CN223942401U - Anti-jump system of breaker of inflatable cabinet - Google Patents
Anti-jump system of breaker of inflatable cabinetInfo
- Publication number
- CN223942401U CN223942401U CN202520000263.6U CN202520000263U CN223942401U CN 223942401 U CN223942401 U CN 223942401U CN 202520000263 U CN202520000263 U CN 202520000263U CN 223942401 U CN223942401 U CN 223942401U
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- closing
- jump
- circuit breaker
- loop
- point
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Abstract
本实用新型提供了一种充气柜断路器防跳系统，包括合闸回路、防跳回路和微机保护，合闸回路的一端与电源正极连接，另一端与微机保护一端连接，微机保护另一端与电源负极连接；其中，防跳回路一端与合闸回路与电源正极连接一端连接，另一端与微机保护的另一端及电源的负极连接。本实用新型通过调整防跳回路节点，使其独立于合闸回路，其合闸允许节点无法断开防跳回路，保证防跳功能正常运行，提高设备运行时的安全性能。
This invention provides an anti-pumping system for a gas-insulated switchgear circuit breaker, comprising a closing circuit, an anti-pumping circuit, and a microprocessor-based protection system. One end of the closing circuit is connected to the positive terminal of the power supply, and the other end is connected to one end of the microprocessor-based protection system, which in turn is connected to the negative terminal of the power supply. The anti-pumping circuit is connected at one end to the positive terminal of the closing circuit, and at the other end to both the microprocessor-based protection system and the negative terminal of the power supply. By adjusting the anti-pumping circuit's nodes to make it independent of the closing circuit, the closing allowable node cannot disconnect the anti-pumping circuit, ensuring the normal operation of the anti-pumping function and improving the safety performance of the equipment during operation.
Description
Technical Field
The utility model relates to the technical field of electrical control, in particular to an anti-tripping system of a circuit breaker of an inflatable cabinet.
Background
A closing holding relay is arranged in a closing holding loop in an operation box of the current relay protection device, a mechanism anti-tripping relay is arranged in a structure anti-tripping loop in a circuit breaker, the closing holding loop is electrically connected with a closing coil loop, and a complete passage is formed between the closing holding relay and the mechanism anti-tripping relay only so that the circuit breaker can normally close.
Because the design principle of the anti-tripping circuit of the circuit breaker in the original market is adopted and is connected with the switching-on circuit in parallel, the anti-tripping failure phenomenon can occur in the item with the switching-on permission logic hard node in the switching-on circuit, the fault reclosing of the circuit breaker is promoted, and the equipment operation safety and the personal safety are threatened when serious.
Disclosure of utility model
The utility model aims to provide an anti-tripping system of an inflatable cabinet circuit breaker, which is characterized in that by adjusting an anti-tripping loop node, the anti-tripping loop node is independent of a switching-on loop, and the switching-on permission node cannot disconnect the anti-tripping loop, so that normal running of the anti-tripping function is ensured, and the safety performance of equipment in running is improved.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The anti-tripping system of the circuit breaker of the inflatable cabinet comprises a closing loop, an anti-tripping loop and a microcomputer protection, wherein one end of the closing loop is connected with the positive electrode of a power supply, the other end of the closing loop is connected with one end of the microcomputer protection, and the other end of the microcomputer protection is connected with the negative electrode of the power supply;
One end of the anti-jump loop is connected with one end of the closing loop and the positive electrode of the power supply, and the other end of the anti-jump loop is connected with the other end of the microcomputer protection and the negative electrode of the power supply.
Further, the anti-tripping system further comprises a switching-on button 1SB, one end of the switching-on button 1SB is connected with the positive electrode of the power supply, and the other end of the switching-on button 1SB is connected with the switching-on loop and the anti-tripping loop respectively.
Further, in some preferred embodiments, the closing circuit includes a trip prevention relay FT, a breaker split FW, and an energy storage breaker CN, the normally closed contact of the trip prevention relay FT, the breaker split FW, and the energy storage breaker CN are sequentially connected, and the other end of the energy storage breaker CN is connected to one end of the microcomputer protection.
Further, in some preferred embodiments, the anti-jump loop includes an anti-jump coil, a breaker closing HW, the normally open contact of the anti-jump relay FT is connected with one end of the anti-jump coil, the other end of the anti-jump coil is connected with the microcomputer protection and the negative electrode of the power supply, the normally open contact of the anti-jump relay FT is linked with the normally closed contact of the anti-jump relay FT, one end of the breaker closing HW is connected with one end of the normally open and normally closed contact of the anti-jump relay FT, and the other end of the normally open contact of the anti-jump relay FT is connected with the other end of the normally open contact of the anti-jump relay FT and the anti-jump coil.
Compared with the prior art, the utility model has the following beneficial effects:
In actual use, one end of the switching-on loop is connected with the positive electrode of the power supply, the other end of the switching-on loop is connected with one end of the microcomputer protection, the other end of the microcomputer protection is connected with the negative electrode of the power supply, one end of the anti-jump loop is connected with one end of the switching-on loop, which is connected with the positive electrode of the power supply, and the other end of the anti-jump loop is connected with the other end of the microcomputer protection and the negative electrode of the power supply. After the microcomputer switching-on permission point location logic is connected in series by the original market electrical design scheme, the normal function of the anti-tripping relay cannot be ensured, and therefore potential safety hazards of equipment and personnel can be possibly caused. The jump-preventing relay output is optimized, the jump-preventing loop point position is adjusted, the normal function of the jump-preventing relay is ensured, and the safety of equipment operation and maintenance is ensured. According to the utility model, the anti-jump loop node is adjusted to be independent of the switching-on loop, the switching-on permission node cannot disconnect the anti-jump loop, normal operation of the anti-jump function is ensured, and the safety performance of the equipment during operation is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the embodiments, it being understood that the following drawings illustrate only some examples of the utility model and are therefore not to be considered limiting of its scope, since it is possible for a person skilled in the art to obtain other related drawings from these drawings without inventive effort.
Fig. 1 is a state diagram before instantaneous closing before optimization.
Fig. 2 is a state diagram after instantaneous closing before optimization.
Fig. 3 is a state diagram before the circuit breaker is closed when the 1SB closing button is stuck.
Fig. 4 is a state diagram of the circuit breaker after closing when the 1SB closing button is stuck.
Fig. 5 is a state diagram of the circuit breaker when the circuit breaker is closed to a fault and performs protection trip when the 1SB switch-on button is stuck.
Fig. 6 is a state diagram before the instant closing of the 1SB closing button according to the present utility model.
Fig. 7 is a state diagram of the 1SB switch-on button of the present utility model after non-blocking instant switch-on.
Fig. 8 is a state diagram before closing the breaker when the 1SB closing button of the present utility model is stuck.
Fig. 9 is a state diagram of the 1SB switch-on button adhesion circuit breaker after switch-on.
FIG. 10 is a state diagram of the 1SB switch-on button stuck breaker of the present utility model after protection trip due to failure;
fig. 11 is a diagram showing a circuit breaker in a separated state when the circuit breaker is tripped by a fault.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "length", "vertical", "horizontal", "top", "bottom", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or in communication, directly connected, or indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above" and "over" a second feature includes both the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present utility model. Furthermore, embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Example 1
The embodiment discloses an anti-tripping system of an inflatable cabinet circuit breaker, which comprises a switching-on loop, an anti-tripping loop and a microcomputer protection, wherein one end of the switching-on loop is connected with a positive electrode of a power supply, the other end of the switching-on loop is connected with one end of the microcomputer protection, and the other end of the microcomputer protection is connected with a negative electrode of the power supply;
One end of the anti-jump loop is connected with one end of the closing loop and the positive electrode of the power supply, and the other end of the anti-jump loop is connected with the other end of the microcomputer protection and the negative electrode of the power supply.
Further, in this embodiment, the anti-tripping system further includes a switch-on button 1SB, one end of the switch-on button 1SB is connected to the positive electrode of the power supply, and the other end of the switch-on button 1SB is connected to the switch-on circuit and the anti-tripping circuit, respectively.
Further, in this embodiment, the closing circuit includes a trip prevention relay FT, a breaker dividing FW, and an energy storage breaker CN, where a normally closed contact of the trip prevention relay FT, the breaker dividing FW, and the energy storage breaker CN are sequentially connected, and the other end of the energy storage breaker CN is connected to one end of microcomputer protection.
Further, in this embodiment, the anti-jump loop includes an anti-jump coil, a breaker closing HW, the normally open contact of the anti-jump relay FT is connected with one end of the anti-jump coil, the other end of the anti-jump coil is connected with the microcomputer protection and the negative electrode of the power supply, the normally open contact of the anti-jump relay FT is linked with the normally closed contact of the anti-jump relay FT, one end of the breaker closing HW is connected with one end of the normally open and normally closed contact of the anti-jump relay FT, and the other end of the breaker closing HW is connected with the other end of the normally open contact of the anti-jump relay FT and the anti-jump coil.
In actual use, one end of the switching-on loop is connected with the positive electrode of the power supply, the other end of the switching-on loop is connected with one end of the microcomputer protection, the other end of the microcomputer protection is connected with the negative electrode of the power supply, one end of the anti-jump loop is connected with one end of the switching-on loop, which is connected with the positive electrode of the power supply, and the other end of the anti-jump loop is connected with the other end of the microcomputer protection and the negative electrode of the power supply. After the microcomputer switching-on permission point location logic is connected in series by the original market electrical design scheme, the normal function of the anti-tripping relay cannot be ensured, and therefore potential safety hazards of equipment and personnel can be possibly caused. The jump-preventing relay output is optimized, the jump-preventing loop point position is adjusted, the normal function of the jump-preventing relay is ensured, and the safety of equipment operation and maintenance is ensured. According to the utility model, the anti-jump loop node is adjusted to be independent of the switching-on loop, the switching-on permission node cannot disconnect the anti-jump loop, normal operation of the anti-jump function is ensured, and the safety performance of the equipment during operation is improved.
