CN105811255B - High-voltage electriferous display locking device - Google Patents
High-voltage electriferous display locking device Download PDFInfo
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- CN105811255B CN105811255B CN201410832413.6A CN201410832413A CN105811255B CN 105811255 B CN105811255 B CN 105811255B CN 201410832413 A CN201410832413 A CN 201410832413A CN 105811255 B CN105811255 B CN 105811255B
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Abstract
A kind of high-voltage electriferous display locking device, including sensing unit, the signal amplification unit that is connected on sensing unit output terminal, the A/D sampling units for being connected on signal amplification unit output terminal, the signal processing for being connected on A/D sampling unit output terminals and control unit, the display unit for being connected on signal processing and control unit output terminal and interlocking signal output unit and the power supply power supply unit for each unit power supply, sensing unit use touch sensor or inductosyn.It can be suitble to the input of two kinds of different number grade signals of touch sensor and inductosyn, device outputs node and microcomputer type is supplied to prevent electric misoperation device, effectively prevent the maloperation to 6kV, 10kV and 35kV switchgear rear cabinet door, it can automatically switch power supply, and have the function of that dead electricity exports block signal.
Description
Technical field
The present invention relates to a kind of HV live displayings applied in microprocessor-based products of power system prevents electric misoperation system
Blocking device.
Background technology
With the increasingly raising of the anti-error level of substation, being growing for anti-misoperation covering surface is happened in substation
Serious accident reduce year by year.However, due to current substation's middle-high voltage switch " five is anti-" locking system, there are hidden danger, switches
Cabinet anti mis-closedown function is not perfect, can not be that operation maintenance personnel grid switching operation and service personnel's upkeep operation judge that circuit is in the process
No electrification provides foundation, and there are certain security risks.
Invention content
The present invention is to solve the above problem of the existing technology, provide it is a kind of there is forced blocking, so as to
The maloperation to door of switch cabinet is effectively prevent, ensures the high-voltage electriferous display locking device of the safety in production of electric system.
The high-voltage electriferous display locking device of the present invention, is characterized in that：Including sensing unit, to be connected on sensing unit defeated
The signal amplification unit of outlet, is connected on A/D sampling unit output terminals at the A/D sampling units for being connected on signal amplification unit output terminal
Signal processing and control unit, be connected on signal processing and control unit output terminal display unit and interlocking signal output unit
And the power supply power supply unit for each unit power supply, sensing unit use touch sensor or inductosyn；
The feedback circuit one of corresponding inductosyn and corresponding touch sensor are connected in the signal amplification unit
Feedback circuit two；
The power supply power supply unit include the DC power supply branch being made of the AC/DC modules and diode D1 connected and by
The battery powered branch of battery and diode the D2 composition of series connection, the DC power supply branch and battery powered branch are in parallel；
The interlocking signal output unit is made of reset chip, switching circuit and magnetic latching relay, and the magnetic is protected
One group of normally opened node for holding relay is output control terminal, the signal processing and the output control terminal of control unit and switch electricity
The input terminal on road is connected.
The beneficial effects of the invention are as follows：
1st, the input of two kinds of different number grade signals of touch sensor and inductosyn can be suitble to, can both be carried out
Contact measurement, and inductive detection can be carried out, make in-site installation convenient, same substation is frequently present of touch sensor
Output and inductosyn output, are caused easy for installation using a kind of high-voltage electriferous display locking device in this way；
2nd, high voltage display device prevents from electrically accidentally grasping by one group of normally opened node of magnetic latching relay for microcomputer type
Passive bus output is provided as device, there is forced blocking, therefore operating personnel are that can not open in the case where there is electricity condition
Electrical body cabinet door ensures the safety in production of electric system.Device carries out dead electricity control using reset chip to magnetic latching relay,
When present apparatus dead electricity, when operating voltage drops to reset chip threshold value, reset chip reset output signal is made by switching circuit
Magnetic latching relay acts, and makes device that should be able to ensure that magnetic latching relay action is primary under power failure state, magnetic keeps relay
The normally opened node of device is closed.
3rd, using supply voltage Parallel opertation, the additional devices such as relay is not needed to and realize high-voltage electriferous display locking device
Power supply automatic switching function (220VAC and battery), it can be achieved that automatically switch, if power supply 220V dead electricity, automatically switch
To battery powered, when 220V power supplys are powered, battery power consumption 0W.Direct current is exported by power module and seals in diode and battery confession
Electricity seals in diode and then parallel connection to system power supply, and leakage current is generated when preventing from powering simultaneously using 2 diodes.
4th, electrical body is detected using touch sensor and inductosyn, can realizes open electrical verification before cabinet door
Operation, electrical verification have the function of forced blocking not by can not open door of switch cabinet, effectively prevent to 6kV, 10kV and
The maloperation of 35kV switchgear rear cabinet doors, has ensured the safety in production of electric system.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of the present invention；
Fig. 2 is the schematic block circuit diagram of interlocking signal output unit；
Fig. 3 is the circuit diagram of power supply power supply unit.
Specific embodiment
As shown in Figure 1, the high-voltage electriferous display locking device, including sensing unit, it is connected on the letter of sensing unit output terminal
Number amplifying unit, is connected at the signal of A/D sampling unit output terminals the A/D sampling units for being connected on signal amplification unit output terminal
Reason and control unit, the display unit for being connected on signal processing and control unit output terminal and interlocking signal output unit and be each
The power supply power supply unit of unit power supply, sensing unit use touch sensor or inductosyn；
The feedback circuit one of corresponding inductosyn is connected between the output terminal of the signal amplification unit and input terminal
With the feedback circuit two of corresponding touch sensor；It is adjusted by selecting in feedback circuit one and feedback circuit two feedback impedance value
Whole amplification factor has access to inductosyn and the two distinct types of signal source of touch sensor.
As shown in Fig. 2, the interlocking signal output unit is by reset chip, switching circuit and magnetic latching relay structure
Into being connected to resistance R1 and triode D3, one group of normally opened node of the magnetic latching relay between reset chip and switching circuit
Electric misoperation device is prevented to be connected with microcomputer type for output control terminal.The reset output terminal of the reset chip is through triode D3
It is connected with the output control terminal of signal processing and control unit with the input terminal of switching circuit, co- controlling magnetic latching relay
Control terminal.
The normally opened node of magnetic latching relay is closed prevents electric misoperation device from providing forced blocking function for microcomputer type,
When high-voltage electriferous display locking device detects that electrical body band electric control relay is closed by sensing unit, magnetic latching relay
Normally opened node is closed, operating personnel if it is desired to it must be off-state to open the electrical body cupboard door lock node, it is achieved thereby that
The function of forced blocking.
As shown in figure 3, the power supply power supply unit, the direct current formed including the AC/DC modules by connecting and diode D1
The battery powered branch that power branch and the battery by connecting and diode D2 are formed, the DC power supply branch and battery powered
Branch is in parallel.Using low-voltage parallel connection, i.e., battery is in parallel with DC power supply, prevents from powering simultaneously by sealing in two diodes
When leakage of current.
Claims (1)
1. high-voltage electriferous display locking device, including power supply power supply unit, the power supply power supply unit includes the AC/DC by connecting
The battery powered branch that the DC power supply branch and the battery by connecting and diode D2 of module and diode D1 compositions form, institute
It states DC power supply branch and battery powered branch is in parallel, it is characterized in that：It further includes sensing unit, be connected on sensing unit output terminal
Signal amplification unit, be connected on the A/D sampling units of signal amplification unit output terminal, be connected on the letter of A/D sampling unit output terminals
Number processing and control unit, be connected on signal processing and control unit output terminal display unit and interlocking signal output unit and
For the power supply power supply unit of each unit power supply, the sensing unit uses touch sensor or inductosyn；
The feedback circuit one of corresponding inductosyn is connected in the signal amplification unit and corresponds to the anti-of touch sensor
Current feed circuit two；
The interlocking signal output unit is made of reset chip, switching circuit and magnetic latching relay, the magnetic keep after
One group of normally opened node of electric appliance is output control terminal, the output control terminal and switching circuit of the signal processing and control unit
Input terminal is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410832413.6A CN105811255B (en) | 2014-12-29 | 2014-12-29 | High-voltage electriferous display locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410832413.6A CN105811255B (en) | 2014-12-29 | 2014-12-29 | High-voltage electriferous display locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105811255A CN105811255A (en) | 2016-07-27 |
| CN105811255B true CN105811255B (en) | 2018-06-26 |
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ID=56981446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410832413.6A Active CN105811255B (en) | 2014-12-29 | 2014-12-29 | High-voltage electriferous display locking device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105811255B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336824A (en) * | 2018-03-16 | 2018-07-27 | 珠海康晋电气股份有限公司 | Anti-misoperation locking circuit and automatic power distribution system |
| CN109030918A (en) * | 2018-08-20 | 2018-12-18 | 江苏邦泰电气有限公司 | A kind of HV live displaying locking system |
| CN113436410B (en) * | 2021-06-02 | 2022-12-02 | 内蒙古蒙电华能热电股份有限公司乌海发电厂 | False opening alarm device of high tension switchgear backplate |
Citations (7)
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| CN2697663Y (en) * | 2004-04-15 | 2005-05-04 | 许一声 | High-voltage charged display device |
| CN2927065Y (en) * | 2006-04-25 | 2007-07-25 | 孙登峰 | High-pressure electric display locker of three-phase controlled inductive |
| CN201130213Y (en) * | 2007-11-15 | 2008-10-08 | 广州锐翔电力工程设备有限公司 | High pressure electrification display trigger device for induction high pressure armored cable of electrification state |
| CN101692534A (en) * | 2009-06-24 | 2010-04-07 | 张敬敏 | Blocking against misoperation, alarming and protecting device of high-voltage switch cabinet |
| CN202013624U (en) * | 2011-05-05 | 2011-10-19 | 李实亿 | Watchdog device for high voltage switch cabinet |
| CN203385783U (en) * | 2013-06-27 | 2014-01-08 | 成都国能龙源科技有限公司 | Low-power intelligent high-voltage charged display locking device based on AVR microcontroller |
| CN204290074U (en) * | 2014-12-29 | 2015-04-22 | 辽宁拓新电力电子有限公司 | High-voltage electriferous display locking device |
-
2014
- 2014-12-29 CN CN201410832413.6A patent/CN105811255B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697663Y (en) * | 2004-04-15 | 2005-05-04 | 许一声 | High-voltage charged display device |
| CN2927065Y (en) * | 2006-04-25 | 2007-07-25 | 孙登峰 | High-pressure electric display locker of three-phase controlled inductive |
| CN201130213Y (en) * | 2007-11-15 | 2008-10-08 | 广州锐翔电力工程设备有限公司 | High pressure electrification display trigger device for induction high pressure armored cable of electrification state |
| CN101692534A (en) * | 2009-06-24 | 2010-04-07 | 张敬敏 | Blocking against misoperation, alarming and protecting device of high-voltage switch cabinet |
| CN202013624U (en) * | 2011-05-05 | 2011-10-19 | 李实亿 | Watchdog device for high voltage switch cabinet |
| CN203385783U (en) * | 2013-06-27 | 2014-01-08 | 成都国能龙源科技有限公司 | Low-power intelligent high-voltage charged display locking device based on AVR microcontroller |
| CN204290074U (en) * | 2014-12-29 | 2015-04-22 | 辽宁拓新电力电子有限公司 | High-voltage electriferous display locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105811255A (en) | 2016-07-27 |
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