CN108054058B - Control monitoring circuit for breaker spring energy storage - Google Patents
Control monitoring circuit for breaker spring energy storage Download PDFInfo
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- CN108054058B CN108054058B CN201810024737.5A CN201810024737A CN108054058B CN 108054058 B CN108054058 B CN 108054058B CN 201810024737 A CN201810024737 A CN 201810024737A CN 108054058 B CN108054058 B CN 108054058B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 214
- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000011835 investigation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures
Abstract
The invention provides a control and monitoring circuit for energy storage of a circuit breaker spring. The circuit comprises a direct-current control power supply, a switching-on circuit connected with the direct-current control power supply, an energy-free switching value signal loop connected with the switching-on circuit in parallel, and an energy storage state indicating circuit. The non-energy-storage switching value signal loop comprises a normally closed switch in the energy storage switch group, and before the closing spring stores full energy, the non-energy-storage switching value signal loop is always connected to indicate that the closing spring does not store energy. The energy storage state indicating circuit comprises a normally open switch in the energy storage switch group. The operating mechanism of the closing spring comprises a switch toggle mechanism, when the closing spring stores full energy, each switch in the energy storage switch group is toggled through the switch toggle mechanism, so that each switch changes state, the energy storage state indicating circuit is connected to indicate the full energy storage of the closing spring, and meanwhile, the non-energy storage switching value signal loop is disconnected. The invention can realize the monitoring and alarming of the faults of the spring energy storage loop and the rapid searching of the faults of the energy storage loop, and improves the efficiency of searching the faults.
Description
Technical Field
The invention relates to the technical field of electric control loops of circuit breaker spring energy storage mechanisms, in particular to a circuit breaker spring energy storage control and monitoring circuit.
Background
The high voltage circuit breaker is used for switching on or off normal working current or short-circuit fault current in a high voltage circuit, and has very important function in a power system. At present, many circuit breakers adopt spring energy storage operating mechanisms, and the spring energy storage operating mechanisms mainly act to stretch closing or opening springs so as to enable the closing or opening springs to have corresponding potential energy. When the switch-on or switch-off is carried out, the switch-on or switch-off electromagnet acts, and the switch-on or switch-off spring rapidly switches on or switches off the moving contact of the circuit breaker, so that the main purpose is to reduce the existing time of the switch-on or switch-off electric arc and achieve the purpose of rapid arc extinction. The spring energy storage operating mechanism is operated manually or electrically.
However, in practical application, the spring energy storage micro switch and the electric loop branch thereof have a plurality of faults frequently, are unfamiliar with each electric branch of spring energy storage, have insufficient energy storage signal indication monitoring function, cause misjudgment, prolong fault investigation time, have low fault investigation efficiency, and influence normal closing operation and power supply of the circuit breaker.
Therefore, a control monitoring circuit for spring energy storage of a circuit breaker is needed, background monitoring alarm display of faults of a spring energy storage loop can be achieved, and the fault searching efficiency of the energy storage loop can be improved.
Disclosure of Invention
The invention aims to provide a circuit for controlling and monitoring energy storage of a breaker spring, which is used for automatically monitoring energy storage faults of a closing spring of the breaker.
In order to solve the technical problems, the invention discloses the following technical scheme:
a control and monitoring circuit for energy storage of a breaker spring is provided. The control monitoring circuit for the energy storage of the breaker spring comprises a direct current control power supply, a switching-on circuit connected with the direct current control power supply and used for switching on the breaker, an energy-storage-free switching value signal loop connected with the switching-on circuit in parallel, and an energy storage state indicating circuit. Wherein,
the non-energy-storage switching value signal loop comprises a normally closed switch in an energy storage switch group, and before the closing spring stores full energy, the non-energy-storage switching value signal loop is in an on state to indicate that the closing spring does not store energy;
the energy storage state indicating circuit comprises a normally open switch in an energy storage switch group;
the operating mechanism of the closing spring comprises a switch toggle mechanism, when the closing spring is full of energy, each switch in the energy storage switch group is toggled through the switch toggle mechanism, so that each switch changes state, the energy storage state indicating circuit is connected to indicate that the closing spring is full of energy, and meanwhile, the non-energy storage switch quantity signal loop is disconnected.
For the control monitoring circuit of the breaker spring energy storage, the switching-on circuit comprises a switching-on control switch, a device in a microcomputer protection measurement and control device, a normally open switch in an energy storage switch group, an auxiliary normally closed contact of the breaker and a switching-on coil, wherein the device in the microcomputer protection measurement and control device comprises a switching-on relay coil, and the normally open switch is a first normally open switch.
The control and monitoring circuit for the energy storage of the breaker spring further comprises a direct-current switching-on power supply and an energy storage loop which is connected with the direct-current switching-on power supply and stores the energy of the switching-on spring.
For the control monitoring circuit of the breaker spring energy storage, the energy storage loop comprises an energy storage change-over switch, a normally closed switch in an energy storage switch group and an energy storage motor, wherein the normally closed switch is a first normally closed switch.
And for the control and monitoring circuit for the energy storage of the breaker spring, the energy storage state indicating circuit comprises an energy storage position indicating circuit connected with the energy storage loop in parallel.
For the control monitoring circuit of breaker spring energy storage, the energy storage position indicating circuit comprises an energy storage position indicating lamp and a normally open switch in the energy storage switch group, wherein the normally open switch is a second normally open switch.
And for the control and monitoring circuit for the energy storage of the breaker spring, the energy storage state indicating circuit comprises an energy storage state display circuit connected with the closing circuit in parallel.
For the control monitoring circuit of the breaker spring energy storage, the energy storage state display circuit comprises a switch state indicator and a normally open switch in the energy storage switch group, wherein the normally open switch is a third normally open switch.
For the control monitoring circuit of the breaker spring energy storage, the switch state indicator comprises a digital display tube.
For the control monitoring circuit of the breaker spring energy storage, the non-energy storage switching value signal loop comprises a device in the microcomputer protection measurement and control device and a normally closed switch in the energy storage switch group, wherein the device in the microcomputer protection measurement and control device comprises an indicator lamp and a communication interface, and the normally closed switch is a second normally closed switch.
The circuit for controlling and monitoring the energy storage of the breaker spring has the main advantages that:
the problems of a spring energy storage micro switch and an electric loop thereof that the number of branches is large, faults frequently occur, an energy storage signal indicates that a monitoring function is insufficient, judgment errors are caused, fault investigation time is prolonged, fault investigation efficiency is low, normal closing operation and power supply of a circuit breaker are affected can be solved, monitoring and alarming of faults of the spring energy storage loop and quick searching of faults of the energy storage loop can be achieved, background monitoring and alarming of faults of the spring energy storage loop can be achieved, and accordingly energy storage loop fault searching efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a circuit for controlling and monitoring energy storage of a breaker spring according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms first, second and the like in the description and in the claims and in the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented in other sequences than those illustrated herein.
Fig. 1 is a schematic structural diagram of a circuit for controlling and monitoring energy storage of a breaker spring according to an embodiment of the present invention. As shown in fig. 1, the control and monitoring circuit for the energy storage of the breaker spring provided by the embodiment comprises a direct current control power supply KM, a switching-on circuit connected with the direct current control power supply KM for switching on the breaker, an energy storage-free switching value signal loop connected with the switching-on circuit in parallel, and an energy storage state indicating circuit. The non-energy-storage switching value signal loop comprises a normally closed switch in the energy storage switch group 1, and before the closing spring stores full energy, the non-energy-storage switching value signal loop is in an on state to indicate that the closing spring does not store energy. The energy storage state indicating circuit comprises a normally open switch in the energy storage switch group 1. The operating mechanism of the closing spring comprises a switch toggle mechanism, when the closing spring stores full energy, all the switches in the energy storage switch group 1 are toggled through the switch toggle mechanism, so that all the switches change state, the energy storage state indicating circuit is connected to indicate that the closing spring stores full energy, and meanwhile, the non-energy storage switching value signal loop is disconnected. Wherein, each switch in the energy storage switch group 1 can be a micro switch.
The switching-on circuit comprises a switching-on control switch 1KK, devices in a microcomputer protection measurement and control device 2, a normally open switch in an energy storage switch group 1, an auxiliary normally closed contact QF of a breaker and a switching-on coil HQ. Further, the microcomputer protection measurement and control device 2 included in the switching-on circuit includes a switching-on relay coil HBJ. The normally open switch in the energy storage switch group 1 included in the closing circuit is a first normally open switch SP1, and the first normally open switch SP1 is connected in series in the closing circuit. Closing spring full-charge energy is a necessary condition for closing the circuit breaker.
The control and monitoring circuit for the energy storage of the breaker spring of the embodiment further comprises a direct current switching-on power supply HM and an energy storage loop which is connected with the direct current switching-on power supply HM and stores the energy of the switching-on spring. The energy storage loop comprises an energy storage change-over switch SA, a normally closed switch in the energy storage switch group 1 and an energy storage motor M. The normally closed switch in the energy storage switch group 1 included in the energy storage loop is a first normally closed switch SP4. The energy storage loop is connected, the energy storage of the closing spring is started, when the closing spring is full of energy, the first normally closed switch SP4 in the energy storage loop is disconnected through the switch toggle mechanism, and the energy storage loop is automatically cut off.
The energy storage state indication circuit may comprise an energy storage position indication circuit connected in parallel with the energy storage circuit. The energy storage position indicating circuit comprises an energy storage position indicating lamp HY and a normally open switch in the energy storage switch group 1. The normally open switch in the energy storage switch group 1 included in the energy storage position indication circuit is a second normally open switch SP5. When the closing spring stores full energy, the second normally open switch SP5 in the energy storage position indicating circuit is closed through the switch toggle mechanism, the energy storage position indicating circuit is connected, and the energy storage position indicating lamp HY is lighted to indicate full energy storage. The energy storage position indicator HY is, for example, a yellow indicator on a panel of a control cabinet door at the upper side of the switch cabinet.
The energy storage state indicating circuit may include an energy storage state display circuit connected in parallel with the closing circuit. The energy storage state display circuit comprises a switch state indicator 3 and a normally open switch in the energy storage switch group 1. The normally open switch in the energy storage switch group 1 included in the energy storage state display circuit is a third normally open switch SP3. The switch state indicator 3 comprises a digital display tube. For example, the digital display tube can display two colors, when the digital display tube presents red, the switching-on spring is in a full energy storage state, and when the digital display tube presents green, the switching-on spring is in an energy storage-free state. When the closing spring stores full energy, the third normally open switch SP3 in the energy storage state display circuit is closed through the switch toggle mechanism, the energy storage state display circuit is connected, and the digital display tube in the switch state indicator 3 is red to indicate full energy storage.
The non-energy-storage switching value signal loop comprises a device in the microcomputer protection measurement and control device 2 and a normally closed switch in the energy storage switch group 1. Further, the microcomputer protection measurement and control device 2 included in the non-energy-storage switching value signal loop includes an indicator lamp LD, communication interfaces S3 and S4, and a resistor R. The normally closed switch in the energy storage switch group 1 included in the non-energy storage switching value signal loop is a second normally closed switch SP2. When the closing spring of the circuit breaker does not store energy or stores energy unsuccessfully, the non-energy-storage switching value signal loop is in a connection state, and an indicator lamp LD in the microcomputer protection measurement and control device 2 is lighted to indicate that the closing spring does not store energy. When the closing spring is full of energy, the second normally closed switch SP2 in the non-energy-storage switching value signal loop is disconnected through the switch toggle mechanism, the non-energy-storage switching value signal loop is cut off, and the indicating lamp LD in the microcomputer protection measurement and control device 2 is turned off. Alternatively or additionally, the microcomputer protection measurement and control device 2 in the non-energy-storage switching value signal loop can detect that the second normally-closed switch SP2 is in a closed state, the non-energy-storage switching value opening signal of the closing spring can be transmitted to the background monitoring microcomputer through the communication interfaces S3 and S4, and an alarm such as sound and/or light alarm of the background monitoring microcomputer reminds an operator of attention, and at the moment, the closing operation of the circuit breaker cannot be performed.
The switching-on circuit, the non-energy-storage switching value signal loop and the energy storage state display circuit are powered by a direct-current control power supply KM. The dc control power KM is, for example, a dc voltage 220V. The energy storage loop and the energy storage position indicating circuit are both powered by a direct current switching-on power supply HM. The dc power HM is, for example, 240V.
The switch toggle mechanism can comprise a small bending plate connected with a crank of the spring energy storage operating mechanism or a cam plate connected with a ratchet wheel. When the closing spring stores full energy, the crank controls the small bending plate or the cam plate to press down each switch in the energy storage switch group 1.
The specific working process of the circuit for controlling and monitoring the energy storage of the breaker spring in the embodiment is as follows:
the energy storage change-over switch SA in the rotary energy storage loop is closed to switch on the energy storage loop, the energy storage motor M starts to store energy for the closing spring, the shaft sleeve is driven by the large turbine in the reduction gearbox, when the pawl enters the notch on the cam, the energy storage shaft is driven to rotate, the closing spring is pulled up to store energy, and when the closing spring is pulled to the highest, the closing spring is locked by the closing pawl, and at the moment, the closing spring stores full energy.
When the closing spring stores full energy, a small connecting rod on a crank of the spring energy storage operating mechanism drives a small bending plate or a cam plate connected with a ratchet wheel to press down each switch in the energy storage switch group 1. The first normally closed switch SP4 in the energy storage loop is opened, cutting off the energy storage motor M. Meanwhile, the second normally open switch SP5 of the energy storage position indicating circuit is closed, the energy storage position indicating circuit is connected, and a yellow energy storage position indicating lamp HY on a cabinet door panel is controlled on the upper side of the switch cabinet to be lighted, so that the closing spring is full of energy. Meanwhile, a third normally open switch SP3 in the energy storage state display circuit is closed, the energy storage state display circuit is connected, a digital display tube in the switch state indicator 3 is red, and the closing spring is in a full energy storage state. Meanwhile, a second normally closed switch SP2 in the non-energy-storage switching value signal loop is disconnected, the non-energy-storage switching value signal loop is cut off, and an indicator light LD on a panel of the microcomputer protection measurement and control device 2 is turned off. Meanwhile, the first normally open switch SP1 in the closing circuit is closed, and preparation is made for the closing operation of the circuit breaker.
When the switching-on control switch 1KK is operated to conduct the switching-on operation of the circuit breaker, the switching-on contact 1 and the switching-on contact 2 of the switching-on control switch 1KK are closed, the switching-on relay coil HBJ is electrified, the switching-on coil HQ is electrified, the contact of the HBJ is self-maintained, and the switching-on operation of the circuit breaker is completed under the action of the operating mechanism.
If the closing spring does not store energy or stores energy unsuccessfully, the second normally closed switch SP2 in the non-energy-storage switching value signal loop is always in a closed state, the non-energy-storage switching value signal loop is in a connected state, and an indicator light LD on a panel of the microcomputer protection measurement and control device 2 is lightened to display that the closing spring does not store energy and gives an alarm. Alternatively or additionally, the microcomputer protection measurement and control device 2 in the non-energy-storage switching value signal loop can detect that the second normally-closed switch SP2 is in a closed state, a switching-on spring non-energy-storage switching value switching-in signal can be transmitted to the background monitoring microcomputer through communication interfaces S3 and S4 of the microcomputer protection measurement and control device 2 in the non-energy-storage switching value signal loop, the background monitoring microcomputer reminds an operator of paying attention in a sound and/or luminous alarm mode, and at the moment, switching-on operation cannot be carried out, or when the switching-on operation is unsuccessful, whether the spring is in a non-energy-storage fault or not can be rapidly determined through checking alarm event information.
The circuit for controlling and monitoring the spring energy storage of the circuit breaker can realize background monitoring and alarming of the faults of the spring energy storage loop and quick searching of the faults of the energy storage loop, and improves the efficiency of searching the faults.
The following is a description of a control and monitoring circuit for spring energy storage of a circuit breaker using the present invention to perform fault finding of a spring energy storage loop, to name a few application examples.
Example 1: alarm fault of' no energy storage of closing spring
Failure phenomenon: after a certain switch cabinet is overhauled, power transmission is prepared, but a background monitoring microcomputer and a microcomputer protection measurement and control device 2 display an alarm that a closing spring does not store energy.
The treatment is as follows: is the spring not stored? The staff looks over the digital display tube in the switch state indicator 3, and the digital display tube presents red, indicates that the spring has stored full energy. Meanwhile, a yellow indicator light for checking the energy storage position is lighted, which also indicates that the spring is fully charged, why an alarm of "the closing spring is not storing energy" will be reported? And checking the microcomputer protection measurement and control device 2 on the switch cabinet door, and resetting the displayed alarm information of 'spring not stored energy', wherein the alarm of 'spring not stored energy' is not returned.
The spring is full, and the alarm information of 'spring not energy storage' can not be recovered, which indicates that the signal loop of the non-energy storage switch has faults. The possible reasons for the analysis are: after the energy storage of the closing spring is completed, the second normally closed switch SP2 in the energy storage switch group 1 should be opened immediately, and may still be closed in practice, and a closing spring non-energy storage switching value opening signal is sent to the microcomputer protection measurement and control device 2 all the time to prompt that the spring is not energy storage. The second normally closed switch SP2 may have been burned out and damaged, and cannot be opened. When the direct-current control power supply KM switch is disconnected, the second normally-closed switches SP2 and SP2 in the energy storage switch group 1 are respectively tested by using the resistance gear of the universal meter when the spring releases energy and the spring stores energy, so that the second normally-closed switches SP2 are uniformly and directly conducted, the damage of the second normally-closed switches SP2 is indicated, the contact cannot be disconnected, the spring non-energy storage switch energy is always connected to a signal loop, and the false alarm information of 'spring non-energy storage' is sent. The second normally closed switch SP2 is replaced with a new one and then returns to normal.
Example 2: "breaker closing circuit" fault
Failure phenomenon: the 110kV transformer substation organization cleans electrical equipment in spring, performs protection linkage verification test on a 10kV breaker 1001, and an operator on duty can not successfully switch on when a background monitor is remotely switched on.
