CN203133246U - On-line switch monitoring device - Google Patents
On-line switch monitoring device Download PDFInfo
- Publication number
- CN203133246U CN203133246U CN 201220704937 CN201220704937U CN203133246U CN 203133246 U CN203133246 U CN 203133246U CN 201220704937 CN201220704937 CN 201220704937 CN 201220704937 U CN201220704937 U CN 201220704937U CN 203133246 U CN203133246 U CN 203133246U
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Abstract
The utility model discloses an on-line switch monitoring device which comprises a DSP plug-in, a current sensor plug-in, a displacement sensor plug-in, an input plug-in, a SMV plug-in, an RS 485 communication plug-in and a power supply plug-in, where the plug-ins are in data connection through backboard buses. The monitoring device integrates all monitoring contents into one IED, and allows monitoring of the mechanical property of a switch, the current characteristics of opening or closing coils, the current characteristics of an energy storage motor, the insulation characteristic and the spaced lightning arresters.
Description
Technical field
The utility model relates to the electric power primary equipment on-Line Monitor Device of using in conventional or intelligent transformer station.
Background technology
At present, along with the fast development of electric system, whole electric power networks is huge day by day and complicated, and country and society have higher requirement to the stable operation of electrical network.The electrical network main equipment must keep good health status and equipment availability, realizes safe and reliable operation, could ensure power grid operation and improve power supply reliability.Repair based on condition of component is the preventative operation that the time of day according to power equipment carries out, and the today of constantly enlarge at electrical network, the user is more and more higher to the requirement of electric network reliability, repair based on condition of component shows irreplaceable effect more.Switch on-line monitoring equipment can according to its various technical parameters and characteristic variations under running status, determine relatively by analyzing whether equipment needs maintenance based on the actual operating mode of equipment.According to the information that status monitoring obtains, in conjunction with architectural characteristic and parameter and the environmental baseline that oneself knows, in conjunction with the operation history of this equipment, determine character, degree, classification and the position of equipment failure, and provide comprehensive risk assessment.
SF6 insulating monitoring IED, mechanical property monitoring IED generally all can install in the switch on-line monitoring manufacturer of present stage and switch gap master IED finishes the various monitoring requirements of switch, equipment disperses, integrated level is poor, screen cabinet space anxiety, be unfavorable for very much integrated design, and on-the-spot installation and maintenance inconvenience.
In view of this, the inventor studies improvement to existing switch on-line monitoring equipment, and this case produces thus.
The utility model content
The purpose of this utility model is to provide a kind of switch on-Line Monitor Device, and it can support the monitoring of switch mechanical property, on/off switch coil current characteristic, the monitoring of energy storage motor current characteristics, insulation characterisitic monitoring even the monitoring of this interval lightning arrester simultaneously.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of switch on-Line Monitor Device comprises DSP plug-in unit, current sensor plug-in unit, displacement transducer plug-in unit, opens into plug-in unit, SMV plug-in unit, RS485 communication plug and power insert, carries out data by core bus between the variant plug-in unit and connects.
Above-mentioned DSP plug-in unit is made up of interconnective high performance fixed-point DSP and field programmable gate array.
Above-mentioned current sensor plug-in card configuration has the input terminal interface of A, B, C three-phase, is connected with the current sensor data output of isolating switch configuration.
Above-mentioned displacement transducer plug-in unit is connected with the displacement transducer data output of isolating switch configuration by the input terminal interface of A, B, C three-phase, and the result after will changing after handling by signal exports to the DSP plug-in unit.
Above-mentioned SMV plug-in unit is made up of 6 LC optical fiber interfaces and 2 ST optical fiber interfaces, wherein, primary side current when the LC interface receives the isolating switch break-make by the IEC61850-9-2 agreement, and electric life time and the statistic switch charging operation time of calculating isolating switch thus, ST optical fiber interface is supported IEC60044-8 agreement received current information, another one ST optical fiber interface be IRIG-B optical fiber to the time interface.
Above-mentioned switch on-Line Monitor Device also comprises the sensor signal input plug-in unit of a 4～20mA or 0～5V, is connected with the displacement transducer plug-in unit with the current sensor plug-in unit respectively.
After adopting such scheme, the utility model is integrated in various monitoring contents in the IED and realizes, can support the monitoring of switch mechanical property, on/off switch coil current characteristic, the monitoring of energy storage motor current characteristics, insulation characterisitic monitoring even this interval lightning arrester monitoring content simultaneously, greatly raising equipment is integrated integrated level, it is long-pending to save the screen cabinet, convenient on-the-spot the installation and operation maintenance is conducive to the integrated design of transformer station and enforcement.
Description of drawings
Fig. 1 is hardware configuration synoptic diagram of the present utility model;
Fig. 2 is the improvement project synoptic diagram of current sense box when using the utility model;
Wherein, the synoptic diagram before (a) expression improves, the synoptic diagram after (b) expression improves;
Fig. 3 is the improvement project synoptic diagram of SF6 integrated transducer when using the utility model;
Wherein, the synoptic diagram before (a) expression improves, the synoptic diagram after (b) expression improves.
Embodiment
Below with reference to accompanying drawing, the technical solution of the utility model and beneficial effect are elaborated.
As shown in Figure 1, the utility model provides a kind of switch on-Line Monitor Device, comprise DSP plug-in unit, current sensor plug-in unit, displacement transducer plug-in unit, open into plug-in unit, SMV plug-in unit, RS485 communication plug and power insert, vertically carry out data by backboard between the variant plug-in unit and connect, will introduce respectively below.
The DSP plug-in unit is made up of high performance fixed-point DSP, field programmable gate array (FPGA) and other peripheral hardware, and functions such as implement device management, communication are supported GOOSE communication communicate by letter with MMS pair net patterns and responsible man-machine interface alternation and reporting event record.Described DSP plug-in unit is dual core processor, and final output result is connected to man-machine interface plug-in unit and backstage, and last communication standard is supported the IEC61850 standard.
The displacement transducer plug-in unit is mainly gathered the displacement signal of being sent back to by displacement transducer, input terminal interface by A, B, C three-phase, be connected with the displacement transducer data output of isolating switch configuration, the result who will handle after the back access will be changed by signal exports to dsp chip.The current sensor plug-in card configuration has the input terminal interface of A, B, C three-phase, is connected with the current sensor data output of isolating switch configuration, but monitoring breaker energy storage motor electric current, disconnecting link current of electric, jumps loop current and close quantity of information such as loop current.In addition, the utility model can be matched the sensor signal input plug-in unit of a 4～20mA or 0～5V, with the access capability of expansion external sensor quantity.
Open the position state signal that mainly contains switch into the input signal of plug-in unit, and some alarm signals of switch, as hot device fault, power fail warning etc.
The SMV plug-in unit is made of 6 LC optical fiber interfaces and 2 ST optical fiber interfaces, wherein, primary side current when the LC interface can receive the isolating switch break-make by the IEC61850-9-2 agreement, and electric life time and the statistic switch charging operation time of calculating isolating switch thus, can support IEC60044-8 agreement received current information for one in 2 ST optical fiber interfaces, another one be IRIG-B optical fiber to the time interface.
Power insert has 88VDC～264VDC wide input range, is with MCU on the plug-in unit, has intelligence and leaves function, comprises warning, locking node and other 8 road and leaves node, exports big electric current 5V/6A, and maximum current can reach 8～10A.Power supply master topology is anti-sharp, and quasi-resonance, secondary synchronous rectification are adopted in former limit, and power supply gamut efficient is greater than 80%, and top efficiency can reach 84%.
Each plug-in unit in the RS485 communication plug can provide the input of 6 road RS485 interfaces, can expand to 2 communication plugs and namely support the input of 12 road RS485 interfaces at most, can receive the sensor output of carrying out communication with RS485, and carry out the processing of information by the DSP plug-in unit, and MMS station level network or on-line monitoring host computer system will be delivered on the relevant information.
The scheme that a kind of switch on-Line Monitor Device of using the utility model to provide realizes the switch on-line monitoring system below will be provided:
(1) mechanical property monitoring:
By the installation position displacement sensor, the stroke-time response curve of record breaking-closing operating extracts mechanical kinematic parameter, in conjunction with divide-shut brake coil current waveform monitoring breaker machine performance.Here displacement transducer has adopted increment type light coding displacement sensor, and the advantage of this scrambler is to have higher measuring accuracy and differential mode output to have on-site signal antijamming capability preferably.Software is handled to go up and is adopted anti-interference algorithm, and anti-stop signal produces shake and introduces error thus.
(2) close, the monitoring of switching winding current characteristics, energy storage motor current characteristics:
By adopt punching high precision closed loop Hall current sensor to the jumping circle of isolating switch close loop current, the energy storage motor electric current is monitored.Most on-line monitoring producer for providing of split-phase type mechanism 4 of every phases totally 12 separate current sensors, caused great inconvenience for on-the-spot installation.
The concept that adopts high integration current sense box shown in Figure 2 is finished the sampling of 4 road electric currents simultaneously on a current sense box, 3 current sense boxes of 3 phase mechanisms get final product, and (a) and (b) have wherein provided the contrast before and after improving.Owing to adopt hall principle to come sensed current signal, namely can be used for measuring direct current signal for same passage, also can be used for Measuring Alternating Current Signal, on-the-spot adaptive faculty is very strong.It is exactly to adopt punching mode sample rate current under the prerequisite of not destroying original electrical structure that the current sense box also has characteristics, has improved reliability greatly.
(3) insulation characterisitic monitoring:
Switch is in the process of long-time running, when the moisture in the SF6 high-voltage switch gear gas acquires a certain degree, not only can with arcing under gas analyte reaction toxigenicity thing cause the chemical corrosion of equipment then, and can make the decline of solid insulation level cause insulation flashover, have a strong impact on electric property, the mechanical property of equipment, cause many serious adverse consequencess.Usually the way of on-line monitoring producer is to finish monitoring to SF6 temperature, pressure, density and little water by mounting temperature sensor, pressure transducer, dew point transducer, because too many all producers that had afterwards of sensor type have adopted the mode of temperature and pressure one+dew point transducers.Reality is that each air chamber of switch is often only reserved a gas supplementing opening, just needs to use 4 to connect mouth so two kinds of sensors are installed, and still has inconvenience.
Adopt the SF6 integrated transducer as Fig. 3, used an interface of body just can realize that a series of indexs such as little water, density, pressure, temperature to SF6 gas monitor.The SF6 integrated transducer adopts the output of RS-485 digital form, and anti-interference and integrated level all increases substantially, and all offers convenience for installation and maintenance, and (a) and (b) have wherein provided the contrast before and after improving.
Above embodiment only is explanation technological thought of the present utility model; can not limit protection domain of the present utility model with this; every according to the technological thought that the utility model proposes, as to do on the technical scheme basis any change all falls within the utility model protection domain.
Claims (6)
1. switch on-Line Monitor Device, it is characterized in that: comprise DSP plug-in unit, current sensor plug-in unit, displacement transducer plug-in unit, open into plug-in unit, SMV plug-in unit, RS485 communication plug and power insert, carry out data by core bus between the variant plug-in unit and connect.
2. a kind of switch on-Line Monitor Device as claimed in claim 1, it is characterized in that: described DSP plug-in unit is made up of interconnective high performance fixed-point DSP and field programmable gate array.
3. a kind of switch on-Line Monitor Device as claimed in claim 1, it is characterized in that: described current sensor plug-in card configuration has the input terminal interface of A, B, C three-phase, is connected with the current sensor data output of isolating switch configuration.
4. a kind of switch on-Line Monitor Device as claimed in claim 1, it is characterized in that: described displacement transducer plug-in unit is by the input terminal interface of A, B, C three-phase, be connected with the displacement transducer data output of isolating switch configuration, the result after will changing after handling by signal exports to the DSP plug-in unit.
5. a kind of switch on-Line Monitor Device as claimed in claim 1, it is characterized in that: described SMV plug-in unit is made up of 6 LC optical fiber interfaces and 2 ST optical fiber interfaces, wherein, primary side current when the LC interface receives the isolating switch break-make by the IEC61850-9-2 agreement, and electric life time and the statistic switch charging operation time of calculating isolating switch thus, ST optical fiber interface is supported IEC60044-8 agreement received current information, another one ST optical fiber interface be IRIG-B optical fiber to the time interface.
6. a kind of switch on-Line Monitor Device as claimed in claim 1 is characterized in that: described switch on-Line Monitor Device also comprises the sensor signal input plug-in unit of a 4～20mA or 0～5V, is connected with the displacement transducer plug-in unit with the current sensor plug-in unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704937 CN203133246U (en) | 2012-12-19 | 2012-12-19 | On-line switch monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704937 CN203133246U (en) | 2012-12-19 | 2012-12-19 | On-line switch monitoring device |
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| Publication Number | Publication Date |
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| CN203133246U true CN203133246U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220704937 Expired - Lifetime CN203133246U (en) | 2012-12-19 | 2012-12-19 | On-line switch monitoring device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675668A (en) * | 2013-12-18 | 2014-03-26 | 国家电网公司 | State monitoring system of high-voltage breaker |
| CN105403780A (en) * | 2015-10-19 | 2016-03-16 | 国家电网公司 | Portable fault oscilloscope mounted in live-line mode |
| CN105510821A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | High tension switchgear multifunctional monitoring device capable of on-line disassembly and assembly |
| CN105510820A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | Integrated monitoring device used for high tension switchgear |
| CN105914874A (en) * | 2015-11-17 | 2016-08-31 | 深圳供电局有限公司 | Secondary interface device of transformer substation |
| CN107843834A (en) * | 2017-11-06 | 2018-03-27 | 国网福建省电力有限公司 | Integrate the electric convergence control cabinet of circuit-breaker testing debugging function |
| CN110231563A (en) * | 2019-07-17 | 2019-09-13 | 西安西电开关电气有限公司 | A kind of monitoring device and its monitoring information method for down loading of high-tension switch gear |
| CN112670119A (en) * | 2020-12-09 | 2021-04-16 | 广西电网有限责任公司电力科学研究院 | Intelligent control system for pressure locking of circuit breaker body and implementation method thereof |
-
2012
- 2012-12-19 CN CN 201220704937 patent/CN203133246U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675668A (en) * | 2013-12-18 | 2014-03-26 | 国家电网公司 | State monitoring system of high-voltage breaker |
| CN105403780A (en) * | 2015-10-19 | 2016-03-16 | 国家电网公司 | Portable fault oscilloscope mounted in live-line mode |
| CN105914874A (en) * | 2015-11-17 | 2016-08-31 | 深圳供电局有限公司 | Secondary interface device of transformer substation |
| CN105510821A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | High tension switchgear multifunctional monitoring device capable of on-line disassembly and assembly |
| CN105510820A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | Integrated monitoring device used for high tension switchgear |
| CN107843834A (en) * | 2017-11-06 | 2018-03-27 | 国网福建省电力有限公司 | Integrate the electric convergence control cabinet of circuit-breaker testing debugging function |
| CN107843834B (en) * | 2017-11-06 | 2020-02-14 | 国网福建省电力有限公司 | Electric control cabinet integrating breaker test debugging function |
| CN110231563A (en) * | 2019-07-17 | 2019-09-13 | 西安西电开关电气有限公司 | A kind of monitoring device and its monitoring information method for down loading of high-tension switch gear |
| CN112670119A (en) * | 2020-12-09 | 2021-04-16 | 广西电网有限责任公司电力科学研究院 | Intelligent control system for pressure locking of circuit breaker body and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
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| CX01 | Expiry of patent term |