CN206225872U - A kind of MCC drawer switchs misoperation-proof locking device - Google Patents
A kind of MCC drawer switchs misoperation-proof locking device Download PDFInfo
- Publication number
- CN206225872U CN206225872U CN201621202704.8U CN201621202704U CN206225872U CN 206225872 U CN206225872 U CN 206225872U CN 201621202704 U CN201621202704 U CN 201621202704U CN 206225872 U CN206225872 U CN 206225872U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- breaker
- mcc
- contactor
- misoperation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of MCC drawer switchs misoperation-proof locking device, the protective cover with electromagnetic lock is provided with breaker operator handle, the protective cover can all cover breaker operator handle, highly more than breaker operator handle highly, and reserved a certain distance, ensure breaker when electrical apparatus release act can reliable separating brake, electromagnetic lock power line introduced in MCC drawers through MCC drawer switch panels back, to be sealed in and access alternating current 220V after the normally opened auxiliary contact of contactor and control power supply.The opening and closing of anti-misoperation protective cover is controlled by contactor, it is ensured that during equipment running status, protective cover cannot be opened and operated, it is to avoid cut electricity by mistake during equipment running status.And when equipment is stopped transport, protective cover is opened, the operation of breaker can be carried out.If failure or the state of emergency, sub-switching operation cannot be carried out to breaker during separating brake in contactor, can smash protective cover carries out emergency operation.
Description
Technical field
The utility model is related to electric low pressure to become field of power distribution, more particularly to MCC (motor control center) drawer switch.
Background technology
The enterprises such as electric power, industrial and mineral, chemical industry, manufacture are big, it is necessary to more controller switching equipment due to power consumption, in particular for big
The motor control center power supply disks cabinet of amount.For using " breaker+contactor+motor protector " MCC drawer switchs, due to
Its is simple and reliable, can with distant place manipulation, there is perfect protection observing and controlling function, obtain and more and more use.
At present, MCC drawer switchs have been provided with perfect mechanical anti-misoperation operating function, including drawer switch is in working position
Shi Fangneng closes breaker, does not allow to close breaker in positions such as others experiment position, pull-out position, maintenance positions；After breaker closing
Control loop is powered, it is allowed to carry out the breaking-closing operating of contactor；In "on" position, drawer switch does not allow to pull out breaker
Or switch to other state positions etc..But also there are other problemses：
When MCC (motor control center) drawer switch normally runs, in working position, breaker is in and closes a floodgate drawer switch
Position by a distant place, it is necessary to during starting device, instruct control motor protector, motor protector control contactor to close a floodgate, equipment
Can startup optimization.But in equipment operation, if personnel are due to going to the wrong way the factors such as interval, maloperation in MCC drawer switch sheets
During the direct cut-off breaker of body, due to without any locking, operational outfit will be caused to cut electricity by mistake.For visual plant load, one
As be the using and the reserved configuration, if stand-by equipment maintenance or malfunction under, mistakenly stop fortune operational outfit, will be to important machine utilization
Considerable influence is brought, for generating set, equipment fault, unit outage can be caused when serious, produce larger economic damage
Lose.
Because MCC drawer switch voltages are relatively low, most of load significance level is relatively low, anti-error for MCC drawer switchs
Operation attention degree is not enough, but in extreme circumstances, the maloperation of MCC drawer switchs will cause serious consequence.
The content of the invention
The purpose of this utility model is to provide a kind of MCC drawer switchs misoperation-proof locking device, can run into promptly
Situation turns off breaker, and direct operating breaker reduces the maloperation of MCC drawer switchs.
The technical solution of the utility model is：A kind of MCC drawer switchs misoperation-proof locking device, it is characterized in that：Disconnected
Road device operating handle is provided with the protective cover with electromagnetic lock, and the protective cover can all cover breaker operator handle, highly be more than
Breaker operator handle highly, and reserves a certain distance, it is ensured that breaker can reliable separating brake, electromagnetism when electrical apparatus release is acted
Lock power line is introduced in MCC drawers through MCC drawer switch panels back, seals in incoming transport after the normally opened auxiliary contact of contactor
220V controls power supply.
