CN201780325U - High-voltage charged display - Google Patents
High-voltage charged display Download PDFInfo
- Publication number
- CN201780325U CN201780325U CN2010202569495U CN201020256949U CN201780325U CN 201780325 U CN201780325 U CN 201780325U CN 2010202569495 U CN2010202569495 U CN 2010202569495U CN 201020256949 U CN201020256949 U CN 201020256949U CN 201780325 U CN201780325 U CN 201780325U
- Authority
- CN
- China
- Prior art keywords
- phase
- resistance
- capacitor
- circuit
- rectification
- 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 - Fee Related
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a high-voltage charged display, which is applicable to high-voltage ring main unit of an electric power system, and is used for detecting and displaying whether three-phase high-voltage lines in the ring main unit are charged or not on the one hand, and providing a locking port with a coding lock for locking of a computer key on the other hand. The high-voltage charged display not only comprises A-phase, B-phase and C-phase voltage detection and display circuits but provides a computer key locking circuit which can control an electronic control lock and lead the electronic control lock to be locked forcedly on a live condition, so that a hand operating hole can be locked, operators can not operate the display any more on the live condition, and accidents can be avoided.
Description
Technical field
The utility model relates to technical field of power systems, is specifically related to detect and shows the high-voltage charge display device that three-phase high-voltage line in the electric system ring main unit is whether charged.
Background technology
At present, the high-voltage charge display device that uses on the ring main unit is divided into active and passive dual mode work, active mode is that high-voltage charge display device needs the additional power source powered operation, passive mode is that high-voltage charge display device does not need additional power source, but utilizes self input signal that working power is provided.Adopt the high-voltage charge display device of passive mode work to have to install advantages such as simple, working stability, reliability height and long service life.
The electrical verification lock of one brain locking of not powering of high-voltage charge display device of using on the existing ring main unit can not provide the high-voltage charge display device of forced blocking function, particularly passive working method all can not provide blocking function.There is not the high-voltage charge display device of blocking function the electrical verification of high-tension apparatus can not be incorporated in the five anti-anti-misoperation systems, thereby safety that can't the basic assurance electric power operation.
Summary of the invention
The purpose of this utility model provides a kind of high-voltage charge display device, be applicable to the high pressure ring cabinet of electric system, be used for detection on the one hand and show whether ring main unit three-phase high-voltage line is charged, also provide the locked end confession computer key locking that having the coding lock to use on the other hand.
For achieving the above object, the utility model provides following technical scheme: a kind of high-voltage charge display device comprises A phase, B phase and C three-phase voltage detection and display circuit mutually; It is characterized in that: also comprise the computer key exclusive circuit, it comprises A phase, B phase and C three-phase voltage detection signal input interface mutually; Rectification circuit B4 carries out rectification to synthetic three-phase voltage detection signal; Stabilivolt D8 is serially connected with the rectification cathode output end; Filtering circuit, comprise capacitor C 4, C5, resistance R 13, R14, R15 and R16, capacitor C 4 in parallel, resistance R 13 are connected with capacitor C 5, resistance R 14 in parallel, and together be connected between stabilivolt D8 output terminal and the rectification cathode output end, resistance R 15 is connected stabilivolt D8 output terminal and rectification cathode output end respectively with resistance R 16; Electrical circuit inspection, comprise triode Q1, Q2, Q3 and Q4, capacitor C 7 and C8 and electrical verification tapered end J3, Q1 and Q4, Q3 and Q2 are connected into the Darlington transistor form, Q1 base stage connecting resistance R15, Q3 base stage connecting resistance R16, the Q1 emitter-base bandgap grading connects the Q1 emitter-base bandgap grading, capacitor C 7 and C8 are series between Q1 collector and the Q3 collector, the Q2 collector connects the Q4 collector, the Q2 emitter-base bandgap grading connects the Q4 emitter-base bandgap grading and connects electrical verification joint J3 first pin, capacitor C 4, resistance R 13 are connected electrical verification joint J3 crus secunda with the series connection node of capacitor C 5, resistance R 14, and J3 offers the block signal that computer key carries out electrical verification by the electrical verification tapered end.
