CN214671190U - Direct current protection and controlling means teaching aid case - Google Patents
Direct current protection and controlling means teaching aid case Download PDFInfo
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- CN214671190U CN214671190U CN202120207190.XU CN202120207190U CN214671190U CN 214671190 U CN214671190 U CN 214671190U CN 202120207190 U CN202120207190 U CN 202120207190U CN 214671190 U CN214671190 U CN 214671190U
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Abstract
The utility model provides a direct current protection and controlling means teaching aid case contains: the teaching aid box comprises a teaching aid box body, a power converter, an operation module, a signal feedback unit and a control unit, wherein the power converter, the operation module, the signal feedback unit and the control unit are arranged in the teaching aid box body; the control unit includes: and the signal terminal strip is in circuit connection with the operation module and the signal feedback unit to realize various analog operations. The utility model discloses improved maintenance staff's real standard teaching environment, improved staff's teaching training efficiency, provide high-efficient practical training teaching aid for staff's training.
Description
Technical Field
The utility model relates to an electric railway technical field especially relates to a direct current protection and controlling means teaching aid case, is applied to rail transit integrated protection device and overhauls the training.
Background
The direct current protection and control device is mainly used for a direct current power supply system, integrates a protection and control unit, protects direct current switch equipment and a contact network system from extreme operation conditions, and detects a short circuit condition before the maximum short circuit current is reached.
In the training of present direct current circuit breaker specialty, do not have the maintenance training equipment who is exclusively used in direct current protection and controlling means, in staff training teaching, though adopt the real object teaching, nevertheless because of can not simulate on-the-spot on-off state and operate, can't let the staff directly perceivedly know the equipment principle, lead to training inefficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a DC protection and controlling means teaching aid case, required signal and switch switching ring analog operation and signal feedback in the simulation teaching.
In order to achieve the above object, the utility model provides a direct current protection and controlling means teaching aid case contains: the teaching aid box comprises a teaching aid box body, a power converter, an operation module, a signal feedback unit and a control unit, wherein the power converter, the operation module, the signal feedback unit and the control unit are arranged in the teaching aid box body; the control unit includes: and the signal terminal strip is in circuit connection with the operation module and the signal feedback unit to realize various analog operations.
The input end of the power converter is connected with an external 220V alternating current power supply, 220V alternating current is converted into 24V direct current, and the output end of the power converter outputs 24V direct current to the control unit and the signal feedback unit.
The signal terminal row is provided with a plurality of signal terminals and at least comprises:
an input port of a working power supply;
a near control command input signal port;
the 'opening command' input signal port;
a 'closing command' input signal port;
a direct closing command input signal port;
a "cold standby position" input signal port;
a "hot standby position" input signal port;
a switching-on command of a line test relay is input into a signal port;
a 'breaker closing' input signal port;
a 'breaker opening' input signal port;
a 'closing command' output signal port;
the 'opening command' outputs a signal port;
a switching-on command of the line test relay is output to a signal port;
a group alarm output signal port;
a "system ready command" output signal port;
the 'opening command' outputs a signal port;
the 'closing command' outputs a signal port.
The operation module comprises: the system comprises an opening switch SOA, a closing switch SOE, a direct closing switch S23, a cold standby switch S01, a hot standby switch S02, an opening and closing ring switch S/G and a group alarm indicator lamp H10;
the switching-off switch SOA is connected to a switching-off command input signal port of the signal terminal row, the switching-off switch SOA is closed, and a switching-off signal command is input to the signal terminal row;
the switching-on switch SOE is connected to a switching-on command input signal port of the signal terminal strip, the switching-off switch SOE is closed, and a switching-on signal command is input to the signal terminal strip;
the direct closing switch S23 is connected to a "direct closing command" input signal port of the signal terminal row, closes the direct closing switch S23, and inputs a direct closing signal command to the signal terminal row;
the cold standby switch S01 is connected to the 'cold standby position' input signal port of the signal terminal strip, and the cold standby switch S01 is closed to disconnect the cold standby signal input signal terminal strip;
the hot standby switch S02 is connected to the "hot standby position" input signal port of the signal terminal strip, closing the hot standby switch S02 and disconnecting the hot standby signal input signal terminal strip;
the group alarm indicator lamp H10 is connected to a group alarm output signal port of the signal terminal strip, and when the signal terminal strip generates fault alarm, power is output to the indicator lamp-H10;
the open-close loop switch S/G is connected to a signal feedback unit.
The operation module further includes: and the brake-separating indicator lamp SOA is connected to the brake-separating command output signal port of the signal terminal row, and the signal terminal row outputs a brake-separating command, so that the brake-separating indicator lamp SOA is on.
The operation module further includes: and the closing indicator lamp SOE is connected to a closing command output signal port of the signal terminal row, and the closing indicator lamp SOE is turned on when the signal terminal row outputs a closing command.
The signal feedback unit includes: an intermediate relay Q1, a first relay k0, a second relay k24, a third relay k02, a fourth relay k05, and a fifth relay k 03;
the intermediate relay Q1 simulates the action and signals of a breaker, the intermediate relay Q1 is connected in series with a normally open contact of a third relay k02 and a normally closed contact of a fifth relay k03, the normally open contact of the intermediate relay Q1 is connected to a breaker closing input signal port of a signal terminal row to simulate input of a closing signal, and the normally closed contact of the intermediate relay Q1 is connected to a breaker closing input signal port of the signal terminal row to simulate input of a switching-off signal;
the first relay k0 simulates actions and signals of a line test relay, the first relay k0 is connected to a 'line test relay closing command' output signal port of a signal terminal row, and a normally open contact of the first relay k0 is connected to a 'line test relay closing command' input signal port of the signal terminal row to simulate an input line test relay signal;
the second relay k24 simulates the action and signals of a system ready relay, the second relay k24 is connected to a system ready command output signal port of a signal terminal row, and a normally closed contact of the second relay k24 is connected to a group alarm indicator lamp H10;
the third relay k02 simulates a switching-off relay, the anode of the third relay k02 is connected to a switching-off command output signal port of a signal terminal block, and the normally-open contact of the third relay k02 is connected to the coil of the third relay k02 and plays a self-holding role;
the fourth relay k05 simulates a closing relay, the positive electrode of the fourth relay k05 is connected to a closing command output signal port of a signal terminal row, and the normally open contact of the fourth relay k05 is connected to a coil of a third relay k 02;
the fifth relay k03 is connected in series with an open-close ring switch S/G, the normally closed contact of the fifth relay k03 is connected in series with an intermediate relay Q1, and the normally open contact of the fifth relay k03 is connected to the normally open contact of the fourth relay k 05.
The utility model discloses improved maintenance staff's real standard teaching environment, improved staff's teaching training efficiency, provide high-efficient practical training teaching aid for staff's training.
Drawings
Fig. 1 is an external structure schematic diagram of a dc protection and control device teaching aid box provided by the utility model.
Fig. 2 is a circuit diagram of the power output unit.
Fig. 3 to 7 are circuit connection diagrams of the operation module, the signal feedback unit, and the control unit.
Detailed Description
The preferred embodiment of the present invention will be described in detail below with reference to fig. 1 to 7.
As shown in fig. 1, the utility model provides a direct current protection and controlling means teaching aid case for track traffic direct current protection and controlling means's maintenance training, this teaching aid case specifically contains: teaching aid case body 1 to and the power converter of setting in teaching aid case body 1, operating module, signal feedback unit, and the control unit.
As shown in fig. 2, the input end of the power converter 2 is connected to an external 220V ac power source, and converts 220V ac power into 24V dc power, and the output end of the power converter 2 outputs 24V dc power.
As shown in fig. 1, the operation module includes: the system comprises an opening switch SOA, a closing switch SOE, a direct closing switch S23, a cold standby switch S01, a hot standby switch S02, an opening and closing ring switch S/G and a group alarm indicator lamp H10;
the signal feedback unit includes: an intermediate relay Q1, a first relay k0, a second relay k24, a third relay k02, a fourth relay k05, and a fifth relay k 03.
The control unit includes: and the signal terminal strip is in circuit connection with the power converter 2, the operation module and the signal feedback unit to realize various analog operations.
In this embodiment, the signal terminal row has a plurality of signal terminals, see in particular the following:
x1:1 and X1:3 are input ports of a working power supply;
x10:6 is the "near control" command input signal port;
x10:4 is the input signal port of "opening command";
x10:5 is a 'closing command' input signal port;
x10:7 is the input signal port of 'direct closing command';
x11:2 is the "cold standby position" input signal port;
x11:1 is the "hot standby position" input signal port;
x11:0 is an input signal port of a switching-on command of the line test relay;
x10:1 is a 'breaker closing' input signal port;
x10:0 is a breaker opening input signal port;
x22:4 is a 'closing command' output signal port;
x22:2 is the output signal port of "opening command";
x22:6 is an output signal port of a switching-on command of the circuit testing relay;
x20:1 is a group alarm output signal port;
x20:2 is the "System ready Command" output Signal Port;
x20:3 is the output signal port of "opening command";
x20:4 is the "close command" output signal port.
In this embodiment, as shown in fig. 3, the opening switch SOA is connected to the opening command input signal port X10:4 of the signal terminal row, as shown in fig. 5, the opening indicator lamp SOA is connected to the opening command output signal port X20:3 of the signal terminal row, the opening switch SOA is closed, a 24V opening signal command is input to the signal terminal row, and the signal terminal row outputs the opening command again, so that the opening indicator lamp SOA is turned on;
as shown in fig. 3, the closing switch SOE is connected to a "closing command" input signal port X10:5 of the signal terminal strip, as shown in fig. 5, the closing indicator light SOE is connected to a "closing command" output signal port X20:4 of the signal terminal strip, the opening switch SOE is closed, a 24V closing signal command is input to the signal terminal strip, and the signal terminal strip outputs a closing command again, so that the closing indicator light SOE is turned on;
as shown in fig. 3, the direct closing switch S23 is connected to the "direct closing command" input signal port X10:7 of the signal terminal block, closes the direct closing switch S23, and inputs a 24V direct closing signal command to the signal terminal block;
as shown in fig. 4, the cold standby switch S01 is connected to the "cold standby position" input signal port X11:2 of the signal terminal block, closing the cold standby switch S01, will disconnect the cold standby 24V signal input signal terminal block;
as shown in FIG. 4, hot standby switch S02 is connected to "hot standby position" input signal port X11:1 of the signal terminal block, closing hot standby switch S02 will open the hot standby 24V signal input signal terminal block;
as shown in fig. 5, the group alarm indicator lamp H10 is connected to the "group alarm" output signal port X20:1 of the signal terminal block, and when a malfunction alarm is generated at the signal terminal block, outputs 24V power to the group alarm indicator lamp H10;
as shown in fig. 6, the opening/closing ring switch S/G is connected to the fifth relay K03;
as shown in fig. 6, the intermediate relay Q1 simulates the action and signal of a breaker, the intermediate relay Q1 is connected in series with the normally open contact of the third relay k02 and the normally closed contact of the fifth relay k03, as shown in fig. 4, the normally open contact Q1:34 of the intermediate relay Q1 is connected to the "breaker closing" input signal port X10:1 of the signal terminal row, the closing signal is input in an analog manner, and the normally closed contact Q1:22 of the intermediate relay Q1 is connected to the "breaker closing" input signal port X10:0 of the signal terminal row, and the opening signal is input in an analog manner;
as shown in fig. 7, the first relay k0 simulates the action and signal of a line test relay, the first relay k0 is connected to the output signal port X22:6 of the "line test relay closing command" of the signal terminal row, as shown in fig. 4, the normally open contact k0:12 of the first relay k0 is connected to the input signal port X11:0 of the "line test relay closing command" of the signal terminal row, and the line test relay signal is simulated;
as shown in fig. 5, the second relay k24 simulates the action and signal of a system ready relay, the second relay k24 is connected to the "system ready command" output signal port X20:2 of the signal terminal row, the normally closed contact k24:12 of the second relay k24 is connected to the group alarm indicator lamp H10, when the signal terminal row works normally, the signal terminal row output signal port X20:2 outputs the "system ready command" to the second relay k24, the group alarm indicator lamp-H10 is not lighted, when the signal terminal row has a fault, the signal terminal row output signal port X20:2 is not output with a signal, the second relay k24 is not powered, and the group alarm indicator lamp H10 is powered on;
as shown in fig. 3, the third relay k02 simulates a separating brake relay, the positive pole k02: a1 of the third relay k02 is connected to the 'separating brake command' output signal port X22:2 of the signal terminal row, the signal terminal row acts through the received opening and closing brake command, and the normally open contact of the third relay k02 is connected to the k02 coil to play a self-holding role;
as shown in fig. 3, the fourth relay k05 simulates a closing relay, the positive pole k05: a1 of the fourth relay k05 is connected to the "closing command" output signal port X22:4 of the signal terminal row, the signal terminal row acts through the received opening and closing command, the normally open contact of the fourth relay k05 is connected to the coil of the third relay k02, and the coil of the third relay k02 acts for the first time;
as shown in fig. 6, the fifth relay K03 is connected in series with the open/close ring switch S/G, the normally closed contact of the fifth relay K03 is connected in series with the intermediate relay Q1, the normally open contact of the fifth relay K03 is connected to the normally open contact of the fourth relay K05, the fifth relay K03 can be matched with the signal terminal to open the ring logic when being powered, and the analog control circuit breaker can be matched with the signal terminal to close the ring logic when the fifth relay K03 is not powered, so that the circuit breaker is analog controlled.
The working principle of the utility model is as follows:
as shown in fig. 4, closing cold standby switch S01 while hot standby switch S02 is turned off, the signal terminal strip will recognize the simulated breaker cold standby position signal;
closing the hot standby switch S02 while closing the cold standby switch S01 and the signal terminal strip will recognize the simulated breaker hot standby position signal;
closing the cold standby switch S01 while closing the hot standby switch S02, or, turning off the cold standby switch S01 while turning off the hot standby switch S02, the signal terminal strip will not recognize any position signal of the simulated circuit breaker;
closing the cold standby switch S01 and latching, inputs a signal to the "hot standby position" input signal port X11.1 of the signal terminal block. Closing hot standby switch S02 inputs a signal to "hot standby position" input signal port X11.2 of the signal terminal block.
As shown in fig. 3, when the "close control" command input signal port X10:6 receives the "close control" command, the closing switch SOE and the direct closing switch S23 are allowed to operate.
Closing the direct closing switch S23, inputting a signal to a 'direct closing command' input signal port X10:7 of the signal terminal row, communicating a loop, outputting a closing command to a signal port X22:4 of the signal terminal row to send a closing command to a fourth relay k05, closing a normally open contact k05 of the fourth relay k05 to enable an intermediate relay Q1 to be electrified and kept as shown in figure 6, closing a normally open contact Q1:34 of the intermediate relay Q1 to feed a closing signal back to a 'breaker closing' input signal port X10:1 of the signal terminal row, outputting a 'closing command' from an output signal port X20:4 of the signal terminal row, and turning on a closing switch SOE lamp at the moment.
After the SOA of the separating brake switch is closed, the separating brake command output signal ports X22:2 of the signal terminal row are reverse logic constant output nodes, the signals are continuously output after being switched on, when the separating brake command is obtained, the PRO terminal row X22:2 is not output, the third relay k02 is de-energized, the intermediate relay Q1 cannot keep energized, the separating brake signal is fed back to the separating brake command input signal ports X10:4 of the signal terminal row, the output signal ports X20:3 of the signal terminal row output the separating brake command, and the SOA of the separating brake switch lamp is on at the moment.
As shown in fig. 3, the closing switch SOE is closed, a signal is input to a "closing command" input signal port X10:5 of the signal terminal row, a "line test relay closing command" output signal port X22:6 of the signal terminal row sends out a line test relay closing command, as shown in fig. 7, the first relay k0 is powered on, as shown in fig. 4, the normally open contact k0:12 of the first relay k0 is closed, and a signal is fed back to a "line test relay closing command" input signal port X11:0 of the signal terminal row.
