CN105406385A - Potential transformer (PT) trolley and power distribution cabinet provided with same - Google Patents
Potential transformer (PT) trolley and power distribution cabinet provided with same Download PDFInfo
- Publication number
- CN105406385A CN105406385A CN201510876956.2A CN201510876956A CN105406385A CN 105406385 A CN105406385 A CN 105406385A CN 201510876956 A CN201510876956 A CN 201510876956A CN 105406385 A CN105406385 A CN 105406385A
- Authority
- CN
- China
- Prior art keywords
- handcart
- fuse
- power distribution
- distribution cabinet
- conductive rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H02B11/02—Details
- H02B11/04—Isolating-contacts, e.g. mountings or shieldings
-
- 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
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
-
- 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
Abstract
The invention relates to a potential transformer (PT) trolley and a power distribution cabinet provided with the same. The PT trolley comprises a trolley frame, PTs and a contact mechanism, wherein the PTs are arranged on the trolley frame, the contact mechanism is electrically connected with the power distribution cabinet and comprises isolation switches, each isolation switch comprises a movable conductive rod and an operating mechanism and also comprises a conductive seat, the movable conductive rod is vertically arranged, the operating mechanism drives the movable conductive rod to vertically move so as to make a conductive loop between the PT trolley and the power distribution cabinet connected and disconnected, the conductive seat is electrically connected with the movable conductive rod in a sliding way, the PTs are electrically connected onto the conductive seats, the PT trolley pushes the power distribution cabinet, and the operating mechanism drives the movable conductive rod to vertically move so as to make the loop connected and disconnected. By the PT trolley and the power distribution cabinet, the problem that the width of the PT trolley is relatively wide caused by the contact mechanism transversely arranged on the PT trolley in the prior art is solved, and thus, the width of the PT trolley is reduced.
Description
Technical field
The present invention relates to middle pressure for distribution switchgear, be specifically related to a kind of PT handcart and there is the power distribution cabinet of this PT handcart.
Background technology
In medium voltage distribution network system, metal closed switch cabinet is used widely.The main switch of current withdraw-type switch cabinet adopts handcart structure, PT handcart is the one in multiple handcart scheme, at present, PT handcart adopts the pusher structure of level mostly, the utility model patent of Chinese patent CN201018214Y discloses a kind of voltage mutual inducer trolley and PT handcart of withdrawing switch apparatus, described PT handcart comprises vehicle frame, be installed on the voltage transformer on vehicle frame, lightning arrester, fuse and contact arm, affiliated contact arm transverse arrangement of turbo is on PT handcart vehicle frame, namely the length direction of contact arm is consistent with the direction of propulsion of PT handcart, along with the level of PT handcart pushes, the inserted terminal driving the contact arm of transverse arrangement of turbo to conduct electricity to be connected on power distribution cabinet is with conducting loop, along with the level of PT handcart shifts out, the contact arm of transverse arrangement of turbo is separated with cutoff circuit with the inserted terminal on power distribution cabinet, the transverse arrangement of turbo of described contact arm on PT handcart, add the width of PT handcart.
Summary of the invention
For solving the problem, the invention provides and a kind ofly solve the larger PT handcart of PT handcart width that the transverse arrangement of turbo because of contact arm causes, meanwhile, present invention also offers a kind of use this PT handcart power distribution cabinet.
A kind of PT handcart of the present invention adopts following technical scheme: a kind of PT handcart, comprise the vehicle frame of left and right directions movement, be installed on voltage transformer on vehicle frame with for voltage transformer and power distribution cabinet being conducted electricity the contact mechanism be connected, described contact mechanism is made up of isolating switch, described isolating switch comprises the moving conductive rod arranged along the vertical direction and the operating mechanism driving moving conductive rod to move up and down to switch on and off PT handcart and power distribution cabinet galvanic circle, isolating switch also comprises the conductive seat be connected with described moving conductive rod sliding conduction, voltage transformer is electrically connected on described conductive seat.
The outer race of described moving conductive rod is provided with the insulating cylinder extended along the vertical direction.
Be provided with the drive driven by described operating mechanism that axis extends in left-right direction in described insulating cylinder, drive and described moving conductive rod are in transmission connection to drive moving conductive rod to move up and down.
Described insulating cylinder offer radially for the installing hole that corresponding fuse loads, upper and lower fixed block is respectively arranged with in the two ends up and down of installing hole in insulating cylinder, the upper end of fuse is provided with the fuse upper end base be connected with upper fixed block, and the lower end of fuse is provided with the fuse lower end seat be connected with lower fixed block.
Described fuse and conductive seat are wholely set.
Described drive, conducting rod and fuse are disposed in order along the longitudinal direction, the Long Circle column structure that insulating cylinder shape is left and right sides is plane, side, front and back is disc.
Described PT handcart also comprises the lightning arrester of the top being arranged on voltage transformer, and one end of lightning arrester is connected with fuse conducting by busbar, and the other end is removable to be fixed on the lightning arrester mounting panel that is arranged on vehicle frame.
Described lightning arrester mounting panel one end is fixed on the mechanism case for driving operating mechanism be arranged on vehicle frame, and the other end is fixed on the insulation column that is arranged on vehicle frame.
The outgoing line side of described voltage transformer is serially connected with a resonance eliminator.
A kind of power distribution cabinet of the present invention adopts following technical scheme: a kind of power distribution cabinet, comprise installing space and the PT handcart for moving left and right propelling for PT handcart, described PT handcart comprises the vehicle frame of left and right directions movement, be installed on voltage transformer on vehicle frame with for voltage transformer and power distribution cabinet being conducted electricity the contact mechanism be connected, described contact mechanism is made up of isolating switch, described isolating switch comprises the moving conductive rod arranged along the vertical direction and the operating mechanism driving moving conductive rod to move up and down to switch on and off PT handcart and power distribution cabinet galvanic circle, isolating switch also comprises the conductive seat be connected with described moving conductive rod sliding conduction, voltage transformer is electrically connected on described conductive seat, described power distribution cabinet is provided with the link moving up and down to connect loop for moving conductive rod in the top of installing space.
The outer race of described moving conductive rod is provided with the insulating cylinder extended along the vertical direction.
Be provided with the drive driven by described operating mechanism that axis extends in left-right direction in described insulating cylinder, drive and described moving conductive rod are in transmission connection to drive moving conductive rod to move up and down.
Described insulating cylinder offer radially for the installing hole that corresponding fuse loads, upper and lower fixed block is respectively arranged with in the two ends up and down of installing hole in insulating cylinder, the upper end of fuse is provided with the fuse upper end base be connected with upper fixed block, and the lower end of fuse is provided with the fuse lower end seat be connected with lower fixed block.
Described fuse and conductive seat are wholely set.
Described drive, conducting rod and fuse are disposed in order along the longitudinal direction, the Long Circle column structure that insulating cylinder shape is left and right sides is plane, side, front and back is disc.
Described PT handcart also comprises the lightning arrester of the top being arranged on voltage transformer, and one end of lightning arrester is connected with fuse conducting by busbar, and the other end is removable to be fixed on the lightning arrester mounting panel that is arranged on vehicle frame.
Described lightning arrester mounting panel one end is fixed on the mechanism case for driving operating mechanism be arranged on vehicle frame, and the other end is fixed on the insulation column that is arranged on vehicle frame.
The outgoing line side of described voltage transformer is serially connected with a resonance eliminator.
Beneficial effect of the present invention is: a kind of PT handcart of the present invention, comprise vehicle frame, be installed on voltage transformer on vehicle frame and power distribution cabinet and conduct electricity the contact mechanism be connected, described contact mechanism is made up of isolating switch, described isolating switch comprises the moving conductive rod arranged up and down and the operating mechanism driving moving conductive rod to move up and down to switch on and off major loop, PT handcart advances power distribution cabinet, operating mechanism drives moving conductive rod to move up and down to switch on and off loop, solve the problem that the PT handcart width that causes due to the contact mechanism of transverse arrangement of turbo on PT handcart in prior art is larger, thus reduce the width of PT handcart.
Further, lightning arrester is arranged at the top of voltage transformer, and lightning arrester two ends adopting releasable connection mode, only needing when changing lightning arrester the nut removing lightning arrester two ends, it is convenient to change.
Accompanying drawing explanation
Fig. 1 is the structural representation of the PT handcart in an embodiment of a kind of power distribution cabinet of the present invention;
Fig. 2 is that insulating cylinder and isolating switch, fuse assemble schematic diagram;
Fig. 3 is the syndeton schematic diagram of isolating switch and fuse;
Fig. 4 is the structural representation of insulating cylinder.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further, as Figure 1-4, a kind of power distribution cabinet, comprises PT handcart, described PT handcart, comprises vehicle frame 8, the mechanism case 1 be installed on vehicle frame 8, insulating cylinder 5, isolating switch 3, voltage transformer 7, fuse 6 and lightning arrester 2.Voltage transformer 7 is conducted electricity with the inserted terminal of power distribution cabinet by the contact mechanism be made up of isolating switch 3 and is connected, described isolating switch 3 comprises the moving conductive rod 31 arranged along the vertical direction and the operating mechanism driving moving conductive rod 31 to move up and down to switch on and off PT handcart and power distribution cabinet galvanic circle, described isolating switch 3 also comprises the conductive seat and quiet end conductive clip 61 that are connected with described moving conductive rod sliding conduction, moving conductive rod 31 adopts aluminium machining to form, the lower end of moving conductive rod 31 is provided with rectangle projection, coordinate to connect loop for conducting electricity with quiet end conductive clip 61, fuse 6 is provided with between conductive seat and voltage transformer 7, the fuse upper end base 62 for installing fuse 6 is wholely set with quiet end conductive clip 61, certainly in other embodiments, fuse upper end base 62 and quiet end conductive clip 61 also can not adopt Integral design, also can mode with bolts.Moving conductive rod 31 outer race is provided with insulating cylinder 5, described insulating cylinder 5 comprises insulating cylinder body, insulating cylinder base and insulation cover 4, the drive 32 driven by described operating mechanism that axis extends in left-right direction is provided with in insulating cylinder 5, drive 32 and described moving conductive rod 31 are in transmission connection to drive moving conductive rod 31 to move up and down, described drive 32, moving conductive rod 31 and fuse 6 are disposed in order along the longitudinal direction, insulating cylinder shape is left and right sides is plane, side, front and back is the Long Circle column structure of disc, certainly in other embodiments, insulating cylinder cylindrical shell can also be cylindrical structure.Insulating cylinder 5 offer radially for the opening that corresponding fuse 6 loads, insulating cylinder cylindrical shell upper end outer wall left and right plane offers the first installing hole 51 for installing drive 32, in on two ends are respectively arranged with up and down of opening in insulating cylinder 5, lower fixed block, the upper end of fuse 6 is provided with the fuse upper end base 62 be connected with upper fixed block, the lower end of fuse 6 is provided with the fuse upper end base 63 be connected with lower fixed block, fixed piece comprises two boss 52 be symmetrical set on insulating cylinder 5 left and right plane inwall, described boss 52 is provided with and passes with the screw mounting hole connecting fuse upper end base 62 from top to bottom for screw, lower fixed block is the first abaculus 53 be cast on insulating cylinder 5, by screw radial direction, fuse lower end seat 63 is fixed on the first abaculus 53.
Insulating cylinder 5 inner chamber bottom is provided with full skirt on insulating cylinder inside and outside wall, ensure insulation level, described insulating cylinder base lower surface is provided with the second abaculus 54 for being fixedly connected with PT handcart, certainly the second abaculus 54 also can not be set in other embodiments, bolt is adopted to be fixed on by insulating cylinder on PT handcart vehicle frame, insulating cylinder body top is provided with insulation cover 4, shielding protection is carried out to insulating cylinder inner conductive part and upper and lower guide effect is played to moving conductive rod 31, in the present invention, fuse and isolating switch are all installed on insulating cylinder inside, obtain the shielding protection of insulating cylinder, insulating reliability is high.Certainly, in other embodiments, fuse also can not be arranged in insulating cylinder.Fuse 6 comprises fusion tube 64, the opening that fuse upper end base 62 and fuse lower end seat 63 can be used for fusion tube 64 level to push and release with one respectively, when fuse fusion tube 64 changed by needs, only need the lower end prizing fusion tube 64, it is made to depart from fuse upper and lower end seat, to take advantage of a situation taking-up fuse, when fuse is installed only need fusion tube 64 level to be pushed in upper and lower end seat.Be provided with above described conductive seat and conduct electricity the busbar 13 be connected with lightning arrester 2, by bolt, conductive seat and busbar 13 are fixed on the boss 52 of insulating cylinder body inwall, described busbar 13 offers install for moving conductive rod 31 and conduct electricity with quiet end conductive clip 61 the second installing hole be connected.
Three insulating cylinders and three corresponding voltage transformers are provided with in the present embodiment, three insulating cylinders are between left and right every being arranged on vehicle frame 8, three voltage transformers are between left and right every being arranged on vehicle frame 8, three voltage transformers and three insulating cylinder fore-and-aft directions be arranged in parallel, the primary side inlet wire of voltage transformer 7 and the lower end seat 63 of fuse 6 are coupled together by copper bar, the outgoing line side copper bar of voltage transformer 7 is shorted together, and is connected in series a resonance eliminator between three voltage transformers.Certainly in other embodiments, the quantity of insulating cylinder and voltage transformer can adjust according to actual needs.
Lightning arrester 2 is arranged on the lightning arrester mounting panel 9 above voltage transformer 7, described lightning arrester mounting panel 9 one end is fixed on mechanism case 1, the other end is by being arranged at insulation column 10 support and connection on vehicle frame, lightning arrester 2 comprises earth terminal and high-pressure side terminals, the earth terminal of described lightning arrester 2 is bolted connection on lightning arrester mounting panel 9, and being connected in series ground connection with copper bar, the high-pressure side terminals of described lightning arrester 2 and the upper end base 62 of fuse 6 are bolted together by line conductor row.Because lightning arrester 2 is arranged on the top of PT handcart, and two ends adopt releasable connection mode, only need when changing lightning arrester 2 nut removing lightning arrester 2 two ends, and it is convenient to change.Certainly in other embodiments, that insulation column all can be adopted to carry out supports is fixing at the two ends of lightning arrester mounting panel.
Drive in the present embodiment is the worm gear be arranged on the first installing hole 51 being arranged at insulating cylinder inside, and moving conductive rod is provided with the worm section coordinated with worm-drive.In other embodiments of the invention, described drive can also be gear, now moving conductive rod is provided with the section of rack be meshed with gear.
A kind of embodiment of PT handcart is identical with the embodiment of the PT handcart in each embodiment of above-mentioned a kind of power distribution cabinet, repeats no more herein.
Claims (10)
1. a PT handcart, comprise the vehicle frame of left and right directions movement, be installed on voltage transformer on vehicle frame with for voltage transformer and power distribution cabinet being conducted electricity the contact mechanism be connected, it is characterized in that: described contact mechanism is made up of isolating switch, described isolating switch comprises the moving conductive rod arranged along the vertical direction and the operating mechanism driving moving conductive rod to move up and down to switch on and off PT handcart and power distribution cabinet galvanic circle, isolating switch also comprises the conductive seat be connected with described moving conductive rod sliding conduction, and voltage transformer is electrically connected on described conductive seat.
2. a kind of PT handcart according to claim 1, is characterized in that: the outer race of described moving conductive rod is provided with the insulating cylinder extended along the vertical direction.
3. a kind of PT handcart according to claim 2, it is characterized in that: be provided with the drive driven by described operating mechanism that axis extends in left-right direction in described insulating cylinder, drive and described moving conductive rod are in transmission connection to drive moving conductive rod to move up and down.
4. a kind of PT handcart according to claim 3, it is characterized in that: described insulating cylinder offers radially for the installing hole that corresponding fuse loads, upper and lower fixed block is respectively arranged with in the two ends up and down of installing hole in insulating cylinder, the upper end of fuse is provided with the fuse upper end base be connected with upper fixed block, and the lower end of fuse is provided with the fuse lower end seat be connected with lower fixed block.
5. a kind of PT handcart according to claim 4, is characterized in that: described fuse and conductive seat are wholely set.
6. a kind of PT handcart according to claim 4 or 5, is characterized in that: described drive, conducting rod and fuse are disposed in order along the longitudinal direction, the Long Circle column structure that insulating cylinder shape is left and right sides is plane, side, front and back is disc.
7. a kind of PT handcart according to claim 6, it is characterized in that: described PT handcart also comprises the lightning arrester of the top being arranged on voltage transformer, one end of lightning arrester is connected with fuse conducting by busbar, and the other end is removable to be fixed on the lightning arrester mounting panel that is arranged on vehicle frame.
8. a kind of PT handcart according to claim 7, is characterized in that: described lightning arrester mounting panel one end is fixed on the mechanism case for driving operating mechanism be arranged on vehicle frame, and the other end is fixed on the insulation column that is arranged on vehicle frame.
9. a kind of PT handcart according to claim 8, is characterized in that: the outgoing line side of described voltage transformer is serially connected with a resonance eliminator.
10. a power distribution cabinet, comprise the installing space for moving left and right propelling for PT handcart, it is characterized in that: described power distribution cabinet also comprises the PT handcart according to any one of claim 1-9, described power distribution cabinet is provided with the link moving up and down to connect loop for moving conductive rod in the top of installing space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876956.2A CN105406385B (en) | 2015-12-03 | 2015-12-03 | A kind of PT handcarts and the power distribution cabinet with the PT handcarts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876956.2A CN105406385B (en) | 2015-12-03 | 2015-12-03 | A kind of PT handcarts and the power distribution cabinet with the PT handcarts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406385A true CN105406385A (en) | 2016-03-16 |
| CN105406385B CN105406385B (en) | 2017-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510876956.2A Active CN105406385B (en) | 2015-12-03 | 2015-12-03 | A kind of PT handcarts and the power distribution cabinet with the PT handcarts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105406385B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505453A (en) * | 2016-12-28 | 2017-03-15 | 华仪电气股份有限公司 | A kind of PT handcarts |
| CN106783376A (en) * | 2016-12-23 | 2017-05-31 | 亚洲电力设备(深圳)股份有限公司 | Compact type vacuum is switched |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624939A1 (en) * | 1993-05-10 | 1994-11-17 | Licentia Patent-Verwaltungs-GmbH | Contact arrangement for plug-in type power circuit breakers in switchgears |
| WO2009121752A2 (en) * | 2008-04-04 | 2009-10-08 | Siemens Aktiengesellschaft | Apparatus for operating a switching device |
| CN201327959Y (en) * | 2008-12-09 | 2009-10-14 | 常熟开关制造有限公司(原常熟开关厂） | Measuring trolley |
| CN202178522U (en) * | 2011-08-12 | 2012-03-28 | 上海西门子开关有限公司 | Handcart assembly and switch cubicle |
| CN203456778U (en) * | 2013-09-17 | 2014-02-26 | 厦门兴厦控电气有限公司 | Metering handcart matching high tension switchgear |
| CN203456777U (en) * | 2013-09-17 | 2014-02-26 | 厦门兴厦控电气有限公司 | Handcart used for collecting high tension switchgear voltage signals |
| CN204103329U (en) * | 2014-10-20 | 2015-01-14 | 无锡市新一代电力电器有限公司 | Side-installed shifting type high-tension switch cabinet voltage mutual inducer trolley |
| CN205282963U (en) * | 2015-12-03 | 2016-06-01 | 平高集团有限公司 | PT handcart and have switch board of this PT handcart |
-
2015
- 2015-12-03 CN CN201510876956.2A patent/CN105406385B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624939A1 (en) * | 1993-05-10 | 1994-11-17 | Licentia Patent-Verwaltungs-GmbH | Contact arrangement for plug-in type power circuit breakers in switchgears |
| WO2009121752A2 (en) * | 2008-04-04 | 2009-10-08 | Siemens Aktiengesellschaft | Apparatus for operating a switching device |
| CN201327959Y (en) * | 2008-12-09 | 2009-10-14 | 常熟开关制造有限公司(原常熟开关厂） | Measuring trolley |
| CN202178522U (en) * | 2011-08-12 | 2012-03-28 | 上海西门子开关有限公司 | Handcart assembly and switch cubicle |
| CN203456778U (en) * | 2013-09-17 | 2014-02-26 | 厦门兴厦控电气有限公司 | Metering handcart matching high tension switchgear |
| CN203456777U (en) * | 2013-09-17 | 2014-02-26 | 厦门兴厦控电气有限公司 | Handcart used for collecting high tension switchgear voltage signals |
| CN204103329U (en) * | 2014-10-20 | 2015-01-14 | 无锡市新一代电力电器有限公司 | Side-installed shifting type high-tension switch cabinet voltage mutual inducer trolley |
| CN205282963U (en) * | 2015-12-03 | 2016-06-01 | 平高集团有限公司 | PT handcart and have switch board of this PT handcart |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783376A (en) * | 2016-12-23 | 2017-05-31 | 亚洲电力设备(深圳)股份有限公司 | Compact type vacuum is switched |
| CN106505453A (en) * | 2016-12-28 | 2017-03-15 | 华仪电气股份有限公司 | A kind of PT handcarts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105406385B (en) | 2017-11-03 |
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