CN110137021A - Voltage transformer system including transformer tractor - Google Patents
Voltage transformer system including transformer tractor Download PDFInfo
- Publication number
- CN110137021A CN110137021A CN201810133898.8A CN201810133898A CN110137021A CN 110137021 A CN110137021 A CN 110137021A CN 201810133898 A CN201810133898 A CN 201810133898A CN 110137021 A CN110137021 A CN 110137021A
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- Prior art keywords
- transformer
- shell
- tractor
- grounding arm
- grounding
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- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 239000002775 capsule Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 16
- 230000008859 change Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/26—Arrangements of fuses, resistors, voltage arresters or the like
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Provide a kind of transformer tractor of for transformer system.Transformer tractor limits first direction, second direction and third direction, three directions and is orthogonal to each other.Transformer tractor includes shell and earthing switch mechanism.Shell is arranged to receive the first transformer, and the first transformer is in the first orientation relative to third direction, and the second laterally adjacent transformer is in the second orientation relative to third direction, wherein the second orientation is opposite with the first orientation.Earthing switch mechanism is attached to shell, it can switch between ungrounded condition and grounding requirement, and including pairs of grounding arm and the earth brace extended between pairs of grounding arm, grounding arm is each coupled to the respective inner part of shell and can rotate between ungrounded condition and grounding requirement.
Description
Technical field
The field of the disclosure relates generally to voltage transformer system, and relates more specifically to transformer tractor
(transformer truck) is designed to improve the safety of the transformer tractor in voltage transformer system and electrical capsule
The packaging efficiency of interior electric member.
Background technique
Transformer is the common electrical component for distribution, transmission and control system, such as to change input voltage
At desired output voltage.Transformer can also be used to for input current to be transformed into desired output electric current.Known distribution, transmission
It may include electrical capsule with control system, there is the switching device including transformer tractor, transformer tractor is configured to
It accommodates and transmits transformer between transformer and multiple positions (e.g., including operating position and maintenance position) in capsule.Extremely
Few some known electrical capsules allow operator that transformer tractor is moved to maintenance position, or make transformer tractor "
Frame goes out (rack out) ", wherein the door of electrical capsule is opened and transformer is in energized state, peace potentially is brought to operator
Full blast danger.Other known transformer tractor is incorporated to ground connection paillon to make transformer when transformer tractor is in maintenance position
Power-off, but ground connection paillon may become to deform after this multiple use and make the transformer dead ground in transformer tractor
Aspect becomes inefficient.In addition, at least some known transformer tractors are configured to preventing to make each transformer tractor
It is maintained at the compact switching device size requirement of Institute of Electrical and Electronics Engineers (IEEE) simultaneously with more than two transformers
Transformer is accommodated in interior arrangement.
Summary of the invention
In one aspect, a kind of transformer tractor of for transformer system is provided.Transformer tractor limits the
One direction, second direction and third direction, three directions are orthogonal to each other.Transformer tractor includes shell and earthing switch machine
Structure.Shell is arranged to receive the first transformer, and the first transformer is in the first orientation relative to third direction, and laterally adjacent
Second transformer is in the second orientation relative to third direction, wherein the second orientation is opposite with the first orientation.Earthing switch mechanism
It is attached to shell and can switch between ungrounded condition and grounding requirement.Earthing switch mechanism include pairs of grounding arm and
The earth brace extended between pairs of grounding arm, grounding arm are each coupled to the respective inner part of shell and can be in ungrounded conditions
It is rotated between grounding requirement.
On the other hand, a kind of voltage transformer system for electrical capsule is provided.Electrical capsule limits first direction, the
Two directions and third direction, three directions are orthogonal to each other.Voltage transformer system includes transformer tractor, can be connected in extremely
Between the load-side power line of few electric member connection and the line side power line coupled at least one electric power source.
Transformer tractor includes shell, multiple transformers and earthing switch mechanism.Multiple transformer arrangements are plurality of in shell
The first transformer in transformer has the first orientation relative to third direction, and laterally adjacent in plurality of transformer
Second transformer has the second orientation relative to third direction, wherein the second orientation is opposite with the first orientation.Earthing switch mechanism
It is attached to shell and can switch between ungrounded condition and grounding requirement.Earthing switch mechanism include pairs of grounding arm and
The earth brace extended between pairs of grounding arm, grounding arm are each coupled to the respective inner part of shell and can be in ungrounded conditions
It is rotated between grounding requirement.
It yet still another aspect, providing a kind of method for powering off transformer.This method includes making transformer tractor along support
Frame is moved to disengaging configuration from bonding station.Transformer tractor includes shell and earthing switch mechanism.Shell stores multiple changes
Depressor comprising there is the first transformer of the first orientation and opposite relative to the third direction limited by transformer tractor
There is the second laterally adjacent transformer of the second orientation in third direction, wherein the second orientation is opposite with the first orientation.Ground connection
Switching mechanism is attached to shell and can switch between ungrounded condition and grounding requirement.Earthing switch mechanism includes being grounded in pairs
Arm and the earth brace extended between pairs of grounding arm, grounding arm are each coupled to the respective inner part of shell and can be non-
It is rotated between grounding requirement and grounding requirement.This method further includes that earthing switch mechanism is switched to earthing strip from ungrounded condition
Part is to cause earth brace to contact the earthing contact on multiple transformers.
Detailed description of the invention
When reading described in detail below referring to attached drawing, these and other features, aspects and advantages of present disclosure will
It becomes better understood, similar label indicates attached drawing similar part everywhere in attached drawing, in the accompanying drawings:
Fig. 1 is the perspective and partial sectional view of the exemplary embodiment of electrical capsule；
Fig. 2 is the schematic side elevational in combination with the exemplary embodiment for the voltage transformer system that electrical capsule uses shown in Fig. 1
Figure, shows exemplary transformer's tractor in bonding station and the exemplary ground switching on and shutting down in ungrounded condition
Structure；
Fig. 3 is the front view of transformer tractor shown in Fig. 2, shows the exemplary arrangement of exemplary transformer；
Fig. 4 is the schematic side elevation of the exemplary fuse component used in combination with transformer shown in Fig. 3；
Fig. 5 is the schematic side elevation of voltage transformer system shown in Fig. 2, shows the transformer tractor in disengaging configuration
With the earthing switch mechanism for being in ungrounded condition；
Fig. 6 is the partial side view of earthing switch mechanism shown in Fig. 5；
Fig. 7 is the schematic side elevation of voltage transformer system shown in Fig. 2, shows the transformer tractor in disengaging configuration
With the earthing switch mechanism for being in grounding requirement；
Fig. 8 is the partial side view of earthing switch mechanism shown in fig. 7；And
Fig. 9 is the flow chart for the illustrative methods for making voltage transformer system disconnect and be grounded.
Unless otherwise noted, otherwise attached drawing provided herein is intended to show the feature of embodiment of the disclosure.These features
It is recognized as being suitable for the multiple systems including one or more other embodiments of the present disclosure.Therefore, attached drawing is not intended to include this field
Those of ordinary skill it is known implement embodiment disclosed herein needed for all general characteristics.
Parts List
10 coordinate systems
100 electrical capsules
102 transformer compartments
104 breaker compartments
105 load-side power lines
106 transformer compartment doors
107 line side power lines
108 voltage transformer systems
110 transformers
111 exterior panels
112 support frame members
114 external environments
116 electric members
118 inner panels
120 apertures
200 transformer tractors
202 bonding stations
204 fuse assemblies
205 load-side power lines
206 hinges, compartment door
207 line side power lines
208 open positions
210 closed positions
212 shells
214 earthed systems
216 earthing switch mechanisms
217 shells, fuse
218 fuses
220 pin contacts
222 first ends, fuse assembly
224 earthing switch contacts
226 second ends
228 inner widths, transformer tractor
230 disengaging configurations, transformer tractor
232 ungrounded conditions, earthing switch mechanism
234 grounding requirements, earthing switch mechanism
236 ground cables
238 earthing contacts
240 brackets
242 grounding arms, in pairs
244 earth braces
246 ground springs
248 first grounding arms
250 rotary shafts
252 first walls, it is internal
254 second grounding arms
256 second walls, it is internal
258 distal parts
260 earth brace notches
262 notch length
264 longitudinal axis, rotating arm
266 earth brace axis
268 direction of rotation
270 first roller channels
272 second roller channels
274 first rollers
276 second parts
278 second rollers
280 push plates
282 first earth brace channels
284 second earth brace channels.
Specific embodiment
, will be referring to several terms in following description and claim, they should be defined with following meaning.
Singular " one ", " one kind " and " being somebody's turn to do " include plural reference, unless context clearly dictates otherwise.
" optional " or " optionally " mean that the event then described or situation can occur or can not occur, and description includes
Event there is a situation where and its not there is a situation where.
It allows do not leading to it as this paper can be used for modifying in the approximating language that description and claims use everywhere
Any quantity expression changed in the case where the variation for the basic function being related to.Therefore, by it is one or more such as " about ", "
The value that substantially term of " and " probably " is modified is not limited to specified exact value.In at least some cases, approximating language can correspond to
In the precision of the utensil for measured value.Here everywhere with description and claims, scope limitation can be combined and/or be exchanged,
This range is identified and all subranges including being included in, unless context or language indicates otherwise.
This document describes the exemplary embodiments for the voltage transformer system for including transformer tractor.Transformer tractor is electricity
A kind of electrical switchgear in sealing gland shell, be designed to operation bonding station in electrical capsule and maintenance disengaging configuration it
Between transport transformer.Transformer tractor as described herein generally includes shell and earthing switch.Shell is configured to receive more
A transformer, they are arranged so that the first transformer in multiple transformers has the first orientation relative to third direction, and
The second laterally adjacent transformer in multiple transformers has the second orientation relative to third direction, wherein the second orientation and the
One orientation is opposite.Earthing switch mechanism has ungrounded condition and grounding requirement, and interior section including being connected to shell
Pairs of grounding arm and the earth brace extended between pairs of grounding arm, pairs of grounding arm are configured to along direction of rotation ungrounded
It is rotated between condition and grounding requirement.In the exemplary embodiment, earthing switch mechanism is configured at grounding arm and earth brace
Transformer is powered off when the door of grounding requirement and voltage transformer system compartment is opened.In one embodiment, transformer tractor
Including the bracket extended in a first direction, and transformer tractor is configured to put down between bonding station and disengaging configuration along bracket
It moves, while voltage transformer system compartment is closed.Voltage transformer system by using the intracorporal transformer of shell vertical interlaced arrangement and just
It is utilized in the useful space in electrical capsule, and by being convenient for making the transformer in electrical capsule to power off without making operator's exposure
It is convenient for improving the safety of electrical capsule in the transformer of energization.
Fig. 1 is the perspective and partial sectional view of the exemplary embodiment of electrical capsule (for example, electrical capsule 100).Coordinate
Be 10 include first level X-axis line, the second side to Y-axis line and third vertical Z axis, three axis vertical take-offs are in each other.Showing
In example property embodiment, electrical capsule 100 includes at least one transformer compartment 102 and breaker compartment 104.Each transformer every
Between 102 include at least one transformer compartment door 106, allow to reach the inside of electrical capsule 100, for example, reaching transformer
System 108 (is shown) in Fig. 2.In the exemplary embodiment, voltage transformer system 108 be configured with internal component space it is effective
Arrangement to be convenient for the manipulation to electric energy, while keep maintenance simplification and safety standard.More specifically, voltage transformer system
108 include multiple transformers 110 (shown in Fig. 2), and each transformer 110 is connected in load-side power line 105 and line side electricity
Between the line of force 107, and it is configured to transmit electric energy between two or more circuits by electromagnetic induction.In exemplary embodiment
In, each transformer 110 is the electric current in the first Inside coil of voltage transformer 110 and change transformer 110, is become with generating
The magnetic field of change increases or reduces come second voltage of inducting in the second Inside coil of transformer 110 from the second inner wire
The output voltage of circle.In an alternative embodiment, each transformer 110 is current transformer 110.In other alternative embodiments,
Transformer 110 can be any kind of transformer 110 or additional electric operated as described convenient for voltage transformer system 108
Gas component.
Electrical capsule 100 further include be arranged on multiple support frame members 112 and be connected to multiple metals thereon or
Clad exterior panel 111, and it provides structure support and for the external environment 114 being present in outside electrical capsule 100
In condition protection.In addition, in the exemplary embodiment, the inside of electrical capsule 100 includes multiple electric members 116, all
Such as electric wire, switching device, switch, connector and electrical load device is connected to such as main power line, circuit-breaker and change
Various other devices needed for depressor.In addition, in the exemplary embodiment, the inside of electrical capsule 100 includes one or more
Inner panel 118.Inner panel 118 may include the one or more apertures 120 limited therebetween through.Aperture 120 is configured to hold
Many functions in the electrical capsule 100 of row include but not limited to convenient for ventilation therein and to allow more in electrical capsule 100
Connection between the independent electrical component 116 of a electric member 116.
Fig. 2 is the exemplary embodiment of the voltage transformer system 108 used (shown in Fig. 1) in combination with electrical capsule 100
Schematic side elevation shows exemplary transformer's tractor 200 in bonding station 202 and is in ungrounded condition 232
Exemplary ground switching mechanism 216.Fig. 3 is the front view of transformer tractor 200 (shown in Fig. 2), is shown exemplary
The exemplary arrangement of transformer 110.Fig. 4 is the exemplary fuse component used (shown in Fig. 3) in combination with transformer 110
204 schematic side elevation.Transformer compartment door 106 be configured about hinge 206 open position 208 (shown in Fig. 7) with
It is rotated between closed position 210.In an alternative embodiment, transformer tractor 200 may include being convenient for voltage transformer system 108 as originally
The text any component operated like that.
In the exemplary embodiment, transformer tractor 200 includes shell 212, the ground connection including earthing switch mechanism 216
System 214 and three transformers 110.In the exemplary embodiment, transformer 110 includes single fuse assembly 204,
Including single fuse 218.Shell 212 is configured to receive the transformer 110 oriented about third direction with interlaced arrangement.More
For body, the first transformer 110 in transformer 110 has the first orientation, and the side in transformer 110 relative to third direction
There is the second orientation relative to third direction to the second adjacent transformer 110, wherein the second orientation is opposite with the first orientation.It should
Three transformers 110 convenient for being located in transformer tractor 200 by orientation, so that the first transformer 110 is positioned to vertical,
Second transformer 110 is positioned to upside downwards and edge is laterally adjacent to the first transformer 110, and third transformer 110 is positioned to perpendicular
Laterally adjacent to the second transformer 110, each fuse assembly 204 of three transformers 110 is fixed along single side axle line on straight and edge
Position.In an alternative embodiment, transformer 110 can be in order to any side that voltage transformer system 108 operates as described
Formula is arranged in shell 212.
In the exemplary embodiment, fuse assembly 204 includes fuse shell 217, is located in fuse shell 217
Fuse 218, the pin contact 220 that is located at the first end 222 of fuse shell 217, and be located in fuse housing
Earthing switch contact 224 at the second end 226 opposite with first end 222 of body 217.In the exemplary embodiment, fuse
218 be pressure fuse 218 in current limliting.In an alternative embodiment, fuse 218 can for convenient for transformer 110 it is as described herein that
Any kind of fuse 218 of sample operation.Fuse shell 217 is configured to that fuse 218 is isolated with external environment, will
Pin contact 220 is maintained at the first end 222 of fuse shell 217, and earthing switch contact 224 is maintained at fuse housing
At the second end 226 of body 217.Pin contact 220 is configured to facilitate being electrically connected between line side power line 107 and fuse 218
It connects, and earthing switch contact 224 is configured to facilitate being electrically connected between fuse 218 and earthed system 214.In alternative embodiment
In, any mode that fuse assembly 204 can operate as described in order to voltage transformer system 108 constructs.
The vertical interlaced arrangement of transformer 110 is full simultaneously convenient for three transformers 110 are included in each shell 212
The sufficient compact switching device standard of Institute of Electrical and Electronics Engineers (IEEE).More specifically, meet the compact switching device of IEEE
The transformer tractor 200 of standard has 650 millimeters of inner width 228.Each transformer 110 has 230
Five millimeters of external width.It is positioned to along laterally adjacent to three transformers for having identical orientation each other and relative to third direction
110 by with 705 millimeters of overall width (that is, being greater than inner width 228), this will not allow for three matched transformers
It closes in the transformer tractor for meeting the compact switching device standard of IEEE.Being convenient for using vertical interlaced disclosed herein construction will
Three transformers 110 are received in the transformer tractor 200 for meeting the compact switching device standard of IEEE, and it is along single side axle
Line positions each fuse assembly 204 to be easy to use single earthing switch mechanism 216.In an alternative embodiment, transformer is led
Draw vehicle 200 may be configured to any mode operated as described in order to voltage transformer system 108 is received to arrange it is any
The transformer 110 of number.
Fig. 5 is the schematic side elevation of voltage transformer system 108 (shown in Fig. 2), shows the change in disengaging configuration 230
Depressor tractor 200 and earthing switch mechanism 216 in ungrounded condition 232.Fig. 6 is earthing switch mechanism 216 (in Fig. 5
It is shown) partial side view.Fig. 7 is the schematic side elevation of voltage transformer system 108 (shown in Fig. 2), is shown in disengaging
The transformer tractor 200 of position 230 and earthing switch mechanism 216 in grounding requirement 234.Fig. 8 is earthing switch mechanism
The partial side view of 216 (shown in Fig. 7).In the exemplary embodiment, referring to Fig. 1-8, bracket 240 is connected in transformer compartment
Between 102 and shell 212, and transformer tractor 200 is configured to facilitate along first direction in bonding station 202 and disengaging configuration
It is moved between 230, wherein " engagement " means that pin contact 220 and line side power line 107 are in electrical contact, and " disengaging " is meant
Pin contact 220 is not in electrical contact with line side power line 107.Earthed system 214 includes ground cable 236, is electrically connected in neighbour
Between the earthing contact 238 and earthing switch mechanism 216 of nearly bracket 240, and earth polar is structured as making switching mechanism
216 ground connection.In an alternative embodiment, transformer tractor 200 can be grasped as described in order to voltage transformer system 108
Any mode made constructs.
In the exemplary embodiment, earthing switch mechanism 216 includes pairs of grounding arm 242, earth brace 244 and is grounded in pairs
Spring 246.Grounding arm 242 includes the first grounding arm 248 and the second grounding arm 254, and the first grounding arm 248 is connected to and shell
The rotary shaft 250 that 212 the first wall of inside 252 couples, and the second grounding arm 254 is connected to and 252 opposite of internal first wall
Another rotary shaft 250 that the second wall of inside 256 of shell 212 couples.Earth brace 244 connects in the first grounding arm 248 with second
Extend between the distal part 258 of ground arm 254.The distal part 258 of first grounding arm 248 and the second grounding arm 254 includes connecing
The thin end of the scroll notch 260 extends notch length 262 along the longitudinal axis 264 of the first grounding arm 248 and the second grounding arm 254.Pairs of bar
Axis 266 extends from the opposite end of earth brace 244 in a second direction, and is configured to the first grounding arm 248 of engagement and the second grounding arm
254 corresponding earth brace notch 260.First grounding arm 248 and the second grounding arm 254 are configured to along direction of rotation 268 around bar
Axis 266 rotates between grounding requirement 234 and ungrounded condition 232.Ground spring 246 is configured to apply a force upon grounding arm
To cause grounding arm 242 to bias towards ungrounded condition 232 on 242.In an alternative embodiment, earthing switch mechanism 216 may include
Any component, and in order to which any mode that voltage transformer system 108 operates as described constructs.
In the exemplary embodiment, shell 212 includes the first roller channel 270 and the connection for being attached to internal first wall 252
It is connected to the second roller channel 272 of internal second wall 256.First roller 274 is attached to the second part of the first grounding arm 248
276, and the second roller 278 is attached to the second part 276 of the second grounding arm 254.First roller 274 is configured to by the first roller
Channel 270 is received, and the second roller 278 is configured to be received by the second roller channel 272, in order to along around earth brace axis 266
Entire travel range of the direction of rotation 268 between grounding requirement 234 and ungrounded condition 232 constrain grounding arm 242.Push plate
280 are attached to transformer compartment door 106, and are configured in transformer compartment door 106 in the closed position 210 and lead in transformer
Draw and earthing switch mechanism 216 is maintained at ungrounded condition 232 when vehicle 200 is in disengaging configuration 230.More specifically, push plate
280 are configured to that grounding arm 242 is caused to rotate along direction of rotation 268, so that being in ungrounded condition in transformer tractor 200
232 and when transformer compartment door 106 in the closed position 210, the first roller 274 and the second roller 278 keep and/or are received in
In corresponding one of first roller channel 270 and the second roller channel 272.In an alternative embodiment, grounding arm 242 can be in transformation
Any mode operated as described during the operation of device tractor 200 in order to voltage transformer system 108 is constrained.
In the exemplary embodiment, shell 212 includes the first earth brace channel 282 and the second earth brace channel 284, structure
It causes to keep earth brace 244 and be translated convenient for earth brace 244 along first direction.First earth brace channel 282 is attached to shell 212
The first wall of inside 252, and the second earth brace channel 284 is attached to inside second wall laterally opposed with internal first wall 252
256.First earth brace channel 282 and the second earth brace channel 284 extend in a first direction.Earthing switch mechanism 216 is configured to
So that in transformer compartment door 106 in the closed position 210, earth brace 244 is in transformer tractor 200 from bonding station
202 are spaced apart into the entire travel range of disengaging configuration 230 with the earthing switch contact 224 of fuse assembly 204.As herein
Described, earthing switch mechanism 216 is in disengaging configuration 230 in transformer tractor 200 and transformer compartment door 106 is in and opens
It is rotated when position 208 along direction of rotation 268, earth brace 244 is caused to move along first direction towards fuse assembly 204, until producing
It is raw with the contact of earthing switch contact 224, so that the fuse 218 in fuse assembly 204 be made to power off and/or be grounded.
In the exemplary embodiment, referring to Fig. 1-8, transformer of the earthing switch mechanism 216 in transformer compartment 102 is led
Draw and be maintained at ungrounded condition 232 in the entire motion range of vehicle 200, while transformer compartment door 106 in the closed position 210
(as described herein).Voltage transformer system 108 is detached from position since transformer tractor 200 can be made to be moved to from bonding station 202
230 are set without opening transformer compartment 106 and convenient for improving the safety of user, thus by user and transformer compartment
Electric energy isolation in 102.Transformer compartment door 106 is opened when transformer tractor 200 is in disengaging configuration 230 convenient for ground connection
Switching mechanism 216 is moved to ungrounded condition 232 from grounding requirement 234, so that transformer 110 be made to power off and/or be grounded (such as this
Described in text).
Fig. 9 is the example that can be used to that transformer 110 is made to power off and/or be grounded using voltage transformer system 108 (shown in Fig. 2)
The flow chart of property method 300.Referring to Fig. 1-8, method 300 includes making transformer tractor 200 along bracket 240 from bonding station
202 mobile 302 arrive disengaging configuration 230.Transformer tractor 200 includes shell 212 and earthing switch mechanism 216.Shell 212 stores up
Deposit multiple transformers 110 comprising have the first of the first orientation relative to the third direction limited by transformer tractor 200
Transformer 110, and there is the second the second laterally adjacent transformer 110 oriented relative to third direction, wherein second is fixed
It is opposite to being oriented with first.Earthing switch mechanism 216 can switch between ungrounded condition 232 and grounding requirement 234, and including
Pairs of grounding arm 242 and earth brace 244.Each grounding arm 242 is connected to the respective inner part of shell 212, and can connect non-
It is rotated between ground condition 232 and grounding requirement 234.Earth brace 244 extends between pairs of grounding arm 242.Method 300 further includes
By earthing switch mechanism 216 from ungrounded condition 232 switching 304 to grounding requirement 234 to cause earth brace 244 to contact multiple changes
Earthing contact 238 on depressor 110.
Embodiment as described herein includes voltage transformer system comprising transformer tractor.Transformer tractor is electrical
A kind of electrical switchgear in capsule is designed between the operation bonding station in electrical capsule and maintenance disengaging configuration
Transport transformer.Transformer tractor as described herein generally includes shell and earthing switch.Shell is configured to receive multiple
Transformer, they are arranged so that the first transformer in multiple transformers has the first orientation relative to third direction, and more
The second laterally adjacent transformer in a transformer has the second orientation relative to third direction, wherein the second orientation and first
Orientation is opposite.Earthing switch mechanism have ungrounded condition and grounding requirement, and the interior section including being connected to shell at
To grounding arm and the earth brace extended between pairs of grounding arm, pairs of grounding arm is configured to along direction of rotation in ungrounded item
It is rotated between part and grounding requirement.In the exemplary embodiment, earthing switch mechanism is configured to be in grounding arm and earth brace
The door of grounding requirement and voltage transformer system compartment powers off transformer when opening.In one embodiment, transformer tractor packet
The bracket extended in a first direction is included, and transformer tractor is configured to put down between bonding station and disengaging configuration along bracket
It moves, while voltage transformer system compartment door is closed.Voltage transformer system by using the intracorporal transformer of shell vertical interlaced arrangement and
Utilized convenient for the useful space in electrical capsule, and by convenient for make transformer in electrical capsule power off and/or be grounded without
Operator is set to be exposed to energization and/or ungrounded transformer to be convenient for improving the safety of electrical capsule.
The example technique effect of method described herein, system and equipment include it is following at least one: a) improve electrical
Capsule inner space service efficiency, b) reduce the exposure of operator to the electric member being powered, c) improve the effective of grounding apparatus
Property and d) improve transformer tractor reliability.
The exemplary embodiment of above-detailed transformer tractor and the method using transformer tractor.Transformation
Device tractor and method are not limited to specific embodiment as described herein, but, the component of transformer tractor and/or the behaviour of method
Make can independently and with other components as described herein and/or operation separate using.In addition, the component and/or operation
It can be limited in other systems, methods and/or devices or they are applied in combination with it, and be not limited to only about change as described herein
Depressor tractor and system are implemented.
The execution of the operation of the embodiment of disclosure shown and described herein or the sequence of progress are not required, and are removed
It is non-to also point out.That is, operation can execute in any order, unless otherwise noted, and the embodiment of present disclosure may include
More or less than the operation of those disclosed herein.For example, it is contemplated that having gone out before another operation, simultaneously or later having held
Row carries out specific operation in the range of the aspect of present disclosure.
Although the special characteristic of the various embodiments of present disclosure can be shown and in other attached drawings in some drawings
It is not shown, but this is merely for convenience.According to the principle of present disclosure, any feature of attached drawing can be with any other attached drawing
Any feature combination comes referring to and/or is claimed.
The written description uses examples to disclose present disclosure, including optimal mode, and also makes those skilled in the art
Member can implement present disclosure, including manufacturing and using any device or system and executing any method being incorporated to.This public affairs
It opens content patentable scope to be defined by the claims, and may include the other examples that those skilled in the art expect.
If these other examples have the not structural detail different from the literal language of claim, or if they include and power
Equivalent structural elements of the literal language without essence difference that benefit requires, then be intended to the model for making these other examples be in claim
In enclosing.
Claims (20)
1. a kind of transformer tractor of for transformer system, the transformer tractor limits first direction, second direction
And third direction, three directions are orthogonal to each other, the transformer tractor includes:
It being arranged to receive the shell of the first transformer, first transformer is in the first orientation relative to the third direction,
And the second laterally adjacent transformer is in the second orientation relative to the third direction, wherein second orientation and described the
One orientation is opposite；And
The earthing switch mechanism that is attached to the shell and can switch between ungrounded condition and grounding requirement, the ground connection are opened
Shutting mechanism includes:
Pairs of grounding arm is each coupled to the respective inner part of the shell and can connect in the ungrounded condition with described
It is rotated between ground condition；And
The earth brace extended between the pairs of grounding arm.
2. transformer tractor according to claim 1, which is characterized in that the earth brace is along the second direction in institute
It states and extends between pairs of grounding arm.
3. transformer tractor according to claim 1, which is characterized in that the shell includes the first wall and opposite
Two walls, and wherein the pairs of grounding arm includes being attached to the first arm of the interior section of first wall and being attached to described
Second arm of the interior section of the second wall.
4. transformer tractor according to claim 1, which is characterized in that the earthing switch mechanism further includes being connected in
At least one spring between at least one grounding arm and the shell in the pairs of grounding arm, and wherein described at least one
A spring is operable to apply a force upon at least one described grounding arm to cause the pairs of grounding arm and the earth brace
Rotation.
5. transformer tractor according to claim 1, which is characterized in that the transformer tractor further includes along described
The bracket that first direction extends and the earthing contact for being attached to the bracket, wherein the shell can be along the bracket in engagement position
It sets and is translated between disengaging configuration, and wherein ground cable is connected between the earthing contact and the earthing switch mechanism.
6. transformer tractor according to claim 2, which is characterized in that the shell includes keeping the earth brace
First earth brace channel and the second earth brace channel.
7. transformer tractor according to claim 1, which is characterized in that the shell includes the first roller channel and the
Two roller channels.
8. transformer tractor according to claim 7, which is characterized in that the pairs of grounding arm includes the first grounding arm
With the second grounding arm, it includes the second roller that first grounding arm, which includes the first roller and second grounding arm, and described first
Roller and second roller engage first roller channel and second roller channel respectively.
9. a kind of voltage transformer system for electrical capsule, the electrical capsule limits first direction, second direction and third party
To three directions are orthogonal to each other, and the voltage transformer system includes:
Transformer tractor, can be connected in the load-side power line coupled at least one electric member and and at least one
Between the line side power line of electric power source connection, the transformer tractor includes:
Shell；
The intracorporal multiple transformers of the shell are arranged in, wherein the first transformer in the multiple transformer is relative to described
Three directions have first orientation, and wherein the second laterally adjacent transformer in the multiple transformer relative to the third
Direction has the second orientation, wherein second orientation is opposite with first orientation；
The earthing switch mechanism that is attached to the shell and can switch between ungrounded condition and grounding requirement, the ground connection are opened
Shutting mechanism includes:
Pairs of grounding arm is each coupled to the interior section of the shell and is configured to along direction of rotation in the ungrounded item
It is rotated between part and the grounding requirement；And
The earth brace extended between the pairs of grounding arm.
10. voltage transformer system according to claim 9, which is characterized in that each transformer in the multiple transformer
Including one of voltage transformer and current transformer.
11. voltage transformer system according to claim 9, which is characterized in that the earth brace is along the second direction in institute
It states and extends between pairs of grounding arm.
12. voltage transformer system according to claim 9, which is characterized in that the shell includes the first wall and opposite
Two walls, and wherein the pairs of grounding arm includes being connected to the first arm of the interior section of first wall and being connected to described
Second arm of the interior section of the second wall.
13. voltage transformer system according to claim 9, which is characterized in that the earthing switch mechanism further includes being connected in
At least one spring between at least one grounding arm and the shell in the pairs of grounding arm, and wherein described at least one
A spring is operable to apply a force upon at least one described grounding arm to cause the pairs of grounding arm and the earth brace
Rotation.
14. voltage transformer system according to claim 9, which is characterized in that each transformer in the multiple transformer
Including fuse assembly, each fuse assembly includes:
Fuse shell；
It is located in the intracorporal fuse of the fuse housing；
It is located in the pin contact at the first end of the fuse shell；And
It is located in the earthing switch contact at the second end of the fuse shell, the second end is opposite with the first end.
15. voltage transformer system according to claim 13, which is characterized in that the voltage transformer system further includes along described
The bracket that one direction extends, wherein the transformer tractor can be put down between bonding station and disengaging configuration along the bracket
It moves.
16. voltage transformer system according to claim 15, which is characterized in that the voltage transformer system further includes being attached to institute
The ground cable stating the earthing contact of bracket and being connected between the earthing contact and the earthing switch mechanism.
17. voltage transformer system according to claim 11, which is characterized in that the shell further includes keeping the earth brace
The first earth brace channel and the second earth brace channel.
18. voltage transformer system according to claim 17, which is characterized in that the shell includes the first roller channel and the
Two roller channels, and wherein the pairs of grounding arm includes the first grounding arm and the second grounding arm, first grounding arm includes
First roller and second grounding arm include the second roller, and first roller and second roller engage described the respectively
One roller channel and second roller channel.
19. voltage transformer system according to claim 15, which is characterized in that the voltage transformer system further includes being attached to institute
The push plate of the transformer compartment door of electrical capsule is stated, wherein the push plate is arranged to be in close stance in the transformer compartment door
It sets and the earthing switch mechanism is maintained at ungrounded condition when the transformer tractor is in disengaging configuration.
20. a kind of method for powering off transformer, which comprises
Transformer tractor is set to be moved to disengaging configuration from bonding station along bracket, the transformer tractor includes:
The shell of multiple transformers is stored, the multiple transformer includes relative to the third limited by the transformer tractor
First transformer of the direction with first direction and have laterally adjacent the of the second orientation relative to the third direction
Two transformers, wherein second orientation is opposite with first orientation；And
The earthing switch mechanism that is attached to the shell and can switch between ungrounded condition and grounding requirement, the ground connection are opened
Shutting mechanism includes:
Pairs of grounding arm is each coupled to the respective inner part of the shell and can connect in the ungrounded condition with described
It is rotated between ground condition；
The earth brace extended between the pairs of grounding arm；And
The earthing switch mechanism is switched into the grounding requirement from the ungrounded condition to cause the earth brace to contact
Earthing contact on the multiple transformer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133898.8A CN110137021B (en) | 2018-02-09 | 2018-02-09 | Transformer system including a transformer tractor |
| PCT/CN2019/074476 WO2019154332A1 (en) | 2018-02-09 | 2019-02-01 | Transformer systems including transformer trucks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133898.8A CN110137021B (en) | 2018-02-09 | 2018-02-09 | Transformer system including a transformer tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110137021A true CN110137021A (en) | 2019-08-16 |
| CN110137021B CN110137021B (en) | 2024-05-03 |
Family
ID=67547843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810133898.8A Active CN110137021B (en) | 2018-02-09 | 2018-02-09 | Transformer system including a transformer tractor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110137021B (en) |
| WO (1) | WO2019154332A1 (en) |
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| CA385451A (en) * | 1939-12-05 | H. Kerr Henry | Grounding switch | |
| EP2230735B1 (en) * | 2009-03-20 | 2016-10-26 | ABB Schweiz AG | Electric switchgear |
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| GB548307A (en) * | 1941-04-02 | 1942-10-06 | Reyrolle A & Co Ltd | Improvements in or relating to enclosed electric switchgear |
| CN1291816A (en) * | 1999-10-07 | 2001-04-18 | Lg产电株式会社 | Gas insulating switch device |
| CN2609155Y (en) * | 2003-03-18 | 2004-03-31 | 上海市天灵开关厂 | Looped-network cabinet transformer side-linking earthing switch |
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| CN206099127U (en) * | 2016-07-04 | 2017-04-12 | 国家电网公司 | 110kV vehicle -mounted movable type transformer substation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110137021B (en) | 2024-05-03 |
| WO2019154332A8 (en) | 2020-02-27 |
| WO2019154332A1 (en) | 2019-08-15 |
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