CN208623338U - Tunable capacitor sensor with miniature multipath switch on-off - Google Patents
Tunable capacitor sensor with miniature multipath switch on-off Download PDFInfo
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- CN208623338U CN208623338U CN201821358874.4U CN201821358874U CN208623338U CN 208623338 U CN208623338 U CN 208623338U CN 201821358874 U CN201821358874 U CN 201821358874U CN 208623338 U CN208623338 U CN 208623338U
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- partial pressure
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
Tunable capacitor sensor that the utility model discloses a kind of applied to High-voltage Switchgear Industry, with miniature multipath switch on-off, connects including the high-voltage capacitor cast in pole and the high-voltage capacitor with adjustable partial pressure capacitor.Three phase mains is connected in vacuum extinction room and the single phase input of three phase mains is grounded after high-voltage capacitor is connected with adjustable partial pressure capacitor, the output end of vacuum interrupter is grounded after high-voltage capacitor is connected with adjustable partial pressure capacitor, the adjustable partial pressure capacitor is provided with adjusting circuit, adjusting circuit includes miniature multipath toggle switch, capacitance matrix etc., and the single switch output end of miniature multipath toggle switch is connected with the single capacitor of capacitance matrix.The utility model solves in existing High-voltage Switchgear Industry that capacitance sensor cannot effectively adjust the technical deficiency of capacitance, simply and easily compensates the difference as caused by batch, load, capacitance accuracy etc., stability in use and strong applicability, practicability is good.
Description
Technical field
The utility model belongs to technical field of capacitance sensor, and in particular to a kind of applied to High-voltage Switchgear Industry, tool
There is the tunable capacitor sensor of miniature multipath switch on-off.
Background technique
Pressing field (3kV~110kV) common vacuum switchgear in electric system now, (including indoor complete switch is set
Standby and outdoor pole top switch etc.) core cell be vacuum circuit breaker.The core component of vacuum circuit breaker is pole, it is adopted
It is with epoxy resin that vacuum interrupter, upper and lower wire outlet seat etc. is integrated poured in one with APG technology.Switchgear generallys use
Voltage transformer or voltage sensor measure electric system primary voltage value, if conventional scheme is handle using voltage sensor
One high-voltage capacitance is cast in pole, then is connected by a voltage-dividing capacitor with high-voltage capacitance, and voltage is passed through
Principle directly measures voltage value using DTU/FTU/ relay protection/voltmeter etc. on voltage-dividing capacitor, is converted into primary voltage
Value.
Since capacitance becomes after the precision of various factors such as temperature, capacitor itself, the distribution capacity of connecting cable, casting
Change, connection load capacity size, production batch difference etc. influence, and the voltage value surveyed on voltage-dividing capacitor is often counted with theory
There are deviation, this deviation influences each other and is difficult prediction calculation value.The method for now in industry solving the problems, such as this is high pressure
Capacitor and switch pour be poured in after, measure practical capacitance.Required voltage-dividing capacitor value is calculated according to practical capacitance, then in batches
Secondary production voltage-dividing capacitor.Even same class product is needed due to the difference of high-voltage capacitance there are many different derided capacitors
Device matches.Not only the production cycle is long in this way, and complex procedures, is unable to satisfy batch production.In addition in live operational process, such as
The damage of fruit voltage-dividing capacitor, then require to look up original record to determine voltage-dividing capacitor value, the suitable derided capacitors of new production of laying equal stress on
Device is to reprocess, and the time greatly increases after sale, this is unable to satisfy current electric system for power supply reliability requirement.Therefore at present
Definite value voltage-dividing capacitor compensation principle be unable to satisfy actual requirement, need it is a kind of it is simple and reliable, capacitance can be adjusted in real time
Voltage-dividing capacitor solve this problem.
Utility model content
The purpose of the utility model is to provide a kind of tunable capacitor sensors with miniature multipath switch on-off, it is intended to solve
Certainly capacitance sensor cannot effectively adjust the technical deficiency of capacitance in the prior art.
The technical solution for realizing the utility model aim is a kind of tunable capacitor sensing with miniature multipath switch on-off
Device is connected including the high-voltage capacitor cast in pole and the high-voltage capacitor with adjustable partial pressure capacitor,
Vacuum interrupter, upper and lower wire outlet seat are provided in the pole, one end of the high-voltage capacitor is connected with HV Terminal
It connects the other end to connect with adjustable partial pressure capacitor, three phase mains is connected in vacuum extinction room and the single phase input of three phase mains
It is grounded after high-voltage capacitor is connected with voltage-dividing capacitor, the output end of vacuum interrupter is by high-voltage capacitor and partial pressure electricity
It is grounded after container series connection, the adjustable partial pressure capacitor is provided with adjusting circuit, and the adjusting circuit includes that miniature multipath is stirred
Switch, capacitance matrix, the single switch output end of the miniature multipath toggle switch are connected with the single capacitor of capacitance matrix, institute
An input terminal for stating miniature multipath toggle switch is connected with high-voltage capacitor, another input terminal is connected in measuring instrumentss,
One output end of the capacitance matrix is grounded and another output is connected in measuring instrumentss.
One small-sized multichannel toggle switch, controls a capacitance matrix, is needed by the capacitor of switching different number
Capacitance；
Warning light circuit is also parallel on the series circuit of high-voltage capacitor and voltage-dividing capacitor.
The warning light circuit includes concatenated LED warning indication lamp and alternating-current bidirectional protection diode.
The pole is epoxy resin body.
The utility model has the effect of positive: it is reliable that the utility model has the advantages of simple structure, uses miniature multipath switching
Switch obtains corresponding required capacitance with a capacitance matrix is unified, by the capacitor of switching different number, to cooperate high-voltage capacitance
Realize the demand for taking voltage signal, the technical deficiency of capacitance cannot effectively be adjusted by solving High-voltage Switchgear Industry capacitance sensor,
High-voltage electricity can be made to produce in batches with adjustable partial pressure capacitor simultaneously, substantially increase the efficiency of processing, reduce processing
Difficulty, stability in use and strong applicability, practicability are good.
Detailed description of the invention
In order to be more likely to be clearly understood the content of the utility model, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model, in which:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the capacitance sensor schematic diagram of the utility model high-voltage switch；
Fig. 3 is the schematic diagram that adjustable partial pressure capacitor adjusts circuit in the utility model.
Specific embodiment
(embodiment 1)
Fig. 1 to Fig. 3 shows a kind of specific embodiment of the utility model, and wherein Fig. 1 is the structure of the utility model
Schematic diagram；Fig. 2 is the capacitance sensor schematic diagram of the utility model high-voltage switch；Fig. 3 is adjustable partial pressure in the utility model
The schematic diagram of capacitor adjusting circuit.
See Fig. 1 to Fig. 3, a kind of tunable capacitor sensor with miniature multipath switch on-off, including pole, casts
Two high-voltage capacitors 2 in pole, are provided with vacuum interrupter 8, upper and lower wire outlet seat 9 in the pole,
One end of high-voltage capacitor other end that is connected with HV Terminal is connected with adjustable partial pressure capacitor 3, three phase mains connection
In vacuum extinction room and the single phase input of three phase mains is connected with adjustable partial pressure capacitor 3 by high-voltage capacitor and is followed by
The output end on ground, vacuum interrupter 8 is grounded after high-voltage capacitor is connected with voltage-dividing capacitor 3, the adjustable partial pressure capacitor
Device 3 is provided with adjusting circuit, and the adjusting circuit includes small-sized multichannel toggle switch 4, capacitance matrix 5, and the small-sized multichannel is dialled
The single switch output end of dynamic switch is connected with the single capacitor of capacitance matrix, an input of the small-sized multichannel toggle switch
End is connected with high-voltage capacitor 2, another input terminal is connected in measuring instrumentss, the output end ground connection of the capacitance matrix
And another output is connected in measuring instrumentss.
One small-sized multichannel toggle switch 4, controls a capacitance matrix 5, is needed by the capacitor of switching different number
The capacitance wanted；
Warning light circuit is also parallel on the series circuit of high-voltage capacitor and voltage-dividing capacitor.
The warning light circuit includes concatenated LED warning indication lamp 7 and alternating-current bidirectional protection diode 6.
In Fig. 1, the core cell pole of electric system vacuum circuit breaker, it uses APG technology, uses epoxy resin
Equal materials the whole sealing such as vacuum interrupter, upper and lower wire outlet seat, high-voltage capacitance together.High-voltage capacitor is cast in sealing
In pole, one end is connected with high-pressure section, one end and voltage-dividing capacitor series connection.
It is high-voltage switch gear capacitance sensor schematic diagram in Fig. 2, A, B, C are Three-phase Power Systems phase sequence, and vacuum interrupter is main
Wanting function is point, closes electric current, high-voltage capacitor 2, voltage-dividing capacitor 3.2 and 3 be series relationship, because under same frequency, capacitor holds
It is anti-to be inversely proportional with capacitance, and voltage is directly proportional to capacitive reactance, therefore voltage is inversely proportional with capacitance, and 3 capacitances is made to be greater than 2 (differences
1000 times or more), guarantee most voltages point in this way in high-voltage capacitance 2, small voltage point is on voltage-dividing capacitor 3
Directly pass through the 3 both end voltage values of device measurings such as DTU/FTU/ relay protection/voltmeter.6 be bidirectional protective diode, is prevented
High voltage seals in low tension loop, shields.7 be alarm lamp, lights sending alarm signal after protection diode breakdown
Number.
As shown in figure 3,3 functions in Fig. 2 are realized by the entire circuit in Fig. 3.Its core is using a small-sized multichannel
Toggle switch 4 controls a capacitance matrix 5, the capacitance needed by the capacitor of switching different number.Each capacitor's capacity
Depending on required total capacitance value, the present embodiment has selected 5nF, 1nF, 0.2nF, 0.1nF respectively, and such total capacitance value is adjustable
Range are as follows: 5~20nF, minimum adjusted value are 0.1nF.In practical application, such as apply in 1 high pressure entry/exit terminal of pole high
Piezoelectricity can measure branch pressure voltage value in voltage-dividing capacitor 3, if its value is less than normal, then be cut off using small-sized multichannel toggle switch 4
The dry capacitor of promise increases its branch pressure voltage；If voltage is bigger than normal, then the dry capacitor of promise is put into, reduces its partial pressure；Pin1 and Pin2
For input terminal, 2 high-voltage capacitance of map interlinking, 2 lower end, one connects measuring instrumentss, and Pin3 and Pin4 are output end, and one is grounded, and one
It is a to connect measuring instrumentss.
In practical utility model, due to miniature requirement, using small-sized toggle switch and ceramic paster capacitor, entire electricity
Road is made into one piece of PCB circuit board.Overvoltage damages product and the person in order to prevent simultaneously, needs an alternating-current bidirectional in parallel
Protection diode 6, a LED alarm lamp 7 of connecting after diode.It is then inserted into and out of line interface using standard aviation.PCB electricity
After the completion of the welding of road plate, overall package is into special metal shell, and there are the openings of toggle switch for shell, facilitates direct switching
Toggle switch.
As described above, a kind of tunable capacitor sensor, capacitance required for adjustment that can be simple and reliable compensate high-voltage switch gear
Pole capacitance sensor scheme is due to capacitance after the precision of temperature, capacitor itself, the distribution capacity of connecting cable, casting
The influence of the various factors such as variation, connection payload size, production batch difference, this is the key that product can be using institute in engineering
And the utility model value where.
It is reliable that the utility model has the advantages of simple structure, uses miniature multipath fling-cut switch with a capacitance matrix is unified, passes through
The capacitor of switching different number obtains corresponding required capacitance, to cooperate high-voltage capacitance realization to take the demand of voltage signal, solves
Capacitance sensor cannot effectively adjust the technical deficiency of capacitance in High-voltage Switchgear Industry, while can make high-voltage switch gear sealing pole
Column produces in batches with adjustable partial pressure capacitor, substantially increases the efficiency of processing, reduces the difficulty of processing, stability in use
And strong applicability, practicability are good.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.And the obvious changes or variations that these connotations for belonging to the utility model are extended out still fall within it is practical
Novel protection scope.
Claims (5)
1. a kind of tunable capacitor sensor with miniature multipath switch on-off, including casting in the high-voltage capacitance in pole
Device, the high-voltage capacitor are connected with adjustable partial pressure capacitor, and vacuum interrupter is provided in the pole, is gone out up and down
Line seat, one end of high-voltage capacitor other end that is connected with HV Terminal are connected with adjustable partial pressure capacitor, and feature exists
In: three phase mains is connected in vacuum extinction room and the single phase input of three phase mains is by high-voltage capacitor and voltage-dividing capacitor
Be grounded after series connection, the output end of vacuum interrupter is grounded after high-voltage capacitor is connected with adjustable partial pressure capacitor, it is described can
Voltage-dividing capacitor is adjusted to be provided with adjusting circuit, the adjusting circuit includes small-sized multichannel toggle switch, capacitance matrix, described small-sized
The single switch output end of multichannel toggle switch is connected with the single capacitor of capacitance matrix, and the one of the small-sized multichannel toggle switch
A input terminal is connected with high-voltage capacitor with voltage-dividing capacitor, another input terminal is connected in measuring instrumentss, the capacitor square
One output end of battle array is grounded and another output is connected in measuring instrumentss.
2. the tunable capacitor sensor according to claim 1 with miniature multipath switch on-off, it is characterised in that: one
Miniature multipath toggle switch controls a capacitance matrix, the capacitance needed by the capacitor of switching different number.
3. the tunable capacitor sensor according to claim 1 with miniature multipath switch on-off, it is characterised in that: in height
Warning light circuit is also parallel on the series circuit of piezoelectric capsule and voltage-dividing capacitor.
4. the tunable capacitor sensor according to claim 3 with miniature multipath switch on-off, it is characterised in that: described
Warning light circuit includes concatenated LED warning indication lamp and alternating-current bidirectional protection diode.
5. the tunable capacitor sensor according to claim 1 with miniature multipath switch on-off, it is characterised in that: described
Pole is epoxy resin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821358874.4U CN208623338U (en) | 2018-08-22 | 2018-08-22 | Tunable capacitor sensor with miniature multipath switch on-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821358874.4U CN208623338U (en) | 2018-08-22 | 2018-08-22 | Tunable capacitor sensor with miniature multipath switch on-off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208623338U true CN208623338U (en) | 2019-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821358874.4U Active CN208623338U (en) | 2018-08-22 | 2018-08-22 | Tunable capacitor sensor with miniature multipath switch on-off |
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| Country | Link |
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| CN (1) | CN208623338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038610A (en) * | 2018-08-22 | 2018-12-18 | 爱启（厦门）电气技术有限公司 | Tunable capacitor sensor with miniature multipath switch on-off |
| WO2021035626A1 (en) * | 2019-08-29 | 2021-03-04 | Micron Technology, Inc. | Configurable memory die capacitance |
-
2018
- 2018-08-22 CN CN201821358874.4U patent/CN208623338U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038610A (en) * | 2018-08-22 | 2018-12-18 | 爱启（厦门）电气技术有限公司 | Tunable capacitor sensor with miniature multipath switch on-off |
| WO2021035626A1 (en) * | 2019-08-29 | 2021-03-04 | Micron Technology, Inc. | Configurable memory die capacitance |
| US11947813B2 (en) | 2019-08-29 | 2024-04-02 | Micron Technology, Inc. | Configurable memory die capacitance |
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