CN204732848U - Voltage-time type intelligence the complete sets of equipment - Google Patents
Voltage-time type intelligence the complete sets of equipment Download PDFInfo
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- CN204732848U CN204732848U CN201520343397.4U CN201520343397U CN204732848U CN 204732848 U CN204732848 U CN 204732848U CN 201520343397 U CN201520343397 U CN 201520343397U CN 204732848 U CN204732848 U CN 204732848U
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Abstract
Voltage-time type intelligence the complete sets of equipment of the present utility model, it comprises with bus and the inlet wire branch road connect, the first outlet branch road, the second outlet branch road, the 3rd outlet branch road; Inlet wire branch road is identical with the first outlet branch structure, and the second outlet branch road is identical with the 3rd outlet branch structure; Inlet wire branch road comprises the first voltage transformer, on-load switch, back-up source, the first current transformer, the first voltage sensor, the second voltage transformer, voltage-time type intelligent switch controller; Second outlet branch road comprises tertiary voltage instrument transformer, circuit breaker, the second current transformer, the second voltage sensor, house dog controller; These the complete sets of equipment possess feeder automation function and fault detect, fault type differentiate and the automatism isolation function of fault.
Description
[technical field]
The utility model relates to electric power system power distribution automatic field, is specifically related to a kind of distribution voltage-time type intelligence the complete sets of equipment.
[background technology]
Ring main unit structure is simple, reliable and safety, and maintenance capacity is very little, and operating cost is low, in the power distribution station being widely used in the load centers such as Urban Residential District, skyscraper, large public building, factory and enterprise and box-type substation; Current domestic ring main unit function singleness, intelligence degree is not high, can not process zero sequence overvoltage fault, transformer station and basic routing line other-end can not be coordinated again to carry out Fault Isolation and circuit recovers automatically.
[summary of the invention]
In view of this, the utility model provides a kind of smart machine for distribution line, i.e. voltage-time type intelligence the complete sets of equipment.
The utility model adopts following technical scheme, structure voltage-time type intelligence the complete sets of equipment, and it comprises with bus and the inlet wire branch road connect, the first outlet branch road, the second outlet branch road, the 3rd outlet branch road; Inlet wire branch road is identical with the first outlet branch structure, and the second outlet branch road is identical with the 3rd outlet branch structure; Inlet wire branch road comprises the first voltage transformer, on-load switch, back-up source, the first current transformer, the first voltage sensor, the second voltage transformer, voltage-time type intelligent switch controller; On-load switch, current transformer and the first voltage sensor are connected on the backbone of inlet wire branch road successively; The control end of on-load switch connects voltage-time type intelligent switch controller; The backbone that one secondary input end of the first voltage transformer is attempted by inlet wire branch road is positioned at on-load switch front end, and its secondary output connects voltage-time type intelligent switch controller and back-up source; The backbone that one secondary input end of the second voltage transformer is attempted by inlet wire branch road is positioned at on-load switch rear end, and its secondary output connects voltage-time type intelligent switch controller and back-up source; First current transformer is connected voltage-time type intelligent switch controller with the secondary output of the first voltage sensor; Second outlet branch road comprises tertiary voltage instrument transformer, circuit breaker, the second current transformer, the second voltage sensor, house dog controller; Circuit breaker, the second current transformer and the second voltage sensor are connected on the backbone of the second outlet branch road successively, and the control end of circuit breaker connects house dog controller; The backbone that one secondary input end of tertiary voltage instrument transformer is attempted by the second outlet branch road is positioned at circuit breaker front end, and its secondary output connects house dog controller; Second current transformer is connected voltage-time type intelligent switch controller with the secondary output of the second voltage sensor;
Preferably, it also comprises the communication manager with bus parallel connection, and described voltage-time type intelligent switch controller is all connected with communication manager with the communication ends of house dog controller.
Preferably, it also comprises isolating switch, and described isolating switch is connected on the backbone of each branch road, is located between on-load switch and the first voltage transformer and/or is located between circuit breaker and tertiary voltage instrument transformer.
Preferably, described back-up source is super capacitor.
Advantageous Effects of the present utility model is:
These the complete sets of equipment possess feeder automation function and fault detect, fault type differentiate and the automatism isolation function of fault.When transient fault appears in circuit, after transient fault disappears, coordinate substation secondary reclosing, recover line powering; When there is permanent fault, coordinating substation secondary reclosing, confirming fault type, isolated fault is interval, recovers the power supply in non-faulting interval.Separately according to the pattern (segmentation/looped network) selected, perform corresponding voltage-time type logic function.
These the complete sets of equipment possess the arbitration functions of residual voltage overvoltage fault.When there is permanent fault in circuit, after coordinating transforming plant primary reclosing, when combined floodgate is interval to isolated fault, the utility model detects residual voltage overvoltage, after the time delay of setting, timely tripping operation, and locking close a floodgate, both avoided the tripping operation again of transformer station, again can accurately isolated fault interval, shorten interruption duration, recover the power supply in non-faulting interval.
[accompanying drawing explanation]
Voltage-time type intelligence the complete sets of equipment electrical structure schematic diagram in Fig. 1 embodiment one;
Voltage-time type intelligence the complete sets of equipment in Fig. 2 embodiment one and transformer station's connection diagram.
[embodiment]
In order to make the technical scheme of this patent and technique effect clearly, be described in detail below in conjunction with the embodiment of drawings and Examples to this patent.
Embodiment one:
As Fig. 1, the voltage-time type intelligence the complete sets of equipment in the present embodiment, comprise ring main unit universal component and back-up source, voltage-time type intelligent switch controller, house dog controller, communication manager.Ring main unit universal component comprises current transformer, voltage transformer, voltage sensor, potential indicator, fuse, lightning arrester, earthed switch, main switch (on-load switch/circuit breaker), isolating switch, cabinet etc.
Voltage-time type intelligence the complete sets of equipment comprise with bus and the inlet wire branch road 1 connect, outlet branch road 4, outlet branch road 2 and 3, communication manager.
The trunk roads of inlet wire branch road 1 are in series with isolating switch QF11 successively, on-load switch QL11, Current Transmit 11, voltage sensor PT13, in parallel with the trunk roads of inlet wire branch road 1 and be positioned at the fuse FU11 of isolating switch QF11 front end, the voltage transformer pt 11 that one secondary input end is connected with the other end of fuse FU11, and electric capacity C11 be successively positioned at on-load switch QL11 after in parallel with the trunk roads of inlet wire branch road 1, the series arm of electric capacity C12 and electrification display DXN11, earthed switch QE11, and lightning arrester F11 be positioned at voltage sensor PT12 after in parallel with the trunk roads of inlet wire branch road 1, the fuse FU12 that one secondary input end is in parallel with the trunk roads of inlet wire branch road 1, the voltage transformer pt 12 that one secondary input end is connected with the other end of fuse FU12, the secondary output of voltage transformer pt 11 is connected with two secondary input ends of voltage-time type intelligent switch controller 1 and back-up source 1, the control end of on-load switch QL11 is connected with voltage-time type on-off controller 1, the secondary output of Current Transmit 11, the secondary output of voltage sensor PT13, the secondary output of voltage transformer pt 12 is all connected with two secondary input ends of voltage-time type on-off controller 1, the secondary output of voltage transformer pt 12 is also connected with two secondary input ends of back power supply 1, being connected with communication manager by connection of voltage-time type on-off controller 1.
The trunk roads of outlet branch road 4 are in series with isolating switch QF41 successively, on-load switch QL41, Current Transmit 41, voltage sensor PT43, in parallel with the trunk roads of outlet branch road 4 and be positioned at the fuse FU41 of isolating switch QF41 front end, the voltage transformer pt 41 that one secondary input end is connected with the other end of fuse FU41, and electric capacity C41 be successively positioned at on-load switch QL41 after in parallel with the trunk roads of outlet branch road 4, the series arm of electric capacity C42 and electrification display DXN41, earthed switch QE41, and lightning arrester F41 be positioned at voltage sensor PT42 after in parallel with the trunk roads of outlet branch road 4, the fuse FU42 that one secondary input end is in parallel with the trunk roads of outlet branch road 4, the voltage transformer pt 42 that one secondary input end is connected with the other end of fuse FU42, the secondary output of voltage transformer pt 41 is connected with two secondary input ends of voltage-time type intelligent switch controller 2 and back-up source 2, the control end of on-load switch QL41 is connected with voltage-time type on-off controller 2, the secondary output of Current Transmit 41, the secondary output of voltage sensor PT43, the secondary output of voltage transformer pt 42 is all connected with two secondary input ends of voltage-time type on-off controller 2, the secondary output of voltage transformer pt 42 is also connected with two secondary input ends of back power supply 2, being connected with communication manager by connection of voltage-time type on-off controller 2.