Described A phase, B phase and C three-phase voltage detection signal mutually give described rectification circuit B4 by synthetic three-phase voltage detection signal behind repeating resistance R10, R11 and the R12 respectively.
Each phase voltage detection and the display circuit of three-phase comprise voltage sensor, rectification circuit, storage capacitor, stabilivolt, controllable silicon and light emitting diode mutually with C mutually for described A phase, B, rectification circuit connects voltage sensor and ground wire, storage capacitor is connected between rectification circuit two output terminals, controllable silicon and light emitting diode are series between storage capacitor the two poles of the earth, and stabilivolt is connected between the silicon controlled anode and the control utmost point.
The utility model is to adopt passive mode work, and it has the electrical verification lock that power supply brain key uses, and can carry out lock operation.The utility model can be controlled an electric control lock, and hand behaviour hole is pinned in electric control lock forced blocking under the situation that electricity is arranged, and the operator can't be operated under charged situation, effectively prevents the generation of accident.
Description of drawings
Fig. 1 is the circuit theory diagrams of the high-voltage charge display device that provides of embodiment.
Embodiment
As shown in Figure 1, the high-voltage charge display device that present embodiment provides adopts the work of passive type working method, and it comprises A phase, B phase and C three-phase voltage detection and display circuit and computer key exclusive circuit mutually.
Wherein, the embodiment and the principle of A phase, B phase and C phase three-phase voltage testing circuit all are the same, and existing is that example is described with A mutually.
A phase voltage testing circuit comprises A phase voltage sensor, repeating resistance R1, rectification circuit B1, storage capacitor C1, stabilivolt D5, resistance R 4, controllable silicon T1, resistance R 5 and light emitting diode D1.Rectification circuit B1 input end connects A phase voltage sensor and ground wire by repeating resistance R1, storage capacitor C1 is connected between rectification circuit B1 two output terminals, controllable silicon T1, resistance R 5 and light emitting diode D1 are series between storage capacitor C1 the two poles of the earth, are connected to after resistance R 4 and the stabilivolt D5 series connection between the anode and the control utmost point of controllable silicon T1.In the foregoing circuit structure, resistance R 1, R4, R5 are as coupling, current limliting, pressure limiting or the resistance of expression circuit own, non-essential function element.
The principle of work of A phase voltage testing circuit is: the A phase voltage detection signal that A phase voltage sensor obtains, be input to rectification circuit B1 through repeating resistance R1 and carry out rectification, voltage after the rectification is added to the charging of storage capacitor C1 two ends, reach the voltage breakdown of stabilivolt D5 when charging voltage after, stabilivolt D5 conducting, in the control extremely of controllable silicon T1 voltage is arranged, then controllable silicon T1 conducting, voltage on the storage capacitor C1 is added on the light emitting diode D1 by controllable silicon T1 and resistance R 5 at this moment, light emitting diode D1 is luminous, and the indication circuit is charged; When storage capacitor C1 discharge dropped to certain voltage, controllable silicon T1 turn-offed, and storage capacitor C1 begins next charging process again.Indicate high-tension apparatus charged with this.
Continuation is referring to Fig. 1, and the computer key exclusive circuit comprises A phase, B phase and C three-phase voltage detection signal input interface, repeating resistance R10, R11, R12, R13, R14, R15 and R16, rectification circuit D4, stabilivolt D8, capacitor C 4, C5, C7 and C8, triode Q1, Q2, Q3 and Q4 and electrical verification tapered end J3 mutually in the present embodiment.A phase, B phase and C three-phase voltage detection signal mutually input to rectification circuit B4 after synthesizing by repeating resistance R10, R11 and R12 respectively; Rectification circuit B4 carries out rectification to synthetic three-phase voltage detection signal; Stabilivolt D8 is serially connected with the rectification cathode output end; Capacitor C 4, C5, resistance R 13, R14, R15 and R16 constitute filtering circuit, capacitor C 4 in parallel, resistance R 13 are connected with capacitor C 5, resistance R 14 in parallel, and together be connected between stabilivolt D8 output terminal and the rectification cathode output end, resistance R 15 is connected stabilivolt D8 output terminal and rectification cathode output end respectively with resistance R 16; Triode Q1, Q2, Q3 and Q4, capacitor C 7 and C8 and electrical verification joint J3 constitute electrical circuit inspection, Q1 and Q4, Q3 and Q2 are connected into the Darlington transistor form, Q1 base stage connecting resistance R15, Q3 base stage connecting resistance R16, the Q1 emitter-base bandgap grading connects the Q1 emitter-base bandgap grading, capacitor C 7 and C8 are series between Q1 collector and the Q3 collector, the Q2 collector connects the Q4 collector, the Q2 emitter-base bandgap grading connects the Q4 emitter-base bandgap grading and connects electrical verification joint J3 first pin, capacitor C 4, resistance R 13 are connected electrical verification joint J3 crus secunda with the series connection node of capacitor C 5, resistance R 14, and J3 offers the block signal that computer key carries out electrical verification by the electrical verification tapered end.
When high-tension apparatus is charged, the input signal of three voltage sensors is coupled to after the rectification circuit B4 rectification through resistance, C4 and C5 filtering are given in step-down through stabilivolt D8, filtered DC voltage is added to Q1 and Q3 two ends, Q1 and Q3 conducting, Q4 and Q2 also can conductings under the effect of emitter external signal.When computer key inserts J3, the conducting of Q4 and Q2, J3 offers the block signal that computer key carries out electrical verification through the electrical verification tapered end; Behind the detection loss of voltage of input, Q1, Q3, Q4 and Q2 all end, and C7 and C8 are filter capacitor.
Certainly, the utility model high-voltage charge display device also can have other distortion.In a word, do conspicuous change according to the prompting of the foregoing description, and other every changes that do not break away from the utility model essence, the scope that the utility model discloses all should be belonged to.
Claims (3)
1. a high-voltage charge display device comprises A phase, B phase and C three-phase voltage detection and display circuit mutually; It is characterized in that: also comprise the computer key exclusive circuit, it comprises A phase, B phase and C three-phase voltage detection signal input interface mutually; Rectification circuit B4 carries out rectification to synthetic three-phase voltage detection signal; Stabilivolt D8 is serially connected with the rectification cathode output end; Filtering circuit, comprise capacitor C 4, C5, resistance R 13, R14, R15 and R16, capacitor C 4 in parallel, resistance R 13 are connected with capacitor C 5, resistance R 14 in parallel, and together be connected between stabilivolt D8 output terminal and the rectification cathode output end, resistance R 15 is connected stabilivolt D8 output terminal and rectification cathode output end respectively with resistance R 16; Electrical circuit inspection, comprise triode Q1, Q2, Q3 and Q4, capacitor C 7 and C8 and electrical verification tapered end J3, Q1 and Q4, Q3 and Q2 are connected into the Darlington transistor form, Q1 base stage connecting resistance R15, Q3 base stage connecting resistance R16, the Q1 emitter-base bandgap grading connects the Q1 emitter-base bandgap grading, capacitor C 7 and C8 are series between Q1 collector and the Q3 collector, the Q2 collector connects the Q4 collector, the Q2 emitter-base bandgap grading connects the Q4 emitter-base bandgap grading and connects electrical verification joint J3 first pin, capacitor C 4, resistance R 13 are connected electrical verification joint J3 crus secunda with the series connection node of capacitor C 5, resistance R 14, and J3 offers the block signal that computer key carries out electrical verification by the electrical verification tapered end.
2. high-voltage charge display device according to claim 1 is characterized in that: described A phase, B phase and C three-phase voltage detection signal mutually give described rectification circuit B4 by synthetic three-phase voltage detection signal behind repeating resistance R10, R11 and the R12 respectively.
3. high-voltage charge display device according to claim 1, it is characterized in that: each phase voltage detection and the display circuit of three-phase comprise voltage sensor, rectification circuit, storage capacitor, stabilivolt, controllable silicon and light emitting diode mutually with C mutually for described A phase, B, rectification circuit connects voltage sensor and ground wire, storage capacitor is connected between rectification circuit two output terminals, controllable silicon and light emitting diode are series between storage capacitor the two poles of the earth, and stabilivolt is connected between the silicon controlled anode and the control utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202569495U CN201780325U (en) | 2010-07-13 | 2010-07-13 | High-voltage charged display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202569495U CN201780325U (en) | 2010-07-13 | 2010-07-13 | High-voltage charged display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780325U true CN201780325U (en) | 2011-03-30 |
Family
ID=43793536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202569495U Expired - Fee Related CN201780325U (en) | 2010-07-13 | 2010-07-13 | High-voltage charged display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201780325U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761101A (en) * | 2011-04-28 | 2012-10-31 | 吉林省电力有限公司四平供电公司 | High-voltage electrified display system with anti-fault interface |
| CN102879628A (en) * | 2011-07-12 | 2013-01-16 | 上海市电力公司 | Charged detecting circuit for forcible locking device |
| CN102881491A (en) * | 2011-07-12 | 2013-01-16 | 上海市电力公司 | Passive forcible locking device |
| CN103018524A (en) * | 2012-11-30 | 2013-04-03 | 四川省电力公司内江电业局 | Electrification display detection device of high-voltage power system |
| CN103048523A (en) * | 2011-10-14 | 2013-04-17 | 四川蓝迅宝迩电子科技有限公司 | Live display device of looped network cabinet |
| CN105137155A (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Live displayer based on split modules |
-
2010
- 2010-07-13 CN CN2010202569495U patent/CN201780325U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761101A (en) * | 2011-04-28 | 2012-10-31 | 吉林省电力有限公司四平供电公司 | High-voltage electrified display system with anti-fault interface |
| CN102761101B (en) * | 2011-04-28 | 2017-02-08 | 吉林省电力有限公司四平供电公司 | High-voltage electrified display system with anti-fault interface |
| CN102879628A (en) * | 2011-07-12 | 2013-01-16 | 上海市电力公司 | Charged detecting circuit for forcible locking device |
| CN102881491A (en) * | 2011-07-12 | 2013-01-16 | 上海市电力公司 | Passive forcible locking device |
| CN102879628B (en) * | 2011-07-12 | 2015-04-08 | 上海市电力公司 | Charged detecting circuit for forcible locking device |
| CN103048523A (en) * | 2011-10-14 | 2013-04-17 | 四川蓝迅宝迩电子科技有限公司 | Live display device of looped network cabinet |
| CN103018524A (en) * | 2012-11-30 | 2013-04-03 | 四川省电力公司内江电业局 | Electrification display detection device of high-voltage power system |
| CN105137155A (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Live displayer based on split modules |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201780325U (en) | High-voltage charged display | |
| CN101546962B (en) | Power supply device | |
| CN206452095U (en) | A kind of over under-voltage protection circuit and set top box | |
| CN202676816U (en) | A photoelectric coupling device, photoelectric coupling detection circuits, and an indication circuit | |
| CN103779829A (en) | Load protection circuit | |
| CN108039695B (en) | Overvoltage crowbar | |
| CN104218532A (en) | Voltage protection circuit for frequency converter direct current (DC) bus | |
| CN204347214U (en) | A kind of injection type power generator carbon brush contact detecting apparatus | |
| CN106299180B (en) | The combination of electric tool and battery pack | |
| CN202206118U (en) | Current mutual induction secondary over-voltage protection device | |
| CN109613968A (en) | Power supply redundant output circuit with short-circuit protection | |
| CN207638631U (en) | A kind of IGBT protection circuit | |
| CN104466897B (en) | A kind of overvoltage crowbar and lamps and lanterns | |
| CN202421457U (en) | Motor over-current detection circuit | |
| CN210957880U (en) | Direct current charging control guide circuit of charging pile | |
| CN202586752U (en) | Low-voltage protection linear power supply circuit and television set | |
| CN209182386U (en) | The airborne device looses power offline inspection circuit of direct current | |
| CN207603205U (en) | A kind of overvoltage, current foldback circuit | |
| CN202840472U (en) | Electric leakage protection device | |
| CN102694541A (en) | Self-locking loop circuit | |
| CN105954587B (en) | A kind of harmonics detection circuit and its detection method of distribution system | |
| CN204719123U (en) | A kind of overvoltage undervoltage detection circuit | |
| CN219329604U (en) | Overload protection circuit of mining base station controller | |
| CN110244175A (en) | A kind of high-voltage detecting circuit and high pressure connect circuit | |
| CN204258637U (en) | Integrated power supply module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20190713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |