CN212627746U - Phase-changing device of high-voltage motor mounted on handcart type switch cabinet - Google Patents
Phase-changing device of high-voltage motor mounted on handcart type switch cabinet Download PDFInfo
- Publication number
- CN212627746U CN212627746U CN202021549083.7U CN202021549083U CN212627746U CN 212627746 U CN212627746 U CN 212627746U CN 202021549083 U CN202021549083 U CN 202021549083U CN 212627746 U CN212627746 U CN 212627746U
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- Prior art keywords
- vacuum contactor
- relay
- handcart
- transistor sensor
- switch cabinet
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Abstract
The utility model relates to a motor control is electric, especially a phase change device who installs the high tension motor at handcart-type cubical switchboard. The handcart type switch cabinet comprises a handcart type switch cabinet, a first vacuum contactor and a second vacuum contactor, wherein the first vacuum contactor and the second vacuum contactor are respectively installed on two sides of the upper part of a chassis handcart; the connection structure of the control loop of the second vacuum contactor is the same as that of the first vacuum contactor; and a mechanical interlocking mechanism is arranged between the first vacuum contactor and the second vacuum contactor. During maintenance, only the main loop power line needs to be removed, the control line aviation plug needs to be pulled out, the chassis trolley is pulled outwards, the high-voltage cabinet is operated and maintained outside the body, operation and maintenance are more convenient, and maintenance efficiency is improved.
Description
Technical Field
The utility model relates to a motor control is electric, especially a phase change device who installs the high tension motor at handcart-type cubical switchboard.
Background
At present, the stator commutation device of the alternating-current high-voltage motor is installed in a stator commutation cabinet, the cabinet body space is narrow, the components are fixedly installed separately, the maintenance and the replacement are inconvenient, the maintenance and the replacement are time-consuming and labor-consuming, and the efficiency is low. The control circuit of the phase changing device adopts terminal connection, the process is complicated, the looseness is easy to cause electrical faults, and the normal operation of equipment is greatly limited under the above conditions.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem and providing an install the commutation device at the high-tension motor of handcart-type cubical switchboard, the easy access.
The utility model provides a technical scheme that its technical problem adopted is:
a phase change device of a high-voltage motor installed on a handcart type switch cabinet comprises a handcart type switch cabinet, a first vacuum contactor and a second vacuum contactor, wherein the first vacuum contactor and the second vacuum contactor are used for controlling the motor to rotate forwards and reversely; the connection structure of the control loop of the second vacuum contactor is the same as that of the first vacuum contactor; and a mechanical interlocking mechanism is arranged between the first vacuum contactor and the second vacuum contactor.
Adopt above-mentioned technical scheme the utility model discloses compare with prior art, beneficial effect is:
during maintenance, only the main loop power line needs to be removed, the control line aviation plug is pulled out, the chassis handcart ground lock is opened, the chassis handcart is pulled outwards, the chassis handcart is moved out of the high-voltage cabinet body on the guide rail by utilizing the idler wheels of the chassis handcart, the high-voltage cabinet body is operated and maintained externally, the operation and maintenance are more convenient, and the maintenance efficiency is improved.
Further, the utility model discloses an optimization scheme is:
the base of the first vacuum contactor is provided with a first transistor sensor, the first transistor sensor is fixedly connected with the base through a support, the first transistor sensor is induced by a vertical plate, the vertical plate is arranged on a cross beam of the transmission mechanism, the first transistor sensor is electrically connected with the relay module through a first aviation plug, and the first transistor sensor is used for inducing the on-off state of a movable contact rod of the first vacuum contactor; the bottom of the second vacuum contactor is provided with a second transistor sensor, the mounting structure of the second transistor sensor is the same as that of the first transistor sensor, the second transistor sensor is electrically connected with the relay module through a second aviation plug, and the second transistor sensor is used for sensing the opening and closing state of a movable contact rod of the second vacuum contactor.