The treatment is as follows: firstly, checking whether the peripheral condition of the closing of the circuit breaker is met or not, checking to find that the spring energy storage motor M works normally, and the energy storage position indicator lamp HY works normally, and not sending out alarm information of 'spring not storing energy'. The method is characterized in that an energy storage loop, an energy storage position indication signal loop and an energy storage-free switching value signal loop are indicated to work normally, a breaker auxiliary normally-closed contact QF in a closing loop of a test breaker is checked to be closed normally, when a first normally-open switch SP1 in an energy storage switch group 1 connected in series in the closing loop is further tested by a resistance gear of a universal meter, the switch is tested to be not conducted, namely the switch fails to be closed in time when a spring stores full energy, and the situation that the switch is possibly in poor contact or damaged is indicated. The connection is removed, the normally open contact is damaged, and the normal operation is recovered after the first normally open switch SP1 is replaced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. The control and monitoring circuit for the energy storage of the breaker spring is characterized by comprising a direct current control power supply (KM), a switching-on circuit connected with the direct current control power supply (KM) for switching on the breaker, a non-energy-storage switching value signal loop connected with the switching-on circuit in parallel, and an energy storage state indicating circuit,
the non-energy-storage switching value signal loop comprises a normally closed switch in the energy storage switch group (1), and before the closing spring stores full energy, the non-energy-storage switching value signal loop is in an on state to indicate that the closing spring does not store energy;
the energy storage state indicating circuit comprises normally open switches in the energy storage switch group (1);
the operating mechanism of the closing spring comprises a switch toggle mechanism, when the closing spring is full of energy, each switch in the energy storage switch group (1) is toggled through the switch toggle mechanism, so that each switch changes state, the energy storage state indicating circuit is connected to indicate that the closing spring is full of energy, and meanwhile, the non-energy storage switching value signal loop is disconnected;
the energy storage circuit is connected with the direct current switching-on power supply (HM) and stores energy for a switching-on spring;
the energy storage loop comprises an energy storage transfer Switch (SA), a normally closed switch in the energy storage switch group (1) and an energy storage motor (M), wherein the normally closed switch is a first normally closed switch (SP 4);
the energy storage state indicating circuit comprises an energy storage position indicating circuit connected with the energy storage loop in parallel;
the energy storage position indication circuit comprises an energy storage position indication lamp (HY) and a normally open switch in the energy storage switch group (1), wherein the normally open switch is a second normally open switch (SP 5);
the energy storage state indicating circuit comprises an energy storage state display circuit connected with the switching-on circuit in parallel;
the energy storage state display circuit comprises a switch state indicator (3) and normally open switches in the energy storage switch group (1), wherein the normally open switches are third normally open switches (SP 3);
the microcomputer protection measurement and control device (2) comprises an indicator Lamp (LD) and communication interfaces (S3 and S4), the normally closed switch is a second normally closed switch (SP 2), when a closing spring of the circuit breaker does not store energy or stores energy unsuccessfully, the indicator Lamp (LD) in the microcomputer protection measurement and control device (2) is in an on state, the indicator Lamp (LD) indicates that the closing spring does not store energy, the second normally closed switch (SP 2) in the non-stored energy switch signal circuit is disconnected through a switch toggle mechanism when the closing spring stores energy, the non-stored energy switch signal circuit is cut off, the indicator Lamp (LD) in the microcomputer protection measurement and control device (2) is in an off state, the microcomputer protection measurement and control device (2) detects that the second normally closed switch (SP 2) is in an on state, the communication interfaces (S3 and S4) transmit the spring non-stored energy to a microcomputer monitoring platform after the microcomputer monitoring platform is opened, and the microcomputer monitoring platform is monitored;
the switch toggle mechanism comprises a small bending plate connected to a crank of the spring energy storage operating mechanism or a cam plate connected with a ratchet, and when the closing spring stores full energy, the crank controls the small bending plate or the cam plate to press down each switch in the energy storage switch group (1).
2. The circuit for controlling and monitoring the energy storage of the circuit breaker spring according to claim 1, characterized in that the switching-on circuit comprises a switching-on control switch (1 KK), a device in a microcomputer protection measurement and control device (2), a normally open switch in an energy storage switch group (1), a circuit breaker auxiliary normally closed contact (QF) and a switching-on coil (HQ), wherein the device in the microcomputer protection measurement and control device (2) comprises a switching-on relay coil (HBJ), and the normally open switch is a first normally open switch (SP 1).
3. The circuit of claim 1, wherein the switch status indicator (3) comprises a digital display tube.
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| CN201810024737.5A CN108054058B (en) | 2018-01-11 | 2018-01-11 | Control monitoring circuit for breaker spring energy storage |
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| CN201810024737.5A CN108054058B (en) | 2018-01-11 | 2018-01-11 | Control monitoring circuit for breaker spring energy storage |
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| CN112431821B (en) * | 2020-11-11 | 2021-10-01 | 中国南方电网有限责任公司超高压输电公司昆明局 | Early warning device for hydraulic disc spring mechanism of high-voltage circuit breaker |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1273320A (en) * | 1970-10-14 | 1972-05-10 | Dennis Dawes Bowen | A first alarm up indication circuit |
| CN201845666U (en) * | 2010-11-10 | 2011-05-25 | 新密市供电公司 | Anti-burnt automatic protecting device of closing coil of breaker spring operation mechanism |
| CN102354635A (en) * | 2011-08-31 | 2012-02-15 | 张明军 | Large-power hydraulic operating mechanism |
| CN203445005U (en) * | 2013-08-26 | 2014-02-19 | 江苏新晨电气有限公司 | Fault breaking mechanism applied to control and protection switch |
| CN204189704U (en) * | 2014-11-30 | 2015-03-04 | 国家电网公司 | A kind of energy storage travel switch |
| CN105305620A (en) * | 2015-10-22 | 2016-02-03 | 山东钢铁股份有限公司 | Disconnection monitoring system of breaker closing control circuit |
| CN105355519A (en) * | 2015-11-30 | 2016-02-24 | 丽水学院 | Intelligent permanent magnet switch drive circuit and control method therefor |
| CN205384994U (en) * | 2015-11-30 | 2016-07-13 | 丽水学院 | Intelligent permanent magnetism switch drive circuit |
| CN205810724U (en) * | 2016-07-15 | 2016-12-14 | 郑州瑞能电气有限公司 | A kind of device of Self Adaptive Control breaker actuation |
| CN205959867U (en) * | 2016-08-16 | 2017-02-15 | 上海舒盈电气有限公司 | Outdoor high pressure spring operation vacuum circuit breaker's control circuit |
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
| CN207800515U (en) * | 2018-01-11 | 2018-08-31 | 山东钢铁股份有限公司 | The control observation circuit of breaker closing spring energy-storage |
-
2018
- 2018-01-11 CN CN201810024737.5A patent/CN108054058B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1273320A (en) * | 1970-10-14 | 1972-05-10 | Dennis Dawes Bowen | A first alarm up indication circuit |
| CN201845666U (en) * | 2010-11-10 | 2011-05-25 | 新密市供电公司 | Anti-burnt automatic protecting device of closing coil of breaker spring operation mechanism |
| CN102354635A (en) * | 2011-08-31 | 2012-02-15 | 张明军 | Large-power hydraulic operating mechanism |
| CN203445005U (en) * | 2013-08-26 | 2014-02-19 | 江苏新晨电气有限公司 | Fault breaking mechanism applied to control and protection switch |
| CN204189704U (en) * | 2014-11-30 | 2015-03-04 | 国家电网公司 | A kind of energy storage travel switch |
| CN105305620A (en) * | 2015-10-22 | 2016-02-03 | 山东钢铁股份有限公司 | Disconnection monitoring system of breaker closing control circuit |
| CN105355519A (en) * | 2015-11-30 | 2016-02-24 | 丽水学院 | Intelligent permanent magnet switch drive circuit and control method therefor |
| CN205384994U (en) * | 2015-11-30 | 2016-07-13 | 丽水学院 | Intelligent permanent magnetism switch drive circuit |
| CN205810724U (en) * | 2016-07-15 | 2016-12-14 | 郑州瑞能电气有限公司 | A kind of device of Self Adaptive Control breaker actuation |
| CN205959867U (en) * | 2016-08-16 | 2017-02-15 | 上海舒盈电气有限公司 | Outdoor high pressure spring operation vacuum circuit breaker's control circuit |
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
| CN207800515U (en) * | 2018-01-11 | 2018-08-31 | 山东钢铁股份有限公司 | The control observation circuit of breaker closing spring energy-storage |
Non-Patent Citations (2)
| Title |
|---|
| 10kV开关储能回路的改进方法;林俊陆;;大众用电(第05期);第22-23页 * |
| 胡孔忠编.《供配电实用技术》.2012,第141页. * |
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