CN2385337Y - Plug-in unit type high voltage electroscope display device - Google Patents
Plug-in unit type high voltage electroscope display device Download PDFInfo
- Publication number
- CN2385337Y CN2385337Y CN 99216832 CN99216832U CN2385337Y CN 2385337 Y CN2385337 Y CN 2385337Y CN 99216832 CN99216832 CN 99216832 CN 99216832 U CN99216832 U CN 99216832U CN 2385337 Y CN2385337 Y CN 2385337Y
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- China
- Prior art keywords
- plug
- utility
- model
- housing
- electrical verification
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a plug-in unit type high voltage electroscope display device which comprises a casing on which a plug-in unit hole is arranged. An electroscope display plug-in unit provided with a light emitting diode is matched with the plug-in unit hole. The back surface of the casing is provided with a back plate provided with a terminal rank. The back plate is connected with the casing with a fixing screw. An electroscope display circuit is arranged in the casing. The utility model is fixedly arranged on a disc surface of a switch cabinet and can effectively solve the problem that electricity is tested before a 'five protection' totally enclosed switch cabinet contacts the ground and is connected with a knife switch. The utility model adopts the light emitting diode for the display. The utility model has the advantages of long service life, high safety and reliability. The utility model can not be influenced by ambient light. The utility model can be used for testing electricity and displaying electricity.
Description
The utility model relates to a kind of being applicable to and exchanges 50 hertz, and the electric system of rated voltage 3-35 kilovolt shows in order to check whether power equipment has the safety feature of working voltage.
Along with electric system constantly develops, for electric equipment operation, maintenance and the personnel of assurance security needs, adopted " five is anti-" totally-enclosed switch cubicle in a large number, and requirement necessary first electrical verification before splice grafting ground disconnecting link, and existing at present " five is anti-" switch cubicle, great majority have been installed the charged display device of standing formula neon lamp on card, because the blind rate height of neon lamp, confidence level is poor, be difficult to foundation as electrical verification, so also necessarily require electrical verification again, but because in " five anti-" interlocked operation, must close the ground wire disconnecting link earlier after, just can open the door, and do not knowing under the whether charged situation, again can not first easily splice grafting ground disconnecting link, contradiction has taken place with the operation that connects disconnecting link in the electrical verification of therefore opening the door with closing, in order to guarantee safety, can only be with unlocking mode by force, open the cabinet door with special-purpose electroscope electrical verification after, splice grafting ground disconnecting link again, so, make to have lost " five is anti-" meaning by " five is anti-" switch cubicle, it is very loaded down with trivial details to operate simultaneously.
The purpose of the utility model development, in order to solve a kind of plug-in type high voltage testing display device that is fixedly mounted on the switch cubicle card whether direct detecting box inner high voltage electrical equipment has working voltage, this device is installed simple, easy to operate, safe and reliable exactly.
For achieving the above object, the utility model is taked following design proposal: this plug-in type high voltage testing display device, it comprises housing, insert hole is arranged on the housing, the electrical verification for light emitting diode is housed that cooperates with insert hole shows plug-in unit, the back side of housing is the backboard that connecting terminal block is housed, and backboard is connected with housing with set bolt, and the electrical verification display circuit is housed in the housing.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 a: be front view of the present utility model
Fig. 1 b: be the vertical view of Fig. 1 a
Fig. 2: for electrical verification shows plug-in unit
Fig. 3: be electrical verification display circuit schematic diagram
As shown in Figure 1 and Figure 2, the utility model 1 is a housing, spliced eye 2 is arranged on the housing, the electrical verification that has long-term durability luminous diode 7 shows that plug-in unit 6 cooperates with spliced eye 2, back side of shell has a backboard that has a connecting terminal block 4, be connected with set bolt 3 between housing and the backboard 5, the utility model is fixed on the card of switch cubicle by means of set bolt 3, backboard 5, and the electrical verification display circuit is housed in the housing.
Circuit theory as shown in Figure 3, the extension line of the sensor of the three-phase column support type insulator style of the CG series in the switch cubicle is received respectively on A, B, the C terminal of the connecting terminal block 4 on the backboard 5, terminal " O " links to each other with the switch cubicle grounding body, and the alternating voltage of every phase sensor output is U
N, the output two ends also meet voltage dependent resistor (VDR) V
R, through capacitor C
1Coupling meets D
1, D
2, D
3, D
4The bridge rectifier loop of forming, rectification output connects by capacitor C
2, stabilivolt DW
1, trigger thyristor SCR, resistance R
1The accumulation of energy loop of forming, this loop output connects by resistance R
2, resistance R
3And the electrical verification that has LED shows the loop that plug-in unit is formed, resistance R
2, resistance R
3Exceed and banish resistance.
