CN203398873U - Transformer station tour inspection automatic recording system - Google Patents

Transformer station tour inspection automatic recording system Download PDF

Info

Publication number
CN203398873U
CN203398873U CN201320355365.7U CN201320355365U CN203398873U CN 203398873 U CN203398873 U CN 203398873U CN 201320355365 U CN201320355365 U CN 201320355365U CN 203398873 U CN203398873 U CN 203398873U
Authority
CN
China
Prior art keywords
touch panel
binding post
switch enclosure
inspection
maked
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.)
Expired - Lifetime
Application number
CN201320355365.7U
Other languages
Chinese (zh)
Inventor
刘尚平
肖锋
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.)
State Grid Corp of China SGCC
State Grid Sichuan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Sichuan Electric Power 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.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Sichuan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201320355365.7U priority Critical patent/CN203398873U/en
Application granted granted Critical
Publication of CN203398873U publication Critical patent/CN203398873U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations

Landscapes

  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The utility model discloses a transformer station tour inspection automatic recording system. The system comprises at least one electric device to be inspected, each electric device to be inspected is connected with a corresponding measurement and control device, and each electric device to be inspected is also provided with a tour inspection button which controls the electric connection line between the electric device to be inspected and the measurement and control device to be switched at a connecting state and a disconnecting state. The transformer station tour inspection automatic recording system is simple in structure and convenient to operate, and the problem of effective and in-place inspection of tour inspection personnel can be solved in a low-cost mode and the records can be generated for queries simply by arranging the tour inspection button at the electric device to be inspected.

Description

Substation inspection checks automatic production record
Technical field
The utility model relates to pure water preparation field, particularly, relates to a kind of substation inspection and checks automatic production record.
Background technology
In order to guarantee the safe and stable operation of electric substation automation system, standard automation of transformation substations equipment day-to-day operation is safeguarded, meets Unattended substation operation needs simultaneously, automation of transformation substations equipment must be included in to substation operation unified management.Electric substation automation system current check (patrolling and examining) scope comprises automation special inverter or ups power, observing and controlling cabinet, telemechanical cabinet, monitors backstage, the network equipment, Data special web cabinet, GPS etc., and part correlation function.
Along with the development of electronic information and the application of supervisory control system, part transformer station adopts the mode of remote monitoring, as CN201220453510.0 discloses a kind of transformer station can only cruising inspection system, this system is carried out remote monitoring by data acquisition unit and video camera to becoming electric equipment.The advantage of this routine inspection mode is to adopt equipment routing inspection to replace manual inspection, and patrol officer is by the novel on-line monitoring that carries out of running status of long-range video image information and equipment.But because power equipment belongs to more special professional equipment, only by on-line monitoring, can not understand power equipment full detail in the course of the work completely, if get used to on-line monitoring, do not have professional to patrol and examine to scene, may cause potential safety hazard.Therefore the remote online monitoring of converting equipment can not be replaced the regular routine inspection of professional completely.Patrolling and examining except the daily on-line monitoring of automated system of substation equipment, also should adopt professional to make regular check on the mode combining, and special maintenance personnel carry out scene and patrol and examine within the time cycle of appointment.
Along with the application of extensive centralized monitor, the inspection of field apparatus whether is put in place and becomes a managerial difficult point.Now substantially all take original paper record, part is taked the auxiliary record of making an inspection tour of PDA.Take original paper record, checking whether puts in place relies on personnel conscious, has the problem that supervision is difficult; Take the auxiliary special equipments such as record of making an inspection tour of PDA, exist cost high, use complicated problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of substation inspection and checks automatic production record, and this system is simple, convenient, can solve cheaply the walkaround inspection personnel inspection problem that effectively puts in place, and generate record.
The utility model solves the problems of the technologies described above adopted technical scheme: substation inspection checks automatic production record, comprise at least one power equipment to be maked an inspection tour, each power equipment to be maked an inspection tour all measure and control device corresponding with is electrically connected to, and at each power equipment to be maked an inspection tour place, is also provided with the walkaround inspection button that the electrical interconnection controlled between power equipment to be maked an inspection tour, measure and control device switches connecting, under off-state.The measure and control device that measure and control device adopts existing substation inspection to check, this system is by locating to arrange a walkaround inspection button at power equipment to be maked an inspection tour (being on-the-spot power equipment), when making regular check on, professional reaches the spot to this when making an inspection tour power equipment and make an inspection tour or check, only need to press or touch walkaround inspection button, the electrical interconnection that can control between power equipment to be maked an inspection tour, measure and control device is connected, circuit can be passed the information such as the time of professional's Site Detection, device parameter back measure and control device after connecting.Professional, leave after making an inspection tour power equipment, the electrical interconnection between power equipment to be maked an inspection tour, measure and control device is in off-state, and this is simple in structure, convenient, can solve cheaply the walkaround inspection personnel inspection problem that effectively puts in place.
Further, described measure and control device is all connected with complex automatic system monitoring backstage.After the electrical interconnection connection wait making an inspection tour between power equipment, measure and control device, measure and control device can further be transferred to the information of acquisition complex automatic system monitoring backstage, the record that formation can be inquired about.
In order to ensure the electric current on the electrical interconnection between power equipment to be maked an inspection tour, measure and control device, be no more than safety value, described in electrical interconnection between power equipment to be maked an inspection tour, measure and control device be provided with current-limiting resistance.
The first implementation as walkaround inspection button, described walkaround inspection button comprises switch enclosure, spring, button, touch panel, power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post, the second binding post, touch panel is placed in switch enclosure and touch panel one end is fixedly connected with touch panel with one end of button, the other end of button extends to switch enclosure outside, between the other end of touch panel and switch enclosure inwall, be provided with spring, and the first binding post, the second binding post is between touch panel and switch enclosure inwall.
The second implementation as walkaround inspection button, described walkaround inspection button comprises switch enclosure, shifting block, stir touch panel, power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post, the second binding post, stir touch panel by horizontal touch panel, form with the vertically disposed longitudinal touch panel in horizontal touch panel one end, laterally end face of touch panel and binding post, longitudinally touch panel is relative with the second binding post, be positioned at the first binding post, the switch enclosure place of the second binding post top is provided with stirs groove, laterally another end face of touch panel is fixedly connected with one end of shifting block, the other end of shifting block extends to switch enclosure outside through stirring groove, shifting block can in stirring groove, move and control longitudinal touch panel away from or contact the second binding post.
The third implementation as walkaround inspection button, described walkaround inspection button comprises switch enclosure, spring, touch panel, electrical interconnection between power equipment to be maked an inspection tour, measure and control device extends in switch enclosure and forms the first binding post, the second binding post, touch panel is placed in switch enclosure, between one end of touch panel and switch enclosure inwall, be provided with spring, and the first binding post, the second binding post are between touch panel and switch enclosure inwall, and the switch enclosure box body of the other end of touch panel top is the flexible enclosure press surface that can press.
The 4th kind of implementation as walkaround inspection button, described walkaround inspection button comprises switch enclosure, spring, touch panel, electrical interconnection between power equipment to be maked an inspection tour, measure and control device extends in switch enclosure and forms the first binding post, the second binding post, touch panel is placed in switch enclosure, between one end of touch panel and switch enclosure inwall, be provided with spring, and the first binding post, the second binding post are between touch panel and switch enclosure inwall, and the switch enclosure box body of the other end of touch panel top is provided with perforate.
The utility model compared with prior art has the following advantages and beneficial effect: the utility model is simple in structure, convenient, only a walkaround inspection button need to be set at power equipment to be maked an inspection tour place, just can solve cheaply the walkaround inspection personnel inspection problem that effectively puts in place, and generate record so that inquiry.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 of the present utility model;
Fig. 2 is the structural representation of embodiment 2 of the present utility model;
Fig. 3 is the structural representation of walkaround inspection button the first structure of the present utility model;
Fig. 4 is the structural representation of walkaround inspection button the second structure of the present utility model;
Fig. 5 is the structural representation of the third structure of walkaround inspection button of the present utility model;
Fig. 6 is the structural representation of walkaround inspection button the first structure of Fig. 5.
In accompanying drawing, corresponding Reference numeral is: 1-walkaround inspection button, and 2-current-limiting resistance, 3-the first binding post, 4-the second binding post, 5-spring, 6-button, 7-touch panel, 8-shifting block, 9-stirs touch panel, 10-flexible enclosure press surface.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, the substation inspection of the present embodiment checks automatic production record, comprise a plurality of power equipments to be maked an inspection tour, be numbered respectively power equipment to be maked an inspection tour (1), power equipment to be maked an inspection tour (n), n is not less than 2 natural number, equipment place at the scene: each power equipment terminal box to be maked an inspection tour installs a walkaround inspection button additional, and access this interval measure and control device by cable, each power equipment to be maked an inspection tour (the on-the-spot power equipment of transformer station) the respectively measure and control device corresponding with is electrically connected to, a measure and control device is only connected with a power equipment to be maked an inspection tour, each measure and control device is all connected with complex automatic system monitoring backstage, and be also provided with and control power equipment to be maked an inspection tour at each power equipment to be maked an inspection tour place, electrical interconnection between measure and control device is being connected, the walkaround inspection button switching under off-state.
Complex automatic system monitoring backstage is a station server, or a computer, or is a processing terminal, and complex automatic system monitoring backstage can be defined as " walkaround inspection " by the switching signal of walkaround inspection button.In order to ensure the electric current on the electrical interconnection between power equipment to be maked an inspection tour, measure and control device, be no more than safety value, electrical interconnection between power equipment to be maked an inspection tour, measure and control device is provided with current-limiting resistance, and resistance sizes can be calculated according to the voltage by circuit and safety electric flow valuve.
Embodiment 2:
As shown in Figure 2, the substation inspection of the present embodiment checks that the difference of automatic production record and embodiment 1 is, the power equipment to be maked an inspection tour of the present embodiment is 2, measure and control device is 1,1 measure and control device is connected with every power equipment to be maked an inspection tour respectively, meanwhile, each power equipment to be maked an inspection tour place is also provided with the walkaround inspection button that the electrical interconnection controlled between power equipment to be maked an inspection tour, measure and control device switches connecting, under off-state.
The present embodiment also can further arrange current-limiting resistance.Embodiment 1 also can be with reference to the technology of the present embodiment, while having vital point position need to set up inspection point provided (and need to increase wait making an inspection tour power equipment) in interval, if measure and control device number of connections is enough, power equipment to be maked an inspection tour so can directly increase walkaround inspection button quantity and introduce measure and control device at power equipment the to be maked an inspection tour place increasing, a measure and control device can according to circumstances access 2 or a plurality of power equipment to be maked an inspection tour.If measure and control device point position is nervous, can increase at the scene a measure and control device.
The walkaround inspection button that the utility model is realized described in embodiment 1 and embodiment 2 has many middle implementations.
As shown in Figure 3, the first implementation for walkaround inspection button, in this scheme, walkaround inspection button 1 comprises switch enclosure, spring 5, button 6, touch panel 7, power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post 3, the second binding post 4, touch panel 7 is placed in switch enclosure and touch panel one end is fixedly connected with touch panel 7 with one end of button 6, the other end of button 6 extends to switch enclosure outside, between the other end of touch panel 7 and switch enclosure inwall, be provided with spring 5, and the first binding post 3, the second binding post 4 is between touch panel 7 and switch enclosure inwall.In this scheme, touch panel 7 can be divided into the composite construction of 2 layers, touch panel 7 is the conductive layer that electric conducting material is made with that end face that the first binding post 3, the second binding post 4 contact, the end face that touch panel 7 is fixedly connected with button 6 is the insulating barrier that electrically non-conductive material is made, touch panel 7 can be that physics is fastenedly connected with being fastenedly connected of button 6, also can be integrative-structure, button 6 also adopts non electrically conductive material to make.This scheme is that the mode by pressing is conducted electricity, the staff who makes an inspection tour press the button 6 until the conductive layer of touch panel 7 by the first binding post 3, the second binding post 4, the information exchange that scene can be maked an inspection tour is crossed measure and control device and is transferred to complex automatic system monitoring backstage, the staff who makes an inspection tour leaves scene or does not press the button at 6 o'clock, touch panel 7 by under the effect at spring 5 elastic force away from the first binding post 3, the second binding post 4, thereby make the first binding post 3, the second binding post 4 can not conducting.
As shown in Figure 4, the second implementation for walkaround inspection button, in this scheme, walkaround inspection button 1 comprises switch enclosure, shifting block 8, stir touch panel 9, power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post 3, the second binding post 4, stir touch panel 9 by horizontal touch panel, form with the vertically disposed longitudinal touch panel in horizontal touch panel one end, laterally end face of touch panel and binding post 3, longitudinally touch panel is relative with the second binding post 4, be positioned at the first binding post 3, the switch enclosure place of the second binding post 4 tops is provided with stirs groove, laterally another end face of touch panel is fixedly connected with one end of shifting block 8, the other end of shifting block 8 extends to switch enclosure outside through stirring groove, shifting block 8 can in stirring groove, move and control longitudinal touch panel away from or contact the second binding post 4.This scheme employing is stirred shifting block 8 mobile mode in stirring groove and is controlled the first binding post 3, the second binding post 4 conductings or disconnection, to reach identification walkaround inspection personnel, whether arrives at on-the-spot object.The shifting block 8 here need to be used insulating material to make.
As Fig. 5, shown in Fig. 6, the third implementation for walkaround inspection button, in this scheme, walkaround inspection button 1 comprises switch enclosure, spring 5, touch panel, power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post 3, the second binding post 4, touch panel 7 is placed in switch enclosure, between one end of touch panel 7 and switch enclosure inwall, be provided with spring 5, and the first binding post 3, the second binding post 4 is between touch panel 7 and switch enclosure inwall, the flexible enclosure press surface 10 of the switch enclosure box body of the other end top of touch panel 7 for pressing.Flexible enclosure press surface can be to be made by electro-insulating rubber, and this programme is also that the mode by pressing realizes conducting and the disconnection that the first binding post 3, the second binding post 4 are controlled in the movement of controlling touch panel.
As the 4th kind of implementation that is walkaround inspection button, the difference of this scheme and the third implementation is, the other end top of touch panel 7 can not be set to flexible enclosure press surface 10, but be provided with perforate on this face switch enclosure box body, make an inspection tour staff and press touch panel 7 by finger being stretched in perforate, conducting and the disconnection of the first binding post 3, the second binding post 4 controlled in the movement that can realize control touch panel.For safety, the touch panel of this scheme is the composite construction of 2 layers, touch panel is the conductive layer that electric conducting material is made with that end face that the first binding post 3, the second binding post 4 contact, and the end face that touch panel 7 is fixedly connected with button 6 is the insulating barrier that electrically non-conductive material is made.
Certainly, in such scheme, added in the situation of current-limiting resistance, even if there is the situation of electric leakage, also can guarantee to make an inspection tour staff's personal safety.
As mentioned above, can well realize the utility model.

Claims (7)

1. substation inspection checks automatic production record, it is characterized in that, comprise at least one power equipment to be maked an inspection tour, each power equipment to be maked an inspection tour all measure and control device corresponding with is electrically connected to, and at each power equipment to be maked an inspection tour place, is also provided with the walkaround inspection button (1) that the electrical interconnection controlled between power equipment to be maked an inspection tour, measure and control device switches connecting, under off-state.
2. substation inspection according to claim 1 checks automatic production record, it is characterized in that, described measure and control device is all connected with complex automatic system monitoring backstage.
3. substation inspection according to claim 1 checks automatic production record, it is characterized in that, described in electrical interconnection between power equipment to be maked an inspection tour, measure and control device be provided with current-limiting resistance (2).
4. according to the substation inspection described in claims 1 to 3 any one, check automatic production record, it is characterized in that, described walkaround inspection button (1) comprises switch enclosure, spring (5), button (6), touch panel (7), power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post (3), the second binding post (4), touch panel (7) is placed in switch enclosure and touch panel one end is fixedly connected with touch panel (7) with one end of button (6), the other end of button (6) extends to switch enclosure outside, between the other end of touch panel (7) and switch enclosure inwall, be provided with spring (5), and the first binding post (3), the second binding post (4) is positioned between touch panel (7) and switch enclosure inwall.
5. according to the substation inspection described in claims 1 to 3 any one, check automatic production record, it is characterized in that, described walkaround inspection button (1) comprises switch enclosure, shifting block (8), stir touch panel (9), power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post (3), the second binding post (4), stir touch panel (9) by horizontal touch panel, form with the vertically disposed longitudinal touch panel in horizontal touch panel one end, laterally end face of touch panel and binding post (3), longitudinally touch panel is relative with the second binding post (4), be positioned at the first binding post (3), the switch enclosure place of the second binding post (4) top is provided with stirs groove, laterally another end face of touch panel is fixedly connected with one end of shifting block (8), the other end of shifting block (8) extends to switch enclosure outside through stirring groove, shifting block (8) can in stirring groove, move and control longitudinal touch panel away from or contact the second binding post (4).
6. according to the substation inspection described in claims 1 to 3 any one, check automatic production record, it is characterized in that, described walkaround inspection button (1) comprises switch enclosure, spring (5), touch panel, power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post (3), the second binding post (4), touch panel (7) is placed in switch enclosure, between one end of touch panel (7) and switch enclosure inwall, be provided with spring (5), and the first binding post (3), the second binding post (4) is positioned between touch panel (7) and switch enclosure inwall, the flexible enclosure press surface (10) of the switch enclosure box body of the other end top of touch panel (7) for pressing.
7. according to the substation inspection described in claims 1 to 3 any one, check automatic production record, it is characterized in that, described walkaround inspection button (1) comprises switch enclosure, spring (5), touch panel, power equipment to be maked an inspection tour, electrical interconnection between measure and control device extends in switch enclosure and forms the first binding post (3), the second binding post (4), touch panel (7) is placed in switch enclosure, between one end of touch panel (7) and switch enclosure inwall, be provided with spring (5), and the first binding post (3), the second binding post (4) is positioned between touch panel (7) and switch enclosure inwall, the switch enclosure box body of the other end top of touch panel (7) is provided with perforate.
CN201320355365.7U 2013-06-20 2013-06-20 Transformer station tour inspection automatic recording system Expired - Lifetime CN203398873U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320355365.7U CN203398873U (en) 2013-06-20 2013-06-20 Transformer station tour inspection automatic recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320355365.7U CN203398873U (en) 2013-06-20 2013-06-20 Transformer station tour inspection automatic recording system

Publications (1)

Publication Number Publication Date
CN203398873U true CN203398873U (en) 2014-01-15

Family

ID=49910371

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320355365.7U Expired - Lifetime CN203398873U (en) 2013-06-20 2013-06-20 Transformer station tour inspection automatic recording system

Country Status (1)

Country Link
CN (1) CN203398873U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105072164A (en) * 2015-07-22 2015-11-18 国网山东乳山市供电公司 Transformer substation in-place inspection monitoring device and monitoring method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105072164A (en) * 2015-07-22 2015-11-18 国网山东乳山市供电公司 Transformer substation in-place inspection monitoring device and monitoring method thereof

Similar Documents

Publication Publication Date Title
CN101854078B (en) Monitoring system and method of operation condition of digitalized substation secondary device
CN202772673U (en) Intelligent transformer substation inspection system
CN104701980A (en) GPRS remotely monitored intelligent box-type transformer substation
CN202495807U (en) Remote centralized measurement and control system for power distribution network
CN103713216A (en) Intelligent on-line monitoring device of medium voltage switchgear
CN208984136U (en) Substation parameters acquisition device and system
CN102945056A (en) Box type temperature and humidity control system
CN103576057A (en) On-line insulation monitoring system and on-line insulation monitoring method
CN103066693A (en) Intelligent terminal for power distribution network
CN102338835B (en) Power quality dynamic monitoring system
CN103514733A (en) Centralized meter reading terminal for realization of power distribution and power utilization information collection
CN203135572U (en) Transformer substation DC device state monitoring system
CN203398873U (en) Transformer station tour inspection automatic recording system
CN203368143U (en) Low-voltage distribution integrated monitoring device
CN203519062U (en) Switch cabinet partial discharge intelligent on-line monitoring system
CN202034825U (en) Intelligent comprehensive device of medium-voltage switch
CN101651361A (en) Integrated automation system of substation
CN105553516A (en) Medium voltage power line communication network broadcasting system
CN203456949U (en) Intelligent assembly cabinet for transformer station circuit breaker
CN206671470U (en) A kind of ring main unit on-line monitoring system
CN202550678U (en) Network communication system used for intelligent transformer substation
CN110221140A (en) Distribution power automation terminal intelligent detecting instrument
CN202393811U (en) On-line monitoring apparatus for lightning arrester for protecting series compensation capacitor
CN202759292U (en) An intelligent box-type transformer station
CN202676202U (en) High-voltage-line current temperature wireless detection device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20140115

CX01 Expiry of patent term