CN103513089A - Electrified display sensor - Google Patents
Electrified display sensor Download PDFInfo
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- CN103513089A CN103513089A CN201310310037.XA CN201310310037A CN103513089A CN 103513089 A CN103513089 A CN 103513089A CN 201310310037 A CN201310310037 A CN 201310310037A CN 103513089 A CN103513089 A CN 103513089A
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Abstract
The invention discloses an electrified display sensor. The electrified display sensor comprises an insulator, an upper flange, a lower flange, a first capacitor, a second capacitor, a first terminal and a second terminal, wherein a plurality of sheds which have alternated different sizes and are formed by epoxy resin in a cast mode are arranged on the outer side of the insulator, the first capacitor and the second capacitor are embedded in the middle of the insulator, and the first terminal and the second terminal are embedded in the lower side of the insulator; a lower pole plate of the first capacitor is connected with the first terminal, and a lower pole plate of the second capacitor is connected with the second terminal; an upper pole plate of the first capacitor and an upper pole plate of the second capacitor are connected and then connected to the upper flange. The electrified display sensor has the advantages that under the circumstance that the appearance and an installation mode of a conventional electrified display sensor are not changed, two electrified display devices can effectively monitor the electrified state of the same point by embedding the two capacitors in the insulator, and the electrified display sensor connected with the two display devices works stably and is simple in circuit connection, safe and efficient.
Description
Technical field
The present invention relates to a kind of sensor, relate in particular to a kind of sensor of charged demonstration.
Technical background
Along with domestic electric power industry development, the transformation of the continuous increase of power station and generating set and the urban and rural power grids of each department, use a large amount of switch cubicles to require more and more stricter to " five is anti-" of present use switch cubicle, high voltage display device is as one of " five is anti-", the life security that is related to operating personnel and maintainer, directly has influence on the security of electricity consumption.
The structure of existing charged demonstration sensor is for burying an electric capacity 12 underground at insulator 2 middle parts, a utmost point of electric capacity is connected in the terminals 13 that embed insulator; Another utmost point is connected to the upper flange of sensor upper end 11, thereby connect high voltage bus by upper flange, is connected to high voltage bus, and concrete structure schematic diagram as shown in Figure 1.High-voltage charge display device is a kind of being directly installed on indoor high-voltage electrical complete equipment, intuitively demonstrates electrical equipment whether with the indicative safety feature of working voltage.When equipment is during with working voltage, this display display window flashes, and warning people high-tension apparatus is charged, during without electricity without indicating.This equipment series need support the use with charged display device sensor, utilize the electric capacity in sensor internal core rod type electric capacity and electrification display, connect into series connection minute hydraulic circuit, therefrom extract the voltage signal from high tension loop, as electrification display source driving signal.As shown in Figure 2, sensor upper flange is received high voltage bus to principle, and electric capacity is connected to high voltage bus by upper flange, and the electric capacity other end is connected to electrification display by terminals, forms a charged display device.
Current high-voltage charge display device is integrated in Intelligent operation control device of switch cabinet and Intelligent switch cabinet display device by wide model, and such device is widely used in high-tension switch cabinet.And present most of high-tension switch cabinet is to overhaul after cabinet, need to install electrification display at back door, the electrification in high voltage situation after monitor rack in cable vault, does not open back door under warning people electriferous state, in case mistakenly entering into charged compartment is every, the initiation personnel casualty accident of getting an electric shock.This type of switch cubicle major part is equiped with Intelligent operation control device of switch cabinet or Intelligent switch cabinet display device, due to such device integrated the functions such as the operation of switch cubicle, on off state demonstration, Temperature and Humidity Control, charged demonstration, voice reminder, determined that this device must be loaded on the front instrument door of cabinet, after cabinet, just must separately install 1 electrification display so, occur that 2 charged display devices monitor same point charged states.Nowadays general solution just has two kinds: a kind of for increasing by 1 sensor at this point, this kind of scheme exists following defect: 1. the sensor increasing ties up installing space, has increased installation workload and difficulty; 2. the sensor increasing need connect copper bar one time, has increased the own cost of copper bar and sensor.Another kind is 2 charged display devices of 1 sensor strip, be illustrated in fig. 3 shown below, the capacitor C 1 that is embedded in sensor is connected in high voltage bus by upper flange, capacitor C 1 other end connects two electrification displays by terminals and is respectively electrification display 1 and electrification display 2, thereby forms two charged display devices:
There is following defect in this kind of scheme: because electrification display is to adopt principle of capacitive divider to provide power supply for charged pilot lamp, A point in upper figure is C2+C3 to the capacitance of the earth, magnitude of voltage and its capacitance due to capacitance partial pressure is inversely proportional to again, therefore the magnitude of voltage that A point connects separately 1 electrification display to the magnitude of voltage ratio sensor of the earth is little, this just need to adjust to suitable numerical value the internal resistance of electrification display, and charged pilot lamp could be bright.Because electrification display is standard product, the internal resistance of numerous ，Ge producer of manufacturer electrification display is different.Thereby this kind of scheme electrification display often occurs show abnormality, easily cause mistakenly entering charged chamber accident.
