CN216670198U - Simulation circuit breaker for electrical test - Google Patents
Simulation circuit breaker for electrical test Download PDFInfo
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- CN216670198U CN216670198U CN202122414663.6U CN202122414663U CN216670198U CN 216670198 U CN216670198 U CN 216670198U CN 202122414663 U CN202122414663 U CN 202122414663U CN 216670198 U CN216670198 U CN 216670198U
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Abstract
The utility model discloses a simulation circuit breaker for an electrical test, which comprises a panel and a control circuit arranged in the panel, wherein the control circuit comprises a plurality of switch control loops, the switch control loops are connected with a power supply KM through test leads, the switch control loops comprise switch circuits and indication circuits, the switch circuits and the indication circuits are connected in parallel, the switch circuits comprise a closing button HA, a lead leading plug XP and a tripping button FA, which are connected in parallel, and the indication circuits comprise a green light indication loop and a red light indication loop, which are connected in parallel. The utility model solves the contradiction that the on-off is not required to be frequent, the comprehensive test is not carefree when the detection is carried out, and the on-off measurement needs to be carried out for multiple times, and the simulated circuit breaker is used for replacing the on-off of the electrical switch through the electrical secondary test, thereby prolonging the service life of the electrical equipment, ensuring the integrity of the electrical secondary test and improving the reliability of the electrical equipment with extremely low cost.
Description
Technical Field
The utility model relates to the technical field of electrical equipment, in particular to a simulation circuit breaker for an electrical test.
Background
The power switch of the electrical equipment of the power generation enterprise realizes the remote, local and protection of the equipment and the control of interlocking action and tripping by an electrical secondary control loop, and the reliability of the operation of the control loop is an important guarantee for ensuring the safe and stable operation of the electrical primary equipment. Regular inspection and verification need to be carried out on the power switch of the electrical primary equipment, and similarly, loop cleaning and fastening need to be carried out on the electrical secondary control loop, and a test of control logic is carried out to verify the integrity of the loop. In actual maintenance, when a logic inspection test of an electrical power switch is carried out, the number of times of control logic test inspection carried out on the electrical power switch is limited due to one-time equipment maintenance, on one hand, the service life of the equipment is influenced by the repeated starting and stopping of the power switch, on the other hand, the test is limited by factors such as equipment maintenance modes, construction periods, field operation safety coordination and the like, and excessive tests carried out on the electrical power switch are not allowed. Meanwhile, due to the rapidity of the action of the actual power switch, the feedback of the input switching value signal analog switch on and off becomes an impossible task. Therefore, how to adopt an analog device to replace a power switch to perform an electrical control loop test is a technical problem which needs to be solved urgently to ensure the convenience and rapidness of the test.
Chinese utility model with application number CN201620355263.9 discloses a convenient circuit breaker intelligent controller who detects, including power supply circuit, current-voltage detection circuit, analog signal processing circuit, logic control circuit, dropout executive circuit, keyboard, LCD screen, data communication circuit, temperature detection circuit, first analog switch, second analog switch, remote control receiving circuit and analog signal generation circuit. The first analog switch is coupled between the current and voltage detection circuit and the analog signal conditioning circuit; the second analog switch is coupled between the logic control circuit and the tripping execution circuit; the remote control receiving circuit is used for receiving a remote control signal from the outside and forwarding the remote control signal to the logic control circuit; the logic control circuit responds to the remote control signal, controls the first analog switch and the second analog switch to be in a disconnected state or a started state, and sends corresponding switch signals to the analog signal generating circuit; the logic control circuit receives the temperature detection signal, compares the temperature detection signal with a preset value, and outputs an alarm signal according to a comparison result. The utility model discloses a circuit breaker intelligent control ware of convenient detection to the mode substitute power's of simulation switch does not have for the measurement of electrical data.
The Chinese invention with the application number of CN201610263565.8 discloses an intelligent controller of a circuit breaker and a real-time detection method based on the intelligent controller. The purpose is in order to realize that the staff only need to use the mode of punching the card at the in-process of patrolling and examining, start intelligent control ware's self-checking function can. Meanwhile, the fault working condition in the power supply line is simulated, so that the intelligent controller can be detected from beginning to end, the omission is reduced as much as possible, and the detection result is comprehensive. The device disclosed by the utility model is mainly used for realizing the self-detection of the intelligent controller of the circuit breaker, and the quick measurement of electrical data is realized by replacing a switch of a power supply with an analog method instead of using the analog method.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a simulation circuit breaker for an electrical test, which aims to solve the technical problem that the existing electrical switch designed to be registered at high voltage is inconvenient in control loop switching logic test.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides an electric experimental simulation circuit breaker, includes the panel and sets up control circuit in the panel, control circuit includes a plurality of switch control return circuits, switch control return circuit is connected with power KM through the test wire, switch control return circuit includes mutual parallel connection's switch circuit and indicating circuit, switch circuit includes closing button HA, wire that are connected in parallel each other and draws and connect plug XP and trip button FA, indicating circuit includes green lamp indicating circuit and red lamp indicating circuit that are connected in parallel each other.
Specifically, a direct current air break switch ZKK is arranged on the test lead.
Specifically, the switch circuit further includes a double-position relay SWJ, and the double-position relay SWJ is connected in series with the closing button HA and the trip button FA, respectively.
Specifically, the green light indicating circuit comprises a two-position relay SWJ2, a trip indicating lamp LD and a resistor R1 which are connected in series with each other.
Specifically, the red light indicating loop envelopes a double-position relay SWJ1, a closing indicating lamp HD and a resistor R2 which are connected in series.
Specifically, the control circuit includes three switch control loops: a switch control loop A, a switch control loop B and a switch control loop C.
The utility model has the beneficial effects that: the problem of inconvenience of a control loop switching logic test of the high-voltage-level electrical switch is solved, the on-off is not required to be frequent, comprehensive test is not omitted when detection is carried out, and multiple on-off measurement conflicts are required.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a control schematic of the present invention;
fig. 2 is a panel layout diagram.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper" and "lower" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Example 1:
referring to fig. 1-2, a simulated circuit breaker for electrical test comprises a panel and a control circuit arranged in the panel, wherein the control circuit comprises a plurality of switch control loops, the switch control loops are connected with a power supply KM through a test lead, the switch control loops comprise switch circuits and indication circuits which are connected in parallel, the switch circuits comprise a closing button HA, a lead connecting plug XP and a tripping button FA which are connected in parallel, the lead connecting plug XP is used for connecting an external test lead, and the indication circuits comprise a green light indication loop and a red light indication loop which are connected in parallel.
Further, in this embodiment, the wire leading plug XP includes a common terminal (+), a closing terminal and a tripping terminal.
Further, in this embodiment, a dc off switch ZKK is disposed on the test wire.
Further, in this embodiment, the switch circuit further includes a two-position relay SWJ, and the two-position relay SWJ is connected in series with the closing button HA and the trip button FA, respectively.
Further, in the present embodiment, the green light indicating circuit includes a two-position relay SWJ2, a trip indicating lamp LD, and a resistor R1, which are connected in series with each other.
Further, in the present embodiment, the red light indicating circuit envelopes the two-position relay SWJ1, the closing indicator HD and the resistor R2 which are connected in series with each other.
Further, in the embodiment, the type of the closing button HA is LA18-20, the type of the tripping button FA is LA18-20, the type of the tripping indicator lamp LD is AD11-25/20, the type of the closing indicator lamp HD is AD11-25/20, the resistances of the resistor R1 and the resistor R2 are 1.2 kiloohms and ZG11-25, the type of the two-position relay SWJ is DLS-5/3, and the type of the DC air break switch ZKK is S202MC4-DC110V 2P.
Further, in this embodiment, the control circuit includes three switch control loops: a switch control loop A, a switch control loop B and a switch control loop C. Specifically, the switch control loop A comprises a closing button HAALead wire connecting plug XPATrip button FAADouble-position relay SWJADouble-position relay SWJA1Double-position relay SWJA2Trip indicator lamp LDAResistance RA1Closing indicating lamp HDAAnd a resistance RA2(ii) a The switch control loop B comprises a closing button HABLead wire connecting plug XPBTrip button FABDouble-position relay SWJBDouble-position relay SWJB1Double-position relay SWJB2Trip indicator lamp LDBResistance RB1Closing indicating lamp HDBAnd a resistance RB2(ii) a The switch control loop C comprises a closing button HACLead wire connecting plug XPCTrip button FACDouble-position relay SWJCDouble-position relay SWJC1Double-position relay SWJC2Trip indicator lamp LDCResistance RC1Closing indicating lamp HDCAnd a resistance RC2. It should be noted that the switch control circuit B and the switch control circuit C are both the same as the switch control circuit a, and the complete switch control circuit B and the complete switch control circuit C are not labeled in fig. 1.
Furthermore, in this embodiment, the panel is provided with a plurality of jacks for connecting the wires to the XP plug, for externally connecting the test wires; a plurality of normally closed and normally open node ports of the double-position relay SWJ are also arranged; a direct current idle disconnection switch ZKK port is also arranged; a plurality of indicator lights and button ports are also provided.
In order to ensure the normal supply of the factory power supply, a production enterprise can adopt a standby power supply automatic switching device, and after the working power supply is disconnected due to faults, the standby power supply can be automatically and rapidly switched into work or a user can be switched to the standby power supply. The simulation circuit breaker provided by the utility model simulates a working power supply and a standby power supply switch on site, and is introduced into the opening-in and opening-out ports of the automatic standby power supply switching device to periodically check and verify the correctness of the action logic of the automatic standby power supply switching device so as to ensure the reliable operation of equipment.
The operation of the utility model is as follows:
an external 110V direct current is used as a working power supply, and all externally connected contacts are required to be passive loops; a direct current 110V power supply is led in from the outside through a test lead, and the direct current power supply is supplied to the simulation circuit breaker device after the direct current air break switch ZKK is closed; wire leading plug XPAThe connection plugs of the public end (+), the closing end and the tripping end are led to a passive open contact loop of a switching-on working power supply and a tripping working power supply of the standby power supply automatic switching device through test wires; wire leading plug XPBThe connection plugs of the public end (+), the closing end and the tripping end are led to a passive open contact loop of a switching-on working power supply and a tripping working power supply of the standby power supply automatic switching device through test wires; double-position relay SWJA1And a two-position relay SWJA2The wiring plug is led to a 'working power supply switching-on' and 'working power supply tripping' switching-on contact loop of the standby power supply automatic switching device through a test lead and is used as the switching-on and switching-off quantity of a working power supply in the standby power supply automatic switching device; double-position relay SWJB1And a two-position relay SWJB2The connecting plug is led to a 'working power supply switching-on' and 'working power supply tripping' switching-on contact loop of the standby power supply automatic switching device through a test lead to be used as the switching-in quantity of a working power supply switching state in the standby power supply automatic switching device; when the standby power supply automatic switching device relates to the switching of three circuit breakers, a switching-on end C and a tripping end C of the analog circuit breaker can be switched, and the double-position relay SWJC1And a two-position relay SWJC2The connection plug is connected into the device in a mode of a switch control loop A and a switch control loop B; simulating a closing button HA, a tripping button FA, a tripping indicator lamp LD and a closing indicator lamp HD of the circuit breaker, wherein the simulating is equal to the manual closing, tripping and finger elements of a working power supply and a standby power supply switch; after the wiring is completed, the standby power source automatic switching device is subjected to power source switching logic test according to a conventional test mode, so that the replacement of an actual switch by a simulated circuit breaker is realized.
The utility model can be installed in a metal aluminum alloy suitcase with the length, width and height of 50cm x 40cm, and all the elements required by the utility model are fixedly installed on an insulating epoxy resin plate and are fixed on the aluminum alloyThe internal wiring schematic diagram of the components in the suitcase is shown in figure 1 and is 1.5mm2The multi-strand insulated wire of fig. 1 is used to connect the components together.