In order to facilitate a further understanding of the utility model by those skilled in the art, the utility model is further described below in connection with specific examples.
Before the optimization:
1. Normal 1:
The 1SB switch-on button is not adhered, and the state before the switch-on of the circuit breaker is shown in fig. 1, and fig. 1 is a state before the transient switch-on before the optimization. At this time, the breaker is at a split FW (closed point), HW (open point) and a spring stored energy CN (closed point), microcomputer protection meets the closing condition (the split of the breaker and the spring stored energy) (closed point), and the instantaneous action 1SB closing button (the instantaneous open point is changed to the closed point and then is restored to the open point) causes the HQ closing coil to be instantly electrified to perform the closing of the breaker.
2. The normal 2:1SB closing button is not adhered, and the breaker is in a state after closing;
Referring to fig. 2, the circuit breaker is at the closing position FW (open point), HW (closed point), the stored energy CN of the spring (open point), and microcomputer protection does not satisfy the closing condition (circuit breaker closing position + stored energy of the spring) (open point).
3. The abnormal 1:1SB closing button is adhered, and the state of the circuit breaker is before closing;
Referring to fig. 3, the fault 1SB closing button adhesion state (closing point) is that the circuit breaker is at a split FW (closing point), HW (opening point), and spring stored energy CN (closing point), microcomputer protection meets closing conditions (circuit breaker split+spring stored energy) (closing point), and the HQ closing coil is powered on to close the circuit breaker due to the 1SB closing button adhesion state (closing point).
4. The abnormal 2:1SB closing button is adhered, and the state of the circuit breaker is after closing;
Referring to fig. 4, the fault 1SB closing button is in an stuck state (closing point) in which the circuit breaker is at the closing position FW (opening point), HW (closing point), and the spring is not storing energy CN (opening point), and microcomputer protection does not satisfy the closing condition (circuit breaker closing position + spring is not storing energy) (opening point).
5. After the abnormal 3,1SB closing button is adhered and the breaker is closed, after CN energy storage is completed, the breaker is closed to a fault to perform protection tripping;
Referring to fig. 5, the fault 1SB closing button is in an stuck state (closing point) in which the circuit breaker is at a breaking position FW (closing point), HW (opening point), and a spring stored energy CN (closing point), and microcomputer protection satisfies a closing condition (breaking position of the circuit breaker+stored energy of the spring) (closing point) to close the circuit breaker again. Because the FT relay in the whole abnormality 1-3 is not electrified, the jump failure is prevented, the circuit breaker repeats the abnormality 1-3, and the circuit breaker is separated and combined for unlimited times, so that the running safety and personal safety of equipment are threatened.
After the optimization is carried out by adopting the application:
1. Normally 1:1SB closing buttons are not adhered, and the state of the circuit breaker is before closing;
The design of the electric principle is optimized and changed, the anti-jump loop node is adjusted to be independent of the closing loop, the microcomputer protection closing allowing node can not break the anti-jump loop, and normal operation of the anti-jump function is ensured.
Referring to fig. 6, in fig. 6, the state before instantaneous closing is that the circuit breaker is at the split FW (closing point), HW (opening point), and the spring stored energy CN (closing point), microcomputer protection satisfies the closing condition (circuit breaker split+spring stored energy) (closing point), and the instantaneous operation 1SB closing button (after the instantaneous opening point is changed to the closing point, the opening point is restored), so that the HQ closing coil is instantaneously electrified to perform circuit breaker closing.
2. The normal 2:1SB closing button is not adhered, and the breaker is in a state after closing;
Referring to fig. 7, in the state after the instantaneous closing, the circuit breaker is at the closing position FW (open point), HW (closed point), and the stored energy CN (open point), and the microcomputer protection does not meet the closing condition (the closing position of the circuit breaker+the stored energy of the spring) (open point).
3. Abnormal 1:1SB closing button adhesion, state before closing of the breaker
Referring to fig. 8, the fault 1SB closing button adhesion state (closing point) is that the circuit breaker is at the split FW (closing point), HW (opening point), and spring stored energy CN (closing point), microcomputer protection meets the closing condition (circuit breaker split+spring stored energy) (closing point), and the HQ closing coil is powered on to close the circuit breaker due to the 1SB closing button adhesion state (closing point).
