CN206281921U - The positioner of failure in cabinet control loop - Google Patents
The positioner of failure in cabinet control loop Download PDFInfo
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- CN206281921U CN206281921U CN201621475731.2U CN201621475731U CN206281921U CN 206281921 U CN206281921 U CN 206281921U CN 201621475731 U CN201621475731 U CN 201621475731U CN 206281921 U CN206281921 U CN 206281921U
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- down rectifier
- positioning unit
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Abstract
The utility model discloses a kind of positioner of failure in cabinet control loop, it is made up of one or more positioning units；Each positioning unit includes the first step-down rectifier module, not gate and door, trigger and fault alarm unit；In each positioning unit, the input of the first step-down rectifier module connects a fault detecting point of cabinet control loop, the output end of the first step-down rectifier module connects the input of not gate, output end connection and one input of door of not gate, electrical equipment answer signal feedback end is connected by the second step-down rectifier module with another input of door, one input of trigger is connected with gate output terminal, another input connection reset circuit of trigger, the output end connecting fault alarm unit of trigger, fault alarm unit is controlled by exporting high level or low level carries out alert operation；The utility model can quickly and accurately orient the failure in cabinet control loop.
Description
Technical field
The utility model is related to electrical engineering technical field, failure in more particularly to a kind of cabinet control loop
Positioner.
Background technology
Cabinet is a kind of conventional power equipment, is widely used in power domain.Cabinet is power transformation
Quantity at most, operates most frequent and fault rate highest equipment in standing, and the failure of cabinet control loop account for
More than the 99% of whole switch cubicle.
The start and stop of cabinet are by DCS (Distributed Control System, distributed AC servo system system in cement plant
System) control, using live, middle control two places control mode.Wherein cabinet control loop uses AC220V voltages, via electricity
The electrical equipments such as machine protector, live switch, interlocking switch, fuse and electrothermal relay drive main contactor closure or disconnect,
To reach the purpose of control device start and stop.Above electrical equipment install at the scene, the position such as switch cubicle and DCS cabinets, via cable
Connection interlocking, if cable failure will all cause equipment stop jumping at one of element or one, but is difficult to judge rapidly
The error of failure, therefore maintenance difficulty is larger, can produce large effect to the operating efficiency in cement plant.
For example occur suddenly stop jumping without reason in normal course of operation when cement plant cement grinding roller press bucket is carried, cause cement
Grinding system is shut down, and middle control DCS displaying scenes can start shooting again without being ready for after reset.Now artificial analysis failure is possible to open
Close the misoperations such as fuse in cabinet, electrothermal relay, auxiliary reclay failure, live switch, speed measurement switch, it is also possible to be circuit
The reason for loose contact, causes.To analyze specific trouble point, now need artificially to give switch cubicle a thorough inspection, to institute
There is circuit binding post to check, fastening, and the original paper of be likely to cause failure is changed.Such breakdown judge side
Formula, will take for substantial amounts of manpower and materials, greatly reduce cement operating efficiency long.Some electrical equipments or circuit are gone out in addition
Existing loose contact or unstable situation, signal can produce fluctuation, maintenance personal using universal meter and electroscope would become hard to accurately,
Quick failure judgement point；And the hand-held universal meter of maintenance personal and electroscope only have about 20 centimetres apart from the powered positions of 220V,
There is larger potential safety hazard.
Utility model content
The purpose of this utility model is the shortcoming and deficiency for overcoming prior art, there is provided a kind of cabinet is controlled back
The positioner of failure in road, the positioner can quickly and accurately orient the event in cabinet control loop
Barrier, reduces the maintenance difficulty of cabinet control loop.
The purpose of this utility model is achieved through the following technical solutions：Failure determines in a kind of cabinet control loop
Position device, is made up of one or more positioning units；
Described each positioning unit includes the first step-down rectifier module, not gate and door, trigger and fault alarm unit；
In each positioning unit, one of the input connection cabinet control loop of the first step-down rectifier module
Fault detecting point, the output end of the first step-down rectifier module connects the input of not gate, the output end connection of not gate and door its
In an input, and the output end that another input of door is connected the second step-down rectifier module, the second step-down rectifier module
Input connects electrical equipment answer signal feedback end, and trigger is connected with the output end of door puts an input, trigger
Zero setting input connects reset circuit, and reset zero setting is carried out to trigger by reset circuit；The output end connecting fault of trigger
Alarm unit, alert operation is carried out by the high level control fault alarm unit for exporting.
Preferably, fault alarm unit includes contactor and light emitting diode, one group of the two of coil terminals of contactor
The output end and ground of trigger are connected respectively, by the working condition of the output control contactor of trigger；
It is grounded after dc source series contactor a pair of contact and light emitting diode；By the working condition control of contactor
The light on and off of light emitting diode processed.
Preferably, reset circuit includes reset switch, electrochemical capacitor and resistance, and the zero setting input of wherein trigger passes through
Resistance eutral grounding, the zero setting input of trigger connects dc source by reset switch and electrochemical capacitor in parallel, is opened by reset
Pass carries out reset zero setting to trigger.
Preferably, the trigger is rest-set flip-flop or JK flip-flop.
Preferably, in each positioning unit, is connected between the first step-down rectifier module and not gate input
One photoelectrical coupler, the second step-down rectifier module and is connected with the second photoelectrical coupler between door input；
When the number of positioning unit is for multiple, second step-down rectifier being connected with door input of each positioning unit
Module is same, and the reset circuit of the trigger connection of each positioning unit is same.
The purpose of this utility model is also achieved through the following technical solutions：Failure in a kind of cabinet control loop
Positioner, is made up of one or more positioning units；
Described each positioning unit includes the first step-down rectifier module, not gate and door, trigger and fault alarm unit；
In each positioning unit, one of the input connection cabinet control loop of the first step-down rectifier module
Fault detecting point, the output end of the first step-down rectifier module connects the input of not gate, the output end connection of not gate and door its
In an input；With the output end that another input of door is connected the second step-down rectifier module, the second step-down rectifier module it is defeated
Enter end connection electrical equipment answer signal feedback end, be connected the zero setting input of trigger with the output end of door, trigger is put
One input connects reset circuit, carries out reset to trigger by reset circuit and puts one；The output end connecting fault report of trigger
Alert unit, alert operation is carried out by the low level control fault alarm unit for exporting.
Preferably, fault alarm unit includes contactor and light emitting diode, one group of the two of coil terminals of contactor
The output end and power supply of trigger are connected respectively, by the working condition of the output control contactor of trigger；Direct current
It is grounded after source-series contactor a pair of contact and light emitting diode, by the working state control light emitting diode of contactor
Light on and off.
Preferably, reset circuit includes reset switch, electrochemical capacitor and resistance, and an input of putting of wherein trigger passes through
Resistance eutral grounding a, input of putting of trigger connects dc source by reset switch and electrochemical capacitor in parallel, is opened by reset
Pass resets to trigger.
Preferably, in each positioning unit, is connected between the first step-down rectifier module and not gate input
One photoelectrical coupler, the second step-down rectifier module and is connected with the second photoelectrical coupler between door input；
When the number of positioning unit is for multiple, second step-down rectifier being connected with door input of each positioning unit
Module is same, and the reset circuit of the trigger connection of each positioning unit is same.
Preferably, the trigger is rest-set flip-flop or JK flip-flop.
The utility model has the following advantages and effect relative to prior art：
(1) positioning unit of the utility model positioner includes the first step-down rectifier module, not gate and door, trigger
And fault alarm unit；One failure inspection of the input connection cabinet control loop of wherein the first step-down rectifier module
Measuring point, the output end of the first step-down rectifier module connects the input of not gate, the output end connection of not gate and door one of them
Input；Electrical equipment answer signal feedback end is connected by the second step-down rectifier module with another input of door, with door
Output end connects one of input of trigger, another input connection reset circuit of trigger, by reset circuit
Trigger is resetted, the output end connecting fault alarm unit of trigger is controlled by exporting high level or low level
Fault alarm unit carries out alert operation.When the cabinet control loop that positioning unit the first step-down rectifier module is connected
Fault detecting point when breaking down, the fault alarm unit of positioning unit carries out alert operation, therefore the utility model can be with
Whether the fault alarm unit according to positioning unit carries out alert operation, confirms that positioning unit the first step-down rectifier module connects
Whether the fault detecting point of the cabinet control loop for connecing breaks down, with fault recognition is quick and accurate advantage.
Other the utility model positioner can include multiple positioning units, wherein the first step-down rectifier module difference of positioning unit
Being connected to cabinet control loop needs to carry out the place of fault detect, when a failure occurs, the connected positioning of correspondence
The fault alarm unit of unit will carry out alert operation, and the utility model passes through multiple positioning units can realize electric switch
Detected while cabinet control loop multiple trouble point, substantially increase the operating efficiency of fault detect.Overcome in the prior art
Cabinet control loop fault detection efficiency is low, difficulty big and there is the technical problem of potential safety hazard.
(2) fault alarm unit has contactor and light emitting diode structure in the positioning unit of the utility model positioner
Into the trigger of positioning unit drives the work of light emitting diode, operating personnel's root by the working condition of control contactor
Whether light on and off according to light emitting diode can intuitively judge break down.
(3) in the utility model positioner, when positioning unit for it is multiple when, each positioning unit with door input institute
Second step-down rectifier module of connection for same, the reset circuit of the trigger connection of each positioning unit be it is same, greatly
The structure of the utility model positioner is simplified greatly, and the utility model positioner is enabled to by such structure
Each positioning unit realize simultaneously start and reset simultaneously, simplify operating process.
Brief description of the drawings
Fig. 1 is the structure chart of each positioning unit in the positioner of embodiment 1 in the utility model.
Fig. 2 is the positioning device structure figure of embodiment 1 in the utility model.
Fig. 3 is each fault alarm corresponding with each positioning unit in the positioner of embodiment 2 of embodiment 1 in the utility model
Cell schematics.
Fig. 4 is the cabinet control loop schematic diagram of common electric machine WE07.
Fig. 5 is the structure chart of each positioning unit in the positioner of embodiment 2 in the utility model.
Fig. 6 is the positioning device structure figure of embodiment 2 in the utility model.
Specific embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment 1
Present embodiment discloses a kind of positioner of failure in cabinet control loop, by one or more positioning
Unit is constituted；
As shown in figure 1, described each positioning unit includes the first step-down rectifier module, not gate and door, trigger and failure
Alarm unit；In each positioning unit, the one of the input connection cabinet control loop of the first step-down rectifier module
Individual fault detecting point, the output end of the first step-down rectifier module connects the input of not gate, output end connection and the door of not gate
One of input；With the output end that another input of door is connected the second step-down rectifier module, the second step-down rectifier module
Input connection electrical equipment answer signal feedback end, trigger is connected with the output end of door puts an input, trigger
Zero setting input power supply and ground connection are connect by reset circuit respectively, the output end connecting fault alarm unit of trigger passes through
The high level control fault alarm unit of output carries out alert operation.
Fault alarm unit includes contactor and light emitting diode, one group of the two of coil wiring of contactor in the present embodiment
End is connected respectively the output end and ground of trigger, by the working condition of the output control contactor of trigger；Direct current
It is grounded after source-series contactor a pair of contact and light emitting diode, by the working state control light emitting diode of contactor
Light on and off.
Reset circuit includes reset switch, electrochemical capacitor and resistance, wherein the zero setting input of trigger in the present embodiment
By resistance eutral grounding, the zero setting input of trigger connects dc source by reset switch and electrochemical capacitor in parallel, by multiple
Bit switch resets to trigger.Before each positioning unit of the present embodiment starts positioning work, first have to answer it
Position, now because positioning unit is not under working condition, not circuit output is low level signal, so trigger is put
The input of one input is low level, when pressing reset switch in reseting procedure, the zero setting input input high level of trigger, this
When trigger output end zero setting, complete reset, in Panasonic's reset switch, the zero setting input input low level of trigger, this
When trigger be in hold mode, the incoming level of output end is constant, remains as low level.
As shown in figure 1, the trigger in the present embodiment is rest-set flip-flop, the S ends of rest-set flip-flop are puts one end, and R ends are
It is zero setting end, trigger can also be other kinds of trigger, such as JK flip-flop in certain the present embodiment.
In each positioning unit of the present embodiment, the first light is connected between the first step-down rectifier module and not gate input
Electric coupler, the second step-down rectifier module and is connected with the second photoelectrical coupler between door input.By the first smooth thermocouple
Clutch and the second photoelectrical coupler realize the isolation of input and output, reduce cabinet control loop mesohigh for this reality
Apply the interference of a positioning unit.
The position fixing process of the positioner of failure is as follows in the above-mentioned cabinet control loop of the present embodiment：
(1) trigger in positioning unit is resetted first so that low level is exported after trigger reset；Then will
The input of the first step-down rectifier module of positioning unit is connected to the fault detecting point of cabinet control loop, and positioning is single
The input of the second step-down rectifier module of unit is connected to electrical equipment answer signal feedback end；
(2) after electrical equipment starts, the signal of electrical equipment answer signal feedback end output is by the second step-down rectifier mould
High level to the input with door is exported after block step-down and rectification, is started positioning unit and is started working；
(3) when the failure of the cabinet control loop of the input connection of the first step-down rectifier module in positioning unit
When test point does not break down, the voltage of the input of the first step-down rectifier module input after step-down rectifier by being input into non-
Door, after not gate receives the high level signal of the first step-down rectifier module and the output of the second step-down rectifier module output end, output
Low level to door, now put an input with gate output terminal output low level to trigger, trigger output state keeps not
Become, therefore export low level to fault alarm unit, one group of coil of the contactor being connected with trigger in fault alarm unit
No power, now contactor do not work, a pair of contact of connecting luminous diode is in the state opened, light-emitting diodes in contactor
Pipe does not work.
(4) when the failure of the cabinet control loop of the input connection of the first step-down rectifier module in positioning unit
When test point breaks down, the input of the first step-down rectifier module does not have voltage signal to be input into, now the first step-down rectifier mould
The not gate output high level signal of block output end connection to door, now to put one defeated with gate output terminal output high level to trigger
Enter end, trigger output puts one, therefore output high level is connected in fault alarm unit to fault alarm unit with trigger
One group of coil electricity of contactor, now contactor work, a pair of contact of connecting luminous diode is in closure in contactor
State, light emitting diode brightens；Point out the cabinet control of the input connection of positioning unit the first step-down rectifier module
The fault detecting point in loop processed breaks down.
In the present embodiment, when positioning unit number for it is multiple when, each positioning unit is connected with door input
Second step-down rectifier module is same, and the reset circuit of the trigger connection of each positioning unit is same.
As shown in Fig. 2 positioner includes 4 positioning units in the present embodiment, respectively the first positioning unit, second are determined
Bit location, the 3rd positioning unit and the 4th positioning unit, in can completing cabinet control loop by 4 positioning units
Detected while 4 trouble points.4 second step-down rectifiers being connected with door input of positioning unit wherein in the present embodiment
Module is same, and the reset circuit of 4 trigger connections of positioning unit is same.As shown in figure 3, the present embodiment 4
In two contacts of contactor Q1, Q2, Q3 and Q4 one pair of which contact of the fault alarm unit of positioning unit, one of them is touched
Point connection dc source, another contact is grounded by light emitting diode.When contactor Q1, Q2, Q3 and Q4 coil electricity, its
On a pair of contact closure, correspondence connection light emitting diode brighten.
The cabinet control loop schematic diagram of common electric machine WE07 is illustrated in figure 4,4 positioning are single in the present embodiment
Unit is connected same second step-down rectifier module output end, the input connection electricity of the second step-down rectifier module with door input
The answer signal feedback end of machine WE07.The first step-down rectifier module input connection motor WE07 of the first positioning unit is controlled back
On wire behind the fuse on road；The first step-down rectifier module input connection motor WE07 control loops of the second positioning unit
Electrothermal relay circuit in；First step-down rectifier module input of the 3rd positioning unit connects showing for motor WE07 control loops
In field switch circuit；The DCS of the first step-down rectifier module input connection motor WE07 control loops of the 4th positioning unit is standby
In appropriate signal circuit.
The present embodiment was first resetted before motor WE07 startups, after motor WE07 startups, the present embodiment positioning dress
Put startup work.
If fuse insurance is broken down, the first step-down rectifier module input of the first positioning unit will be input into low electricity
Put down to not gate, now the trigger output high level of the first positioning unit, controls the fault alarm unit work of the first positioning unit
Make, i.e. the fault alarm unit LED 1 of first module brightens.
If during electrothermal relay action failure, the first step-down rectifier module input of the second positioning unit will be input into low electricity
Put down to not gate, now the trigger output high level of the second positioning unit, controls the fault alarm unit work of the second positioning unit
Make, i.e. the fault alarm unit LED 2 of second unit brightens.
If Misoperation of Local Switches or failure cause shutdown, the first step-down rectifier module input of the 3rd positioning unit
By input low level to not gate, now the trigger output high level of the 3rd positioning unit, controls the failure of the 3rd positioning unit
Alarm unit works, i.e. the fault alarm unit LED 3 of Unit the 3rd brightens.
If DCS is ready for dropout causes shutdown, the first step-down rectifier module input of the 4th positioning unit will be defeated
Enter low level to not gate, now the trigger output high level of the 4th positioning unit, controls the fault alarm of the 4th positioning unit
Cell operation, the i.e. fault alarm unit LED 3 of Unit the 4th brightens.
Therefore by the present embodiment positioner, the positioning list that operating personnel can be according to where the light emitting diode for brightening
Unit orients the trouble point in cabinet control loop.Detection exclusion is carried out without manually putting one by one, is substantially increased
Fault detection efficiency.It can be seen that positioner can quickly and accurately orient the failure in cabinet control loop, drop
The low maintenance difficulty of cabinet control loop.
Embodiment 2
Present embodiment discloses a kind of positioner of failure in cabinet control loop, by one or more positioning
Unit is constituted；
As shown in figure 5, each positioning unit includes the first step-down rectifier module, not gate and door, trigger in the present embodiment
And fault alarm unit.
In each positioning unit, one of the input connection cabinet control loop of the first step-down rectifier module
Fault detecting point, the output end of the first step-down rectifier module connects the input of not gate, the output end connection of not gate and door its
In an input；With the output end that another input of door is connected the second step-down rectifier module, the second step-down rectifier module it is defeated
Enter end connection electrical equipment answer signal feedback end, be connected the zero setting input of trigger with the output end of door, trigger is put
One input connects power supply and ground connection respectively by reset circuit；The output end connecting fault alarm unit of trigger, by output
Low level control fault alarm unit carry out alert operation.
Fault alarm unit includes contactor and light emitting diode, one group of the two of coil wiring of contactor in the present embodiment
End is connected respectively the output end and power supply of trigger, by the working condition of the output control contactor of trigger；Direct current
It is grounded after power sources in series contactor a pair of contact and light emitting diode, by the working state control light emitting diode of contactor
Light on and off.
Reset circuit includes reset switch, electrochemical capacitor and resistance in the present embodiment, and wherein trigger puts an input
By resistance eutral grounding, an input of putting of trigger connects dc source by reset switch and electrochemical capacitor in parallel, by multiple
Bit switch resets to trigger.Before each positioning unit of the present embodiment starts positioning work, first have to answer it
Position, now because positioning unit is not under working condition, not circuit output is low level signal, so trigger is put
Reset terminal input is low level, and when pressing reset switch in reseting procedure, trigger puts an input input high level, this
When trigger output end put one, complete to reset, in Panasonic's reset switch, trigger puts an input input low level, this
When trigger be in hold mode, the incoming level of output end is constant, remains as high level.
As shown in figure 5, trigger is rest-set flip-flop in the present embodiment；The S ends of rest-set flip-flop are puts one end, and R ends are
Zero setting end, trigger can also be other kinds of trigger, such as JK flip-flop in certain the present embodiment.
In each positioning unit, the first photoelectric coupling is connected between the first step-down rectifier module and not gate input
Device, the second step-down rectifier module and is connected with the second photoelectrical coupler between door input；
The position fixing process of fault locator is specific as follows in the above-mentioned cabinet control loop of the present embodiment：
(1) trigger in positioning unit is resetted first, so that high level is exported after trigger reset, then
The input of the first step-down rectifier module of positioning unit connects the fault detecting point of cabinet control loop, positioning unit
The second step-down rectifier module input connection electrical equipment answer signal feedback end；
(2) after, electrical equipment starts, the signal of electrical equipment answer signal feedback end output is by the second step-down rectifier mould
High level to the input with door is exported after block step-down and rectification, is started positioning unit and is started working；(3), when in positioning unit
When the fault detecting point of the cabinet control loop of the input connection of the first step-down rectifier module does not break down, first
By being input into after step-down rectifier to not gate, not gate receives the first step-down rectifier to the voltage of the input input of step-down rectifier module
Module and the second step-down rectifier module output end output high level signal after, output low level to door, it is defeated with gate output terminal
Go out low level to trigger zero setting input；Now trigger output state keeps constant, therefore exports high level to failure report
Alert unit, one group of coil no power of the contactor being connected with trigger in fault alarm unit, now contactor do not work, connect
A pair of contact that connecting luminous diode is distinguished in tentaculum is in the state opened, and light emitting diode does not work；
(4), when the event of the cabinet control loop of the input connection of the first step-down rectifier module in positioning unit
When barrier test point breaks down, the input of the first step-down rectifier module does not have voltage signal to be input into, now the first step-down rectifier
The not gate output high level signal of module output end connection to door, export high level to trigger zero setting end with gate output terminal；
Now trigger output zero setting, output low level to fault alarm unit, the contact connected with trigger in fault alarm unit
One group of coil electricity of device, now contactor work, connecting luminous diode a pair of contact is in the state of closure in contactor,
Light emitting diode brightens；Point out the cabinet control loop of the input connection of positioning unit the first step-down rectifier module
Fault detecting point breaks down.
In the present embodiment when positioning unit number for it is multiple when, be connected with door input the of each positioning unit
Two step-down rectifier modules are same, and the reset circuit of the trigger connection of each positioning unit is same.
As shown in fig. 6, positioner includes 4 positioning units in the present embodiment, respectively the first positioning unit, second are determined
Bit location, the 3rd positioning unit and the 4th positioning unit, in can completing cabinet control loop by 4 positioning units
Detected while 4 trouble points.Its neutralization embodiment 1 is identical, as shown in figure 3,4 fault alarms of positioning unit of the present embodiment
In two contacts of contactor Q1, Q2, Q3 and Q4 one pair of which contact of unit, one of contact portion dc source, separately
One contact is grounded by light emitting diode.When contactor Q1, Q2, Q3 and Q4 coil electricity, a pair of contact closure thereon,
The light emitting diode of correspondence connection brightens.
The cabinet control loop schematic diagram of common electric machine WE07,4 positioning units in the present embodiment are shown as such as Fig. 4
Be connected same second step-down rectifier module output end with door input, the input connection motor of the second step-down rectifier module
The answer signal feedback end of WE07.The first step-down rectifier module input connection motor WE07 control loops of the first positioning unit
Fuse behind wire on；The first step-down rectifier module input connection motor WE07 control loops of the second positioning unit
In electrothermal relay circuit；First step-down rectifier module input of the 3rd positioning unit connects the scene of motor WE07 control loops
In on-off circuit；The DCS of the first step-down rectifier module input connection motor WE07 control loops of the 4th positioning unit is ready for
In signal circuit.
The present embodiment positioning unit first resetted before fault detect to trigger therein, after the completion of reset,
When motor WE07 starts, positioning unit starts fault detect work.If fuse insurance is broken down, the first positioning unit
The first step-down rectifier module input by input low level to not gate, now the trigger of the first positioning unit exports low electricity
It is flat, control the fault alarm unit work of the first positioning unit, i.e. the fault alarm unit LED 1 of first module
Brighten.
If during electrothermal relay action failure, the first step-down rectifier module input of the second positioning unit will be input into low electricity
Put down to not gate, now the trigger output low level of the second positioning unit, controls the fault alarm unit work of the second positioning unit
Make, i.e. the fault alarm unit LED 2 of second unit brightens.
If Misoperation of Local Switches or failure cause shutdown, the first step-down rectifier module input of the 3rd positioning unit
By input low level to not gate, now the trigger output low level of the 3rd positioning unit, controls the failure of the 3rd positioning unit
Alarm unit works, i.e. the fault alarm unit LED 3 of Unit the 3rd brightens.
If DCS is ready for dropout causes shutdown, the first step-down rectifier module input of the 4th positioning unit will be defeated
Enter low level to not gate, now the trigger output low level of the 4th positioning unit, controls the fault alarm of the 4th positioning unit
Cell operation, the i.e. fault alarm unit LED 3 of Unit the 4th brightens.
Therefore by the above-mentioned positioner of the present embodiment, operating personnel can also be according to where the light emitting diode for brightening
Positioning unit orients the trouble point in cabinet control loop.Detection exclusion is carried out without manually putting one by one, significantly
Improve fault detection efficiency.It can be seen that positioner can quickly and accurately orient the event in cabinet control loop
Barrier, reduces the maintenance difficulty of cabinet control loop.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (10)
1. in a kind of cabinet control loop failure positioner, it is characterised in that by one or more positioning units
Composition；
Described each positioning unit includes the first step-down rectifier module, not gate and door, trigger and fault alarm unit；
In each positioning unit, the input of the first step-down rectifier module connects a failure of cabinet control loop
Test point, the output end of the first step-down rectifier module connects the input of not gate, the output end connection and wherein the one of door of not gate
Individual input, with the output end that another input of door is connected the second step-down rectifier module, the input of the second step-down rectifier module
End connection electrical equipment answer signal feedback end, an input of putting of trigger, the zero setting of trigger are connected with the output end of door
Input connects reset circuit, and reset zero setting is carried out to trigger by reset circuit；The output end connecting fault alarm of trigger
Unit, alert operation is carried out by the high level control fault alarm unit for exporting.
2. in cabinet control loop according to claim 1 failure positioner, it is characterised in that failure report
Alert unit includes contactor and light emitting diode, and one group of the two of coil terminals of contactor are connected respectively the defeated of trigger
Go out end and ground, by the working condition of the output control contactor of trigger；Dc source series contactor a pair of contact and
It is grounded after light emitting diode；By the light on and off of the working state control light emitting diode of contactor.
3. in cabinet control loop according to claim 1 failure positioner, it is characterised in that reset electricity
Road includes reset switch, electrochemical capacitor and resistance, and wherein the zero setting input of trigger is by resistance eutral grounding, the zero setting of trigger
Input connects dc source by reset switch and electrochemical capacitor in parallel, carries out reset to trigger by reset switch and puts
Zero.
4. in cabinet control loop according to claim 1 failure positioner, it is characterised in that it is described touch
Hair device is rest-set flip-flop or JK flip-flop.
5. in cabinet control loop according to claim 1 failure positioner, it is characterised in that at each
In positioning unit, the first photoelectrical coupler, described second are connected between the first step-down rectifier module and not gate input
Step-down rectifier module and the second photoelectrical coupler is connected between door input；
When the number of positioning unit is for multiple, the second step-down rectifier module being connected with door input of each positioning unit
For same, the reset circuit of the trigger connection of each positioning unit is same.
6. in a kind of cabinet control loop failure positioner, it is characterised in that by one or more positioning units
Composition；
Described each positioning unit includes the first step-down rectifier module, not gate and door, trigger and fault alarm unit；
In each positioning unit, the input of the first step-down rectifier module connects a failure of cabinet control loop
Test point, the output end of the first step-down rectifier module connects the input of not gate, the output end connection and wherein the one of door of not gate
Individual input；With the output end that another input of door is connected the second step-down rectifier module, the input of the second step-down rectifier module
Connection electrical equipment answer signal feedback end, is connected the zero setting input of trigger with the output end of door, trigger to put one defeated
Enter end connection reset circuit, reset is carried out to trigger by reset circuit and puts one；The output end connecting fault alarm of trigger is single
Unit, alert operation is carried out by the low level control fault alarm unit for exporting.
7. in cabinet control loop according to claim 6 failure positioner, it is characterised in that failure report
Alert unit includes contactor and light emitting diode, and one group of the two of coil terminals of contactor are connected respectively the defeated of trigger
Go out end and power supply, by the working condition of the output control contactor of trigger；Dc source series contactor a pair of contact with
And be grounded after light emitting diode, by the light on and off of the working state control light emitting diode of contactor.
8. in cabinet control loop according to claim 6 failure positioner, it is characterised in that reset electricity
Road includes reset switch, electrochemical capacitor and resistance, wherein trigger puts an input by resistance eutral grounding, and trigger puts one
Input connects dc source by reset switch and electrochemical capacitor in parallel, and trigger is resetted by reset switch.
9. in cabinet control loop according to claim 6 failure positioner, it is characterised in that at each
In positioning unit, the first photoelectrical coupler, described second are connected between the first step-down rectifier module and not gate input
Step-down rectifier module and the second photoelectrical coupler is connected between door input；
When the number of positioning unit is for multiple, the second step-down rectifier module being connected with door input of each positioning unit
For same, the reset circuit of the trigger connection of each positioning unit is same.
10. in cabinet control loop according to claim 6 failure positioner, it is characterised in that it is described
Trigger is rest-set flip-flop or JK flip-flop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621475731.2U CN206281921U (en) | 2016-12-30 | 2016-12-30 | The positioner of failure in cabinet control loop |
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| CN201621475731.2U CN206281921U (en) | 2016-12-30 | 2016-12-30 | The positioner of failure in cabinet control loop |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771758A (en) * | 2016-12-30 | 2017-05-31 | 华润水泥技术研发有限公司 | The positioner and method of failure in cabinet control loop |
| CN108735321A (en) * | 2018-06-22 | 2018-11-02 | 江苏核电有限公司 | A kind of control loop power supply is in alarm device and its verification method |
-
2016
- 2016-12-30 CN CN201621475731.2U patent/CN206281921U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771758A (en) * | 2016-12-30 | 2017-05-31 | 华润水泥技术研发有限公司 | The positioner and method of failure in cabinet control loop |
| CN106771758B (en) * | 2016-12-30 | 2023-09-12 | 华润水泥技术研发有限公司 | Positioning device and method for faults in control loop of electrical switch cabinet |
| CN108735321A (en) * | 2018-06-22 | 2018-11-02 | 江苏核电有限公司 | A kind of control loop power supply is in alarm device and its verification method |
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