CN208460641U - Earthed system is isolated in three pole traction rectifier transformers - Google Patents
Earthed system is isolated in three pole traction rectifier transformers Download PDFInfo
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- CN208460641U CN208460641U CN201821084026.9U CN201821084026U CN208460641U CN 208460641 U CN208460641 U CN 208460641U CN 201821084026 U CN201821084026 U CN 201821084026U CN 208460641 U CN208460641 U CN 208460641U
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Abstract
The utility model discloses a kind of three pole traction rectifier transformers, and earthed system, including installing base frame is isolated；Three poles isolation earthing or grounding means is connected to the middle part of installing base frame, the side for being set to installing base frame for providing disconnecting switch shaft and ground switch rotating shaft the motor-operating mechanism case of power of rotation；Three poles, which are isolated in earthing or grounding means, is equipped with disconnecting switch and earthing switch, and the folding of disconnecting switch and earthing switch is realized by disconnecting switch shaft and ground switch rotating shaft；Pull rod fixed frame is set between installing base frame and motor-operating mechanism case, including fixed bottom plate and support ring set on the bottom plate；Disconnecting switch shaft and ground switch rotating shaft pass through support ring and are only capable of rotating in support ring；The motor-operating mechanism case is used to provide the power of rotation to disconnecting switch shaft and ground switch rotating shaft.The utility model can be realized the power transmission and power-off and the connection and dismounting of input terminal power circuit protective ground wire of traction rectifier transformer input terminal power supply.
Description
Technical field
The utility model relates to the maintenance of urban track traffic tractive power supply system, and in particular to whole to a kind of three poles traction
Earthed system is isolated in convertor transformer.
Background technique
Currently, being sent from 35KV high-voltage feedback power cabinet through cable in urban track traffic DC1500V tractive power supply system
35KV three-phase alternating current power frequency supply is connected to the input terminal of traction rectifier transformer.Its system voltage is AC35KV, system power
For 1250A.Since the tractive power supply system of rail traffic DC1500V is country-level load, in order to guarantee DC power-supply system
Company continue property ﹑ stability and safety, for the key equipment " traction rectifier transformer " in system, each equipment management department
Regular stringent repair and maintenance.Currently, being directed to the input terminal 35KV three-phase alternating current power frequency supply circuit of traction rectifier transformer, people
Be to implement during repair and maintenance according to the following steps:
1, have a power failure
Then the breaker of disjunction 35KV feeder cabinet first is kept apart the input terminal of traction rectifier transformer by manpower
Shutdown is opened.
2, hanging earthing conductor
It is by the manual hanging earthing conductor of manpower, the 35KV of transformer is primary after confirming no electricity on inspection after power failure
Circuit is connect with protective ground wire, to protect the safety of repair and maintenance personnel.
3, repair and maintenance
It is errorless on inspection to implement repair and maintenance afterwards after protective ground wire mounts.Careful operation is needed to keep away in maintenance process
Exempt from the insulating element of damage 35KV circuit and related components.
4, test is checked and accepted
After repair and maintenance is complete, corresponding test should be done by Maintenance and Repair regulation, measure corresponding data to determine maintenance dimension
Whether shield is qualified.
5, dismounting ground wire
After testing acceptance(check), then dismantled protective ground wire by manpower.
6, power transmission
After protective ground wire of dismantling it is errorless on inspection after, close input terminal disconnecting switch, then close 35KV feed again
The breaker of cabinet carries out power transmission.
7, after power transmission, after operator observes situation without exception, that is, repair and maintenance operating process is completed, can formally be thrown
Enter operation.
People are in multiple traction rectifier transformer repair and maintenance operating process implementation process, and gradually there are following several for discovery
A problem:
1, the input terminal of traction rectifier transformer and disconnecting switch far apart, disjunction and close disconnecting switch and compare expense
When, trouble.
2, in the repair and maintenance of 35KV circuit, electric insulation safety requirements is high, is easily damaged high-voltage electricity in operation
The electric insulation of cable and high-voltage isulation terminal, recovery difficulty is big, and recovery time is long, and it is high to restore funds.
3, traction rectifier transformer is during repair and maintenance, hanging earthing conductor and removes ground wire great work intensity, when work
Between long and efficiency it is very low.And the contact quality of ground line can only be with judgement be visually observed, and Reliability comparotive is poor.
Utility model content
The utility model provides a kind of three pole traction rectifier transformers isolation earthed system, to become to traction rectifier
Depressor carries out power transmission and power-off and input terminal power circuit that traction rectifier transformer input terminal power supply is realized when repair and maintenance
The connection and dismounting of protective ground wire, to guarantee the electrical safety of equipment and the life security of personnel.
In order to solve the above technical problems, the technology employed by the present utility model is
A kind of three pole traction rectifier transformers isolation earthed system, including installing base frame；Earthing or grounding means connection is isolated in three poles
In the middle part of installing base frame, motor-operating mechanism case is set to the side of installing base frame；
The three pole isolation earthing or grounding means includes the bedframe being connected in the middle part of installing base frame, is set side by side on bedframe
There are three the wherein phases that dynamic touching switch, each dynamic touching switch are correspondingly connected in three phase mains；Dynamic touching switch includes upper quiet
Contact, isolation movable touch knife, lower static contact and ground connection movable touch knife；The one end for the second supporting insulator being laterally arranged is connected to pedestal
The end on the top of frame, the other end is connected with upper static contact；Support frame for insulator is fixed on the top of installing base frame, insulator
Support frame is fixedly connected with the first supporting insulator far from the end of installing base frame, and the end of the first supporting insulator is connected with out
Line busbar；Outgoing line busbar is connected to upper static contact, while outgoing line busbar is connected with the input terminal of traction rectifier transformer；Keep apart
Close the middle part that shaft is set to bedframe；Insulating driving rod is set to the lower section of the second supporting insulator, one end of insulating driving rod
It is hinged to one end of the first connecting lever, the other end of the first connecting lever is fixedly connected with disconnecting switch shaft；Insulating driving rod it is another
End is hinged to the middle part of isolation movable touch knife, and one end that movable touch knife is isolated and one end of third supporting insulator are hinged, third support
Insulator is horizontally set at the lower section of insulating driving rod and the other end of third supporting insulator is connected to bedframe；Lower stationary contact
Head is set to the end of the one end of third supporting insulator far from bedframe；Ground switch rotating shaft is set to the bottom of bedframe,
The one end for the ground connection movable touch knife connecting with ground protection line is fixedly connected with ground switch rotating shaft；
4th supporting insulator is fixed in the installing base frame of dynamic touching switch lower section, and the 4th supporting insulator is far from installation base
The end of frame is connected with incoming-line busbar, and incoming-line busbar is connected to lower static contact, the output end phase of lower static contact and high-voltage feedback power cabinet
Even；
Pull rod fixed frame is set between installing base frame and motor-operating mechanism case, including fixed bottom plate and is set on the bottom plate
Support ring；Disconnecting switch shaft and ground switch rotating shaft pass through support ring and are only capable of rotating in support ring；
The motor-operating mechanism case is used to provide the power of rotation to disconnecting switch shaft and ground switch rotating shaft.
According to above scheme, the motor-operating mechanism case includes cabinet, and disconnecting switch motor-operating mechanism and ground connection are opened
Powered-down pneumatic operating mechanism is mounted on box house one on the other；Disconnecting switch motor-operating mechanism and earthing switch electric operating
The structure of mechanism is identical, only exports rotation torque；
The output shaft of disconnecting switch motor-operating mechanism passes through isolating switch mechanism connecting lever and the one of disconnecting switch drive rod
The other end of end connection, disconnecting switch drive rod is connected to one end of disconnecting switch shaft by disconnecting switch connecting lever to drive
The rotation of disconnecting switch shaft；The output shaft of earthing switch electrical operating mechanism is passed by earthing switch mechanism connecting lever and earthing switch
One end of lever connects, and the other end of earthing switch drive rod is connected to one end of ground switch rotating shaft by earthing switch connecting lever
To drive ground switch rotating shaft to rotate.
According to above scheme, the 4th supporting insulator is connected with voltage sensor far from the end of installing base frame；Into
Line busbar is connected in the 4th supporting insulator by voltage sensor.
Keep apart compared with prior art, the utility model has the beneficial effects that can be driven by motor-operating mechanism case
Shaft and ground switch rotating shaft rotation are closed, to realize the divide-shut brake of disconnecting switch and earthing switch, and then realizes traction rectifier
The power transmission and power failure and the connection and dismounting of input terminal power circuit protective ground wire of transformer inputs power supply.
Detailed description of the invention
Fig. 1 is the positive structure diagram of the utility model；
Fig. 2 is the left view structural representation of the utility model；
Fig. 3 is the enlarged structure schematic diagram that touching switch is moved in this Fig. 2；
Fig. 4 is the positive structure diagram of motor-operating mechanism case in the utility model；
Fig. 5 is the left view structural representation of motor-operating mechanism case in the utility model；
Fig. 6 is the facing structure for keeping apart powered-down pneumatic operating mechanism or earthing switch electrical operating mechanism in the utility model
Schematic diagram；
Fig. 7 is the left view structure for keeping apart powered-down pneumatic operating mechanism or earthing switch electrical operating mechanism in the utility model
Schematic diagram.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing, the paraphrase of each label in figure
Are as follows: earthing or grounding means, 2- installing base frame, 3- pull rod fixed frame, 4- motor-operating mechanism case, the transmission of 5- earthing switch is isolated in tri- pole 1-
Bar, 6- disconnecting switch drive rod, 7- earthing switch connecting lever, 8- disconnecting switch connecting lever, 9- isolating switch mechanism connecting lever, 10- ground connection
Switching mechanism connecting lever, 11- outgoing line busbar, 12- incoming-line busbar, 13- voltage sensor, the first supporting insulator of 14-, 15- insulation
Sub- support frame, 16- ground switch rotating shaft, 17- disconnecting switch shaft, 18- industrial connector, 19- divide-shut brake display window, 20- hand
Dynamic model formula socket, 21- mode change lever, 22- shell, 23- output shaft, 1a- bedframe, the second supporting insulator of 1b-,
Movable touch knife is isolated in 1c- upper static contact, 1d- insulating driving rod, 1e-, and 1g- is grounded movable touch knife, 1h- lower static contact, the support of 1k- third
Insulator, 4a- cabinet, 4b- earthing switch electrical operating mechanism, 4c- disconnecting switch motor-operating mechanism.
The utility model is mounted on the three-phase power input end of traction rectifier transformer, voltage rating 35KV, specified electricity
Stream is 1250A.The utility model includes installing base frame 2, and three poles isolation earthing or grounding means 1 is connected to the middle part of installing base frame 2, electronic
Operating mechanism box 4 is set to the side of installing base frame 2.
Installing base frame 2 is the installation foundation of whole device, it passes through cutting, drilling, welding, table by metal channel steel and angle steel
It does preservative treatment and forms in face.Installing base frame 2 is used for bolted through-hole equipped with multiple, to keep itself and ground and wall firm
Guan County's dress, makes it have enough mechanical support intensity.
Three poles isolation earthing or grounding means 1 is the key components and parts of the utility model, it mainly completes traction rectifier transformer electricity
The electrical connection of source input terminal 35KV three-phase circuit and electrical disjunction isolation, and traction rectifier during repair and maintenance
The protective ground wire of the input terminal primary circuit of transformer is attached and removed from.
Three poles isolation earthing or grounding means 1 includes the bedframe 1a for being bolted to 2 middle part of installing base frame, bedframe
It is set side by side on 1a there are three dynamic touching switch, the wherein phase that each dynamic touching switch is correspondingly connected in three phase mains.Dynamic touching is opened
Close includes the second supporting insulator 1b, upper static contact 1c, the first connecting lever, insulating driving rod 1d, isolation movable touch knife 1e, lower static contact
1h, third supporting insulator 1k and ground connection movable touch knife 1g.Ground switch rotating shaft 16 and disconnecting switch shaft 17 simultaneously with three
Dynamic touching switch connects, so that the opening and closing movements of three dynamic touching switches are realized unanimously.
The one end for the second supporting insulator 1b being laterally arranged is connected to the top of bedframe 1a, and the end of the other end connects
It is connected to upper static contact 1c.Support frame for insulator 15 is fixed on the top of installing base frame 2, and support frame for insulator 15 is far from installing base frame
2 end is fixedly connected with the first supporting insulator 14, and the end of the first supporting insulator 14 is connected with outgoing line busbar 11.Outlet
Busbar 11 is connected to upper static contact 1c, while outgoing line busbar 11 is inputted through the 35KV of cable or copper bar and traction rectifier transformer
End is connected, it need to meet voltage rating 35KV, the electrical performance demands of rated current 1250A.Support frame for insulator 15 is for being
Outgoing line busbar 11 provides enough support strengths.Disconnecting switch shaft 17 is set to the middle part of bedframe 1a；Insulating driving rod 1d
Set on the lower section of the second supporting insulator 1b, one end is hinged to one end of the first connecting lever, the other end of the first connecting lever be isolated
Switch shaft 17 is fixedly connected；The other end of insulating driving rod 1d is hinged to the middle part of isolation movable touch knife 1e, and movable touch knife 1e is isolated
One end and third supporting insulator 1k one end it is hinged, third supporting insulator 1k is horizontally set under insulating driving rod 1d
The other end of side and third supporting insulator 1k are connected to bedframe 1a.It is remote that lower static contact 1h is set to third supporting insulator 1k
The end of one end from bedframe 1a.Ground switch rotating shaft 16 is set to the bottom of bedframe 1a, connect with ground protection line
One end of ground connection movable touch knife 1g be fixedly connected with ground switch rotating shaft 16.
4th supporting insulator is fixed in the installing base frame 2 of dynamic touching switch lower section, and the 4th supporting insulator is far from installation
The end of pedestal 2 is connected with voltage sensor 13 and incoming-line busbar 12 in turn, and incoming-line busbar 12 is connected to lower static contact 1h, under it is quiet
Contact 1h is connected through 35KV high-tension cable with the 35KV output end of 35KV high-voltage feedback power cabinet, it need to meet voltage rating 35KV, volume
The electrical performance demands of constant current 1250A.Voltage sensor 13 casts in the 4th supports insulative by high-voltage capacitance formula voltage component
Whether the inside of son, have electricity to be sampled the primary circuit 35KV, it need to meet the insulating requirements of exchange 35KV voltage class.
Upper static contact 1c, lower static contact 1h and rotatable isolation movable touch knife 1e form disconnecting switch, complete traction rectifier
The disjunction isolation and connectivity capabilities of Three-Phase Transformer input terminal power circuit, its voltage rating is 35KV, and rated current is
1250A.The rotation of disconnecting switch shaft 17 drives the rotation of the first connecting lever, and then drives isolation movable touch knife by insulating driving rod 1d
1e is moved upwards to be contacted with upper static contact 1c, to realize the connection of power supply；Rotating backward for disconnecting switch shaft 17 can make
Isolation movable touch knife 1e and upper static contact 1c is disengaged, to realize the disconnection of power supply.
Lower static contact 1h and rotatable ground connection movable touch knife 1g form earthing switch, and it is defeated to complete traction rectifier transformer three-phase
The protective ground wire of outlet power circuit is attached and removed from function, its earth current >=16KA/2S in short-term.Earthing switch turns
The rotation of axis 16 drives ground connection movable touch knife 1g to move upwards and contacts with lower static contact 1h, to realize the combined floodgate of protective ground wire；
16 counter motion of ground switch rotating shaft can be such that ground connection movable touch knife 1g and lower static contact 1h disengages, to realize protective grounding
The dismounting of line.
Bedframe 1a is clipped by metal material, bending, punching press, drills, is welded, and preservative treatment is done on surface.
Second supporting insulator 1b, third supporting insulator 1k and insulating driving rod 1d are cast by epoxy resin,
They will meet the electric insulation requirement of 35KV voltage class, i.e. electric clearance >=300mm, creep distance >=700mm.
Upper static contact 1c, isolation movable touch knife 1e and ground connection movable touch knife 1g by metallic copper material through casting, turnning and milling, drilling,
The processes processing and fabricating such as silver-plated forms, and the conduction that they need to meet three pole 35KV isolation earthing or grounding means rated current AC1250A is cut
The requirement of area.
Disconnecting switch shaft 17 and ground switch rotating shaft 16 by round steel through turnning and milling, it is quenched, zinc-plated be made, they point
Not Wei disconnecting switch and earthing switch rotation metal shaft, they require enough mechanical strengths and corresponding toughness.
Pull rod fixed frame 3 is set between installing base frame 2 and motor-operating mechanism case 4, by metal channel steel and angle steel by cutting
Cut, drill, welding, surface is done preservative treatment and is formed, it is that disconnecting switch shaft 17 and ground switch rotating shaft 16 exist in order to prevent
Occur loosening torsional deformation and setting when in movement by the pulling force of earthing switch drive rod 5 and disconnecting switch drive rod 6.Pull rod
Fixed frame 3 includes bottom plate and support ring.On the one hand bottom plate is bolted with installing base frame 2, on the other hand pass through spiral shell
Bolt is fixed on wall, prevents three poles isolation earthing or grounding means 1 from occurring to loosen, distort or deform during divide-shut brake.Support ring
It is fixedly connected on bottom plate, is used to support being freely rotated for disconnecting switch shaft 17 and ground switch rotating shaft 16.Disconnecting switch turns
Axis 17 and ground switch rotating shaft 16 pass through support ring and are only capable of rotating in support ring.
Motor-operating mechanism case 4 is the key equipment of the utility model, it is isolated earthing or grounding means 1 for three poles and provides divide-shut brake
Power, it is mainly made of cabinet 4a, disconnecting switch motor-operating mechanism 4b and earthing switch electrical operating mechanism 4c.
Cabinet 4a is clipped by metal foil, bending, drilling, welding, surface are formed as preservative treatment, and interior welds have vertical
Column and installation attachment.Disconnecting switch motor-operating mechanism 4c and earthing switch electrical operating mechanism 4b are mounted on case one on the other
Inside body 4a.The bottom cabinet 4a offers control cable incoming-outgoing mouth, and accessory power supply is connected through exporting with other control equipment.Cabinet
The bottom and side of 4a is provided with bolt mounting holes, and entire cabinet 4a is fixed by bolt and wall and ground firm installation, in this way
Ensure that motor-operating mechanism case 4 withstands the pulling force that three poles isolation earthing or grounding means 1 generates during divide-shut brake.
Disconnecting switch motor-operating mechanism 4c is identical with the structure of earthing switch electrical operating mechanism 4b, is that this is practical
Novel power producer, it is by the rotary motion of motor, is three through turbine mechanism change direction and moment amplification, then through drive rod
The divide-shut brake that earthing or grounding means 1 is isolated in pole provides power and torque, and the disconnecting switch and ground connection for completing three poles isolation earthing or grounding means 1 are opened
The separating brake and combined floodgate of pass.Its accessory power supply has AC220V and DC220V/110V.It has electric operating mode and emergency behaviour manually
Operation mode.It is mainly by industrial connector 18, divide-shut brake display window 19, shell 22, output shaft 23, manual mode socket 20 and mould
Formula fills the equal composition of hand-off handle 21.Wherein, shell 22 is handled by aluminum profile through drilling, milling, surface anticorrosion, it is to motor
Structure carries out shell protection.The accessory power supply of motor drive mechanism is communicated with the outside through industrial connector 18.Divide-shut brake display window 19 can be with
Observe the real-time status of motor drive mechanism.Mode change lever 21 is used for the Unscrew manual mode socket when meeting an urgent need manual operation
20, to carry out manual divide-shut brake with Manual operation handle insertion.Output shaft 23 is the output end of the turning moment of motor drive mechanism.
Wherein, the output shaft of disconnecting switch motor-operating mechanism 4c passes through isolating switch mechanism connecting lever 9 and the one of disconnecting switch drive rod 6
End connection, the other end of disconnecting switch drive rod 6 by disconnecting switch connecting lever 8 be connected to one end of disconnecting switch shaft 17 to
Disconnecting switch shaft 17 is driven to rotate；The output shaft of earthing switch electrical operating mechanism 4b by earthing switch mechanism connecting lever 10 with
One end of earthing switch drive rod 5 connects, and the other end of earthing switch drive rod 5 is connected to ground connection by earthing switch connecting lever 7
One end of switch shaft 16 is to drive ground switch rotating shaft 16 to rotate.
Disconnecting switch drive rod 6 by metal circular tube through cutting, welding, zinc-plated form.It is with disconnecting switch connecting lever 8 and is isolated
The torque of motor drive mechanism in disconnecting switch motor-operating mechanism 4c is steadily passed to disconnecting switch by the cooperation of switching mechanism connecting lever 9
Breaking-closing operating is carried out, the initial position of disconnecting switch in its adjustable three pole isolation earthing or grounding means 1 of length is adjusted, with this
Guarantee the good contact of disconnecting switch.
Earthing switch drive rod 5 by metal circular tube through cutting, welding, zinc-plated form.It and earthing switch connecting lever 7 and ground connection
The torque of motor drive mechanism in earthing switch electrical operating mechanism 4b is steadily passed to ground connection and opened by the cooperation of switching mechanism connecting lever 10
It puts row breaking-closing operating into, adjusts the initial position of earthing switch in its adjustable three pole isolation earthing or grounding means 1 of length, with
Guarantee the good contact of earthing switch.
Earthing switch connecting lever 7 by metal material through cutting, drilling, it is zinc-plated form, it is fixed on ground switch rotating shaft 16
End adjusts the divide-shut brake stroke of earthing switch in its length adjustable three pole isolation earthing or grounding means 1, with meet three poles every
Divide-shut brake stroke from 1 earthing switch of earthing or grounding means is opened away from requiring.
Disconnecting switch connecting lever 8 by metal material through cutting, drilling, it is zinc-plated form, it is fixed on disconnecting switch shaft 17
End adjusts the divide-shut brake stroke of disconnecting switch in its length adjustable three pole isolation earthing or grounding means 1, with meet three poles every
Divide-shut brake stroke from 1 disconnecting switch of earthing or grounding means is opened away from requiring.
Isolating switch mechanism connecting lever 9 by metal material through cutting, drilling, it is zinc-plated form, it is electronic that it is fixed on disconnecting switch
The end of operating mechanism 4c output shaft adjusts the divide-shut brake stroke of its adjustable disconnecting switch of length and changes disconnecting switch
The size of motor-operating mechanism 4c output shaft torque, the need of the divide-shut brake to meet three poles isolation, 1 disconnecting switch of earthing or grounding means
It wants.
Earthing switch mechanism connecting lever 10 by metal material through cutting, drilling, it is zinc-plated form, it is electronic that it is fixed on earthing switch
The end of operating mechanism 4b output shaft adjusts the divide-shut brake stroke of its adjustable earthing switch of length and changes earthing switch
The size of motor-operating mechanism 4b output shaft torque, the need of the divide-shut brake to meet three poles isolation, 1 earthing switch of earthing or grounding means
It wants.
First supporting insulator 14, the second supporting insulator 1b, third supporting insulator 1k and the 4th supporting insulator are equal
It is cast by epoxy resin, they carry out insulating supporting to 35KV primary circuit element and meet insulating requirements, they need to meet
Exchange the insulating requirements of 35KV voltage class.
Claims (3)
1. earthed system is isolated in a kind of three pole traction rectifier transformers, it is characterised in that: including installing base frame (2)；The isolation of three poles
Earthing or grounding means (1) is connected to the middle part of installing base frame (2), and motor-operating mechanism case (4) is set to the side of installing base frame (2)；
Three pole isolation earthing or grounding means (1) includes the bedframe (1a) being connected in the middle part of installing base frame (2), bedframe
It is set side by side on (1a) there are three dynamic touching switch, the wherein phase that each dynamic touching switch is correspondingly connected in three phase mains；Dynamic touching
Switch includes upper static contact (1c), isolation movable touch knife (1e), lower static contact (1h) and ground connection movable touch knife (1g)；Be laterally arranged
One end of two supporting insulators (1b) is connected to the top of bedframe (1a), and the end of the other end is connected with upper static contact
(1c)；Support frame for insulator (15) is fixed on the top of installing base frame (2), and support frame for insulator (15) is far from installing base frame (2)
End be fixedly connected with the first supporting insulator (14), the end of the first supporting insulator (14) is connected with outgoing line busbar
(11)；Outgoing line busbar (11) is connected to upper static contact (1c), while the input terminal of outgoing line busbar (11) and traction rectifier transformer
It is connected；Disconnecting switch shaft (17) is set to the middle part of bedframe (1a)；Insulating driving rod (1d) is set to the second supporting insulator
The lower section of (1b), one end of insulating driving rod (1d) are hinged to one end of the first connecting lever, the other end of the first connecting lever with keep apart
Shaft (17) are closed to be fixedly connected；The other end of insulating driving rod (1d) is hinged to the middle part of isolation movable touch knife (1e), and dynamic touching is isolated
One end of knife (1e) and one end of third supporting insulator (1k) are hinged, and third supporting insulator (1k) is horizontally set at insulation and passes
The lower section of lever (1d) and the other end of third supporting insulator (1k) is connected to bedframe (1a)；Lower static contact (1h) is set to
The end of the one end of third supporting insulator (1k) far from bedframe (1a)；Ground switch rotating shaft (16) is set to bedframe
One end of the bottom of (1a), the ground connection movable touch knife (1g) connecting with ground protection line is fixedly connected with ground switch rotating shaft (16)；
4th supporting insulator is fixed in the installing base frame (2) of dynamic touching switch lower section, and the 4th supporting insulator is far from installation base
The end of frame (2) is connected with incoming-line busbar (12), and incoming-line busbar (12) is connected to lower static contact (1h), lower static contact (1h) and height
The output end of voltage feed cabinet is connected；
Pull rod fixed frame (3) is set between installing base frame (2) and motor-operating mechanism case (4), including fixed bottom plate and is set to
Support ring on bottom plate；Disconnecting switch shaft (17) and ground switch rotating shaft (16) pass through support ring and are only capable of making in support ring
Rotational motion；
The motor-operating mechanism case (4) is used to provide rotation to disconnecting switch shaft (17) and ground switch rotating shaft (16) and move
Power.
2. earthed system is isolated in a kind of three pole traction rectifier transformer according to claim 1, it is characterised in that: the electricity
Pneumatic operating mechanism case (4) includes cabinet (4a), disconnecting switch motor-operating mechanism (4c) and earthing switch electrical operating mechanism
It is internal that (4b) is mounted on cabinet (4a) one on the other；Disconnecting switch motor-operating mechanism (4c) and earthing switch electric operating machine
The structure of structure (4b) is identical, only exports rotation torque；
The output shaft of disconnecting switch motor-operating mechanism (4c) passes through isolating switch mechanism connecting lever (9) and disconnecting switch drive rod
(6) one end connection, the other end of disconnecting switch drive rod (6) are connected to disconnecting switch shaft by disconnecting switch connecting lever (8)
(17) one end is to drive disconnecting switch shaft (17) to rotate；The output shaft of earthing switch electrical operating mechanism (4b) is by connecing
Ground switching mechanism connecting lever (10) is connect with one end of earthing switch drive rod (5), and the other end of earthing switch drive rod (5) passes through
Earthing switch connecting lever (7) is connected to one end of ground switch rotating shaft (16) to drive ground switch rotating shaft (16) to rotate.
3. earthed system is isolated in a kind of three pole traction rectifier transformer according to claim 1, it is characterised in that: described the
Four supporting insulators are connected with voltage sensor (13) far from the end of installing base frame (2)；Incoming-line busbar (12) is passed by voltage
Sensor (13) is connected in the 4th supporting insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821084026.9U CN208460641U (en) | 2018-07-10 | 2018-07-10 | Earthed system is isolated in three pole traction rectifier transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821084026.9U CN208460641U (en) | 2018-07-10 | 2018-07-10 | Earthed system is isolated in three pole traction rectifier transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208460641U true CN208460641U (en) | 2019-02-01 |
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ID=65171954
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821084026.9U Active CN208460641U (en) | 2018-07-10 | 2018-07-10 | Earthed system is isolated in three pole traction rectifier transformers |
Country Status (1)
| Country | Link |
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| CN (1) | CN208460641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497940A (en) * | 2019-08-20 | 2019-11-26 | 上海地铁维护保障有限公司 | A kind of electricity passenger train vehicle maintenance activity alarming device and its alarming method for power |
-
2018
- 2018-07-10 CN CN201821084026.9U patent/CN208460641U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497940A (en) * | 2019-08-20 | 2019-11-26 | 上海地铁维护保障有限公司 | A kind of electricity passenger train vehicle maintenance activity alarming device and its alarming method for power |
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