CN109406917A - A kind of detection system and method for distribution transforming gear state - Google Patents

A kind of detection system and method for distribution transforming gear state Download PDF

Info

Publication number
CN109406917A
CN109406917A CN201811572094.4A CN201811572094A CN109406917A CN 109406917 A CN109406917 A CN 109406917A CN 201811572094 A CN201811572094 A CN 201811572094A CN 109406917 A CN109406917 A CN 109406917A
Authority
CN
China
Prior art keywords
gear
balancing point
monitoring terminal
direction board
signal processing
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
CN201811572094.4A
Other languages
Chinese (zh)
Inventor
徐肖伟
宁友欢
董涛
聂鼎
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.)
Electric Power Research Institute of Yunnan Power System Ltd
Original Assignee
Electric Power Research Institute of Yunnan Power System 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.)
Filing date
Publication date
Application filed by Electric Power Research Institute of Yunnan Power System Ltd filed Critical Electric Power Research Institute of Yunnan Power System Ltd
Priority to CN201811572094.4A priority Critical patent/CN109406917A/en
Publication of CN109406917A publication Critical patent/CN109406917A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

This application discloses the detection systems and method of a kind of distribution transforming gear state, the machine driving contact making device connected including monitoring terminal with transmission line therewith, monitoring terminal includes power module, the display module and signal processing module that are attached thereto, and signal processing module is connect with display module;Machine driving contact making device includes contact bodies and direction board, and contact bodies are provided with main shaft, and the both ends connection manual knob and balancing point, direction board of main shaft are flexibly connected with main shaft by balancing point, and direction board is provided with multiple gears, and balancing point is equipped with probe;Contact bodies are equipped with quiet contact point and tactile disk, and quiet contact point and tactile disk are placed in the two sides of main shaft, and tactile disk is provided with multiple copper sheets, and copper sheet respectively corresponds the gear of direction board, and probe is moved along tactile disk, and probe is successively in contact with multiple copper sheets.Machine driving contact making device is controlled by monitoring terminal long distance to monitor the gear of platform area distribution transforming, can be completed to detect gear state in case of constant power, be effectively improved working efficiency.

Description

A kind of detection system and method for distribution transforming gear state
Technical field
This application involves distribution network technology field more particularly to a kind of detection systems and method of distribution transforming gear state.
Background technique
10kV power distribution network feature maximum in structure is directly connected with user as power grid end.In 10kV power distribution network In operational process, to guarantee that line end voltage is met the requirements, need to monitor the gear of 10kV distribution transformer, so that selection is most Excellent voltage pressure regulation method, it is therefore desirable to the gear of 10kV distribution transforming is monitored and be established and improve gear account.Electric power safety Administrative provisions: should inspect periodically off circuit tap changer moving contact and whether static contact contact loosens with whether tap switch misplaces Or in neutral gear position.
For existing detection mode generally by artificial detection, specific detection process is as follows: since distribution transformer gear is in shelves Under the lid of position, it is first turned on gear lid and positioning pin;Formally gear is adjusted again;After tap switch is adjusted again, turn It is dynamic to judge whether it is secured;Finally by direct-current bridge, each phase winding DC resistance is surveyed, it is ensured that the resistance value energy between each phase Enough reach balance, completes adjustment work.
When adjusting distribution transforming gear, due to cannot be automatically adjusted, manually adjusted first to corresponding It is corresponding to be unable to direct viewing since device of under actual working state, entirely transferring the files is covered by a closed metal cap for gear Gear, need to open metal cap when later period gear checks and checked, and open metal cap and need first to power off, and need Repeatedly power-off, the efficiency of inspection are especially low.In order to improve detection efficiency, detection system and the side of a kind of distribution transforming gear state are proposed Method.
Summary of the invention
This application provides the detection systems and method of a kind of distribution transforming gear state, to solve existing detection method detection effect The low technical problem of rate.
To solve the above-mentioned problems, the application provides technical solution below:
A kind of detection system of distribution transforming gear state, including monitoring terminal and machine driving contact making device, monitoring terminal with Machine driving contact making device is connected by transmission line, in which: monitoring terminal includes display module, signal processing module and power supply mould Block, power module are electrically connected with display module, signal processing module respectively, and signal processing module is electrically connected with display module, letter Number processing module includes multiple signal processing circuits;Machine driving contact making device includes contact bodies and direction board, contact bodies It is provided with main shaft, the both ends of main shaft are movably connected with manual knob and balancing point, and direction board is flexibly connected with main shaft by balancing point, Direction board is provided with multiple gears, and balancing point includes balancing point movable part, balancing point connector and balancing point fixing piece, balancing point fixing piece and master Axis is flexibly connected, and balancing point fixing piece is flexibly connected with balancing point movable part by balancing point connector, and the balancing point close to contact bodies connects Fitting is provided with probe on one side;Contact bodies are additionally provided with quiet contact point and tactile disk, and quiet contact point and tactile disk are placed in main shaft The shape of two sides, tactile disk is circle, and tactile disk is provided with multiple copper sheets, and copper sheet respectively corresponds the gear of direction board, and probe is along touching Disk is mobile, and probe is successively in contact with multiple copper sheets.
Optionally, display module includes display screen and charactron.
Optionally, power module includes 1.5V dry cell and lithium ion battery.
Optionally, the number of copper sheet, the number of gear of direction board are identical with the number of the signal processing circuit of processing module.
Optionally, the number of the signal processing circuit of the number of copper sheet, the number of gear of direction board and processing module is 5 It is a.
A kind of detection method of distribution transforming gear state, method include:
Machine driving contact making device is fixed on tap switch;
Monitoring terminal is opened, and monitoring terminal is calibrated;
Machine driving contact making device is connect with monitoring terminal by transmission line;
Balancing point is turned to the gear of direction board by rotation manual button, the probe of balancing point contacts to form gear with copper sheet Signal;
Gear signal is sent to the signal processing module of monitoring terminal by machine driving contact making device;
Gear signal is carried out processing and obtains processing signal by the signal processing module for monitoring terminal, and will processing signal transmission To the display module of monitoring terminal.
The utility model has the advantages that the detection system includes that monitoring is whole this application provides a kind of detection system of distribution transforming gear state End and machine driving contact making device, monitoring terminal are connect with machine driving contact making device by transmission line.The detection system is used for Distribution transforming metering automation terminal device can not be transmitted to by solving current distribution transforming gear information, also can not remote transmission to back-stage management The problem of system, is realized and monitors in gear of the distal end to the distribution transforming of platform area.In use process, machine driving contact making device is pacified first Loaded in high-voltage isulation equipment, and it will test signal and monitoring terminal be sent to by transmission line, monitoring terminal will be after signal processing And it shows.The monitoring terminal of processing detection signal includes display module, signal processing module and power module.All parts Between connection relationship it is as follows: power module is electrically connected with display module, signal processing module respectively, signal processing module and aobvious Show that module is electrically connected, signal processing module includes multiple signal processing circuits.Detection signal is sent at signal by transmission line Module is managed, for signal processing module by handling the detection signal of input, driving display module is monitoring gear information It is shown in terminal.Machine driving contact making device includes contact bodies and direction board, and contact bodies are provided with main shaft, the both ends of main shaft It is movably connected with manual knob and balancing point, direction board is flexibly connected with main shaft by balancing point, and direction board is provided with multiple gears, Balancing point includes balancing point movable part, balancing point connector and balancing point fixing piece, and balancing point fixing piece is connect with spindle mobility, balancing point fixing piece It is flexibly connected with balancing point movable part by balancing point connector, the balancing point connector close to contact bodies is provided with probe on one side;Touching Point ontology is additionally provided with quiet contact point and tactile disk, and quiet contact point and tactile disk are placed in the two sides of main shaft, and the shape of tactile disk is circle, Tactile disk is provided with multiple copper sheets, and copper sheet respectively corresponds the gear of direction board, and probe is moved along tactile disk, probe and multiple copper sheets according to It is secondary to be in contact.Copper sheet on probe and tactile disk constitutes signal detection module, to detect gear signal.Working principle is as follows: hand Dynamic knob driving spindle rotates together, and main axis drives again rotates together balancing point.When manual knob rotates balancing point When to direction board position, the specific location of gear inside machine driving contact making device can be determined by observing external gear.It uses In the process, probe is rotated together with main shaft, and when rotating to some gear, probe can just be connect with the copper sheet on tactile disk, from And switch is formed, switch is connect with monitoring terminal, and display module can show corresponding gear;The spy when rotating to some gear When needle can just be connect with the copper sheet on tactile disk, balancing point turns to the respective notch of direction board.In the application, on probe and tactile disk Copper sheet form certain driving switch and be shown in monitoring modular;Balancing point turns to corresponding gear in direction board, can pass through sight The specific location that external gear determines gear inside machine driving contact making device is surveyed, can efficiently be completed in case of constant power Verification and state-detection to gear, effectively improve working efficiency.In the application, passed by the way that monitoring terminal long distance control is mechanical Movable contact device monitors the gear of platform area distribution transforming, can efficiently complete the verification and state to gear in case of constant power Detection, effectively improves working efficiency.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor, It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the detection system for distribution transforming gear state that application provides;
Fig. 2 is a kind of structural schematic diagram of the machine driving contact making device for distribution transforming gear state that application provides;
Fig. 3 is a kind of equivalent circuit diagram of the detection system for distribution transforming gear state that application provides;
Detailed description of the invention: 1- monitors terminal, 2- machine driving contact making device, 3- transmission line, 11- display module, at 12- signal Reason module, 13- power module, 21- contact bodies, 22- direction board, 23- manual knob, 24- balancing point, 211- main shaft, 212- are quiet Contact point, 213- tactile disk, 241- balancing point movable part, 242- balancing point connector, 243- balancing point fixing piece, 2131- copper sheet, 2421- Probe.
Specific embodiment
Fig. 1 is a kind of structural schematic diagram of the detection system of distribution transforming gear state provided by the present application, and Fig. 2 mentions for the application The structural schematic diagram of the machine driving contact making device of a kind of distribution transforming gear state supplied, referring to Fig. 1 and Fig. 2 it is found that the application mentions A kind of detection system of distribution transforming gear state is supplied, which includes monitoring terminal 1 and machine driving contact making device 2, prison It surveys terminal 1 and is connect with machine driving contact making device 2 by transmission line 3.The detection system is for solving current distribution transforming gear information Distribution transforming metering automation terminal device can not be transmitted to, also can not remote transmission to background management system the problem of, realize remote The gear of the area Duan Duitai distribution transforming monitors.In use process, machine driving contact making device 2 is installed on high-voltage isulation equipment first On, and will test signal and monitoring terminal 1 is sent to by transmission line 3, monitoring terminal 1 after signal processing and will be shown.Place The monitoring terminal 1 of reason detection signal includes display module 11, signal processing module 12 and power module 13.Between all parts Connection relationship is as follows: power module 13 is electrically connected with display module 11, signal processing module 12 respectively, signal processing module 12 with Display module 11 is electrically connected, and signal processing module 12 includes multiple signal processing circuits.Detection signal is sent to by transmission line 3 Signal processing module 12, signal processing module 12 drive display module 11 by shelves by handling the detection signal of input Position information is shown in monitoring terminal 1.Machine driving contact making device 2 includes contact bodies 21 and direction board 22, contact bodies 21 It is provided with main shaft 211, the both ends of main shaft 211 are movably connected with manual knob 23 and balancing point 24, and direction board 22 and main shaft 211 are logical The flexible connection of balancing point 24 is crossed, direction board 22 is provided with multiple gears, and balancing point 24 includes balancing point movable part 241, balancing point connector 242 With balancing point fixing piece 243, balancing point fixing piece 243 is flexibly connected with main shaft 211, and balancing point fixing piece 243 and 24 movable part of balancing point are logical The flexible connection of balancing point connector 242 is crossed, the balancing point connector 242 close to contact bodies 21 is provided with probe 2421 on one side;Contact Ontology 21 is additionally provided with quiet contact point 212 and tactile disk 213, and quiet contact point 212 and tactile disk 213 are placed in the two sides of main shaft 211, touching The shape of disk 213 is circle, and tactile disk 213 is provided with multiple copper sheets 2131, and copper sheet 2131 respectively corresponds the gear of direction board 22, is visited Needle 2421 is moved along tactile disk 213, and probe 2421 is successively in contact with multiple copper sheets 2131.On probe 2421 and tactile disk 213 Copper sheet 2131 constitutes signal detection module, to detect gear signal.It is a kind of distribution transforming gear shape provided by the present application referring to Fig. 3 The circuit diagram of the detection system of state, it is known that, copper sheet 2131 and probe 2421 on tactile disk 213 collectively constitute multiple switch, equivalent For S1, S2, S3, S4, S5 in Fig. 2.Positive pole connects current-limiting resistance, current-limiting resistance linking probe 2421.Multiple gears pair The connected conducting wire of copper sheet 2131 answered is connected with the anode of corresponding common cathode charactron respectively, and the charactron of display module 11 is public End is connect with master switch S altogether, S connection power cathode.By the acquisition to different stalls information, relevant control circuit is connected, Display module 11 is driven, to show corresponding gear information.Working principle is as follows: 23 rotate driving main shaft 211 1 of manual knob Rotation is played, driving rotates together balancing point 24 to the rotation of main shaft 211 again.When balancing point 24 is turned to direction board 22 by manual knob 23 When setting, the specific location of 2 inside gear of machine driving contact making device can be determined by observing external gear.In use process, visit Needle 2421 is rotated together with main shaft 211, when rotating to some gear probe 2421 can just with the copper sheet on tactile disk 213 2131 connections, to form switch, switch is connect with monitoring terminal 1, and display module 11 can show corresponding gear;Work as rotation When probe 2421 can just be connect with the copper sheet 2131 on tactile disk 213 when to some gear, balancing point 24 turns to direction board 22 Respective notch.In the application, the copper sheet 2131 on probe 2421 and tactile disk 213 forms certain driving switch and is shown in monitoring mould Block 1;Balancing point 24 turns to corresponding gear in direction board 22, can determine machine driving contact making device 2 by observing external gear The specific location of internal gear can efficiently complete verification and state-detection to gear in case of constant power, effectively mention High working efficiency.When adjusting distribution transforming gear, due to cannot be automatically adjusted, manually adjusts arrive phase first Gear is answered, it, cannot since under actual working state, entire machine driving contact making device 2 is covered by a closed metal cap The corresponding gear of direct viewing needs to open metal cap when later period gear checks and is checked, and opens metal cap and need elder generation Power-off, therefore the efficiency checked is especially low, and needs repeatedly power-off, so reducing to improve routing inspection efficiency due to power-off Brought loss, machine driving contact making device 2 designed by the application indicate to switch locating by external direction board 22 Gear.But since the environment for switching locating is more severe, direction board 22 will appear damage, error etc. occurs in instruction, in order to improve Confidence level, the application devise an auxiliary monitoring terminal 1.It can be realized at a distance by the monitoring terminal 1 to gear information It is detected.In the application, the gear by monitoring 12 pairs of platform area distribution transformings of far distance control machine driving contact making device of terminal is supervised It surveys, can efficiently complete the verification and state-detection to gear in case of constant power, effectively improve working efficiency.
For convenience in the monitoring display gear of terminal 1, the present embodiment, display module 11 includes display screen and charactron. Display screen and charactron may be incorporated for the gear information of display detection.It monitors and handles electricity in the signal processing module 12 of terminal 1 Road constitutes associated loop according to the gear information that machine driving contact making device 2 acquires, and drives the display detection of display module 11 Gear information.
In order to power to monitoring terminal 1, in the present embodiment, power module 13 includes 1.5V dry cell and lithium ion battery. 1.5V dry cell and lithium ion battery all can be monitor the power supply of terminal 1, and the light weight of battery, mitigate the matter of monitoring terminal 1 Amount facilitates the carrying of monitoring terminal 1.
In order to facilitate display gear, in the present embodiment, the number of copper sheet 2131, the number of gear of direction board 22 and processing mould The number of the signal processing circuit of block 12 is identical, and number is 5.At the number of copper sheet 22131 and the signal of processing module 12 The number for managing circuit is identical, so that the number of gear that monitoring terminal 1 is shown is identical as the number of copper sheet 2131, facilitates monitoring terminal The display of 1 gear.Direction board 22 is identical as the number of copper sheet 2131 so that the number of gear that shows of monitoring terminal 1 with from metal The outer number of gear observed directly of cover is identical, improves the accuracy of gear detection.
The application additionally provides a kind of distribution transforming gear state other than providing a kind of detection system of distribution transforming gear state Detection method, this method comprises:
S01: machine driving contact making device is fixed on tap switch;
S02: monitoring terminal is opened, and monitoring terminal is calibrated;
S03: machine driving contact making device is connect with monitoring terminal by transmission line;
Balancing point: being turned to the gear of direction board by rotation manual button by S04, and the probe of balancing point contacts to be formed with copper sheet Gear signal;
S05: gear signal is sent to the signal processing module of monitoring terminal by machine driving contact making device;
S06: gear signal is carried out processing and obtains processing signal by the signal processing module for monitoring terminal, and will handle signal It is transferred to the display module of monitoring terminal.
Those skilled in the art will readily occur to its of the application after considering the embodiment of specification and practice here Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or Person's adaptive change follows the general principle of the application and including the not used common knowledge in the art of the application Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by following Claim is pointed out.
It should be understood that the application is not limited to the precise structure that has been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.

Claims (6)

1. a kind of detection system of distribution transforming gear state, which is characterized in that including monitoring terminal (1) and machine driving contact making device (2), the monitoring terminal (1) is connect with the machine driving contact making device (2) by transmission line (3), in which:
The monitoring terminal (1) includes display module (11), signal processing module (12) and power module (13), the power supply mould Block (13) is electrically connected with the display module (11), the signal processing module (12) respectively, the signal processing module (12) It is electrically connected with the display module (11), the signal processing module (12) includes multiple signal processing circuits;
The machine driving contact making device (2) includes contact bodies (21) and direction board (22), contact bodies (21) setting Have main shaft (211), the both ends of the main shaft (211) are movably connected with manual knob (23) and balancing point (24), the direction board (22) it is flexibly connected with the main shaft (211) by the balancing point (24), the direction board (22) is provided with multiple gears, described Balancing point (24) includes balancing point movable part (241), balancing point connector (242) and balancing point fixing piece (243), the balancing point fixing piece (243) it is flexibly connected with the main shaft (211), the balancing point fixing piece (243) and the balancing point movable part (241) are described in Balancing point connector (242) is flexibly connected, and the balancing point connector (242) close to the contact bodies (21) is provided with spy on one side Needle (2421);
The contact bodies (21) are additionally provided with quiet contact point (212) and tactile disk (213), the quiet contact point (212) with it is described Tactile disk (213) is placed in the two sides of the main shaft (211), and the shape of the tactile disk (213) is circle, and the tactile disk (213) sets It is equipped with multiple copper sheets (2131), the copper sheet (2131) respectively corresponds the gear of the direction board (22), the probe (2421) Mobile along the tactile disk (213), the probe (2421) is successively in contact with multiple copper sheets (2131).
2. system according to claim 1, which is characterized in that the display module (11) includes display screen and charactron.
3. system according to claim 1, which is characterized in that the power module (13) include 1.5V dry cell and lithium from Sub- battery.
4. system according to claim 1, which is characterized in that the number of the copper sheet (2131), the direction board (22) Number of gear it is identical with the number of the signal processing circuit of the processing module (12).
5. system according to claim 4, which is characterized in that the number of the copper sheet (2131), the direction board (22) Number of gear and the number of signal processing circuit of the processing module (12) be 5.
6. a kind of detection method of distribution transforming gear state, which is characterized in that the described method includes:
Machine driving contact making device is fixed on tap switch;
Monitoring terminal is opened, and the monitoring terminal is calibrated;
The machine driving contact making device is connect with the monitoring terminal by transmission line;
Balancing point is turned to the gear of direction board by rotation manual button, the probe of balancing point contacts to form gear letter with copper sheet Number;
The gear signal is sent to the signal processing module of the monitoring terminal by the machine driving contact making device;
The gear signal is carried out processing and obtains processing signal by the signal processing module of the monitoring terminal, and by the processing Signal is transferred to the display module of the monitoring terminal.
CN201811572094.4A 2018-12-21 2018-12-21 A kind of detection system and method for distribution transforming gear state Pending CN109406917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811572094.4A CN109406917A (en) 2018-12-21 2018-12-21 A kind of detection system and method for distribution transforming gear state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811572094.4A CN109406917A (en) 2018-12-21 2018-12-21 A kind of detection system and method for distribution transforming gear state

Publications (1)

Publication Number Publication Date
CN109406917A true CN109406917A (en) 2019-03-01

Family

ID=65460484

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811572094.4A Pending CN109406917A (en) 2018-12-21 2018-12-21 A kind of detection system and method for distribution transforming gear state

Country Status (1)

Country Link
CN (1) CN109406917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332353A (en) * 2019-07-05 2019-10-15 嵊州市格伦电子机械科技有限公司 A kind of plug valve of driving switch charged signal control function structure

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2336385Y (en) * 1997-09-24 1999-09-01 周宏铎 Microcomputerized automatic testing and handling device for taps of transformer
US6718842B1 (en) * 1998-07-16 2004-04-13 Fico Triad Shift lever unit
CN202418544U (en) * 2011-12-12 2012-09-05 浙江吉利汽车研究院有限公司 Gear recognition device of manual transmission
CN102944743A (en) * 2012-10-25 2013-02-27 长兴县供电局 Detection instrument, detection system and detection method for distribution and transformation tapping point gear
CN203397957U (en) * 2013-07-12 2014-01-15 广州市德百顺电气科技有限公司 Shift indicating device of on-load tap-changer
CN206193110U (en) * 2016-11-22 2017-05-24 云南电网有限责任公司电力科学研究院 Distribution transformer gear measuring device
CN106783018A (en) * 2016-11-22 2017-05-31 云南电网有限责任公司电力科学研究院 A kind of distribution transformer gear visual device
CN206236567U (en) * 2016-10-17 2017-06-09 平高集团有限公司 A kind of shunting switch and its gear detecting mechanism
CN206992997U (en) * 2017-07-25 2018-02-09 国网江西省电力公司萍乡市湘东区供电分公司 A kind of band distribution transformer gear adjusting device that mechanically and electrically double source indicates
CN108269705A (en) * 2018-02-11 2018-07-10 宁波安德奥电力设备有限公司 The more gears of pull-type have load strip-shape tap switch

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2336385Y (en) * 1997-09-24 1999-09-01 周宏铎 Microcomputerized automatic testing and handling device for taps of transformer
US6718842B1 (en) * 1998-07-16 2004-04-13 Fico Triad Shift lever unit
CN202418544U (en) * 2011-12-12 2012-09-05 浙江吉利汽车研究院有限公司 Gear recognition device of manual transmission
CN102944743A (en) * 2012-10-25 2013-02-27 长兴县供电局 Detection instrument, detection system and detection method for distribution and transformation tapping point gear
CN203397957U (en) * 2013-07-12 2014-01-15 广州市德百顺电气科技有限公司 Shift indicating device of on-load tap-changer
CN206236567U (en) * 2016-10-17 2017-06-09 平高集团有限公司 A kind of shunting switch and its gear detecting mechanism
CN206193110U (en) * 2016-11-22 2017-05-24 云南电网有限责任公司电力科学研究院 Distribution transformer gear measuring device
CN106783018A (en) * 2016-11-22 2017-05-31 云南电网有限责任公司电力科学研究院 A kind of distribution transformer gear visual device
CN206992997U (en) * 2017-07-25 2018-02-09 国网江西省电力公司萍乡市湘东区供电分公司 A kind of band distribution transformer gear adjusting device that mechanically and electrically double source indicates
CN108269705A (en) * 2018-02-11 2018-07-10 宁波安德奥电力设备有限公司 The more gears of pull-type have load strip-shape tap switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332353A (en) * 2019-07-05 2019-10-15 嵊州市格伦电子机械科技有限公司 A kind of plug valve of driving switch charged signal control function structure

Similar Documents

Publication Publication Date Title
RU2690003C2 (en) Method and system of modular energy saving
CN204649929U (en) Miniature relay protection brake switch tester
CN109406917A (en) A kind of detection system and method for distribution transforming gear state
CN108501042A (en) A kind of bionic eye of array of magnetic dipoles control
CN106787152A (en) Monitoring power distribution system and electric power system
CN108124470A (en) A kind of computer room website health degree computational methods and its monitoring system
CN207007941U (en) A kind of insulating megger
CN106253460B (en) A kind of device and method of the prolonging service life of battery for computer room scene
CN110286331A (en) A kind of device and method of battery status real-time estimation
US11887501B1 (en) Portable and interconnectable trainers
CN204496748U (en) A kind of energy storage monitoring experiment and development platform
CN207867001U (en) Battery pack charge-discharge testing device
CN207542781U (en) A kind of power switching arrangement
CN205003934U (en) Protection device is gathered to intelligence electric quantity
CN115754764A (en) Battery pack fault detection positioning device and fault detection positioning method
CN107732864A (en) Intelligent air switch system, mobile terminal and server
CN108957381A (en) A kind of instrument for testing polarity of current transformer
CN209514909U (en) Metering device wiring judges training and examination device
CN209514950U (en) Instrument uses training and examination device
CN209055646U (en) A kind of multifunctional DC power supply system check instrument
CN209514986U (en) It visits one house after another and checks training and examination device
CN106919166B (en) A kind of hardware testing device of vehicle control device
CN220207830U (en) Rotor tail rotor collector ring test equipment
CN110988731A (en) Power module state self-diagnosis device of distribution network automation terminal
CN208538368U (en) Automobile electrically-controlled failure setting device and tutoring system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190301

RJ01 Rejection of invention patent application after publication