CN107645133A - Low-voltage distribution cabinet - Google Patents
Low-voltage distribution cabinet Download PDFInfo
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- CN107645133A CN107645133A CN201711014337.8A CN201711014337A CN107645133A CN 107645133 A CN107645133 A CN 107645133A CN 201711014337 A CN201711014337 A CN 201711014337A CN 107645133 A CN107645133 A CN 107645133A
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Abstract
The invention discloses a kind of low-voltage distribution cabinet, including：Cabinet；The electric power loop and distribution loop being arranged in the cabinet, the electric power loop are used to provide electric energy for the distribution loop, and the distribution loop is used to be allocated the electric energy that the electric power loop provides；The PLC control system being arranged in the cabinet, the PLC control system is communicated with computer managing and control system, the PLC control system is also communicated with the distribution loop, the PLC control system is used for the status information for gathering the distribution loop, and the status information of the distribution loop is uploaded to the computer managing and control system, so as to which low-voltage distribution cabinet can be communicated by network with central control level, it instead of the rigid line connected mode in correlation technique, greatly reduce wiring expense, reduce O＆M cost, improve the security of distribution system, stability, flexibility and the availability of height are also ensured simultaneously.
Description
Technical field
The present invention relates to electric and electronic technical field, more particularly to a kind of low-voltage distribution cabinet.
Background technology
In the distribution system of correlation, controller switching equipment mainly passes through breaker, contactor, relay, motor and electrician's instrument
Traditional electric elements such as table realize distribution, control, protection and function for monitoring.Also, field apparatus is needed by setting scene control
Match somebody with somebody electric control when case processed is to carry out overhaul of the equipments, wherein, field control case is typically mounted on field apparatus side, and is provided with
Multiple control buttons, can be realized by multiple control buttons equipment fault, need shutdown inspection when the operation such as manual start and stop.
In addition, the controlling cable of each field control case will be connected to low-voltage distribution cabinet, and low-voltage distribution cabinet and field apparatus with
And connected between central control level using rigid line.
Therefore, the problem of correlation technique is present is to have used substantial amounts of cable, so as to have wiring cost height, complexity
High, the problems such as trouble point is more, O＆M cost is added, and automaticity is low.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
Purpose is to propose a kind of low-voltage distribution cabinet, can reduce wiring cost, improve the stability of system.
To reach the purpose, the embodiment of the present invention, which proposes a kind of low-voltage distribution cabinet, to be included, cabinet；It is arranged on the cabinet
Internal electric power loop and distribution loop, the electric power loop are used to provide electric energy, the distribution loop for the distribution loop
Electric energy for providing the electric power loop is allocated；The PLC control system being arranged in the cabinet, the PLC controls
System processed is communicated with computer managing and control system, and the PLC control system is also communicated with the distribution loop, described
PLC control system is used for the status information for gathering the distribution loop, and the status information of the distribution loop is uploaded into institute
State computer managing and control system.
Low-voltage distribution cabinet according to embodiments of the present invention, sets PLC control system in low-voltage switch box body, passes through
PLC control system is communicated with distribution loop to gather the status information of distribution loop, and by PLC control system with calculating
Machine managing and control system is communicated and so that the status information of distribution loop is uploaded into computer managing and control system, so as to low-voltage distribution cabinet
It can be communicated by network with central control level, instead of the rigid line connected mode in correlation technique, greatly reduce cloth
Line expense, reduces O＆M cost, improves security, the stability of distribution system, while also ensures the flexibility of height
And availability.
According to one embodiment of present invention, the PLC control system also receives what the computer managing and control system was sent
Control command, and the distribution loop is controlled according to the control command.
According to one embodiment of present invention, low-voltage distribution cabinet also includes：Electric power detection module, the electric power detection module
It is connected with the PLC control system, the electric power detection module is used for the information about power for detecting the distribution loop, and by described in
The information about power of distribution loop is sent to the PLC control system, with by the PLC control system by the distribution loop
Information about power is uploaded to the computer managing and control system.
According to one embodiment of present invention, the distribution loop is included in breaker, contactor and electrothermal relay extremely
Few one kind, the secondary circuit of the breaker, contactor and electrothermal relay are connected to the PLC control system, the PLC controls
System is by the secondary circuit of the breaker, contactor and electrothermal relay to the breaker, contactor and electrothermal relay
On or off is controlled.
Specifically, according to one embodiment of present invention, the distribution loop also includes：Motor protecter, the motor
Protector is communicated with the PLC control system so that the PLC control system is controlled to the motor protecter, institute
Motor protecter is stated also by the status information feedback of the motor protecter to the PLC control system；Frequency converter, the frequency conversion
Device is communicated with the PLC control system so that the PLC control system is controlled to the frequency converter, the frequency converter
Also give the status information feedback of the frequency converter to the PLC control system.
According to one embodiment of present invention, the distribution loop also includes：Soft initiator, the soft initiator with it is described
PLC control system is communicated, so that the PLC control system is controlled to the soft initiator, the soft initiator is also
Give the status information feedback of the soft initiator to the PLC control system；Low-voltage comprehensive-protection, the low-voltage comprehensive-protection and the PLC
Control system is communicated, so that the PLC control system is controlled to the low-voltage comprehensive-protection, the low-voltage comprehensive-protection is also by institute
The status information feedback of low-voltage comprehensive-protection is stated to the PLC control system.
According to one embodiment of present invention, the PLC control system is also communicated with field control post, the scene
Control column is connected with multiple equipment, and the control command that the PLC control system also sends the computer managing and control system forwards
To the field control post, so that the field control post is controlled according to the control command to the multiple equipment.
According to one embodiment of present invention, the field control post is also monitored to the multiple equipment to generate prison
Data are surveyed, and the Monitoring Data is uploaded to the computer managing and control system by the PLC control system.
According to one embodiment of present invention, the electric power loop includes isolating transformer, and the isolating transformer is used for
It is second source by the first power conversion, to provide electric energy for the distribution loop.
According to one embodiment of present invention, the low-voltage distribution cabinet also includes：Insulating monitoring unit, the insulating monitoring
Unit is communicated with the PLC control system, and the insulating monitoring unit is used for the insulation shape for monitoring the low-voltage distribution cabinet
State, and the state of insulation is passed through into the PLC control system last time to the computer managing and control system.
According to one embodiment of present invention, can be used between the PLC control system and the computer managing and control system
EPA communication mode is communicated.
According to one embodiment of present invention, the PLC control system and the distribution loop and the field control post
Between can be communicated using field bus communication mode.
According to one embodiment of present invention, the cabinet can be drawout cubicle, fixed separated cabinet or fixed cabinet.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the time of the present invention.
Brief description of the drawings
Fig. 1 is the block diagram of low-voltage distribution cabinet according to embodiments of the present invention；
Fig. 2 is the block diagram of low-voltage distribution cabinet according to an embodiment of the invention；
Fig. 3 is the block diagram of distribution loop in low-voltage distribution cabinet according to an embodiment of the invention；
Fig. 4 is the block diagram according to the low-voltage distribution cabinet of another embodiment of the invention；
Fig. 5 is the block diagram of electric power loop in low-voltage distribution cabinet according to an embodiment of the invention；And
Fig. 6 is the block diagram according to the low-voltage distribution cabinet of further embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below in conjunction with the accompanying drawings come describe the embodiment of the present invention proposition low-voltage distribution cabinet.
Fig. 1 is the block diagram of low-voltage distribution cabinet according to embodiments of the present invention.As shown in figure 1, the low-voltage distribution cabinet
100 include：Cabinet (not shown), electric power loop 13, distribution loop 12 and PLC control system 11.
Wherein, electric power loop 13 and distribution loop 12 are arranged in cabinet, and electric power loop 13 is used to carry for distribution loop 12
Power supply energy, distribution loop 12 are used to be allocated the electric energy that electric power loop 13 provides；PLC control system 11 is arranged on cabinet
Interior, PLC control system 11 is communicated with computer managing and control system 200, and PLC control system 11 is also led to distribution loop 12
Letter, PLC control system 11 is used for the status information for gathering distribution loop 12, and the status information of distribution loop 12 is uploaded into meter
Calculation machine managing and control system 200.
It should be noted that distribution loop 12 is allocated the electric energy that electric power loop 13 provides to supply outside electricity consumption
Equipment such as field apparatus, electric energy distribution may include to open electric energy supply, suspend electric energy supply and terminate electric energy supply etc., i.e.,
Speech, distribution loop 12 are used to supply control by electric energy to carry out distribution for external electric equipment or stop distribution.Also, PLC
Control system 11 gathers distribution loop 12 and supplies situation to the electric energy of external electric equipment, and in other words, PLC control system 11 gathers
The status information of distribution loop 12 will be collected to external electric equipment for example to the power status of external electric equipment
Power status is uploaded to computer managing and control system 200, so that computer managing and control system 200 monitors the state letter of distribution loop 12
Breath.
Specifically, electric power loop 13 is provided with the cabinet of low-voltage distribution cabinet 100, electric power loop 13 is to distribution loop 12
It is powered, distribution loop 12 supplies external electric equipment after the electric energy that electric power loop 13 provides is allocated.Low-voltage distribution
PLC control system 11 is additionally provided with the cabinet of cabinet 100, PLC control system 11 gathers distribution loop 12 and gives external electric equipment
The status information of distribution, the status information is then uploaded to computer managing and control system 200.For example, low-voltage distribution cabinet 100
External electric equipment is connected with, if the electric energy of electric power loop 13 is distributed to outside by distribution loop 12 in low-voltage distribution cabinet 100
Electrical equipment, then external electric equipment obtain electric, now PLC control system 11 can collect the state to external electric equipment distribution
Information is simultaneously uploaded to computer managing and control system 200；If distribution loop 12 stops electric power loop 13 in low-voltage distribution cabinet 100
Electric energy is distributed to external electric equipment and is powered, then external electric equipment power off, now PLC control system 11 can gather not to
The status information of external electric equipment distribution is simultaneously uploaded to computer managing and control system 200, and then computer managing and control system 200 can supervise
Measure the status information of distribution loop 12.
Thus, low-voltage distribution cabinet can be communicated by network with central control level, can send distribution loop 12 in real time
Status information, and instead of the rigid line connected mode in correlation technique, greatly reduce wiring expense, reduce O＆M into
This, improves security, the stability of distribution system, while also ensure flexibility and the availability of height.
Further, according to one embodiment of present invention, PLC control system 11 can also receive computer managing and control system
200 control commands sent, and distribution loop 12 is controlled according to control command.
It should be noted that control command refers to control distribution loop 12 to carry out external electric equipment distribution or stop matching somebody with somebody
The order of electricity, that is, say, if control command is opens distribution order, PLC control system 11 controls distribution loop 12 to outside
Electrical equipment distribution, if control command is stops distribution order, PLC control system 11 controls distribution loop 12 to stop externally
Portion's electrical equipment distribution.
Specifically, the PLC control system 11 set in low-voltage distribution cabinet 100 can gather distribution loop 12 in real time to outside
The status information of electrical equipment distribution, and the status information is uploaded to computer managing and control system 200.Also, computer management and control
System 200 generates control command always according to the information received, and control command is sent into PLC control system 11, PLC controls
System 11 can also receive the control command of the transmission of computer managing and control system 200, when the control life that computer managing and control system 200 is sent
Order be change distribution loop 12 at present to the power status of external electric equipment when, PLC control system 11 can order according to the control
Order is controlled to distribution loop 12, to change the power status to external electric equipment.
For example, when distribution loop 12 carries out distribution to external electric equipment, PLC control system 11 can be according to compliant tube
The control command for the change power status that control system 200 is sent controls distribution loop 12 to stop to external electric equipment distribution, so
After PLC control system 11 gathers the status information that distribution loop 12 stops distribution to external electric equipment afterwards, outside will can be used
The status information that electric equipment stops distribution being uploaded to computer managing and control system 200.And for example, when distribution loop 12 is set to outside electricity consumption
During standby stopping distribution, PLC control system 11 can be according to the control command for the change power status that computer managing and control system 200 is sent
Distribution loop 12 is controlled to carry out distribution to external electric equipment, then PLC control system 11 gathers distribution loop 12 and used outside
After electric equipment carries out the status information of distribution, the status information that distribution is carried out to external electric equipment can be uploaded to compliant tube
Control system 200.
According to one embodiment of present invention, as shown in Fig. 2 low-voltage distribution cabinet 100 also includes electric power detection module 14, electricity
Amount detection module 14 is connected with PLC control system 11, and electric power detection module 14 is used for the information about power for detecting distribution loop 12, and
The information about power of distribution loop 12 is sent to PLC control system 11, with by PLC control system 11 by the electricity of distribution loop 12
Amount information is uploaded to computer managing and control system 200.
It should be noted that the information about power of distribution loop 12 can assign what electrical circuit 12 was distributed external electric equipment
The information about power such as voltage, electric current.Wherein, electric power detection module 14 can be multifunctional electric meter.
Specifically, electric power detection module 14 detects voltage, the electric current that distribution loop 12 is distributed external electric equipment
PLC control system 11 is sent to Deng information about power, and by the information about power of detection, then is returned distribution by PLC control system 11
The information about power on road 12 is uploaded to computer managing and control system 200, so that PLC control system 11 and/or computer managing and control system 200
The information about power such as the voltage of monitoring distribution loop 12, electric current in real time, and make PLC control system 11 and/or computer managing and control system
200 are judged and are generated to the distribution situation of distribution loop 12 according to information about power such as the voltage of distribution loop 12, electric currents
Control command etc..
Further, according to one embodiment of present invention, distribution loop 12 includes breaker, contactor and electrothermal relay
At least one of, the secondary circuit of breaker, contactor and electrothermal relay is connected to PLC control system 11, PLC control system
11 on or off by the secondary circuit of breaker, contactor and electrothermal relay to breaker, contactor and electrothermal relay
It is controlled.
It should be noted that the secondary circuit of breaker, contactor and electrothermal relay, which is connected to PLC, can refer to open circuit
Switching value access PLC control system 11 in the secondary circuit of device, contactor and electrothermal relay, i.e. PLC control system 11 pass through
The conducting to breaker, contactor and electrothermal relay of switching value in the secondary circuit of breaker, contactor and electrothermal relay or
Shut-off is controlled.
Thus, the low-voltage distribution cabinet 100 of the embodiment of the present invention, by the secondary circuit of breaker, contactor and electrothermal relay
In switching value access PLC control system 11, while configure such as multifunctional electric meter of electric power detection module 14 and with PLC control
System 11 processed communicates, and can reach makes the intelligentized purpose of distribution loop.
According to one embodiment of present invention, as shown in figure 3, distribution loop 12 also includes motor protecter 121, motor is protected
Shield device 121 is communicated with PLC control system 11 so that PLC control system 11 is controlled to motor protecter 121, and motor is protected
Device 121 is protected also by the status information feedback of motor protecter 121 to PLC control system 11.Distribution loop 12 also includes frequency converter
122, frequency converter 122 is communicated with PLC control system 11 so that PLC control system 11 is controlled to frequency converter 122, frequency conversion
Device 122 is also by the status information feedback of frequency converter 122 to PLC control system 11.Distribution loop 12 also includes soft initiator 123,
Soft initiator 123 is communicated with PLC control system 11, so that PLC control system 11 is controlled to soft initiator 123, it is soft
Starter 123 is also by the status information feedback of soft initiator 123 to PLC control system 11；Distribution loop 12 also includes low-voltage comprehensive
124 are protected, low-voltage comprehensive-protection 124 is communicated with PLC control system 11, so that PLC control system 11 is controlled to low-voltage comprehensive-protection 124
System, low-voltage comprehensive-protection 124 is also by the status information feedback of low-voltage comprehensive-protection 124 to PLC control system 11.
Specifically, distribution loop 12 also includes motor protecter 121, with the communication mode of distribution loop 12 similarly, electricity
Machine protector 121 is communicated with PLC control system 11 so that PLC control system 11 is controlled to motor protecter 121, electricity
Machine protector 121 also by the status information feedback of motor protecter 121 to PLC control system 11 so that PLC control system 11
Motor protecter 121 is controlled according to the status information of motor protecter 121；Distribution loop 12 also includes frequency converter 122, with
Similarly, frequency converter 122 is communicated the communication mode of distribution loop 12 with PLC control system 11 so that PLC control system 11 is right
Frequency converter 122 is controlled, frequency converter 122 also by the status information feedback of frequency converter 122 to PLC control system 11 so that PLC
Control system 11 is controlled according to the status information of frequency converter 122 to frequency converter 122.Distribution loop 12 also includes soft initiator
123, soft initiator 123 is communicated with PLC control system 11 with the communication mode of distribution loop 12 similarly, so that PLC is controlled
System 11 is controlled to soft initiator 123, and soft initiator 123 also controls the status information feedback of soft initiator 123 to PLC
System 11, so that PLC control system 11 is controlled according to the status information of soft initiator 123 to soft initiator 123；Distribution returns
Road 12 also includes low-voltage comprehensive-protection 124, and, low-voltage comprehensive-protection 124 enters with PLC control system 11 with the communication mode of distribution loop 12 similarly
Row communication, so that PLC control system 11 is controlled to low-voltage comprehensive-protection 124, low-voltage comprehensive-protection 124 is also by the shape of low-voltage comprehensive-protection 124
State feedback of the information to PLC control system 11 so that PLC control system 11 according to the status information of low-voltage comprehensive-protection 124 to low-voltage comprehensive
124 are protected to be controlled.
According to one embodiment of present invention, as shown in figure 4, PLC control system 11 is also led to field control post 300
Letter, field control post 300 are connected with multiple equipment, and the control that PLC control system 11 also sends computer managing and control system 200 is ordered
Order is transmitted to field control post 300, so that field control post 300 is controlled according to control command to multiple equipment.
It should be noted that field control post 300 has unlatching, pause or the closing of control device such as field apparatus
Function, in other words, PLC control system 11 receive the control command that computer managing and control system 200 is sent and are transmitted to field control post
300, field control post 300 controls the multiple equipment of connection to open, suspend or close according to control command.
Further, according to one embodiment of present invention, field control post 300 is also monitored with life to multiple equipment
Computer managing and control system 200 is uploaded to by PLC control system 11 into Monitoring Data, and by Monitoring Data.
Specifically, field control post 300 also has monitoring function, i.e., the multiple equipment connected to field control post 300
It can be monitored and generate Monitoring Data, while Monitoring Data is uploaded to computer management and control system by PLC control system 11
System 200.For example, field control post 300 can monitor the Monitoring Datas such as the temperature of external electric equipment, vibration signal, and will monitoring
Monitoring Data be sent to PLC control system 11, the Monitoring Data of field control post 300 is uploaded to by PLC control system 11 again
Computer managing and control system 200, so that PLC control system 11 and/or the real-time monitoring field control column of computer managing and control system 200
The Monitoring Datas such as 300 temperature, vibration signal, and make PLC control system 11 and/or computer managing and control system 200 according to scene
The Monitoring Datas such as the temperature of control column 300, vibration signal are judged the Monitoring Data of field control post 300 and generated control
System order etc..
Thus, the low-voltage distribution cabinet 100 of the embodiment of the present invention, motor protecter 121, frequency conversion are configured with distribution loop 12
The intelligent electric equipment such as device 122, soft initiator 123 and low-voltage comprehensive-protection 124, so as to pass through aforementioned intelligent electrical equipment and PLC
Communication between control system 11 carries out intelligent control to equipment, distribution loop is reached intelligentized purpose.
According to one embodiment of present invention, as shown in figure 5, electric power loop 13 includes isolating transformer 131, transformation is isolated
It is second source that device 131, which is used for the first power conversion, to provide electric energy for distribution loop 12.
It should be noted that 380VAC/220VAC isolating transformer 131 can be provided with low-voltage distribution cabinet 100, will
380V alternating currents are converted to 220V alternating currents, and power supply and other 220VAC are controlled to provide 220VAC for low-voltage distribution cabinet 100
Power supply.
Also, as shown in fig. 6, low-voltage distribution cabinet 100 also includes：Insulating monitoring unit 15, insulating monitoring unit 15 and PLC
Control system 11 is communicated, and insulating monitoring unit 15 is used to monitoring the state of insulation of low-voltage distribution cabinet 100, and by state of insulation
Pass through the last time of PLC control system 11 to computer managing and control system 200.Thus, low-voltage distribution cabinet 100 of the present invention can be applied to TN
System (zero potential protection system) and IT system (isolated neutral system).
Further, according to one embodiment of present invention, between PLC control system 11 and computer managing and control system 200
It can be communicated using EPA communication mode.It should be appreciated that it can be selected not according to the communication module of different manufacturers
Same industrial ethernet protocol.
Thus, communicated, can subtracted significantly by EPA between PLC control system 11 and computer managing and control system 200
Few wiring cost, improve the stability of system.
Further, according to embodiment of the invention one, PLC control system 11 and distribution loop 12 and field control post
It can be communicated between 300 using field bus communication mode.It should be appreciated that it can be selected according to the communication module of different manufacturers
Select different field bus protocols such as MODBUS agreements.
Thus, low-voltage distribution cabinet 100 is connected with field control post 300 by a bus cable, can be subtracted significantly
Few wiring cost, improve the stability of system.
Further, according to one embodiment of present invention, cabinet can be drawout cubicle, fixed separated cabinet or fix cabinet, but
Not limited to this.
According to the specific embodiment of the present invention, PLC control system 11 includes power module, processing module, signal mode
Block and Communication processing module etc., but not limited to this, it can be adjusted flexibly according to field working conditions.Wherein, power module is used for
To electric power loop 13 provide electric energy changed to be converted to predetermined DC electricity such as 12V, 5V, so as to for processing module,
Signal input/output module and Communication processing module etc. are powered.
As described above, PLC control system 11 can be by the status information of distribution loop 12 and the Monitoring Data example of field apparatus
As state of insulation feedback, power supply feedback, equipment state feedback, failure feedback etc. upload to computer management and control by EPA
System 200, also, the control command of the transmission of computer managing and control system 200 can be received, and by field control post 300 to corresponding
Equipment be controlled.In other words, PLC control system 11 is communicated with computer managing and control system 200, is opened, stopped, closed with reception
Etc. control command, and according to control command implement to open automatically, stop, closing etc. and to operate, while can also be sent out to computer managing and control system 200
Send real time information.
Also, PLC control system 11 itself can also generate control command, and by field control post 300 by control command
Equipment is sent to be controlled to corresponding equipment, such as all kinds of control panels such as valve, pump, blower fan are controlled and adjusted
Section.
In addition, PLC control system 11 is protected by multifunctional electric meter, motor in fieldbus and low-voltage distribution cabinet 100
Shield device 121, frequency converter 122, soft initiator 123 and low-voltage comprehensive-protection 124 and execute-in-place post 300 are communicated, and can gather electricity
The status information of amount and non-electrical parameter and equipment.Thus, PLC control system 11 can carry out data sampling and processing, and according to
The data collected carry out system diagnostics, running state recognition, failure multiple protective and self-test etc..
For example, external electric equipment can be motor, and when low-voltage distribution cabinet 100 is motor distribution, PLC control system 11
According to the control command for the progress distribution that computer managing and control system 200 is sent distribution loop 12 can be controlled to carry out distribution to motor,
I.e. PLC control system 11 controls the contactor in distribution loop 12 to connect the circuit to motor distribution, then PLC control system 11
The status information that collection distribution loop 12 carries out distribution to motor is uploaded to computer managing and control system 200.Meanwhile low-voltage distribution cabinet
100 electric power detection module 14 can detect the information about power such as voltage in distribution loop 12 to motor distribution line, electric current and will
The information about power is sent to PLC control system 11, to be uploaded to the information about power of distribution loop 12 by PLC control system 11
Computer managing and control system 200.
Also, field control post 300 can be monitored to obtain Monitoring Data to the temperature of motor, vibration signal etc., and
The Monitoring Data of monitoring is sent to PLC control system 11, then by PLC control system 11 by the monitoring of field control post 300
Data are uploaded to computer managing and control system 200, so that 200 real-time monitoring field of PLC control system and/or computer managing and control system
The Monitoring Datas such as the temperature of control column 300, vibration signal.What computer managing and control system 200 can upload according to PLC control system 11
Data are monitored and generate control command, such as generation control distribution loop 12 changes the control command of power status, concurrently
PLC control system 11 is given, PLC control system 11 can be according to the control for the change power status that computer managing and control system 200 is sent
System order control distribution loop 12 stops external electrical equipment motor distribution.
To sum up, low-voltage distribution cabinet according to embodiments of the present invention, sets PLC control system in low-voltage switch box body,
Communicated by PLC control system with distribution loop to gather the status information of distribution loop, and by PLC control system with
Computer managing and control system is communicated and so that the status information of distribution loop is uploaded into computer managing and control system, so as to which low pressure is matched somebody with somebody
Electric cabinet can be communicated by network with central control level, be instead of the rigid line connected mode in correlation technique, is greatly reduced
Wiring expense, reduces O＆M cost, improves security, the stability of distribution system, while also ensure the spirit of height
Activity and availability.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (13)
- A kind of 1. low-voltage distribution cabinet, it is characterised in that including：Cabinet；The electric power loop and distribution loop being arranged in the cabinet, the electric power loop are used to provide electricity for the distribution loop Can, the distribution loop is used to be allocated the electric energy that the electric power loop provides；The PLC control system being arranged in the cabinet, the PLC control system are communicated with computer managing and control system, institute State PLC control system also to be communicated with the distribution loop, the PLC control system is used for the shape for gathering the distribution loop State information, and the status information of the distribution loop is uploaded to the computer managing and control system.
- 2. low-voltage distribution cabinet according to claim 1, it is characterised in that the PLC control system also receives the calculating The control command that machine managing and control system is sent, and the distribution loop is controlled according to the control command.
- 3. low-voltage distribution cabinet according to claim 1, it is characterised in that also include：Electric power detection module, the electric power detection module are connected with the PLC control system, and the electric power detection module is used to examine The information about power of the distribution loop is surveyed, and the information about power of the distribution loop is sent to the PLC control system, with logical Cross the PLC control system and the information about power of the distribution loop is uploaded to the computer managing and control system.
- 4. low-voltage distribution cabinet according to claim 1 or 2, it is characterised in that the distribution loop includes breaker, contact At least one of device and electrothermal relay, the secondary circuit of the breaker, contactor and electrothermal relay are connected to the PLC controls System processed, the PLC control system by the secondary circuit of the breaker, contactor and electrothermal relay to the breaker, The on or off of contactor and electrothermal relay is controlled.
- 5. low-voltage distribution cabinet according to claim 4, it is characterised in that the distribution loop also includes：Motor protecter, the motor protecter is communicated with the PLC control system so that the PLC control system is to institute State motor protecter to be controlled, the motor protecter also gives the status information feedback of the motor protecter to the PLC Control system；Frequency converter, the frequency converter is communicated with the PLC control system so that the PLC control system is to the frequency converter It is controlled, the frequency converter also gives the status information feedback of the frequency converter to the PLC control system.
- 6. low-voltage distribution cabinet according to claim 5, it is characterised in that the distribution loop also includes：Soft initiator, the soft initiator are communicated with the PLC control system, so that the PLC control system is to described Soft initiator is controlled, and the soft initiator also gives the status information feedback of the soft initiator to the PLC control system；Low-voltage comprehensive-protection, the low-voltage comprehensive-protection are communicated with the PLC control system, so that the PLC control system is to described Low-voltage comprehensive-protection is controlled, and the low-voltage comprehensive-protection also gives the status information feedback of the low-voltage comprehensive-protection to the PLC control system.
- 7. low-voltage distribution cabinet according to claim 1, it is characterised in that the PLC control system also with field control post Communicated, the field control post is connected with multiple equipment, and the PLC control system also sends out the computer managing and control system The control command sent is transmitted to the field control post so that the field control post according to the control command to the multiple Equipment is controlled.
- 8. low-voltage distribution cabinet according to claim 7, it is characterised in that the field control post is also to the multiple equipment It is monitored to generate Monitoring Data, and the Monitoring Data is uploaded to the compliant tube by the PLC control system Control system.
- 9. low-voltage distribution cabinet according to claim 1, it is characterised in that the electric power loop includes isolating transformer, institute State isolating transformer and be used to the first power conversion be second source, to provide electric energy for the distribution loop.
- 10. low-voltage distribution cabinet according to claim 1, it is characterised in that also include：Insulating monitoring unit, the insulating monitoring unit are communicated with the PLC control system, and the insulating monitoring unit is used In the state of insulation for monitoring the low-voltage distribution cabinet, and by the state of insulation by the PLC control system last time to described Computer managing and control system.
- 11. low-voltage distribution cabinet according to claim 1, it is characterised in that the PLC control system and the compliant tube Communicated between control system using EPA communication mode.
- 12. low-voltage distribution cabinet according to claim 1, it is characterised in that the PLC control system and the distribution loop Communicated between the field control post using field bus communication mode.
- 13. low-voltage distribution cabinet according to claim 1, it is characterised in that the cabinet be drawout cubicle, fixed separated cabinet or Fixed cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711014337.8A CN107645133A (en) | 2017-10-25 | 2017-10-25 | Low-voltage distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711014337.8A CN107645133A (en) | 2017-10-25 | 2017-10-25 | Low-voltage distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN107645133A true CN107645133A (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711014337.8A Pending CN107645133A (en) | 2017-10-25 | 2017-10-25 | Low-voltage distribution cabinet |
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| CN (1) | CN107645133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955189A (en) * | 2019-12-07 | 2020-04-03 | 国网辽宁省电力有限公司电力科学研究院 | Control system and method for electric operating mechanism for 10kV power distribution switch cabinet |
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Application publication date: 20180130 |