The trunk roads of outlet branch road 2 are in series with isolating switch QF21 successively, on-load switch QL21, Current Transmit 21, voltage sensor PT23, in parallel with the trunk roads of outlet branch road 2 and be positioned at the fuse FU21 of isolating switch QF21 front end, the voltage transformer pt 21 that one secondary input end is connected with the other end of fuse FU21, and electric capacity C21 be successively positioned at on-load switch QL21 after in parallel with the trunk roads of outlet branch road 2, the series arm of electric capacity C22 and electrification display DXN21, earthed switch QE21, and lightning arrester F21 be positioned at voltage sensor PT22 after in parallel with the trunk roads of outlet branch road 2, the secondary output of voltage transformer pt 21 is connected with two secondary input ends of house dog 1, the control end of circuit breaker is connected with a secondary input end of house dog 1, the secondary output of Current Transmit 21 is all connected with two secondary input ends of house dog controller 1 with the secondary output of voltage sensor PT23, being connected with communication processor by connection of house dog controller 1.
The structure of outlet branch road 3 and the identical of outlet branch road 2, do not repeat them here.
Back-up source 1 and 2 adopts super capacitor in the present embodiment.
For inlet wire branch road 1, the effect of each electric component and the course of work of whole device are described.Fuse FU11, FU12 are used for protection during overcurrent in circuit.Voltage transformer pt 11, PT12 for measuring a side line voltage and providing power supply to voltage-time type intelligent switch controller 1, and charges to back-up source 1.On-load switch and circuit breaker are used for dividing/closing a floodgate in circuit, and whether potential indicator has operating voltage for showing this device, and current transformer is for detecting the three-phase current of primary side, and voltage sensor is for detecting primary side phase voltage; Electric capacity C11 and C12 is coupling capacitor.Voltage time type controller for according to the voltage transformer on its inlet wire or outlet branch road, voltage sensor, to perform deferred action, control overhead switch divides/closes a floodgate the value that current transformer detects; House dog controller is according to the voltage transformer of its outlet branch road, and voltage sensor, the value that current transformer detects is to judge overvoltage, and over current fault, controls circuit breaker and divide/close a floodgate, for ensureing customer power supply safety.
When circuit breaks down, for example break down as the voltage-time type intelligence the complete sets of equipment 2 in Fig. 2 with between voltage-time type intelligence the complete sets of equipment 3, transformer station's automatic circuit tripping operation, transformer station is through reclosing, close a floodgate again through delay confirmation after the first separating brake of transformer station action followed by the on-load switch of voltage-time type intelligence the complete sets of equipment 1, after voltage-time type intelligence the complete sets of equipment 1 combined floodgate followed by voltage-time type intelligence the complete sets of equipment 2, close a floodgate again through delay confirmation, transformer station's automatic circuit tripping operation, now voltage-time type intelligence the complete sets of equipment 2 detect decompression and separating brake and locking is closed a floodgate in Y time delay.Transformer station's automatic circuit secondary reclosing, the line voltage that voltage-time type intelligence the complete sets of equipment 1 detect according to voltage transformer and control overhead switch closes a floodgate, and now its on-load switch is followed action be in "on" position, so secondary to action due to primary; Voltage-time type intelligence the complete sets of equipment 2, owing to being in locking "on" position, do not close a floodgate, and now its on-load switch have been in gate-dividing state, so secondary to action due to the action of following of last time after time delay; And detect in no-voltage process at voltage-time type intelligence the complete sets of equipment 2, its back-up source charges through voltage transformer, make the complete sets of equipment energy delay working 90 seconds, fault message is uploaded by the communication manager be connected with voltage-time type on-off controller.
As can be seen here, the complete sets of equipment in the present embodiment possess feeder automation function and fault detect, fault type differentiate and the automatism isolation function of fault.When transient fault appears in circuit, after transient fault disappears, coordinate substation secondary reclosing, recover line powering; When there is permanent fault, coordinating substation secondary reclosing, confirming fault type, isolated fault is interval, recovers the power supply in non-faulting interval.Separately according to the pattern (segmentation/looped network) selected, perform corresponding voltage-time type logic function.
The complete sets of equipment in the present embodiment possess the arbitration functions of residual voltage overvoltage fault.When there is permanent fault in circuit, after coordinating transforming plant primary reclosing, when combined floodgate is interval to isolated fault, the utility model detects residual voltage overvoltage, after the time delay of setting, timely tripping operation, and locking close a floodgate, both avoided the tripping operation again of transformer station, again can accurately isolated fault interval, shorten interruption duration, recover the power supply in non-faulting interval.
The foregoing is only the preferred embodiment of this patent, be not limited to this patent, for a person skilled in the art, this patent can have various modifications and variations.Within all spirit at this patent and principle, any amendment done, equivalent replacement, improvement etc., within the protection range that all should be included in this patent.
Claims (4)
1. voltage-time type intelligence the complete sets of equipment, is characterized in that: it comprises with bus and the inlet wire branch road connect, the first outlet branch road, the second outlet branch road, the 3rd outlet branch road; Inlet wire branch road is identical with the first outlet branch structure, and the second outlet branch road is identical with the 3rd outlet branch structure;
Inlet wire branch road comprises the first voltage transformer, on-load switch, back-up source, the first current transformer, the first voltage sensor, the second voltage transformer, voltage-time type intelligent switch controller; On-load switch, current transformer and the first voltage sensor are connected on the backbone of inlet wire branch road successively; The control end of on-load switch connects voltage-time type intelligent switch controller; The backbone that one secondary input end of the first voltage transformer is attempted by inlet wire branch road is positioned at on-load switch front end, and its secondary output connects voltage-time type intelligent switch controller and back-up source; The backbone that one secondary input end of the second voltage transformer is attempted by inlet wire branch road is positioned at on-load switch rear end, and its secondary output connects voltage-time type intelligent switch controller and back-up source; First current transformer is connected voltage-time type intelligent switch controller with the secondary output of the first voltage sensor;
Second outlet branch road comprises tertiary voltage instrument transformer, circuit breaker, the second current transformer, the second voltage sensor, house dog controller; Circuit breaker, the second current transformer and the second voltage sensor are connected on the backbone of the second outlet branch road successively, and the control end of circuit breaker connects house dog controller; The backbone that one secondary input end of tertiary voltage instrument transformer is attempted by the second outlet branch road is positioned at circuit breaker front end, and its secondary output connects house dog controller; Second current transformer is connected voltage-time type intelligent switch controller with the secondary output of the second voltage sensor;
2. voltage-time type intelligence the complete sets of equipment as claimed in claim 1, it is characterized in that: it also comprises the communication manager with bus parallel connection, described voltage-time type intelligent switch controller is all connected with communication manager with the communication ends of house dog controller.
3. voltage-time type intelligence the complete sets of equipment as claimed in claim 1 or 2, it is characterized in that: it also comprises isolating switch, described isolating switch is connected on the backbone of each branch road, is located between on-load switch and the first voltage transformer and/or is located between circuit breaker and tertiary voltage instrument transformer.
4. voltage-time type intelligence the complete sets of equipment as claimed in claim 1 or 2, is characterized in that: described back-up source is super capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343397.4U CN204732848U (en) | 2015-05-25 | 2015-05-25 | Voltage-time type intelligence the complete sets of equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343397.4U CN204732848U (en) | 2015-05-25 | 2015-05-25 | Voltage-time type intelligence the complete sets of equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204732848U true CN204732848U (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520343397.4U Active CN204732848U (en) | 2015-05-25 | 2015-05-25 | Voltage-time type intelligence the complete sets of equipment |
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| Country | Link |
|---|---|
| CN (1) | CN204732848U (en) |
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2015
- 2015-05-25 CN CN201520343397.4U patent/CN204732848U/en active Active
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