The circuit working principle is: with the feeble signal of CG series sensor, through D
1-D
4Behind the bridge rectifier, to C
2The charging accumulation of energy is when voltage reaches DW
1During magnitude of voltage that stabilivolt is set, DW1 punctures conducting and triggers the SCR thyristor, makes C
2The LED light emitting diode that inserts the plug in the jack is discharged rapidly, and light emitting diode flashes, and works as C
2When both end voltage is reduced to " O ", DW
1End with SCR, LED stops luminous, and the feeble signal of sensor output is at this moment still passed through D
1-D
4To continue to C
2The charging accumulation of energy ... thereby form the circulation trigger process, make the continuously rhythmical flicker of LED luminous, have working voltage, play electrical verification demonstration effect with the prompting high voltage electric equipment.
The utility model has the advantages that:
1, this device has fixed electroscope function owing to can be fixedly mounted on the card of switch cubicle, Can effectively solve front " electrical verification " problem of " five is anti-" totally-enclosed switch cubicle splice grafting ground disconnecting link, grafting The flash of light demonstration has more standard galvanoscopic " self check " function, thereby can give full play to " five is anti-" full envelope Close " five is anti-" function of switch cubicle.
2, the flash of light part of this device adopts, and high brightness LED not only can not be subjected to ambient light Impact, all can be high-visible under high light and the daily light condition, this kind light emitting diode belongs to no filament simultaneously Element, it has again long, safe and reliable characteristics of life-span, if for a long time plug-in unit is inserted in the jack same The function that also has charged demonstration.
3, this device is except component life is long, and flash circuit is the independent combiners of three-phase three covers, may break down simultaneously hardly, " mistake " indication therefore can not occur, thereby guarantee reliability of operation.
4, this device can use for a long time continuously because installation is simple, easy to operate, safe and reliable, existing electroscope function, and having again has electric Presentation Function, is a kind of very desirable safety feature that is widely used in various switch cubicles.
Claims (2)
1, a kind of plug-in type high voltage testing display device, it is characterized in that: it comprises housing (1), insert hole (2) is arranged on the housing, the electrical verification for light emitting diode (7) is housed that cooperates with insert hole shows plug-in unit (6), the back side of housing is the backboard (5) that connecting terminal block is housed, backboard (5) is connected with housing (1) with set bolt (3), and the electrical verification display circuit is housed in the housing.
2, plug-in type high voltage testing display device according to claim 1, it is characterized in that: described electrical verification display circuit is formed A, B, C three-phase electrical verification display circuit by three identical cover circuit of circuit theory, the display circuit of every phase comprises: with the voltage dependent resistor (VDR) UR of every output terminal of sensor mutually parallel connection, it is exported through capacitor C
1Coupling connects by D
1, D
2, D
3, D
4The bridge rectifier loop that constitutes, rectification output connects by capacitor C
2, stabilivolt DW
1, trigger thyristor SCR, resistance R
1The charging accumulation of energy loop of forming, this loop output connects by resistance R
2, resistance R
3And the electrical verification that has light emitting diode shows the loop that plug-in unit is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99216832 CN2385337Y (en) | 1999-07-13 | 1999-07-13 | Plug-in unit type high voltage electroscope display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99216832 CN2385337Y (en) | 1999-07-13 | 1999-07-13 | Plug-in unit type high voltage electroscope display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2385337Y true CN2385337Y (en) | 2000-06-28 |
Family
ID=34008396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99216832 Expired - Fee Related CN2385337Y (en) | 1999-07-13 | 1999-07-13 | Plug-in unit type high voltage electroscope display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2385337Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331521A (en) * | 2011-06-15 | 2012-01-25 | 宁波电业局 | 10kV handcart switch simple electricity testing device |
| CN102361244A (en) * | 2011-06-15 | 2012-02-22 | 宁波电业局 | Simple electricity testing device of 35-kV handcart switch |
| CN110887990A (en) * | 2019-12-09 | 2020-03-17 | 郑州固峰电力器材有限公司 | Electric power high-voltage ring main unit electricity testing device and method |
-
1999
- 1999-07-13 CN CN 99216832 patent/CN2385337Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331521A (en) * | 2011-06-15 | 2012-01-25 | 宁波电业局 | 10kV handcart switch simple electricity testing device |
| CN102361244A (en) * | 2011-06-15 | 2012-02-22 | 宁波电业局 | Simple electricity testing device of 35-kV handcart switch |
| CN102361244B (en) * | 2011-06-15 | 2013-06-12 | 宁波电业局 | Simple electricity testing device of 35-kV handcart switch |
| CN102331521B (en) * | 2011-06-15 | 2013-07-24 | 宁波电业局 | 10kV handcart switch simple electricity testing device |
| CN110887990A (en) * | 2019-12-09 | 2020-03-17 | 郑州固峰电力器材有限公司 | Electric power high-voltage ring main unit electricity testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |