CN107085162A - Protection exit pressing plate state monitoring method and system based on peripheral hardware auxiliary contact - Google Patents
Protection exit pressing plate state monitoring method and system based on peripheral hardware auxiliary contact Download PDFInfo
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- CN107085162A CN107085162A CN201710236134.7A CN201710236134A CN107085162A CN 107085162 A CN107085162 A CN 107085162A CN 201710236134 A CN201710236134 A CN 201710236134A CN 107085162 A CN107085162 A CN 107085162A
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- pressing plate
- auxiliary contact
- peripheral hardware
- protection exit
- contact
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
- G01R31/69—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board of terminals at the end of a cable or a wire harness; of plugs; of sockets, e.g. wall sockets or power sockets in appliances
Abstract
The invention discloses a kind of protection exit pressing plate state monitoring method and system based on peripheral hardware auxiliary contact, method implementation steps include：In screen cabinet peripheral hardware auxiliary contact are installed on each protection exit pressing plate, by peripheral hardware auxiliary contact by state that the State Transferring of protection exit pressing plate is peripheral hardware auxiliary contact；The information of the state of each peripheral hardware auxiliary contact and it is sent to host computer and is stored in timing acquiring screen cabinet；System includes host computer and at least one monitoring unit, monitoring unit includes pressing plate state detection module and at least one peripheral hardware auxiliary contact, pressing plate state detection module includes microprocessor and communication module, and peripheral hardware auxiliary contact are connected with microprocessor, and microprocessor is connected with host computer.The present invention is simple and easy to apply, completely isolated with protective relaying device and high-voltage electrical equipment control loop, will not introduce interference, safe, and with good antijamming capability and reliability, be particularly suitable for use in the transformation to existing equipment, and application prospect is considerable.
Description
Technical field
The present invention relates to the protection exit pressing plate Condition Monitoring Technology of transformer station, and in particular to one kind is touched based on peripheral hardware auxiliary
The protection exit pressing plate state monitoring method and system of point.
Background technology
With developing rapidly and extensive use for computer, network service and database technology, automation of transformation substations level
Flourish and climb to a higher point repeatly peak, significant increase operation of power networks efficiency and security.Relay protection is electric substation automation system
Important component, its device possesses at a relatively high automatization level in itself.But relay protection outlet pressing plate is still using artificial existing
The mode that field is examined carries out state-detection, and automation and reliability level are relatively low, pressing plate mistake easily occurs and throws situation about moving back, makes
Into unnecessary accident.In recent years, electric power practitioner has a profound understanding of the necessity and importance of output clamping status monitoring,
Substantial amounts of pressing plate status monitoring Study of intelligent and trial have been carried out, some achievements are achieved, but has not yet been formed relatively broad
Influence.Being seen in the pressing plate state intelligent monitoring scheme of existing literature and practice mainly has following three kinds.One is being taken the photograph by installing
Camera collection screen cabinet image, pressing plate state is detected using gray scale identification technology；The second is matching somebody with somebody respectively on pressing plate and screen cabinet body
Reflecting coating and light emitting source are put, pressing plate state-detection is realized by optical detection principle.Both schemes are all in existing pressing plate
Pressing plate state intelligent monitoring is realized by being equipped with auxiliary part and non electrical quantity contact technique under structure, not to outlet trip(ping) circuit
Middle to introduce any interference, security is higher.But used in scheme there is certain defect in the reliability of pressing plate status monitoring component, all can
Influenceed by external light source, and will there is certain IMAQ difficulty because pressing plate layout is relatively low in the first scheme.It is another
Pressing plate status monitoring scheme is fundamentally to solve the problem of tripping operation output clamping can not be monitored, intelligent pressure plate using intelligent pressure plate
Outlet loop control and pressing plate status monitoring function are provided simultaneously with structure, reliability is higher.But this scheme is more suitable for
The platen design standard of brand-new and newly-built screen cabinet, intelligence is carried out in the substantial amounts put into operation now into surprising screen cabinet from now on
Energy pressing plate transformation, one side quantities is big, cost is high, on the other hand may not also possess engineering permissive condition.
In summary, in engineering practice, in the urgent need to it is a kind of agree with existing platen design specification, it is safe and reliable
Protection exit pressing plate state inspection, is realized out on the basis of protective relaying device and primary equipment control loop is not disturbed
The status monitoring of mouth pressing plate.
The content of the invention
The technical problem to be solved in the present invention：For the above mentioned problem of prior art, there is provided a kind of simple and easy to apply and relay
Protection device and high-voltage electrical equipment control loop are completely isolated, will not introduce interference, safe, and dry with good resisting
Ability and reliability are disturbed, be particularly suitable for use in the transformation to existing equipment, the considerable guarantor based on peripheral hardware auxiliary contact of application prospect
Protect output clamping state monitoring method and system.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
The present invention provides a kind of protection exit pressing plate state monitoring method based on peripheral hardware auxiliary contact, and implementation steps include：
1）In screen cabinet peripheral hardware auxiliary contact are installed on each protection exit pressing plate, by peripheral hardware auxiliary contact by protection exit pressure
The State Transferring of plate is the state of peripheral hardware auxiliary contact；
2）It is outer by the information of the state of each peripheral hardware auxiliary contact in terminal device timing acquiring screen cabinet, and by what is collected
If being sent to host computer after the self-detection result of the state and terminal device itself of auxiliary contact；
3）The information and terminal device of the state for the peripheral hardware auxiliary contact that the terminal device that host computer receives each screen cabinet is sent
The self-detection result of itself, the self-detection result of the information of the state of all peripheral hardware auxiliary contact and terminal device itself is deposited
Storage.
Preferably, step 1）When shielding installation peripheral hardware auxiliary contact on each protection exit pressing plate in cabinet, it is included in discrete
Discrete pressing plate auxiliary contact are installed, the discrete pressing plate auxiliary contact include the set being connected with each other on formula protection exit pressing plate
Ring and the first outer package, the collar be arranged be arranged on the outside of the upper supporting column of discrete protection exit pressing plate and with upper supporting column interference
Coordinate, a pair of the hard contacts arranged in first outer package provided with sheet metal and respectively with sheet metal gap, hard contact
External lead wire is as the detection output of discrete pressing plate auxiliary contact respectively, and the sheet metal and hard contact pass through bullet respectively
Spring is fixed in the first outer package, and the sheet metal is provided with feeler lever, and first outer package, which is provided with along the elastic force of spring, to be made
The sliding eye arranged with direction, the feeler lever is inserted in sliding eye and stretched out and is arranged in outside the first outer package, and the slip
Hole is arranged on the line between the upper supporting column of discrete protection exit pressing plate and lower supporting rod.
Preferably, the first spring, first outer package are fixed between the bottom of the sheet metal and the first outer package
Bottom be located at the first spring both sides be respectively provided with a second spring, two second springs are arranged symmetrically with respect to the first spring,
Two second springs are arranged symmetrically with respect to the first spring, and the hard contact is arranged in the end of second spring and positioned at sheet metal
Inner side.
Preferably, step 1）When shielding installation peripheral hardware auxiliary contact on each protection exit pressing plate in cabinet, it is included in coil spring
On formula protection exit pressing plate install wire spring type pressing plate auxiliary contact, the wire spring type pressing plate auxiliary contact include the second outer package,
Metal film contact and outer guide line, second outer package are sheathed on wire spring type protection exit pressing plate and protected out with wire spring type
It is interference fitted on mouth pressing plate, the metal film contact, outer guide line are connected with the second outer package respectively, the metal film contact
Quantity is two and is respectively arranged in point position slot of wire spring type protection exit pressing plate that the metal film contact is respectively by outer
Guide line draws the detection output as wire spring type pressing plate auxiliary contact.
The present invention also provides a kind of protection exit pressure plate status monitoring system based on peripheral hardware auxiliary contact, including host computer
With at least one monitoring unit, the monitoring unit includes pressing plate state detection module and at least one is arranged in protection exit pressure
Peripheral hardware auxiliary contact on plate, the pressing plate state detection module includes microprocessor and communication module, and the peripheral hardware auxiliary is touched
Point is connected with microprocessor, and the microprocessor is connected by communication module with host computer.
Preferably, the peripheral hardware auxiliary contact include the discrete pressing plate auxiliary being arranged on discrete protection exit pressing plate
Contact, the discrete pressing plate auxiliary contact include the collar and the first outer package being connected with each other, and the collar, which is arranged, to be arranged in
Be interference fitted on the outside of the upper supporting column of discrete protection exit pressing plate and with upper supporting column, in first outer package provided with sheet metal and
A pair of the hard contacts arranged respectively with sheet metal gap, hard contact difference external lead wire is used as discrete pressing plate auxiliary contact
Detection output, the sheet metal and hard contact are fixed in the first outer package by spring respectively, on the sheet metal
Provided with feeler lever, first outer package is provided with the sliding eye arranged along the elastic force action direction of spring, and the feeler lever is inserted in
In sliding eye and stretch out and be arranged in outside the first outer package, and the sliding eye is arranged in the upper supporting column of discrete protection exit pressing plate
On line between lower supporting rod.
Preferably, the first spring, first outer package are fixed between the bottom of the sheet metal and the first outer package
Bottom be located at the first spring both sides be respectively provided with a second spring, two second springs are arranged symmetrically with respect to the first spring,
The hard contact is arranged in the end of second spring and positioned at the inner side of sheet metal.
Preferably, the sheet metal is copper sheet, and the hard contact is copper contact.
Preferably, the peripheral hardware auxiliary contact include the wire spring type pressing plate auxiliary being arranged on wire spring type protection exit pressing plate
Contact, the wire spring type pressing plate auxiliary contact include the second outer package, metal film contact and outer guide line, second outer package
It is sheathed on wire spring type protection exit pressing plate and with being interference fitted on wire spring type protection exit pressing plate, it is the metal film contact, outer
Guide line is connected with the second outer package respectively, and the quantity of the metal film contact is two and is respectively arranged and is protected out in wire spring type
In point position slot of mouth pressing plate, the metal film contact is drawn by outer guide line be used as wire spring type pressing plate auxiliary contact respectively
Detection output.
Preferably, the metal film contact is copper film contact.
Protection exit pressing plate state monitoring method tool of the present invention based on peripheral hardware auxiliary contact has the advantage that：The present invention is logical
The installation peripheral hardware auxiliary contact on protection exit pressing plate are crossed, by the state of protection exit pressing plate by applying the auxiliary of maturation in engineering
The state for helping contact technology to be converted to peripheral hardware auxiliary contact is acquired and handled, with simple and easy to apply and protective relaying device
It is completely isolated with high-voltage electrical equipment control loop, interference will not be introduced, it is safe, and with good antijamming capability and
Reliability, be particularly suitable for use in the transformation to existing equipment, and application prospect is considerable.
Protection exit pressure plate status monitoring system of the invention based on peripheral hardware auxiliary contact is of the invention based on peripheral hardware to realize
The hardware device of the protection exit pressing plate state monitoring method of auxiliary contact, equally also there is the present invention to be based on peripheral hardware auxiliary contact
Protection exit pressing plate state monitoring method aforementioned advantages, will not be repeated here.
Brief description of the drawings
Fig. 1 is the basic procedure schematic diagram of present invention method.
Fig. 2 is the structural representation that existing discrete protection exit pressing plate is in point position state.
Fig. 3 is that existing discrete protection exit pressing plate is in the structural representation for closing position state.
Fig. 4 is the main structure diagram of the discrete pressing plate auxiliary contact of the embodiment of the present invention.
Fig. 5 is the theory structure schematic diagram of the discrete pressing plate auxiliary contact of the embodiment of the present invention.
Fig. 6 is the structural representation that existing wire spring type protection exit pressing plate is in point position state.
Fig. 7 is that existing wire spring type protection exit pressing plate is in the structural representation for closing position state.
Fig. 8 is the structural representation of the wire spring type pressing plate auxiliary contact of the embodiment of the present invention.
Fig. 9 is the electronic schematic diagram of the wire spring type pressing plate auxiliary contact of the embodiment of the present invention.
Figure 10 is the monitoring system circuit theory schematic diagram of the embodiment of the present invention.
Marginal data：1st, host computer；2nd, cabinet monitoring unit is shielded；21st, pressing plate state detection module；22nd, discrete pressing plate is auxiliary
Help contact；220th, the collar；221st, the first outer package；222nd, sheet metal；223rd, hard contact；224th, insulate feeler lever；225th, slide
Hole；226th, copper sheet spring；227th, contact spring；23rd, wire spring type pressing plate auxiliary contact；231st, the second outer package；232nd, metal film
Contact；233rd, outer guide line；3rd, discrete protection exit pressing plate；31st, freedom is movable in flakes；32nd, upper supporting column；33rd, lower supporting rod；4、
Wire spring type protection exit pressing plate；41st, it is spacing activity in flakes；42nd, base；421st, position slot is closed；422nd, position slot is divided.
Embodiment
As shown in figure 1, the implementation step of protection exit pressing plate state monitoring method of the present embodiment based on peripheral hardware auxiliary contact
Suddenly include：
1）In screen cabinet peripheral hardware auxiliary contact are installed on each protection exit pressing plate, by peripheral hardware auxiliary contact by protection exit pressure
The State Transferring of plate is the state of peripheral hardware auxiliary contact；
2）It is outer by the information of the state of each peripheral hardware auxiliary contact in terminal device timing acquiring screen cabinet, and by what is collected
If being sent to host computer after the self-detection result of the state and terminal device itself of auxiliary contact；
3）The information and terminal device of the state for the peripheral hardware auxiliary contact that the terminal device that host computer receives each screen cabinet is sent
The self-detection result of itself, the self-detection result of the information of the state of all peripheral hardware auxiliary contact and terminal device itself is deposited
Storage.
Protection exit pressing plate state monitoring method of the present embodiment based on peripheral hardware auxiliary contact is by all peripheral hardware auxiliary contact
The information of state and after the self-detection result of terminal device itself stored, all peripheral hardwares can be aided in as needed to touch
The information of the state of point carries out display output after data analysis and process, and the related retrieval and inquisition of response etc., by protecting
Protect and peripheral hardware auxiliary contact are installed on output clamping, the state of protection exit pressing plate is passed through into the auxiliary contact in engineering using maturation
Technology is converted on the state acquisition of peripheral hardware auxiliary contact, is opened to carry out diversely senior application function in host computer
Hair, realizes that real-time monitoring, record and the orientation of protection exit pressing plate are notified, it is ensured that the correct throwing of pressing plate is moved back and failure is located in time
Reason.In the present embodiment, by the shape of screen cabinet configurating terminal device, on the one hand screen cabinet all outlet ports pressing plate auxiliary contact where collection
State, on the other hand concentrates the state for uploading these auxiliary contact to host computer；By protection room configuration host computer, with network service side
Formula receives contacts status information and the module self-detection result that each pressing plate state monitoring module is uploaded, and Develop Data analysis and result
Processing.
The hardware configuration feature of protection exit pressing plate is directed in the present embodiment, the hardware configuration of peripheral hardware auxiliary contact is designed,
And propose corresponding mount scheme and operation principle.Peripheral hardware auxiliary contact link in flakes with output clamping, output clamping input or
When exiting, the state of auxiliary contact is changed therewith, therefore can reliably monitor output clamping by the break-make for monitoring auxiliary contact
State.
Discrete protection exit pressing plate is existing standard accessory.As shown in Figures 2 and 3, discrete protection exit pressing plate 3 by
Freely activity 31 is constituted with two fixed pillars for sealing in trip(ping) circuit in flakes, and two fixed pillars include upper supporting column 32 and lower branch
Post 33, freely activity in flakes 31 be conductive material, upper supporting column 32 is connected with lower supporting rod 33 when closing, by trip(ping) circuit during disconnection
Disconnect and form visual breakpoint；The center of upper supporting column 32 and lower supporting rod 33 is through shielding the steel bolt inside and outside cabinet, steel bolt
Steel shim and nut are equipped with screen cabinet medial and lateral, plays fixing bolt and conversion conductive section, steel bolt is in screen
It is tightly fastened and is connected with tripping operation outlet loop breakpoint on the inside of cabinet；Steel bolt is separately furnished with nut and two panels steel pad on the outside of screen cabinet
Piece, serves and fixes in flakes.When discrete protection exit pressing plate 3 is put into, trip screen of the outlet loop breakpoint by upper supporting column 32
Cabinet inner screw nut, steel bolt, screen cabinet outboard nut, in flakes and the screen cabinet outboard nut of lower supporting rod 33, steel bolt, in screen cabinet
Side nut connection（Nut shim is not calculated）.Freely 31 lower ends are fixedly sleeved on the steel bolt of lower supporting rod 33 in flakes for activity.Throw
When entering pressing plate, loosen the screen cabinet outboard nut of lower supporting rod 33, by freely activity in flakes 31 upper end dial in the two panels of upper supporting column 32
Between pad, the nut on upper supporting column 32 and lower supporting rod 33, fixed freely movable 31 position, and make free work in flakes are then screwed
Fixing nut on dynamic 31, close screen cabinet side pad and bolt in flakes is in close contact, it is ensured that upper supporting column 32 and lower supporting rod 33 are reliable
Electrical communication；When exiting discrete protection exit pressing plate 3, the nut of upper supporting column 32 and lower supporting rod 33 is loosened, freely activity will be connected
The upper end of piece 31 dial from upper supporting column 32, then screw the nut of lower supporting rod 33, fix freely activity in flakes 31 position.
Step 1 in the present embodiment）Shield peripheral hardware auxiliary contact are installed on each protection exit pressing plate in cabinet when, be included in point
Discrete pressing plate auxiliary contact 22 are installed on vertical protection exit pressing plate 3.As shown in Figure 4 and Figure 5, discrete pressing plate auxiliary contact
22 include the outer package 221 of the collar 220 and first of interconnection, and the collar 220, which is arranged, is arranged in discrete protection exit pressing plate 3
It is interference fitted on the outside of upper supporting column and with upper supporting column, in the first outer package 221 provided with sheet metal 222 and respectively between sheet metal 222
A pair of hard contacts 223 of gap arrangement, the difference external lead wire of hard contact 223 is defeated as the detection of discrete pressing plate auxiliary contact
Go out end, sheet metal 222 and hard contact 223 are fixed in the first outer package 221 by spring respectively, and sheet metal 222 is provided with
Feeler lever 224, the first outer package 221 is provided with the sliding eye 225 arranged along the elastic force action direction of spring, and feeler lever 224 is inserted in
In sliding eye 225 and stretch out and be arranged in outside the first outer package 221, and sliding eye 225 is arranged in discrete protection exit pressing plate 3
On line between upper supporting column 32 and lower supporting rod 33.
As shown in Figure 4 and Figure 5, it is fixed with first between the bottom of the outer package 221 of sheet metal 222 and first in the present embodiment
Spring 226, the both sides that the bottom of the first outer package 221 is located at the first spring 226 are respectively provided with a second spring 227, two the
Relative first spring 226 of two spring 227 is arranged symmetrically, and hard contact 223 is arranged in the end of second spring 227 and positioned at metal
The inner side of piece 222.
Wire spring type protection exit pressing plate is existing standard accessory.As shown in Figure 6 and Figure 7, wire spring type protection exit pressing plate 4 by
Spacing activity in flakes 41 and base 42 constitute, respectively there is a conductive copper rod at 41 two ends in flakes for spacing activity, in spacing activity in flakes
Inside 41, two copper rod electrical communications.There are two pairs of slots on base 42, be to close position slot 421 and point position slot 422 respectively.When
Pressing plate is when closing position, and upper two copper rods insertion in flakes is closed in position slot 421；When wire spring type protection exit pressing plate 4 is dividing position, copper
In rod insertion point position slot 422.Close the inner side of position slot 421 and be coated with the copper film for sealing in trip(ping) circuit, the copper film is trip(ping) circuit
Visual breakpoint；After position slot 421 is closed in 41 insertions in flakes for spacing activity, copper rod contact copper film turns on visual breakpoint.Position is divided to insert
The non-copper facing in the inner side of groove 422, is only used as spacing in flakes.
In the present embodiment, step 1）When shielding installation peripheral hardware auxiliary contact on each protection exit pressing plate in cabinet, it is included in
Wire spring type pressing plate auxiliary contact 23 are installed, as shown in Figure 8 and Figure 9, wire spring type pressing plate auxiliary is touched on wire spring type protection exit pressing plate 4
Point 23 includes the second outer package 231, metal film contact 232 and outer guide line 233, and the second outer package 231 is sheathed on wire spring type guarantor
Protect on output clamping 4 and with being interference fitted on wire spring type protection exit pressing plate 4, metal film contact 232, outer guide line 233 are distinguished
It is connected with the second outer package 231, the quantity of metal film contact 232 is two and is respectively arranged in wire spring type protection exit pressing plate 4
Point position slot 422 in, metal film contact 232 is drawn as wire spring type pressing plate auxiliary contact by outer guide line 233 respectively
Detection output.
As shown in figure 4, protection exit pressure plate status monitoring system of the present embodiment based on peripheral hardware auxiliary contact is including upper
Machine 1 and N number of monitoring unit 2, monitoring unit 2 includes pressing plate state detection module 21 and at least one is arranged in protection exit pressing plate
On peripheral hardware auxiliary contact（1~contact of contact Ni）, pressing plate state detection module 21 include microprocessor and communication module, peripheral hardware
Auxiliary contact are connected with microprocessor, and microprocessor is connected by communication module with host computer 1.It should be noted that monitoring
The quantity of unit 2 can be one and can also two or more, to adapt to the quantity for shielding cabinet.
In the present embodiment, a monitoring unit 2 is configured on each protection screen cabinet, and each output clamping auxiliary on cabinet will be shielded
Contact is linked into by way of hardwire in monitoring unit 2, and pressing plate state acquisition is realized inside monitoring unit 2.Monitoring is single
Member 2 carries out hardware check in real time, to avoid occurring in 2 failure of monitoring unit the wrong report of pressing plate state.Then monitoring unit 2 is simultaneously
The status information and hardware check result of each output clamping of place screen cabinet are uploaded to host computer.Each protection room configures one
Host computer 1, host computer 1 gathers the upload data of each pressing plate state monitoring module, and realizes diversified senior application work(
Can, for example：In every protection one host computer 1 of indoor configuration, administrative each pressing plate status monitoring is gathered by network communication mode
Contacts status information and module self-detection result that module is uploaded, and store automatically.When module self-detection result is abnormal, host computer 1
Malfunctioning module can be instantaneously oriented, and is alarmed.The one side of host computer 1 realizes the reality of each pressing plate state by the form of monitoring backstage
When graphic software platform；On the other hand in view of output clamping is more important, after the displacement of pressing plate state, host computer 1 is while alarm, also
Transmission will be pinpointed in the way of short message to correlation specific responsibility, to ensure timely investigation and the processing of failure.
In the present embodiment, the discrete pressing plate that peripheral hardware auxiliary contact include being arranged on discrete protection exit pressing plate 3 is auxiliary
Contact 22 is helped, as shown in Figure 4 and Figure 5, discrete pressing plate auxiliary contact 22 include the outer package of the collar 220 and first being connected with each other
221, the collar 220, which is arranged, to be arranged on the outside of the upper supporting column of discrete protection exit pressing plate 3 and is interference fitted with upper supporting column, outside first
A pair of the hard contacts 223 arranged in encapsulation 221 provided with sheet metal 222 and respectively with the gap of sheet metal 222, hard contact 223
External lead wire is as the detection output of discrete pressing plate auxiliary contact respectively, and sheet metal 222 and hard contact 223 pass through respectively
Spring is fixed in the first outer package 221, and sheet metal 222 is provided with feeler lever 224, and the first outer package 221 is provided with along spring
The sliding eye 225 of elastic force action direction arrangement, feeler lever 224, which is inserted in sliding eye 225 and stretched out, is arranged in the first outer package 221
Outside, and sliding eye 225 is arranged on the line between the upper supporting column 32 of discrete protection exit pressing plate 3 and lower supporting rod 33.
In the present embodiment, it is fixed between the bottom of the outer package 221 of sheet metal 222 and first outside the first spring 226, first
The both sides that the bottom of encapsulation 221 is located at the first spring 226 are respectively provided with a second spring 227, two second springs 227 relative the
One spring is arranged symmetrically 226, and hard contact 223 is arranged in the end of second spring 227 and positioned at the inner side of sheet metal 222.This
In embodiment, sheet metal 222 is fixed and is integrally formed with the lower end of feeler lever 224 and the top of the first spring 226 respectively；Hard contact
223 lower ends are fixed and are integrally formed with the top of second spring 227；224 extruding sheet metals 222 of feeler lever and offer insulating effect,
Feeler lever 224 adopts made of plastic；In the present embodiment, the collar 220 adopts made of plastic, and the collar 220 plays fixed spring contact,
It is dimensioned slightly smaller than the periphery of upper supporting column 32, is inserted in after upper supporting column 32 and confined by thermal expansion effect during installation.Due to sliding eye 225
It is arranged on the line between the upper supporting column of discrete protection exit pressing plate 3 and lower supporting rod, therefore discrete protection exit pressing plate 3
During input, freely activity triggers feeler lever 224 in flakes so that sheet metal 222, hard contact 223 are turned on, so that peripheral hardware is aided in
The state of contact（Resistance）Change.The limitation feeler lever 224 of sliding eye 225 can only be vertical up and down（Using orientation shown in profile as
Benchmark）It is mobile, it is ensured that sheet metal 222 and both sides feeler lever 224 are all in close contact when freely activity is closed in flakes.In discrete protection
When output clamping 3 is exited, the first spring 226 extrudes sheet metal 222, separates sheet metal 222, hard contact 223（Resistance recovers
For infinity）；Discrete protection exit pressing plate 3 input after, freely activity in flakes 31 extruding feeler lever 224, make sheet metal 222,
Hard contact 223 is contacted（Resistance is about 0）.
In the present embodiment, sheet metal 222 is copper sheet, and hard contact 223 is copper contact, and copper material physical and chemical performance is steady
It is fixed, and good conductivity, it can be ensured that electrical contact is reliable and stable.
In the present embodiment, the wire spring type pressing plate that peripheral hardware auxiliary contact include being arranged on wire spring type protection exit pressing plate 4 is auxiliary
Contact 23 is helped, as shown in Figure 8 and Figure 9, wire spring type pressing plate auxiliary contact 23 include the second outer package 231, the and of metal film contact 232
Outer guide line 233, the second outer package 231 be sheathed on wire spring type protection exit pressing plate 4 and with wire spring type protection exit pressing plate 4
Interference fit, metal film contact 232, outer guide line 233 are connected with the second outer package 231 respectively, the quantity of metal film contact 232
For two and it is respectively arranged in point position slot 422 of wire spring type protection exit pressing plate 4, metal film contact 232 is respectively by outer
Guide line 233 draws the detection output as wire spring type pressing plate auxiliary contact.At wire spring type protection exit 4 points of positions of pressing plate,
The metal film contact 232 in copper rod contact point position slot 422, makes the junction closure of metal film contact 232, so that peripheral hardware in flakes
The state of auxiliary contact（Resistance）Change；When wire spring type protection exit pressing plate 4 closes position, copper rod is with dividing a position slot in flakes
Metal film contact 232 in 422 is separated, and metal film contact 232 is then turned off（Resistance reverts to infinity）；Touched by metal film
The open/close status of point 232 can reliably monitor the state of wire spring type protection exit pressing plate 4.Certainly, the auxiliary contact can go it
Effectively on condition that wire spring type protection exit pressing plate 4, which is thrown, moves back the necessary specification of operation, it must make when exiting wire spring type protection exit pressing plate 4
Copper rod is correctly inserted into point position slot 422 in flakes.In the present embodiment, metal film contact 232 is copper film contact, copper material physics
Stable chemical performance, and good conductivity, it can be ensured that electrical contact is reliable and stable.
In summary, the protection exit pressing plate state monitoring method and system of the present embodiment pass through on protection exit pressing plate
The auxiliary contact linked with output clamping are installed, by the state of protection exit pressing plate via the pressing plate status monitoring by screen cabinet configuration
Module is sent to host computer, then host computer realize the monitoring of whole protection room all outlet ports pressing plate state, record, early warning and
Orientation is notified, efficiently solves the state to protecting pressing plate under conditions of not interference issue pressing plate and primary equipment control loop
Detection.The present invention takes full advantage of the mature auxiliary contact technology of industry in engineer applied, and reliability is high, installation, resists dry
Disturb ability strong,.The pressing plate state monitoring method based on peripheral hardware auxiliary contact that the present invention is provided, effectively can export pressure by monitoring and protecting
The state of plate, is conducive to the correct throwing of pressing plate to move back timely processing with failure.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of protection exit pressing plate state monitoring method based on peripheral hardware auxiliary contact, it is characterised in that implementation steps include：
1）In screen cabinet peripheral hardware auxiliary contact are installed on each protection exit pressing plate, by peripheral hardware auxiliary contact by protection exit pressure
The State Transferring of plate is the state of peripheral hardware auxiliary contact；
2）It is outer by the information of the state of each peripheral hardware auxiliary contact in terminal device timing acquiring screen cabinet, and by what is collected
If being sent to host computer after the self-detection result of the state and terminal device itself of auxiliary contact；
3）The information and terminal device of the state for the peripheral hardware auxiliary contact that the terminal device that host computer receives each screen cabinet is sent
The self-detection result of itself, the self-detection result of the information of the state of all peripheral hardware auxiliary contact and terminal device itself is deposited
Storage.
2. the protection exit pressing plate state monitoring method according to claim 1 based on peripheral hardware auxiliary contact, its feature exists
In step 1）When shielding installation peripheral hardware auxiliary contact on each protection exit pressing plate in cabinet, it is included in discrete protection exit pressure
Discrete pressing plate auxiliary contact are installed, the discrete pressing plate auxiliary contact include the collar and the first covering being connected with each other on plate
Dress, the collar, which is arranged, to be arranged on the outside of the upper supporting column of discrete protection exit pressing plate and is interference fitted with upper supporting column, and described the
A pair of the hard contacts arranged in one outer package provided with sheet metal and respectively with sheet metal gap, hard contact difference external lead wire
As the detection output of discrete pressing plate auxiliary contact, the sheet metal and hard contact are fixed on first by spring respectively
In outer package, the sheet metal is provided with feeler lever, and first outer package is provided with what is arranged along the elastic force action direction of spring
Sliding eye, the feeler lever is inserted in sliding eye and stretched out and is arranged in outside the first outer package, and the sliding eye be arranged in it is discrete
On line between the upper supporting column and lower supporting rod of formula protection exit pressing plate.
3. the protection exit pressing plate state monitoring method according to claim 2 based on peripheral hardware auxiliary contact, its feature exists
In：It is fixed with the first spring between the bottom of the sheet metal and the first outer package, the bottom of first outer package is located at the
The both sides of one spring are respectively provided with a second spring, and two second springs are arranged symmetrically with respect to the first spring, the hard contact
It is arranged in the end of second spring and positioned at the inner side of sheet metal.
4. the protection exit pressing plate state monitoring method according to claim 1 based on peripheral hardware auxiliary contact, its feature exists
In：Step 1）When shielding installation peripheral hardware auxiliary contact on each protection exit pressing plate in cabinet, it is included in wire spring type protection exit pressure
On plate install wire spring type pressing plate auxiliary contact, the wire spring type pressing plate auxiliary contact include the second outer package, metal film contact and
Outer guide line, second outer package be sheathed on wire spring type protection exit pressing plate and with interference on wire spring type protection exit pressing plate
Coordinate, the metal film contact, outer guide line be connected with the second outer package respectively, the quantity of the metal film contact be two and
It is respectively arranged in point position slot of wire spring type protection exit pressing plate, work is drawn in the metal film contact by outer guide line respectively
For the detection output of wire spring type pressing plate auxiliary contact.
5. a kind of protection exit pressure plate status monitoring system based on peripheral hardware auxiliary contact, it is characterised in that：Including host computer and
At least one monitoring unit, the monitoring unit includes pressing plate state detection module and at least one is arranged in protection exit pressing plate
On peripheral hardware auxiliary contact, the pressing plate state detection module include microprocessor and communication module, the peripheral hardware auxiliary contact
It is connected with microprocessor, and the microprocessor is connected by communication module with host computer.
6. the protection exit pressure plate status monitoring system according to claim 5 based on peripheral hardware auxiliary contact, its feature exists
In：The peripheral hardware auxiliary contact include the discrete pressing plate auxiliary contact being arranged on discrete protection exit pressing plate, described point
Vertical pressing plate auxiliary contact include the collar and the first outer package being connected with each other, and the collar, which is arranged, to be arranged in discrete and protect out
Be interference fitted on the outside of the upper supporting column of mouthful pressing plate and with upper supporting column, in first outer package provided with sheet metal and respectively with sheet metal
A pair of hard contacts of gap arrangement, hard contact is distinguished external lead wire and exported as the detection of discrete pressing plate auxiliary contact
End, the sheet metal and hard contact are fixed in the first outer package by spring respectively, and the sheet metal is provided with feeler lever, institute
State the first outer package and be provided with the sliding eye arranged along the elastic force action direction of spring, the feeler lever is inserted in sliding eye and stretched
Go out and be arranged in outside the first outer package, and the sliding eye is arranged between the upper supporting column of discrete protection exit pressing plate and lower supporting rod
Line on.
7. the protection exit pressure plate status monitoring system according to claim 6 based on peripheral hardware auxiliary contact, its feature exists
In：It is fixed with the first spring between the bottom of the sheet metal and the first outer package, the bottom of first outer package is located at the
The both sides of one spring are respectively provided with a second spring, and two second springs are arranged symmetrically with respect to the first spring, the hard contact
It is arranged in the end of second spring and positioned at the inner side of sheet metal.
8. the protection exit pressure plate status monitoring system according to claim 7 based on peripheral hardware auxiliary contact, its feature exists
In：The sheet metal is copper sheet, and the hard contact is copper contact.
9. the protection exit pressure plate status monitoring system according to claim 5 based on peripheral hardware auxiliary contact, its feature exists
In：The peripheral hardware auxiliary contact include the wire spring type pressing plate auxiliary contact being arranged on wire spring type protection exit pressing plate, the line
Spring formula pressing plate auxiliary contact include the second outer package, metal film contact and outer guide line, and second outer package is sheathed on coil spring
On formula protection exit pressing plate and with being interference fitted on wire spring type protection exit pressing plate, the metal film contact, outer guide line difference
It is connected with the second outer package, the quantity of the metal film contact is two and is respectively arranged point in wire spring type protection exit pressing plate
In the slot of position, the metal film contact is drawn by outer guide line exported as the detection of wire spring type pressing plate auxiliary contact respectively
End.
10. the protection exit pressure plate status monitoring system according to claim 9 based on peripheral hardware auxiliary contact, its feature exists
In：The metal film contact is copper film contact.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710236134.7A CN107085162B (en) | 2017-04-12 | 2017-04-12 | Protection exit pressing plate state monitoring method and system based on peripheral hardware auxiliary contact |
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| CN201710236134.7A CN107085162B (en) | 2017-04-12 | 2017-04-12 | Protection exit pressing plate state monitoring method and system based on peripheral hardware auxiliary contact |
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| CN107085162A true CN107085162A (en) | 2017-08-22 |
| CN107085162B CN107085162B (en) | 2019-07-09 |
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| CN111244880A (en) * | 2020-03-18 | 2020-06-05 | 国网湖南省电力有限公司 | Transformer substation wire spring type hard pressing plate capable of collecting pressing plate state and installation method thereof |
| CN111313358A (en) * | 2020-03-18 | 2020-06-19 | 国网湖南省电力有限公司 | Double-contact scribing type relay protection pressing plate with state acquisition function |
| CN112345808A (en) * | 2020-11-09 | 2021-02-09 | 广东电网有限责任公司江门供电局 | Outlet pressing plate test clamp |
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| CN107085162B (en) | 2019-07-09 |
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