CN107482523B - Double bus scheme GIS device and its repair method, pressure resistant test method - Google Patents
Double bus scheme GIS device and its repair method, pressure resistant test method Download PDFInfo
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- CN107482523B CN107482523B CN201710860883.7A CN201710860883A CN107482523B CN 107482523 B CN107482523 B CN 107482523B CN 201710860883 A CN201710860883 A CN 201710860883A CN 107482523 B CN107482523 B CN 107482523B
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- gas chamber
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- chamber unit
- circuit element
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Classifications
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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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0358—Connections to in or out conductors
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
-
- 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
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/22—Layouts for duplicate bus-bar selection
-
- 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
Abstract
The present invention is a kind of double bus scheme GIS device, including outgoing line unit, the first bus, the second bus, mother line, the first gas chamber group, the second gas chamber group, the 9th gas chamber unit, mother gas chamber；Outgoing line unit includes the first outlet and the second outlet, further includes the conversion line for connecting the first outlet and the second outlet, and conversion line, which is equipped with, is used for opening and closing of change-over switch, and outgoing line unit is equipped with multiple.When carrying out Disintegration overhaul to the first circuit element or tertiary circuit element or change-over switch, stop together without double-bus；When carrying out pressure test to the first bus or the second bus, stop together without double-bus；When carrying out pressure test to the first three-station or the second three-station or third three-station or the 4th three-station, stop without double-bus is same, stop even if double-bus is same, also the first outlet and the second outlet can be connected to by change-over switch, form temporary power channel, to improve power supply reliability, generation system operation risk is avoided.
Description
Technical field
The present invention relates to GIS device technical fields, more particularly to a kind of double bus scheme GIS device and its maintenance side
Method, pressure resistant test method.
Background technique
GIS is the english abbreviation of Gas Insulated Switchgear, refers to gas insulated switchgear equipment, because
Its comprehensive advantage in terms of occupied area, antidetonation and anti-pollution performance, electromagnetic radiation and operation, in power engineering
Application gradually increase.
According to DL/T 5218-2012 " 220kV~750kV Substation Design technical regulation ", in 220kV substation
220kV power distribution equipment preferably uses double bus scheme when occupying critical role, transmission line circuit number in systems is 4 times or more.
Double-bus or double mothers can be used when transmission line circuit number is at 6 times or more in 110kV, 66kV power distribution equipment in 220kV substation
Line section wiring.
When double bus scheme mode outstanding feature can be achieved on single busbar power failure, operated by " bus " without shadow
Ring inlet-outlet line power elements.The GIS device of existing double bus scheme due to its design feature in breaker gas chamber Disintegration overhaul and
Double-bus is both needed to when bus or bus isolating switch pressure test to stop together.Double-bus is same to stop that power supply reliability will be reduced, increases system
System operation risk, is that grid company wishes strongly to avoid the problem that.
Summary of the invention
Based on this, it is necessary to double-bus when for circuit element Disintegration overhaul and bus or bus isolating switch pressure test
With the problem of stopping, a kind of double bus scheme GIS device and its repair method, pressure resistant test method are provided.
Its technical solution is as follows:
A kind of double bus scheme GIS device, including outgoing line unit, the first bus, the second bus, mother line, the first gas chamber
Group, the second gas chamber group, the 9th gas chamber unit, mother gas chamber；Outgoing line unit includes the first outlet and the second outlet, further includes connection
The conversion line of first outlet and the second outlet, conversion line, which is equipped with, is used for opening and closing of change-over switch, and outgoing line unit is set
Have multiple；First bus includes the first linkage section, and one end of the first outlet is electrically connected with the first linkage section, and the first outlet is at least set
There are the first three-station, the first circuit element and second circuit element；Second bus includes the second linkage section, the second outlet
One end is electrically connected with the second linkage section, and the second outlet is at least provided with the second three-station, tertiary circuit element and the 4th circuit
Element；First bus further includes the first mother section, and the second bus further includes the second mother section, one end of mother line and the first mother
Section electrical connection, the other end of mother line are electrically connected with the second mother section, and mother line is at least provided with third three-station, the four or three
Position switch and the 5th circuit element；High pressure sulfur hexafluoride gas is equipped in first gas chamber group, the first gas chamber group includes the first gas
Chamber unit, the second gas chamber unit, third gas chamber unit and the 4th gas chamber unit, the second gas chamber unit be located at the first gas chamber unit and
Between third gas chamber unit, third gas chamber unit is located between the second gas chamber unit and the 4th gas chamber unit；In second gas chamber group
Equipped with high pressure sulfur hexafluoride gas, the second gas chamber group includes the 5th gas chamber unit, the 6th gas chamber unit, the 7th gas chamber unit and the
Eight gas chamber units, the 6th gas chamber unit are located between the 5th gas chamber unit and the 7th gas chamber unit, and the 7th gas chamber unit is located at
Between six gas chamber units and the 8th gas chamber unit；9th gas chamber unit is located between the second gas chamber unit and the 6th gas chamber unit；
First outlet carries out cabling setting by the first gas chamber unit, the second gas chamber unit, third gas chamber unit and the 4th gas chamber unit,
First linkage section and the first three-station are located in the first gas chamber unit, and the first circuit element is located in third gas chamber unit,
Second circuit element is located in the 4th gas chamber unit, and the 5th gas chamber unit, the 6th gas chamber unit, the 7th gas chamber are passed through in the second outlet
Unit and the 8th gas chamber unit carry out cabling setting, and the second linkage section and the second three-station are located in the 5th gas chamber unit,
Tertiary circuit element is located in the 7th gas chamber unit, and the 4th circuit element is located in the 8th gas chamber unit, and conversion line is by the
Two gas chamber units, the 9th gas chamber unit and the 6th gas chamber unit carry out cabling setting, the connection position of conversion line and the first outlet
It is set in the second gas chamber unit, the link position of conversion line and the second outlet is located in the 6th gas chamber unit, change-over switch
It is located in the 9th gas chamber unit；It is equipped with high pressure sulfur hexafluoride gas in mother gas chamber, mother gas chamber includes the first mother gas chamber, the
Two mother gas chambers, third mother gas chamber, the 4th mother gas chamber and the 5th mother gas chamber, the second mother gas chamber are located at the first mother gas
Between room and third mother gas chamber, the 4th mother gas chamber is located between third mother gas chamber and the 5th mother gas chamber；Mother line warp
The first mother gas chamber, the second mother gas chamber, third mother gas chamber, the 4th mother gas chamber and the 5th mother gas chamber progress cabling is crossed to set
It sets, the first mother section and third three-station are located in the first mother gas chamber, and the second mother section and the 4th three-station are set
In the 5th mother gas chamber, the 5th circuit element is located in third mother gas chamber；First circuit element, tertiary circuit element and
Five circuit elements include at least a breaker, and second circuit element and the 4th circuit element include at least three stations
Switch.
Above-mentioned double bus scheme GIS device, by the setting of the 9th gas chamber unit and change-over switch, when to the first circuit elements
When part or tertiary circuit element or change-over switch carry out Disintegration overhaul, stop together without double-bus；When female to the first bus or second
When line carries out pressure test, stop together without double-bus；When to bus isolating switch namely the first three-station or the two or three work
When bit switch or third three-station or the 4th three-station carry out pressure test, stop without double-bus is same, meanwhile, In
When first bus has a power failure, it is closed change-over switch and is run with snapping on the second bus the first outlet by " bus " operation,
Guarantee the normal power supply of the first outlet, the second bus can be operated similarly when having a power failure, to further increase power supply reliability, avoid producing
Raw system operation risk, moreover, even if double-bus with stopping, can also be connected to by change-over switch the first outlet and the second outlet with
Temporary power channel is formed, further raising power supply reliability.
Technical solution is illustrated further below:
It in one of the embodiments, further include the first wire box, the second wire box, cross box, the first bus-bar chamber and
Two bus-bar chambers, the first wire box include the first circuit element case, second circuit component box and the first cable terminal box, the second outlet
Case includes tertiary circuit component box, the 4th circuit element case and the second cable terminal box, one end of second circuit component box and the
One circuit element case is detachably connected, and the other end of second circuit component box is detachably connected with the first cable terminal box, and the 4th
One end of circuit element case is detachably connected with tertiary circuit component box, and the other end of the 4th circuit element case and the second cable are whole
End case is detachably connected, and the first cable terminal box is set to one end of the first wire box, the other end of the first wire box and the first mother
Line case is detachably connected, and the second cable terminal box is set to one end of the second wire box, the other end of the second wire box and the second mother
Line case is detachably connected, and one end of cross box is detachably connected with the first wire box, the other end of cross box and the second wire box
It is detachably connected, the first bus is set to the first bus-bar chamber, and the second bus is set to the second bus-bar chamber, and the first gas chamber unit is set to first
The link position of wire box and the first bus-bar chamber, third gas chamber unit are set to the first circuit element case, and the 4th gas chamber unit is set to
Second circuit component box, the 5th gas chamber unit are set to the link position of the second wire box and the second bus-bar chamber, the 7th gas chamber unit
Set on tertiary circuit component box, the 8th gas chamber unit is set to the 4th circuit element case, the second gas chamber unit, the 6th gas chamber unit and
9th gas chamber unit is set to cross box.Setting in this way, so that outgoing line unit, the first bus, the second bus and conversion line
Road is set in corresponding cabinet.
First wire box, the second wire box, cross box, the first bus-bar chamber and the second bus in one of the embodiments,
Case is equipped with the stuffiness disc insulator for partitioned air chambers.Corresponding cabinet is divided into using stuffiness disc insulator
Different gas chamber units fills the functional requirement for setting high pressure sulfur hexafluoride insulating gas and meeting high-voltage isulation to meet.
A kind of repair method of the double bus scheme GIS device as described in any of the above-described technical solution, including following step
It is rapid:
High pressure sulfur hexafluoride gas in third gas chamber unit is depressured, until the pressure in third gas chamber unit is
Safety detection pressure；
At least half that high pressure sulfur hexafluoride gas pressure in second gas chamber unit is reduced to its original pressure, by the 4th
High pressure sulfur hexafluoride gas pressure in gas chamber unit reduces at least half of its original pressure；
The first three-station in the first gas chamber unit is disconnected, the two or three station disconnected in the 5th gas chamber unit is opened
It closes；
Start to carry out Disintegration overhaul to the first circuit element.
The step is directed to the first circuit element gas chamber Disintegration overhaul, at this point, due to the first gas chamber unit and the 5th gas chamber list
Member can still maintain normal air chamber pressure, thus the first bus and the second bus are not necessarily to have a power failure.Therefore, which avoids
It needs double-bus with the problem of stopping when the first circuit element gas chamber Disintegration overhaul, power supply reliability is improved, similarly, to tertiary circuit
When element carries out gas chamber Disintegration overhaul, similarly avoidable double-bus improves power supply reliability with the problem of stopping.
A kind of repair method of the double bus scheme GIS device as described in any of the above-described technical solution, including following step
It is rapid:
High pressure sulfur hexafluoride gas in 9th gas chamber unit is depressured, until the pressure in the 9th gas chamber unit is
Safety detection pressure；
At least half that high pressure sulfur hexafluoride gas pressure in second gas chamber unit is reduced to its original pressure, by the 6th
High pressure sulfur hexafluoride gas pressure in gas chamber unit reduces at least half of its original pressure；
The first three-station in the first gas chamber unit is disconnected, the second three-station in the 5th gas chamber unit is disconnected
Start to carry out Disintegration overhaul to change-over switch.
The step is directed to change-over switch gas chamber Disintegration overhaul, at this point, still due to the first gas chamber unit and the 5th gas chamber unit
Normal air chamber pressure can be maintained, thus the first bus and the second bus are not necessarily to have a power failure.Therefore, which avoids first
It needs double-bus with the problem of stopping when circuit element gas chamber Disintegration overhaul, improves power supply reliability.
A kind of pressure resistant test method of the double bus scheme GIS device as described in any of the above-described technical solution is normal to transport
When row, change-over switch is disconnected, and the first three-station, the second three-station, third three-station, the four or three station are opened
Pass, the first circuit element, second circuit element, tertiary circuit element, the 4th circuit element and the 5th circuit element are closed fortune
Row executes step (i) when carrying out pressure test to the first bus or the first three-station；When to the second bus or second
Three-station carries out executing step (ii) when pressure test；When carrying out pressure test to third three-station, step is executed
Suddenly (iii)；When carrying out pressure test to the 4th three-station, execute step (iv)；
(i), the second three-station, tertiary circuit element, third three-station and the 5th circuit element are at least disconnected,
And make remaining each outlet of the first bus between the first bus at least provided with two fractures, to the first bus or the one or three
Position switch carries out pressure test；
(ii), the first three-station, the first circuit element, the 4th three-station and the 5th circuit elements are at least disconnected
Part, and remaining each outlet of the second bus is made to be equipped at least two fractures between the second bus, to the second bus or the
Two three-stations carry out pressure test；
(iii), the second three-station, tertiary circuit element, the 4th three-station, the 5th circuit elements are at least disconnected
Part, and remaining each outlet of the first bus is made to be equipped at least two fractures between the first bus, the three or three station is opened
Put row pressure test into；
(iv), the first three-station, the first circuit element, third three-station, the 5th circuit element are at least disconnected,
And make remaining each outlet of the second bus between the second bus be equipped at least two fractures, to the 4th three-station into
Row pressure test.
Pressure test is carried out using this method, can avoid double-bus with the problem of stopping, and guarantees the first mother when pressure test
In line or the second bus wherein one can operate normally, to guarantee the power supply along bus, simultaneously as change-over switch
Setting, can also be further ensured that more route normal power supplies, to improve power supply reliability.
Detailed description of the invention
Fig. 1 is the circuit and air chamber structure schematic diagram of double bus scheme GIS device；
Fig. 2 is the box structure diagram of double bus scheme GIS device；
Fig. 3 is the structural schematic diagram at the visual angle A-A of Fig. 2；
Fig. 4 is the structural schematic diagram at the visual angle B-B of Fig. 2；
Fig. 5 is the structural schematic diagram at the visual angle C-C after the first wire box of removal of Fig. 2.
110, the first bus-bar chamber, the 120, first circuit element case, 130, second circuit component box, the 140, first cable termination
Case, the 151, first gas chamber unit, the 152, second gas chamber unit, 153, third gas chamber unit, the 154, the 4th gas chamber unit, 1020,
Cross box, the 1021, the 9th gas chamber unit, the 210, second bus-bar chamber, 220, tertiary circuit component box, the 230, the 4th circuit element
Case, the 240, second cable terminal box, the 251, the 5th gas chamber unit, the 252, the 6th gas chamber unit, the 253, the 7th gas chamber unit, 254,
8th gas chamber unit, 300, stuffiness disc insulator, the 411, first mother gas chamber, the 412, second mother gas chamber, 413, third
Mother gas chamber, the 414, the 4th mother gas chamber, the 415, the 5th mother gas chamber.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing:
It should be noted that it can be directly in another element when alleged element is with another element " fixation " in text
Above or there may also be elements placed in the middle.When an element is considered as with another element " connection ", it be can be directly
It is connected to another element in succession or may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element
When "upper", intermediary element is not present.Term as used herein "vertical", "horizontal", "left" and "right" and similar table
It states for illustrative purposes only, is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
It should be noted that each appended drawing reference respectively indicates in Fig. 1:
The first bus of BUSI-, the second bus of BUSII-, TPS- three-station, DS- disconnecting switch, GCB- breaker,
CT- current transformer, ES- earthing switch, VT- voltage transformer, CSE- cable terminal box.
As shown in Figure 1, a kind of double bus scheme GIS device, including outgoing line unit, the first bus, the second bus, mother
Line, the first gas chamber group, the second gas chamber group, the 9th gas chamber unit 1021, mother gas chamber；Outgoing line unit includes the first outlet and second
Outlet further includes the conversion line for connecting the first outlet and the second outlet, and conversion line, which is equipped with, is used for opening and closing of conversion
Switch, outgoing line unit are equipped with multiple；First bus includes the first linkage section, and one end of the first outlet is electrically connected with the first linkage section
It connects, the first outlet is at least provided with the first three-station, the first circuit element and second circuit element；Second bus includes second
Linkage section, one end of the second outlet are electrically connected with the second linkage section, and the second outlet is at least provided with the second three-station, third electricity
Circuit component and the 4th circuit element；First bus further includes the first mother section, and the second bus further includes the second mother section, mother line
One end be electrically connected with the first mother section, the other end of mother line is electrically connected with the second mother section, and mother line is at least provided with third
Three-station, the 4th three-station and the 5th circuit element；It is equipped with high pressure sulfur hexafluoride gas in first gas chamber group, first
Gas chamber group includes the first gas chamber unit 151, the second gas chamber unit 152, third gas chamber unit 153 and the 4th gas chamber unit 154, the
Two gas chamber units 152 are located between the first gas chamber unit 151 and third gas chamber unit 153, and third gas chamber unit 153 is located at second
Between gas chamber unit 152 and the 4th gas chamber unit 154；High pressure sulfur hexafluoride gas, the second gas chamber group are equipped in second gas chamber group
Including the 5th gas chamber unit 251, the 6th gas chamber unit 252, the 7th gas chamber unit 253 and the 8th gas chamber unit 254, the 6th gas chamber
Unit 252 is located between the 5th gas chamber unit 251 and the 7th gas chamber unit 253, and the 7th gas chamber unit 253 is located at the 6th gas chamber list
Between member 252 and the 8th gas chamber unit 254；9th gas chamber unit 1021 is located at the second gas chamber unit 152 and the 6th gas chamber unit
Between 252；The first gas chamber unit 151, the second gas chamber unit 152, third gas chamber unit 153 and the 4th gas chamber are passed through in first outlet
Unit 154 carries out cabling setting, and the first linkage section and the first three-station are located in the first gas chamber unit 151, the first circuit
Element is located in third gas chamber unit 153, and second circuit element is located in the 4th gas chamber unit 154, and the second outlet passes through the 5th
Gas chamber unit 251, the 6th gas chamber unit 252, the 7th gas chamber unit 253 and the progress cabling setting of the 8th gas chamber unit 254, second
Linkage section and the second three-station are located in the 5th gas chamber unit 251, and tertiary circuit element is located at the 7th gas chamber unit 253
Interior, the 4th circuit element is located in the 8th gas chamber unit 254, and conversion line passes through the second gas chamber unit 152, the 9th gas chamber unit
1021 and the 6th gas chamber unit 252 carry out cabling setting, the link position of conversion line and the first outlet is located at the second gas chamber list
In member 152, the link position of conversion line and the second outlet is located in the 6th gas chamber unit 252, and change-over switch is located at the 9th gas
In chamber unit 1021；High pressure sulfur hexafluoride gas is equipped in mother gas chamber, mother gas chamber includes the first mother gas chamber 411, second
Mother gas chamber 412, third mother gas chamber 413, the 4th mother gas chamber 414 and the 5th mother gas chamber 415, the second mother gas chamber 412
It is located between the first mother gas chamber 411 and third mother gas chamber 413, the 4th mother gas chamber 414 is located at 413 He of third mother gas chamber
Between 5th mother gas chamber 415；Mother line passes through the first mother gas chamber 411, the second mother gas chamber 412, third mother gas chamber
413, the 4th mother gas chamber 414 and the 5th mother gas chamber 415 carry out cabling setting, and the first mother section and third three-station are set
In the first mother gas chamber 411, the second mother section and the 4th three-station are located in the 5th mother gas chamber 415, the 5th circuit
Element is located in third mother gas chamber 413.
By the setting of the 9th gas chamber unit 1021 and change-over switch, when to the first circuit element or tertiary circuit element or
When change-over switch carries out Disintegration overhaul, stop together without double-bus；When carrying out pressure test to the first bus or the second bus, nothing
Need double-bus is same to stop；When to bus isolating switch namely the first three-station or the second three-station or the three or three station
When switch or the 4th three-station carry out pressure test, stop without double-bus is same, meanwhile, when the first bus has a power failure, close
It closes change-over switch to run to snap on the second bus the first outlet by " bus " operation, guarantees the normal of the first outlet
Power supply, the second bus can be operated similarly when having a power failure, to further increase power supply reliability, avoid generation system operation risk, condition
And even if double-bus with stopping, can also be connected to the first outlet and the second outlet by change-over switch to form temporary power channel,
It is further to improve power supply reliability.
The inlet-outlet line quantity that double-bus offer is increased by the setting of multiple outgoing line units, improves power supply efficiency, leads to
The setting for crossing mother line realizes mutual contact between the first bus and the second bus, increases power supply reliability.
Because sulfur hexafluoride has good electrical insulation properties and excellent arc extinction performance, it is ensured that the height of gas indoor equipment
Press insulation requirements.
Further, the first circuit element, tertiary circuit element and the 5th circuit element include at least a breaker,
Second circuit element and the 4th circuit element include at least a three-station, to realize the first circuit element, respectively
Three-circuit element, the 5th circuit element, the disconnection of second circuit element and the 4th circuit element are out of service and closure starts to transport
Row.
Further, more gas chamber units and circuit element can be according to circumstances arranged in the first outlet and the second outlet
To meet actual power transmission demand, the first outlet and the second outlet can also be using other connections in addition to cable termination
Mode, to meet actual power transmission demand.
Specifically, as shown in Figure 1, the first circuit element, tertiary circuit element and the 5th circuit element include one disconnected
Road device and a current transformer；Second circuit element and the 4th circuit element include a three-station and a ground connection
Switch, the first outlet, the second outlet are also equipped with voltage transformer.
On the basis of any of the above-described a embodiment, as shown in Figures 2 to 5, when GIS device for 110kV, further include
First wire box, the second wire box, cross box 1020, the first bus-bar chamber 110 and the second bus-bar chamber 210, the first wire box include
First circuit element case 120, second circuit component box 130 and the first cable terminal box 140, the second wire box include tertiary circuit
Component box 220, the 4th circuit element case 230 and the second cable terminal box 240, one end of second circuit component box 130 and first
Circuit element case 120 is detachably connected, and the other end of second circuit component box 130 detachably connects with the first cable terminal box 140
Connect, one end and the tertiary circuit component box 220 of the 4th circuit element case 230 are detachably connected, the 4th circuit element case 230 it is another
One end is detachably connected with the second cable terminal box 240, the first cable terminal box 140 be set to the first wire box one end, first
The other end of wire box is detachably connected with the first bus-bar chamber 110, and the second cable terminal box 240 is set to the one of the second wire box
End, the other end of the second wire box are detachably connected with the second bus-bar chamber 210, and one end of cross box 1020 and the first wire box can
Dismantling connection, the other end of cross box 1020 are detachably connected with the second wire box, and the first bus is set to the first bus-bar chamber 110,
Second bus is set to the second bus-bar chamber 210, and the first gas chamber unit 151 is set to the connection of the first wire box and the first bus-bar chamber 110
Position, third gas chamber unit 153 are set to the first circuit element case 120, and the 4th gas chamber unit 154 is set to second circuit component box
130, the 5th gas chamber unit 251 is set to the link position of the second wire box and the second bus-bar chamber 210, and the 7th gas chamber unit 253 is set
In tertiary circuit component box 220, the 8th gas chamber unit 254 is set to the 4th circuit element case 230, the second gas chamber unit the 152, the 6th
Gas chamber unit 252 and the 9th gas chamber unit 1021 are set to cross box 1020.Setting in this way, so that outgoing line unit, first
Bus, the second bus and conversion line are set in corresponding cabinet.
Further, the first cable terminal box 140 and the second cable terminal box 240 can also be aerial condutor terminal.
On the basis of any one above-mentioned embodiment, as shown in Figures 2 to 5, the first wire box, turns the second wire box
It changes case 1020, the first bus-bar chamber 110 and the second bus-bar chamber 210 and is equipped with stuffiness disc insulator 300 for partitioned air chambers.
Corresponding cabinet is divided into different gas chamber units using stuffiness disc insulator 300, fills that set high pressure lithium to meet
Sulphur insulating gas meets the functional requirement of high-voltage isulation.
The repair method for the double bus scheme GIS device that the present invention also provides a kind of as described in any of the above-described embodiment,
The following steps are included:
High pressure sulfur hexafluoride gas in third gas chamber unit 153 is depressured, until in third gas chamber unit 153
Pressure is safety detection pressure；
High pressure sulfur hexafluoride gas pressure in second gas chamber unit 152 is reduced at least half of its original pressure, it will
High pressure sulfur hexafluoride gas pressure in 4th gas chamber unit 154 reduces at least half of its original pressure；
The first three-station in the first gas chamber unit 151 is disconnected, the two or three work in the 5th gas chamber unit 251 is disconnected
Bit switch；
Start to carry out Disintegration overhaul to the first circuit element.
The step is directed to the first circuit element gas chamber Disintegration overhaul, at this point, due to the first gas chamber unit 151 and the 5th gas chamber
Unit 251 can still maintain normal air chamber pressure, thus the first bus and the second bus are not necessarily to have a power failure.Therefore, the repair method
It needs double-bus with the problem of stopping when avoiding the first circuit element gas chamber Disintegration overhaul, improves power supply reliability.
When carrying out gas chamber Disintegration overhaul to the first circuit element, processing need to be bled off pressure to the third gas chamber unit 153 where it
And until the air pressure in third gas chamber unit 153 is safety detection pressure, the second gas chamber unit 152 and the 4th gas chamber unit 154
It is adjacent with third gas chamber unit 153, since safety detection pressure is down in the air pressure in third gas chamber unit 153, to avoid phase
The excessive initiation safety accident of pressure difference between adjacent gas chamber, will at least it be former to the second gas chamber unit 152 and the 4th gas chamber unit 154
The one of air pressure is semi-processed, at this point, since the first gas chamber unit 151 and the 5th gas chamber unit 251 can still maintain normal air chamber pressure,
Thus the first bus and the second bus are not necessarily to have a power failure.Therefore, which avoids the first circuit element gas chamber solution physical examination
It needs double-bus with the problem of stopping when repairing, improves power supply reliability.
Similarly, when carrying out gas chamber Disintegration overhaul to tertiary circuit element, similarly avoidable double-bus is mentioned with the problem of stopping
High power supply reliability.
Specifically, as shown in Figure 1, when carrying out gas chamber Disintegration overhaul to the breaker GCB in the first circuit element:
Firstly, the high pressure sulfur hexafluoride gas in third gas chamber unit 153 is depressured, until third gas chamber unit
Pressure in 153 is safety detection pressure；
It then, will by at least half of sulfur hexafluoride gas pressure reduction its original pressure in the second gas chamber unit 152
High pressure sulfur hexafluoride gas pressure in 4th gas chamber unit 154 reduces at least half of its original pressure；
Then, the first three-station in the first gas chamber unit 151 is disconnected, the in the 5th gas chamber unit 251 is disconnected
Two three-stations；
Finally, starting to carry out gas chamber Disintegration overhaul to the breaker GCB of the first circuit element.
Similarly, gas chamber Disintegration overhaul can be carried out to the breaker GCB in tertiary circuit element.
It is operated by this kind, gas chamber Disintegration overhaul or right either is carried out to the breaker GCB in the first circuit element
Breaker GCB in tertiary circuit element carries out gas chamber Disintegration overhaul, not will lead to double-bus with the problem of stopping, guarantees
Power supply reliability.
Other circuit elements after on to the first outlet along outlet direction, the first circuit element carry out gas chamber disintegration
When maintenance, since centre has been spaced multiple gas chambers, the normal operation of the first bus is had no effect on；Similarly, when to the second outlet
On along outlet direction, other circuit elements after tertiary circuit element carry out gas chamber Disintegration overhaul when, nor affect on second
The normal operation of bus.Similarly, other each outgoing line units on the first bus or the second bus be can be applied to.
It should be noted that the safety detection pressure is generally normal pressure.
The repair method for the double bus scheme GIS device that the present invention also provides a kind of as described in any of the above-described embodiment,
The following steps are included:
High pressure sulfur hexafluoride gas in 9th gas chamber unit 1021 is depressured, until in the 9th gas chamber unit 1021
Pressure be safety detection pressure；
High pressure sulfur hexafluoride gas pressure in second gas chamber unit 152 is reduced at least half of its original pressure, it will
High pressure sulfur hexafluoride gas pressure in 6th gas chamber unit 252 reduces at least half of its original pressure；
The first three-station in the first gas chamber unit 151 is disconnected, the two or three work in the 5th gas chamber unit 251 is disconnected
Bit switch；
Start to carry out Disintegration overhaul to change-over switch.
The step is directed to change-over switch gas chamber Disintegration overhaul, at this point, due to the first gas chamber unit 151 and the 5th gas chamber unit
251 can still maintain normal air chamber pressure, thus the first bus and the second bus are not necessarily to have a power failure.Therefore, which avoids
It needs double-bus with the problem of stopping when the first circuit element gas chamber Disintegration overhaul, improves power supply reliability.
The pressure test side for the double bus scheme GIS device that the present invention also provides a kind of as described in any of the above-described embodiment
Method, when normal operation, change-over switch is disconnected, the first three-station, the second three-station, third three-station, the 4th
Three-station, the first circuit element, second circuit element, tertiary circuit element, the 4th circuit element and the 5th circuit element
Closure operation executes step (i) when carrying out pressure test to the first bus or the first three-station；When to the second mother
Line or the second three-station carry out executing step (ii) when pressure test；When to the progress pressure test of third three-station
When, it executes step (iii)；When carrying out pressure test to the 4th three-station, execute step (iv)；
(i), the second three-station, tertiary circuit element, third three-station and the 5th circuit element are at least disconnected,
And make remaining each outlet of the first bus between the first bus at least provided with two fractures, to the first bus or the one or three
Position switch carries out pressure test；
(ii), the first three-station, the first circuit element, the 4th three-station and the 5th circuit elements are at least disconnected
Part, and remaining each outlet of the second bus is made to be equipped at least two fractures between the second bus, to the second bus or the
Two three-stations carry out pressure test；
(iii), the second three-station, tertiary circuit element, the 4th three-station, the 5th circuit elements are at least disconnected
Part, and remaining each outlet of the first bus is made to be equipped at least two fractures between the first bus, the three or three station is opened
Put row pressure test into；
(iv), the first three-station, the first circuit element, third three-station, the 5th circuit element are at least disconnected,
And make remaining each outlet of the second bus between the second bus be equipped at least two fractures, to the 4th three-station into
Row pressure test.
Pressure test is carried out using this method, can avoid double-bus with the problem of stopping, and guarantees the first mother when pressure test
In line or the second bus wherein one can operate normally, to guarantee the power supply along bus, simultaneously as change-over switch
Setting, can also be further ensured that more route normal power supplies, to improve power supply reliability, reduce system operation risk.
When carrying out pressure test for bus or bus isolating switch, to avoid single break in test voltage and operation electricity
Puncture at 180 ° of reverse phase of pressure, run unit generally requires pressure test position away from normal operation at least two fracture of element.It is existing
GIS device when carrying out pressure test for bus or bus isolating switch, all disengaging thread elements of double bus scheme are both needed to
Have a power failure.The present invention avoids double-bus and stops together, improve power supply reliability by the setting of change-over switch, reduces system fortune
Row risk.
It should be noted that carried out when carrying out pressure test to the first bus by the first outlet pressurization, thus first is female
The first three-station pressure test operation in line pressure test, the first outlet is identical；Similarly, when the second bus pressure test
It is pressurizeed and is carried out by the second outlet, therefore the second three-station pressure test behaviour in the second bus pressure test, the second outlet
Make identical；To third three-station carry out pressure test when, by the first outlet pressurize carry out, to the 4th three-station into
When row pressure test, is pressurizeed and carried out by the second outlet.Certainly, the first outlet and the second outlet are not the limit to pressurized line
System can also use on other outgoing line units, resistance to carry out to the corresponding outlet pressurization that the first bus or the second bus connect
Pressure test.
As shown in Figure 1, change-over switch is disconnecting switch DS, the first outlet and the second outlet can be disconnected by change-over switch
Or the connection relationship of closure the first bus of adjustment or the second bus, opening and closing of situation is respectively:
When first bus and the second bus operate normally, change-over switch is disconnected.First three-station, the two or three simultaneously
Position switch, third three-station, the 4th three-station, the first circuit element, second circuit element, tertiary circuit member
Part, the 4th circuit element and the 5th circuit element are closed.The first outlet is connect with the first bus at this time, the second outlet and second
Bus connection；
When first bus-bar fault and the second bus operate normally, change-over switch closure.First three-station, third simultaneously
Three-station, the 4th three-station and the 5th circuit element disconnect, the second three-station, the first circuit element,
Two circuit elements, tertiary circuit element and the 4th circuit element are closed.First outlet at this time and the second outlet are female with second
Line connection；
When second bus-bar fault and the first bus operate normally, change-over switch closure.Second three-station, third simultaneously
Three-station, the 4th three-station and the 5th circuit element disconnect, the first three-station, the first circuit element,
Two circuit elements, tertiary circuit element and the 4th circuit element are closed.First outlet at this time and the second outlet are female with first
Line connection.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of double bus scheme GIS device characterized by comprising
Outgoing line unit, the first bus, the second bus, mother line, the first gas chamber group, the second gas chamber group, the 9th gas chamber unit, mother
Gas chamber；
The outgoing line unit includes the first outlet and the second outlet, further includes connecting first outlet and second outlet
Conversion line, the conversion line, which is equipped with, is used for opening and closing of change-over switch, and the outgoing line unit is equipped with multiple；
First bus includes the first linkage section, and one end of first outlet is electrically connected with first linkage section, described
First outlet is at least provided with the first three-station, the first circuit element and second circuit element；
Second bus includes the second linkage section, and one end of second outlet is electrically connected with second linkage section, described
Second outlet is at least provided with the second three-station, tertiary circuit element and the 4th circuit element；
First bus further includes the first mother section, and second bus further includes the second mother section, and the one of the mother line
End is electrically connected with the first mother section, and the other end of the mother line is electrically connected with the second mother section, the mother line
At least provided with third three-station, the 4th three-station and the 5th circuit element；
High pressure sulfur hexafluoride gas is equipped in the first gas chamber group, the first gas chamber group includes the first gas chamber unit, second
Gas chamber unit, third gas chamber unit and the 4th gas chamber unit, the second gas chamber unit are located at the first gas chamber unit and institute
State between third gas chamber unit, the third gas chamber unit be located at the second gas chamber unit and the 4th gas chamber unit it
Between；
High pressure sulfur hexafluoride gas is equipped in the second gas chamber group, the second gas chamber group includes the 5th gas chamber unit, the 6th
Gas chamber unit, the 7th gas chamber unit and the 8th gas chamber unit, the 6th gas chamber unit are located at the 5th gas chamber unit and institute
State between the 7th gas chamber unit, the 7th gas chamber unit be located at the 6th gas chamber unit and the 8th gas chamber unit it
Between；
The 9th gas chamber unit is located between the second gas chamber unit and the 6th gas chamber unit；
First outlet is by the first gas chamber unit, the second gas chamber unit, the third gas chamber unit and described
4th gas chamber unit carries out cabling setting, and first linkage section and first three-station are located at the first gas chamber list
In member, first circuit element is located in the third gas chamber unit, and the second circuit element is located at the 4th gas chamber
In unit, the 5th gas chamber unit, the 6th gas chamber unit, the 7th gas chamber unit and institute are passed through in second outlet
It states the 8th gas chamber unit and carries out cabling setting, second linkage section and second three-station are located at the 5th gas chamber
In unit, the tertiary circuit element is located in the 7th gas chamber unit, and the 4th circuit element is located at the 8th gas
In chamber unit, the conversion line passes through the second gas chamber unit, the 9th gas chamber unit and the 6th gas chamber unit
Cabling setting is carried out, the conversion line and the link position of first outlet are located in the second gas chamber unit, described
The link position of conversion line and second outlet is located in the 6th gas chamber unit, and the change-over switch is located at described the
In nine gas chamber units；
High pressure sulfur hexafluoride gas is equipped in the mother gas chamber, the mother gas chamber includes the first mother gas chamber, the second mother
Gas chamber, third mother gas chamber, the 4th mother gas chamber and the 5th mother gas chamber, the second mother gas chamber are located at first mother
Between gas chamber and the third mother gas chamber, the 4th mother gas chamber is located at the third mother gas chamber and the 5th mother
Between gas chamber；
The mother line passes through the first mother gas chamber, the second mother gas chamber, the third mother gas chamber, the described 4th
Mother gas chamber and the 5th mother gas chamber carry out cabling setting, and the first mother section and the third three-station are located at
In the first mother gas chamber, the second mother section and the 4th three-station are located in the 5th mother gas chamber,
5th circuit element is located in the third mother gas chamber；
First circuit element, the tertiary circuit element and the 5th circuit element include a breaker and one
Current transformer, the second circuit element and the 4th circuit element include that a three-station and a ground connection are opened
It closes；First outlet and second outlet are also equipped with voltage transformer.
2. double bus scheme GIS device according to claim 1, which is characterized in that further include the first wire box, second go out
Line case, cross box, the first bus-bar chamber and the second bus-bar chamber, first wire box include the first circuit element case, second circuit
Component box and the first cable terminal box, second wire box include tertiary circuit component box, the 4th circuit element case and second
Cable terminal box, one end of the second circuit component box are detachably connected with the first circuit element case, second electricity
The other end of circuit component case is detachably connected with first cable terminal box, one end of the 4th circuit element case with it is described
Tertiary circuit component box is detachably connected, and the other end and second cable terminal box of the 4th circuit element case are detachable
Connection, first cable terminal box be set to first wire box one end, the other end of first wire box with it is described
First bus-bar chamber is detachably connected, and second cable terminal box is set to one end of second wire box, second outlet
The other end of case is detachably connected with second bus-bar chamber, and one end of the cross box detachably connects with first wire box
It connects, the other end of the cross box is detachably connected with second wire box, and first bus is set to first bus
Case, second bus are set to second bus-bar chamber, and the first gas chamber unit is set to first wire box and described the
The link position of one bus-bar chamber, the third gas chamber unit are set to the first circuit element case, and the 4th gas chamber unit is set
In the second circuit component box, the 5th gas chamber unit is set to the connection of second wire box and second bus-bar chamber
Position, the 7th gas chamber unit are set to the tertiary circuit component box, and the 8th gas chamber unit is set to the 4th circuit
Component box, the second gas chamber unit, the 6th gas chamber unit and the 9th gas chamber unit are set to the cross box.
3. double bus scheme GIS device according to claim 2, which is characterized in that first wire box, described second
Wire box, the cross box, first bus-bar chamber and second bus-bar chamber are equipped with the stuffiness basin for partitioned air chambers
Formula insulator.
4. a kind of repair method of double bus scheme GIS device as described in any one of claims 1-3, which is characterized in that packet
Include following steps:
High pressure sulfur hexafluoride gas in third gas chamber unit is depressured, until the pressure in the third gas chamber unit is
Safety detection pressure；
At least half that high pressure sulfur hexafluoride gas pressure in second gas chamber unit is reduced to its original pressure, by the 4th gas chamber
High pressure sulfur hexafluoride gas pressure in unit reduces at least half of its original pressure；
First three-station in the first gas chamber unit is disconnected, the two or three in the 5th gas chamber unit is disconnected
Position switch；
Start to carry out Disintegration overhaul to the first circuit element.
5. a kind of repair method of double bus scheme GIS device as described in any one of claims 1-3, which is characterized in that packet
Include following steps:
High pressure sulfur hexafluoride gas in 9th gas chamber unit is depressured, until the pressure in the 9th gas chamber unit is
Safety detection pressure；
At least half that high pressure sulfur hexafluoride gas pressure in second gas chamber unit is reduced to its original pressure, by the 6th gas chamber
High pressure sulfur hexafluoride gas pressure in unit reduces at least half of its original pressure；
First three-station in the first gas chamber unit is disconnected, the two or three in the 5th gas chamber unit is disconnected
Position switch；
Start to carry out Disintegration overhaul to change-over switch.
6. a kind of pressure resistant test method of double bus scheme GIS device as described in any one of claims 1-3, feature exist
When, normal operation, the change-over switch is disconnected, first three-station, second three-station, the third
Three-station, the 4th three-station, first circuit element, the second circuit element, the tertiary circuit
Element, the 4th circuit element and the 5th circuit element are closed operation, when to first bus or described first
When three-station carries out pressure test, execute step (i)；When to second bus or second three-station progress
Step (ii) is executed when pressure test；When carrying out pressure test to the third three-station, execute step (iii)；When
When carrying out pressure test to the 4th three-station, execute step (iv)；
(i), second three-station, the tertiary circuit element, the third three-station and described are at least disconnected
5th circuit element, and keep remaining each outlet of first bus disconnected at least provided with two between first bus
Mouthful, pressure test is carried out to first bus or first three-station；
(ii), first three-station, first circuit element, the 4th three-station and described are at least disconnected
5th circuit element, and it is disconnected so that remaining each outlet of second bus is equipped at least two between second bus
Mouthful, pressure test is carried out to second bus or second three-station；
(iii), second three-station, the tertiary circuit element, the 4th three-station, described is at least disconnected
5th circuit element, and it is disconnected so that remaining each outlet of first bus is equipped at least two between first bus
Mouthful, pressure test is carried out to the third three-station；
(iv), first three-station, first circuit element, the third three-station, described is at least disconnected
5th circuit element, and it is disconnected so that remaining each outlet of second bus is equipped at least two between second bus
Mouthful, pressure test is carried out to the 4th three-station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710860883.7A CN107482523B (en) | 2017-09-21 | 2017-09-21 | Double bus scheme GIS device and its repair method, pressure resistant test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860883.7A CN107482523B (en) | 2017-09-21 | 2017-09-21 | Double bus scheme GIS device and its repair method, pressure resistant test method |
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| CN107482523B true CN107482523B (en) | 2019-11-22 |
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| CN109347084B (en) * | 2018-12-05 | 2024-04-23 | 贵州电网有限责任公司 | Direct-current ring main unit circuit structure and use method |
| CN111239601B (en) * | 2020-03-05 | 2022-01-25 | 湖北省电力勘测设计院有限公司 | Method for detecting double-break bus isolating switch in 220 KV power transformation combined electrical equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368081A (en) * | 2013-07-10 | 2013-10-23 | 浙江省电力设计院 | Main electrical connection of double-bus disconnecting link section |
| CN204067884U (en) * | 2014-06-20 | 2014-12-31 | 国家电网公司 | A kind of distribution line based on double bus scheme |
| CN206364435U (en) * | 2016-11-17 | 2017-07-28 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | GIS buses standby spacing does not have a power failure enlarging functional module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57180301A (en) * | 1981-04-30 | 1982-11-06 | Hitachi Ltd | Gas insulated switching device |
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2017
- 2017-09-21 CN CN201710860883.7A patent/CN107482523B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368081A (en) * | 2013-07-10 | 2013-10-23 | 浙江省电力设计院 | Main electrical connection of double-bus disconnecting link section |
| CN204067884U (en) * | 2014-06-20 | 2014-12-31 | 国家电网公司 | A kind of distribution line based on double bus scheme |
| CN206364435U (en) * | 2016-11-17 | 2017-07-28 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | GIS buses standby spacing does not have a power failure enlarging functional module |
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