CN215953790U - Extremely simple and easy simulation circuit breaker circuit - Google Patents
Extremely simple and easy simulation circuit breaker circuit Download PDFInfo
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- CN215953790U CN215953790U CN202121951754.7U CN202121951754U CN215953790U CN 215953790 U CN215953790 U CN 215953790U CN 202121951754 U CN202121951754 U CN 202121951754U CN 215953790 U CN215953790 U CN 215953790U
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- closing control
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Abstract
The utility model discloses a very simple circuit for simulating a circuit breaker, and relates to the technical field of circuit breakers. The closing control relay and the opening control relay are double C-shaped contact relays; a coil end 14 and a coil end 13 of the switching-on control relay are respectively connected with a negative terminal CN & lt- & gt of the direct-current power supply and a switching-on control input signal Hz +, and a terminal 9, a terminal 5 and a terminal 4 of the switching-on control relay are respectively connected with a positive signal CN & lt- & gt, a terminal 12 and a switching-off control input signal Fz & lt + & gt of the energy storage power supply; the coil end 14 and the coil end 13 of the opening control relay are respectively connected with the negative terminal CN & lt- & gt of the direct current power supply and the opening control input signal Fz & lt- & gt, and the end terminal 9 and the end terminal 1 of the opening control relay are respectively connected with the end terminal 5 & lt- & gt of the closing control relay and the closing control input signal Hz & lt + & gt. The utility model has perfect functions, small volume and convenient carrying, is suitable for the maintenance of field terminals or the test work in the field of terminal production detection, and improves the production and test simplicity.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a very simple circuit for simulating a circuit of a circuit breaker.
Background
In recent years, in rural power grid transformation promoted by the state, particularly in the application field of power distribution terminals, aiming at the simulated circuit breaker for protecting an action outlet, a traditional secondary equipment manufacturer generally uses a special simulated circuit breaker for testing, although the function is excellent, the volume or the weight is larger, and portable test verification is difficult to realize; when field debugging is met, particularly under the condition that the software test of a hanging rod terminal needs to verify the switching-on and switching-off logic, the special simulation circuit breaker is verified with a field electric pole, and the special simulation circuit breaker is quite troublesome and laborious. In order to solve the above problems, it is particularly necessary to design a novel very simple analog circuit breaker circuit.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide an extremely simple analog circuit breaker circuit which is simple in structure, reasonable in design, small in size, convenient to carry, complete in function, suitable for field terminal maintenance or test work in the field of terminal production detection, strong in practicability and easy to popularize and use.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a very simple simulation circuit breaker circuit comprises a closing control relay and an opening control relay, wherein the closing control relay and the opening control relay are double C-shaped contact relays; the coil end 14 of the closing control relay is connected with the negative end CN < - >, the coil end 13 of the closing control relay is connected with a closing control input signal Hz < + >, the end joint 9-5 of the closing control relay is a normally open joint, the 12-4 of the closing control relay is a normally closed joint, the end joint 9 of the closing control relay is connected with an energy storage power supply positive signal CN < + >, the end joint 5 of the closing control relay is connected with the end joint 12, and the end joint 4 of the closing control relay is connected with an opening control input signal Fz < + >; a coil end 14 of the opening control relay is connected with a negative end CN of a direct current power supply, a coil end 13 of the opening control relay is connected with an opening control input signal Fz +, end joints 9-5 of the opening control relay are normally open contacts, end joints 9-1 of the opening control relay are normally closed contacts, wherein the end joints 9 of the opening control relay are connected with end joints 5 of the closing control relay, the end joints 5 of the opening control relay are connected with a positive signal CN of the energy storage power supply, and the end joints 1 of the opening control relay are connected with a closing control input signal Hz +; the end joints 12-4 and 12-8 of the opening control relay form a state signal output joint of the analog circuit breaker, wherein the end joint 12-4 of the opening control relay is a normally closed joint and used as a closing signal output indication, and the end joint 12-8 of the opening control relay is a normally open joint and used as an opening signal output indication.
Preferably, the topology of the closing control relay is two groups of independent C-shaped contacts, the end contact 9-5 of the closing control relay is connected in series to the positive loop of the energy storage power supply, the end contact 12-4 of the closing control relay is connected in series to the opening maintaining loop, and the coil of the closing control relay is driven by a direct current signal.
Preferably, the topology of the opening control relay is two groups of independent C-shaped contacts, the end contact 9-5 of the opening control relay is connected in series to the positive loop of the energy storage power supply, the end contact 9-1 of the opening control relay is connected in series to the closing maintaining loop, and the coil of the opening control relay is driven by a direct current signal.
The utility model has the beneficial effects that: the circuit is reasonably built by adopting minimum discrete devices, only comprises two double-C-shaped contact relays, has the basic function of simulating the opening and closing of the circuit breaker, realizes the function of protecting the opening and closing action, has perfect functions, small volume and convenient carrying, is suitable for the test work in the field of field terminal maintenance or terminal production detection, improves the production and test simplicity and has wide application prospect.
Drawings
The utility model is described in detail below with reference to the drawings and the detailed description;
fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
Referring to fig. 1, the following technical solutions are adopted in the present embodiment: the utility model provides an extremely simple and easy simulation circuit breaker circuit, includes two direct current relays, closes a floodgate control relay JD1 and separating brake control relay JD2 promptly, and closing a floodgate control relay JD1, separating brake control relay JD2 are two C type contact relays, specifically:
the topology of the switching-on control relay JD1 is two groups of independent C-type contacts, the coil of the switching-on control relay JD1 is driven by a direct current signal, the coil end point 14 of the switching-on control relay JD1 is connected with the negative end CN-of a direct current power supply, and the coil end point 13 of the switching-on control relay JD1 is connected with a switching-on control input signal Hz +; the end joint 9-5 of the switching-on control relay JD1 is a normally open joint, the end joint 9-5 of the switching-on control relay JD1 is connected in series to the positive loop of the energy storage power supply, the end joint 12-4 of the switching-on control relay JD1 is a normally closed joint, the end joint 12-4 of the switching-on control relay JD1 is connected in series to the tripping holding loop, wherein the end joint 9 of the switching-on control relay JD1 is connected into the positive signal CN + of the energy storage power supply, the end joint 5 of the switching-on control relay JD1 is connected with the end joint 12, and the end joint 4 of the switching-on control relay JD1 is connected with the tripping control input signal Fz +;
the topology of the opening control relay JD2 is two groups of independent C-shaped contacts, the coil of the opening control relay JD2 is driven by a direct current signal, the coil end 14 of the opening control relay JD2 is connected with the negative end CN of the direct current power supply, the coil end 13 of the opening control relay JD2 is connected with the opening control input signal Fz +, the end contact 9-5 of the opening control relay JD2 is a normally open contact, the end contact 9-1 is a normally closed contact, the end contact 9-5 of the opening control relay JD2 is connected in series in the positive loop of the energy storage power supply, the end point 9-1 of the opening control relay JD2 is connected in series in the closing holding loop, the terminal 9 of the switching-off control relay JD2 is connected with the terminal 5 of the switching-on control relay JD1, the terminal 5 of the switching-off control relay JD2 is connected with the positive signal CN + of the energy storage power supply, and the terminal 1 of the switching-off control relay JD2 is connected with the switching-on control input signal Hz +; the end contacts 12-4 and 12-8 of the opening control relay JD2 form a state signal output contact of the analog circuit breaker, wherein the end contact 12-4 of the opening control relay JD2 is a normally closed contact and is used as a closing signal output indication, and the end contact 12-8 of the opening control relay JD2 is a normally open contact and is used as an opening signal output indication.
The working principle of the specific embodiment is as follows: (1) when the operation loop is in the energy storage state, namely CN + \ CN-is a direct current power supply, if the secondary equipment terminal sends a closing command Hz +, the coil of the closing control relay JD1 is electrified, the contact of the closing control relay JD1 acts, the normally closed contact 12-4 is opened, the normally open contact 9-5 is closed, and the CN + direct current power supply feeds back to a closing control input signal Hz + through the end contact 9-5 of the closing control relay JD1 to the normally closed contact 9-1 of the opening control relay JD2, therefore, even if the closing outlet of the secondary terminal equipment is reset after pulsation at the moment, the positive signal CN + of the energy storage power supply can also be fed back to a closing control input signal Hz + through an internal loop, a closing control relay JD1 is in a holding state, the on-state can be indicated by using the terminal 12-driven LED indicator lamp of the opening control relay JD 2.
(2) When the operation loop is in the energy storage state, namely CN + \ CN < - > is a direct current power supply, if the secondary equipment terminal sends out a switching-off command Fz < + >, the coil of the switching-off control relay JD2 is electrified, the contact of the switching-off control relay JD2 acts, the normally closed contact 9-1 is opened, the switching-on control relay JD1 is reset, the normally open contact 9-5 of the switching-off control relay JD2 is closed, the CN < + > direct current power supply passes through the end contact 9-5 of the switching-off control relay JD2 to the end contact 12-4 of the switching-on control relay JD1 and feeds back to the switching-off control input signal Fz < + >, therefore, even if the secondary terminal equipment is reset after switching-off outlet pulsation, the positive energy storage power supply signal CN < + > can also pass through the internal loop to the switching-off control input signal Fz < + >, the switching-off control relay JD2 can be in the holding state, and the end contact 12-8 of the switching-off control relay JD2 can drive the LED indicator lamp, indicating its split state.
The embodiment realizes the necessary functions of the simulation circuit breaker by the least split components, has perfect functions, simple and flexible circuit structure, skillful internal connection, minimized split components, small and exquisite molded fracture size, convenient carrying, no parameter calculation, reliable simulation and realization of the functions of protecting the opening and closing actions, the simple circuit of the simulation circuit breaker with the switching-on and switching-off functions is completely suitable for the maintenance of field terminals or the test work in the field of terminal production detection, can be used for the functional verification of the action characteristics of the switching-on and switching-off outlets of secondary equipment in an electric power system, especially, the verification work aiming at the correctness of the protection action of the terminal equipment meets the requirement of providing a necessary and reliable test scheme for the production verification of the national power grid basic equipment, the production, test simplicity and test efficiency of the secondary terminal equipment can be obviously improved, the field terminal maintenance is convenient, and the method has wide market application prospect.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. The circuit of the extremely simple analog circuit breaker is characterized by comprising a closing control relay (JD1) and an opening control relay (JD2), wherein the closing control relay (JD1) and the opening control relay (JD2) are double-C type contact relays; a coil end point 14 of the closing control relay (JD1) is connected to a negative end CN & lt- & gt of a direct current power supply, a coil end point 13 of the closing control relay (JD1) is connected to a closing control input signal Hz & lt- & gt, end points 9-5 of the closing control relay (JD1) are normally open contacts, 12-4 of the closing control relay (JD1) are normally closed contacts, wherein an end point 9 of the closing control relay (JD1) is connected to a positive signal CN & lt- & gt of an energy storage power supply, an end point 5 of the closing control relay (JD1) is connected with the end point 12, and an end point 4 of the closing control relay (JD1) is connected with a switching-off control input signal Fz & lt- & gt;
a coil end point 14 of the switching-off control relay (JD2) is connected with a negative end CN of a direct-current power supply, a coil end point 13 of the switching-off control relay (JD2) is connected with a switching-off control input signal Fz +, end points 9-5 of the switching-off control relay (JD2) are normally open contacts, and end points 9-1 of the switching-off control relay are normally closed contacts, wherein the end point 9 of the switching-off control relay (JD2) is connected with the end point 5 of the switching-on control relay (JD1), the end point 5 of the switching-off control relay (JD2) is connected with a positive signal CN + of the energy storage power supply, and the end point 1 of the switching-off control relay (JD2) is connected with a switching-on control input signal Hz +; the end connection point 12-4 of the opening control relay (JD2) is a normally closed connection point, the end connection point 12-8 of the opening control relay (JD2) is a normally open connection point, and the end connection points 12-4 and 12-8 of the opening control relay (JD2) form a state signal output connection point of the analog circuit breaker.
2. The very simple analog circuit breaker circuit according to claim 1, characterized in that the topology of the closing control relay (JD1) is two groups of independent C-type contacts, the terminals 9-5 of the closing control relay (JD1) are connected in series to the positive loop of the energy storage power supply, the terminals 12-4 of the closing control relay (JD1) are connected in series to the holding loop of the separating brake, and the coil of the closing control relay (JD1) is driven by a dc signal.
3. The very simple analog circuit breaker circuit according to claim 1, characterized in that the topology of the switching-off control relay (JD2) is two sets of independent C-type contacts, the terminal 9-5 of the switching-off control relay (JD2) is connected in series to the positive loop of the energy storage power supply, the terminal 9-1 of the switching-off control relay (JD2) is connected in series to the holding loop, and the coil of the switching-off control relay (JD2) is driven by a dc signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121951754.7U CN215953790U (en) | 2021-08-19 | 2021-08-19 | Extremely simple and easy simulation circuit breaker circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121951754.7U CN215953790U (en) | 2021-08-19 | 2021-08-19 | Extremely simple and easy simulation circuit breaker circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215953790U true CN215953790U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121951754.7U Active CN215953790U (en) | 2021-08-19 | 2021-08-19 | Extremely simple and easy simulation circuit breaker circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215953790U (en) |
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2021
- 2021-08-19 CN CN202121951754.7U patent/CN215953790U/en active Active
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