CN217445272U - Secondary control circuit additionally provided with time delay device - Google Patents
Secondary control circuit additionally provided with time delay device Download PDFInfo
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- CN217445272U CN217445272U CN202221102775.6U CN202221102775U CN217445272U CN 217445272 U CN217445272 U CN 217445272U CN 202221102775 U CN202221102775 U CN 202221102775U CN 217445272 U CN217445272 U CN 217445272U
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Abstract
The utility model provides an install delay unit's secondary control circuit additional for the control of power cabinet, star point cabinet, isolation cabinet and water resistance cabinet, secondary control circuit includes isolation cabinet control circuit body, first time relay, second time relay and second circuit breaker auxiliary contact. And a time relay is connected into the secondary control loop, and the time relay delays for 1-2S switching-off after being electrified, so that the water resistance cabinet PLC can acquire simultaneous switching-on signals of the power supply cabinet, the star point cabinet and the isolation cabinet in 1-2S, and the rising condition of the water resistance cabinet PLC driving polar plate is met, so that the polar plate is driven to rise and reset, the whole starting process is completed, and preparation work is prepared for starting next time.
Description
Technical Field
The utility model relates to a secondary circuit field especially relates to install delay unit's secondary control circuit additional.
Background
In some synchronous motors, because the voltage is large and the starting is difficult, the water resistance cabinet needs to be connected in series for starting with reduced voltage, namely, in the process of starting a host, when a polar plate of the water resistance cabinet descends to a lower limit position, a star point cabinet closing signal is sent, meanwhile, the isolation cabinet is immediately connected and tripped, the water resistance cabinet is switched out of a primary loop, the starting process is completed, in the switching process of the star point cabinet and the isolation cabinet, the polar plate of the water resistance cabinet can automatically rise, and the state before the original starting is reset, so that the next starting is prepared. However, the automatic resetting of the polar plate of the water resistance cabinet requires that the water resistance cabinet PLC receives the simultaneous switching-on signal of the power cabinet, the star point cabinet and the isolation cabinet, but in practice, the water resistance cabinet PLC cannot acquire the simultaneous switching-on signal of the power cabinet, the star point cabinet and the isolation cabinet, and cannot drive the polar plate to rise and reset.
Therefore, it is necessary to provide a secondary control circuit with a delay device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective installs delay unit additional in secondary loop control, aims at solving above-mentioned water and hinders cabinet PLC and can not gather power cabinet, isolation cabinet, star point cabinet combined floodgate signal simultaneously to can not order about the technical problem that water hinders the ascending reset of cabinet polar plate.
In order to achieve the purpose, the utility model provides a secondary control circuit provided with a time delay device, which is used for controlling a power cabinet, a star point cabinet, an isolation cabinet and a water resistance cabinet, and comprises an isolation cabinet control circuit body, a first time relay, a second time relay and a second circuit breaker auxiliary contact; the isolation cabinet control circuit body comprises a switch circuit module, a first control circuit, a second control circuit, a closing circuit module and a breaking circuit module; the switching circuit module comprises two output ends, wherein the first output end is connected with the switching-on circuit module in series, and the second output end is connected with the switching-off circuit module in series; the first control circuit is connected between the input end and the second output end of the switch circuit module in parallel, and the first time relay is connected with the first control circuit in parallel; the second control circuit is connected with the switch circuit module in parallel, and the second time relay and the second breaker auxiliary contact are connected on the second control circuit in series.
Furthermore, the isolation cabinet control circuit body also comprises a signal circuit module; the signal circuit module comprises a first breaker auxiliary contact and a signal lamp, and the first breaker auxiliary contact is connected with the signal lamp in series; the signal circuit module is connected with the second control circuit and the switch circuit module in parallel.
Furthermore, the isolation cabinet control circuit body further comprises a clock circuit module, the clock circuit module comprises a clock circuit, and the clock circuit is connected to the whole secondary control circuit.
Further, the switching circuit module includes a first switch and a second switch; the first switch and the second switch are respectively provided with four gears, and the input end of the second switch is connected with the gears from the first gear to the second gear of the first switch in series; the output ends of the gears from the first to the second of the second switch are connected with the switching-on circuit module in series, and the output ends of the gears from the third to the fourth of the second switch are connected with the switching-off circuit module in series; the gears from the third to the fourth of the first switch are connected with a background computer, one of the gears is connected with the output ends of the gears from the first to the second of the second switch in a parallel connection mode, and the other gear is connected with the output ends of the gears from the third to the fourth of the second switch.
Further, the second control circuit comprises a second controller; wherein the second controller is connected in series with the second breaker auxiliary contact and the second time relay.
Further, the switching-on circuit module comprises a third controller and a switching-on coil; wherein the third controller is connected in series with the closing coil.
Further, the opening circuit module comprises an opening coil.
The utility model has the advantages that: and a time relay is connected into the secondary control loop, and the time relay delays for 1-2S switching-off after being electrified, so that the water resistance cabinet PLC can acquire simultaneous switching-on signals of the power supply cabinet, the star point cabinet and the isolation cabinet in 1-2S, and the rising condition of the water resistance cabinet PLC driving polar plate is met, so that the polar plate is driven to rise and reset, the whole starting process is completed, and preparation work is prepared for starting next time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a block diagram of a secondary control loop with an additional delay device according to the present invention;
fig. 2 is a schematic circuit diagram of the secondary control loop of the delay device of the present invention.
The reference numbers illustrate: 1. a first switch; 2. a second switch; 3. a third controller; 4. a closing coil; 5. a background computer; 6. a brake separating coil; 7. a first controller; 8. a first time relay; 9. a second controller; 10. a second circuit breaker auxiliary contact; 11. a second time relay; 12. a first circuit breaker auxiliary contact; 13. a signal lamp; 14. a clock circuit.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Moreover, the technical solutions of the present invention between the various embodiments can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are combined and contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the present invention is not within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a secondary control circuit with a delay device, for controlling a power cabinet, a star point cabinet, an isolation cabinet and a water resistance cabinet, wherein the secondary control circuit comprises an isolation cabinet control circuit body, a first time relay 8, a second time relay 11 and a second circuit breaker auxiliary contact 10; the isolation cabinet control circuit body comprises a switch circuit module 100, a closing circuit module 200, an opening circuit module 300, a first control circuit 400 and a second control circuit 500; the switching circuit module 100 includes two output terminals, a first output terminal is connected in series with the switching-on circuit module 200, and a second output terminal is connected in series with the switching-off circuit module 300; the first control circuit 400 is connected in parallel between the input end and the second output end of the switch circuit module 100, and the first time relay 8 is connected in parallel with the first control circuit 400; the second control circuit 400 is connected in parallel with the switching circuit module 100, and the second time relay 11 and the second breaker auxiliary contact 10 are connected in series to the second control circuit 500.
In this example, when the first switch 1 of the switching circuit module 100 is shifted to the second position, and the second switch 2 is empty, the closing coil 4 in the closing module 200 is in a power-off state, the third controller 3 is in a closing state, and at this time, the water resistance cabinet works, and the pole plate of the water resistance cabinet is in a descending process. When the pole plate of the water resistance cabinet reaches the lower limit, the first controller 7 in the first control circuit 400 is switched off, and after the first time relay 8 is powered on and delays for 1-2 seconds, the switching-off coil 6 in the switching-off circuit module 300 is switched off; when the second controller 9 in the second control circuit 500 is switched on, the second breaker auxiliary contact 10 is closed, and the second time relay 11 is switched on. At this time, after the second time relay 11 is powered on and the time is delayed for 1 to 2 seconds, the second breaker auxiliary contact 10 is closed, and the opening coil 6 in the opening circuit module 300 is opened in a linkage tripping manner. And within 1-2 seconds of the time delay of the first time relay 8 and the second time relay 11, the water resistance cabinet PLC simultaneously acquires a power cabinet closing signal, a star point cabinet closing signal, an isolation cabinet closing signal and 1-2 seconds, the lower limit starts to recover to the upper limit, the whole starting process is completed, and preparation work is prepared for starting the machine next time.
Further, the isolation cabinet control circuit body further comprises a signal circuit module 600; the signal circuit module 600 comprises a first breaker auxiliary contact 10 and a signal lamp 13, wherein the first breaker auxiliary contact 10 is connected with the signal lamp 13 in series; the signal circuit module 600 is connected in parallel with the second control circuit 500 and the switch circuit module 100.
The first breaker auxiliary contact 10 is connected in series with the signal lamp 13, and when the first breaker auxiliary contact 10 is electrified, the signal lamp 13 is lighted.
Further, the isolation cabinet control circuit body further comprises a clock circuit module 700, the clock circuit module 700 comprises a clock circuit 14, and the clock circuit 14 is connected to the whole secondary control circuit; the clock circuit 14 is used as a control signal for coordinating the components in the secondary control circuit.
Further, the switching circuit module 100 includes a first switch 1 and a second switch 2; the first switch 1 and the second switch 2 are respectively provided with four gears, and the input end of the second switch 2 is connected with the gears I to II of the first switch 1 in series; the output ends of the gears from the first to the second of the second switch 2 are connected in series with the switching-on circuit module 200, and the output ends of the gears from the third to the fourth of the second switch 2 are connected in series with the switching-off circuit module 300; the gears from the third to the fourth of the first switch 1 are connected with a background computer 5, one of the gears is connected with the output ends of the gears from the third to the fourth of the second switch, and the other gear is connected with the output ends of the gears from the third to the fourth of the second switch in a parallel connection mode.
The input end of the second switch 2 is connected with the gears from the first to the second of the first switch 1 in series, the gears from the first to the second of the first switch 1 can control the second switch 2 to work in an electrified way, the output ends of the gears from the first to the second of the second switch 2 are connected with the switching-on circuit module 200 in series, the output ends of the gears from the third to the fourth of the second switch 2 are connected with the switching-off circuit module 300 in series, the gears from the first to the second of the second switch 2 can control the third controller 3 and the switching-on coil 4 to work in an electrified way, the gears from the third to the fourth of the first switch 1 are connected with the background computer 5, one gear from the first to the second of the second switch 2 is connected with the output end of the gear from the third to the fourth of the second switch 2 in a parallel way, the other gear from the remote gear from the third to the fourth of the second switch 2 is connected with the output end of the second switch 2, when the switch position of the first switch 1 is adjusted to the gears from the third to the fourth, the working states of the closing coil 4 and the opening coil 6 can be controlled by a remote background computer 5 in a manner of sending instructions.
Further, the second control circuit 500 includes a second controller 9; wherein the second controller 9 is connected in series with the second breaker auxiliary contact 10 and the second time relay 11. When the second controller 9 is powered on, the second time relay 11 is powered on and controls the on-off state of the second breaker auxiliary contact 10 through time delay.
Further, the closing circuit module 200 includes a third controller 3 and a closing coil 4; wherein, the third controller 3 is connected in series with the closing coil 4. When the third controller 3 is powered on, the closing coil 4 is powered on to work in an interlocking mode.
Further, the opening circuit module 300 includes an opening coil 6.
Among the above technical scheme of the utility model, above only do the utility model discloses a preferred embodiment, not consequently the restriction the utility model discloses a patent range, all are in the utility model discloses a under the technical concept, utilize the equivalent structure transform of doing of the content of the description and the attached drawing, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection scope.
Claims (7)
1. A secondary control circuit provided with a time delay device is used for controlling a power supply cabinet, a star point cabinet, an isolation cabinet and a water resistance cabinet, and is characterized in that the secondary control circuit comprises an isolation cabinet control circuit body, a first time relay, a second time relay and a second circuit breaker auxiliary contact; the isolation cabinet control circuit body comprises a switch circuit module, a first control circuit, a second control circuit, a closing circuit module and a breaking circuit module; the switching circuit module comprises two output ends, wherein the first output end is connected with the switching-on circuit module in series, and the second output end is connected with the switching-off circuit module in series; the first control circuit is connected between the input end and the second output end of the switch circuit module in parallel, and the first time relay is connected with the first control circuit in parallel; the second control circuit is connected with the switch circuit module in parallel, and the second time relay and the second breaker auxiliary contact are connected on the second control circuit in series.
2. The secondary control circuit with the delay device as claimed in claim 1, wherein the main body of the control circuit of the isolation cabinet further comprises a signal circuit module; the signal circuit module comprises a first breaker auxiliary contact and a signal lamp, and the first breaker auxiliary contact is connected with the signal lamp in series; the signal circuit module is connected with the second control circuit and the switch circuit module in parallel.
3. The secondary control circuit provided with the delay device as claimed in claim 1, wherein the isolation cabinet control circuit body further comprises a clock circuit module, the clock circuit module comprises a clock circuit, and the clock circuit is connected to the whole secondary control circuit.
4. The secondary control circuit with the delay device as claimed in claim 1, wherein the switch circuit module comprises a first switch and a second switch; the first switch and the second switch are provided with four gears, and the input end of the second switch is connected with the gears from the first gear to the second gear of the first switch in series; the output ends of the gears from the third to fourth of the second switch are connected with the switching-on circuit module in series, and the output ends of the gears from the third to fourth of the second switch are connected with the switching-off circuit module in series; the gears from the third to the fourth of the first switch are connected with a background computer, one of the gears is connected with the output ends of the gears from the first to the second of the second switch in a parallel connection mode, and the other gear is connected with the output ends of the gears from the third to the fourth of the second switch.
5. The secondary control circuit with a delay device as claimed in claim 1, wherein the second control circuit comprises a second controller; wherein the second controller is connected in series with the second breaker auxiliary contact and the second time relay in the second control circuit.
6. The secondary control circuit with the delay device as claimed in claim 1, wherein the switching-on circuit module includes a third controller and a switching-on coil; the third controller is connected with the closing coil in series.
7. The secondary control circuit with the delay device as claimed in claim 1, wherein the switching-off circuit module comprises a switching-off coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221102775.6U CN217445272U (en) | 2022-05-09 | 2022-05-09 | Secondary control circuit additionally provided with time delay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221102775.6U CN217445272U (en) | 2022-05-09 | 2022-05-09 | Secondary control circuit additionally provided with time delay device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217445272U true CN217445272U (en) | 2022-09-16 |
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ID=83220088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221102775.6U Active CN217445272U (en) | 2022-05-09 | 2022-05-09 | Secondary control circuit additionally provided with time delay device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217445272U (en) |
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2022
- 2022-05-09 CN CN202221102775.6U patent/CN217445272U/en active Active
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