4. The abnormal 2:1SB closing button is adhered, and the state of the circuit breaker is after closing;
referring to fig. 9, in the fault 1SB switch-on button adhesion state (switch-on point), the circuit breaker is at switch-on position FW (switch-on point), HW (switch-on point), and the spring is not storing energy CN (switch-on point), and microcomputer protection does not satisfy switch-on conditions (circuit breaker switch-on position + spring is not storing energy) (switch-on point).
5. After the abnormal 3:1SB closing button is adhered and the breaker is closed, the spring stores energy, and the FT relay is powered through the 1SB closing button (closing point) and the breaker closing position (closing point).
Referring to fig. 10, the circuit breaker is in a closing position FW (open point), HW (closed point) and spring energy storage CN (closed point) in a fault 1SB closing button adhesion state (closed point), microcomputer protection does not meet closing conditions (circuit breaker closing position+spring energy storage) (open point), the anti-tripping circuit FT open point becomes closed point, the closing circuit FT closed point becomes open point, the closing circuit is disconnected, the HQ closing coil is not powered, and the anti-tripping function is started and self-maintained.
6. After the abnormal 4:1SB closing button is adhered and the breaker is closed, the spring stores energy, and the FT relay is electrified through the 1SB closing button (closing point) and the closing position (closing point) of the breaker, so that the jump-proof loop is started. At this time, the breaker is closed to the fault, and the tripping action is performed, and the breaker is in the separated position.
Referring to fig. 11, the fault 1SB closing button adhesion state (closing point) is that the circuit breaker is at a split FW (closing point), HW (opening point), and spring energy storage CN (closing point), microcomputer protection meets closing conditions (circuit breaker split + spring energy storage) (closing point), and the trip prevention circuit FT opening point becomes closing point, the closing circuit FT closing point becomes opening point, the closing circuit is disconnected, the HQ closing coil is not powered, and the trip prevention function is started and self-maintained.
As described above, in the present utility model, after the microcomputer switch-on allows the point logic to be connected in series, the normal function of the anti-tripping relay cannot be ensured, so that the potential safety hazards of equipment and personnel may be caused. The jump-preventing relay output is optimized, the jump-preventing loop point position is adjusted, the normal function of the jump-preventing relay is ensured, and the safety of equipment operation and maintenance is ensured.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (4)
1. The anti-tripping system of the circuit breaker of the inflatable cabinet comprises a closing loop, an anti-tripping loop and a microcomputer protection, and is characterized in that one end of the closing loop is connected with a positive electrode of a power supply, the other end of the closing loop is connected with one end of the microcomputer protection, and the other end of the microcomputer protection is connected with a negative electrode of the power supply;
One end of the anti-jump loop is connected with one end of the closing loop and the positive electrode of the power supply, and the other end of the anti-jump loop is connected with the other end of the microcomputer protection and the negative electrode of the power supply.
2. The anti-tripping system of the circuit breaker of the inflatable cabinet according to claim 1, wherein the anti-tripping system further comprises a closing button 1SB, one end of the closing button 1SB is connected with a positive electrode of a power supply, and the other end of the closing button 1SB is respectively connected with a closing loop and an anti-tripping loop.
3. The anti-tripping system of the gas-filled cabinet circuit breaker according to claim 1, wherein the switching-on loop comprises an anti-tripping relay FT, a circuit breaker dividing FW and an energy storage circuit breaker CN, the normally closed contact of the anti-tripping relay FT, the circuit breaker dividing FW and the energy storage circuit breaker CN are sequentially connected, and the other end of the energy storage circuit breaker CN is connected with one end of the microcomputer protection.
4. The anti-jump system of the gas-filled cabinet circuit breaker according to claim 3, wherein the anti-jump loop comprises an anti-jump coil and a circuit breaker closing HW, the normally open contact of the anti-jump relay FT is connected with one end of the anti-jump coil, the other end of the anti-jump coil is connected with a microcomputer protection and power supply negative electrode, the normally open contact of the anti-jump relay FT is linked with the normally closed contact of the anti-jump relay FT, one end of the circuit breaker closing HW is connected with one ends of the normally open and normally closed contacts of the anti-jump relay FT, and the other end of the circuit breaker closing HW is connected with the other end of the normally open contact of the anti-jump relay FT and the anti-jump coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520000263.6U CN223942401U (en) | 2025-01-02 | 2025-01-02 | Anti-jump system of breaker of inflatable cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520000263.6U CN223942401U (en) | 2025-01-02 | 2025-01-02 | Anti-jump system of breaker of inflatable cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223942401U true CN223942401U (en) | 2026-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520000263.6U Active CN223942401U (en) | 2025-01-02 | 2025-01-02 | Anti-jump system of breaker of inflatable cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223942401U (en) |
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2025
- 2025-01-02 CN CN202520000263.6U patent/CN223942401U/en active Active
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