CN203607351U - A low-voltage circuit breaker automatic closing apparatus - Google Patents
A low-voltage circuit breaker automatic closing apparatus Download PDFInfo
- Publication number
- CN203607351U CN203607351U CN201320669313.7U CN201320669313U CN203607351U CN 203607351 U CN203607351 U CN 203607351U CN 201320669313 U CN201320669313 U CN 201320669313U CN 203607351 U CN203607351 U CN 203607351U
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- circuit breaker
- low
- contact
- voltage circuit
- time relay
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Abstract
The utility model provides a low-voltage circuit breaker automatic closing apparatus, and belongs to the field of reclosing apparatuses. The low-voltage circuit breaker automatic closing apparatus comprises a low voltage circuit breaker, and is provided with a time relay. A sliding contact, a termination contact and a timepiece mechanism are arranged inside the time relay. The sliding contact and the termination contact are positioned at the two ends of a right angle connecting rod, and corresponding fixed contacts are provided for the sliding contact and the termination contact. The sliding contact and the termination contact are driven by the timepiece mechanism. A number 1 port and a number 13 port of the time relay are respectively connected to different wire outlet ends of a low voltage side of a voltage transformer, and between a fuse and the low-voltage circuit breaker, and a number 17 port and a number 3 port of the time relay are in short circuit. A number 16 port and a number 4 port are in parallel connection with the two ends of a power-operated closing button of the low voltage circuit breaker. The manpower is saved; the closing is rapid; a company image is relatively well protected; the structure is simple; and properties of convenience and easy operation are realized.
Description
Technical field
The utility model provides a kind of low-voltage circuit breaker automatic switching-on device, belongs to reclosing device field.
Background technology
For the safety and stability of operation of power networks, while preventing power system restoration power supply, electric equipment is produced and impacted, the requirement of basis " power system operation rules " in the time that transformer drops into, need to by its with load all disconnect, therefore the low-voltage circuit breaker of Circuit Fault on Secondary Transformer leading-out terminal all has the function of no-voltage trip, be when voltage is during lower than rated voltage certain value, in low-voltage circuit breaker, no-voltage release can make low-voltage circuit breaker tripping operation, after restoring electricity, by operation power personnel to on-the-spot combined floodgate low-voltage circuit breaker.If the low pressure trip device in dismounting low-voltage circuit breaker,, in the time that supply power voltage is too low, can make power consumption equipment cisco unity malfunction, even damage.
The defect of this technology is at present: one, and in the time restoring electricity, need operation power personnel to close a floodgate to on-the-spot, need larger manpower; Its two, cannot remove no-voltage release, make power system restoration power-on time very long; Its three, after restoring electricity, operation power personnel closing time is longer, causes complaining more, affects corporate image.
Utility model content
The utility model object is to provide a kind of low-voltage circuit breaker automatic switching-on device, saves manpower, closes a floodgate rapidly, has safeguarded preferably corporate image, simple in structure, convenient and easy.
Low-voltage circuit breaker automatic switching-on device described in the utility model, comprise low-voltage circuit breaker, it is characterized in that, be provided with the time relay, in the time relay, be provided with sliding contact, stop contact and clockwork, sliding contact and termination contact are positioned at the two ends of right angle connecting rod, and there is respectively its corresponding fixed contact, sliding contact is driven by clockwork with termination contact, " 1 " number port of the time relay is connected respectively to the different leading-out terminals of step down side from " 13 " number port, between fuse and low-voltage circuit breaker, by " 17 " number port of the time relay and " 3 " number port short circuit, and " 16 " number port and " 4 " number port are parallel to low-voltage circuit breaker electric switch-on button two ends, the time relay is DS-28 type exchange time relay.
Described low-voltage circuit breaker automatic switching-on device, utilize clockwork to drive sliding contact to its corresponding fixed contact motion, when sliding contact moves to its corresponding fixed contact, after of short duration contact, separate again, send pulse enable signal electric switch-on mechanism action, low-voltage circuit breaker closes a floodgate, " 1 " number port of the time relay is connected respectively to the different leading-out terminals of step down side from " 13 " number port, between low-voltage circuit breaker and fuse, save the link of incoming call checkout equipment, can make the time relay after power system recovery power supply, the very first time restores electricity, and the time relay that can avoid overcurrent to cause burns, and sliding contact fixed contact corresponding to it be of short duration contact and separate after, a segment distance also can move, until stop after contact fixed contact corresponding to it contacts stopping, at this moment the distance between its corresponding fixed contact of sliding contact can be avoided arc through air, very reliable, the mechanical framework of entirety, its reliability of operation is also better than the complicated Single Chip Microcomputer (SCM) system that can realize this function far away, and cost is well below single shot reclosing device.
Described low-voltage circuit breaker automatic switching-on device, external divider resistance between " 13 " number port of the time relay and " 15 " port.Make solenoid iron core adhesive armature after connection, instantaneous normally-closed contact is disconnected, divider resistance seals in loop, because electric power system is not stopped power supply, the time relay just has power supply supply always, by time relay manufacturer production seal in loop with the supporting divider resistance of the time relay, solenoid can not be burnt in long-time conducting.
The beneficial effect that the utility model compared with prior art brought is:
Low-voltage circuit breaker automatic switching-on device described in the utility model, utilize clockwork to drive sliding contact to its corresponding fixed contact motion, when sliding contact moves to its corresponding fixed contact, after of short duration contact, separate again, send pulse enable signal electric switch-on mechanism action, low-voltage circuit breaker closes a floodgate, " 1 " number port of the time relay is connected respectively to the different leading-out terminals of step down side from " 13 " number port, between fuse and low-voltage circuit breaker, save the link of incoming call checkout equipment, can make the time relay after power system recovery power supply, the very first time restores electricity, and the time relay that can avoid overcurrent to cause burns, and sliding contact fixed contact corresponding to it be of short duration contact and separate after, a segment distance also can move, until stop after contact fixed contact corresponding to it contacts stopping, at this moment the distance between its corresponding fixed contact of sliding contact can be avoided arc through air, very reliable, the mechanical framework of entirety, its reliability of operation is also better than the complicated Single Chip Microcomputer (SCM) system that can realize this function far away, and cost is well below single shot reclosing device.
Solenoid is iron core adhesive armature after connection, instantaneous normally-closed contact is disconnected, divider resistance seals in loop, because electric power system is not stopped power supply, the time relay just has power supply supply always, by time relay manufacturer production seal in loop with the supporting divider resistance of the time relay, solenoid can not be burnt in long-time conducting.
Described time relay time delay can effectively be avoided shoving on circuit in 10 seconds to 15 seconds, prevent the damage of electric equipment, avoided motor drive mechanism insensitive equipment combined floodgate failure the time of contact of 2 seconds to 4 seconds or be failure to actuate, also can not make to need separating brake time, sending sub-gate signal cannot separating brake.Entirety is used mechanical part, very reliable, and simple in structure, is easy to realize, and cost is low, and under the environment of electric current and spread of voltage, impact resistance is better than electronic unit far away.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the utility model sliding contact and termination contact fundamental diagram.
In figure: 1, " 1 " number port; 2, " 3 " number port; 3, " 4 " number port; 4, " 13 " number port; 5, " 15 " number port; 6, " 16 " number port; 7, " 17 " number port; 8, fuse; 9, low-voltage circuit breaker; 10, the time relay; 11, sliding contact; 12, stop contact; 13, fixed contact; 14, instantaneous normally-closed contact; 15, instantaneous normally opened contact; 16, divider resistance.
Embodiment
Below in conjunction with the utility model, low-voltage circuit breaker automatic switching-on device embodiment is described further:
Embodiment 1: as depicted in figs. 1 and 2, low-voltage circuit breaker automatic switching-on device described in the utility model, comprise low-voltage circuit breaker 9, be provided with DS-28 type exchange time relay 10, in the time relay 10, be provided with sliding contact 11, stop contact 12 and clockwork, sliding contact 11 and termination contact 12 are positioned at the two ends of right angle connecting rod, and there is respectively its corresponding fixed contact 13, sliding contact 11 is driven by clockwork with termination contact 12, it is 15 seconds that clockwork arranges time delay, 13 times of contact of sliding contact 11 fixed contact corresponding with it are 4 seconds, " 1 " number port one of the time relay 10 is connected respectively to the different leading-out terminals of step down side from " 13 " number port 4, between fuse 8 and low-voltage circuit breaker 9, by " 17 " number port of the time relay 10 7 and " 3 " number port 2 short circuits, and " 16 " number port 6 and " 4 " number port 3 are parallel to low-voltage circuit breaker 9 electric switch-on button two ends.The wherein time relay 10 inside, between " 1 " number port one and " 13 " number port 4, connect with instantaneous normally-closed contact 14 for solenoid, " 15 " number port 5 is relation in parallel with " 13 " number port 4, between " 16 " number port 6 and " 17 " number port 7, being instantaneous normally opened contact 15, is its corresponding fixed contact 13 of sliding contact 11 between " 3 " number port 2 and " 4 " number port 3.
Embodiment 2: on the architecture basics of embodiment 1, external divider resistance 16 between " 13 " number port 4 of the time relay 10 and " 15 " number port 5.
Operation principle and operating procedure:
As depicted in figs. 1 and 2, the time relay with sliding contact 11 10 power inputs and power output end are connected respectively to the different leading-out terminal of step down side, between fuse 8 and low-voltage circuit breaker 9, the time relay 10 is directly powered by transmission line, the switches set that corresponding with it with sliding contact 11 instantaneous normally opened contact 15 fixed contact 13 is formed is connected, and be parallel to the two ends of low-voltage circuit breaker 9 electric switch-on buttons, its operation principle is divided into following three kinds of states:
State 1: when circuit is during in power down mode, the time relay 10 is in the normal state, in the time relay 10, be provided with two moving contacts, be sliding contact 11 and termination contact 12, sliding contact 11 is positioned at initial position with termination contact 12, fixed contact 13 corresponding with it disconnects respectively, instantaneous normally-closed contact 14 closures of the time relay 10, and the instantaneous normally opened contact 15 of the time relay 10 disconnects.
State 2: when circuit restores electricity, after transformer primary side closes a floodgate, Circuit Fault on Secondary Transformer leading-out terminal is charged, at this moment the time relay 10 also restores electricity, in the time relay 10, be provided with solenoid, after solenoid energising, make iron core adhesive armature, instantaneous normally-closed contact 14 is disconnected, on the port at instantaneous normally-closed contact 14 two ends, be connected with divider resistance 16, after instantaneous normally-closed contact 14 disconnects, divider resistance 16 seals in solenoid loop, instantaneous normally opened contact 15 closures, in the time relay 10, be provided with clockwork, sliding contact 11 starts to clockwise rotate under the drive of clockwork with termination contact 12, sliding contact 11 is with 12 whiles of termination contact and keep synchronized moving to its corresponding fixed contact 13, after the time setting, sliding contact 11 disconnects after connecting with 12 short time of termination contact again, in the time that the short time connects, it is the pulse of 2 seconds to 4 seconds that the time relay 10 can send a duration to low-voltage circuit breaker 9 motor drive mechanisms, motor drive mechanism is received after pulse signal, low-voltage circuit breaker 9 moves, become combined floodgate from separating brake, sliding contact 11 fixed contact 13 short time corresponding with it connect after disconnection again, can continue motion with stopping contact 12, contact until stop contact 12 fixed contact 13 corresponding to it, move to position of rest, sliding contact 11 and 12 stop motions simultaneously of termination contact, and remain on position of rest, make to disconnect after the of short duration contact of its corresponding fixed contact 13 of sliding contact 11, and continue to stop after motion certain distance, prevent that low-voltage circuit breaker 9 from receiving switching signal all the time, in the time of needs separating brake, sending sub-gate signal cannot separating brake, also prevented from causing electric current to puncture air because of sliding contact 11 fixed contact 13 hypotelorisms corresponding with it, make low-voltage circuit breaker 9 receive all the time switching signal, and low-voltage circuit breaker 9 is closed again after time delay after restoring electricity, effectively avoid shoving on power circuit.
State 3: in the time that circuit has a power failure again, the time relay 10 has lost electric current and voltage, solenoid dead electricity, iron core separates with armature, instantaneous normally-closed contact 14 becomes closure from disconnection, instantaneous normally opened contact 15 becomes disconnection from closure, in the time relay 10, be provided with restoring spring, sliding contact 11 is grouped into initial position with termination contact 12 next time in the driving of restoring spring, because instantaneous normally opened contact 15 becomes disconnection from closure, when making sliding contact 11 fixed contact 13 corresponding to it contacting again in the driving of restoring spring is grouped into initial position process next time, can be because not existing induced current to cause low-voltage circuit breaker 9 to close a floodgate in circuit.
Described low-voltage circuit breaker automatic switching-on device is for the method for automatic closing after no-voltage trip, entirety is used mechanical part, very reliable, and simple in structure, be easy to realize, cost is low, under the environment of electric current and spread of voltage, impact resistance is better than electronic unit far away, has guaranteed that Circuit Fault on Secondary Transformer can automatic closing after restoring electricity, and has reduced greatly the workload of manpower and 95598 service platforms.
Claims (2)
1. a low-voltage circuit breaker automatic switching-on device, comprise low-voltage circuit breaker, it is characterized in that, be provided with the time relay (10), in the time relay (10), be provided with sliding contact (11), stop contact (12) and clockwork, sliding contact (11) and termination contact (12) are positioned at the two ends of right angle connecting rod, and there is respectively its corresponding fixed contact (13), sliding contact (11) is driven by clockwork with termination contact (12), " 1 " number port (1) of the time relay (10) is connected respectively to the different leading-out terminals of step down side from " 13 " number port (4), between fuse (8) and low-voltage circuit breaker (9), by " 17 " number port (7) of the time relay (10) and " 3 " number port (2) short circuit, and " 16 " number port (6) and " 4 " number port (3) are parallel to low-voltage circuit breaker (9) electric switch-on button two ends, the time relay (10) is DS-28 type exchange time relay.
2. low-voltage circuit breaker automatic switching-on device according to claim 1, is characterized in that external divider resistance (16) between " 13 " number port (4) of the time relay (10) and " 15 " port (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669313.7U CN203607351U (en) | 2013-10-28 | 2013-10-28 | A low-voltage circuit breaker automatic closing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669313.7U CN203607351U (en) | 2013-10-28 | 2013-10-28 | A low-voltage circuit breaker automatic closing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607351U true CN203607351U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320669313.7U Expired - Fee Related CN203607351U (en) | 2013-10-28 | 2013-10-28 | A low-voltage circuit breaker automatic closing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531408A (en) * | 2013-10-28 | 2014-01-22 | 李小涛 | Automatic low-voltage circuit breaker closing device and automatic closing method by using device after no-voltage release |
| CN104659733A (en) * | 2015-01-26 | 2015-05-27 | 国网浙江海盐县供电公司 | Distribution transformer low-voltage air switch device with automobile resetting function and automobile resetting method |
-
2013
- 2013-10-28 CN CN201320669313.7U patent/CN203607351U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531408A (en) * | 2013-10-28 | 2014-01-22 | 李小涛 | Automatic low-voltage circuit breaker closing device and automatic closing method by using device after no-voltage release |
| CN103531408B (en) * | 2013-10-28 | 2015-09-30 | 李小涛 | Low-voltage circuit breaker automatic switching-on device and the method for automatic closing after no-voltage trip thereof |
| CN104659733A (en) * | 2015-01-26 | 2015-05-27 | 国网浙江海盐县供电公司 | Distribution transformer low-voltage air switch device with automobile resetting function and automobile resetting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20181028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |