CN202585305U - High voltage drop switch automatic disconnection device - Google Patents
High voltage drop switch automatic disconnection device Download PDFInfo
- Publication number
- CN202585305U CN202585305U CN2012201505014U CN201220150501U CN202585305U CN 202585305 U CN202585305 U CN 202585305U CN 2012201505014 U CN2012201505014 U CN 2012201505014U CN 201220150501 U CN201220150501 U CN 201220150501U CN 202585305 U CN202585305 U CN 202585305U
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- CN
- China
- Prior art keywords
- voltage drop
- iron core
- type switch
- drop type
- insulating bar
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Abstract
The utility model discloses a high voltage drop switch automatic disconnection device comprising a protection circuit for protecting equipment and an execution mechanism for controlling a high voltage drop switch to be disconnected automatically. The execution mechanism is connected with the protection circuit. When the equipment is abnormal, the protection circuit can generate a starting signal to start the execution mechanism which is connected with the protection circuit to carry out action, and the protection circuit which carries out action disconnects the high voltage drop switch to realize power-off protection. The high voltage drop switch automatic disconnection device has simple structure and rapid action and can safely, rapidly, reliably and automatically control the disconnection of the high voltage drop switch, thus a fault can be quickly and reliably removed, and a purpose of protecting electrical equipment is achieved.
Description
Technical field
The utility model relates to a kind of high-voltage drop type switch, particularly a kind of high-voltage drop type switch automatic disconnection device.
Background technology
At present, the existing high-voltage drop type switch of installing is because simple in structure, low price; Characteristics such as easy to use extensively are installed in the distribution transformer high-pressure side, as give, the long-term overload and the short-circuit protection of distribution line and power transformer; Simultaneously, also can be used to drawing circuit and unloaded transformer, it is except melt fusing is fallen automatically; Also can pass through insulating bar, break off or connect circuit.But; This switch mainly is that the fusing through melt comes disengagement failure equipment, and the scope of protection very limited and reliable in action property, sensitivity, property is all relatively poor rapidly, causes the distribution transformer protection not in place and burnt easily; Simultaneously in the electrical network of little county town, mountain area; Also have the networking that hangs up a Chinese lantern of more 10kV circuit and small hydropower station, in servicely occur the transformer substation switch tripping operation easily, small hydropower station is in time shut down; Cause the long-time overvoltage independence of circuit minor scale power net operation, will cause subscriber equipment overvoltage to occur and can not get protection and burnt phenomenon.
The utility model content
The purpose of the utility model is to overcome the weak point of prior art; And provide a kind of can safety, rapidly, sensitive, control the disconnection of high-voltage drop type switch automatically reliably, thereby high-voltage drop type switch automatic disconnection device that can fast and reliable ground excision fault.
A kind of high-voltage drop type switch automatic disconnection device; Its structural feature is: comprise the actuator that is used to protect the protective circuit of equipment and is used to control the automatic disconnection of high-voltage drop type switch; Actuator links to each other with protective circuit; An enabling signal takes place can produce when unusual at equipment and starts coupled actuator and move in described protective circuit, and high-voltage drop type switch realization power-off protection
will be broken off by the actuator that action takes place.
The high-voltage drop type switch automatic disconnection device of this structure in use, is installed in protective circuit by on the circuit of protection equipment; Actuator is installed on the support insulator of high-voltage drop type switch, and makes the position that actuator's action the time can be run into the high pressure fusion tube, like this in case occurred unusually by protection equipment; Protective circuit will be sent signal and given actuator; And start actuator's action, and control the disconnection of high-voltage drop type switch automatically, thus can fast and reliable ground excision fault.
Described actuator is a kind of electromagnetically operated valve, and the coil of electromagnetically operated valve links to each other with protective circuit, and the iron core of electromagnetically operated valve is connected with insulating bar, and iron core can drive insulating bar and do straight reciprocating motion, can run into the high pressure fusion tube to push the high pressure fusion tube open during the insulating bar action.
Adopt the electromagnetically operated valve of this structure, in case taken place when unusual by protection equipment, protective circuit will be sent the signal of telecommunication and given coil; Coil electricity then; Get electric coil and will make that iron core moves, move, to realize pushing open high-voltage drop type switch high-pressure fusion tube thereby drive insulating bar.
Described electromagnetically operated valve includes housing, coil, iron core, back-moving spring and insulating bar; Described iron core is arranged at the housing inner chamber and can reciprocatingly moves along the axis direction of inner chamber; Coil is installed on the housing, and insulating bar is connected in an end of iron core, and projects outward from the housing; On iron core, also be provided with to make and produce the back-moving spring that the iron core that moves resets, can electromagnetically operated valve be fixed on the jockey on the high-voltage drop type switch support insulator also being provided with on the shell because coil gets electric back.
The electromagnetically operated valve of this structure, when coil get electric after, will drive iron core and move, move thereby drive the insulating bar link to each other with iron core, in case coil losing electricity, then iron core is dead electricity, at this moment iron core will be under the effect of back-moving spring return.
Being connected between described iron core and the insulating bar can change being connected of insulating bar relative iron core position.
Adopt the connected mode between this insulating bar and the iron core, just can control the distance of moving between the high pressure fusion tube of insulating bar and high pressure type drop switch easily.
Position adjustments between described insulating bar and the iron core or for being provided with jack in a row along the axis direction of insulating bar is fixed the change that can realize both relative positions with different jacks on the insulating bar and iron core in use.
Position adjustments between described insulating bar and the iron core or for being provided with slotted hole along the axis direction of insulating bar is fixed in the change that both relative positions can be realized in positions different on the slotted hole with iron core in use.
Described back-moving spring or be arranged at the end of iron core, or be set in the iron core outer ring.
Jockey on the described housing is for being connected the fixedly anchor ear on the high-voltage drop type switch support insulator with electromagnetically operated valve.
Described housing includes insulation crust and end cap, and end cap is detachable the connection with insulation crust, and jockey is arranged on the end cap.
Described equipment protection circuit is the main relay protection circuit that adopts.
Described relay protection circuit mainly is made up of the sampling relay and the auxiliary relay that connect successively; Or constitute by the sampling relay, the time relay and the auxiliary relay that connect successively.Gather the various abnormal conditions of circuit by the sampling relay, as utilize overvoltage relay to gather the power system voltage appearance unusually; Utilize the excess temperature relay to gather long-term too high the unusual of transformer that burn of temperature of distribution transformer; Utilize zero phase-sequence relay to prevent that ground connection from appearring in circuit; It is various unusual that zero sequence etc. can be installed; The protection relay of installation difference in functionality all capable of using is realized gathering various unusual; Then utilize the time relay to carry out suitable time-delay again, then start the action of actuator again through auxiliary relay can prevent to protect malfunction.
In sum, the utility model is compared the following advantage of prior art:
The high-voltage drop type switch automatic disconnection device of the utility model utilizes the various simple and easy short-circuit protection circuit of prior art; Reach actuator by protective circuit control; Realize the defencive function of various needs; Like line over-voltage, the defencive function of each side such as inside and outside of distribution transformer is short-circuited, temperature is too high, circuit broken string or ground connection.Package unit is simple in structure, reliable in action, can control the disconnection of high-voltage drop type switch safely, rapidly, reliably automatically, thereby can fast and reliable ground excision fault, reaches the purpose of protection electric equipment.
Description of drawings
The single-phase schematic diagram of movements of high-voltage drop type switching device embodiment of Fig. 1 over-voltage protection function.
Fig. 2 is the electromagnetic valve actuating gear installation drawing.
Fig. 3 is the A-A cutaway view of Fig. 2.
Label declaration: 1.10kV circuit, 2. high pressure fusion tube, 3 electromagnetic valve actuating gears, 4. support insulator, 5. electromagnetic valve coil power supply outer lead; 6. relay protection circuit, 7. auxiliary relay, the 8. time relay, 9. overvoltage relay; 10. distribution transformer, 11. 220V circuits, 12,13 sampling relay input ports, 21 insulating bars; 22. insulation crust, 23. electromagnetically operated valve iron cores, 24. iron core positive stop blocks, 25. back-moving springs; 26. electromagnetic valve coil, 27. insulating bar adjustment screw, 28. end caps, 29. jockeys.
Embodiment
Below in conjunction with embodiment the utility model is described in more detail.
A kind of high-voltage drop type switch automatic disconnection device; Comprise the actuator that is used to protect the protective circuit of equipment and is used to control the automatic disconnection of high-voltage drop type switch; Actuator links to each other with protective circuit; An enabling signal takes place can produce when unusual at equipment and starts coupled actuator and move in described protective circuit, and the actuator that action takes place will push the high-voltage drop type switch open and realize guarantor's power-off protection
.Being connected between described iron core and the insulating bar can change being connected of insulating bar relative iron core position.Position adjustments between described insulating bar and the iron core is fixed in the change that both relative positions can be realized in positions different on the slotted hole with iron core in use for the axis direction along insulating bar is provided with slotted hole.Described electromagnetically operated valve includes housing, coil, iron core, back-moving spring and insulating bar; Described iron core is arranged at the housing inner chamber and can reciprocatingly moves along the axis direction of inner chamber; Coil is installed on the housing, and insulating bar is connected in an end of iron core, and projects outward from the housing; On iron core, also be provided with to make and produce the back-moving spring that the iron core that moves resets, can electromagnetically operated valve be fixed on the jockey on the high-voltage drop type switch support insulator also being provided with on the shell because coil gets electric back.Described housing includes insulation crust and end cap 28, and end cap is detachable the connection with insulation crust, and jockey is arranged on the end cap.Described back-moving spring is arranged at the end of iron core.The one of which end is supported on the end cap, and the other end is supported on the iron core, and the jockey 29 on the described housing is for being connected the fixedly anchor ear on the high-voltage drop type switch support insulator with electromagnetically operated valve.Described equipment protection circuit is the main relay protection circuit that adopts.Described relay protection circuit mainly is made up of the sampling relay, the time relay and the auxiliary relay that connect successively.
Said electromagnetically operated valve is concrete, and electromagnetically operated valve iron core 23 left ends link to each other with back-moving spring 25 through iron core positive stop block 24 like Fig. 2,3, right-hand member and insulating bar 21 mechanical connections, and can the free activity of ability in insulation crust 22 cavitys.For the switch motion of reliable promotion drop type, insulating bar 21 promote-sides make T font or circular arc type usually, and the distance of insulating bar and the operation of high-voltage drop type switch, can adjust through electromagnetically operated valve iron core 23 and insulating bar adjustment screw 27.
Below when the overvoltage fault occurring with circuit, the high-voltage drop type switch can reliably break off, thus an embodiment (is example with the single phasing protection) that can protect consumer electronics equipment not burnt.(Electromagnetically-operating actuator devices 3 is installed on the former support insulator 4 in Fig. 1; And through relay protection circuit 6 realize the action; U0 connects the low pressure neutral line of distribution transformer 10); Just often, 10kV circuit 1 offers user 220V circuit 11 normal voltages after high pressure fusion tube 2 is through distribution transformer 10.But overvoltage appears in A in 220V circuit 11 mutually; Be connected on 9 actions of the alternate overvoltage relay of distribution power transformation device 10 low pressure outlet side A; Overvoltage relay 9 contact relays start-up time 8, the time relay 8 start auxiliary relay 7 through suitable time-delay (can prevent to protect malfunction); Auxiliary relay 7 contacts can start the electromagnetic valve coil energising in the Electromagnetically-operating actuator devices 3 behind electromagnetic valve coil power supply outer lead 5.In Fig. 2,3; After electromagnetic valve coil 26 energisings, electromagnetically operated valve iron core 23 is operation to the right apace under the coil suction, promotes insulating bar 21 and in insulation crust 22 cavitys, moves right; Automatically push the high-voltage drop type switch 2 among Fig. 1 open, fault and high voltage source are isolated.After fault is isolated effectively, the protection involution, in Fig. 2,3, electromagnetic valve coil 26 dead electricity, under the effect of back-moving spring 25, electromagnetically operated valve iron core 23 and insulating bar 21 direction left automatically reset.
Install other protective device additional like need, the actuating of relay contact that only needs to sample is inserted with protection access port 12 places and is got final product; Like the need quick acting, do not need delay protection, can sampling actuating of relay contact be got final product from 13 accesses of protection access port.
It is identical with prior art that present embodiment is not stated part.
Claims (10)
1. high-voltage drop type switch automatic disconnection device; It is characterized in that: comprise the actuator that is used to protect the protective circuit of equipment and is used to control the automatic disconnection of high-voltage drop type switch; Actuator links to each other with protective circuit; An enabling signal takes place can produce when unusual at equipment and starts coupled actuator and move in described protective circuit, and high-voltage drop type switch realization power-off protection
will be broken off by the actuator that action takes place.
2. high-voltage drop type switch automatic disconnection device according to claim 1; It is characterized in that: described actuator is a kind of electromagnetically operated valve; The coil of electromagnetically operated valve links to each other with protective circuit; The iron core of electromagnetically operated valve is connected with insulating bar, and iron core can drive insulating bar and do straight reciprocating motion, can run into the high pressure fusion tube to push the high pressure fusion tube open during the insulating bar action.
3. high-voltage drop type switch automatic disconnection device according to claim 2; It is characterized in that: described electromagnetically operated valve includes housing, coil, iron core, back-moving spring and insulating bar; Described iron core is arranged at the housing inner chamber and can reciprocatingly moves along the axis direction of inner chamber; Coil is installed on the housing, and insulating bar is connected in an end of iron core, and projects outward from the housing; On iron core, also be provided with to make and produce the back-moving spring that the iron core that moves resets, can electromagnetically operated valve be fixed on the jockey on the high-voltage drop type switch support insulator also being provided with on the shell because coil gets electric back.
4. high-voltage drop type switch automatic disconnection device according to claim 3 is characterized in that: being connected between described iron core and the insulating bar can change being connected of insulating bar relative iron core position.
5. high-voltage drop type switch automatic disconnection device according to claim 4; It is characterized in that: the position adjustments between described insulating bar and the iron core or for being provided with jack in a row along the axis direction of insulating bar, in use different jacks on the insulating bar and iron core are fixed the change that can realize both relative positions; Position adjustments between described insulating bar and the iron core or for being provided with slotted hole along the axis direction of insulating bar is fixed in the change that both relative positions can be realized in positions different on the slotted hole with iron core in use.
6. high-voltage drop type switch automatic disconnection device according to claim 5 is characterized in that: described back-moving spring or be arranged at the end of iron core, or be set in the iron core outer ring.
7. high-voltage drop type switch automatic disconnection device according to claim 6, it is characterized in that: the jockey on the described housing is for being connected the fixedly anchor ear on the high-voltage drop type switch support insulator with electromagnetically operated valve.
8. high-voltage drop type switch automatic disconnection device according to claim 7, it is characterized in that: described housing includes insulation crust and end cap, and end cap is detachable the connection with insulation crust, and jockey is arranged on the end cap.
9. according to any one described high-voltage drop type switch automatic disconnection device of claim 1-8, it is characterized in that: described equipment protection circuit is for adopting relay protection circuit.
10. high-voltage drop type switch automatic disconnection device according to claim 9; It is characterized in that: described relay protection circuit mainly is made up of the sampling relay and the auxiliary relay that connect successively, perhaps is made up of sampling relay, the time relay and auxiliary relay.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201505014U CN202585305U (en) | 2012-04-11 | 2012-04-11 | High voltage drop switch automatic disconnection device |
| CN201210104484.5A CN102646559B (en) | 2012-04-11 | 2012-04-11 | Automatic disconnecting device of high-voltage falling type switch |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201505014U CN202585305U (en) | 2012-04-11 | 2012-04-11 | High voltage drop switch automatic disconnection device |
| CN201210104484.5A CN102646559B (en) | 2012-04-11 | 2012-04-11 | Automatic disconnecting device of high-voltage falling type switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585305U true CN202585305U (en) | 2012-12-05 |
Family
ID=69783814
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210104484.5A Expired - Fee Related CN102646559B (en) | 2012-04-11 | 2012-04-11 | Automatic disconnecting device of high-voltage falling type switch |
| CN2012201505014U Withdrawn - After Issue CN202585305U (en) | 2012-04-11 | 2012-04-11 | High voltage drop switch automatic disconnection device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210104484.5A Expired - Fee Related CN102646559B (en) | 2012-04-11 | 2012-04-11 | Automatic disconnecting device of high-voltage falling type switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102646559B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646559A (en) * | 2012-04-11 | 2012-08-22 | 福建省连城县供电有限公司 | Automatic disconnecting device of high-voltage falling type switch |
| CN106654626A (en) * | 2016-11-01 | 2017-05-10 | 国网福建省电力有限公司 | Mis-operation prevention device for low-voltage grounding ring |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739770B (en) * | 2020-07-15 | 2022-04-12 | 国网甘肃省电力公司兰州供电公司 | Secondary power transmission self-resetting fuse |
| CN116417303B (en) * | 2023-03-21 | 2023-09-01 | 国网山东省电力公司成武县供电公司 | High-voltage intelligent drop-out fuse device and safe gate opening and closing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151536Y (en) * | 1993-03-06 | 1993-12-29 | 罗义 | High voltage falldown circuit breaker |
| CN201038096Y (en) * | 2006-05-31 | 2008-03-19 | 李志学 | Remote-control high voltage combined type drop fuse device |
| CN101320660B (en) * | 2008-07-17 | 2010-10-06 | 秦宇翔 | High voltage permanent magnet type drop-out fuse |
| CN201788919U (en) * | 2010-03-02 | 2011-04-06 | 沈俊国 | High voltage dropout fuse free of fusing |
| CN102646559B (en) * | 2012-04-11 | 2014-08-13 | 国家电网公司 | Automatic disconnecting device of high-voltage falling type switch |
-
2012
- 2012-04-11 CN CN201210104484.5A patent/CN102646559B/en not_active Expired - Fee Related
- 2012-04-11 CN CN2012201505014U patent/CN202585305U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646559A (en) * | 2012-04-11 | 2012-08-22 | 福建省连城县供电有限公司 | Automatic disconnecting device of high-voltage falling type switch |
| CN102646559B (en) * | 2012-04-11 | 2014-08-13 | 国家电网公司 | Automatic disconnecting device of high-voltage falling type switch |
| CN106654626A (en) * | 2016-11-01 | 2017-05-10 | 国网福建省电力有限公司 | Mis-operation prevention device for low-voltage grounding ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102646559A (en) | 2012-08-22 |
| CN102646559B (en) | 2014-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20140813 |
|
| RGAV | Abandon patent right to avoid regrant |