CN209072048U - A kind of circuit using protection for feed line measure and control device - Google Patents
A kind of circuit using protection for feed line measure and control device Download PDFInfo
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- CN209072048U CN209072048U CN201821797539.4U CN201821797539U CN209072048U CN 209072048 U CN209072048 U CN 209072048U CN 201821797539 U CN201821797539 U CN 201821797539U CN 209072048 U CN209072048 U CN 209072048U
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Abstract
The utility model discloses a kind of circuits using protection for feed line measure and control device, including main circuit, main circuit control circuit；The protection for feed line measure and control device further includes protection for feed line measure and control device input terminal and protection for feed line measure and control device output end；Several output ends, are connected in main circuit control circuit, for controlling the opening and closing of main circuit by the protection for feed line measure and control device output end respectively.The utility model has technical effect that, uses protection for feed line measure and control device and its control circuit, and the circuit that can reduce protection for feed line measure and control device in the prior art is passed by there is unstable or control line is controlled in complicated situation.The complexity for reducing wiring, to be conducive to repair and improve efficiency.
Description
Technical field
The utility model relates to control circuit more particularly to a kind of circuits using protection for feed line measure and control device.
Background technique
It needs to protect using the controller including PLC for feeder line in the circuit of existing protection for feed line measure and control device
The circuit of shield measure and control device is controlled, but when using PLC or other controls, in use in protection for feed line measure and control device
When, it usually will appear unstable working condition, so that controller is out of control in moment, so that the work that circuit can not be stable, meanwhile,
In the control circuit using routine, when such as time relay control, it may appear that control line is passed by complexity, is easy to appear route event
Barrier, meanwhile, it makes troubles to maintenance, there is control unstable or control line for the circuit of existing protection for feed line measure and control device
It passes by complicated situation.
Utility model content
The purpose of this utility model is according in place of above-mentioned the deficiencies in the prior art, and the utility model aim realizes that one kind is adopted
With the circuit of protection for feed line measure and control device, which is characterized in that including main circuit, main circuit control circuit；
The protection for feed line measure and control device further includes protection for feed line measure and control device input terminal and protection for feed line observing and controlling dress
Set output end；The first input end of the protection for feed line measure and control device connects first the first normally-closed contact of relay, for storing up
It can status alert input；Second input terminal of the protection for feed line measure and control device connects the first normally opened touching of the first breaker
Point, for controlling power supply status input；The third input terminal of the protection for feed line measure and control device to the 5th input terminal successively divides
The first normally opened contact of the first control contactor is not connected to third normally opened contact, is respectively used to the combined floodgate of the first control contactor
Position, working position and the state input for testing position；The 6th input terminal and the 7th input terminal of the protection for feed line measure and control device
It is separately connected mother cabinet normal operating conditions and mother cabinet fail operation state, the monitoring for mother cabinet working condition；Institute
8th input terminal of the protection for feed line measure and control device stated connects the first change-over switch, inputs for transition status；The feeder line
9th input terminal of protection supervisory equipment connects the second control button, inputs for manual brake separating signal；The protection for feed line
Tenth input terminal of measure and control device and the 11st input terminal are separately connected backup power source cabinet normal operating conditions and backup power source
Cabinet fail operation state, the monitoring for backup power source cabinet；12nd input terminal of the protection for feed line measure and control device connects
Middle pressure cabinet state output normally-closed contact is inputted for middle pressure cabinet state；
Several output ends are connected to main circuit control circuit respectively by the protection for feed line measure and control device output end
In, for controlling the opening and closing of main circuit.
Further, the main circuit further includes the first control contactor, voltage transformer, current transformer, surge guarantor
Protect device；Three phase mains by fuse respectively with the first control contactor main contacts, voltage transformer and Surge Protector into
Line end is connected；The leading-out terminal of the leading-out terminal connection transformer of first control contactor main contacts；In the first control contactor
Current transformer is set on leading-out terminal to the three phase mains between transformer；The leading-out terminal of Surge Protector connects ground line；?
Zero sequence transformer is set on the first zero curve, and zero sequence transformer is connected with the second zero curve of transformer and is connected to ground line.
Further, the end of incoming cables of control power supply the second change-over switch of connection of the main circuit control circuit, second turn
The end of incoming cables of the energy storage device of the first control contactor of end of incoming cables connection of switch is changed, the energy storage device of the first control contactor
Leading-out terminal connects zero curve；Meanwhile first the normally opened contact of energy storage device of control contactor connect the coil of first relay
End of incoming cables；The leading-out terminal of the coil of first relay connects zero curve, the energy storage control of the energy storage device for the first control contactor
System；
Control the first end point and third endpoint of power supply connection third conversion switch；And in the second end of third conversion switch
Point and the formation of the 4th endpoint are correspondingly connected with；The second endpoint and the 4th endpoint of third conversion switch are separately connected the normal of the first button
The end of incoming cables for opening the end of incoming cables of contact and the first output end of the protection for feed line measure and control device is connected；First button
The leading-out terminal of normally opened contact is in parallel with the leading-out terminal of the first output end, and with the first normally-closed contact of the first control contactor into
Line end is connected, and the leading-out terminal of the first normally-closed contact of the first control contactor connects the inlet wire of the coil of the first control contactor
End, the second output terminal normally-closed contact of the leading-out terminal connection of the coil of the first control contactor protection for feed line measure and control device
The end of incoming cables of SO1 is connected；The leading-out terminal of the second output terminal normally-closed contact of the protection for feed line measure and control device and zero curve phase
Connection is closed a floodgate for closing by hand and remote auto；
Control the end of incoming cables that power supply connects the normally opened contact of the second button, the leading-out terminal connection of the normally opened contact of the second button
The end of incoming cables of 4th normally opened contact of first control contactor is connected；The 4th of first control contactor is often
The leading-out terminal for opening contact is connected with the coil end of incoming cables of first control contactor, first control contactor
Finish lead connects zero curve；
5th endpoint of control power supply L connection third conversion switch is simultaneously corresponding with the 6th endpoint of third conversion switch；The
The end of incoming cables of the third output end normally opened contact of the 6th endpoint connection of the three conversion switches protection for feed line measure and control device, institute
The leading-out terminal of the normally opened contact of the leading-out terminal and the second button of the third output end normally opened contact for the protection for feed line measure and control device stated
It is in parallel；For manual brake separating and remote control separating brake control；
The end of incoming cables of the 4th output end normally opened contact of the power supply connection protection for feed line measure and control device is controlled, meanwhile,
The leading-out terminal of 4th output end normally opened contact of the protection for feed line measure and control device and the protection for feed line measure and control device 1n
The 5th output end normally opened contact series connection；The leading-out terminal of 5th output end normally opened contact of the protection for feed line measure and control device with
The leading-out terminal of the normally opened contact of second button is in parallel；For trip protection；
After the 6th output end connection resistance for controlling the power supply connection protection for feed line measure and control device, with the second button
The leading-out terminal of normally opened contact is in parallel；For trip circuit monitoring；
The end of incoming cables of the 7th output end normally opened contact of the power supply connection protection for feed line measure and control device is controlled, it is described
The leading-out terminal of 7th output end normally opened contact of protection for feed line measure and control device with the leading-out terminal of the normally opened contact of the second button simultaneously
Connection；It is protected for undervoltage tripping；
Control the end of incoming cables of the 5th normally opened contact of power supply connection first control contactor, first control
The leading-out terminal of 5th normally opened contact of contactor connects the coil end of incoming cables of the second relay；The finish lead of second relay
Connect zero curve；
Control the end of incoming cables of the 8th output end normally opened contact of the power supply connection protection for feed line measure and control device；Described
The 9th of the leading-out terminal connection of 8th output end normally opened contact of the protection for feed line measure and control device protection for feed line measure and control device
The end of incoming cables of output end normally opened contact；The leading-out terminal of 9th output end normally opened contact of the protection for feed line measure and control device connects
First indicator light；It is indicated for protection act.
Further, both ends connect multifunction electric meter, the metering for electricity between the control power supply and zero curve.
The utility model has technical effect that, uses protection for feed line measure and control device and its control circuit, can subtract
The circuit of few protection for feed line measure and control device in the prior art is passed by there is unstable or control line is controlled in complicated situation.
The complexity for reducing wiring, to be conducive to repair and improve efficiency.
Detailed description of the invention
Fig. 1 is the schematic diagram of the main circuit of the utility model.
Fig. 2 is the wiring schematic diagram of the protection for feed line measure and control device of the utility model.
Fig. 3 is the schematic diagram of the utility model main circuit control circuit.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
In conjunction with shown in attached drawing 1, attached drawing 2, a kind of circuit using protection for feed line measure and control device is provided in the present embodiment, is wrapped
Include main circuit 100, main circuit control circuit 200；
Protection for feed line measure and control device 1n further includes protection for feed line measure and control device 1n input terminal and protection for feed line measure and control device
1n output end；First input end B11 connection the first relay the first normally-closed contact KA1-1 of protection for feed line measure and control device 1n is used
It alarms and inputs in energy storage state；The first of second input terminal B12 the first breaker of connection of protection for feed line measure and control device 1n is normally opened
Contact QF1-1, for controlling power supply status input；The third input terminal of protection for feed line measure and control device 1n is to the 5th input terminal
(B13-B15) the first normally opened contact of the first control contactor is successively separately connected to third normally opened contact (1QF-1-1QF-
3) closing position, working position and the state input for testing position of the first control contactor, are respectively used to；The protection for feed line is surveyed
The 6th input terminal and the 7th input terminal (B16, B17) for controlling device 1n are separately connected mother cabinet normal operating conditions and mother cabinet
Fail operation state, the monitoring for mother cabinet working condition；The 8th input terminal B18 connection of protection for feed line measure and control device 1n
First change-over switch SA1 is inputted for transition status；The 9th input terminal B19 connection second of protection for feed line measure and control device 1n is controlled
Button processed is inputted for manual brake separating signal；The tenth input terminal B20 and the 11st input terminal of protection for feed line measure and control device 1n
B21 is separately connected backup power source cabinet normal operating conditions and backup power source cabinet fail operation state, for backup power source cabinet
Monitoring；Cabinet state output normally-closed contact DL is pressed in the 12nd input terminal B22 connection of protection for feed line measure and control device 1n, is used for middle pressure
The input of cabinet state；
Several output ends, are connected in main circuit control circuit 200 by protection for feed line measure and control device 1n output end respectively,
For controlling the opening and closing of main circuit 100.
In the present invention, using protection for feed line measure and control device circuit is simplified, while using its control electricity
Road, the circuit that the two can reduce protection for feed line measure and control device in the prior art are passed by there is unstable or control line is controlled
In complicated situation.The complexity for reducing wiring, to be conducive to repair and improve efficiency.
Shown in fig. 1, main circuit 100 further includes the first control contactor 1QF, voltage transformer TV, Current Mutual Inductance
Device TA, Surge Protector SPD；Three phase mains L11-L13 by fuse FU respectively with the first control contactor main contacts 1QF-
1, voltage transformer TV is connected with the end of incoming cables of Surge Protector SPD；The outlet of first control contactor main contacts 1QF-1
The leading-out terminal of end connection transformer TF；The first control contactor 1QF leading-out terminal to the three phase mains between transformer TF
Current transformer TA is set on L11-L13；The leading-out terminal connection ground line E of Surge Protector SPD；It is arranged on the first zero curve N
The second zero curve N1 of zero sequence transformer TA0, zero sequence transformer TA0 and transformer TF are connected and are connected to ground line E.
In conjunction with shown in attached drawing 3, the inlet wire of control the second change-over switch of power supply L connection SA2 of main circuit control circuit 200
End, the end of incoming cables of the second change-over switch SA2 connect the end of incoming cables of the energy storage device 1QF-4 of the first control contactor, the first control
The leading-out terminal of the energy storage device 1QF-4 of contactor connects zero curve N；Meanwhile first control contactor energy storage device 1QF-4 it is normal
Open the end of incoming cables that contact connects the coil of the first relay KA1；The leading-out terminal of the coil of first relay KA1 connects zero curve N, uses
In the energy storage control of the energy storage device 1QF-4 of the first control contactor；
Control the first end point and third endpoint of power supply L connection third conversion switch SA3；And switch SA3 is converted in third
The second endpoint and the 4th endpoint formation be correspondingly connected with；The second endpoint and the 4th endpoint of third conversion switch SA3 is separately connected
The first output end PO1 of the end of incoming cables of the normally opened contact of first button SB1 and the protection for feed line measure and control device 1n into
Line end is connected；The leading-out terminal of the normally opened contact of first button SB1 is in parallel with the leading-out terminal of the first output end PO1, and with first
The end of incoming cables of first normally-closed contact 1QF-5 of control contactor is connected, the first normally-closed contact 1QF-5 of the first control contactor
Leading-out terminal connect the first control contactor 1QF coil end of incoming cables, the leading-out terminal of the coil of the first control contactor 1QF connects
The end of incoming cables for meeting the second output terminal normally-closed contact SO1 of the protection for feed line measure and control device 1n is connected；The feeder line is protected
The leading-out terminal of second output terminal normally-closed contact SO1 for protecting measure and control device 1n is connected with zero curve, for closing by hand and it is long-range certainly
Dynamic circuit connector lock；
The end of incoming cables of the normally opened contact of the second button of power supply L connection SB2 is controlled, the normally opened contact of the second button SB2 goes out
The end of incoming cables of 4th normally opened contact 1QF-6 of line end connection first control contactor is connected；First control
The leading-out terminal of 4th normally opened contact 1QF-6 of contactor is connected with the coil end of incoming cables of first control contactor, institute
The finish lead for the first control contactor stated connects zero curve N；
Control the 5th endpoint of power supply L connection third conversion switch SA3 and the 6th endpoint pair with third conversion switch SA3
It answers；Third converts the third output end normally opened contact of protection for feed line measure and control device 1n described in the 6th endpoint connection of switch SA3
The end of incoming cables of PO2, the leading-out terminal and the second button of the third output end normally opened contact PO2 of the protection for feed line measure and control device 1n
The leading-out terminal of the normally opened contact of SB2 is in parallel；For manual brake separating and remote control separating brake control；
The end of incoming cables of the 4th output end normally opened contact PO3 of the power supply L connection protection for feed line measure and control device 1n is controlled,
Meanwhile the leading-out terminal of the 4th output end normally opened contact PO3 of the protection for feed line measure and control device 1n and the protection for feed line
The 5th output end normally opened contact PO4 of measure and control device 1n connects；The 5th output end of the protection for feed line measure and control device 1n is normal
The leading-out terminal for opening contact PO4 is in parallel with the leading-out terminal of normally opened contact of the second button SB2；For trip protection；
After the 6th output end connection resistance R1 for controlling the power supply L connection protection for feed line measure and control device 1n, with second
The leading-out terminal of the normally opened contact of button SB2 is in parallel；For trip circuit monitoring；
The end of incoming cables of the 7th output end normally opened contact SO4 of the power supply L connection protection for feed line measure and control device 1n is controlled,
The leading-out terminal of the 7th output end normally opened contact SO4 of the protection for feed line measure and control device 1n with it is normally opened with the second button SB2
The leading-out terminal of contact is in parallel；It is protected for undervoltage tripping；
Control the end of incoming cables of the 5th normally opened contact 1QF-7 of the first control contactor described in power supply L connection, described the
The leading-out terminal of 5th normally opened contact 1QF-7 of one control contactor connects the coil end of incoming cables of the second relay；Second relay
Finish lead connect zero curve N；
Control the end of incoming cables of the 8th output end normally opened contact PO5 of the power supply L connection protection for feed line measure and control device 1n；
The leading-out terminal connection of the 8th output end normally opened contact PO5 of the protection for feed line measure and control device 1n protection for feed line observing and controlling
The end of incoming cables of the 9th output end normally opened contact PO6 of device 1n；The 9th output end of the protection for feed line measure and control device 1n is normal
The leading-out terminal for opening contact PO6 connects the first indicator light HY；It is indicated for protection act.
In fig. 3, shown, it controls both ends between power supply L and zero curve N and connects multifunction electric meter PZ, based on electricity
Amount.
As the utility model preferred embodiment, it is obvious to a person skilled in the art that the utility model is unlimited
It, can in the details of above-mentioned exemplary embodiment, and without departing substantially from the spirit or essential attributes of the utility model
The utility model and the protection scope of the utility model are realized in other specific forms.Which point therefore, no matter come from
It sees, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by appended claims
Rather than above description limits, it is intended that by all changes that come within the meaning and range of equivalency of the claims capsule
It includes in the utility model.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of circuit using protection for feed line measure and control device, which is characterized in that including main circuit, main circuit control circuit；
The protection for feed line measure and control device further includes that protection for feed line measure and control device input terminal and protection for feed line measure and control device are defeated
Outlet；The first input end of the protection for feed line measure and control device connects first the first normally-closed contact of relay, is used for energy storage shape
State alarm input；Second input terminal of the protection for feed line measure and control device connects the first normally opened contact of the first breaker, uses
In control power supply status input；The third input terminal of the protection for feed line measure and control device to the 5th input terminal is successively separately connected
First normally opened contact of the first control contactor is respectively used to closing position, the work of the first control contactor to third normally opened contact
Make position and tests the state input of position；The 6th input terminal and the 7th input terminal of the protection for feed line measure and control device connect respectively
Connect mother cabinet normal operating conditions and mother cabinet fail operation state, the monitoring for mother cabinet working condition；The feedback
8th input terminal of line protection supervisory equipment connects the first change-over switch, inputs for transition status；The protection for feed line is surveyed
The 9th input terminal for controlling device connects the second control button, inputs for manual brake separating signal；The protection for feed line observing and controlling dress
The tenth input terminal set and the 11st input terminal are separately connected backup power source cabinet normal operating conditions and backup power source cabinet failure
Working condition, the monitoring for backup power source cabinet；Cabinet is pressed in the 12nd input terminal connection of the protection for feed line measure and control device
State output normally-closed contact is inputted for middle pressure cabinet state；
Several output ends, are connected in main circuit control circuit by the protection for feed line measure and control device output end respectively, use
In the opening and closing of control main circuit.
2. a kind of circuit using protection for feed line measure and control device as described in claim 1, which is characterized in that the main circuit
It further include the first control contactor, voltage transformer, current transformer, Surge Protector；Three phase mains is distinguished by fuse
It is connected with the end of incoming cables of the first control contactor main contacts, voltage transformer and Surge Protector；First control contactor master
The leading-out terminal of the leading-out terminal connection transformer of contact；The first control contactor leading-out terminal to the three phase mains between transformer
Upper setting current transformer；The leading-out terminal of Surge Protector connects ground line；Zero sequence transformer, zero sequence are set on the first zero curve
Mutual inductor is connected with the second zero curve of transformer and is connected to ground line.
3. a kind of circuit using protection for feed line measure and control device as described in claim 1, which is characterized in that the main circuit
The control power supply of control circuit connects the end of incoming cables of the second change-over switch, and the first control of end of incoming cables connection of the second change-over switch connects
The leading-out terminal of the end of incoming cables of the energy storage device of tentaculum, the energy storage device of the first control contactor connects zero curve；Meanwhile first controls
The normally opened contact of the energy storage device of contactor connects the end of incoming cables of the coil of the first relay；The outlet of the coil of first relay
End connection zero curve, the energy storage control of the energy storage device for the first control contactor；
Control the first end point and third endpoint of power supply L connection third conversion switch；And in the second endpoint of third conversion switch
It is correspondingly connected with the formation of the 4th endpoint；The second endpoint and the 4th endpoint of third conversion switch are separately connected the normally opened of the first button
The end of incoming cables of first output end of the end of incoming cables of contact and the protection for feed line measure and control device is connected；First button it is normal
The leading-out terminal for opening contact is in parallel with the leading-out terminal of the first output end, and the inlet wire with the first normally-closed contact of the first control contactor
End is connected, and the leading-out terminal of the first normally-closed contact of the first control contactor connects the inlet wire of the coil of the first control contactor
End, the second output terminal normally-closed contact of the leading-out terminal connection of the coil of the first control contactor protection for feed line measure and control device
End of incoming cables be connected；The leading-out terminal of the second output terminal normally-closed contact of the protection for feed line measure and control device is connected with zero curve
It connects, closes a floodgate for closing by hand and remote auto；
Control power supply connect the second button normally opened contact end of incoming cables, the normally opened contact of the second button leading-out terminal connection described in
The end of incoming cables of the 4th normally opened contact of the first control contactor be connected；4th normally opened touching of first control contactor
The leading-out terminal of point is connected with the coil end of incoming cables of first control contactor, the coil of first control contactor
Leading-out terminal connects zero curve；
5th endpoint of control power supply connection third conversion switch is simultaneously corresponding with the 6th endpoint that third conversion switchs；Third conversion
The end of incoming cables of the third output end normally opened contact of the 6th endpoint connection of the switch protection for feed line measure and control device, the feedback
The leading-out terminal of the third output end normally opened contact of line protection supervisory equipment is in parallel with the leading-out terminal of the normally opened contact of the second button；With
In manual brake separating and remote control separating brake control；
The end of incoming cables of the 4th output end normally opened contact of the power supply connection protection for feed line measure and control device is controlled, meanwhile, it is described
Protection for feed line measure and control device the 4th output end normally opened contact leading-out terminal and the protection for feed line measure and control device the 5th
The series connection of output end normally opened contact；The leading-out terminal of 5th output end normally opened contact of the protection for feed line measure and control device is pressed with second
The leading-out terminal of the normally opened contact of button is in parallel；For trip protection；
It is normally opened with the second button after the 6th output end connection resistance for controlling the power supply connection protection for feed line measure and control device
The leading-out terminal of contact is in parallel；For trip circuit monitoring；
Control the end of incoming cables of the 7th output end normally opened contact of the power supply connection protection for feed line measure and control device, the feeder line
The leading-out terminal of 7th output end normally opened contact of protection supervisory equipment is in parallel with the leading-out terminal of the normally opened contact of the second button；For
Undervoltage tripping protection；
Control the end of incoming cables of the 5th normally opened contact of power supply connection first control contactor, the first control contact
The leading-out terminal of 5th normally opened contact of device connects the coil end of incoming cables of the second relay；The finish lead of second relay connects
Zero curve；
Control the end of incoming cables of the 8th output end normally opened contact of the power supply connection protection for feed line measure and control device；The feeder line
9th output of the leading-out terminal connection of the 8th output end normally opened contact of the protection supervisory equipment protection for feed line measure and control device
Hold the end of incoming cables of normally opened contact；The leading-out terminal connection first of 9th output end normally opened contact of the protection for feed line measure and control device
Indicator light；It is indicated for protection act.
4. a kind of circuit using protection for feed line measure and control device as claimed in claim 3, which is characterized in that the control electricity
Both ends connect multifunction electric meter, the metering for electricity between source and zero curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821797539.4U CN209072048U (en) | 2018-11-02 | 2018-11-02 | A kind of circuit using protection for feed line measure and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821797539.4U CN209072048U (en) | 2018-11-02 | 2018-11-02 | A kind of circuit using protection for feed line measure and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209072048U true CN209072048U (en) | 2019-07-05 |
Family
ID=67097343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821797539.4U Active CN209072048U (en) | 2018-11-02 | 2018-11-02 | A kind of circuit using protection for feed line measure and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209072048U (en) |
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2018
- 2018-11-02 CN CN201821797539.4U patent/CN209072048U/en active Active
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