CN114089179A - Remote control testing device for automatic distribution network terminal circuit breaker - Google Patents
Remote control testing device for automatic distribution network terminal circuit breaker Download PDFInfo
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- CN114089179A CN114089179A CN202111367098.0A CN202111367098A CN114089179A CN 114089179 A CN114089179 A CN 114089179A CN 202111367098 A CN202111367098 A CN 202111367098A CN 114089179 A CN114089179 A CN 114089179A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
Abstract
The invention discloses a remote control testing device for an automatic distribution network terminal circuit breaker. The device comprises a switch unit, a switch remote signaling acquisition unit, a closing remote signaling acquisition unit and an opening remote signaling acquisition unit; the automatic distribution network terminal is used for providing remote control signals; the switch unit is used for gating different paths of the switch unit according to the remote control signal, and the switch remote signaling acquisition unit, the closing remote signaling acquisition unit and the opening remote signaling acquisition unit respectively acquire the remote signaling signal when the corresponding paths are gated; the path of the switch unit is a path formed when any input end is connected with an output end. The remote control test can be realized under the condition of no power failure, the influence of the remote control test on power utilization is reduced, a large amount of wiring work during the remote control test after power failure can be reduced, the difficulty of the remote control test is reduced, and the test efficiency of the remote control test is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of power system test, in particular to a remote control test device for an automatic distribution network terminal circuit breaker.
Background
At present, the intelligent power distribution network is frequently applied, and the maintenance of the power distribution network automation terminal and the debugging work of the automation switch become an indispensable part in the operation and maintenance work of the power distribution network. However, after the automatic switch is put into use, the remote control debugging work of the running automatic primary equipment can be carried out only when the power grid equipment is powered off, if the power failure happens, the breakdown of the urban power system can be caused, the working efficiency is influenced, the verification of the distribution network fixed value setting work needs the set of automatic equipment to be separated from the power distribution network system, the debugging of the running automatic secondary equipment needs to insert a corresponding wiring terminal by a signal wire to lead out a signal to the simulation circuit breaker module after the power failure of the secondary equipment, so that the debugging process of the automatic secondary equipment needs a large amount of wiring, the debugging difficulty is increased, and the debugging efficiency is reduced.
Disclosure of Invention
The invention provides a remote control testing device of an automatic distribution network terminal circuit breaker, which can carry out remote control debugging work when an automatic primary device is not powered off, and has the advantages of convenient operation and simple wiring.
The embodiment of the invention provides a remote control testing device of an automatic distribution network terminal circuit breaker, which comprises a switch unit, a switch remote signaling acquisition unit, a closing remote signaling acquisition unit and a separating remote signaling acquisition unit;
the automatic distribution network terminal is used for providing remote control signals; the first input end of the switch unit is connected with the first output end of an automatic distribution network terminal, the second input end of the switch unit is connected with the second output end of the automatic distribution network terminal, the first output end and the third output end of the switch unit are connected with the switch remote signaling acquisition unit, the second output end of the switch unit is connected with the switch-on remote signaling acquisition unit, the fourth output end of the switch unit is connected with the switch-off remote signaling acquisition unit, the switch unit is used for gating different channels of the switch unit according to the remote control signals, and the switch remote signaling acquisition unit, the switch-on remote signaling acquisition unit and the switch-off remote signaling acquisition unit respectively acquire the remote signaling signals when the corresponding channels are gated; the path of the switch unit is a path formed when any input end is connected with an output end.
Optionally, the switch unit includes a first switch subunit and a second switch subunit;
the input end of the first switch subunit is used as the first input end of the switch unit, and the two output ends of the first switch subunit are respectively used as the first output end and the second output end of the switch unit; the first switch subunit is used for gating the input end of the first switch subunit and the output end of any one first switch subunit according to the remote control signal;
the input end of the second switch subunit is used as the second input end of the switch unit, and two output ends of the second switch subunit are respectively used as the third output end and the fourth output end of the switch unit; the second switch subunit is used for gating the input end of the second switch subunit and the output end of any one second switch subunit according to the remote control signal.
Optionally, the switch unit comprises a double-pole double-throw switch; the double-pole double-throw switch comprises two single ends and two double ends; and the two single ends are respectively used as a first input end and a second input end of the switch unit, one of the two single ends is used as a first output end and a second output end of the switch unit, and the other two single ends is used as a third output end and a fourth output end of the switch unit.
Optionally, the remote control signal includes a closing remote control signal; the switching-on remote signaling acquisition unit comprises a switching-on circuit and a switching-on position circuit;
the switching-on circuit is connected with the second output end of the switch unit and is used for forming a first control signal according to the switching-on remote control signal; and the switching-on position circuit is used for forming a switching-on remote signaling signal according to the first control signal.
Optionally, the switching-on circuit includes a first switch and a switching-on relay; the first end of the first switch is connected with the second output end of the switch unit, and the second end of the first switch is connected with the body of the closing relay through the first normally closed contact of the closing relay; the switching-on position circuit comprises a second switch and a first normally open contact of the switching-on relay, a first end of the second switch serves as an output end of the switching-on position circuit, a second end of the second switch is connected with a first end of the first normally open contact, and a second end of the first normally open contact is connected with a public end.
Optionally, the remote control testing device of the automatic distribution network terminal circuit breaker further comprises a first indicating unit and a second normally open contact of the closing relay; the first end of the first indicating unit is connected with the positive pole of a power supply, and the second end of the first indicating unit is connected with the negative pole of the power supply through the second normally-open contact.
Optionally, the remote control signal includes a brake-separating remote control signal; the brake-separating remote signaling acquisition unit comprises a brake-separating circuit and a brake-separating position circuit;
the switching-off circuit is connected with a fourth output end of the switch unit and is used for forming a second control signal according to the switching-off remote control signal; and the brake-separating position circuit is used for forming a brake-separating remote signaling signal according to the second control signal.
Optionally, the opening circuit includes a third switch and an opening relay; the first end of the third switch is connected with the fourth output end of the switch unit, and the second end of the third switch is connected with the body of the opening relay through a third normally open contact of the opening relay; the opening position circuit comprises a fourth switch and a second normally closed contact of the opening relay, the first end of the fourth switch serves as the output end of the opening position circuit, the second end of the fourth switch is connected with the first end of the second normally closed contact, and the second end of the second normally closed contact is connected with the public end.
Optionally, the remote control testing device of the automatic distribution network terminal circuit breaker further comprises a second indicator light and a fourth normally closed contact of the opening relay; the first end of the second indicating unit is connected with the anode of the power supply, and the second end of the second indicating unit is connected with the cathode of the power supply through the fourth normally closed contact.
Optionally, the remote control testing device for the automatic distribution network terminal circuit breaker further comprises an aviation plug;
the aviation plug comprises a first pin and a second pin, wherein the first pin is connected with the output end of a switching-on remote signaling acquisition unit, the second pin is connected with the output end of a switching-off remote signaling acquisition unit, the sixth pin is connected with a public end, the seventh pin is connected with the second output end of a switch unit, the eighth pin is connected with the positive electrode of a power supply, the ninth pin is connected with the fourth output end of the switch unit, and the tenth pin is connected with the negative electrode of the power supply.
According to the technical scheme provided by the invention, the switch remote signaling acquisition unit, the closing remote signaling acquisition unit and the opening remote signaling acquisition unit respectively acquire the remote signaling signals when the corresponding paths are gated through the switch unit according to different paths of the remote control signal gating switch unit, so that the remote control test can be realized under the condition of no power failure, the influence of the remote control test on the power utilization is reduced, a large amount of wiring work during the remote control test after the power failure can be reduced, the difficulty of the remote control test is reduced, and the test efficiency of the remote control test is improved.
Drawings
Fig. 1 is a schematic structural diagram of a remote control testing device for an automatic distribution network terminal circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another remote testing device for a circuit breaker of an automatic distribution network terminal according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another remote control testing device for a breaker of an automatic distribution network terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a closing remote signaling acquisition unit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a separating brake remote signaling collecting unit according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an aviation plug provided in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in greater detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. A process may be terminated when its operations are completed, but may have additional steps not included in the figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, a first voltage may be referred to as a first voltage, and similarly, a second voltage may be referred to as a first voltage, without departing from the scope of the present application. The first voltage and the second voltage are both the first voltage, but they are not the same first voltage. The terms "first", "second", etc. are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Fig. 1 is a schematic structural diagram of a remote testing device for an automatic distribution network terminal circuit breaker according to an embodiment of the present invention, and as shown in fig. 1, the device includes a switch unit 120, a switch remote signaling acquisition unit 130, a closing remote signaling acquisition unit 150, and an opening remote signaling acquisition unit 140; the automatic distribution network terminal 110 is used for providing remote control signals; a first input end of the switch unit 120 is connected with a first output end of the automatic distribution network terminal 110, a second input end of the switch unit 120 is connected with a second output end of the automatic distribution network terminal, a first output end and a third output end of the switch unit 120 are connected with the switch remote signaling acquisition unit 130, a second output end of the switch unit 120 is connected with the switch-on remote signaling acquisition unit 150, a fourth output end of the switch unit 120 is connected with the switch-off remote signaling acquisition unit 140, the switch unit 120 is used for gating different channels of the switch unit 120 according to remote control signals, and the switch remote signaling acquisition unit 130, the switch-on remote signaling acquisition unit 150 and the switch-off remote signaling acquisition unit 140 respectively acquire remote signaling signals when corresponding channels are gated; the path of the switch unit 120 is a path formed when any input terminal is connected to an output terminal.
In particular, the automation distribution network terminal 110 is configured to provide remote control signals to the switch unit 120. The remote control signal may include various kinds, and for example, may include a remote control signal for opening and closing of the switching unit 120, a remote control signal for opening of a circuit breaker, and a remote control signal for closing of a circuit breaker. The switching unit 120 may gate different paths according to the remote control signal, so that the remote control signal provided by the automation distribution network terminal 110 is transmitted to the corresponding remote signaling acquisition unit through different paths. For example, when the remote control signal provided by the automatic distribution network terminal 110 is the remote control signal of the switch unit 120, at this time, the switch unit 120 may gate the path between the first input terminal and the first output terminal and the path between the second input terminal and the third output terminal according to the remote control signal, so that the switch remote signaling collecting unit 130 may obtain the remote control signal, and collect the remote signaling signal for the switch unit 120. When the remote control signal provided by the automatic distribution network terminal 110 is a switching-on remote control signal of the circuit breaker, the switching unit 120 may gate the path between the first input end and the second output end according to the remote control signal, so that the switching-on remote control signal acquisition unit 150 may acquire the remote control signal to acquire the switching-on remote control signal of the circuit breaker. When the remote control signal provided by the automatic distribution network terminal 110 is the opening remote control signal of the circuit breaker, the switch unit 120 may gate the path between the third input end and the fourth output end according to the remote control signal, so that the opening remote control signal acquisition unit 140 may acquire the remote control signal to acquire the opening remote control signal of the circuit breaker. Therefore, different paths are gated through the switch unit 120 according to the remote control signals provided by the automatic distribution network terminal 110, so that different remote signaling acquisition units acquire corresponding remote signaling signals, remote control testing can be realized under the condition of no power failure, and meanwhile, a large amount of wiring work during remote control testing after power failure can be reduced.
According to the technical scheme, the switch unit gates different paths of the switch unit according to the remote control signal, the switch remote signaling acquisition unit, the closing remote signaling acquisition unit and the opening remote signaling acquisition unit respectively acquire the remote signaling signal when the corresponding paths are gated, so that remote control testing can be realized under the condition of no power failure, the influence of the remote control testing on power utilization is reduced, meanwhile, a large amount of wiring work during remote control testing after power failure can be reduced, the difficulty of the remote control testing is reduced, and the testing efficiency of the remote control testing is improved.
Fig. 2 is a schematic structural diagram of another remote testing apparatus for a breaker of an automatic distribution network terminal according to an embodiment of the present invention, and as shown in fig. 2, a switch unit 120 includes a first switch subunit 121 and a second switch subunit 122;
an input end of the first switch subunit 121 serves as a first input end of the switch unit 120, and two output ends of the first switch subunit 121 serve as a first output end and a second output end of the switch unit 120, respectively; the first switch subunit 121 is configured to gate the input terminal of the first switch subunit 121 and the output terminal of any first switch subunit 121 according to a remote control signal;
an input end of the second switch subunit 122 is used as a second input end of the switch unit 120, and two output ends of the second switch subunit 122 are respectively used as a third output end and a fourth output end of the switch unit 120; the second switch subunit 122 is configured to gate the input terminal of the second switch subunit 122 and the output terminal of any one of the second switch subunits 122 according to the remote control signal.
Specifically, the first switch subunit 121 may be a single-pole double-throw switch, an input end of the first switch subunit 121 is connected to a first output end of the automation distribution network terminal 110, a first output end of the first switch subunit 121 is connected to the switch remote signaling acquisition unit 130, a second output end of the first switch subunit 121 is connected to the switch-on remote signaling acquisition unit 150, when the remote control signal provided by the automation distribution network terminal is the remote control signal of the switch, the first switch subunit 121 may be controlled to gate the input end and the first output end at this time, so that the remote control signal of the switch is transmitted to the switch remote signaling acquisition unit 130 through the first switch subunit 121, and the switch remote signaling acquisition unit 130 performs acquisition of the switch remote signaling signal according to the remote control signal. When the remote control signal provided by the automatic distribution network terminal is a closing remote control signal, the first switch subunit 121 can be controlled to gate the input end and the second output end, and the closing remote signal acquisition unit 150 acquires the closing remote signal of the circuit breaker according to the closing remote control signal. Similarly, the second switch subunit 122 may be a single-pole double-throw switch, an input end of the second switch subunit 122 is connected to the second output end of the automatic distribution network terminal 110, a first output end of the second switch subunit 122 is connected to the switch remote signaling acquisition unit 130, and a second output end of the second switch subunit 122 is connected to the opening remote signaling acquisition unit 140. When the remote control signal provided by the automatic distribution network terminal is the remote control signal of the switch, the second switch subunit 122 can be controlled to gate the input end and the first output end at the moment, so that the remote control signal of the switch is transmitted to the switch remote signaling acquisition unit 130 through the second switch subunit 122, and the switch remote signaling acquisition unit 130 acquires the switch remote signaling signal according to the remote control signal. When the remote control signal provided by the automatic distribution network terminal 110 is the opening remote control signal of the circuit breaker, the second switch subunit 122 can be controlled to gate the input end and the second output end, so that the opening remote control signal acquisition unit 140 can acquire the remote control signal to acquire the opening remote control signal of the circuit breaker.
It should be noted that, in other embodiments, the first switch subunit 121 may include two single-pole single-throw switches, and the second switch subunit 122 may also include two single-pole single-throw switches, and the states of the multiple single-pole single-throw switches respectively control the switch unit 120 to gate different paths, so that the switch remote signaling collecting unit 130, the closing remote signaling collecting unit 150, and the opening remote signaling collecting unit 140 respectively collect remote signaling signals when the corresponding paths are gated. The specific working process is substantially the same as the above process, and is not described herein again.
Fig. 3 is a schematic structural diagram of another remote testing apparatus for an automatic distribution network terminal circuit breaker according to an embodiment of the present invention, and as shown in fig. 3, on the basis of the foregoing technical solutions, the switch unit 120 includes a double-pole double-throw switch K1; the double-pole double-throw switch K1 includes two single ends and two double ends; two single ends are respectively used as a first input end and a second input end of the switch unit 120, one double end is used as a first output end and a second output end of the switch unit 120, and the other double end is used as a third output end and a fourth output end of the switch unit 120.
In particular, the control loop of the switch body may control the state of the double pole double throw switch K1. As shown in fig. 2 and 3, each of the two terminals includes a first terminal 2 and a second terminal 3, the first terminal of each of the two terminals serves as a first output terminal and a third output terminal of the switching unit 120, the second terminal 3 of one of the two terminals serves as a second output terminal k11 to be connected to the switching-on remote signaling collecting unit 150, and the second terminal 3 of one of the two terminals serves as a fourth output terminal k12 to be connected to the switching-off remote signaling collecting unit 140. The control circuit of switch body is according to the remote control signal of switch, the state of closing remote control signal and the separating brake remote control signal control double-pole double-throw switch K1 of circuit breaker, thereby can gate at least one route of double-pole double-throw switch K1 and carry out the collection of remote control signal, thereby can realize the remote control test under the circumstances of not having a power failure, the influence of remote control test to the power consumption has been reduced, simultaneously can reduce a large amount of wiring work when carrying out the remote control test after having a power failure, the degree of difficulty of remote control test has been reduced, the efficiency of testing of remote control test has been improved.
Fig. 4 is a schematic structural diagram of a closing remote signaling acquisition unit according to an embodiment of the present invention, and as shown in fig. 4, the remote control signal includes a closing remote control signal; the closing remote signaling acquisition unit 150 comprises a closing circuit 151 and a closing position circuit 152;
the closing circuit 151 is connected to the second output terminal k11 of the switching unit 120, and the closing circuit 151 is configured to form a first control signal according to the closing remote control signal; the closing position circuit 152 is configured to form a closing remote signaling signal according to the first control signal.
Specifically, the closing circuit 151 may obtain a closing remote control signal through the second output terminal k11 of the switching unit 120, and at this time, the closing circuit 151 may form a first control signal according to the closing remote control signal. The switching-on circuit 151 and the switching-on position circuit 152 can be connected in an interlocking manner, when the switching-on circuit 151 forms a first control signal, the switching-on position circuit 152 is directly controlled by the first control signal to form a switching-on remote signaling signal, and the collection of the switching-on remote signaling signal of the circuit breaker is completed.
With continued reference to fig. 4, optionally, the closing circuit 151 includes a first switch S1 and a closing relay T1; a first end of the first switch S1 is connected with a second output end k11 of the switch unit 120, and a second end of the first switch S1 is connected with the body of the closing relay T1 through a first normally closed contact T11 of the closing relay T1; the switching-on position circuit 152 comprises a second switch S2 and a first normally open contact T12 of a switching-on relay T1, a first end of the second switch S2 is used as an output end of the switching-on position circuit 152, a second end of the second switch S2 is connected with a first end of a first normally open contact T12, and a second end of the first normally open contact T12 is connected with a common end COM.
In particular, the closing circuit 151 further comprises a switch through which the body of the closing relay T1 is DC-connected to the negative pole of the power supply. Which is turned on or off simultaneously with the first switch S1. Before the automatic distribution network terminal sends a closing pulse signal, a first normally closed contact T11 of a closing relay T1 is closed, when the automatic distribution network terminal sends the closing pulse signal, a first switch S1 and a second switch S2 are closed, the body of the closing relay T1 is powered on, the first normally closed contact T11 of the closing relay T1 is disconnected at the moment, a first normally open contact T12 is closed, a closing position circuit forms a loop at the moment, a closing telecommand signal is output, and the collection of the closing telecommand signal of the circuit breaker is completed.
With continued reference to fig. 3 and 4, the remote testing apparatus for the automatic distribution network terminal circuit breaker further includes a first indicating unit 160 and a second normally open contact T13 of a closing relay T1; the first end of the first indicating unit 160 is connected to the positive pole DC + of the power supply, and the second end of the first indicating unit 160 is connected to the negative pole DC-of the power supply through the second normally open contact T13.
