CN206611167U - A kind of phase-lacking protective device of three-phase controller switching equipment - Google Patents
A kind of phase-lacking protective device of three-phase controller switching equipment Download PDFInfo
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- CN206611167U CN206611167U CN201720215741.0U CN201720215741U CN206611167U CN 206611167 U CN206611167 U CN 206611167U CN 201720215741 U CN201720215741 U CN 201720215741U CN 206611167 U CN206611167 U CN 206611167U
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- phase
- contactor
- alarm
- auxiliary reclay
- phases
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Abstract
The utility model discloses a kind of phase-lacking protective device of three-phase controller switching equipment, it is related to technical field of electric control.The phase-lacking protective device includes main distribution unit, distribution power transmission control unit, open-phase protection control unit and alarm control unit, pass through low-voltage circuit breaker, A.C. contactor, auxiliary reclay, the time relay, alarm, start switch knob and stop SR and open-phase protection control is given to equipment electrical component, when there is anomaly and causing phase shortage power transmission, it can cut off the electricity supply rapidly, siren sends early warning, protection electrical component, ensure that equipment safety is used and normal operation, reduce maintenance cost and the maintenance time of equipment, improve operating efficiency.
Description
Technical field
The utility model belongs to technical field of electric control, more particularly to a kind of open-phase protection of three-phase controller switching equipment is filled
Put.
Background technology
The need for power network intelligent development, the monitoring to three phase mains is more and more important, once occur three phase mains
In a phase phase shortage or disconnected phase, it will cause electrical equipment to be damaged, or cause supply voltage low, brightness of illumination not enough waits existing
As.
Existing three-phase carries out phase shortage with controller switching equipment using low-voltage circuit breaker, electrothermal relay, open-phase protection relay etc.
Protection, often because thunderbolt phase shortage or circuit phase shortage power transmission factor are lost from voltage breaker, electrothermal relay, open-phase protection relay is lowerd
Effect, or protector deferred action, it is impossible to the power supply of rapid cut-out electrical component, lack defencive function, cause equipment electricity consumption member
Device works and is damaged under non-full-phase state, greatly influences equipment safety to use and normal production run, increase equipment
Maintenance cost and maintenance time.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of phase-lacking protective device of three-phase controller switching equipment, when
Occur cutting off the electricity supply rapidly during phase shortage power transmission, protection electrical component, it is ensured that equipment uses safety.
The utility model is to solve above-mentioned technical problem by the following technical solutions：A kind of three-phase controller switching equipment
Phase-lacking protective device, including main distribution unit, distribution power transmission control unit, open-phase protection control unit and alarm control is single
Member；
Main distribution unit include be sequentially connected three phase line L1/L2/L3, low-voltage circuit breaker QF, A.C. contactor KM and
Apparatus of load；
Distribution power transmission control unit include stop SR SB1, switch knob SB2, auxiliary reclay KA3, KA4 and when
Between relay KT1, KT2；A.C. contactor KM inlet side U phases are connected in series with stopping SR SB1 and switch knob SB2；
Switch knob SB2 and auxiliary reclay KA3-1 normally opened auxiliary contact are connected in parallel, and respectively with auxiliary reclay KA3-2,
One end connection of KA4-2 and the time relay KT1-2 hot-wire coil, while being connected with A.C. contactor KM-1 normally opened contact
Be connected in series one end of time relay KT2-2 hot-wire coil afterwards, described auxiliary reclay KA3-2, KA4-2 and time after
The other end of electrical equipment KT1-2, KT2-2 hot-wire coil is connected with distribution zero line；Time relay KT1-1 normally-closed contact one end
It is connected with the switch knob SB2 end that goes out, the other end is connected with the inlet side of auxiliary reclay KA3-1 normally opened contact, plays delay disconnected
The effect of switching control circuit and open-phase protection control circuit；
Open-phase protection control unit includes auxiliary reclay KA1, KA2, KA3 and A.C. contactor KM, A.C. contactor KM
The normally opened auxiliary contact and A.C. contactor KM-2 live wire that go out to hold U1 phases and auxiliary reclay KA1-1, KA2-1, KA3-1
One end of circle is connected in series, and the other end of A.C. contactor KM-2 hot-wire coil is connected with distribution zero line；A.C. contactor KM-
1 normally opened auxiliary contact are connected in series rear in parallel and U1 phases with run indicator；A.C. contactor KM's goes out to hold V1 phases, W1 phases point
It is not connected with auxiliary reclay KA1-2, KA2-2 hot-wire coil one end, the other end of KA1-2, KA2-2 hot-wire coil is with matching somebody with somebody
Electrical zero line is connected；
Alarm control unit includes alarm, alarm internal alarm switch SW, time relay KT2 and middle relay
Device KA4's, A.C. contactor KM goes out to hold U1 phases, V1 phases, W1 phases to be connected with alarm one end, and the other end of alarm is with matching somebody with somebody electrical zero
Line is connected, alarm internal alarm switch SW and the time relay KT2-1 normally closed auxiliary contact and auxiliary reclay KA4-1
Normally opened auxiliary contact are connected in series.
The low-voltage circuit breaker QF, is installed in power distribution cabinet, for short circuit cut-out；A.C. contactor KM, is installed on distribution
In cabinet, for powering；Auxiliary reclay KA1/KA2, is installed in power distribution cabinet, is cut off the electricity supply during for detecting V phases, W phase phase shortages；
Auxiliary reclay KA3, is installed in power distribution cabinet, for startup power supply；Auxiliary reclay KA4, alarm is connected during for phase shortage
Alarm；Time relay KT1, breaks for main distribution unit and open-phase protection control unit delay lock；Time relay KT2, is used
In the disconnected alarm equipment alarm of delay lock；Alarm, for the prompting of phase shortage alarm；Button SB1/SB2, for power initiation, disconnection,
Phase shortage resets.
As combined floodgate low-voltage circuit breaker QF, start switch knob SB2, auxiliary reclay KA3 is powered and self-locking by U phases, exchange
Contactor KM, time relay KT1 and auxiliary reclay KA1/KA2/KA4 coil are powered simultaneously；Time relay KT1 is powered
Delay disconnects distribution power transmission control unit and open-phase protection control unit, open-phase protection auxiliary reclay KA1/KA2 coil afterwards
It is independently-powered by A.C. contactor KM, it is powered without by distribution power transmission control unit, non-full-phase state is carried out to main distribution
Detection；A.C. contactor KM coil power is given by U1 phases by the normally opened auxiliary contact series connection of auxiliary reclay KA1/KA2/KA3
To power；When any one phases of main distribution U/V/W or multiphase phase shortage, A.C. contactor KM and auxiliary reclay KA1/KA2 coil
Power off simultaneously, KM deenergizations, distribution power transmission control unit is still powered；After disconnection main distribution unit power supply, alarm report
Alert, time relay KT2 coils aid in normally-closed contact to power by distribution power transmission control unit and KM, and be delayed disconnecting warning device report
The alert time limit；Main distribution unit is restarted, must press stopping SR SB1 makes after time relay KT1 power-off restorations, side
Distribution conveying can be started.
When occur anomaly cause to provide and deliver electric phase shortage when can cut off the electricity supply rapidly, alarm early warning reaches protection electricity consumption
In the state of component, the purpose of reduction maintenance cost, circuit phase shortage, it is impossible to starting device power supply, it can start after must resetting,
To ensure safety in production.
As further improvement of the utility model, the low-voltage circuit breaker QF includes breaker body, the breaker
Body includes shell and handle, and the handle includes grip part and pivot part, and the grip part is integrally formed with the pivot part,
The pivot part is pivotally connected with shell, and the front side wall of shell is run through in the grip part, and the outer surface of the front side wall, which is provided with, to be used to glue
The groove of labelling, the groove is provided with groove lid.
As further improvement of the utility model, mould is protected provided with overload current in the shell of the A.C. contactor KM
Block and current sensor, current sensor are separately fixed on the binding post of A.C. contactor side, and electric with overload respectively
The input electrical connection of protection module is flowed, the output end of overload current protection module is serially connected in ac contactor coil and connect with exchanging
Between one winding wiring terminal of tentaculum.
Compared with prior art, the phase-lacking protective device of three-phase controller switching equipment provided by the utility model, using low
Voltage breaker, A.C. contactor, auxiliary reclay, the time relay, alarm, switch knob and stopping SR being lacked
Mutually protection control, when anomaly occur and causing phase shortage power transmission, can cut off the electricity supply rapidly, siren sends early warning, protect
With electrical component, it is ensured that equipment safety is used and normal operation, is reduced maintenance cost and the maintenance time of equipment, is improved
Operating efficiency.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, used required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only one embodiment of the present utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation of the utility model.
Embodiment
With reference to the accompanying drawing in the utility model embodiment, technical scheme of this implementation in new is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are obtained on the premise of creative work is not made
Every other embodiment, belong to the utility model protection scope.
As shown in figure 1, the phase-lacking protective device of three-phase controller switching equipment provided by the utility model, including main distribution list
Member, distribution power transmission control unit, open-phase protection control unit and alarm control unit；
Main distribution unit include be sequentially connected three phase line L1/L2/L3, low-voltage circuit breaker QF, A.C. contactor KM and
Apparatus of load；
Distribution power transmission control unit include stop SR SB1, switch knob SB2, auxiliary reclay KA3, KA4 and when
Between relay KT1, KT2；A.C. contactor KM inlet side U phases are connected in series with stopping SR SB1 and switch knob SB2；
Switch knob SB2 and auxiliary reclay KA3-1 normally opened auxiliary contact are connected in parallel, and respectively with auxiliary reclay KA3-2,
One end connection of KA4-2 and the time relay KT1-2 hot-wire coil, while being connected with A.C. contactor KM-1 normally opened contact
Be connected in series one end of time relay KT2-2 hot-wire coil afterwards, described auxiliary reclay KA3-2, KA4-2 and time after
The other end of electrical equipment KT1-2, KT2-2 hot-wire coil is connected with distribution zero line；Time relay KT1-1 normally-closed contact one end
It is connected with the switch knob SB2 end that goes out, the other end is connected with the inlet side of auxiliary reclay KA3-1 normally opened contact, plays delay disconnected
The effect of switching control circuit and open-phase protection control circuit；
Open-phase protection control unit includes auxiliary reclay KA1, KA2, KA3 and A.C. contactor KM, A.C. contactor KM
The normally opened auxiliary contact and A.C. contactor KM-2 live wire that go out to hold U1 phases and auxiliary reclay KA1-1, KA2-1, KA3-1
One end of circle is connected in series, and the other end of A.C. contactor KM-2 hot-wire coil is connected with distribution zero line；A.C. contactor KM-
1 normally opened auxiliary contact are connected in series rear in parallel and U1 phases with run indicator；A.C. contactor KM's goes out to hold V1 phases, W1 phases point
It is not connected with auxiliary reclay KA1-2, KA2-2 hot-wire coil one end, the other end of KA1-2, KA2-2 hot-wire coil is with matching somebody with somebody
Electrical zero line is connected；
Alarm control unit includes alarm, alarm internal alarm switch SW, time relay KT2 and middle relay
Device KA4's, A.C. contactor KM goes out to hold U1 phases, V1 phases, W1 phases to be connected with alarm one end, and the other end of alarm is with matching somebody with somebody electrical zero
Line is connected, alarm internal alarm switch SW and the time relay KT2-1 normally closed auxiliary contact and auxiliary reclay KA4-1
Normally opened auxiliary contact are connected in series.
The low-voltage circuit breaker QF, is installed in power distribution cabinet, for short circuit cut-out；A.C. contactor KM, is installed on distribution
In cabinet, for powering；Auxiliary reclay KA1/KA2, is installed in power distribution cabinet, is cut off the electricity supply during for detecting V phases, W phase phase shortages；
Auxiliary reclay KA3, is installed in power distribution cabinet, for startup power supply；Auxiliary reclay KA4, alarm is connected during for phase shortage
Alarm；Time relay KT1, breaks for main distribution unit and open-phase protection control unit delay lock；Time relay KT2, is used
In the disconnected alarm equipment alarm of delay lock；Alarm, for the prompting of phase shortage alarm；Button SB1/SB2, for power initiation, disconnection,
Phase shortage resets.
As combined floodgate low-voltage circuit breaker QF, start switch knob SB2, auxiliary reclay KA3 is powered and self-locking by U phases, exchange
Contactor KM, time relay KT1 and auxiliary reclay KA1/KA2/KA4 coil are powered simultaneously；Time relay KT1 is powered
Delay disconnects distribution power transmission control unit and open-phase protection control unit, open-phase protection auxiliary reclay KA1/KA2 coil afterwards
It is independently-powered by A.C. contactor KM, it is powered without by distribution power transmission control unit, non-full-phase state is carried out to main distribution
Detection；A.C. contactor KM coil power is given by U1 phases by the normally opened auxiliary contact series connection of auxiliary reclay KA1/KA2/KA3
To power；When any one phases of main distribution U/V/W or multiphase phase shortage, A.C. contactor KM and auxiliary reclay KA1/KA2 coil
Power off simultaneously, KM deenergizations, distribution power transmission control unit is still powered；After disconnection main distribution unit power supply, alarm report
Alert, time relay KT2 coils aid in normally-closed contact to power by distribution power transmission control unit and KM, and be delayed disconnecting warning device report
The alert time limit；Main distribution unit is restarted, must press stopping SR SB1 makes after time relay KT1 power-off restorations, side
Distribution conveying can be started.
The low-voltage circuit breaker QF includes breaker body, and the breaker body includes shell and handle, the handle
Including grip part and pivot part, the grip part is integrally formed with the pivot part, and the pivot part is pivotally connected with shell, described to hold
The front side wall that shell is run through in portion is held, the outer surface of the front side wall is provided with the groove for adhesive label, and the groove is provided with groove
Lid.
Overload current protection module and current sensor, current sensor point are provided with the shell of the A.C. contactor KM
On the binding post for not being fixed on A.C. contactor side, and the input with overload current protection module is electrically connected respectively, mistake
The output end for carrying overcurrent protection module is serially connected between a winding wiring terminal of ac contactor coil and A.C. contactor.
The phase-lacking protective device for the three-phase controller switching equipment that the utility model is used, passes through low-voltage circuit breaker, ac contactor
Device, auxiliary reclay, the time relay, alarm, startup switch knob and stopping SR giving open-phase protection control, when
There is anomaly when causing phase shortage power transmission, can cut off the electricity supply rapidly, siren sends early warning, protection electrical component, really
Protect equipment safety to use and normal operation, reduce maintenance cost and the maintenance time of equipment, improve operating efficiency.
Above disclosed is only embodiment of the present utility model, but protection domain of the present utility model not office
It is limited to this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Change or modification, should all cover within protection domain of the present utility model.
