CN216311681U - Mechanical holding type high-voltage contactor opening and closing electric control system - Google Patents
Mechanical holding type high-voltage contactor opening and closing electric control system Download PDFInfo
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- CN216311681U CN216311681U CN202122576175.5U CN202122576175U CN216311681U CN 216311681 U CN216311681 U CN 216311681U CN 202122576175 U CN202122576175 U CN 202122576175U CN 216311681 U CN216311681 U CN 216311681U
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Abstract
The utility model discloses a mechanical holding type high-voltage contactor opening and closing electric control system, which adopts the technical scheme that: the direct current part in the cabinet is electrically connected with a 410 switching-on inlet, a 411 tripping inlet, a 409 protection tripping inlet, a first line and a second line, wherein the 410 switching-on inlet is electrically connected with the first line, the 411 tripping inlet is electrically connected with the first line, the second line is electrically connected with the 411 tripping inlet, and the first line and the 411 tripping inlet are both electrically connected with a relay KA; the utility model realizes the on/off control of the double-coil high-voltage contactor by installing the relay and realizes the on/off control of the double-coil mechanical holding type contactor, has low cost, is very simple and practical, is more convenient and quick, and is a very effective technical means.
Description
Technical Field
The utility model relates to the field of high-voltage contactors, in particular to a mechanical holding type high-voltage contactor opening and closing electric control system.
Background
The original high-voltage motor contactor is of a single-coil electric hold type, a control power supply is AC-220V, only one driving signal is needed for control, and a Cupressa CEC/F7.2JY-50A high-voltage contactor is used for controlling the operation of a high-voltage motor. The Cubo high-voltage contactor is controlled in a closing/opening double-coil mechanical holding mode, two driving signals are needed to control operation (closing) and stop (opening) respectively, and a control power supply is DC 220V. The cooper CEC/F7.2JY-50A high voltage contactor cannot be directly applied to start/stop operation control of a high voltage motor.
And the following improved control is needed:
1. an intermediate relay KA (a control power supply is AC220V) is installed in an electric control cabinet of a Cupressa CEC/F7.2JY-50A high-voltage contactor, the relay KA is opposite to a normally open point to conduct a closing loop and control the closing operation of a motor, and the relay KA is opposite to a normally closed point to conduct an opening loop and control the opening stop of the motor.
2. Keeping the original system control wiring mode unchanged, closing a relay KA coil when the system is started, and closing a Cubo high-voltage contactor; when the motor is stopped, the relay KA coil is released, the normally closed point is reset to be connected with a brake separating loop of the Cuber high-voltage contactor, and the motor stops running.
The device is specially designed for transforming a single-coil electric holding high-voltage contactor into a double-coil mechanical holding contactor, only one driving signal is needed to complete the starting and stopping operations of a high-voltage motor, and the problem that a new system and an old system are mutually connected before and after transformation can be thoroughly solved. The system is safe and stable to operate after being transformed, and a very good effect is achieved.
SUMMERY OF THE UTILITY MODEL
In view of the problems mentioned in the background art, the present invention is directed to provide an electric control system for opening and closing a mechanical holding high-voltage contactor, so as to solve the problems mentioned in the background art.
The technical purpose of the utility model is realized by the following technical scheme:
the utility model provides a mechanical holding formula high tension contactor divide-shut brake electrical system, direct current part in the cabinet, electric connection has 410 to close a floodgate entry, 411 tripping operation entry, 409 protection tripping operation entry, first circuit and second circuit on the direct current part in the cabinet, 410 close a floodgate entry with first circuit electric connection, 410 close a floodgate entry with first circuit with be equipped with local link, remote control link and maintenance link between the direct current part in the cabinet, 411 tripping operation entry with first circuit electric connection, the second circuit with 411 tripping operation entry electric connection, first circuit with equal electric connection has relay KA on the 411 tripping operation entry.
By adopting the technical scheme, when the high-voltage motor electric control system controlled by the single-coil contactor is transformed, on the premise of keeping the original overall control mode unchanged, the on/off control of the double-coil high-voltage contactor can be realized only by additionally installing one relay, and the on/off control of the double-coil mechanical holding contactor can be realized only by additionally installing one intermediate relay.
Preferably, a 414 connection piece and a BJT protection trip are electrically connected between the 409 protection trip inlet and the dc part in the cabinet, the 414 connection piece and the BJT protection trip are connected in series, and the BJT protection trip is close to the dc part in the cabinet.
By adopting the technical scheme, the BJT protection tripping can realize the safety protection of the 409 protection tripping inlet, and the power failure treatment which cannot be carried out in time in the protection process is prevented.
Preferably, the second circuit is electrically connected with a TA relay.
By adopting the technical scheme, the TA relay can effectively realize the connection and disconnection function.
Preferably, an HA relay is electrically connected to the 410 closing inlet, and the HA relay is located at one side of the local connection end, the remote control connection end, and the maintenance connection end.
Through adopting above-mentioned technical scheme, the effect that the HA relay can realize the break-make is connected, and the position sets up the connection that can be convenient for local link, remote control link and maintenance link.
Preferably, the connection end of the 411 trip inlet and the first line is located between the local connection end, the remote control connection end and the service connection end and the HA relay.
Through adopting above-mentioned technical scheme, 411 tripping operation entry and the setting of first circuit link can be convenient for realize that dual signal controls adjust.
Preferably, the connection of the second line and the 411 trip inlet is at one end of the relay KA.
Through adopting above-mentioned technical scheme, the setting of second circuit and 411 tripping operation entry wiring end can be convenient for realize the on-off control of relay KA and adjust.
Preferably, a connection point of the first line and the 410 closing inlet is located at one end of the HA relay.
By adopting the technical scheme, the arrangement of the first line and the 410 closing inlet terminal can facilitate the on-off control and adjustment of the HA relay.
In summary, the utility model mainly has the following beneficial effects:
when the high-voltage motor electric control system controlled by the single-coil contactor is transformed, on the premise of keeping the original overall control mode unchanged, the on/off control of the double-coil high-voltage contactor can be realized only by additionally installing a relay, and the on/off control of the double-coil mechanical holding contactor can be realized only by additionally installing an intermediate relay.
Drawings
FIG. 1 is a prior art schematic of the present invention;
fig. 2 is a schematic structural diagram of the improved technique of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-2, a mechanical holding type high-voltage contactor divides closing and opening electric control system, including the interior direct current part of cabinet, electric connection has 410 combined floodgate entry, 411 tripping operation entry, 409 protection tripping operation entry, first circuit and second circuit on the direct current part in the cabinet, 410 combined floodgate entry with first circuit electric connection, 410 combined floodgate entry with first circuit with be equipped with local connection end, remote control link and maintenance link between the interior direct current part of cabinet, 411 tripping operation entry with first circuit electric connection, the second circuit with 411 tripping operation entry electric connection, first circuit with equal electric connection has relay KA on the 411 tripping operation entry.
By adopting the technical scheme, when the high-voltage motor electric control system controlled by the single-coil contactor is transformed, on the premise of keeping the original overall control mode unchanged, the on/off control of the double-coil high-voltage contactor can be realized only by additionally installing one relay, and the on/off control of the double-coil mechanical holding contactor can be realized only by additionally installing one intermediate relay.
In this embodiment, preferably, a 414 connection piece and a BJT protection trip are electrically connected between the 409 protection trip inlet and the dc part in the cabinet, the 414 connection piece and the BJT protection trip are connected in series, and the BJT protection trip is close to the dc part in the cabinet. The effect is that the BJT protection trip can realize the safety protection of the 409 protection trip inlet, and the power failure processing can not be timely carried out in the protection process.
In this embodiment, preferably, a TA relay is electrically connected to the second line. The effect is that the TA relay can effectively realize the on-off connection.
In this embodiment, preferably, an HA relay is electrically connected to the 410 closing inlet, and the HA relay is located on one side of the local connection end, the remote control connection end, and the maintenance connection end. The effect does, and the effect that HA relay can realize the break-make is connected, and the position sets up the connection that can be convenient for local link, remote control link and maintenance link.
In this embodiment, preferably, the connection end between the 411 trip inlet and the first line is located between the local connection end, the remote control connection end, and the service connection end, and the HA relay. The effect does, 411 tripping operation entry and the setting of first circuit link can be convenient for realize that dual signal controls adjust.
In this embodiment, preferably, the connection between the second line and the 411 trip inlet is located at one end of the relay KA. The effect is, the setting of second circuit and 411 tripping operation entry terminal can be convenient for realize the on-off control of relay KA and adjust.
In this embodiment, preferably, a connection point of the first line and the 410 closing inlet is located at one end of the HA relay. The effect is that the arrangement of the first circuit and the 410 closing inlet terminal can facilitate the on-off control and adjustment of the HA relay.
The use principle and the advantages are as follows:
an intermediate relay KA (a control power supply is AC220V) is additionally arranged in an electric control cabinet of a Cuber CEC/F7.2JY-50A high-voltage contactor, the relay KA is communicated with a normally open point 410 closing inlet to control the closing operation of a motor, and the relay KA is communicated with a normally closed point 411 tripping inlet to control the opening and stopping of the motor. Keeping the overall control wiring mode of the old system unchanged, closing an intermediate relay KA coil when the system is started, and closing a Cuber high-voltage contactor; when the motor is stopped, the intermediate relay KA coil is released, the normally closed point is reset to be connected with the 411 tripping inlet of the Cuber high-voltage contactor, the motor stops running, and the auxiliary normally open contact of the Cuber CEC/F7.2JY-50A high-voltage contactor is used as a self-protection point in a control loop, so that the actual running state of the high-voltage motor can be truly reflected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a machinery keeps formula high tension contactor divide-shut brake electrical system, includes direct current part in the cabinet, its characterized in that: the switch-on switch-off protection device comprises a cabinet and is characterized in that a direct current part in the cabinet is electrically connected with a switch-on inlet 410, a trip inlet 411, a protection trip inlet 409, a first line and a second line, the switch-on inlet 410 is electrically connected with the first line, a local connecting end, a remote control connecting end and an overhauling connecting end are arranged between the direct current part in the cabinet and the first line, the trip inlet 411 is electrically connected with the first line, the second line is electrically connected with the trip inlet 411, and the first line and the trip inlet 411 are electrically connected with a relay KA.
2. The mechanical holding type high-voltage contactor opening and closing electric control system according to claim 1, characterized in that: and a 414 connecting piece and a BJT protection trip are electrically connected between the 409 protection trip inlet and the direct current part in the cabinet.
3. The mechanical holding type high-voltage contactor opening and closing electric control system according to claim 2, characterized in that: the 414 coupler and the BJT protection trip are connected in series, and the BJT protection trip is close to the DC part in the cabinet.
4. The mechanical holding type high-voltage contactor opening and closing electric control system according to claim 1, characterized in that: and the second line is electrically connected with a TA relay.
5. The mechanical holding type high-voltage contactor opening and closing electric control system according to claim 1, characterized in that: and the 410 closing inlet is electrically connected with an HA relay, and the HA relay is positioned at one side of the local connecting end, the remote control connecting end and the overhaul connecting end.
6. The mechanical holding type high-voltage contactor opening and closing electric control system according to claim 5, characterized in that: the 411 trip inlet and the connection end of the first line are located between the local connection end, the remote control connection end and the overhaul connection end and the HA relay.
7. The mechanical holding type high-voltage contactor opening and closing electric control system according to claim 1, characterized in that: the connection of the second line and the 411 tripping inlet is arranged at one end of the relay KA.
8. The mechanical holding type high-voltage contactor opening and closing electric control system according to claim 6, characterized in that: and the connection point of the first line and the 410 closing inlet is positioned at one end of the HA relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576175.5U CN216311681U (en) | 2021-10-26 | 2021-10-26 | Mechanical holding type high-voltage contactor opening and closing electric control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576175.5U CN216311681U (en) | 2021-10-26 | 2021-10-26 | Mechanical holding type high-voltage contactor opening and closing electric control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216311681U true CN216311681U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122576175.5U Active CN216311681U (en) | 2021-10-26 | 2021-10-26 | Mechanical holding type high-voltage contactor opening and closing electric control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216311681U (en) |
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2021
- 2021-10-26 CN CN202122576175.5U patent/CN216311681U/en active Active
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