CN217720704U - Motor protector of electric isolating switch - Google Patents
Motor protector of electric isolating switch Download PDFInfo
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- CN217720704U CN217720704U CN202122213272.8U CN202122213272U CN217720704U CN 217720704 U CN217720704 U CN 217720704U CN 202122213272 U CN202122213272 U CN 202122213272U CN 217720704 U CN217720704 U CN 217720704U
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- 230000001012 protector Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses an electric isolating switch motor protector, which is arranged in an isolating switch operating mechanism box and comprises an air switch, a PLC module, a power module and a self-locking button switch; the power supply of the power supply module is taken from + KM and-KM positions of the air switch and converts DC220V into DC24V, the GND end of the power supply module is directly connected to the GND end of the PLC module, +24V is connected to the normally open contact position of the internal key of the self-locking button switch, the other end of the normally open contact of the internal key of the self-locking button switch is respectively connected to the PLC module and the normally open contact of the isolating switch separating and closing contactor, the normally open contact position of the isolating switch separating and closing contactor, the other end of the normally open contact of the isolating switch separating and closing contactor is connected to the input end of the PLC module, and the output end of the PLC module is connected to the shunt release coil of the air switch. Compared with the prior art, the utility model discloses when causing the motor to be electrified for a long time because various reasons, accessible time disconnection control circuit prevents that the motor from burning out.
Description
Technical Field
The utility model relates to a 110kV of transformer station, 35kV isolator field, especially an electronic isolator motor protector.
Background
In the process of switching on and off the electric isolating switch, the switching-on and switching-off circuit can not be disconnected due to the faults of a control loop (especially the mechanical and electrical faults of a switching-on and switching-off travel switch) and the mechanical faults of a switching-on and switching-off mechanism, and the motor is continuously electrified for a long time, so that the motor is burnt, and even a fire disaster is caused.
Electronic isolator is mostly remote operation, and when the motor was unusual, operating personnel can not in time effectively discover, consequently, when electronic isolator caused the motor to last long-time electrified because of various reasons, can not in time break off control circuit, caused the motor to burn out.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve not enough that exists among the prior art, provide an electronic isolator motor protector.
In order to achieve the purpose, the utility model is implemented according to the following technical scheme:
an electric isolating switch motor protector is arranged in an isolating switch operating mechanism box, comprises an air switch, a PLC module, a power supply module and a self-locking button switch, wherein the inlet port of the air switch is connected with a mains supply; the air switch is provided with a DC24V shunt release, the power supply of the power supply module is taken from + KM and-KM positions of the air switch and converts DC220V into DC24V, the GND end of the power supply module is directly connected to the GND end of the PLC module, +24V is connected to the normally-open contact of the internal key of the self-locking button switch, the other end of the normally-open contact of the internal key of the self-locking button switch is respectively connected to the PLC module, the normally-open contact of the isolating switch on-off contactor and the normally-open contact of the isolating switch shunt-off contactor, the normally-open contact of the isolating switch on-off contactor and the other end of the normally-open contact of the isolating switch shunt-off contactor are connected to the input end of the PLC module, and the output end of the PLC module is connected to a shunt release coil of the air switch.
Furthermore, an LED lamp is arranged inside the self-locking button switch and connected to the output end of the PLC module.
Further, still include the box body, PLC module, power module, air switch, self-locking type button switch install in the box body.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) The utility model discloses when electronic isolator in normal branch, when closing a floodgate operation, the protector does not move, guarantees going on of normal operation.
(2) The utility model discloses when electronic isolator control circuit or mechanism trouble, branch, combined floodgate process last 6S backs, and the protector disconnection divides, combined floodgate return circuit, reaches the purpose of protection switch motor.
Drawings
Fig. 1 is a structural diagram of a motor protector of an electric isolating switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, the embodiment provides an electric isolating switch motor protector, which is installed in an isolating switch operating mechanism box, and includes an air switch 2, a box body 1, a PLC module 3, a power module 4, and a self-locking button switch 5, wherein a line inlet port of the air switch 2 is connected to a mains supply; the PLC module 3, the power module 4, the air switch 2 and the self-locking button switch 5 are arranged in the box body 1; the air switch 2 is provided with a DC24V shunt release, a power supply of the power supply module 4 is taken from + KM and-KM positions of the air switch 2 and converts DC220V into DC24V, wherein a GND end of the power supply module 4 is directly connected to a GND end of the PLC module 3, 24V is connected to a normally open contact of an internal key of the self-locking button switch 5, the other end of the normally open contact of the internal key of the self-locking button switch 5 is respectively connected to the PLC module 3, a normally open contact 6 of an isolating switch closing contactor and a normally open contact 7 of an isolating switch separating contactor, and the other ends of the normally open contact 6 of the isolating switch closing contactor and the normally open contact 7 of the isolating switch separating contactor are connected to the input end of the PLC module 3; the self-locking button switch 5 internally comprises a self-locking button and a light-emitting diode, when the self-locking button is pressed down, the button can be recessed, a finger is loosened, the button cannot be reset, and at the moment, an internal normally open contact is connected; then pressing the key to reset the key; meanwhile, an LED lamp is integrated in the self-locking button switch and is controlled by the PLC module; the output end of the PLC module 3 is respectively connected to the shunt tripping coil of the air switch 2 and the LED lamp in the self-locking button switch 5.
When the electric isolating switch normally operates, a key of the self-locking button switch 5 is pressed, at the moment, the PLC module 3 is electrified, the PLC module 3 outputs +24V voltage to the shunt trip coil of the air switch 2 and the LED module of the self-locking button switch 5, at the moment, the air switch 2 is switched on, and the LED lamp in the self-locking button switch 5 is on.
When the normal electric isolating switch is used for switching on and switching off, after the switching on and switching off are in place, a travel switch is used for disconnecting the switching on and switching off control loop of the electric isolating switch, the switching on and switching off process generally lasts for 4.5 seconds, and at the moment, the motor stops rotating. The PLC module 3 does not operate.
When a control loop or a mechanism breaks down, the motor is continuously electrified, when the switching-off and switching-on time (the closing time of a normally open contact 6 of a disconnecting switch switching-on contactor and a normally open contact 7 of the disconnecting switch switching-on contactor) exceeds 6 seconds (the time is counted in the PLC module 3), the PLC module 3 outputs +24V voltage to an LED module of an air switch 2 shunt tripping coil and a self-locking button switch 5, and at the moment, the air switch 2 trips, the switching-off and switching-on contactors lose power, the switching-off and switching-on loops are disconnected, and the motor loop loses power. After 1 second, the PLC module 3 recovers to output +24V voltage to the shunt tripping coil of the air switch 2 and the LED module of the self-locking button switch 5.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (3)
1. An electric isolating switch motor protector is arranged in an isolating switch operating mechanism box and comprises an air switch, wherein the wire inlet port of the air switch is connected with a mains supply; the air switch is provided with a DC24V shunt release, a power supply of a power supply module is taken from + KM and-KM positions of the air switch and converts DC220V into DC24V, wherein a GND end of the power supply module is directly connected to a GND end of a PLC module, +24V is connected to a normally open contact of an internal key of a self-locking button switch, the other end of the normally open contact of the internal key of the self-locking button switch is respectively connected to the PLC module and a normally open contact of a disconnecting switch closing contactor, the normally open contact of the disconnecting switch closing contactor, the other end of the normally open contact of the disconnecting switch closing contactor is connected to an input end of the PLC module, and an output end of the PLC module is connected to a shunt release coil of the air switch.
2. The electrical isolator motor protector of claim 1, wherein: and an LED lamp is arranged inside the self-locking button switch and is connected to the output end of the PLC module.
3. The electric isolating switch motor protector as recited in claim 1, further comprising a box body, wherein the PLC module, the power module, the air switch, and the self-locking button switch are mounted in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122213272.8U CN217720704U (en) | 2021-09-13 | 2021-09-13 | Motor protector of electric isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122213272.8U CN217720704U (en) | 2021-09-13 | 2021-09-13 | Motor protector of electric isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217720704U true CN217720704U (en) | 2022-11-01 |
Family
ID=83773366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122213272.8U Active CN217720704U (en) | 2021-09-13 | 2021-09-13 | Motor protector of electric isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217720704U (en) |
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2021
- 2021-09-13 CN CN202122213272.8U patent/CN217720704U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240312 Address after: Room 1805, Building 3, Zone 9, Future City Yuxiyuan, Kaifa Road, Shuangqiao District, Chengde City, Hebei Province, 067000 Patentee after: Yang Rongjun Country or region after: China Patentee after: Yang Haifei Address before: Room 201, Unit 1, Building 14, Zone 9, Longfengyuan, Gaoling District, Xi'an City, Shaanxi Province Patentee before: Liu Bin Country or region before: China |
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| TR01 | Transfer of patent right |