Specifically, as shown in fig. 3 and 4, the first indication unit 160 may be an indicator lamp. When the automatic distribution network terminal sends a closing pulse signal, the body of the closing relay T1 is powered on, and the second normally open contact T13 of the closing relay T1 is closed, so that the first indicating unit 160 is connected with a power supply and indicates under the action of voltage provided by the power supply, and the state of the remote control testing device of the automatic distribution network terminal circuit breaker is favorably determined.
Fig. 5 is a schematic structural diagram of a separating-gate remote-signaling collecting unit according to an embodiment of the present invention, and as shown in fig. 5, the remote control signal includes a separating-gate remote control signal; the opening remote signaling acquisition unit 140 comprises an opening circuit 141 and an opening position circuit 142;
the switching-off circuit 141 is connected with the fourth output terminal k12 of the switching unit 120, and the switching-off circuit 141 is configured to form a second control signal according to the switching-off remote control signal; the opening position circuit 142 is used for forming an opening remote signaling signal according to the second control signal.
Specifically, the opening circuit 141 can obtain the opening remote control signal through the fourth output terminal k12 of the switch unit 120, and at this time, the opening circuit 141 can form the second control signal according to the opening remote control signal. The opening circuit 141 and the opening position circuit 142 can be connected in an interlocking manner, when the opening circuit 141 forms a second control signal, the opening position circuit 142 is directly controlled by the second control signal to form an opening remote signaling signal, and the opening remote signaling signal of the circuit breaker is acquired.
With continued reference to fig. 3-5, the opening circuit 141 includes a third switch S3 and an opening relay T2; a first end of the third switch S3 is connected to the fourth output end k12 of the switch unit 120, and a second end of the third switch S3 is connected to the body of the opening relay T2 through the third normally open contact T21 of the opening relay T2; the opening position circuit 142 includes a fourth switch S4 and a second normally closed contact T22 of the opening relay T2, a first end of the fourth switch S4 is used as an output end of the opening position circuit 141, a second end of the fourth switch S4 is connected to a first end of a second normally closed contact T22, and a second end of the second normally closed contact T22 is connected to the common end COM.
In particular, the opening circuit 141 further comprises a switch by means of which the body of the opening relay T2 is DC-connected to the negative pole of the power supply. Which is turned on or off simultaneously with the third switch S3. When the automatic distribution network terminal sends out a closing pulse signal, the third switch S3 and the fourth switch S4 are simultaneously closed with the first switch S1 and the second switch S2. After the automatic distribution network terminal sends a closing pulse signal, the body of the relay T2 is electrified, the third normally open contact T21 is closed, and the second normally closed contact T22 is opened. When the automatic distribution network terminal sends a switching-off pulse signal, the switching-off relay T2 is powered off, the third normally open contact T21 is disconnected, the second normally closed contact T22 is closed, and at the moment, a switching-off position circuit forms a loop and outputs a switching-off remote signaling signal to finish the acquisition of the switching-off remote signaling signal of the circuit breaker.
With continued reference to fig. 3-5, the remote testing apparatus for the automatic distribution network terminal circuit breaker further includes a second indicator light 170 and a fourth normally closed contact T23 of a tripping relay T2; the first end of the second indicating unit 170 is connected to the positive pole DC + of the power supply, and the second end of the second indicating unit 170 is connected to the negative pole DC-of the power supply through the fourth normally closed contact T23.
Specifically, as shown in fig. 3 and 5, the second indication unit 170 may be an indication lamp. When the automatic distribution network terminal sends a switching-off pulse signal, the body of the switching-off relay T2 is powered down, the fourth normally closed contact T13 of the switching-off relay T2 is closed, so that the second indicating unit 170 is connected with a power supply and indicates under the action of voltage provided by the power supply, and the state of the remote control testing device of the automatic distribution network terminal circuit breaker is favorably determined.
Fig. 6 is a schematic structural diagram of an aviation plug provided in an embodiment of the present invention, and as shown in fig. 6, the remote control testing apparatus for an automatic distribution network terminal circuit breaker further includes an aviation plug 180;
the first pin 11 of the aviation plug 180 is connected with the output end of the closing remote signaling acquisition unit 150, the second pin 12 of the aviation plug 180 is connected with the output end of the opening remote signaling acquisition unit 140, the sixth pin 13 of the aviation plug 180 is connected with the common end COM, the seventh pin 17 of the aviation plug 180 is connected with the second output end of the switch unit 120, the eighth pin 18 of the aviation plug 180 is connected with the positive pole DC + of the power supply, the ninth pin 19 of the aviation plug 180 is connected with the fourth output end of the switch unit 120, and the tenth pin 10 of the aviation plug 180 is connected with the negative pole DC-of the power supply.
Specifically, the aviation plug comprises an aviation plug male pin and an aviation plug female pin, the aviation plug male pin and the aviation plug female pin are in one-to-one correspondence, the pins connected with the aviation plug male pin and the pins connected with the aviation plug female pin can be correspondingly connected, and therefore the connection process of different pins can be simplified. Illustratively, as shown in fig. 3 to 6, a first pin 11 of the aviation male plug is connected with an output end of the closing telecommand acquisition unit 150, a first pin 11 of the aviation female plug is connected with a pin of the automation distribution network terminal corresponding to the output end of the closing telecommand acquisition unit 150, a second pin 12 of the aviation male plug is connected with an output end of the opening telecommand acquisition unit 140, a second pin 12 of the aviation female plug is connected with a pin of the automation distribution network terminal corresponding to the output end of the opening telecommand acquisition unit 140, sixth pins 13 of the aviation male plug and the aviation female plug are both connected with a common terminal COM, a seventh pin 17 of the aviation male plug is connected with a second output end of the switch unit 120, a seventh pin 17 of the aviation female plug is connected with a pin of the automation distribution network terminal corresponding to the second output end of the switch unit 120, and an eighth pin 18 of the aviation male plug and the aviation female plug is connected with a positive electrode DC + of the power supply, the ninth pin 19 of the aviation plug male is connected with the fourth output end of the switch unit 120, the ninth pin 19 of the aviation plug female is connected with a pin corresponding to the fourth output end of the switch unit 120 in the automatic distribution network terminal, and the tenth pin 10 of the aviation plug male and the aviation plug female is connected with the negative pole DC-of the power supply.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A remote control testing device of an automatic distribution network terminal circuit breaker is characterized by comprising a switch unit, a switch remote signaling acquisition unit, a closing remote signaling acquisition unit and a breaking remote signaling acquisition unit;
the automatic distribution network terminal is used for providing remote control signals; the first input end of the switch unit is connected with the first output end of an automatic distribution network terminal, the second input end of the switch unit is connected with the second output end of the automatic distribution network terminal, the first output end and the third output end of the switch unit are connected with the switch remote signaling acquisition unit, the second output end of the switch unit is connected with the switch-on remote signaling acquisition unit, the fourth output end of the switch unit is connected with the switch-off remote signaling acquisition unit, the switch unit is used for gating different channels of the switch unit according to the remote control signals, and the switch remote signaling acquisition unit, the switch-on remote signaling acquisition unit and the switch-off remote signaling acquisition unit respectively acquire the remote signaling signals when the corresponding channels are gated; the path of the switch unit is a path formed when any input end is connected with an output end.
2. The device for the remote testing of the circuit breakers of the automatic distribution network terminal according to claim 1, wherein the switching unit comprises a first switching subunit and a second switching subunit;
the input end of the first switch subunit is used as the first input end of the switch unit, and the two output ends of the first switch subunit are respectively used as the first output end and the second output end of the switch unit; the first switch subunit is used for gating the input end of the first switch subunit and the output end of any one first switch subunit according to the remote control signal;
the input end of the second switch subunit is used as the second input end of the switch unit, and two output ends of the second switch subunit are respectively used as the third output end and the fourth output end of the switch unit; the second switch subunit is used for gating the input end of the second switch subunit and the output end of any one second switch subunit according to the remote control signal.
3. The device for the remote testing of circuit breakers of distribution networks for automation according to claim 1, characterized in that said switching unit comprises a double pole double throw switch; the double-pole double-throw switch comprises two single ends and two double ends; and the two single ends are respectively used as a first input end and a second input end of the switch unit, one of the two single ends is used as a first output end and a second output end of the switch unit, and the other two single ends is used as a third output end and a fourth output end of the switch unit.
4. The device for remotely testing the circuit breaker of an automated distribution network terminal of claim 1, wherein the remote control signal comprises a closing remote control signal; the switching-on remote signaling acquisition unit comprises a switching-on circuit and a switching-on position circuit;
the switching-on circuit is connected with the second output end of the switch unit and is used for forming a first control signal according to the switching-on remote control signal; and the switching-on position circuit is used for forming a switching-on remote signaling signal according to the first control signal.
5. The device for remotely testing the circuit breaker of an automated distribution network terminal of claim 4, wherein the closing circuit comprises a first switch and a closing relay; the first end of the first switch is connected with the second output end of the switch unit, and the second end of the first switch is connected with the body of the closing relay through the first normally closed contact of the closing relay; the switching-on position circuit comprises a second switch and a first normally open contact of the switching-on relay, a first end of the second switch serves as an output end of the switching-on position circuit, a second end of the second switch is connected with a first end of the first normally open contact, and a second end of the first normally open contact is connected with a public end.
6. The remote-control testing device of the automatic distribution network terminal circuit breaker according to claim 4, further comprising a first indicating unit and a second normally open contact of the closing relay; the first end of the first indicating unit is connected with the positive pole of a power supply, and the second end of the first indicating unit is connected with the negative pole of the power supply through the second normally-open contact.
7. The device for the remote testing of the breakers of automatic distribution network terminals according to any of the claims 1 to 6, characterized in that said remote control signal comprises a tripping remote control signal; the brake-separating remote signaling acquisition unit comprises a brake-separating circuit and a brake-separating position circuit;
the switching-off circuit is connected with a fourth output end of the switch unit and is used for forming a second control signal according to the switching-off remote control signal; and the brake-separating position circuit is used for forming a brake-separating remote signaling signal according to the second control signal.
8. The device for remotely testing the breakers of the automatic distribution network terminal according to claim 7, wherein the opening circuit comprises a third switch and an opening relay; the first end of the third switch is connected with the fourth output end of the switch unit, and the second end of the third switch is connected with the body of the opening relay through a third normally open contact of the opening relay; the separating brake position circuit includes the fourth switch with the second normally closed contact of separating brake relay, the first end of fourth switch is regarded as separating brake position circuit's output, the second end of fourth switch with the first end of second normally closed contact is connected, the second end and the public end of second normally closed contact are connected.
9. The remote testing device of the automatic distribution network terminal circuit breaker as recited in claim 7, further comprising a second indicator light and a fourth normally closed contact of the opening relay; the first end of the second indicating unit is connected with the anode of the power supply, and the second end of the second indicating unit is connected with the cathode of the power supply through the fourth normally closed contact.
10. The device for remotely testing the breakers of the automatic distribution network terminals, according to claim 8, further comprising an aviation plug;
the aviation plug comprises a first pin and a second pin, wherein the first pin is connected with the output end of a switching-on remote signaling acquisition unit, the second pin is connected with the output end of a switching-off remote signaling acquisition unit, the sixth pin is connected with a public end, the seventh pin is connected with the second output end of a switching unit, the eighth pin is connected with the positive electrode of a power supply, the ninth pin is connected with the fourth output end of the switching unit, and the tenth pin is connected with the negative electrode of the power supply.
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| CN114089179B (en) | 2023-07-21 |
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