The relay module comprises an alternating current power supply module, a switching direct current power supply module, a first relay, a second relay, a third relay and a fourth relay, the alternating current power supply module is electrically connected with the switching direct current power supply module, the first relay, the second relay, the third relay and the fourth relay are powered by the switching direct current power supply module, a coil of the first relay and a coil of the second relay are connected in parallel and controlled by a first transistor sensor, a coil of the third relay and a coil of the fourth relay are connected in parallel and controlled by a second transistor sensor, a first relay contact provides state feedback of switching-on and switching-off of the first vacuum contactor for a peripheral control system, and the third relay provides state feedback of switching-on and switching-off of the second vacuum contactor for the peripheral control system; the contact of the second relay is connected with the auxiliary contact of the first vacuum contactor in a redundant mode, and the contact of the fourth relay is connected with the auxiliary contact of the second vacuum contactor in a redundant mode.
The first vacuum contactor and the second vacuum contactor are respectively provided with arc suppression devices, each arc suppression device comprises an arc suppression capacitor, the arc suppression capacitors are installed on an arc suppression circuit board, the arc suppression circuit board is fixedly connected with the base, and the closing coils are connected with the arc suppression capacitors in parallel.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a vacuum contactor and chassis handcart according to an embodiment of the present invention;
fig. 3 is an electrical schematic diagram of a relay module according to an embodiment of the present invention.
In the figure: a handcart type switch cabinet 1; a handcart room 1-1; a control instrument room 1-2; 1-3 of a slide rail; wire inlet holes 1-4; 1-5 of wire outlet holes; leading the main loop into a wire 1-6; a main loop outgoing line 1-7; a chassis handcart 2; 2-1 of a wheel; 2-2 of handcart ground lock; a first high-voltage vacuum contactor 3; 3-1 of a base; an insulating frame 3-2; a transmission mechanism 3-3; 3-4 of a cross beam; 3-5 parts of a vacuum arc-extinguishing chamber; 3-6 of the rear terminal row; auxiliary contacts 3-7; front terminal rows 3-8; a second high-voltage vacuum contactor 4; a first aviation plug 5; plug end 5-1; socket end 5-2; a second aviation plug 6; a relay module 7; an alternating current power supply module 7-1; a direct current power supply module 7-2; a first relay 7-3; a second relay 7-4; a third relay 7-5; a fourth relay 7-6; a first transistor sensor 8; a support 8-1; a vertical plate 8-2; an arc-extinguishing capacitor 9; an arc-extinguishing circuit board 9-1; a mechanical interlock mechanism 10.
Detailed Description
The present invention will be further described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, the phase commutation device of the high-voltage motor installed in the handcart-type switch cabinet in the embodiment is composed of a handcart-type switch cabinet 1, a chassis handcart 2, a first high-voltage vacuum contactor 3, a second high-voltage vacuum contactor 4, a first aviation plug 5, a second aviation plug 6 and the like. The handcart type switch cabinet comprises a handcart room 1-1, a control instrument room 1-2 and the like, wherein the control instrument room 1-2 is positioned above the handcart room 1-1, a partition plate is arranged between the control instrument room 1-2 and the handcart room 1-1, the inner end of a bottom plate of the handcart room 1-1 is provided with a wire inlet hole 1-4 and a wire outlet hole 1-5, and two sides of the bottom plate are provided with slide rails 1-3. The chassis handcart 2 is arranged in a handcart room 1-1, two wheels 2-1 are respectively arranged on two sides of the chassis handcart 2, the wheels 2-1 are matched with slide rails 1-3, and the chassis handcart 2 can be pulled out of the handcart type switch cabinet 1 from the handcart room 1-1.
The chassis handcart 2 upper portion both sides respectively vertically install the same first vacuum contactor 3 and the second vacuum contactor 4 of structure, and first vacuum contactor 3 and second vacuum contactor 4 are five utmost point high-voltage vacuum contactors, and first vacuum contactor 3 is used for controlling high-voltage motor's corotation, and second vacuum contactor 4 is used for controlling high-voltage motor's reversal. The first vacuum contactor 3 comprises a base 3-1, an insulating frame 3-2, a transmission mechanism 3-3, a beam 3-4, a vacuum arc-extinguishing chamber 3-5, a rear terminal row 3-6, an auxiliary contact 3-7, a front terminal row 3-8, a closing coil and the like. A base 3-1 is connected with a chassis handcart 2 through bolts, an insulating frame 3-2 is arranged at the upper part of the base 1, five vacuum arc-extinguishing chambers 3-5 are longitudinally arranged on the insulating frame 3-2, a beam 3-4 of a transmission mechanism 3-3 below the insulating frame 3-2 is hinged with a movable contact rod of the vacuum arc-extinguishing chamber 3-5, and the front end and the rear end of the base 3-1 are respectively provided with a front terminal row 3-8 and a rear terminal row 3-6. The transmission mechanism 3-3 of the first vacuum contactor 3 and the transmission mechanism 3-3 of the second vacuum contactor 4 are provided with a transmission rod mechanical interlocking mechanism 10, and the transmission rod mechanical interlocking mechanism 10 ensures that only one of the first vacuum contactor 3 and the second vacuum contactor 4 is attracted. Main loop incoming lines 1-6 of power lines are led in from incoming holes 1-4 of a handcart room 1-1, the main loop incoming lines 1-6 are respectively and electrically connected with wiring boards of static contact rods of a first vacuum contactor 3 and a second vacuum contactor 4, main loop outgoing lines 1-7 are respectively and electrically connected with wiring boards of movable contact rods of the first vacuum contactor 3 and the second vacuum contactor 4, the main loop outgoing lines 1-7 are led out from outgoing holes 1-5, and the main loop incoming lines 1-6 and the main loop outgoing lines 1-7 are flexible wires. The control line of the control loop of the first vacuum contactor 3 is electrically connected with the control module in the control instrument room 1-2 through the front terminal row 3-8 and the first aviation plug 5, the first aviation plug 5 is composed of a plug end 5-1 and a socket end 5-2, and the first aviation plug 5 is an 11-pin plug. The control line of the control loop of the second vacuum contactor 4 is electrically connected with the control module in the control instrument room 1-2 through the front terminal row 3-8 and the second aviation plug 6, and the second aviation plug 6 has the same structure as the first aviation plug 5. The aviation plug is adopted to replace a wiring terminal, so that the contact is more reliable, and the maintenance and the replacement are safer and more convenient.
The base of the first vacuum contactor 3 is provided with a first transistor sensor 8, the first transistor sensor 8 is fixedly connected with the base 3-1 through a support 8-1, the first transistor sensor 8 is induced by a vertical plate 8-2, the vertical plate 8-2 is installed on a cross beam 3-4 of the transmission mechanism 3-3, the transistor sensor 8 is electrically connected with a relay module 7 through a first aviation plug 5, the relay module 7 is installed in a control instrument room 1-2, and the first transistor sensor 8 is used for inducing the on-off state of a movable contact rod of the first vacuum contactor 3. The bottom of the second vacuum contactor 4 is provided with a second transistor sensor, the mounting structure of the second transistor sensor is the same as that of the first transistor sensor 8, the second transistor sensor is electrically connected with the relay module 7 through a second aviation plug 6, and the second transistor sensor is used for sensing the opening and closing state of a movable contact rod of the second vacuum contactor 4. The aviation plug is adopted to replace a wiring terminal, so that the contact is more reliable, and the maintenance and the replacement are safer and more convenient. The aviation plug is applied to prevent the control circuit from loosening caused by vibration, and the running reliability of the device is improved.
The relay module 7 (shown in figure 3) is composed of an alternating current power supply module 7-1, a switching direct current power supply module 7-2, a first relay 7-3, a second relay 7-4, a third relay 7-5, a fourth relay 7-6 and the like, wherein the model of the first relay 7-3 is ZJ1-1, the model of the second relay 7-4 is ZJ1-2, the model of the third relay 7-5 is ZJ2-1, and the model of the fourth relay 7-6 is ZJ 2-2. The alternating current power supply module 7-1 is electrically connected with the switch direct current power supply module 7-2, the first relay 7-3, the second relay 7-4, the third relay 7-5 and the fourth relay 7-6 are supplied with power by the switch direct current power supply module 7-2, a coil of the first relay 7-3 and a coil of the second relay 7-4 are connected in parallel and controlled by the first transistor sensor 8, a coil of the third relay 5 and a coil of the fourth relay 6 are connected in parallel and controlled by the second transistor sensor, a contact of the first relay 7-3 provides state feedback of switching on and switching off of the first vacuum contactor 3 for a peripheral control system, and the third relay 7-5 provides state feedback of switching on and switching off of the second vacuum contactor 4 for the peripheral control system; the contact points of the second relay 7-4 are redundantly connected with the auxiliary contacts 3-7 of the first vacuum contactor 3, and the contact points of the fourth relay 7-6 are redundantly connected with the auxiliary contacts 3-7 of the second vacuum contactor 4. The transistor sensor and the intermediate relay are electrically connected with an alternating current power supply through a switching power supply, so that the voltage of the transistor sensor and the intermediate relay is constant. The non-contact control channel of the transistor sensor and the contact control channel of the auxiliary contact are mutually redundant, so that the reliable and safe operation of the device is well ensured. In the 20 millisecond phase converter attracting process, the transistor sensor and the intermediate relay are utilized, the opening and closing state of the phase converter can be accurately judged through distance detection, the electric linkage is executed, and the purpose of non-contact control is achieved.
The first vacuum contactor 3 and the second vacuum contactor 4 are respectively provided with an arc extinction device 9, the arc extinction device 9 is composed of an arc extinction capacitor 9-1, an arc extinction circuit board 9-2 and the like, the arc extinction capacitor 9-1 is installed on the arc extinction circuit board 9-2, the arc extinction circuit board 9-2 is fixedly connected with the base 3-1, and closing coils of the first vacuum contactor 3 and the second vacuum contactor 4 are respectively connected with the corresponding arc extinction capacitors 9-1 in parallel. When the first vacuum contactor 3 and the second vacuum contactor 4 are switched on, the current is larger at the beginning of the power-on of the switching-on coil, after the switching-on, in order to avoid the large current from burning the coil, the large current is cut off rapidly by using the auxiliary contact, the auxiliary contact is extremely easy to burn by the electric arc generated when the current is cut off, the arc light is large when the auxiliary contact is broken, so that the service life of an electric element is shortened, and the electric arc is extremely easy to damage, and the arc extinguishing device adopts a capacitor element to well absorb the breaking overvoltage, thereby avoiding the generation. The arc extinction device 9 prolongs the service cycle of the electric elements and makes up for the defects of the traditional design.
