CN108922817A - Earthed system is isolated in traction rectifier transformer - Google Patents

Earthed system is isolated in traction rectifier transformer Download PDF

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Publication number
CN108922817A
CN108922817A CN201810749026.4A CN201810749026A CN108922817A CN 108922817 A CN108922817 A CN 108922817A CN 201810749026 A CN201810749026 A CN 201810749026A CN 108922817 A CN108922817 A CN 108922817A
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CN
China
Prior art keywords
zgd1
zgd2
switch
earthing
operating mechanism
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.)
Pending
Application number
CN201810749026.4A
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Chinese (zh)
Inventor
葛铁军
黎兴源
耿星洁
胡钧
潘卫周
王斌
刘旦
高波
陈卓
贾志亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU ZHONGGONG ELECTRIC ENGINEERING Co Ltd
Operation General Headquarters Of Shenzhen Metro Group Co Ltd
Original Assignee
CHENGDU ZHONGGONG ELECTRIC ENGINEERING Co Ltd
Operation General Headquarters Of Shenzhen Metro Group Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by CHENGDU ZHONGGONG ELECTRIC ENGINEERING Co Ltd, Operation General Headquarters Of Shenzhen Metro Group Co Ltd filed Critical CHENGDU ZHONGGONG ELECTRIC ENGINEERING Co Ltd
Priority to CN201810749026.4A priority Critical patent/CN108922817A/en
Publication of CN108922817A publication Critical patent/CN108922817A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003Earthing switches

Abstract

The invention discloses a kind of traction rectifier transformers, and earthed system is isolated, including being set to the three pole traction rectifier transformers isolation earthed system of the three-phase power input end of traction rectifier transformer and the sextupole traction rectifier transformer isolation earthed system of the six phase power output ends set on traction rectifier transformer.The present invention can drive disconnecting switch shaft and ground switch rotating shaft to rotate by motor-operating mechanism case; to realize the divide-shut brake of disconnecting switch and earthing switch; and then realize the power transmission and power failure of traction rectifier transformer input terminal power supply and output end power; and the connection and dismounting of input terminal power supply and output end power circuit protection ground line, to guarantee the electrical safety of equipment and the life security of personnel;Real-time communication can also be realized by digital communication technology and remote control center simultaneously, complete the function of " distant place control ", and transmit real-time status of the invention and monitored in real time to central control room.

Description

Earthed system is isolated in traction rectifier transformer
Technical field
The present invention relates to the maintenance of urban track traffic tractive power supply system, and in particular to arrives a kind of traction rectifier transformer Earthed system is isolated.
Background technique
Currently, in urban track traffic DC1500V tractive power supply system, due to the working principle of traction rectifier transformer It is the input terminal that the 35KV three-phase alternating current power frequency supply that 35KV high-voltage feedback power cabinet is sent through cable is sent to traction rectifier transformer, The AC power frequency supply that two group of six phase AC1180V is exported through transformer winding transformation, then again through six roots of sensation cable transfer to direct current Rectifier cabinet carries out rectification output DC1500V DC power supply for various equipment in rail traffic operating system in DC rectifier cabinet Operation uses.So traction rectifier transformer is extremely important crucial in the tractive power supply system of rail traffic DC1500V sets It is standby.
The tractive power supply system of rail traffic DC1500V is country-level load, in order to guarantee the company of DC power-supply system Continuous property ﹑ stability and safety, for the key equipment " traction rectifier transformer " in system, each equipment management department is stringent Regular maintenance.Currently, people are implemented by following procedure during repair and maintenance:
1, it powers off
Then the breaker of disjunction 35KV feeder cabinet first is kept apart the input terminal of traction rectifier transformer by manpower It closes and output end disconnecting switch is each turned off.
2, hanging earthing conductor
After power failure, after confirming no electricity on inspection, by the manual hanging earthing conductor of manpower, by traction rectifier transformer Input terminal and output end primary circuit are 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, must not pay special attention in implementation process Destroy damage electric insulation.
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, should first close output end disconnecting switch and input terminal isolation respectively Switch, the breaker for then closing 35KV feeder cabinet again carry out power transmission.
7, after power transmission, after operator observes situation without exception, it could be formally passed through operation, complete repair and maintenance operation Process.
People are in multiple traction rectifier transformer repair and maintenance operating process, and gradually there are the following problems for discovery:
1, the input terminal disconnecting switch of traction rectifier transformer and the disconnecting switch of output end far apart, disjunction and are closed The relatively time-consuming trouble of disconnecting switch.
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 dismounting ground wire great work intensity, reliability Low, longevity of service efficiency is very low.And the contact quality of ground line can only determine that Reliability comparotive is poor with visually observing.
4, during the repair and maintenance of traction rectifier transformer, the field condition of personnel and the safety interlocking of equipment are real-time State cannot pass to a distant place and realize distant place real time monitoring;Meanwhile it can not be transported by distant place control centre direct control operation equipment Make.
Summary of the invention
The present invention provides a kind of traction rectifier transformers, and earthed system is isolated, to carry out to traction rectifier transformer The power transmission and power-off and input terminal power supply of realization traction rectifier transformer input terminal power supply and output end power when repair and maintenance The connection and dismounting being grounded with output end power circuit protection, to guarantee the electrical safety of equipment and the life security of personnel.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of traction rectifier transformer isolation earthed system, the three-phase power input end including being set to traction rectifier transformer Three pole traction rectifier transformers isolation earthed system and the sextupoles of the six phase power output ends set on traction rectifier transformer lead Draw rectifier transformer isolation earthed system;
It includes ZGD1 installing base frame that earthed system, which is isolated, in three pole traction rectifier transformer;Tri- pole ZGD1 isolation ground connection dress The middle part for being connected to ZGD1 installing base frame is set, ZGD1 motor-operating mechanism case is set to the side of ZGD1 installing base frame;
Tri- pole the ZGD1 isolation earthing or grounding means includes the ZGD1 bedframe being connected in the middle part of ZGD1 installing base frame, ZGD1 It sets to move there are three ZGD1 side by side on bedframe and touches switch, the dynamic touching of each ZGD1 switchs its being correspondingly connected in three phase mains In a phase;The dynamic touching switch of ZGD1 includes ZGD1 upper static contact, ZGD1 isolation movable touch knife, ZGD1 lower static contact and the dynamic touching of ZGD1 ground connection Knife;The one end for the second supporting insulator of ZGD1 being laterally arranged is connected to the top of ZGD1 bedframe, and the end of the other end connects It is connected to ZGD1 upper static contact;ZGD1 support frame for insulator is fixed on the top of ZGD1 installing base frame, and ZGD1 support frame for insulator is remote End from ZGD1 installing base frame is fixedly connected with the first supporting insulator of ZGD1, the end connection of the first supporting insulator of ZGD1 There is ZGD1 outgoing line busbar;ZGD1 outgoing line busbar is connected to ZGD1 upper static contact, while ZGD1 outgoing line busbar and traction rectifier transformation The input terminal of device is connected;ZGD1 disconnecting switch shaft is set to the middle part of ZGD1 bedframe;ZGD1 insulating driving rod is set to ZGD1 The lower section of second supporting insulator, one end of ZGD1 insulating driving rod are hinged to one end of the first connecting lever of ZGD1, and ZGD1 first is turned The other end of arm is fixedly connected with ZGD1 disconnecting switch shaft;The other end of ZGD1 insulating driving rod is hinged to the dynamic touching of ZGD1 isolation The middle part of knife, one end of ZGD1 isolation movable touch knife and one end of ZGD1 third supporting insulator are hinged, ZGD1 third supports insulative Son is horizontally set at the lower section of ZGD1 insulating driving rod and the other end of ZGD1 third supporting insulator is connected to ZGD1 base frames Frame;ZGD1 lower static contact is set to the end of the one end of ZGD1 third supporting insulator far from ZGD1 bedframe;ZGD1 ground connection is opened The bottom that shaft is set to ZGD1 bedframe is closed, the one end for the ZGD1 ground connection movable touch knife connecting with ground protection line and ZGD1 are grounded Switch shaft is fixedly connected;
4th supporting insulator is fixed in the ZGD1 installing base frame of ZGD1 dynamic touching switch lower section, and the 4th supporting insulator is remote End from ZGD1 installing base frame is connected with ZGD1 incoming-line busbar, and ZGD1 incoming-line busbar is connected to ZGD1 lower static contact, under ZGD1 Static contact is connected with the output end of high-voltage feedback power cabinet;
ZGD1 pull rod fixed frame is set between ZGD1 installing base frame and ZGD1 motor-operating mechanism case, including fixed bottom plate With support ring set on the bottom plate;ZGD1 disconnecting switch shaft and ZGD1 ground switch rotating shaft pass through support ring and in support rings It is only capable of rotating;
The ZGD1 motor-operating mechanism case, which is used to provide ZGD1 disconnecting switch shaft and ZGD1 ground switch rotating shaft, to be turned Dynamic power;
The sextupole traction rectifier transformer isolation earthed system includes ZGD2 cabinet body;Six grades of isolation earthing or grounding means of ZGD2 are set In the lower part of ZGD2 interior of the cabinet, ZGD2 motor-operating mechanism case is set to the top of ZGD2 interior of the cabinet;
Six grades of isolation earthing or grounding means of the ZGD2 include the ZGD2 bedframe connecting with ZGD2 cabinet body, ZGD2 bedframe On set side by side there are six the dynamic touching switch of ZGD2, the dynamic touching switch of each ZGD2 is correspondingly connected with to the wherein phase in six phase power supplys; The dynamic touching switch of the ZGD2 includes that ZGD2 upper static contact, ZGD2 isolation movable touch knife, ZGD2 lower static contact and ZGD2 are grounded movable touch knife; The one end for the second supporting insulator of ZGD2 being laterally arranged is connected to the top of ZGD2 bedframe, and the end of the other end is connected with ZGD2 upper static contact;ZGD2 disconnecting switch shaft is set to the middle part of ZGD2 bedframe;ZGD2 spacer bar is set to ZGD2 second The lower section of insulator is supportted, one end is hinged to one end of the first connecting lever of ZGD2, and the other end of the first connecting lever of ZGD2 is isolated with ZGD2 Switch shaft is fixedly connected;The other end of ZGD2 spacer bar is hinged to the middle part of ZGD2 isolation movable touch knife, and movable touch knife is isolated in ZGD2 One end and ZGD2 third supporting insulator one end it is hinged, ZGD2 third supporting insulator is horizontally set at ZGD2 spacer bar The other end of lower section and ZGD2 third supporting insulator is connected to ZGD2 bedframe;ZGD2 lower static contact is set to ZGD2 third branch Support the end of the one end of insulator far from ZGD2 bedframe;ZGD2 ground switch rotating shaft is set to the bottom of ZGD2 bedframe, The one end for the ZGD2 ground connection movable touch knife connecting with ground protection line is fixedly connected with ZGD2 ground switch rotating shaft;
The first supporting insulator of ZGD2 is fixed on the ZGD2 cabinet body of ZGD2 dynamic touching switch lower section, the first supports insulative of ZGD2 Son is connected with ZGD2 outgoing line busbar far from the end of ZGD2 cabinet body, and ZGD2 outgoing line busbar is connected to ZGD2 lower static contact, simultaneously ZGD2 outgoing line busbar is connected with the input terminal of DC rectifier cabinet;
ZGD2 incoming-line busbar is fixed in ZGD2 cabinet body by ZGD2 voltage sensor, and ZGD2 incoming-line busbar is connected to ZGD2 Upper static contact, while ZGD2 incoming-line busbar is connected with the output end of six phase power supplys of traction rectifier transformer;
The ZGD2 motor-operating mechanism case, which is used to provide ZGD2 disconnecting switch shaft and ZGD2 ground switch rotating shaft, to be turned Dynamic power.
According to above scheme, the ZGD1 motor-operating mechanism case includes ZGD1 cabinet, ZGD1 disconnecting switch electric operating Mechanism and ZGD1 earthing switch electrical operating mechanism are mounted on ZGD1 box house one on the other;The electronic behaviour of ZGD1 disconnecting switch It is identical with the structure of ZGD1 earthing switch electrical operating mechanism to make mechanism, only exports rotation torque;
The output shaft of ZGD1 disconnecting switch motor-operating mechanism is kept apart by ZGD1 isolating switch mechanism connecting lever with ZGD1 Close one end connection of drive rod, the other end of ZGD1 disconnecting switch drive rod by ZGD1 disconnecting switch connecting lever be connected to ZGD1 every One end from switch shaft is to drive ZGD1 disconnecting switch shaft to rotate;The output shaft of ZGD1 earthing switch electrical operating mechanism Connect by ZGD1 earthing switch mechanism connecting lever with one end of ZGD1 earthing switch drive rod, ZGD1 earthing switch drive rod it is another One end is connected to one end of ZGD1 ground switch rotating shaft by ZGD1 earthing switch connecting lever to drive ZGD1 ground switch rotating shaft Rotation.
According to above scheme, the 4th supporting insulator is connected with ZGD1 voltage far from the end of ZGD1 installing base frame and passes Sensor;ZGD1 incoming-line busbar is connected in the 4th supporting insulator by ZGD1 voltage sensor.
According to above scheme, the ZGD2 motor-operating mechanism case includes that the ZGD2 ground connection being mounted in it one on the other is opened Powered-down pneumatic operating mechanism and ZGD2 disconnecting switch motor-operating mechanism;ZGD2 earthing switch electrical operating mechanism and ZGD2 keep apart The structure of powered-down pneumatic operating mechanism is identical, only exports rotation torque;
The output shaft of ZGD2 earthing switch electrical operating mechanism is connect with one end of ZGD2 earthing switch transmission shaft, and ZGD2 connects The other end of ground switch transmission shaft is connect by earthing switch mechanism connecting lever with one end of ZGD2 earthing switch pull rod, ZGD2 ground connection The other end of switch lever is connected to one end of ZGD2 ground switch rotating shaft by ZGD2 earthing switch connecting lever to drive ZGD2 Ground switch rotating shaft rotation;The output shaft of ZGD2 disconnecting switch motor-operating mechanism and one end of ZGD2 disconnecting switch transmission shaft connect It connects, the other end of ZGD2 disconnecting switch transmission shaft is connected by one end of isolating switch mechanism connecting lever and ZGD2 disconnecting switch pull rod Connect, the other end of ZGD2 disconnecting switch pull rod by ZGD2 disconnecting switch connecting lever be connected to one end of ZGD2 disconnecting switch shaft from And ZGD2 disconnecting switch shaft is driven to rotate.
Further, the ZGD2 motor-operating mechanism case is additionally provided with can realize remote status prison by digital communication technology Depending on and control tri- pole ZGD1 isolation six grades of isolation earthing or grounding means breaking-closing operatings of earthing or grounding means and ZGD2 ZGD2 instrument control plane Plate.
Compared with prior art, the beneficial effects of the invention are as follows:Disconnecting switch can be driven to turn by motor-operating mechanism case Axis and ground switch rotating shaft rotation, to realize the divide-shut brake of disconnecting switch and earthing switch, and then realize traction rectifier transformation The power transmission and power failure and input terminal power supply and output end power circuit protection of device input terminal power supply and output end power are grounded Connection and dismounting, to guarantee the electrical safety of equipment and the life security of personnel;Simultaneously can also by digital communication technology with Real-time communication is realized at remote control center, completes the function of " distant place control ", and is transmitted real-time status of the invention and controlled to center Room processed is monitored in real time.
Detailed description of the invention
Fig. 1 is the mounting structure schematic diagram between the present invention and traction rectifier transformer;
Fig. 2 is the positive structure diagram that earthed system is isolated in three pole traction rectifier transformers;
Fig. 3 is the left view structural representation of Fig. 2;
Fig. 4 is the enlarged structure schematic diagram for the dynamic touching switch of ZGD1 that three pole traction rectifier transformers are isolated in earthed system;
Fig. 5 is that the facing structure for the ZGD1 motor-operating mechanism case that three pole traction rectifier transformers are isolated in earthed system is shown It is intended to;
Fig. 6 is the left view structural representation of Fig. 5;
Fig. 7 is that ZGD1 disconnecting switch motor-operating mechanism or ZGD1 connect in three pole traction rectifier transformers isolation earthed system The positive structure diagram of ground switch on/off electric operating mechanism;
Fig. 8 is the left view structural representation of Fig. 7.
Fig. 9 is the positive structure diagram that earthed system is isolated in sextupole traction rectifier transformer;
Figure 10 is the left view structural representation of Fig. 9;
Figure 11 is the positive structure diagram that ZGD2 cabinet body in earthed system is isolated in sextupole traction rectifier transformer;
Figure 12 is the left view structural representation of Figure 11;
Figure 13 is the structural representation that sextupole traction rectifier transformer is isolated that earthing or grounding means is isolated in ZGD2 sextupole in earthed system Figure;
Figure 14 is the left view structural representation of Figure 13, is also acted as in sextupole traction rectifier transformer isolation earthed system The structural schematic diagram of the dynamic touching switch of ZGD2;
Figure 15 is that ZGD2 earthing switch electrical operating mechanism or ZGD2 in earthed system is isolated in sextupole traction rectifier transformer The positive structure diagram of disconnecting switch motor-operating mechanism;
Figure 16 is the left view structural representation of Figure 15;
Figure 17 is the structural schematic diagram that ZGD2 instrument control panel in earthed system is isolated in sextupole traction rectifier transformer.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing, and each label is interpreted as in figure:10- Earthed system is isolated in three pole traction rectifier transformers, and earthed system, 30- traction rectifier is isolated in 20- sextupole traction rectifier transformer Earthing or grounding means, 102-ZGD1 installing base frame, 103-ZGD1 pull rod fixed frame, 104-ZGD1 is isolated in transformer, tri- pole 101-ZGD1 Motor-operating mechanism case, 105-ZGD1 earthing switch drive rod, 106-ZGD1 disconnecting switch drive rod, 107-ZGD1 earthing switch Connecting lever, 108-ZGD1 disconnecting switch connecting lever, 109-ZGD1 isolating switch mechanism connecting lever, 1010-ZGD1 earthing switch mechanism connecting lever, 1011-ZGD1 outgoing line busbar, 1012-ZGD1 incoming-line busbar, 1013-ZGD1 voltage sensor, the first supports insulative of 1014-ZGD1 Son, 1015-ZGD1 support frame for insulator, 1016-ZGD1 ground switch rotating shaft, 1017-ZGD1 disconnecting switch shaft, 1018- ZGD1 industrial connector, 1019-ZGD1 divide-shut brake display window, 1020-ZGD1 manual mode socket, the conversion of 1021-ZGD1 mode Handle, 1022-ZGD1 shell, 1023-ZGD1 output shaft, 101a-ZGD1 bedframe, the second supporting insulator of 101b-ZGD1, Movable touch knife, the dynamic touching of 101g-ZGD1 ground connection is isolated in 101c-ZGD1 upper static contact, 101d-ZGD1 insulating driving rod, 101e-ZGD1 Knife, 101h-ZGD1 lower static contact, 101k-ZGD1 third supporting insulator, 104a-ZGD1 cabinet, 104b-ZGD1 earthing switch Motor-operating mechanism, 104c-ZGD1 disconnecting switch motor-operating mechanism, 201-ZGD2 cabinet body, 202-ZGD2 sextupole isolation ground connection Device, 203-ZGD2 earthing switch electrical operating mechanism, 204-ZGD2 disconnecting switch motor-operating mechanism, 205-ZGD2 keep apart Close pull rod, 206-ZGD2 earthing switch pull rod, 207-ZGD2 instrument control panel, 208-ZGD2 disconnecting switch connecting lever, 209- ZGD2 earthing switch connecting lever, 2010-ZGD2 outgoing line busbar, 2011-ZGD2 incoming-line busbar, 2012-ZGD2 voltage sensor, The first supporting insulator of 2013-ZGD2,2014-ZGD2 earthing switch transmission shaft, 2015-ZGD2 disconnecting switch transmission shaft, 2016- ZGD2 inlet wire cable, 2017-ZGD2 outlet cable, 2018-ZGD2 industrial connector, 2019-ZGD2 divide-shut brake display window, 2020-ZGD2 manual mode socket, 2021-ZGD2 mode change lever, 2022-ZGD2 shell, 2023-ZGD2 output shaft, 201a-ZGD2 skeleton is visited before 201b-ZGD2, the preceding Xiamen 201c-ZGD2,201d-ZGD2 epipleural, on the downside of 201e-ZGD2 Plate, 201f-ZGD2 brows, 201g-ZGD2 hanging ring, 202a-ZGD2 bedframe, 202b-ZGD2 disconnecting switch shaft, 202c- ZGD2 ground switch rotating shaft, 202d-ZGD2 upper static contact, the second supporting insulator of 202e-ZGD2, the first connecting lever of 202f-ZGD2, Movable touch knife, 202j-ZGD2 lower static contact is isolated in 202g-ZGD2 spacer bar, 202h-ZGD2, and 202k-ZGD2 is grounded movable touch knife, 202m-ZGD2 third supporting insulator, 207a-ZGD2 instrument face plate, 207b-ZGD2 output end electrification display, 207c-ZGD2 Input terminal electrification display, 207d-ZGD2 hinge, 207e-ZGD2 intelligent comprehensive measure and control device, the conversion of 207f-ZGD2 mode are opened It closes, 207g-ZGD2 illuminates accessory power supply switch, 207h-ZGD2 disconnecting switch divide-shut brake display lamp, 207i-ZGD2 earthing switch Divide-shut brake indicator light, tri- pole general supply control switch of 207j-ZGD2,207k-ZGD2 disconnecting switch divide-shut brake display lamp, 207m- ZGD2 earthing switch divide-shut brake display lamp, 207n-ZGD2 sextupole general supply control switch.
The present invention includes that three pole traction rectifier transformers isolation earthed system 10 and the isolation of sextupole traction rectifier transformer connect Ground system 20.Three pole traction rectifier transformers isolation earthed system 10 is mounted on the three phase mains input of traction rectifier transformer 30 End, voltage rating 35KV, rated current 1250A, it is used for when carrying out repair and maintenance to traction rectifier transformer 30 Realize the power transmission and power-off and the connection of input terminal power circuit protective ground wire of 30 input terminal power supply of traction rectifier transformer With dismounting.Sextupole traction rectifier transformer isolation earthed system 20 is mounted on the six phase power supplys output of traction rectifier transformer 30 End, voltage rating AC1180V, rated current 2000A, it is used to carry out repair and maintenance to traction rectifier transformer 30 The company that the power transmission of 30 output end power of Shi Shixian traction rectifier transformer and power-off and output end power circuit protection are grounded It connects and removes;It also has the function of digital communication simultaneously, 10 He of earthed system can be isolated to three pole traction rectifier transformers simultaneously Sextupole traction rectifier transformer is isolated earthed system 20 and realizes that remote status monitoring and control isolation earthing or grounding means carry out divide-shut brake Operation.
It includes ZGD1 installing base frame 102, tri- pole ZGD1 isolation ground connection that earthed system 10, which is isolated, in three pole traction rectifier transformers Device 101 is connected to the middle part of ZGD1 installing base frame 102, and ZGD1 motor-operating mechanism case 104 is set to ZGD1 installing base frame 102 Side.
ZGD1 installing base frame 102 is the installation foundation of whole device, it by metal channel steel and angle steel by cutting, drilling, Welding, surface are done preservative treatment and are formed.ZGD1 installing base frame 102 is used for bolted through-hole equipped with multiple, to make it With ground and wall firm installation, enough mechanical support intensity is made it have.
Tri- pole ZGD1 isolation earthing or grounding means 101 is the key that three pole traction rectifier transformers are isolated earthed system 10 0 Part, it mainly complete 30 power input 35KV three-phase circuit of traction rectifier transformer electrical connection and electrical disjunction every From, and the connection of the protective ground wire of the input terminal primary circuit of traction rectifier transformer 30 and tear open during repair and maintenance It removes.
Tri- pole ZGD1 isolation earthing or grounding means 101 includes the bottom ZGD1 for being bolted to 102 middle part of ZGD1 installing base frame It is set side by side on seat frame 101a, ZGD1 bedframe 101a there are three the dynamic touching switch of ZGD1, the dynamic touching switch of each ZGD1 corresponds to The wherein phase being connected in three phase mains.The dynamic touching switch of ZGD1 includes the upper stationary contact of the second supporting insulator 101b, ZGD1 of ZGD1 Head 101c, ZGD1 the first connecting lever, ZGD1 insulating driving rod 101d, ZGD1 isolation movable touch knife 101e, ZGD1 lower static contact 101h, ZGD1 third supporting insulator 101k and ZGD1 are grounded movable touch knife 101g.ZGD1 ground switch rotating shaft 1016 and ZGD1 disconnecting switch Shaft 1017 is connected with the dynamic touching switch of three ZGD1 simultaneously, so that the opening and closing movement of the dynamic touching switch of three ZGD1 is realized unanimously.
The one end for the second supporting insulator of the ZGD1 101b being laterally arranged is connected to the top of ZGD1 bedframe 101a, separately The end of one end is connected with ZGD1 upper static contact 101c.ZGD1 support frame for insulator 1015 is fixed on ZGD1 installing base frame 102 Top, ZGD1 support frame for insulator 1015 are fixedly connected with the first supports insulative of ZGD1 far from the end of ZGD1 installing base frame 102 The end of the first supporting insulator of 1014, ZGD1 of son 1014 is connected with ZGD1 outgoing line busbar 1011.ZGD1 outgoing line busbar 1011 connects It is connected to ZGD1 upper static contact 101c, while ZGD1 outgoing line busbar 1011 is through cable or copper bar and traction rectifier transformer 30 35KV input terminal is connected, it need to meet voltage rating 35KV, the electrical performance demands of rated current 1250A.ZGD1 insulator branch Support 1015 is used to provide enough support strengths for ZGD1 outgoing line busbar 1011.ZGD1 disconnecting switch shaft 1017 is set to ZGD1 The middle part of bedframe 101a;ZGD1 insulating driving rod 101d is set to the lower section of the second supporting insulator of ZGD1 101b, one end It is hinged to one end of the first connecting lever of ZGD1, the other end of the first connecting lever of ZGD1 is fixedly connected with ZGD1 disconnecting switch shaft 1017; The other end of ZGD1 insulating driving rod 101d is hinged to the middle part of ZGD1 isolation movable touch knife 101e, and ZGD1 is isolated movable touch knife 101e's One end and one end of ZGD1 third supporting insulator 101k are hinged, and it is exhausted that ZGD1 third supporting insulator 101k is horizontally set at ZGD1 The lower section of the edge drive rod 101d and other end of ZGD1 third supporting insulator 101k is connected to ZGD1 bedframe 101a.ZGD1 Lower static contact 101h is set to the end of the one end of ZGD1 third supporting insulator 101k far from ZGD1 bedframe 101a.ZGD1 connects Ground switch shaft 1016 is set to the bottom of ZGD1 bedframe 101a, the ZGD1 ground connection movable touch knife 101g connecting with ground protection line One end be fixedly connected with ZGD1 ground switch rotating shaft 1016.
4th supporting insulator is fixed in the ZGD1 installing base frame 102 of ZGD1 dynamic touching switch lower section, the 4th supports insulative Son is connected with ZGD1 voltage sensor 1013 and ZGD1 incoming-line busbar 1012 in turn far from the end of ZGD1 installing base frame 102, ZGD1 incoming-line busbar 1012 is connected to ZGD1 lower static contact 101h, ZGD1 lower static contact 101h through 35KV high-tension cable and 35KV high The 35KV output end of voltage feed cabinet is connected, it need to meet voltage rating 35KV, the electrical performance demands of rated current 1250A. ZGD1 voltage sensor 1013 is cast in the inside of the 4th supporting insulator by high-voltage capacitance formula voltage component, is once returned to 35KV Whether road has electricity to be sampled, it need to meet the insulating requirements of exchange 35KV voltage class.
Movable touch knife 101e composition isolation is isolated in ZGD1 upper static contact 101c, ZGD1 lower static contact 101h and rotatable ZGD1 Switch completes the disjunction isolation and connectivity capabilities of 30 three-phase input end power circuit of traction rectifier transformer, its voltage rating For 35KV, rated current 1250A.The rotation of ZGD1 disconnecting switch shaft 1017 drives the rotation of the first connecting lever of ZGD1, Jin Ertong Crossing ZGD1 insulating driving rod 101d drives ZGD1 isolation movable touch knife 101e to move upwards and contact with ZGD1 upper static contact 101c, thus Realize the connection of power supply;Rotating backward for ZGD1 disconnecting switch shaft 1017 can make on ZGD1 isolation movable touch knife 101e and ZGD1 Static contact 101c is disengaged, to realize the disconnection of power supply.
ZGD1 lower static contact 101h and rotatable ZGD1 ground connection movable touch knife 101g forms earthing switch, completes traction rectifier The protective ground wire of 30 three-phase output end power circuit of transformer is attached and removed from function, and its earth current in short-term >= 16KA/2S.The rotation of ZGD1 ground switch rotating shaft 1016 drives ZGD1 ground connection movable touch knife 101g to move upwards and stationary contact under ZGD1 Head 101h contact, to realize the combined floodgate of protective ground wire;1016 counter motion of ZGD1 ground switch rotating shaft can be such that ZGD1 connects Ground movable touch knife 101g and ZGD1 lower static contact 101h is disengaged, to realize the dismounting of protective ground wire.
ZGD1 bedframe 101a is clipped by metal material, bending, punching press, drills, is welded, and surface is done at anti-corrosion Reason.
The second supporting insulator 101b, ZGD1 of ZGD1 third supporting insulator 101k and ZGD1 insulating driving rod 101d by Epoxy resin is cast, they will meet the electric insulation requirement of 35KV voltage class, i.e. electric clearance >=300mm, creep distance ≥700mm。
Movable touch knife 101e and ZGD1 ground connection movable touch knife 101g is isolated by metallic copper material in ZGD1 upper static contact 101c, ZGD1 It is formed through the processes processing and fabricating such as casting, turnning and milling, drilling, silver-plated, they need to meet the three pole 35KV isolation specified electricity of earthing or grounding means Flow the requirement of the conductive cross-sectional area of AC1250A.
ZGD1 disconnecting switch shaft 1017 and ZGD1 ground switch rotating shaft 1016 are by round steel through turnning and milling, quenched, zinc-plated system Form, they are respectively the rotation metal shaft of disconnecting switch and earthing switch, they require enough mechanical strengths and Corresponding toughness.
ZGD1 pull rod fixed frame 103 is set between ZGD1 installing base frame 102 and ZGD1 motor-operating mechanism case 104, by gold Belong to channel steel and angle steel to do preservative treatment by cutting, drilling, welding, surface and form, it is that ZGD1 disconnecting switch turns in order to prevent Axis 1017 and ZGD1 ground switch rotating shaft 1016 are passed by ZGD1 earthing switch drive rod 105 and ZGD1 disconnecting switch during exercise Occur loosening torsional deformation and setting when the pulling force of lever 106.ZGD1 pull rod fixed frame 103 includes bottom plate and support ring.Bottom plate On the one hand it is bolted with ZGD1 installing base frame 102, is on the other hand bolted on wall, prevents ZGD1 Three poles isolation earthing or grounding means 101 occurs to loosen, distort or deform during divide-shut brake.Support ring is fixedly connected on bottom plate, It is used to support being freely rotated for ZGD1 disconnecting switch shaft 1017 and ZGD1 ground switch rotating shaft 1016.ZGD1 disconnecting switch shaft 1017 and ZGD1 ground switch rotating shaft 1016 passes through support ring and is only capable of rotating in support ring.
ZGD1 motor-operating mechanism case 104 is the key equipment of three pole traction rectifier transformers isolation earthed system 10, it Earthing or grounding means 101 is isolated for tri- pole ZGD1, the power of divide-shut brake is provided, it is mainly by ZGD1 cabinet 104a, the electronic behaviour of disconnecting switch Make mechanism 4b and earthing switch electrical operating mechanism 4c composition.
ZGD1 cabinet 104a is clipped by metal foil, bending, drilling, welding, surface are formed as preservative treatment, inside weldering It is connected to column and installation attachment.ZGD1 disconnecting switch motor-operating mechanism 104c and ZGD1 earthing switch electrical operating mechanism 104b It is mounted on inside ZGD1 cabinet 104a one on the other.The bottom ZGD1 cabinet 104a offers control cable incoming-outgoing mouth, auxiliary electricity Source is connected through exporting with other control equipment.The bottom and side of ZGD1 cabinet 104a is provided with bolt mounting holes, entire ZGD1 case Body 104a is fixed by bolt and wall and ground firm installation, ensures that ZGD1 motor-operating mechanism case 104 is subjected in this way The pulling force that tri- pole ZGD1 isolation earthing or grounding means 101 generates during divide-shut brake must be lived.
The structure of ZGD1 disconnecting switch motor-operating mechanism 104c and ZGD1 earthing switch electrical operating mechanism 104b is complete It is identical, it is the power producer of three pole traction rectifier transformers isolation earthed system 10, it is by the rotary motion of motor, through turbine Structure changes direction and moment amplification, then the divide-shut brake that earthing or grounding means 101 is isolated for tri- pole ZGD1 through drive rod provides power and power Square completes the disconnecting switch of tri- pole ZGD1 isolation earthing or grounding means 101 and the separating brake and combined floodgate of earthing switch.Its accessory power supply has AC220V and DC220V/110V.It has electric operating mode and emergency manual operation mode.It is mainly by ZGD1 industrial connector 1018, ZGD1 divide-shut brake display window 1019, ZGD1 shell 1022, ZGD1 output shaft 1023,1020 and of ZGD1 manual mode socket Mode fills the equal composition of hand-off handle 21.Wherein, ZGD1 shell 1022 is handled by aluminum profile through drilling, milling, surface anticorrosion, it Shell protection is carried out to motor drive mechanism.The accessory power supply of motor drive mechanism is communicated with the outside through ZGD1 industrial connector 1018.ZGD1 Divide-shut brake display window 1019 can observe the real-time status of motor drive mechanism.ZGD1 mode change lever 1021 is used for manual in emergency Unscrew ZGD1 manual mode socket 1020 when operation, to carry out manual divide-shut brake with Manual operation handle insertion.ZGD1 Output shaft 1023 is the output end of the turning moment of motor drive mechanism.Wherein, ZGD1 disconnecting switch motor-operating mechanism 104c's is defeated Shaft is connect by ZGD1 isolating switch mechanism connecting lever 109 with one end of ZGD1 disconnecting switch drive rod 106, ZGD1 disconnecting switch The other end of drive rod 106 by ZGD1 disconnecting switch connecting lever 108 be connected to one end of ZGD1 disconnecting switch shaft 1017 to ZGD1 disconnecting switch shaft 1017 is driven to rotate;The output shaft of ZGD1 earthing switch electrical operating mechanism 104b is grounded by ZGD1 Switching mechanism connecting lever 1010 is connect with one end of ZGD1 earthing switch drive rod 105, ZGD1 earthing switch drive rod 105 it is another End is connected to one end of ZGD1 ground switch rotating shaft 1016 by ZGD1 earthing switch connecting lever 107 to drive ZGD1 earthing switch Shaft 1016 rotates.
ZGD1 disconnecting switch drive rod 106 by metal circular tube through cutting, welding, zinc-plated form.It and ZGD1 disconnecting switch Connecting lever 108 and ZGD1 isolating switch mechanism connecting lever 109 cooperate motor drive mechanism in ZGD1 disconnecting switch motor-operating mechanism 104c Torque steadily pass to disconnecting switch and carry out breaking-closing operating, adjust its length adjustable tri- pole ZGD1 isolation ground connection The initial position of disconnecting switch in device 101 guarantees the good contact of disconnecting switch with this.
ZGD1 earthing switch drive rod 105 by metal circular tube through cutting, welding, zinc-plated form.It and ZGD1 earthing switch Connecting lever 107 and ZGD1 earthing switch mechanism connecting lever 1010 cooperate motor drive mechanism in ZGD1 earthing switch electrical operating mechanism 104b Torque steadily pass to earthing switch and carry out breaking-closing operating, adjust its length adjustable tri- pole ZGD1 isolation ground connection The initial position of earthing switch in device 101, to guarantee the good contact of earthing switch.
ZGD1 earthing switch connecting lever 107 by metal material through cutting, drilling, it is zinc-plated form, it be fixed on ZGD1 ground connection open The end for closing shaft 1016 adjusts the division of earthing switch in its adjustable tri- pole the ZGD1 isolation earthing or grounding means 101 of length Lock stroke is opened with meeting the divide-shut brake stroke of tri- pole ZGD1 isolation 101 earthing switch of earthing or grounding means away from requiring.
ZGD1 disconnecting switch connecting lever 108 by metal material through cutting, drilling, it is zinc-plated form, it is fixed on ZGD1 and keeps apart The end for closing shaft 1017 adjusts the division of disconnecting switch in its adjustable tri- pole the ZGD1 isolation earthing or grounding means 101 of length Lock stroke is opened with meeting the divide-shut brake stroke of tri- pole ZGD1 isolation 101 disconnecting switch of earthing or grounding means away from requiring.
ZGD1 isolating switch mechanism connecting lever 109 by metal material through cutting, drilling, it is zinc-plated form, it be fixed on ZGD1 every The end for leaving powered-down pneumatic operating mechanism 104c output shaft, adjust its adjustable disconnecting switch of length divide-shut brake stroke and The size for changing ZGD1 disconnecting switch motor-operating mechanism 104c output shaft torque, to meet tri- pole ZGD1 isolation earthing or grounding means The needs of the divide-shut brake of 101 disconnecting switch.
ZGD1 earthing switch mechanism connecting lever 1010 by metal material through cutting, drilling, it is zinc-plated form, it is fixed on ZGD1 and connects The end of ground switch on/off electric operating mechanism 104b output shaft, adjust its adjustable earthing switch of length divide-shut brake stroke and The size for changing ZGD1 earthing switch electrical operating mechanism 104b output shaft torque, to meet tri- pole ZGD1 isolation earthing or grounding means The needs of the divide-shut brake of 101 earthing switches.
The first supporting insulator of ZGD1 1014, ZGD1 the second supporting insulator 101b, ZGD1 third supporting insulator 101k It is cast with the 4th supporting insulator by epoxy resin, they carry out insulating supporting to 35KV primary circuit element and meet absolutely Edge requirement, they need to meet the insulating requirements of exchange 35KV voltage class.
It includes ZGD2 cabinet body 201 that earthed system 20, which is isolated, in sextupole traction rectifier transformer, and earthing or grounding means is isolated in ZGD2 sextupole 202 are set to the lower part inside ZGD2 cabinet body 201, and ZGD2 motor-operating mechanism case is set to the top inside ZGD2 cabinet body 201.
ZGD2 cabinet body 201 is clipped by metal foil, drilling, bending, is welded, and preservative treatment has been done on surface, it Degree of protection is IP4X.ZGD2 cabinet body 201 is including visiting 201b before ZGD2 skeleton 201a before ZGD2 skeleton 201a, ZGD2 The top of side, the preceding Xiamen 201c of ZGD2 are set to ZGD2 bone set on the lower part of the front side of ZGD2 skeleton 201a, ZGD2 epipleural 201d The top of two sides of frame 201a, lower part of the ZGD2 lower side panel 201e set on two sides of ZGD2 skeleton 201a, ZGD2 skeleton The top of 201a is equipped with ZGD2 brows 201f and ZGD2 hanging ring 201g.
It is earthed system 20 is isolated in sextupole traction rectifier transformer key zero that earthing or grounding means 202, which is isolated, in ZGD2 sextupole Part, it mainly completes the electrical connection and electrical disjunction of 30 power output end 1180V of traction rectifier transformer, six phase alternating current circuit Isolation, and during repair and maintenance the six phase alternating current circuit of output end 1180V of traction rectifier transformer 30 protective grounding Line is attached and removed from.
ZGD2 sextupole isolation earthing or grounding means 202 includes the ZGD2 bedframe for being bolted to ZGD2 cabinet body 201 It is set side by side on 202a, ZGD2 bedframe 202a there are six the dynamic touching switch of ZGD2, the dynamic touching switch of each ZGD2 is correspondingly connected with A wherein phase in six phase power supplys.The dynamic touching switch of ZGD2 include the second supporting insulator 202e of ZGD2 upper static contact 202d, ZGD2, Movable touch knife 202h, ZGD2 lower static contact 202j, ZGD2 third is isolated in the first connecting lever of ZGD2 202f, ZGD2 spacer bar 202g, ZGD2 Supporting insulator 202m and ZGD2 are grounded movable touch knife 202k.ZGD2 disconnecting switch shaft 202b and ZGD2 ground switch rotating shaft 202c It is connected simultaneously with the dynamic touching switch of six ZGD2, so that the opening and closing movement of the dynamic touching switch of six ZGD2 is realized unanimously.
The one end for the second supporting insulator of the ZGD2 202e being laterally arranged is connected to the top of ZGD2 bedframe 202a, separately The end of one end is connected with ZGD2 upper static contact 202d.ZGD2 disconnecting switch shaft 202b is set in ZGD2 bedframe 202a Portion;ZGD2 spacer bar 202g is set to the lower section of the second supporting insulator of ZGD2 202e, and one end is hinged to the first connecting lever of ZGD2 The other end of one end of 202f, the first connecting lever of ZGD2 202f is fixedly connected with ZGD2 disconnecting switch shaft 202b;ZGD2 spacer bar The other end of 202g is hinged to the middle part of ZGD2 isolation movable touch knife 202h, and one end and the ZGD2 third of movable touch knife 202h is isolated in ZGD2 One end of supporting insulator 202m is hinged, and ZGD2 third supporting insulator 202m is horizontally set at the lower section of ZGD2 spacer bar 202g And the other end of ZGD2 third supporting insulator 202m is connected to ZGD2 bedframe 202a.ZGD2 lower static contact 202j is set to The end of the one end of ZGD2 third supporting insulator 202m far from ZGD2 bedframe 202a.ZGD2 ground switch rotating shaft 202c is set In the bottom of ZGD2 bedframe 202a, the one end for the ZGD2 ground connection movable touch knife 202k connecting with ground protection line and ZGD2 are grounded Switch shaft 202c is fixedly connected.
The first supporting insulator of ZGD2 2013 is fixed on the ZGD2 cabinet body 201 of ZGD2 dynamic touching switch lower section, ZGD2 first Supporting insulator 2013 is connected with ZGD2 outgoing line busbar 2010 far from the end of ZGD2 cabinet body 201, and ZGD2 outgoing line busbar 2010 connects It is connected to ZGD2 lower static contact 202j, while ZGD2 outgoing line busbar 2010 is through ZGD2 outlet cable 2017 and 1500V DC rectifier cabinet Input terminal be connected.
ZGD2 incoming-line busbar 2011 is fixed in ZGD2 cabinet body 201 by ZGD2 voltage sensor 2012, and ZGD2 inlet wire is female Row 2011 is connected to ZGD2 upper static contact 202d, while ZGD2 incoming-line busbar 2011 is whole by ZGD2 inlet wire cable 2016 and traction The output end of six phase AC1180V power supplys of convertor transformer 30 is connected.
ZGD2 outgoing line busbar 2010 and ZGD2 incoming-line busbar 2011 it is clipped by metal copper bar, drilling, bending it is tin plating again It forms.ZGD2 inlet wire cable 2016 and ZGD2 outlet cable 2017 are copper -sheathed cable, they need to meet 1180V, The technical conditions and insulating requirements of 2000A.
ZGD2 voltage sensor 2012 is made of high-voltage capacitance formula voltage component, to the primary circuit 1180V whether have electricity into Row sampling, it need to meet the insulating requirements of exchange 1180V voltage class.
Movable touch knife 202h composition isolation is isolated in ZGD2 upper static contact 202d, ZGD2 lower static contact 202j and rotatable ZGD2 Switch completes connection and the disjunction isolation features of 30 6 phase output terminal power circuit of traction rectifier transformer, it need to meet specified Voltage 1180V, the electric requirement of rated current 2000A, it and related components are both needed to meet the requirement of AC1180V voltage insulation. The rotation of ZGD2 disconnecting switch shaft 202b drives the rotation of the first connecting lever of ZGD2 202f, and then passes through ZGD2 spacer bar 202g band Dynamic ZGD2 isolation movable touch knife 202h is moved upwards to be contacted with ZGD2 upper static contact 202d, to realize the connection of power supply;ZGD2 every ZGD2 isolation movable touch knife 202h and ZGD2 upper static contact 202d can be made to disengage from rotating backward for switch shaft 202b, from And realize the disconnection of power supply.
ZGD2 lower static contact 202j and rotatable ZGD2 ground connection movable touch knife 202k forms earthing switch, completes traction rectifier The protective ground wire of 30 6 phase 1180V power output end circuit of transformer is attached and removed from function, it need to guarantee the company of ground connection Continue property contact resistance≤100m Ω, in short-term earth current >=16A/2S.The rotation of ZGD2 ground switch rotating shaft 202c drives ZGD2 Ground connection movable touch knife 202k is moved upwards to be contacted with ZGD2 lower static contact 202j, to realize the connection of protective ground wire;ZGD2 connects The counter motion of ground switch shaft 202c can be such that ZGD2 ground connection movable touch knife 202k and ZGD2 lower static contact 202j disengages, from And realize the dismounting of protective ground wire.
ZGD2 bedframe 202a is clipped by sheet metal, drilling, weld, surface is done preservative treatment and formed.
ZGD2 upper static contact 202d, ZGD2 are isolated movable touch knife 202h, ZGD2 lower static contact 202j and ZGD2 and are grounded movable touch knife 202k is formed by silver-plated again after the clipped bending milling of metallic copper material.
ZGD2 disconnecting switch shaft 202b and ZGD2 ground switch rotating shaft 202c are by metal round steel through turning, quenched, again Zinc-plated to form, they are the shafts of disconnecting switch and earthing switch, they need enough mechanical strengths and certain toughness.
The first supporting insulator of ZGD2 2013, ZGD2 the second supporting insulator 202e and ZGD2 third supporting insulator 202m It is cast by epoxy resin, they carry out insulating supporting to 1180V primary circuit element and provide insulating requirements, they are needed Meet the insulating requirements of exchange 1180V voltage class.
ZGD2 motor-operating mechanism case is the key equipment of sextupole traction rectifier transformer isolation earthed system 20, it is ZGD2 sextupole is isolated earthing or grounding means 202 and provides the power of divide-shut brake, it is mainly isolated by ZGD2 instrument control panel 207, ZGD2 Switch on/off electric operating mechanism 204 and ZGD2 earthing switch electrical operating mechanism 203 form.
ZGD2 disconnecting switch motor-operating mechanism 204 and the next Shangdi of ZGD2 earthing switch electrical operating mechanism 203 1 peace Mounted in the inside of ZGD2 motor-operating mechanism case.ZGD2 disconnecting switch motor-operating mechanism 204 and the electronic behaviour of ZGD2 earthing switch The structure for making mechanism 203 is identical, is the power producer of sextupole traction rectifier transformer isolation earthed system 20, it is by motor Rotary motion, change direction and moment amplification through turbine mechanism, then through drive rod be that earthing or grounding means 202 is isolated in ZGD2 sextupole Divide-shut brake provides power and torque, complete the disconnecting switch of ZGD2 sextupole isolation earthing or grounding means 202 and the separating brake of earthing switch and It closes a floodgate.Its accessory power supply has AC220V and DC220V/110V, power 500W.It has electric operating mode and emergency behaviour manually Operation mode.It is mainly exported by ZGD2 industrial connector 2018, ZGD2 divide-shut brake display window 2019, ZGD2 shell 2022, ZGD2 Axis 2023, ZGD2 manual mode socket 2020 and mode fill the composition such as hand-off handle 21.Wherein, ZGD2 shell 2022 is passed through by aluminum profile Drilling, milling, surface anticorrosion are handled, it carries out shell protection to motor drive mechanism.The accessory power supply of motor drive mechanism is through ZGD2 Industrial connector 2018 is communicated with the outside.ZGD2 divide-shut brake display window 2019 can observe the real-time status of motor drive mechanism.ZGD2 Mode change lever 2021 is used for the Unscrew ZGD2 manual mode socket 2020 when meeting an urgent need manual operation, to use manual behaviour Make handle insertion and carries out manual divide-shut brake.ZGD2 output shaft 2023 is the output end of the turning moment of motor drive mechanism.
Wherein, the output shaft of ZGD2 disconnecting switch motor-operating mechanism 204 and the one of ZGD2 disconnecting switch transmission shaft 2015 The other end of end connection, ZGD2 disconnecting switch transmission shaft 2015 passes through isolating switch mechanism connecting lever and ZGD2 disconnecting switch pull rod 205 one end connection, the other end of ZGD2 disconnecting switch pull rod 205 by ZGD2 disconnecting switch connecting lever 208 be connected to ZGD2 every One end from switch shaft 202b is to drive ZGD2 disconnecting switch shaft 202b to rotate;ZGD2 earthing switch electrical operating mechanism 203 output shaft is connect with one end of ZGD2 earthing switch transmission shaft 2014, the other end of ZGD2 earthing switch transmission shaft 2014 Connect by earthing switch mechanism connecting lever with one end of ZGD2 earthing switch pull rod 206, ZGD2 earthing switch pull rod 206 it is another End is connected to one end of ZGD2 ground switch rotating shaft 202c by ZGD2 earthing switch connecting lever 209 to drive ZGD2 earthing switch Shaft 202c rotation.
ZGD2 instrument control panel 207 is done preservative treatment and is formed by sheet metal by shearing, drilling, face of weld, it It is the operation panel and display panel of whole device, it includes ZGD2 instrument face plate 207a, ZGD2 output end electrification display 207b, ZGD2 input terminal electrification display 207c, ZGD2 hinge 207d, ZGD2 intelligent comprehensive measure and control device 207e, ZGD2 mode Change-over switch 207f, ZGD2 illumination accessory power supply switch 207g, ZGD2 disconnecting switch divide-shut brake display lamp 207h, ZGD2 ground connection are opened Pass tri- pole general supply control switch 207j, ZGD2 disconnecting switch divide-shut brake display lamp 207k of divide-shut brake indicator light 207i, ZGD2, ZGD2 earthing switch divide-shut brake display lamp 207m and ZGD2 sextupole general supply control switch 207n.ZGD2 output end electrification display 207b is the electrification display of 30 power output end of traction rectifier transformer, six phase AC1180V.ZGD2 input terminal electrification display 207c is the electrification display of 30 power input three-phase AC35KV of traction rectifier transformer.ZGD2 hinge 207d is used for ZGD2 Instrument control panel 207 is hinged to the top of ZGD2 cabinet body 201.ZGD2 intelligent comprehensive measure and control device 207e is in micro computer control The heart, it on the one hand control tri- pole ZGD1 isolation earthing or grounding means 101 and ZGD2 sextupole isolation earthing or grounding means 202 breaking-closing operating with And the mutual locking between system;On the other hand also real-time communication is realized by digital communication technology and remote control center, The function of " distant place control " is completed, and transmits three pole traction rectifier transformers isolation earthed system 10 and sextupole traction rectifier transformation The real-time status of device isolation earthed system 20 is monitored in real time to central control room.ZGD2 mode conversion switch 207f is " remote Side/on the spot " mode conversion switch.ZGD2 illumination accessory power supply switch 207g is the switch of the accessory power supplys such as illumination.
ZGD2 disconnecting switch divide-shut brake display lamp 207h is the division of the disconnecting switch of tri- pole ZGD1 isolation earthing or grounding means 101 Lock indicator light.ZGD2 earthing switch divide-shut brake indicator light 207i is point of the earthing switch of tri- pole ZGD1 isolation earthing or grounding means 101 Combined floodgate indicator light.Tri- pole general supply control switch 207j of ZGD2 is the control of three pole traction rectifier transformers isolation earthed system 10 The control master switch of power supply and electrical source of power.
ZGD2 disconnecting switch divide-shut brake display lamp 207k is the division of the disconnecting switch of ZGD2 sextupole isolation earthing or grounding means 202 Lock indicator light.ZGD2 earthing switch divide-shut brake display lamp 207m is point of the earthing switch of ZGD2 sextupole isolation earthing or grounding means 202 Combined floodgate indicator light.ZGD2 sextupole general supply control switch 207n is the control of sextupole traction rectifier transformer isolation earthed system 20 The control master switch of power supply and electrical source of power.
ZGD2 disconnecting switch pull rod 205 by metal circular tube through cutting, welding, it is zinc-plated form, it is turned with isolating switch mechanism The torque of ZGD2 disconnecting switch motor-operating mechanism 204 is reliablely and stablely transmitted to by arm and the cooperation of ZGD2 disconnecting switch connecting lever 208 The disconnecting switch that ZGD2 sextupole is isolated in earthing or grounding means 202 carries out breaking-closing operating, and the length for adjusting it adjustable is kept apart The initial position of pass, to guarantee good contact when disconnecting switch connection.
Earthing switch drive rod 6 by metal circular tube through cutting, welding, it is zinc-plated form, it and earthing switch mechanism connecting lever and The torque of ZGD2 earthing switch electrical operating mechanism 203 is reliablely and stablely transmitted to ZGD2 by the cooperation of ZGD2 earthing switch connecting lever 209 The earthing switch that sextupole is isolated in earthing or grounding means 202 carries out breaking-closing operating, adjusts its adjustable earthing switch of length Initial position guarantees good contact when ground switch earthing.
ZGD2 disconnecting switch connecting lever 208 by metal material through cutting, drilling, it is zinc-plated form, adjusting its length can adjust It saves the divide-shut brake stroke of disconnecting switch and changes the size of 204 output shaft torque of ZGD2 disconnecting switch motor-operating mechanism, pass through Adjusting it can satisfy the technology needs of the divide-shut brake of disconnecting switch in ZGD2 sextupole isolation earthing or grounding means 202.
ZGD2 earthing switch connecting lever 209 by metal material through cutting, drilling, it is zinc-plated form, adjusting its length can adjust It saves the divide-shut brake stroke of earthing switch and changes the size of 203 output shaft torque of ZGD2 earthing switch electrical operating mechanism, pass through Adjusting it can satisfy the technology needs of the divide-shut brake of earthing switch in ZGD2 sextupole isolation earthing or grounding means 202.
ZGD2 earthing switch transmission shaft 2014 by metal round steel through cutting, welding, it is zinc-plated form, it and isolating switch mechanism The torque of ZGD2 earthing switch electrical operating mechanism 203 is reliablely and stablely transmitted to by connecting lever and the cooperation of earthing switch drive rod 6 Earthing switch carries out breaking-closing operating, and the ground connection adjusted in its adjustable ZGD2 sextupole isolation earthing or grounding means 202 of length is opened The initial position of pass, to guarantee that contact is good reliable when the ground switch earthing in ZGD2 sextupole isolation earthing or grounding means 202.
ZGD2 disconnecting switch transmission shaft 2015 by metal round steel through cutting, welding, it is zinc-plated form, it and earthing switch mechanism Connecting lever and ZGD2 disconnecting switch pull rod 205 cooperate the torque of ZGD2 disconnecting switch motor-operating mechanism 204 reliablely and stablely Be transmitted to disconnecting switch and carry out breaking-closing operating, adjust in its length adjustable ZGD2 sextupole isolation earthing or grounding means 202 every The initial position of pass is left, to guarantee the contact good reliability of the disconnecting switch in ZGD2 sextupole isolation earthing or grounding means 202.

Claims (5)

1. earthed system is isolated in a kind of traction rectifier transformer, it is characterised in that:Including being set to traction rectifier transformer (30) Three pole traction rectifier transformers of three-phase power input end are isolated earthed system (10) and are set to traction rectifier transformer (30) Earthed system (20) are isolated in the sextupole traction rectifier transformer of six phase power output ends;
It includes ZGD1 installing base frame (102) that earthed system (10), which are isolated, in three pole traction rectifier transformer;The isolation of tri- pole ZGD1 Earthing or grounding means (101) is connected to the middle part of ZGD1 installing base frame (102), and ZGD1 motor-operating mechanism case (104) is pacified set on ZGD1 Fill the side of pedestal (102);
Tri- pole ZGD1 isolation earthing or grounding means (101) includes the ZGD1 base frames being connected in the middle part of ZGD1 installing base frame (102) Frame (101a) is set on ZGD1 bedframe (101a) side by side there are three the dynamic touching switch of ZGD1, and the dynamic touching switch of each ZGD1 corresponds to The wherein phase being connected in three phase mains;The dynamic touching switch of ZGD1 includes ZGD1 upper static contact (101c), ZGD1 isolation movable touch knife (101e), ZGD1 lower static contact (101h) and ZGD1 ground connection movable touch knife (101g);The second supporting insulator of ZGD1 being laterally arranged The one end of (101b) is connected to the top of ZGD1 bedframe (101a), and the end of the other end is connected with ZGD1 upper static contact (101c);ZGD1 support frame for insulator (1015) is fixed on the top of ZGD1 installing base frame (102), ZGD1 support frame for insulator (1015) end far from ZGD1 installing base frame (102) is fixedly connected with the first supporting insulator of ZGD1 (1014), ZGD1 first The end of supporting insulator (1014) is connected with ZGD1 outgoing line busbar (1011);ZGD1 outgoing line busbar (1011) is connected on ZGD1 Static contact (101c), while ZGD1 outgoing line busbar (1011) is connected with the input terminal of traction rectifier transformer (30);ZGD1 isolation Switch shaft (1017) is set to the middle part of ZGD1 bedframe (101a);ZGD1 insulating driving rod (101d) is set to ZGD1 second The lower section of insulator (101b) is supportted, one end of ZGD1 insulating driving rod (101d) is hinged to one end of the first connecting lever of ZGD1, ZGD1 The other end of first connecting lever is fixedly connected with ZGD1 disconnecting switch shaft (1017);The other end of ZGD1 insulating driving rod (101d) It is hinged to the middle part of ZGD1 isolation movable touch knife (101e), one end and the ZGD1 third supports insulative of movable touch knife (101e) is isolated in ZGD1 The one end of sub (101k) is hinged, and ZGD1 third supporting insulator (101k) is horizontally set under ZGD1 insulating driving rod (101d) The other end of side and ZGD1 third supporting insulator (101k) is connected to ZGD1 bedframe (101a);ZGD1 lower static contact (101h) is set to the end of the one end of ZGD1 third supporting insulator (101k) far from ZGD1 bedframe (101a);ZGD1 ground connection Switch shaft (1016) is set to the bottom of ZGD1 bedframe (101a), the ZGD1 ground connection movable touch knife connecting with ground protection line The one end of (101g) is fixedly connected with ZGD1 ground switch rotating shaft (1016);
4th supporting insulator is fixed in the ZGD1 installing base frame (102) of ZGD1 dynamic touching switch lower section, the 4th supporting insulator End far from ZGD1 installing base frame (102) is connected with ZGD1 incoming-line busbar (1012), and ZGD1 incoming-line busbar (1012) is connected to ZGD1 lower static contact (101h), ZGD1 lower static contact (101h) are connected with the output end of high-voltage feedback power cabinet;
ZGD1 pull rod fixed frame (103) is set between ZGD1 installing base frame (102) and ZGD1 motor-operating mechanism case (104), packet Include fixed bottom plate and support ring set on the bottom plate;ZGD1 disconnecting switch shaft (1017) and ZGD1 ground switch rotating shaft (1016) it passes through support ring and is only capable of rotating in support ring;
The ZGD1 motor-operating mechanism case (104) is used for ZGD1 disconnecting switch shaft (1017) and ZGD1 ground switch rotating shaft (1016) power of rotation is provided;
Sextupole traction rectifier transformer isolation earthed system (20) includes ZGD2 cabinet body (201);Six grades of isolation ground connection of ZGD2 Device (202) is set to ZGD2 cabinet body (201) internal lower part, and it is internal that ZGD2 motor-operating mechanism case is set to ZGD2 cabinet body (201) Top;
Six grades of isolation earthing or grounding means (202) of the ZGD2 include the ZGD2 bedframe (202a) connecting with ZGD2 cabinet body (201), It is set side by side on ZGD2 bedframe (202a) there are six the dynamic touching switch of ZGD2, the dynamic touching switch of each ZGD2 is correspondingly connected with to six phases A wherein phase in power supply;The dynamic touching switch of the ZGD2 include ZGD2 upper static contact (202d), ZGD2 isolation movable touch knife (202h), ZGD2 lower static contact (202j) and ZGD2 ground connection movable touch knife (202k);The second supporting insulator of ZGD2 (202e) being laterally arranged One end is connected to the top of ZGD2 bedframe (202a), and the end of the other end is connected with ZGD2 upper static contact (202d);ZGD2 Disconnecting switch shaft (202b) is set to the middle part of ZGD2 bedframe (202a);ZGD2 spacer bar (202g) is set to ZGD2 second The lower section of insulator (202e) is supportted, one end is hinged to one end of the first connecting lever of ZGD2 (202f), the first connecting lever of ZGD2 (202f) The other end be fixedly connected with ZGD2 disconnecting switch shaft (202b);The other end of ZGD2 spacer bar (202g) be hinged to ZGD2 every The one end and the one of ZGD2 third supporting insulator (202m) of movable touch knife (202h) is isolated in middle part from movable touch knife (202h), ZGD2 End is hinged, and ZGD2 third supporting insulator (202m) is horizontally set at the lower section of ZGD2 spacer bar (202g) and ZGD2 third supports The other end of insulator (202m) is connected to ZGD2 bedframe (202a);ZGD2 lower static contact (202j) is set to ZGD2 third branch Support the end of the one end of insulator (202m) far from ZGD2 bedframe (202a);ZGD2 ground switch rotating shaft (202c) is set to One end of the bottom of ZGD2 bedframe (202a), ZGD2 ground connection movable touch knife (202k) connecting with ground protection line connects with ZGD2 Ground switch shaft (202c) is fixedly connected;
The first supporting insulator of ZGD2 (2013) is fixed on the ZGD2 cabinet body (201) of ZGD2 dynamic touching switch lower section, ZGD2 first Supporting insulator (2013) is connected with ZGD2 outgoing line busbar (2010), ZGD2 outgoing line busbar far from the end of ZGD2 cabinet body (201) (2010) it is connected to ZGD2 lower static contact (202j), while the input terminal phase of ZGD2 outgoing line busbar (2010) and DC rectifier cabinet Even;
ZGD2 incoming-line busbar (2011) is fixed in ZGD2 cabinet body (201) by ZGD2 voltage sensor (2012), ZGD2 inlet wire Busbar (2011) is connected to ZGD2 upper static contact (202d), while ZGD2 incoming-line busbar (2011) and traction rectifier transformer (30) Six phase power supplys output end be connected;
The ZGD2 motor-operating mechanism case is used for ZGD2 disconnecting switch shaft (202b) and ZGD2 ground switch rotating shaft (202c) provides the power of rotation.
2. earthed system is isolated in a kind of traction rectifier transformer according to claim 1, it is characterised in that:The ZGD1 electricity Pneumatic operating mechanism case (104) includes ZGD1 cabinet (104a), ZGD1 disconnecting switch motor-operating mechanism (104c) and ZGD1 ground connection It is internal that switch on/off electric operating mechanism (104b) is mounted on ZGD1 cabinet (104a) one on the other;ZGD1 disconnecting switch electric operating Mechanism (104c) is identical with the structure of ZGD1 earthing switch electrical operating mechanism (104b), only exports rotation torque;
The output shaft of ZGD1 disconnecting switch motor-operating mechanism (104c) passes through ZGD1 isolating switch mechanism connecting lever (109) and ZGD1 One end of disconnecting switch drive rod (106) connects, and the other end of ZGD1 disconnecting switch drive rod (106) passes through ZGD1 disconnecting switch Connecting lever (108) is connected to one end of ZGD1 disconnecting switch shaft (1017) to drive ZGD1 disconnecting switch shaft (1017) to turn It is dynamic;The output shaft of ZGD1 earthing switch electrical operating mechanism (104b) passes through ZGD1 earthing switch mechanism connecting lever (1010) and ZGD1 One end of earthing switch drive rod (105) connects, and the other end of ZGD1 earthing switch drive rod (105) passes through ZGD1 earthing switch Connecting lever (107) is connected to one end of ZGD1 ground switch rotating shaft (1016) to drive ZGD1 ground switch rotating shaft (1016) to turn It is dynamic.
3. earthed system is isolated in a kind of traction rectifier transformer according to claim 1, it is characterised in that:Described 4th It supports insulator and is connected with ZGD1 voltage sensor (1013) far from the end of ZGD1 installing base frame (102);ZGD1 incoming-line busbar (1012) it is connected in the 4th supporting insulator by ZGD1 voltage sensor (1013).
4. earthed system is isolated in a kind of traction rectifier transformer according to claim 1, it is characterised in that:The ZGD2 electricity Pneumatic operating mechanism case includes that the ZGD2 earthing switch electrical operating mechanism (203) being mounted in it one on the other and ZGD2 keep apart Powered-down pneumatic operating mechanism (204);ZGD2 earthing switch electrical operating mechanism (203) and ZGD2 disconnecting switch motor-operating mechanism (204) structure is identical, only exports rotation torque;
The output shaft of ZGD2 earthing switch electrical operating mechanism (203) and one end of ZGD2 earthing switch transmission shaft (2014) connect It connects, the other end of ZGD2 earthing switch transmission shaft (2014) passes through earthing switch mechanism connecting lever and ZGD2 earthing switch pull rod (206) one end connection, the other end of ZGD2 earthing switch pull rod (206) are connected to by ZGD2 earthing switch connecting lever (209) One end of ZGD2 ground switch rotating shaft (202c) is to drive ZGD2 ground switch rotating shaft (202c) to rotate;ZGD2 keeps apart powered-down The output shaft of pneumatic operating mechanism (204) is connect with one end of ZGD2 disconnecting switch transmission shaft (2015), the transmission of ZGD2 disconnecting switch The other end of axis (2015) is connect by isolating switch mechanism connecting lever with one end of ZGD2 disconnecting switch pull rod (205), ZGD2 every The other end from switch lever (205) is connected to ZGD2 disconnecting switch shaft (202b) by ZGD2 disconnecting switch connecting lever (208) One end to drive ZGD2 disconnecting switch shaft (202b) rotate.
5. earthed system is isolated in a kind of traction rectifier transformer according to claim 4, it is characterised in that:The ZGD2 electricity Pneumatic operating mechanism case is additionally provided with can realize remote status monitoring and control tri- pole ZGD1 isolation ground connection dress by digital communication technology Set the ZGD2 instrument control panel (207) of (101) and six grades of isolation earthing or grounding means (202) breaking-closing operatings of ZGD2.
CN201810749026.4A 2018-07-10 2018-07-10 Earthed system is isolated in traction rectifier transformer Pending CN108922817A (en)

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