This patent has solved the inconvenience that the electric switch of high voltage class carries out control circuit switching logic test. On one hand, the on-off times of the high-voltage switch affect the service life of the switch and the safety of operation, the voltage level is high, the number of switch operation processes and matching personnel is large, and the whole group of tests are not suitable to be frequently carried out; on the other hand, the electrical secondary circuit switch, the automatic switching and the protection action have multiple logic circuits, the loss of any item influences the safe operation of the electrical equipment, the comprehensive test is required to be carried out without carelessness, and the switch is bound to be turned on and off for many times. The contradiction of one less and one more is effectively solved by the analog circuit breaker for the electrical secondary test developed by the secondary patent. The service life of the electrical primary equipment is prolonged, and the integrity of the electrical secondary test is ensured. The manufacturing investment is made at an extremely low patent cost, the daily maintenance fund of the equipment is reduced, the reliability of the electrical equipment is improved, and the operation test intensity of electrical secondary professionals is improved.
The utility model has the advantages of low input cost, small device volume, convenient field carrying and convenient operation, and is suitable for all the electrical secondary tests related to the interlocking start and stop of a plurality of power switches. Because the control circuit of the existing switch generally adopts a 110V direct-current power supply, the rated voltage of the components for manufacturing the simulation circuit breaker adopts 110V direct current, the circuit is tested by a 1000V withstand voltage test, the insulation is qualified and safe, the device is used for many years in professional development of equipment regular inspection, the quality is reliable, and no circuit fault caused by aging of any component occurs. The use of the utility model saves a large amount of capital for enterprises and lightens the working intensity of electrical secondary professionals.
The utility model relates to a power supply switching logic test of a 6kV bus working power supply incoming line switch and a standby power supply incoming line switch in a test of a field 6kV quick switching device, wherein elements such as a double-position relay simulation power supply switch, a start-stop button, a red-green indicating lamp, a relay secondary wiring terminal and the like which are commonly used in the electrical secondary industry are integrated in a small aluminum metal suitcase, and the polarity of a power supply which needs to be externally connected and introduced is clearly identified to manufacture a simulation circuit breaker for the electrical secondary test. This equipment adopts common electric quadratic element, and purchasing cost is low, and the device is small, and on-the-spot convenient to carry, the simple operation has developed the equipment and has examined the application for many years in the specialty, and the effect is very good, is worth promoting.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. In the description of the present invention, it is to be understood that the terms "upper", "left", "right", and the like, which represent the orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "connected" and "disposed" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "connected" or "provided" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "connected," "disposed," and the like 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 is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein.
It should be noted that the above-mentioned preferred embodiments are only illustrative and should not be construed as limiting the scope of the utility model, and that modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. The utility model provides an electric experimental simulation circuit breaker, its characterized in that includes the panel and sets up control circuit in the panel, control circuit includes a plurality of switch control return circuits, switch control return circuit is connected with power KM through the test wire, and switch control return circuit includes mutual parallel connection's switch circuit and indicating circuit, switch circuit includes closing button HA, wire connection plug XP and trip button FA that connect in parallel each other, indicating circuit includes green lamp indicating circuit and the red lamp indicating circuit that connect in parallel each other.
2. The circuit breaker of claim 1, wherein the test conductor is provided with a dc disconnection switch ZKK.
3. The analog circuit breaker for electrical tests as set forth in claim 1, wherein said switching circuit further comprises a two-position relay SWJ connected in series with a closing button HA and a trip button FA, respectively.
4. The analog circuit breaker for electric test as claimed in claim 1, wherein the green light indicating circuit comprises a two-position relay SWJ2, a trip indicating lamp LD and a resistor R1 connected in series with each other.
5. The analog circuit breaker for electrical test of claim 1, wherein the red light indicating circuit envelopes the two-position relay SWJ1, the closing indicating lamp HD and the resistor R2 which are connected in series with each other.
6. The analog circuit breaker for electrical testing of claim 1, wherein said control circuit comprises three switch control loops: a switch control loop A, a switch control loop B and a switch control loop C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122414663.6U CN216670198U (en) | 2021-10-08 | 2021-10-08 | Simulation circuit breaker for electrical test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122414663.6U CN216670198U (en) | 2021-10-08 | 2021-10-08 | Simulation circuit breaker for electrical test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216670198U true CN216670198U (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122414663.6U Active CN216670198U (en) | 2021-10-08 | 2021-10-08 | Simulation circuit breaker for electrical test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216670198U (en) |
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2021
- 2021-10-08 CN CN202122414663.6U patent/CN216670198U/en active Active
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