As shown in fig. 5, when there is no fault in the signal terminal block, the second relay k24 is energized, the normally closed contact becomes the normally open contact, when there is a fault, the second relay k24 is not energized, the normally closed contact does not change, and the group alarm indicator lamp-H10 is energized.
As shown in fig. 6, the switching ring switch S/G controls whether the fifth relay K03 is powered on or not, so as to change the opening and closing of the contact of the fifth relay K03, and when the fifth relay K03 is powered on, the switching ring logic of the signal terminal row can be matched, and when the fifth relay K03 is not powered on, the switching ring switch S/G can be matched with the switching ring logic of the signal terminal row to perform analog control on the circuit breaker. When the switching ring switch S/G is closed, the coil of the fifth relay k03 is electrified, the contact is dislocated and normally opened, when the internal logic is open loop, when a switching-on command is obtained by the signal terminal row, the signal terminal row X22:4 sends a signal to the coil of the fourth relay k05, the signal terminal row X22:2 has no output, the contact is dislocated after the four relay k05 acts, the contact is dislocated after the intermediate relay Q1 acts to generate a switching-on signal, the intermediate relay Q1 is self-locked, when the signal terminal row obtains a switching-off command, the signal terminal row X22:2 outputs, the third relay k02 is electrified and dislocated, and the intermediate relay Q1 is self-locked and released; when the internal logic is closed loop, when a closing command is obtained by a signal terminal row, a signal is sent to a coil of a fourth relay k05 by a signal terminal row X22:4, the signal terminal row X22:2 is normally output, after the contact is displaced after the fourth relay k05 is operated, after a third relay k02 is operated, the contact is displaced to generate a closing signal, an intermediate relay Q1 is powered, a third relay k02 is normally output by the signal terminal row X22:2 to enable the intermediate relay Q1 to be powered, when a separating command is obtained by the signal terminal row, the signal terminal row X22:2 is not output, the third relay k02 is powered and displaced, and the intermediate relay Q1 is powered.
Utilize the utility model provides a when direct current protection and controlling means teaching aid case trained the teaching, the student knows signal terminal row operating switch's precondition and control principle through operation divide-shut brake switch, cold and hot stand-by switch, realizes two kinds of common operation modes of direct current switch through operation switch closed-loop switch, opens the simulation of ring operation, closed-loop operation promptly to train student's fault judgement, inspection and troubleshooting ability.
The utility model discloses improved maintenance staff's real standard teaching environment, improved staff's teaching training efficiency, provide high-efficient practical training teaching aid for staff's training.
It should be noted that, in the embodiments of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the embodiments, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (2)
1. The utility model provides a direct current protection and controlling means teaching aid case which characterized in that contains: the teaching aid box comprises a teaching aid box body, a power converter, an operation module, a signal feedback unit and a control unit, wherein the power converter, the operation module, the signal feedback unit and the control unit are arranged in the teaching aid box body; the control unit includes: the signal terminal row is connected with the operation module and the signal feedback unit through a circuit to realize analog operation;
the signal terminal row is provided with a plurality of signal terminals and at least comprises:
an input port of a working power supply;
a near control command input signal port;
the 'opening command' input signal port;
a 'closing command' input signal port;
a direct closing command input signal port;
a "cold standby position" input signal port;
a "hot standby position" input signal port;
a switching-on command of a line test relay is input into a signal port;
a 'breaker closing' input signal port;
a 'breaker opening' input signal port;
a 'closing command' output signal port;
the 'opening command' outputs a signal port;
a switching-on command of the line test relay is output to a signal port;
a group alarm output signal port;
a "system ready command" output signal port;
the 'opening command' outputs a signal port;
a 'closing command' output signal port;
the operation module comprises: the system comprises an opening switch SOA, a closing switch SOE, a direct closing switch S23, a cold standby switch S01, a hot standby switch S02, an opening and closing ring switch S/G, a group alarm indicator lamp H10, an opening indicator lamp SOA and a closing indicator lamp SOE;
the switching-off switch SOA is connected to a switching-off command input signal port of the signal terminal row, the switching-off switch SOA is closed, and a switching-off signal command is input to the signal terminal row;
the switching-on switch SOE is connected to a switching-on command input signal port of the signal terminal strip, the switching-off switch SOE is closed, and a switching-on signal command is input to the signal terminal strip;
the direct closing switch S23 is connected to a "direct closing command" input signal port of the signal terminal row, closes the direct closing switch S23, and inputs a direct closing signal command to the signal terminal row;
the cold standby switch S01 is connected to the 'cold standby position' input signal port of the signal terminal strip, and the cold standby switch S01 is closed to disconnect the cold standby signal input signal terminal strip;
the hot standby switch S02 is connected to the "hot standby position" input signal port of the signal terminal strip, closing the hot standby switch S02 and disconnecting the hot standby signal input signal terminal strip;
the group alarm indicator lamp H10 is connected to a group alarm output signal port of the signal terminal strip, and when the signal terminal strip generates fault alarm, the group alarm indicator lamp H10 outputs power supply;
the open-close loop switch S/G is connected to a signal feedback unit;
the brake-off indicator lamp SOA is connected to a brake-off command output signal port of the signal terminal row, and the brake-off indicator lamp SOA is turned on if the signal terminal row outputs a brake-off command;
the switching-on indicating lamp SOE is connected to a switching-on command output signal port of the signal terminal row, and the switching-on indicating lamp SOE is turned on when the signal terminal row outputs a switching-on command;
the signal feedback unit includes: an intermediate relay Q1, a first relay k0, a second relay k24, a third relay k02, a fourth relay k05, and a fifth relay k 03;
the intermediate relay Q1 simulates the action and signals of a breaker, the intermediate relay Q1 is connected in series with a normally open contact of a third relay k02 and a normally closed contact of a fifth relay k03, the normally open contact of the intermediate relay Q1 is connected to a breaker closing input signal port of a signal terminal row to simulate input of a closing signal, and the normally closed contact of the intermediate relay Q1 is connected to a breaker closing input signal port of the signal terminal row to simulate input of a switching-off signal;
the first relay k0 simulates actions and signals of a line test relay, the first relay k0 is connected to a 'line test relay closing command' output signal port of a signal terminal row, and a normally open contact of the first relay k0 is connected to a 'line test relay closing command' input signal port of the signal terminal row to simulate an input line test relay signal;
the second relay k24 simulates the action and signals of a system ready relay, the second relay k24 is connected to a system ready command output signal port of a signal terminal row, and a normally closed contact of the second relay k24 is connected to a group alarm indicator lamp H10;
the third relay k02 simulates a switching-off relay, the anode of the third relay k02 is connected to a switching-off command output signal port of a signal terminal block, and the normally-open contact of the third relay k02 is connected to the coil of the third relay k02 and plays a self-holding role;
the fourth relay k05 simulates a closing relay, the positive electrode of the fourth relay k05 is connected to a closing command output signal port of a signal terminal row, and the normally open contact of the fourth relay k05 is connected to a coil of a third relay k 02;
the fifth relay k03 is connected in series with an open-close ring switch S/G, the normally closed contact of the fifth relay k03 is connected in series with an intermediate relay Q1, and the normally open contact of the fifth relay k03 is connected to the normally open contact of the fourth relay k 05.
2. The dc protection and control device teaching aid box of claim 1, wherein an input terminal of the power converter is connected to an external 220V ac power source to convert 220V ac power to 24V dc power, and an output terminal of the power converter outputs 24V dc power to the control unit and the signal feedback unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207190.XU CN214671190U (en) | 2021-01-26 | 2021-01-26 | Direct current protection and controlling means teaching aid case |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207190.XU CN214671190U (en) | 2021-01-26 | 2021-01-26 | Direct current protection and controlling means teaching aid case |
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| Publication Number | Publication Date |
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| CN214671190U true CN214671190U (en) | 2021-11-09 |
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| CN202120207190.XU Active CN214671190U (en) | 2021-01-26 | 2021-01-26 | Direct current protection and controlling means teaching aid case |
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