CN203275504U - High-voltage electrification display - Google Patents
High-voltage electrification display Download PDFInfo
- Publication number
- CN203275504U CN203275504U CN 201320313964 CN201320313964U CN203275504U CN 203275504 U CN203275504 U CN 203275504U CN 201320313964 CN201320313964 CN 201320313964 CN 201320313964 U CN201320313964 U CN 201320313964U CN 203275504 U CN203275504 U CN 203275504U
- Authority
- CN
- China
- Prior art keywords
- sensing unit
- circuit
- voltage
- voltage electrification
- display
- Prior art date
- 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 - Lifetime
Links
Images
Abstract
The utility model provides a high-voltage electrification display, which comprises a sensing unit and electrical inspection display units. The sensing unit which adopts non-contact type capacitive sensors is connected with three-phase high-voltage lines of a high-voltage electrification switch cabinet. Each electrical inspection display unit comprises a rectification filter circuit, a detection control circuit and an electrical inspection circuit which are sequentially connected. The input ends of the rectification filter circuits are connected with the sensing unit. The electrical inspection circuits are formed by serially connecting light emitting diodes and divider resistors. By adopting light emitting diodes replacing neon lamps and using the luminescence characteristics and the unidirectional conduction characteristics of the light emitting diodes, the high-voltage electrification display achieves long-service-lifetime high-brightness flash displaying and is suitably used in running environments with divergent light conditions. The high-voltage electrification display is also direct-viewing and eye-catching. By adopting the detection control circuits composed of bidirectional silicon controlled rectifiers and controllable diodes, the high-voltage electrification display protects devices from being damaged and further prevents signal distortion by adopting overvoltage suppressing measures. Furthermore, the high-voltage electrification display adopts a phase-splitting control way and alarms in a flashing way when any phase is electrified.
Description
Technical field
The utility model belongs to a kind of electrical detection facility, is specifically related to a kind of HV live displaying electroscopic device.
Background technology
Use with the high voltage display device of neon lamp as display element in a large number on the electrification in high voltage switch cubicle at present, through operation use for a long time, find that blindness is high, a large amount of damage appears in neon bulb.
In order to supply a gap, installed neon lamp operation/closing switch on charged display device, this switch is in closed condition at ordinary times, thereby makes whole high voltage display device temporarily out of service.This processing mode has lost high voltage display device as the whether charged effect of pilot wire trackside.Neon lamp brightness is low, and particularly brightness is washed away in bright environment, and demonstration property is relatively poor.
Old-fashioned high voltage display device with mandatory electric blocking, locking principle is too simple, and after the signal of just A, B, C three-phase sensor being exported carries out half-wave rectification respectively, direct combination together, removes to control locked loop.When this mode the abnormal conditions of single-phase earthing or phase shortage occur in system, because of the drift of lock-in control voltage can cause device reliably locking the accident of charged splice grafting ground switch occurs.
The neon lamp formula high voltage display device of installing at present mostly adopts plastic casing and is installed in the high-tension apparatus interval, in case arc is put in the inside switch cabinet short circuit in operating process, high-temperature electric arc may with the plastic casing fusing of device, injure operation or maintainer.
The utility model content
The technical problems to be solved in the utility model is: a kind of HV live displaying electroscopic device is provided, can be suitable for the running environment under various light.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: the HV live displaying electroscopic device is characterized in that: it comprises sensing unit and electrical verification display unit; Wherein sensing unit adopts non-contact capacitance formula sensor, is connected with the three-phase high-voltage line of electrification in high voltage switch cubicle; The electrical verification display unit comprises current rectifying and wave filtering circuit, detection control circuit and the electrical circuit inspection that connects in turn, and the input end of current rectifying and wave filtering circuit is connected with sensing unit; Described electrical circuit inspection is in series by light emitting diode and divider resistance.
Press such scheme, described detection control circuit comprises bidirectional triode thyristor and controllable diode, the negative electrode of controllable diode is connected with the same end of bidirectional triode thyristor with control end, and the other end of bidirectional triode thyristor is connected anode and is connected with electrical circuit inspection respectively with controllable diode.
Press such scheme, be in series with on-off circuit between described sensing unit and current rectifying and wave filtering circuit.
Press such scheme, described electrical verification display unit is 3, is connected with sensing unit respectively.
The beneficial effects of the utility model are:
1, the characteristics of luminescence and the one-way conduction characteristic by utilizing light emitting diode adopts light emitting diode to replace neon lamp, and its long-life, super bright flash of light showed, was suitable for the running environment under various light, and is intuitively eye-catching.
2, adopt bidirectional triode thyristor and controllable diode as detecting control circuit, the measure of taking to suppress overvoltage comes the not damaged and distorted signals of ensuring equipment.
3, adopt a minute phase control, any one when mutually charged, i.e. flashing light alarm.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model one embodiment.
Embodiment
Fig. 1 is the circuit theory diagrams of the utility model one embodiment, and it comprises sensing unit and electrical verification display unit, and in the present embodiment, the electrical verification display unit is 3, is connected with sensing unit respectively; Wherein sensing unit adopts non-contact capacitance formula sensor, is connected with the three-phase high-voltage line of electrification in high voltage switch cubicle; The electrical verification display unit comprises current rectifying and wave filtering circuit, detection control circuit and the electrical circuit inspection that connects in turn, and the input end of current rectifying and wave filtering circuit is connected with sensing unit; Described electrical circuit inspection is in series by light emitting diode and divider resistance.Described detection control circuit comprises bidirectional triode thyristor and controllable diode, and the negative electrode of controllable diode is connected with the same end of bidirectional triode thyristor with control end, and the other end of bidirectional triode thyristor is connected anode and is connected with electrical circuit inspection respectively with controllable diode.
Optionally, also can be in series with on-off circuit between described sensing unit and current rectifying and wave filtering circuit.
The utility model utilizes the field coupled principle between high-voltage electric field and sensor, whether charged apart from outer checkout equipment and circuit at charging equipment and line security, and output block signal, be applicable to exchange on the indoor high-voltage electrical equipment equipment and circuit of 50Hz rated voltage 6kV～35kV, detect electriferous state, prevent electric misoperation.
By the stray capacitance between induction electrode and electrification in high voltage, the alternating voltage signal on the coupled high voltage alive body.By cable, this signal is sent in this device and processes, finally realize HV live displaying and lock-in control.
Sensor designs by full working condition requirement, and creepage distance satisfies the technical standard requirement.Sensor is epoxide resin material support insulator product, can be used as disconnector, grounding switch and other support insulators and uses, and has the characteristics such as intensity is high, anti-electric arc ability is strong, partial discharge quantity is little.
This device adopts a minute phase control, and any one when mutually charged, i.e. flashing light alarm, and output forced blocking signal.When display power supply out of hand, display is exported the forced blocking signal equally, keeps blocking.
Claims (4)
1. HV live displaying electroscopic device, it is characterized in that: it comprises sensing unit and electrical verification display unit; Wherein sensing unit adopts non-contact capacitance formula sensor, is connected with the three-phase high-voltage line of electrification in high voltage switch cubicle; The electrical verification display unit comprises current rectifying and wave filtering circuit, detection control circuit and the electrical circuit inspection that connects in turn, and the input end of current rectifying and wave filtering circuit is connected with sensing unit; Described electrical circuit inspection is in series by light emitting diode and divider resistance.
2. HV live displaying electroscopic device according to claim 1, it is characterized in that: described detection control circuit comprises bidirectional triode thyristor and controllable diode, the negative electrode of controllable diode is connected with the same end of bidirectional triode thyristor with control end, and the other end of bidirectional triode thyristor is connected anode and is connected with electrical circuit inspection respectively with controllable diode.
3. HV live displaying electroscopic device according to claim 1 and 2, is characterized in that: be in series with on-off circuit between described sensing unit and current rectifying and wave filtering circuit.
4. HV live displaying electroscopic device according to claim 1 and 2, it is characterized in that: described electrical verification display unit is 3, is connected with sensing unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320313964 CN203275504U (en) | 2013-06-03 | 2013-06-03 | High-voltage electrification display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320313964 CN203275504U (en) | 2013-06-03 | 2013-06-03 | High-voltage electrification display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275504U true CN203275504U (en) | 2013-11-06 |
Family
ID=49505881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320313964 Expired - Lifetime CN203275504U (en) | 2013-06-03 | 2013-06-03 | High-voltage electrification display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771509A (en) * | 2017-03-22 | 2017-05-31 | 国网安徽省电力公司金寨县供电公司 | A kind of three-phase synchronous electroscopic device for 10kV power distribution cabinets |
-
2013
- 2013-06-03 CN CN 201320313964 patent/CN203275504U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771509A (en) * | 2017-03-22 | 2017-05-31 | 国网安徽省电力公司金寨县供电公司 | A kind of three-phase synchronous electroscopic device for 10kV power distribution cabinets |
| CN106771509B (en) * | 2017-03-22 | 2023-04-18 | 国网安徽省电力公司金寨县供电公司 | Three-phase synchronous electricity testing device for 10kV power distribution cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204347118U (en) | Electrification in high voltage numerical monitor and blocking device | |
| CN106711937B (en) | A kind of alternating-current charging pile A type leakage protection circuit | |
| CN205539155U (en) | Case modified line cable magnetic field manifold type electrified indicating ware | |
| CN203275504U (en) | High-voltage electrification display | |
| CN102338838A (en) | Creepage detection circuit | |
| CN203838232U (en) | High-voltage electroscope circuit capable of self-checking | |
| CN102608399A (en) | High-voltage electrified display locking device | |
| CN206180985U (en) | Can change circuit breaker of intelligent control ware with electricity | |
| CN102354869A (en) | Electricity leakage protection plug with alarm device | |
| CN208621682U (en) | A kind of mains failure detection circuit | |
| CN104362520A (en) | Intelligent high voltage verification display and block system of substation | |
| CN203275565U (en) | Multifunctional grounding detector | |
| CN104201486B (en) | A kind of Portable short-circuit grounding device | |
| CN110786079B (en) | Lamp tube, protection circuit and protection device applied to lamp tube | |
| CN106132050A (en) | Intelligent road-lamp with residual current protecting controls chopper | |
| CN208156120U (en) | A kind of high-tension apparatus electric leakage alarm device | |
| CN203350347U (en) | Three-phase electrification indicator of switch cabinet | |
| CN207166138U (en) | A kind of subway station distribution system | |
| CN108957108A (en) | A kind of mains failure detection circuit | |
| CN209896680U (en) | Circuit for realizing self-checking of leakage protector | |
| CN201490684U (en) | Leakage detection protective circuit | |
| CN104143811A (en) | Direct-current electric leakage protection circuit | |
| CN203490278U (en) | Photoconductive high-voltage live-line indicating system | |
| CN204287301U (en) | Attached type high-voltage charge display device | |
| CN202856168U (en) | Locking device of heavy-current ring main unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUHAN TAIKE ELECTRIC CO., LTD. Free format text: FORMER NAME: WUHAN TAIKE ELECTRIC LTD. |
|
| CP03 | Change of name, title or address |
Address after: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 519 Ming Ze Liwan 1 unit C block 14 layer Patentee after: WUHAN TAIKE ELECTRIC CO.,LTD. Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 519 Ming Ze Liwan 1 block C floor 14 Patentee before: WUHAN TAIKE ELECTRIC Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |