CN109473871A - A kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device and method - Google Patents
A kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device and method Download PDFInfo
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- CN109473871A CN109473871A CN201810313106.5A CN201810313106A CN109473871A CN 109473871 A CN109473871 A CN 109473871A CN 201810313106 A CN201810313106 A CN 201810313106A CN 109473871 A CN109473871 A CN 109473871A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The present invention relates to managing security tools and instruments of transformer substation fields, more particularly to a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device and method, apparatus of the present invention are by high-tension switch cabinet earthing switch blade, charged display device and five anti-lock compositions, its application method is: operator makes out an invoice according to traffic order, the operation order drawn up is through positive value, after value length audits errorless and signature, it can carry out the grid switching operation that certain route is changed to switch and line maintenance by running, and before the earthing switch blade of zygonema road, high-tension switch cabinet earthing switch blade electrification display computer anti-misoperation and lockout device verifying route should be first passed through without electricity, can carry out.The beneficial effects of the present invention are: the perfect anti mis-closedown function of high-tension switch cabinet earthing switch blade of the present invention, has the advantages that substantially reduce misoperation fault probability of happening and effective guarantee operation, service personnel's personal safety and ensures electric power netting safe running.
Description
Technical field
The present invention relates to managing security tools and instruments of transformer substation fields, and in particular to a kind of high-tension switch cabinet earthing switch blade microcomputer anti-error
Blocking device and method.
Background technique
With the increasingly raising that the rapid development of electric system and power supply reliability require, effect of the switchgear in substation
It becomes increasingly conspicuous.High-tension switch cabinet installation misoperation-proof locking device is that power generation guarantees the person, power grid, one of equipment safety
Fundamental measure.High-tension switch cabinet should install perfect misoperation-proof locking device, and have and improve reliable anti-misoperation locking function
Can, mechanical lock should be installed additional without anti mis-closedown function.Electrical verification especially before closing earthing switch blade or opening cabinet door seems outstanding
It is important.
The high voltage display device installed in equipment at present is mostly prompting-type, is even mounted with the electrification display of pressure type
Device can not play its function also because lacking actual forced blocking means and matched interlock.In addition, existing city
Anti-misoperation locking mode on field belongs to that cabinet-type is anti-error mostly, only from the angle at interval, as long as detecting equipment under test
Without electricity, cabinet door can be opened, and logic is too simple, not consider other factors, as long as meeting the cabinet door of this condition in principle all
It can open, thus may cause the cabinet door for opening mistake or some scripts do not need open cabinet door and are opened, there are one
Fixed security risk.Therefore, be badly in need of develop it is a kind of can and microcomputer anti-misoperation system combine and it is self-service judgement route whether there is or not electricity electrification
Display device, eliminate electrical verification be not thorough or open by mistake cabinet door and cause the person and substantial equipment accident.
102761101 B of Chinese patent CN, publication date on October 3rd, 2012, the HV live displaying with anti-error interface
System, including microcomputer and can by mushroom sensor that active signal transmits, can be by mushroom sensor passes
Information carry out Digital Signal Processing electroscopic device, can be with the anti-error computer key interface of anti-error system Seamless integration- and electrical
Contact, and combine with microcomputer anti-error operating system, realize the interface of the forced blocking of various complicated applications and plurality of target equipment
Device, the mistaken-locking prevention device and energy that can will operate bus or line side the earthing knife-switch electromagnetic lock being latched and electrical smart lock composition
The tripper that mistaken-locking prevention device blocking is decoded combines wireless communication technique with induction technology, carries out not
The laying of newly-increased cable and the installation that do not have a power failure；Will electrification display technology in conjunction with lock-out techniques, with microcomputer anti-misoperation system with it is other
Anti-error lock is integrated to be used, and the band electric locking of corresponding equipment is carried out；Using power managed and energy storage display technology, without external electricity
High brightness instruction and output block signal are carried out in the case where source；By interconnector, the route and bus of user's generating equipment
The information of HV live displaying state be included in work flow, carry out pressure electrical verification and operation locking to relevant operation equipment；
It shows and is latched by the electrification that the system that microcomputer and its mistaken-locking prevention device are constituted controls primary equipment, while
Apparatus logic library is established on the platform of microcomputer anti-error operating system, controls operating process.But process is it was verified that electromagnetic lock failure
Rate is very high, and the problems such as causing coil to charge for a long time cannot be returned in time by bite, unblock button often occur, exactly exist it is this not
Reliable problem, nowadays electromagnetic lock is all configured with solution lock key substantially, for electromagnetic lock failure or in emergency circumstances uses, and is somebody's turn to do
For solution lock key often without effectively being managed, there is the phenomenon that arbitrarily using in scene, have security risk.
Summary of the invention
It is an object of the invention to overcome the shortcomings of the prior art, provide a kind of structure be simple and convenient to operate, can
It leans on, good appearance, it can be to the device and application method that high-tension switch cabinet is effectively latched.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: a kind of high-tension switch cabinet earthing switch blade is micro-
Machine anti-misoperation locking device, including high-tension switch cabinet earthing switch blade, charged display device and five are anti-lock, the high-tension switch cabinet ground connection
Plug-in strip includes line-to-ground plug-in strip, bus voltage transformer earthing switch blade and busbar grounding plug-in strip, is connect in route earthing switch blade, bus voltage transformer
It is anti-lock to install five with anti mis-closedown function at ground plug-in strip and busbar grounding plug-in strip additional；Described five it is anti-lock by logic unit with
Charged display device connection；The charged display device includes several high pressure sensor unit, shielding line and display units, institute
It states several high pressure sensor units to connect with a high voltage bus respectively, the shielding line is single by high pressure sensing unit and display
Member connection, the display unit include several instruction lamp positions, electronic circuit and compatible with five anti-computation keys
Computer key interface.Display unit can show whether high voltage bus charges, and with five it is anti-lock connect by logic unit, will
The electrification situation of high voltage bus is sent to five anti-lock, anti-lock prevents hot line job from providing information for five.
Preferably, the electronic circuit includes several booster circuits and several instruction circuits, the booster circuit
It is connect with high pressure sensor unit and instruction circuit, several described instruction circuits are electrically connected with indicator light respectively, the finger
Show that circuit includes zener diode, current-limiting resistance and light emitting diode, booster circuit input terminal one end is connected by shielding line
The output end of high pressure sensing unit, the other end are grounded through current-limiting resistance, booster circuit output end first end and zener diode yin
Pole is connected with light-emitting diodes tube anode, and zener diode anode and light-emitting diodes tube cathode and booster circuit output end second end connect
It connects, the light emitting diode is located at the instruction lamp position.It can be by the friendship after high pressure sensing unit by booster circuit
Galvanic electricity pressure is increased, to improve the brightness of light emitting diode, is enhanced indicating effect, is judged convenient for operator.
Preferably, the electronic circuit includes several booster circuits and several instruction circuits, the booster circuit
It is connect with high pressure sensor unit and instruction circuit；The booster circuit includes capacitor C1, capacitor C2, capacitor C3, capacitor C4, electricity
Hold C5, capacitor C6, diode D1, diode D2, zener diode D11, zener diode D12, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, MOS
Pipe Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 and metal-oxide-semiconductor Q6, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4 and metal-oxide-semiconductor Q6 are depletion type P
Channel MOS tube, metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3 are enhanced N-channel MOS pipe, the capacitor C1, capacitor C2, capacitor C3 and capacitor
C4 parameter is suitable, and the capacitor C5 and capacitor C6 parameter are suitable, the capacitor C1 first end, capacitor C3 first end, two pole of pressure stabilizing
Pipe D11 cathode, zener diode D12 cathode, metal-oxide-semiconductor Q3 drain electrode and metal-oxide-semiconductor Q6 drain electrode connect with port P1, port P1 and
The output end of high pressure sensing unit connects, and capacitor C1 second end and metal-oxide-semiconductor Q1 source electrode and metal-oxide-semiconductor Q2 drain electrode connect, metal-oxide-semiconductor Q1
Drain electrode connect with diode D1 anode and capacitor C2 second end, diode D1 minus earth, metal-oxide-semiconductor Q2 source electrode and capacitor
C2 first end is connected with metal-oxide-semiconductor Q3 source electrode, metal-oxide-semiconductor Q1 grid, metal-oxide-semiconductor Q2 grid, metal-oxide-semiconductor Q3 grid and capacitor C5 first end
It is connect with zener diode D11 anode；Metal-oxide-semiconductor Q1 base stage, metal-oxide-semiconductor Q2 base stage, metal-oxide-semiconductor Q3 base stage, metal-oxide-semiconductor Q4 base stage, MOS
Pipe Q5 base stage, metal-oxide-semiconductor Q6 base stage, capacitor C5 second end and capacitor C6 second end are grounded；Capacitor C3 second end and metal-oxide-semiconductor Q4
Source electrode and metal-oxide-semiconductor Q5 drain electrode connection, metal-oxide-semiconductor Q4 drain electrode and diode D2 cathode are connected with capacitor C4 second end, diode D2
Plus earth, capacitor C4 first end and metal-oxide-semiconductor Q5 source electrode are connected with metal-oxide-semiconductor Q6 source electrode, metal-oxide-semiconductor Q4 grid, metal-oxide-semiconductor Q5 grid
Pole, metal-oxide-semiconductor Q6 grid and capacitor C6 first end are connect with zener diode D12 anode；The instruction circuit includes pressure stabilizing
Diode D13, light emitting diode D21 and current-limiting resistance R, zener diode D13 cathode are connected with capacitor C4 second end, pressure stabilizing two
Pole pipe D13 anode is connect with light emitting diode D21 cathode and current-limiting resistance R first end with capacitor C2 second end, zener diode
D13 cathode is connect with light emitting diode D21 anode, current-limiting resistance R second end ground connection.
The function that above-mentioned booster circuit is completed is that when the electrification of P1 point and current potential is timing, and metal-oxide-semiconductor Q1 is connected with metal-oxide-semiconductor Q3,
Metal-oxide-semiconductor Q2 cut-off, capacitor C1 and C2 is in parallel at this time, when capacitor C1 and C2 complete to charge, metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q3 cut-off,
Metal-oxide-semiconductor Q2 is connected, at this time capacitor C1 and C2 series connection, by adjusting the parameter of zener diode D11 and D12, adjustable metal-oxide-semiconductor
Q1, metal-oxide-semiconductor Q2 connect with metal-oxide-semiconductor Q3 or end the opportunity of variation, match it with the charging process of capacitor C1 and C2；It is similar
Ground will charge, and capacitor C3 and C4 are switched to go here and there by parallel connection when completing charging when P1 point current potential is negative for capacitor C3 and C4
Capacitor C1, C2, C3 and C4 are selected as the biggish capacitor of capacity by connection, and capacitor C5 and C6 select the lesser capacitor of capacity, make P1
Point alternating voltage capacitor C1, C2, C3 and C4 can be charged to after undergoing multiple periods voltage reach zener diode D11 and
The breakdown reverse voltage of D12, so as to be formed with the discharge source that capacitor C1, C2, C3 and C4 are composed in series, so that voltage increases
4 times, the periodically of short duration brightness for improving light emitting diode D21 enhances indicating effect.
Preferably, described five is anti-lock when the logic unit of high-tension switch cabinet charged display device output result is true
Close lock.
A kind of a kind of high-tension switch cabinet ground connection lock carried out using high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device
Knife computer anti-misoperation and lockout method, suitable for a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device above-mentioned, including with
Lower step: A1) operator makes out an invoice according to traffic order；A2 the operation order) drawn up is audited errorless and is signed through positive value, value length
Afterwards, the grid switching operation that certain route is changed to switch and line maintenance by running is carried out；A3) before the earthing switch blade of zygonema road, if high
The cabinet earthing switch blade that compresses switch electrification display computer anti-misoperation and lockout device verifying route can then carry out line-to-ground plug-in strip conjunction without electricity
Lock.
Preferably, operator makes out an invoice according to traffic order, some capacitor is changed to switch and capacitor by running
The operation order of maintenance, specifically includes following process:
B1 the capacitor switch) is pulled open；
B2) check the capacitor switch really in open position；
B3) the switching switch of the capacitor switch distant place/on the spot is switched to regard to position, and is checked；
B4 the capacitor switch trolley) is pulled to testing position by operating position to fix, and is checked；
B5 the capacitor plug-in strip) is pulled open, and is checked；
B6 the female poor output clamping TLP3 of the capacitor switch) is removed, and is checked；
B7) check the capacitor switch really in cold standby；
B8 the capacitor switch trolley secondary inserting piece) is removed；
B9 the capacitor switch trolley is pulled to outside cabinet by testing position), and is checked；
B10 35kV bus differential protection investment pressing plate 1LP1) is removed, and is checked；
B11) with 4 connecting screws by the female difference CT terminal 3SD rheology side short circuit grounding of the capacitor switch；
B12 it) removes capacitor switch mother difference CT terminal 3SD and taps into female poor connecting screw 4, circuit；
B13) check that alarm lamp extinguishes on 35kV bus differential protection RCS-915 device, and no alarm signal on display screen；
B14 35kV bus differential protection investment pressing plate 1LP1) is put, and is checked；
B15) check the capacitor switch really in switch maintenance state；
B16) true no-voltage is verified on the capacitor switch cabinet capacitor-side electrified display interlock apparatus；
B17) on the capacitor switch cabinet electrified display interlock apparatus, using five anti-computation keys, pass through true no-voltage
Verifying；
B18 the capacitor grounding plug-in strip) is closed, and is checked；
B19 it after) identifying true no-voltage between the capacitor end and reactor, hangs # × ground line one and pays, and check；
B20 capacitor switch control power supply air switch 1DK) is disconnected.
Preferably, operator makes out an invoice according to traffic order, certain route is changed to switch and line maintenance by stand-by heat
Operation order, specifically include following process:
C1) check the line switching really in stand-by heat position；
C2 the line switching trolley) is pulled to testing position by operating position to fix, and is checked；
C3 route route buckling auxiliary air switch ZKK) is disconnected；
C4 the route route buckling trolley) is pulled to testing position by operating position to fix, and is checked；
C5 the female poor output clamping TLP15 of the line switching) is removed, and is checked；
C6) check the line switching really in cold standby；
C7 the line switching trolley secondary inserting piece) is removed；
C8 the line switching trolley is pulled to outside cabinet by testing position), and is checked；
C9 the route route buckling trolley secondary inserting piece) is removed；
C10 the route route buckling trolley is pulled to outside cabinet by testing position), and is checked；
C11 35kV bus differential protection investment pressing plate 1LP1) is removed, and is checked；
C12) with 4 connecting screws by the female difference CT terminal 15SD rheology side short circuit grounding of the line switching；
C13 it) removes line switching mother difference CT terminal 15SD and taps into female poor connecting screw 4, circuit；
C14) check that alarm lamp extinguishes on 35kV bus differential protection RCS-915 device, and no alarm signal on display screen；
C15 35kV bus differential protection investment pressing plate 1LP1) is put, and is checked；
C16 the true no-voltage of three-phase) is identified between the line switching and route wall bushing；
C17) true no-voltage is verified on the line switching cabinet line side electrified display interlock apparatus；
C18 it) is verified using five anti-computation keys by true no-voltage on the route electrified display interlock apparatus；
C19 the route line-to-ground plug-in strip) is closed, and is checked；
C20 line switching control power supply air switch 1DK) is disconnected.
Preferably, five anti-computation keys combine making for this high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device
With method the following steps are included: D1) corresponding operation sequence is inputted in temperature survey by c omputer, and pass to five preventing keys；D2 it) presses
It is operated item by item according to operation order, and passes through the correctness of five preventing key verification operation sequences, wherein before closing earthing switch blade,
By five preventing keys insertion high-tension switch cabinet earthing switch blade electrification display computer anti-misoperation and lockout device, whether verifying route is charged, if
Then continue to operate without electricity, if there is electricity, stops operation and check reason, after debugging, the electrification of high-tension switch cabinet earthing switch blade
Show that computer anti-misoperation and lockout device shows that route without electricity, then continues to operate.
Substantial effect of the invention is the perfect anti mis-closedown function of high-tension switch cabinet earthing switch blade of: the present invention, tools
It substantially reduces misoperation fault probability of happening and effective guarantee operation, service personnel's personal safety and ensures electric power netting safe running
The advantages of.
Detailed description of the invention
Fig. 1 is high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout structure drawing of device.
Fig. 2 is charged display device structure chart.
Fig. 3 is that booster circuit and instruction circuit are electrically connected schematic diagram.
Fig. 4 is five anti-computation key application method flow charts.
Wherein: 1, high voltage bus, 2, high pressure sensing unit, 3, display unit, 4, shielding line, 5, instruction lamp position, 6, computer
Key interface.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, a specific embodiment of the invention is further described in detail.
As shown in Figure 1, being high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout structure drawing of device, as shown in Fig. 2, for electrification
Display device structure figure, high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device include high-tension switch cabinet earthing switch blade, electrification
Display device and five anti-lock, high-tension switch cabinet earthing switch blade includes that line-to-ground plug-in strip, bus voltage transformer earthing switch blade and bus connect
Ground plug-in strip, installing additional at route earthing switch blade, bus voltage transformer earthing switch blade and busbar grounding plug-in strip has anti mis-closedown function
It is five anti-lock；Five anti-lock are connect by logic unit with charged display device；Charged display device includes several high pressures sensing
Device unit 2, shielding line 4 and display unit 3, several high pressure sensor units 2 are connect with a high voltage bus 1 respectively, shielding
High pressure sensing unit 2 is connect by line 4 with display unit 3, display unit 3 include several instruction lamp positions 5, electronic circuit and with
The compatible computer key interface 6 of five anti-computation keys.Display unit 3 can show whether high voltage bus 1 charges, and
With five it is anti-lock connect by logic unit, the electrification situation of high voltage bus 1 is sent to five anti-lock, anti-lock prevents electrification from grasping for five
Offer information is provided.
As shown in figure 3, being electrically connected schematic diagram for booster circuit and instruction circuit, electronic circuit includes several boosting electricity
Road and several instruction circuits, booster circuit are connect with high pressure sensor unit and instruction circuit；Booster circuit include capacitor C1,
Capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, diode D1, diode D2, zener diode D11, zener diode
D12, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 and metal-oxide-semiconductor Q6, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4
It is depletion type P-channel metal-oxide-semiconductor with metal-oxide-semiconductor Q6, metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3 are enhanced N-channel MOS pipe, capacitor C1, electricity
Hold C2, capacitor C3 and capacitor C4 parameter it is suitable, capacitor C5 and capacitor C6 parameter are suitable, capacitor C1 first end, capacitor C3 first end,
Zener diode D11 cathode, zener diode D12 cathode, metal-oxide-semiconductor Q3 drain electrode and metal-oxide-semiconductor Q6 drain electrode are connect with port P1,
Port P1 is connect with the output end of high pressure sensing unit, and capacitor C1 second end and metal-oxide-semiconductor Q1 source electrode and metal-oxide-semiconductor Q2 drain electrode connect
It connects, the drain electrode of metal-oxide-semiconductor Q1 is connect with diode D1 anode and capacitor C2 second end, diode D1 minus earth, the source metal-oxide-semiconductor Q2
Pole and capacitor C2 first end are connected with metal-oxide-semiconductor Q3 source electrode, metal-oxide-semiconductor Q1 grid, metal-oxide-semiconductor Q2 grid, metal-oxide-semiconductor Q3 grid and electricity
Hold C5 first end to connect with zener diode D11 anode；Metal-oxide-semiconductor Q1 base stage, metal-oxide-semiconductor Q2 base stage, metal-oxide-semiconductor Q3 base stage, metal-oxide-semiconductor
Q4 base stage, metal-oxide-semiconductor Q5 base stage, metal-oxide-semiconductor Q6 base stage, capacitor C5 second end and capacitor C6 second end are grounded；Capacitor C3 second end
And metal-oxide-semiconductor Q4 source electrode and metal-oxide-semiconductor Q5 drain electrode connection, metal-oxide-semiconductor Q4 drain electrode and diode D2 cathode and capacitor C4 second end connect
It connecing, diode D2 plus earth, capacitor C4 first end and metal-oxide-semiconductor Q5 source electrode are connected with metal-oxide-semiconductor Q6 source electrode, metal-oxide-semiconductor Q4 grid,
Metal-oxide-semiconductor Q5 grid, metal-oxide-semiconductor Q6 grid and capacitor C6 first end are connect with zener diode D12 anode；Instruction circuit includes
Zener diode D13, light emitting diode D21 and current-limiting resistance R, zener diode D13 cathode are connected with capacitor C4 second end, surely
Pressure diode D13 anode is connect with light emitting diode D21 cathode and current-limiting resistance R first end with capacitor C2 second end, pressure stabilizing two
Pole pipe D13 cathode is connect with light emitting diode D21 anode, current-limiting resistance R second end ground connection.
The function that booster circuit is completed are as follows: when the electrification of P1 point and current potential is timing, and metal-oxide-semiconductor Q1 is connected with metal-oxide-semiconductor Q3, MOS
Pipe Q2 cut-off, capacitor C1 and C2 is in parallel at this time, when capacitor C1 and C2 complete to charge, metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q3 cut-off, and metal-oxide-semiconductor
Q2 is connected, at this time capacitor C1 and C2 series connection, by adjusting the parameter of zener diode D11 and D12, adjustable metal-oxide-semiconductor Q1,
Metal-oxide-semiconductor Q2 connects with metal-oxide-semiconductor Q3 or ends the opportunity of variation, matches it with the charging process of capacitor C1 and C2；Similarly, when
When P1 point current potential is negative, it will charge for capacitor C3 and C4, and capacitor C3 and C4 are switched to connect by parallel connection when completing charging, it will be electric
Hold C1, C2, C3 and C4 and is selected as the biggish capacitor of capacity, and capacitor C5 and C6 select the lesser capacitor of capacity, exchange P1 point
Capacitor C1, C2, C3 and C4 can be charged to voltage after undergoing multiple periods and reach zener diode D11 and D12 by voltage
Breakdown reverse voltage, so as to be formed with the discharge source that capacitor C1, C2, C3 and C4 are composed in series, so that voltage increases 4 times,
The periodically of short duration brightness for improving light emitting diode D21, enhances indicating effect.
High-tension switch cabinet earthing switch blade computer anti-misoperation and lockout method, comprising the following steps: A1) operator according to scheduling order
Order is made out an invoice；A2 the operation order) drawn up carries out certain route and is changed to switch by running after positive value, value length audit errorless and signature
And the grid switching operation of line maintenance；A3) before the earthing switch blade of zygonema road, if high-tension switch cabinet earthing switch blade electrification display microcomputer is anti-
Misoperation locking device verifies route without electricity, then can carry out line-to-ground plug-in strip combined floodgate.
Operator makes out an invoice according to traffic order, some capacitor is changed to the operation of switch and capacitor maintenance by running
Ticket specifically includes following process:
B1 the capacitor switch) is pulled open；
B2) check the capacitor switch really in open position；
B3) the switching switch of the capacitor switch distant place/on the spot is switched to regard to position, and is checked；
B4 the capacitor switch trolley) is pulled to testing position by operating position to fix, and is checked；
B5 the capacitor plug-in strip) is pulled open, and is checked；
B6 the female poor output clamping TLP3 of the capacitor switch) is removed, and is checked；
B7) check the capacitor switch really in cold standby；
B8 the capacitor switch trolley secondary inserting piece) is removed；
B9 the capacitor switch trolley is pulled to outside cabinet by testing position), and is checked；
B10 35kV bus differential protection investment pressing plate 1LP1) is removed, and is checked；
B11) with 4 connecting screws by the female difference CT terminal 3SD rheology side short circuit grounding of the capacitor switch；
B12 it) removes capacitor switch mother difference CT terminal 3SD and taps into female poor connecting screw 4, circuit；
B13) check that alarm lamp extinguishes on 35kV bus differential protection RCS-915 device, and no alarm signal on display screen；
B14 35kV bus differential protection investment pressing plate 1LP1) is put, and is checked；
B15) check the capacitor switch really in switch maintenance state；
B16) true no-voltage is verified on the capacitor switch cabinet capacitor-side electrified display interlock apparatus；
B17) on the capacitor switch cabinet electrified display interlock apparatus, using five anti-computation keys, pass through true no-voltage
Verifying；
B18 the capacitor grounding plug-in strip) is closed, and is checked；
B19 it after) identifying true no-voltage between the capacitor end and reactor, hangs # × ground line one and pays, and check；
B20 capacitor switch control power supply air switch 1DK) is disconnected.
Operator makes out an invoice according to traffic order, certain route is changed to the operation order of switch and line maintenance by stand-by heat,
Specifically include following process:
C1) check the line switching really in stand-by heat position；
C2 the line switching trolley) is pulled to testing position by operating position to fix, and is checked；
C3 route route buckling auxiliary air switch ZKK) is disconnected；
C4 the route route buckling trolley) is pulled to testing position by operating position to fix, and is checked；
C5 the female poor output clamping TLP15 of the line switching) is removed, and is checked；
C6) check the line switching really in cold standby；
C7 the line switching trolley secondary inserting piece) is removed；
C8 the line switching trolley is pulled to outside cabinet by testing position), and is checked；
C9 the route route buckling trolley secondary inserting piece) is removed；
C10 the route route buckling trolley is pulled to outside cabinet by testing position), and is checked；
C11 35kV bus differential protection investment pressing plate 1LP1) is removed, and is checked；
C12) with 4 connecting screws by the female difference CT terminal 15SD rheology side short circuit grounding of the line switching；
C13 it) removes line switching mother difference CT terminal 15SD and taps into female poor connecting screw 4, circuit；
C14) check that alarm lamp extinguishes on 35kV bus differential protection RCS-915 device, and no alarm signal on display screen；
C15 35kV bus differential protection investment pressing plate 1LP1) is put, and is checked；
C16 the true no-voltage of three-phase) is identified between the line switching and route wall bushing；
C17) true no-voltage is verified on the line switching cabinet line side electrified display interlock apparatus；
C18 it) is verified using five anti-computation keys by true no-voltage on the route electrified display interlock apparatus；
C19 the route line-to-ground plug-in strip) is closed, and is checked；
C20 line switching control power supply air switch 1DK) is disconnected.
As shown in figure 4, being five anti-computation key application method flow charts.Five anti-computation keys combine this high pressure
The application method of switch-cabinet grounding plug-in strip computer anti-misoperation and lockout device is the following steps are included: D1) it is inputted in temperature survey by c omputer
Corresponding operation sequence, and pass to five preventing keys；D2 it) is operated item by item according to operation order, and passes through five preventing keys verifying behaviour
The correctness of work sequence, wherein before closing earthing switch blade, the insertion high-tension switch cabinet earthing switch blade electrification display of five preventing keys is micro-
Whether machine anti-misoperation locking device, verifying route charge, continue to operate if without electricity, if there is electricity, stop operation and check reason,
After debugging, high-tension switch cabinet earthing switch blade electrification display computer anti-misoperation and lockout device shows that route without electricity, then continues to operate.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device, which is characterized in that
It is anti-lock including high-tension switch cabinet earthing switch blade, charged display device and five,
The high-tension switch cabinet earthing switch blade includes line-to-ground plug-in strip, bus voltage transformer earthing switch blade and busbar grounding plug-in strip,
It is anti-lock to install five with anti mis-closedown function at line-to-ground plug-in strip, bus voltage transformer earthing switch blade and busbar grounding plug-in strip additional；
Described five anti-lock are connect by logic unit with charged display device；The charged display device includes several high pressure sensors
Unit, shielding line and display unit, several described high pressure sensor units are connect with a high voltage bus respectively, the shielding
High pressure sensing unit is connect by line with display unit, the display unit include several instruction lamp positions, electronic circuit and with
The compatible computer key interface of five anti-computation keys, the electronic circuit includes several booster circuits and several refer to
Show circuit.
2. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device according to claim 1, which is characterized in that
The booster circuit and high pressure sensor unit and instruction circuit connects, described several indicate circuits respectively with indicator light
Electrical connection, the instruction circuit includes zener diode, current-limiting resistance and light emitting diode, the booster circuit input terminal one
End is connected the output end of high pressure sensing unit by shielding line, and the other end is grounded through current-limiting resistance, booster circuit output end first end
It is connect with zener diode cathode and light-emitting diodes tube anode, zener diode anode and light-emitting diodes tube cathode and booster circuit
The connection of output end second end, the light emitting diode are located at the instruction lamp position.
3. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device according to claim 2, which is characterized in that
The electronic circuit includes several booster circuits and several indicate circuits, the booster circuit and high pressure sensor list
Member is connected with instruction circuit；
The booster circuit includes capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, diode D1, diode
D2, zener diode D11, zener diode D12, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 and metal-oxide-semiconductor
Q6, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4 and metal-oxide-semiconductor Q6 are depletion type P-channel metal-oxide-semiconductor, metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3
It is enhanced N-channel MOS pipe, the capacitor C1, capacitor C2, capacitor C3 and capacitor C4 parameter are suitable, the capacitor C5 and electricity
It is suitable to hold C6 parameter, the capacitor C1 first end, capacitor C3 first end, zener diode D11 cathode, zener diode D12 yin
Pole, metal-oxide-semiconductor Q3 drain electrode and metal-oxide-semiconductor Q6 drain electrode are connect with port P1, and port P1 is connect with the output end of high pressure sensing unit,
Capacitor C1 second end and the drain electrode connection of metal-oxide-semiconductor Q1 source electrode and metal-oxide-semiconductor Q2, the drain electrode of metal-oxide-semiconductor Q1 and diode D1 anode and
The connection of capacitor C2 second end, diode D1 minus earth, metal-oxide-semiconductor Q2 source electrode and capacitor C2 first end and metal-oxide-semiconductor Q3 source electrode connect
It connects, metal-oxide-semiconductor Q1 grid, metal-oxide-semiconductor Q2 grid, metal-oxide-semiconductor Q3 grid and capacitor C5 first end connect with zener diode D11 anode
It connects；
Metal-oxide-semiconductor Q1 base stage, metal-oxide-semiconductor Q2 base stage, metal-oxide-semiconductor Q3 base stage, metal-oxide-semiconductor Q4 base stage, metal-oxide-semiconductor Q5 base stage, metal-oxide-semiconductor Q6 base stage,
Capacitor C5 second end and capacitor C6 second end are grounded；
Capacitor C3 second end and the drain electrode connection of metal-oxide-semiconductor Q4 source electrode and metal-oxide-semiconductor Q5, metal-oxide-semiconductor Q4 drain electrode and diode D2 cathode
It is connected with capacitor C4 second end, diode D2 plus earth, capacitor C4 first end and metal-oxide-semiconductor Q5 source electrode and metal-oxide-semiconductor Q6 source electrode
Connection, metal-oxide-semiconductor Q4 grid, metal-oxide-semiconductor Q5 grid, metal-oxide-semiconductor Q6 grid and capacitor C6 first end with zener diode D12 anode
Connection；
The instruction circuit includes zener diode D13, light emitting diode D21 and current-limiting resistance R, zener diode D13 cathode
It is connected with capacitor C4 second end, zener diode D13 anode and light emitting diode D21 cathode and current-limiting resistance R first end and electricity
Hold the connection of C2 second end, zener diode D13 cathode is connect with light emitting diode D21 anode, current-limiting resistance R second end ground connection.
4. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device according to claim 2, which is characterized in that
When the logic unit of high-tension switch cabinet charged display device output result is true, described five prevent sealed lock.
5. a kind of high-tension switch cabinet earthing switch blade microcomputer carried out using high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device
Interlocking Methods are suitable for a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout as claimed in claim 2 or 3 or 4
Device, which is characterized in that
The following steps are included:
A1) operator makes out an invoice according to traffic order；
A2 the operation order) drawn up carries out certain route by running and is changed to switch and line after positive value, value length audit errorless and signature
The grid switching operation of road maintenance；
A3) before the earthing switch blade of zygonema road, if high-tension switch cabinet earthing switch blade electrification display computer anti-misoperation and lockout device verifies line
Lu Wu electricity can then carry out line-to-ground plug-in strip combined floodgate.
6. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout method according to claim 5, which is characterized in that
Operator makes out an invoice according to traffic order, some capacitor is changed to the operation order of switch and capacitor maintenance by running,
Specifically include following process:
B1 the capacitor switch) is pulled open；
B2) check the capacitor switch really in open position；
B3) the switching switch of the capacitor switch distant place/on the spot is switched to regard to position, and is checked；
B4 the capacitor switch trolley) is pulled to testing position by operating position to fix, and is checked；
B5 the capacitor plug-in strip) is pulled open, and is checked；
B6 the female poor output clamping TLP3 of the capacitor switch) is removed, and is checked；
B7) check the capacitor switch really in cold standby；
B8 the capacitor switch trolley secondary inserting piece) is removed；
B9 the capacitor switch trolley is pulled to outside cabinet by testing position), and is checked；
B10 35kV bus differential protection investment pressing plate 1LP1) is removed, and is checked；
B11) with 4 connecting screws by the female difference CT terminal 3SD rheology side short circuit grounding of the capacitor switch；
B12 it) removes capacitor switch mother difference CT terminal 3SD and taps into female poor connecting screw 4, circuit；
B13) check that alarm lamp extinguishes on 35kV bus differential protection RCS-915 device, and no alarm signal on display screen；
B14 35kV bus differential protection investment pressing plate 1LP1) is put, and is checked；
B15) check the capacitor switch really in switch maintenance state；
B16) true no-voltage is verified on the capacitor switch cabinet capacitor-side electrified display interlock apparatus；
B17) on the capacitor switch cabinet electrified display interlock apparatus, using five anti-computation keys, pass through true no-voltage
Verifying；
B18 the capacitor grounding plug-in strip) is closed, and is checked；
B19 it after) identifying true no-voltage between the capacitor end and reactor, hangs # × ground line one and pays, and check；
B20 capacitor switch control power supply air switch 1DK) is disconnected.
7. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout method according to claim 5 or 6, feature exist
In,
Operator makes out an invoice according to traffic order, certain route is changed to the operation order of switch and line maintenance by stand-by heat, specifically
It comprises the following steps:
C1) check the line switching really in stand-by heat position；
C2 the line switching trolley) is pulled to testing position by operating position to fix, and is checked；
C3 route route buckling auxiliary air switch ZKK) is disconnected；
C4 the route route buckling trolley) is pulled to testing position by operating position to fix, and is checked；
C5 the female poor output clamping TLP15 of the line switching) is removed, and is checked；
C6) check the line switching really in cold standby；
C7 the line switching trolley secondary inserting piece) is removed；
C8 the line switching trolley is pulled to outside cabinet by testing position), and is checked；
C9 the route route buckling trolley secondary inserting piece) is removed；
C10 the route route buckling trolley is pulled to outside cabinet by testing position), and is checked；
C11 35kV bus differential protection investment pressing plate 1LP1) is removed, and is checked；
C12) with 4 connecting screws by the female difference CT terminal 15SD rheology side short circuit grounding of the line switching；
C13 it) removes line switching mother difference CT terminal 15SD and taps into female poor connecting screw 4, circuit；
C14) check that alarm lamp extinguishes on 35kV bus differential protection RCS-915 device, and no alarm signal on display screen；
C15 35kV bus differential protection investment pressing plate 1LP1) is put, and is checked；
C16 the true no-voltage of three-phase) is identified between the line switching and route wall bushing；
C17) true no-voltage is verified on the line switching cabinet line side electrified display interlock apparatus；
C18 it) is verified using five anti-computation keys by true no-voltage on the route electrified display interlock apparatus；
C19 the route line-to-ground plug-in strip) is closed, and is checked；
C20 line switching control power supply air switch 1DK) is disconnected.
8. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout method according to claim 5 or 6, feature exist
In,
Five anti-computation keys combine this high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device application method include with
Lower step:
D1 corresponding operation sequence) is inputted in temperature survey by c omputer, and passes to five preventing keys；
D2 it) is operated item by item according to operation order, and passes through the correctness of five preventing key verification operation sequences, wherein in splice grafting
Before ground plug-in strip, by five preventing keys insertion high-tension switch cabinet earthing switch blade electrification display computer anti-misoperation and lockout device, verifying route is
No electrification continues to operate, if there is electricity, stops operation and check reason if without electricity, after debugging, high-tension switch cabinet ground connection
Plug-in strip electrification display computer anti-misoperation and lockout device shows that route without electricity, then continues to operate.
9. a kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout method according to claim 7, which is characterized in that
Five anti-computation keys combine this high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device application method include with
Lower step:
D1 corresponding operation sequence) is inputted in temperature survey by c omputer, and passes to five preventing keys；
D2 it) is operated item by item according to operation order, and passes through the correctness of five preventing key verification operation sequences, wherein in splice grafting
Before ground plug-in strip, by five preventing keys insertion high-tension switch cabinet earthing switch blade electrification display computer anti-misoperation and lockout device, verifying route is
No electrification continues to operate, if there is electricity, stops operation and check reason if without electricity, after debugging, high-tension switch cabinet ground connection
Plug-in strip electrification display computer anti-misoperation and lockout device shows that route without electricity, then continues to operate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810313106.5A CN109473871B (en) | 2018-04-09 | 2018-04-09 | Microcomputer anti-misoperation locking device and method for grounding knife switch of high-voltage switch cabinet |
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| CN201810313106.5A CN109473871B (en) | 2018-04-09 | 2018-04-09 | Microcomputer anti-misoperation locking device and method for grounding knife switch of high-voltage switch cabinet |
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