The opening and closing of anti-misoperation protective cover is controlled by contactor, it is ensured that during equipment running status, protective cover cannot be opened
Operated, it is to avoid cut electricity by mistake during equipment running status.And when equipment is stopped transport, protective cover is opened, open circuit can be carried out
The operation of device.If failure or the state of emergency, sub-switching operation cannot be carried out to breaker during separating brake in contactor, protective cover can be smashed
Carry out emergency operation.
Brief description of the drawings
Fig. 1 is the utility model equipment schematic.
Fig. 2 is the utility model electrical schematic diagram.
Drawing reference numeral is：Breaker 1, contactor 2, protective cover 3, breaker operator handle 4, electromagnetic lock 5.
Specific embodiment
As shown in figure 1, using the transparent resin protective cover 3 with electromagnetic lock 5, the protective cover 3 can be by breaker operator handle
The all coverings of hand 4, highly more than the height of breaker operator handle 4, and reserved a certain distance, it is ensured that breaker is dynamic in electrical apparatus release
Can reliable separating brake when making.The power line of electromagnetic lock 5 of electromagnetic protection cover 3 is through MCC (motor control center) drawer switch panel
Back is introduced in MCC drawers, and alternating current 220V control power supply is accessed after sealing in the normally opened auxiliary contact of contactor 2.
As shown in Fig. 2 installing anti-misoperation protective cover 3, the protective cover 3 on MCC drawer switch breaker operators handle 3
By electromagnetism lock control.During 5 dead electricity of electromagnetic lock, lockset is opened, and protective cover 3 can open the breaking-closing operating for carrying out breaker 1；Electricity
When magnetic padlock 5 is powered, lockset locking, protective cover 3 can not be opened, it is impossible to which breaker 1 is operated.Electromagnetic lock 5 is by contactor
Normally opened auxiliary contact are controlled, and when contactor 2 disconnects, normally opened contact disconnects, the loop dead electricity of electromagnetic lock 5, in equipment operation
When, contactor auxiliary contact closure, the loop of electromagnetic lock 5 is powered.By this design, it is ensured that during equipment running status, contactor
Auxiliary contact are closed, and electromagnetic lock 5 is powered, protective cover 3 cannot be opened and operated, it is to avoid cutting by mistake during equipment running status
Electricity.And when equipment is stopped transport, contactor auxiliary contact disconnect, the dead electricity of electromagnetic lock 5, protective cover 3 is opened, and can carry out breaker
Operation.
If failure or the state of emergency, sub-switching operation cannot be carried out to breaker 1 during separating brake in contactor 2, protective cover 3 is set
It is resin material, can smash protective cover 3 carries out emergency operation.
Claims (1)
1. a kind of MCC drawer switchs misoperation-proof locking device, it is characterized in that：It is provided with powered on breaker operator handle (4)
The protective cover (3) of magnetic padlock, the protective cover (3) can all cover breaker operator handle (4), highly more than breaker operator handle
Hand (4) height, and reserved a certain distance, it is ensured that breaker can reliable separating brake, electromagnetic lock (5) power supply when electrical apparatus release is acted
Line is introduced in MCC drawers through MCC drawer switch panels back, and alternating current 220V is accessed after sealing in contactor (2) normally opened auxiliary contact
Control power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621202704.8U CN206225872U (en) | 2016-11-08 | 2016-11-08 | A kind of MCC drawer switchs misoperation-proof locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621202704.8U CN206225872U (en) | 2016-11-08 | 2016-11-08 | A kind of MCC drawer switchs misoperation-proof locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206225872U true CN206225872U (en) | 2017-06-06 |
Family
ID=58791758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621202704.8U Expired - Fee Related CN206225872U (en) | 2016-11-08 | 2016-11-08 | A kind of MCC drawer switchs misoperation-proof locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206225872U (en) |
-
2016
- 2016-11-08 CN CN201621202704.8U patent/CN206225872U/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 |
Granted publication date: 20170606 Termination date: 20171108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |