CN108963956A - A kind of Intellectualized Switchgear of high-voltage switch gear - Google Patents
A kind of Intellectualized Switchgear of high-voltage switch gear Download PDFInfo
- Publication number
- CN108963956A CN108963956A CN201810687694.9A CN201810687694A CN108963956A CN 108963956 A CN108963956 A CN 108963956A CN 201810687694 A CN201810687694 A CN 201810687694A CN 108963956 A CN108963956 A CN 108963956A
- Authority
- CN
- China
- Prior art keywords
- breaker
- equipment
- voltage switch
- switch gear
- acquisition control
- 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
Links
- 230000003044 adaptive effect Effects 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000006870 function Effects 0.000 claims description 13
- 239000013307 optical fiber Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 241000272814 Anser sp. Species 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a kind of Intellectualized Switchgears of high-voltage switch gear, including breaker acquisition control equipment, breaker operator adaptive polarizing memory voltage time constant, disconnecting link acquisition control equipment, electronic mutual inductor, sensor and intelligent control device, the front end of the intelligent control device is connected with the rear end of breaker acquisition control equipment, disconnecting link acquisition control equipment, electronic mutual inductor and sensor respectively, and the breaker operator adaptive polarizing memory voltage time constant is connected with breaker acquisition control equipment;The present invention realizes intelligentized control method and the data acquisition, data sharing of conventional high-tension switch by the acquisition control equipment that is mounted on primary equipment, sensor, reduce the cable and connector quantity of primary equipment, improve the reliability and intelligent level of intelligent substation primary equipment, the manufacturing cost of high-voltage switch gear is reduced simultaneously, solves high-tension switch gear wiring complexity and technical problem difficult in maintenance.
Description
Technical field
The invention belongs to high-voltage switch gear technical fields, and in particular to a kind of Intellectualized Switchgear of high-voltage switch gear.
Background technique
High-tension switch gear is the important component in electric system primary equipment, for cutting off or being closed primary equipment
No-load current and load current.The switching of primary equipment can be realized when normal operation by high-voltage switch gear.When certain in system
When a part breaks down, by cooperating with relay protection, the faulty component in primary system can be cut off rapidly, protected
The safe operation of card system no failure part, reduces scope of power outage, prevents fault spread.
Traditional substation's high-voltage switch equipment and measure and control device, relay protection, routine operation case etc. are secondary to be set
Standby cooperation, all secondary devices are mounted on master control room, protective chamber, pass through electricity between high-tension switch gear signal and secondary device
Cable point-to-point connection.
Intelligent substation high-voltage switch equipment and measure and control device, protective relaying device, intelligent terminal, combining unit etc. two
Secondary device cooperation, measure and control device, protective relaying device are mounted on master control room, protective chamber, and intelligent terminal, combining unit are mounted on
Collect in control cabinet on the spot, wherein intelligent terminal realizes the decentralization of routine operation box function, and combining unit realizes sampling functions
Decentralization.Although the program reduces the cable connection between traditional substation's high-tension switch gear and secondary device, but high pressure
Switch disconnector mechanism case every cutter mechanism case, earthing knife-switch mechanism case and collects that contact cable between control cabinet still more, and deposits
The phenomenon that repeating bracing wire, field connection complexity is caused, many unreliable factors are brought.In addition current intelligent operation box
It being installed in special primary equipment cabinet, various functions concentrate in the same device, and primary equipment cabinet narrow space,
It is in actual motion maintenance and inconvenient.
Summary of the invention
To solve the above problems, the present invention proposes a kind of Intellectualized Switchgear of high-voltage switch gear, high-tension switch gear is realized
Intelligentized control method, solve that high-tension switch gear wiring is complicated and technical problem difficult in maintenance.
The present invention adopts the following technical scheme that, a kind of Intellectualized Switchgear of high-voltage switch gear, which is characterized in that including open circuit
Device acquisition control equipment, breaker operator adaptive polarizing memory voltage time constant, disconnecting link acquisition control equipment, electronic mutual inductor, sensor and intelligence
Can control equipment, the front end of the intelligent control device respectively with breaker acquisition control equipment, disconnecting link acquisition control equipment, electricity
Minor mutual inductor is connected with the rear end of sensor, the breaker operator adaptive polarizing memory voltage time constant and breaker acquisition control equipment phase
Even, in which:
Breaker acquisition control equipment is mounted on outside high-voltage switch circuit breaker mechanism case, for acquiring circuit breaker position number
Accordingly and the division of breaker controls, and sends data to intelligent control device;
Disconnecting link acquisition control equipment is mounted on outside high-voltage switch gear switch mechanism case, for acquire disconnecting link position data and
Disconnecting link opening and closing control, and send data to intelligent control device;
Breaker operator adaptive polarizing memory voltage time constant is mounted on outside high-voltage switch circuit breaker mechanism case, for controlling for breaker acquisition
Control equipment transmission monitoring data and the control instruction for realizing breaker acquisition control equipment;
Electronic mutual inductor is mounted in high-voltage switch circuit breaker tank body, for acquire electric mutual inductor current sensor and
The output signal of voltage sensor is converted into digital data transmission to intelligent control device;
Sensor is mounted on primary equipment side, including SF6 sensor and displacement sensor, for measuring high-voltage switch gear SF6
Gas pressure and high-voltage switch contact run-length data, and send data to intelligent control device;
Intelligent control device is mounted on collecting in control cabinet on the spot for high-voltage switch gear, sets for receiving breaker acquisition control
Standby, disconnecting link acquisition control equipment, the data of electronic mutual inductor and sensor transmissions, receive the high-voltage switch gear control of bay device
System order, and communicated with protection measuring and controlling equipment.
Preferably, the intelligent control device is forwarded directly to open circuit for the high-voltage switch gear control command of bay device
Device acquisition control equipment and disconnecting link acquisition control equipment, intelligent control device rear end send SV sampling to point mode by fiber optic point
Data and GOOSE switching value data are to protecting measuring and controlling equipment.
Preferably, the breaker operator adaptive polarizing memory voltage time constant of the breaker acquisition control equipment and front end is in breaker mechanism
By cable connection outside case, it is connect with the intelligent control device of rear end by optical fiber.
Preferably, the disconnecting link acquisition control equipment uses external socket connector type mounting means, and front end is that aviation terminal connects
Mouthful, it is docked with the aviation terminal interface of primary equipment, rear end is connect with intelligent control device by optical fiber.
Preferably, the electronic mutual inductor is connect by optical fiber with intelligent control device, based on SV agreement with serial number
The form of word optical signal exports data to intelligent control device.
Preferably, the sensor sends data to intelligent control device by RS485 serial communication mode.
It preferably, further include Temperature Humidity Sensor in the breaker acquisition control equipment, for measuring breaker acquisition
Real time temperature and humidity data inside equipment are controlled, and sends data to intelligent control device.
It preferably, further include Temperature Humidity Sensor in the disconnecting link acquisition control equipment, for measuring disconnecting link acquisition control
Real time temperature and humidity data inside equipment, and send data to intelligent control device.
Preferably, the operation that the breaker operator adaptive polarizing memory voltage time constant executes include: protection breaker tripping and closing, manual divide-shut brake,
Circuit breaker position monitoring, closing circuit monitoring, trip circuit monitoring, closing a floodgate keeps function and relay tip monitoring, tripping to protect
It holds function and signal monitoring and operation power monitoring and anti-bouncing function is closed in relay tip monitoring, hand.
It invents achieved the utility model has the advantages that the present invention is a kind of Intellectualized Switchgear of high-voltage switch gear, realizes high-voltage switch gear
The intelligentized control method of equipment solves high-tension switch gear wiring complexity and technical problem difficult in maintenance;By being mounted on one
Acquisition control equipment, sensor on secondary device realize intelligentized control method and the data acquisition, data sharing of conventional high-tension switch;
The cable and connector quantity that primary equipment is reduced by all -fiber access of intelligent control device, it is primary to improve intelligent substation
The reliability and intelligent level of equipment, while reducing the manufacturing cost of high-voltage switch gear;By the way of distribution installation, do not have
There is special equipment cabinet, is installed near primary switch nearby, each equipment is a functional module, any one equipment
It is abnormal not influence the function of other equipment, and the method directly replaced can be used and solve failure, it maintains easily.
Detailed description of the invention
Fig. 1 is Intellectualized Switchgear schematic diagram of the invention.
Specific embodiment
Below according to attached drawing and technical solution of the present invention is further elaborated in conjunction with the embodiments.
Fig. 1 is Intellectualized Switchgear schematic diagram of the invention,
A kind of Intellectualized Switchgear of high-voltage switch gear, breaker acquisition control equipment, breaker operator adaptive polarizing memory voltage time constant, knife
Lock acquisition control equipment, electronic mutual inductor, sensor and intelligent control device, the front end of the intelligent control device respectively with
Breaker acquisition control equipment, disconnecting link acquisition control equipment, electronic mutual inductor are connected with the rear end of sensor, the breaker
Operational relay equipment is connected with breaker acquisition control equipment, in which:
Breaker acquisition control equipment is mounted on outside high-voltage switch circuit breaker mechanism case, with the breaker operator of front end after
Electrical equipment, by cable connection, is connect with the intelligent control device of rear end by optical fiber outside circuit breaker mechanism case;
Breaker acquisition control equipment uses the component of high-protection level, meets outdoor service condition, by opening into returning
Road acquires circuit breaker position, breaker operator adaptive polarizing memory voltage time constant feedback position and alarm signal etc., is broken by outputing circuit and realizing
The division of road device controls;Real time temperature and humidity data inside breaker acquisition control equipment are measured by Temperature Humidity Sensor;
Send data to intelligent control device;
Breaker operator adaptive polarizing memory voltage time constant is mounted on outside high-voltage switch circuit breaker mechanism case, logical with front end breaker mechanism
Cable connection is crossed, and protection breaker tripping and closing, manual divide-shut brake, circuit breaker position are realized by the breaker acquisition control equipment of rear end
Monitoring, closing circuit monitoring, trip circuit monitoring, close a floodgate keep function and relay tip monitoring, tripping keep function and after
Position monitoring, hand close signal monitoring and operation power monitoring after the monitoring of electric appliance contact, conjunction;
It include motor energy storage electric loop and anti-jump loop in primary equipment breaker mechanism, but its relay for using
Can be poor, breaker operator adaptive polarizing memory voltage time constant supports double jump circle, and has motor energy storage electric loop and anti-jump loop, substitution one
Motor energy storage electric loop and anti-jump loop in secondary device breaker mechanism realize anti-bouncing function.
Isolation switch, grounding switch disconnecting link acquisition control equipment be mounted on outside high-voltage switch gear switch mechanism case, use
External socket connector type installation, Front-end Design are directly docked, rear end at aviation terminal interface with the aviation terminal interface of primary equipment
It is connect with intelligent control device by optical fiber;
Disconnecting link acquisition control equipment uses the component of high-protection level, meets outdoor service condition, passes through open entry loop
Disconnecting link position, alarm signal etc. are acquired, realizes that the division of disconnecting link controls by outputing circuit, knife is measured by Temperature Humidity Sensor
Real time temperature and humidity data inside lock acquisition control equipment;Send data to intelligent control device.
Electronic mutual inductor is mounted in high-voltage switch circuit breaker tank body, for acquire electric mutual inductor current sensor and
The output signal of voltage sensor is converted into digital signal, then carries out integral transformation and restores tested current signal and tested electricity
Signal is pressed, and is exported by IEC61850-9-2 agreement to intelligent control device.
Sensor is mounted on primary equipment side, including SF6 sensor and displacement sensor, for measuring high-voltage switch gear SF6
Gas pressure and high-voltage switch contact run-length data, and intelligent control is sent data to by RS485 serial communication mode and is set
It is standby.
Intelligent control device is mounted on collecting in control cabinet on the spot for high-voltage switch gear, sets for receiving breaker acquisition control
Standby, disconnecting link acquisition control equipment, the data of electronic mutual inductor and sensor, and communicated with protection measuring and controlling equipment;
Intelligent control device front end receives breaker acquisition control equipment, disconnecting link acquisition control by point-to-point optical fiber solutions
The data of equipment and electronic mutual inductor acquisition equipment receive 4~20mA or 0~5V mode by the small signaling interface of analog quantity
Sensing data;Control command is transmitted to intelligent control device by bay device, and is forwarded directly to by intelligent control device
Breaker acquisition control equipment and disconnecting link acquisition control equipment protect whole group actuation time to shorten;Intelligent control device rear end
SV sampled data and GOOSE switching value data are sent to protecting measuring and controlling equipment to point mode by fiber optic point.Intelligent control device
By information sharing, the quantity of high-voltage switch gear spare contact is reduced, improves the reliability and intelligence water of high-tension switch gear
It is flat.
The present invention is turned the signal of high-voltage switch gear and primary voltage current-mode analog quantity by the acquisition control equipment of site
It changes digital quantity into, is communicated by optical fiber and cable with the intelligent control device collected in control cabinet on the spot is mounted on, reduced
The quantity of high-voltage switch gear spare contact improves the reliability and intelligent level of high-tension switch gear.It can save simultaneously big
The cable and connector of amount reduce cost of labor, to reduce the cost of high-voltage switch gear mechanism.
One embodiment of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of Intellectualized Switchgear of high-voltage switch gear, which is characterized in that including breaker acquisition control equipment, breaker operator
Adaptive polarizing memory voltage time constant, disconnecting link acquisition control equipment, electronic mutual inductor, sensor and intelligent control device, the intelligent control are set
Standby front end respectively with breaker acquisition control equipment, disconnecting link acquisition control equipment, electronic mutual inductor and sensor rear end
It is connected, the breaker operator adaptive polarizing memory voltage time constant is connected with breaker acquisition control equipment, in which:
Breaker acquisition control equipment is mounted on outside high-voltage switch circuit breaker mechanism case, for acquire circuit breaker position data with
And the division control of breaker, and send data to intelligent control device;
Disconnecting link acquisition control equipment is mounted on outside high-voltage switch gear switch mechanism case, for acquiring disconnecting link position data and disconnecting link
Division control, and send data to intelligent control device;
Breaker operator adaptive polarizing memory voltage time constant is mounted on outside high-voltage switch circuit breaker mechanism case, for setting for breaker acquisition control
Standby transmission monitoring data and the control instruction for realizing breaker acquisition control equipment;
Electronic mutual inductor is mounted in high-voltage switch circuit breaker tank body, for acquiring electric mutual inductor current sensor and voltage
The output signal of sensor is converted into digital data transmission to intelligent control device;
Sensor is mounted on primary equipment side, including SF6 sensor and displacement sensor, for measuring high-voltage switch gear SF6 gas
Pressure and high-voltage switch contact run-length data, and send data to intelligent control device;
Intelligent control device is mounted on collecting in control cabinet on the spot for high-voltage switch gear, for receive breaker acquisition control equipment,
Disconnecting link acquisition control equipment, the data of electronic mutual inductor and sensor transmissions receive the high-voltage switch gear control of bay device
Order, and communicated with protection measuring and controlling equipment.
2. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1, which is characterized in that the intelligent control is set
It is standby that breaker acquisition control equipment and disconnecting link acquisition control are forwarded directly to for the high-voltage switch gear control command of bay device
Equipment, intelligent control device rear end send SV sampled data and GOOSE switching value data to protection to point mode by fiber optic point
Measuring and controlling equipment.
3. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1 or 2, which is characterized in that the breaker
The breaker operator adaptive polarizing memory voltage time constant of acquisition control equipment and front end passes through cable connection outside circuit breaker mechanism case, with rear end
Intelligent control device pass through optical fiber connect.
4. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1 or 2, which is characterized in that the disconnecting link is adopted
Collection control equipment uses external socket connector type mounting means, and front end is aviation terminal interface, connects with the aviation terminal of primary equipment
Mouth docking, rear end is connect with intelligent control device by optical fiber.
5. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1 or 2, which is characterized in that the electronic type
Mutual inductor is connect by optical fiber with intelligent control device, based on SV agreement in the form of serial digital optical signal by data export to
Intelligent control device.
6. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1 or 2, which is characterized in that the sensor
Intelligent control device is sent data to by RS485 serial communication mode.
7. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1, which is characterized in that the breaker acquisition
Controlling in equipment further includes Temperature Humidity Sensor, for measuring real time temperature and humidity number inside breaker acquisition control equipment
According to, and send data to intelligent control device.
8. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1, which is characterized in that the disconnecting link acquisition control
It further include Temperature Humidity Sensor in control equipment, for measuring real time temperature and humidity data inside disconnecting link acquisition control equipment, and
Send data to intelligent control device.
9. a kind of Intellectualized Switchgear of high-voltage switch gear according to claim 1, which is characterized in that the breaker operator
The operation that adaptive polarizing memory voltage time constant executes includes: protection breaker tripping and closing, manual divide-shut brake, circuit breaker position monitoring, closing circuit monitoring, jumps
The monitoring of lock circuit, closing a floodgate keeps function and relay tip monitoring, tripping that function and relay tip monitoring, hand is kept to close signal
Monitoring and operation power monitoring and anti-bouncing function.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810687694.9A CN108963956A (en) | 2018-06-28 | 2018-06-28 | A kind of Intellectualized Switchgear of high-voltage switch gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810687694.9A CN108963956A (en) | 2018-06-28 | 2018-06-28 | A kind of Intellectualized Switchgear of high-voltage switch gear |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108963956A true CN108963956A (en) | 2018-12-07 |
Family
ID=64487546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810687694.9A Pending CN108963956A (en) | 2018-06-28 | 2018-06-28 | A kind of Intellectualized Switchgear of high-voltage switch gear |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108963956A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110212641A (en) * | 2019-05-17 | 2019-09-06 | 浙江华云电力工程设计咨询有限公司 | A kind of GIS switch combination electrical body terminal, site integrate terminal |
CN111478188A (en) * | 2020-04-01 | 2020-07-31 | 南京合智电力科技有限公司 | Intelligent high-voltage switch |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202121209U (en) * | 2011-05-27 | 2012-01-18 | 平高集团有限公司 | Intelligent high voltage switch device |
CN202565035U (en) * | 2012-06-04 | 2012-11-28 | 浙江开关厂有限公司 | Gis microcomputer control system |
CN102891533A (en) * | 2012-09-19 | 2013-01-23 | 河南平高电气股份有限公司 | 800kV intelligent circuit breaker |
CN106059086A (en) * | 2016-07-11 | 2016-10-26 | 西安工程大学 | Box type transformer station current-carrying fault prediction system and application thereof |
-
2018
- 2018-06-28 CN CN201810687694.9A patent/CN108963956A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202121209U (en) * | 2011-05-27 | 2012-01-18 | 平高集团有限公司 | Intelligent high voltage switch device |
CN202565035U (en) * | 2012-06-04 | 2012-11-28 | 浙江开关厂有限公司 | Gis microcomputer control system |
CN102891533A (en) * | 2012-09-19 | 2013-01-23 | 河南平高电气股份有限公司 | 800kV intelligent circuit breaker |
CN106059086A (en) * | 2016-07-11 | 2016-10-26 | 西安工程大学 | Box type transformer station current-carrying fault prediction system and application thereof |
Non-Patent Citations (1)
Title |
---|
钟建英: "智能高压开关设备技术研究进展", 《高压电器》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110212641A (en) * | 2019-05-17 | 2019-09-06 | 浙江华云电力工程设计咨询有限公司 | A kind of GIS switch combination electrical body terminal, site integrate terminal |
CN111478188A (en) * | 2020-04-01 | 2020-07-31 | 南京合智电力科技有限公司 | Intelligent high-voltage switch |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111146755A (en) | Feeder terminal and line protection device | |
CN105449865A (en) | Intelligent (feeder terminal unit) FTU used for fault positioning and isolating for distribution network | |
CN103107595B (en) | Substation automation system in prefabricated transformer substation | |
CN209374937U (en) | Power distribution cabinet monitoring terminal and power distribution cabinet | |
CN208478943U (en) | A kind of remote control intelligent household distribution box | |
CN103325627A (en) | Fast and intelligent 10KV pole-mounted breaker | |
CN201417966Y (en) | GIS intelligent control cabinet | |
CN101969191B (en) | Optical fiber blocking override-avoiding tripping system | |
CN106785982A (en) | A kind of high-tension switch gear | |
WO2014044024A1 (en) | 800kv intelligent circuit breaker | |
CN110336243A (en) | Long-distance superconducting cable comprehensive monitoring protection device | |
CN103579948B (en) | Integrated power transformer intelligent assembly | |
CN211377370U (en) | Intelligent distributed power distribution terminal with communication and optical fiber differential protection functions | |
CN108963956A (en) | A kind of Intellectualized Switchgear of high-voltage switch gear | |
CN109119283A (en) | A kind of one or two fusion outdoor SF6 gas breakers | |
CN203445696U (en) | Power distribution line online monitoring system | |
CN202796772U (en) | 10kV rapid intelligent column breaker | |
CN201674143U (en) | Mine general handcart type vacuum power distribution cabinet | |
CN112180894A (en) | Electric performance detection device for pole-mounted circuit breaker controller | |
CN208272608U (en) | Overcurrent protection relay circuit and overcurrent protection relay | |
CN102946092A (en) | Line transformer protection device with tripping and closing current measuring function | |
CN207442436U (en) | A kind of arclight busbar protective device | |
CN214313030U (en) | Intelligent pole-mounted vacuum circuit breaker for transformation and upgrading | |
CN201629565U (en) | Switch cabinet arc light protection system with compact structure | |
CN208443924U (en) | A kind of pair of line loss realizes the circuit breaker system of management through quantification |
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: 20181207 |
|
RJ01 | Rejection of invention patent application after publication |