The utility model discloses the mandatory mechanical interlocking who increases on electric interlocking's basis only allows a high-pressure vacuum contactor actuation under any circumstance, and fundamentally has stopped just, the alternate possibility that takes place the short circuit accident of high pressure major loop power that two high-pressure vacuum contactor two high-pressure vacuum contactors actuation caused simultaneously. During maintenance, the chassis handcart 2 is pulled outwards only by removing the main loop power line, pulling out the control line aviation plug and opening the handcart ground lock 2-2 of the chassis handcart 2, and the chassis handcart 2 is moved out of the high-voltage cabinet body on the sliding rail 1-3 by using the roller 2-1 of the chassis handcart 2, so that the operation and maintenance are convenient.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (4)
1. The utility model provides an install high tension motor's of handcart-type cubical switchboard commutation device, includes handcart-type cubical switchboard, first vacuum contactor and the second vacuum contactor of control motor corotation and reversal, handcart indoor mounting chassis handcart of handcart-type cubical switchboard, the wheel of chassis handcart and the internal guide rail cooperation of cabinet, its characterized in that: a first vacuum contactor and a second vacuum contactor are respectively installed on two sides of the upper part of the chassis handcart, a main loop incoming line and a main loop outgoing line of a power line are respectively and electrically connected with wiring boards of the first vacuum contactor and the second vacuum contactor, and a control line of a control loop of the first vacuum contactor is electrically connected with a control module in a control instrument room through a front terminal row and a first aviation plug; the connection structure of the control loop of the second vacuum contactor is the same as that of the first vacuum contactor; and a mechanical interlocking mechanism is arranged between the first vacuum contactor and the second vacuum contactor.
2. The phase commutation device of a high-voltage motor installed in a handcart type switch cabinet according to claim 1, characterized in that: the base of the first vacuum contactor is provided with a first transistor sensor, the first transistor sensor is fixedly connected with the base through a support, the first transistor sensor is induced by a vertical plate, the vertical plate is arranged on a cross beam of the transmission mechanism, the transistor sensor is electrically connected with a relay module through a first aviation plug, the relay module is arranged in a control instrument chamber of the handcart type switch cabinet, and the first transistor sensor is used for inducing the on-off state of a movable contact rod of the first vacuum contactor; the bottom of the second vacuum contactor is provided with a second transistor sensor, the mounting structure of the second transistor sensor is the same as that of the first transistor sensor, the second transistor sensor is electrically connected with the relay module through a second aviation plug, and the second transistor sensor is used for sensing the opening and closing state of a movable contact rod of the second vacuum contactor.
3. The phase commutation device of a high-voltage motor installed in a handcart type switch cabinet according to claim 1, characterized in that: the relay module comprises an alternating current power supply module, a switching direct current power supply module, a first relay, a second relay, a third relay and a fourth relay, the alternating current power supply module is electrically connected with the switching direct current power supply module, the first relay, the second relay, the third relay and the fourth relay are powered by the direct current power supply module, a coil of the first relay and a coil of the second relay are connected in parallel and controlled by a first transistor sensor, a coil of the third relay and a coil of the fourth relay are connected in parallel and controlled by a second transistor sensor, a contact of the first relay provides state feedback of switching-on and switching-off of the first vacuum contactor for a peripheral control system, and a contact of the third relay provides state feedback of switching-on and switching-off of the second vacuum contactor for the peripheral control system; the contact of the second relay is connected with the auxiliary contact of the first vacuum contactor in a redundant mode, and the contact of the fourth relay is connected with the auxiliary contact of the second vacuum contactor in a redundant mode.
4. The phase commutation device of a high-voltage motor installed in a handcart type switch cabinet according to claim 1, characterized in that: the first vacuum contactor and the second vacuum contactor are respectively provided with arc suppression devices, each arc suppression device comprises an arc suppression capacitor, the arc suppression capacitors are installed on an arc suppression circuit board, the arc suppression circuit board is fixedly connected with the base, and the closing coils are connected with the arc suppression capacitors in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021549083.7U CN212627746U (en) | 2020-07-30 | 2020-07-30 | Phase-changing device of high-voltage motor mounted on handcart type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021549083.7U CN212627746U (en) | 2020-07-30 | 2020-07-30 | Phase-changing device of high-voltage motor mounted on handcart type switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212627746U true CN212627746U (en) | 2021-02-26 |
Family
ID=74730321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021549083.7U Expired - Fee Related CN212627746U (en) | 2020-07-30 | 2020-07-30 | Phase-changing device of high-voltage motor mounted on handcart type switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212627746U (en) |
-
2020
- 2020-07-30 CN CN202021549083.7U patent/CN212627746U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 Termination date: 20210730 |