CN206411171U - Switch built-in voltage sensor and its integrated - Google Patents
Switch built-in voltage sensor and its integrated Download PDFInfo
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- CN206411171U CN206411171U CN201621387409.4U CN201621387409U CN206411171U CN 206411171 U CN206411171 U CN 206411171U CN 201621387409 U CN201621387409 U CN 201621387409U CN 206411171 U CN206411171 U CN 206411171U
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- switch built
- voltage sensor
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Abstract
The utility model provides a kind of switch built-in voltage sensor and its integrated.The switch built-in voltage sensor includes HV Terminal and shell, and the HV Terminal is arranged at outside the shell；Two resitstance voltage dividers are provided with the shell, the high-pressure side of two resitstance voltage dividers is connected with the HV Terminal, the low-pressure end of two resitstance voltage dividers is connected by two output leads with resistance respectively, and the insulating part for separating two resitstance voltage dividers is filled with the shell.The switch built-in voltage sensor integration includes mounting seat and three switch built-in voltage sensors for being fixedly installed on the mounting seat.Switch built-in voltage sensor of the present utility model and its integrated small volume, light weight run safety and stability, and precision is high, can be built among switch.
Description
Technical field
The utility model is related to electric quantity acquisition and relay protection in power system, and particularly a kind of switch built-in voltage is passed
Sensor and its integrated.
Background technology
Information-based, the interactive feature of intelligent grid has driven power equipment to multi-parameter intelligent, Informatization Development.Will
Advanced sensing measurement technology, the communication technology, information technology be used for primary equipment intellectuality, and by primary equipment with it is secondary
Equipment is organically combined, and lifting power equipment and the performance of device and intellectuality, the level of IT application turn into following intelligent grid equipment
Development trend.
Information is the base support of intelligent grid, and the acquisition of information needs substantial amounts of smart machine to support.In intelligent electricity
In net, integrated technology application will be increasingly extensive, and the fuzzy of professional boundary will cause the extension of smart machine in intelligent grid significantly
Widen.It is envisaged that various smart machines will be presented in intelligent grid, function is increasingly integrated, form is mutually blended, work
Journey implements flexible configurations development trend.Therefore, it is necessary to encourage and preferentially using suitable for not in power grid construction from now on and transformation
The advanced technology and smart machine come needed for intelligent grid is built.
High-tension apparatus is the elementary cell of power network, and high-tension apparatus intellectuality (abbreviation smart machine) is the important of intelligent grid
Part, is also one of outstanding feature of the traditional power network of difference.
IBM：The operation conditions of key equipment is monitored in real time using sensor, the data of acquisition are then passed through net
Network system is collected, integrated, and finally by the analysis to data, excavates, reaches the optimization pipe to whole Operation of Electric Systems
Reason.
Accenture：Using sensor, embeded processor, digital communication and IT technologies, power network Observable (can be supervised
Survey the state of all elements of power network), controllable (state that all elements of power network can be controlled) and automation (can adaptively and in fact
Existing self-healing), so as to make more cleaning, efficient, safe and reliable power system.
Smart machine is the high-tension apparatus that addition of intelligent assembly, and intelligent assembly performs member by state aware and instruction
Part, realizes visualization, the networking and automation of control of state, and most basic function support is provided for intelligent grid.
Intelligent assembly is the set of some intelligent electronic devices, is installed on by host equipment, undertakes related to host equipment
Measurement, control and monitoring etc. function.When meeting relevant criterion requirement, intelligent assembly can also integrated related relay protection function.
Whether importance, fault impact and its occurrence probability of the primary equipment in power network, failure can monitor, monitor into
This and reliability, more economical alternative solution (such as live detection) is whether there is, be all to determine whether primary equipment needs intelligence
Change and how intelligentized foundation.
Transformer, reactor, breaker, GIS, power cable, bushing etc., these equipment, or fault rate is relatively
Height, or fault impact are larger, the demand with Autonomous test.On the other hand, for these equipment, available self-inspection survey technology has
Certain Research foundation and application experience, possess the primary condition for carrying out intelligent Application.
Intelligent high-voltage equipment is made up of high-tension apparatus and intelligent assembly.Pass through state sense between high-tension apparatus and intelligent assembly
Know element (sensor or one part) and instruction execution element control unit or one part) one organic whole of composition.
Intelligent grid is to the intelligentized demand of primary equipment：
1st, primary equipment is the elementary cell of power network, and intelligent primary equipment is the important component of intelligent grid, mainly
It is related to transformer and switchgear.Running status, state of a control, load capacity of primary equipment etc. are carried out using sensor real
When monitor so that realize grid equipment Observable, controllable and automation be smart machine core and target.
2nd, primary equipment is intelligent, embeds the functions such as measurement, metering, relay protection, monitoring, control.
3rd, site operation simply, conveniently, is saved and taken up an area.
The 4th, necessary monitoring information is externally provided, facilitates operation maintenance.
5th, new construction scheme.
At present, still design is not developed for state's net Single cell fusion, secondary fusion and matching net wire loss metering requirements
A phase sequence, residual voltage collection sensor.
Utility model content
For problem of the prior art, the purpose of this utility model is to provide a kind of switch built-in voltage sensor and its collection
Into small volume, light weight runs safety and stability, precision is high, and can be placed within switch.
The utility model solves the technical scheme that its technical problem used：One kind switch built-in voltage sensor, its
Including HV Terminal and shell, the HV Terminal is arranged at outside the shell；Two electric resistance partial pressures are provided with the shell
Device, the high-pressure side of two resitstance voltage dividers is connected with the HV Terminal, the low pressure of two resitstance voltage dividers
End is connected by two output leads with resistance respectively, and two resitstance voltage dividers of separation are filled with the shell
Insulating part.
Switch built-in voltage sensor as described above, wherein, two resitstance voltage dividers are vertically arranged, and the electricity
The high-pressure side of divider is hindered positioned at the top of the low-pressure end of the resitstance voltage divider.
Switch built-in voltage sensor as described above, wherein, pass through between the high-pressure side of two resitstance voltage dividers
Electric wire is connected with each other, the HV Terminal and the wire welding, and the HV Terminal is fixedly installed on the upper of the shell
Portion.
Switch built-in voltage sensor as described above, wherein, the output lead is double shield twisted wire.
Switch built-in voltage sensor as described above, wherein, the resistance string is associated with electric capacity.
Switch built-in voltage sensor as described above, wherein, the insulating part is made up of epoxy resin.
Switch built-in voltage sensor as described above, wherein, the shell is cylindric, and the side wall of the shell sets
It is equipped with multiple annular projections along radial direction.
Switch built-in voltage sensor as described above, wherein, multiple annular projections are equidistantly arranged.
The utility model additionally provides a kind of switch built-in voltage sensor integration, and it includes mounting seat and three as above
Three and the switch built-in voltage sensor are provided with the top of described switch built-in voltage sensor, the mounting seat
The groove that matches of bottom, the switch built-in voltage sensor is arranged in the groove correspondingly.
Switch built-in voltage sensor integration as described above, wherein, three grooves are equidistantly along straight line
It is arranged between the top of the mounting seat, two adjacent grooves and is provided with mounting hole.
The beneficial effects of the utility model are：
Switch built-in voltage sensor bulk of the present utility model is small, and light weight runs safety and stability, and precision is high.
It is of the present utility model switch built-in voltage sensor integration, by three it is described switch built-in voltage sensor combinations and
Into electronic type zero sequential potential transformer, small volume, light weight runs safety and stability, and precision is high, it is most important that, due to volume
It is smaller, it can be built among switch, reduce the ineffective interference that extraneous factor is caused, run more secure, reliable.
Brief description of the drawings
Fig. 1 is the structural representation of switch built-in voltage sensor of the present utility model.
Fig. 2 is the structural representation of switch built-in voltage sensor integration of the present utility model.
Fig. 3 is Fig. 2 partial cutaway view schematic.
Fig. 4 is the signal output schematic diagram of switch built-in voltage sensor integration of the present utility model.
Description of reference numerals：
1st, HV Terminal, 2, insulating part, 3, resitstance voltage divider, 4, shell, 5, output lead, 6, mounting seat, 61, install
Hole.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As shown in figure 1, the utility model provides a kind of switch built-in voltage sensor, it includes HV Terminal 1 and outer
Shell 4, the HV Terminal 1 is arranged at outside the shell 4；Two resitstance voltage dividers 3 are provided with the shell 4, described in two
The high-pressure side of resitstance voltage divider 3 is connected with the HV Terminal 1, and the low-pressure end of two resitstance voltage dividers 3 leads to respectively
Cross two output leads 5 to be connected with resistance, the insulation for separating two resitstance voltage dividers 3 is filled with the shell 4
Part 2.
In a specific embodiment, two resitstance voltage dividers 3 are vertically arranged, and the resitstance voltage divider 3
High-pressure side be located at the resitstance voltage divider 3 low-pressure end top；Preferably, the high-pressure side of two resitstance voltage dividers 3
Between be connected with each other by electric wire, the HV Terminal 1 and the wire welding, and the HV Terminal 1 is fixedly installed on institute
State the top of shell 4.The output lead 5 is double shield twisted wire.The resistance string is associated with electric capacity.The insulating part 2 is by ring
Oxygen tree fat is made.The shell 4 is cylindric, and the side wall of the shell 4 is provided with multiple annular projections along radial direction；
Preferably, multiple annular projections are equidistantly arranged.
As shown in Figure 2 to Figure 3, a kind of switch built-in voltage sensor integration, it includes the as above institute of mounting seat 6 and three
The switch built-in voltage sensor stated, the top of the mounting seat 6 is provided with three and the switch built-in voltage sensor
The groove that matches of bottom, the switch built-in voltage sensor is arranged in the groove correspondingly.
State's net is directed to the demarcation switch applied in 10kV feeder line overhead transmission lines recently, it is proposed that to have line loss metering, zero
Sequence voltage detects function, and line loss metering needs to gather the voltage and current amount of primary equipment, and residual voltage collection is to handle
During electric power system fault, the phase shift angle of residual voltage is recognized by detecting, any phase ground short circuit failure of A, B, C is judged.
Traditional electromagnetic voltage transformer can have residual voltage output function, and bulky, quality weight is not suitable for being arranged on 10kV
On the bar of overhead transmission line, run and safeguard and be very inconvenient.It is arranged on moreover, traditional electromagnetism zero sequential potential transformer is exposure
On the bar of overhead transmission line, often influenceed by adverse circumstances, weather, the operation troubles increase of itself；Additionally, due to tradition
The design and insulating requirements of electromagnetism zero sequential potential transformer, product design are bulky, and quality weight, main screw lift is up to 175kg,
Often there is the phenomenon that product comes off from bar；Construction and installation and operation maintenance are totally unfavorable.In switch of the present utility model
Put voltage sensor integrated using the design optimized, electronic zero is formed by three switch built-in voltage sensor combinations
Sequence voltage transformer, small volume, light weight runs safety and stability, and precision is high, it is most important that, it is described to open due to small volume
Integrated can realize of voltage sensor is put inside the Pass to be built among switch, the ineffective interference that extraneous factor is caused is reduced, and is run
It is more safe and reliable.
The utility model is built in ZW20/28 type outdoor AC high-voltage demarcation vacuum circuit breakers as a kind of intelligent assembly
Among, ZW20/28 is a user demarcation switch, is mainly connected by ZW20-12 type vacuum circuit breakers gas, with fault detect work(
Can, protection control function and communication function reliably judge, with out-of-bounds milliampere level zero-sequence current body, fault detect control in detection circle
Device processed and external voltage transformer three parts composition.Three switch built-in voltage sensors pass through the mounting seat 6
(such as aviation socket) and outdoor sealing control cable carry out electricity and phase fault electric current, realize automatic excision single-phase earthing
Failure and phase fault, are mainly used in cut-offfing, closing the load current, overload current and short circuit current flow of power system.It is suitable
Protect and control for transformer station, industrial and mining enterprises and city, rural power grids, be particularly suitable for use in place and the urban power network automation of frequent operation
Distribution network.
Particularly, three grooves are equidistantly arranged at the top of the mounting seat 6, two along straight line
Mounting hole 61 is provided between the adjacent groove.
As shown in figure 4, high pressure A, B, C three-phase pass through two highvoltage resistance potential dividers and public domain, the two high pressures respectively
Resitstance voltage divider is measurement phase sequence voltage signal all the way, and another road synthesizes measurement residual voltage with other two-way；Residual voltage
Synthesis mode is the output signal that three voltage divider output parallel connections are constituted to residual voltage sensor, and phase sequence lead-out terminal is determined
Justice respectively Ua+, Ua-, Ub+, Ub-, Uc+, Uc- are used as phase sequence low pressure output signal；Zero sequence lead-out terminal be defined as U0+,
U0-, is used as zero sequence low pressure output signal.In order to improve the relatively insulaion resistance of resitstance voltage divider, in collection phase sequence and zero sequence
Worn on the high-tension resistive of voltage and meet an electric capacity C.
Below by taking the embodiment shown in Fig. 1 to Fig. 3 as an example, illustrate switch built-in voltage sensing of the present utility model
The operation logic of device and its integrated each part：
When HV Terminal 1, the switch built-in voltage sensor or switch built-in voltage sensor integration operation,
The upper end of this terminal will be connected with one of the three-phase of 10kV high-tension lines, and lower end will connect with the high-pressure side of resitstance voltage divider 3
Connect；
Insulating part 2, is made up of epoxy resin, and epoxy resin main function one is, as insulating materials, to be filled in resistance point
Between depressor 3 and shell 4, for isolated high voltage, two be to play a part of fixed resistance divider 3；
Resitstance voltage divider 3, is the electronic component of most critical, and the stability of this component directly influences product
Can, the intermediate output of resitstance voltage divider 3 is held as (+) of signal output, and the tail end of resitstance voltage divider 3 is used as signal output
Public domain end (-)；Especially for the switch built-in voltage sensor integration, two resitstance voltage dividers 3 are set inside each phase,
It does not interfere with each other.In order to improve the relatively insulaion resistance of resitstance voltage divider 3, on the high-tension resistive of collection phase sequence and residual voltage
Wear and meet an electric capacity C；
Shell 4, is that the pre- ABS that first passes through processes a housing, resitstance voltage divider 3 is positioned over behind centre, epoxy is refilled
Resin material is fixed, and shell 4 is external insulation, mechanical resistant impact and abrasion；
Output lead 5 is the output lead 5 of resitstance voltage divider 3, and it uses high temperature resistant double shield twisted wire；
For the switch built-in voltage sensor integration, in addition to mounting base 6, three switch built-in voltages are passed
Sensor is fixedly installed on the mounting base 6, forms the switch built-in voltage sensor integration.
During making, the resitstance voltage divider 3, the HV Terminal 1 and the output lead 5 can be welded can rearward,
Wear on the high-tension resistive of collection phase sequence voltage and residual voltage again and meet an electric capacity C, be then fixedly mounted on the shell 4 it
In, pour into a mould using epoxide resin vacuum and (form insulating part 2), after solidification, form the switch built-in voltage sensor.Through
Cross and examine after qualified, tone pitch, every three switch built-in voltage sensors are fixedly mounted on a mounting base 6, with regard to shape
Into the switch built-in voltage sensor integration.
From the foregoing, switch built-in voltage sensor integration of the present utility model has the advantages that：
1st, small volume, light weight, the switch built-in voltage sensor integration can only have 6.6kg；
2nd, structure design flexibly, profile diversification；
3rd, with high accuracy and high stability；
4th, safe and reliable, open circuit, short circuit problem is not present in secondary circuit
5th, precision is high, and 0.2 grade can be issued in full working scope；
The 6th, facility is installed；
7th, fill up electronic mutual inductor and do not gather phase sequence, the blank of zero sequential potential transformer.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. one kind switch built-in voltage sensor, it is characterised in that the switch built-in voltage sensor includes HV Terminal (1)
With shell (4), the HV Terminal (1) is arranged at the shell (4) outside；Two electric resistance partial pressures are provided with the shell (4)
Device (3), the high-pressure side of two resitstance voltage dividers (3) is connected with the HV Terminal (1), two electric resistance partial pressures
The low-pressure end of device (3) is connected by two output leads (5) with resistance respectively, and separation two has been filled with the shell (4)
The insulating part (2) of the individual resitstance voltage divider (3).
2. switch built-in voltage sensor according to claim 1, it is characterised in that two resitstance voltage dividers (3)
Be vertically arranged, and the resitstance voltage divider (3) high-pressure side be located at the resitstance voltage divider (3) low-pressure end top.
3. switch built-in voltage sensor according to claim 2, it is characterised in that two resitstance voltage dividers (3)
High-pressure side between be connected with each other by electric wire, the HV Terminal (1) and the wire welding, and the HV Terminal (1)
It is fixedly installed on the top of the shell (4).
4. switch built-in voltage sensor according to claim 3, it is characterised in that the output lead (5) is double screen
Cover twisted wire.
5. switch built-in voltage sensor according to claim 4, it is characterised in that the resistance string is associated with electric capacity.
6. switch built-in voltage sensor according to claim 5, it is characterised in that the insulating part (2) is by epoxy
What resin was made.
7. switch built-in voltage sensor according to claim 6, it is characterised in that the shell (4) is cylindric, and
The side wall of the shell (4) is provided with multiple annular projections along radial direction.
8. switch built-in voltage sensor according to claim 7, it is characterised in that multiple annular projections are equidistant
Arrangement.
9. one kind switch built-in voltage sensor integration, it is characterised in that the switch built-in voltage sensor integration includes peace
Fill base (6) and three switch built-in voltage sensors as any one of claim 1-8, the mounting seat (6)
Top be provided with the grooves that match of bottom of three and the switch built-in voltage sensor, the switch built-in voltage is passed
Sensor is arranged in the groove correspondingly.
10. switch built-in voltage sensor integration according to claim 9, it is characterised in that between three described grooves etc.
Away from the top that the mounting seat (6) are arranged at along straight line, mounting hole is provided between two adjacent grooves
(61)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387409.4U CN206411171U (en) | 2016-12-16 | 2016-12-16 | Switch built-in voltage sensor and its integrated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387409.4U CN206411171U (en) | 2016-12-16 | 2016-12-16 | Switch built-in voltage sensor and its integrated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206411171U true CN206411171U (en) | 2017-08-15 |
Family
ID=59550163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621387409.4U Active CN206411171U (en) | 2016-12-16 | 2016-12-16 | Switch built-in voltage sensor and its integrated |
Country Status (1)
| Country | Link |
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| CN (1) | CN206411171U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802478A (en) * | 2018-08-16 | 2018-11-13 | 江苏靖江互感器股份有限公司 | A kind of capacitive external electric pressure sensor of killer switch |
| CN109239439A (en) * | 2018-10-16 | 2019-01-18 | 国网江苏省电力有限公司南京供电分公司 | A kind of embedded-type electric pressure sensor |
| CN109283381A (en) * | 2018-09-29 | 2019-01-29 | 广东米勒电气有限公司 | A kind of electronic voltage transducer and application method |
-
2016
- 2016-12-16 CN CN201621387409.4U patent/CN206411171U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802478A (en) * | 2018-08-16 | 2018-11-13 | 江苏靖江互感器股份有限公司 | A kind of capacitive external electric pressure sensor of killer switch |
| CN108802478B (en) * | 2018-08-16 | 2023-12-22 | 江苏靖江互感器股份有限公司 | Capacitive external voltage sensor for breaker switch |
| CN109283381A (en) * | 2018-09-29 | 2019-01-29 | 广东米勒电气有限公司 | A kind of electronic voltage transducer and application method |
| CN109239439A (en) * | 2018-10-16 | 2019-01-18 | 国网江苏省电力有限公司南京供电分公司 | A kind of embedded-type electric pressure sensor |
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