Claims (3)
1. a kind of phase-lacking protective device of three-phase controller switching equipment, it is characterised in that：Controlled including main distribution unit, distribution power transmission
Unit, open-phase protection control unit and alarm control unit；
Main distribution unit includes three phase line L1/L2/L3, low-voltage circuit breaker QF, A.C. contactor KM and the equipment being sequentially connected
Load；
Distribution power transmission control unit includes stopping SR SB1, switch knob SB2, auxiliary reclay KA3, KA4 and time after
Electrical equipment KT1, KT2；A.C. contactor KM inlet side U phases are connected in series with stopping SR SB1 and switch knob SB2；Close a floodgate
Button SB2 and auxiliary reclay KA3-1 normally opened auxiliary contact are connected in parallel, and respectively with auxiliary reclay KA3-2, KA4-2
Connected with one end of time relay KT1-2 hot-wire coil, while being gone here and there after being connected with A.C. contactor KM-1 normally opened contact
Join one end of the hot-wire coil of Connection Time relay KT2-2, described auxiliary reclay KA3-2, KA4-2 and the time relay
The other end of KT1-2, KT2-2 hot-wire coil is connected with distribution zero line；Time relay KT1-1 normally-closed contact one end is with closing
Lock button SB2's goes out end connection, and the other end is connected with the inlet side of auxiliary reclay KA3-1 normally opened contact；
Open-phase protection control unit includes auxiliary reclay KA1, KA2, KA3 and A.C. contactor KM, and A.C. contactor KM's goes out
The hot-wire coil of end U1 phases and auxiliary reclay KA1-1, KA2-1, KA3-1 normally opened auxiliary contact and A.C. contactor KM-2
One end is connected in series, and the other end of A.C. contactor KM-2 hot-wire coil is connected with distribution zero line；A.C. contactor KM-1's
Normally opened auxiliary contact are connected in series rear in parallel and U1 phases with run indicator；A.C. contactor KM's goes out to hold V1 phases, W1 phases to distinguish
It is connected with auxiliary reclay KA1-2, KA2-2 hot-wire coil one end, the other end and distribution of KA1-2, KA2-2 hot-wire coil
Zero line is connected；
Alarm control unit includes alarm, alarm internal alarm switch SW, time relay KT2 and auxiliary reclay
KA4's, A.C. contactor KM goes out to hold U1 phases, V1 phases, W1 phases to be connected with alarm one end, the other end and the distribution zero line of alarm
Connection, alarm internal alarm switch SW and time relay KT2-1 normally closed auxiliary contact and auxiliary reclay KA4-1's is normal
Auxiliary contact are driven to be connected in series.
2. phase-lacking protective device as claimed in claim 1, it is characterised in that：The low-voltage circuit breaker QF includes breaker sheet
Body, the breaker body includes shell and handle, and the handle includes grip part and pivot part, the grip part and the pivot
Transfer part is integrally formed, and the pivot part is pivotally connected with shell, and the front side wall of shell, the appearance of the front side wall are run through in the grip part
Face is provided with the groove for adhesive label, and the groove is provided with groove lid.
3. phase-lacking protective device as claimed in claim 1, it is characterised in that：It was provided with the shell of the A.C. contactor KM
Overcurrent protection module and current sensor are carried, current sensor is separately fixed on the binding post of A.C. contactor side, and
The input with overload current protection module is electrically connected respectively, and the output end of overload current protection module is serially connected in A.C. contactor
Between one winding wiring terminal of coil and A.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215741.0U CN206611167U (en) | 2017-03-07 | 2017-03-07 | A kind of phase-lacking protective device of three-phase controller switching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215741.0U CN206611167U (en) | 2017-03-07 | 2017-03-07 | A kind of phase-lacking protective device of three-phase controller switching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206611167U true CN206611167U (en) | 2017-11-03 |
Family
ID=60165732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720215741.0U Expired - Fee Related CN206611167U (en) | 2017-03-07 | 2017-03-07 | A kind of phase-lacking protective device of three-phase controller switching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206611167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038479A (en) * | 2018-08-23 | 2018-12-18 | 国网河北省电力有限公司沧州供电分公司 | Over-pressure safety device |
-
2017
- 2017-03-07 CN CN201720215741.0U patent/CN206611167U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038479A (en) * | 2018-08-23 | 2018-12-18 | 国网河北省电力有限公司沧州供电分公司 | Over-pressure safety device |
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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: 20171103 Termination date: 20200307 |
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| CF01 | Termination of patent right due to non-payment of annual fee |