Summary of the invention
For the deficiencies in the prior art, the technical problem to be solved in the present invention is: a kind of high safety be provided, be easy to processing, cost is low, the outer installing space of occupying volume, Presentation Function stable, can solve the charged demonstration sensor that two charged display devices monitor same electriferous state.
For solving above-mentioned prior art problem, the technical solution used in the present invention is: a kind of charged demonstration sensor, comprise: outside is provided with insulator, upper flange, the lower flange of the cluster parachute of several big or small alternate poured with epoxy resin, also comprise: the first electric capacity, the second electric capacity, the first terminals, the second terminals, described the first electric capacity and the second electric capacity are embedded in insulator middle part, and described the first terminals and the second terminals embed insulator downside; Described the first electric capacity bottom crown is connected with the first terminals, and the second electric capacity bottom crown is connected with the second terminals; After being connected, the top crown of the top crown of described the first electric capacity and described the second electric capacity is connected to upper flange.
As preferred version, described the first electric capacity and described the second electric capacity are core rod type electric capacity.
As preferred version, described the first electric capacity and described the second electric capacity are for being embedded in side by side insulator middle part.
Preferably, described insulator bottom arranges connecting groove, and described the first terminals and described the second terminals embed in connecting groove.
The technique effect that the present invention obtains is: in the situation that not changing original tradition charged demonstration sensor profile and mounting means, can bury two electric capacity underground by insulator inside, effectively solved two charged display devices and monitored same point electriferous state, the working sensor of this connection two place's display device is stablized, circuit connects simple, safe and effective.
Accompanying drawing explanation
Fig. 1 is traditional charged demonstration sensor
Fig. 2 is that traditional charged demonstration sensor connects a display device schematic diagram
Fig. 3 is that traditional charged demonstration sensor connects two display device schematic diagram
Fig. 4 is the charged demonstration sensor construction of the present invention schematic diagram
Fig. 5 is that the charged demonstration sensor of the present invention connects two display device schematic diagram
Fig. 6 is the charged demonstration sensor side of the present invention view
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The charged demonstration sensor construction of the present invention figure as shown in Figure 4, charged demonstration sensor body 1 comprises insulator 2, the contour structures of insulator 2 is identical with conventional insulators, it is all the insulator that outside is provided with the cluster parachute of several big or small alternate poured with epoxy resin, insulator upper end arranges upper flange 5, lower end arranges lower flange 8, insulator bosom position buries first underground, the second core rod type electric capacity 3, 4, insulator 2 bottoms embed first, the second terminals 7, 6, the bottom crown of the first core rod type electric capacity 3 connects the first terminals 7, the second core rod type electric capacity 4 bottom crowns are connected to the second terminals 6, after being connected, the top crown of the top crown of the first core rod type electric capacity and the second core rod type electric capacity is connected to upper flange 5, in use, upper flange 5 is connected with high voltage bus, lower flange 8 fixing with assembled electric equipment housing on, first, the second terminals 7, 6 are wired to respectively charged display device, thereby form the stable charged display device of two covers.
Below in conjunction with accompanying drawing 5, introduce the concrete application connection layout of the charged demonstration sensor of the present invention, be specially and in column support type insulator, bury 2 core rod type electric capacity underground, one end of its core rod type electric capacity is connected with high voltage bus through upper flange, and the other end is connected with 2 secondary connection ends of sensor lower end respectively.Sensor connects two electrification displays simultaneously, the same with tradition charged demonstration sensor profile and mounting means, by upper flange, be connected with high voltage bus, by lower flange fix with assembled electric equipment housing on, secondary connection end is connected with charged display device by wire.Effectively solve 2 charged display devices and monitored the situation that same point electriferous state occurs.
Fig. 6 is the charged demonstration sensor terminals of the present invention view, and in figure, insulator 2 bottoms arrange connecting groove 9, the first terminals 7 and the second terminals 6 and arrange respectively and embed in connecting groove.
Above specific embodiment has only been described principal character and the innovative point of this programme.Those skilled in the art should understand, and this programme is not restricted to the described embodiments.Do not departing under the prerequisite of the innovation point and protection domain, this programme also has various variations, and these changes and improvements all will fall in the claimed scope of this programme.The claimed scope of this programme is limited by appending claims and equivalent thereof.
It should be noted that above-described embodiment is in order to illustrate rather than limit the present invention, those skilled in the art can design many optional embodiment under the condition of scope that does not deviate from claims.Word " comprises " and does not get rid of those elements different from the element of listing in claim or step or the existence of step.Word before element " one " or " one " do not get rid of the existence of a plurality of this elements, in enumerating several circuit claims, several can performance by one in these devices, hardware branch is also same, only, because some method is to describe, do not illustrate that the combination of these methods can not be used for making a profit in different dependent claims.
It should be noted that, in this article, such as the relational terms of the first and second grades, be only used for an entity or operation and another entity or operational zone to separate, and not necessarily require or imply these entities or operation between exist any this reality relation or order, and, term " comprises ", " comprise " or any other variant is intended to contain comprising of nonexcludability, thereby make the process that comprises a series of key elements, method, article or equipment not only comprise those key elements, but also comprise other key elements that those are clearly listed, or be also included as this process, method, the key element that article or equipment are intrinsic, term " is connected ", " connection ", " be connected to " or other variants, not only comprise two entities are directly connected, also comprise by thering are useful other entities that improve effect and being indirectly connected.
Claims (4)
1. a charged demonstration sensor, comprise: outside is provided with insulator, upper flange, the lower flange of the cluster parachute of several big or small alternate poured with epoxy resin, it is characterized in that: comprising: the first electric capacity, the second electric capacity, the first terminals, the second terminals, described the first electric capacity and the second electric capacity are embedded in insulator middle part, and described the first terminals and the second terminals embed insulator downside; Described the first electric capacity bottom crown is connected with the first terminals, and the second electric capacity bottom crown is connected with the second terminals; After being connected, the top crown of the top crown of described the first electric capacity and described the second electric capacity is connected to upper flange.
2. charged demonstration sensor according to claim 1, is characterized in that: described the first electric capacity and described the second electric capacity are core rod type electric capacity.
3. charged demonstration sensor according to claim 1, is characterized in that: described the first electric capacity and described the second electric capacity are for being embedded in side by side insulator middle part.
4. charged demonstration sensor according to claim 1, is characterized in that: described insulator bottom arranges connecting groove, and described the first terminals and described the second terminals embed in connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310310037.XA CN103513089B (en) | 2013-07-22 | 2013-07-22 | A kind of charged display sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310310037.XA CN103513089B (en) | 2013-07-22 | 2013-07-22 | A kind of charged display sensor |
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| CN103513089A true CN103513089A (en) | 2014-01-15 |
| CN103513089B CN103513089B (en) | 2016-09-14 |
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| CN201310310037.XA Active CN103513089B (en) | 2013-07-22 | 2013-07-22 | A kind of charged display sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901258A (en) * | 2014-04-09 | 2014-07-02 | 福建鑫恒源智能电气有限公司 | Supporting insulator type high voltage induction sensor |
| CN104197972A (en) * | 2014-09-06 | 2014-12-10 | 洛阳通颖电气有限公司 | Novel sensor |
| CN105319432A (en) * | 2015-11-19 | 2016-02-10 | 正泰电气股份有限公司 | An embedded type probe for a charged display device |
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| FR2689248A1 (en) * | 1992-03-24 | 1993-10-01 | Alsthom Gec | Voltage presence indicator for medium voltage line - has dividing bridge with two capacitors and connected to neon lamp while resistor and amplifier supply indicating lamp and relay |
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2013
- 2013-07-22 CN CN201310310037.XA patent/CN103513089B/en active Active
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| DE4133936A1 (en) * | 1991-10-14 | 1993-04-15 | Sachsenwerk Ag | Indicator unit for displaying voltage condition of HV network - has dual signal input from independent capacitor couplings and logic evaluation of signals for self monitoring visual indication of state |
| FR2689248A1 (en) * | 1992-03-24 | 1993-10-01 | Alsthom Gec | Voltage presence indicator for medium voltage line - has dividing bridge with two capacitors and connected to neon lamp while resistor and amplifier supply indicating lamp and relay |
| CN2350773Y (en) * | 1998-09-21 | 1999-11-24 | 崔汉东 | Safety test pencil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901258A (en) * | 2014-04-09 | 2014-07-02 | 福建鑫恒源智能电气有限公司 | Supporting insulator type high voltage induction sensor |
| CN104197972A (en) * | 2014-09-06 | 2014-12-10 | 洛阳通颖电气有限公司 | Novel sensor |
| CN105319432A (en) * | 2015-11-19 | 2016-02-10 | 正泰电气股份有限公司 | An embedded type probe for a charged display device |
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| Publication number | Publication date |
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| CN103513089B (en) | 2016-09-14 |
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