and the three-phase breaker
The first end of coil connects, the first end and the coil of second relay of the control switch in the low pressure alarming circuit
First end connects, and the second end of the normally opened contact of second relay is connected to described straight altogether with the second end that the control switchs
Flow a non-moving end of switch, the of the coil of the second end of the breaking coil of the three-phase breaker and second relay
Two ends are connected to another non-moving end of the dc switch altogether；
The three-phase breaker is closed in normal operation, and the auxiliary contact of the three-phase breaker are also closed；
The drawer type control device is closed, if the three-phase major loop is abnormal, the low pressure alarming circuit conducting is described
Control switch is closed, and the coil of second relay obtains electric, the normally opened contact closure of second relay, and the three-phase is disconnected
The breaking coil of road device obtains electric, the three-phase breaker tripping, and then disconnects the three-phase major loop.
4. drawer type control device as described in claim 1, which is characterized in that the sampling module includes three-phase current mutual inductance
Device.
5. drawer type control device as described in claim 1, which is characterized in that the model Micrologic of the controller
2.0。
6. drawer type control device as described in claim 1, which is characterized in that the line voltage of the three-phase major loop is
380V, frequency 50Hz.
7. drawer type control device as described in claim 1, which is characterized in that the positive terminal potential of the DC power supply busbar is
+ 125V, negative terminal current potential are -125V.
8. a kind of switch cabinet system, which is characterized in that including drawer type control device as described in any one of claim 1 to 7,
Further include first relay and the dc switch.
9. switch cabinet system as claimed in claim 8, which is characterized in that the switch cabinet system further includes police instruction mould
Second normally-closed contact of block, the police instruction module and first relay is connected on described straight by the dc switch
Flow the positive and negative both ends of power source bus.
10. switch cabinet system as claimed in claim 9, which is characterized in that the police instruction module includes concatenated instruction
Lamp and alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721256402.3U CN207868705U (en) | 2017-09-27 | 2017-09-27 | A kind of drawer type control device and switch cabinet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721256402.3U CN207868705U (en) | 2017-09-27 | 2017-09-27 | A kind of drawer type control device and switch cabinet system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207868705U true CN207868705U (en) | 2018-09-14 |
Family
ID=63475083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721256402.3U Active CN207868705U (en) | 2017-09-27 | 2017-09-27 | A kind of drawer type control device and switch cabinet system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207868705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491295A (en) * | 2018-12-05 | 2019-03-19 | 岭澳核电有限公司 | Control system |
| CN115148008A (en) * | 2022-06-30 | 2022-10-04 | 广东电网有限责任公司 | State monitoring and alarming device for direct current power supply loop |
-
2017
- 2017-09-27 CN CN201721256402.3U patent/CN207868705U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491295A (en) * | 2018-12-05 | 2019-03-19 | 岭澳核电有限公司 | Control system |
| CN109491295B (en) * | 2018-12-05 | 2020-06-16 | 岭澳核电有限公司 | Control system |
| CN115148008A (en) * | 2022-06-30 | 2022-10-04 | 广东电网有限责任公司 | State monitoring and alarming device for direct current power supply loop |
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