CN202737573U - DC dual-power automatic switching control device - Google Patents
DC dual-power automatic switching control device Download PDFInfo
- Publication number
- CN202737573U CN202737573U CN2012204657466U CN201220465746U CN202737573U CN 202737573 U CN202737573 U CN 202737573U CN 2012204657466 U CN2012204657466 U CN 2012204657466U CN 201220465746 U CN201220465746 U CN 201220465746U CN 202737573 U CN202737573 U CN 202737573U
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- microprocessor
- dual
- automatic switching
- power automatic
- control device
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Abstract
The utility model provides a DC dual-power automatic switching control device. A work pattern selector switch is connected with a microprocessor. A charging voltage acquisition module is interconnected with the microprocessor. A communication port is interconnected with the microprocessor. An input contact is unilaterally connected with the microprocessor. The microprocessor is unilaterally connected with a status indicator and an output contact. The microprocessor is unilaterally connected with a stored program control breaker through a drive module. A status detector is respectively unilaterally connected with the microprocessor and the stored program control breaker. The DC dual-power automatic switching control device can perform DC dual-power switching, and is characterized by good switching effect and safe switching. The device is suitable to be applied as a DC dual-power automatic switching control device of electronic equipment.
Description
Technical field
The utility model proposes the direct-current dual power automatic switching control equipment of power supply appliance field.
Background technology
Direct current system plays an important role in electric power system as the power source of transformer station.In order to improve its safety and reliability, original " one fills one holds " pattern progressively is improved to " two fill one holds " pattern, and wherein, one group of charger is " normal power source ", and another group is " stand-by power supply ".At present, break down when maybe needing to overhaul at " normal power source ", what adopt is the mode of operation of " first artificial cut-out ' normal power source '; then manually drop into ' stand-by power supply ' ", hysteresis on the life period and blind area (" normal power source " output fault, but fail to find) and the defective such as misoperation, for unattended operation transformer station, might be owing to can't when breaking down, very first time processing causing major accident.
The peculiar problem of unattended operation transformer station: because the charger faults itself (cause detecting self output fault or not on send fault message) even, when the reasons such as signal transmission, telecommunication cause " normal power source " to export fault, remote supervisory and control(ling) equipment also can't be learnt warning message; Even remote supervisory and control(ling) equipment detects alarm condition, but because not discovery and processing of human factor; Can't the very first time rush towards in-situ processing, processing fault from breaking down to needs the long period (especially breaking down night), has buried major safety risks.There is monitoring " blind area ": when causing " normal power source " output fault owing to a variety of causes, can not in time be found and process.
Fault handling time lags behind: obtaining processing from the fault that breaks down often needs the long period; During charger output fault, in the serious deteriorated situation of accumulator property, the time that can keep may be very short, and the time that manual switchover needs is relatively long.The wasting of resources, inefficiency: waste of manpower and time, and operating efficiency is very low.The potential safety hazard that human factor causes: equipment has warning, does not in time find and processes; Since staff carelessness may cause leaking throw, wrongly throw, and the problem such as throwing.
The utility model content
In order to realize that direct-current dual power automaticallyes switch, and the utility model proposes the direct-current dual power automatic switching control equipment.This device is connected with functional part by microprocessor, solves the technical problem that direct-current dual power automaticallyes switch.
The scheme that the utility model technical solution problem adopts is: the mode of operation diverter switch is connected with microprocessor, charging voltage acquisition module and microprocessor interconnect, PORT COM and microprocessor interconnect, the input contact is connected with microprocessor is unidirectional, the indication of microprocessor and state is connected with output contact and is connected, microprocessor is connected with program control circuit breaker is unidirectional by driver module, state detector respectively with microprocessor be connected that circuit breaker is unidirectional to be connected.
Good effect, the utility model device can carry out direct-current dual power and switch, and have effective, the safe characteristics of switching.Suitable direct-current dual power automatic switching control equipment as electrical circuitry equipment is used.
Description of drawings
Fig. 1 is the utility model switching device shifter pie graph.
Embodiment
The mode of operation diverter switch is connected with microprocessor, charging voltage acquisition module and microprocessor interconnect, PORT COM and microprocessor interconnect, the input contact is connected with microprocessor is unidirectional, the indication of microprocessor and state is connected with output contact and is connected, microprocessor is connected with program control circuit breaker is unidirectional by driver module, state detector respectively with microprocessor be connected that circuit breaker is unidirectional to be connected.
The course of work of the present utility model:
Program control circuit breaker+control module pattern:
Adopt program control circuit breaker as the major loop separating/closing mechanism, adopt microprocessor to gather the charger output voltage/electric current, and reserve PORT COM and contact input output port, by driver module control circuit breaker deciliter, adopt simultaneously mechanical interlocked mode to guarantee its Reliability of Microprocessor.
Characteristics: directly gather the charger state output terminal, not disturbed by extraneous factor, guaranteed the authenticity of information and the rapidity of action; Adopt the program control circuit breaker of high-performance, electromagnetic mechanical type switch deciliter, reliability is safe; Delay time: depend on " direct current is vowed the pressure/current detecting time " (detect direct current arrow pressure/electric current and need to judge voltage change process and carry out filtering, in order to avoid erroneous judgement) and " program control circuit breaker " mechanical action time, generally need several seconds.
Acquisition method one: in order accurately to gather the charger output voltage, and be not subjected to busbar voltage (accumulator battery voltage) impact, need the serial connection heavy-duty diode, can cause thus existing between charger output voltage and the busbar voltage voltage drop (about general 1V), therefore, the output voltage of charger should be adjusted into busbar voltage+1V;
Acquisition method two: series diode not, fall (during charger output fault, charger output end voltage=battery voltage, therefore, " voltage falls "=" float charge voltage/even charging voltage "-" battery voltage ") by voltage.
The charger output current is judged:
Under normal circumstances, the machine utilization electric current provides (solenoid operated closing mechanism needs charger and batteries jointly to provide) by charger, therefore, judges whether fault by gathering the charger output current.
Charger output fault is judged: device is reserved " input interface " and " communication interface ", can connect the fault output contact/PORT COM of charger, as the fault basis for estimation.Device is reserved " RCI ", can pass through backstage Long-distance Control switching state.
When carrying out withstand voltage test, control module must disconnect with major loop, in order to avoid damage controller.Because " direct-current dual power automatic switching control equipment " is the switching state of controlling between two chargers " direct current output " and the bus, therefore, " normal power source " and " stand-by power supply " all need power on, and is in " Hot Spare " state.
The direct-current dual power automatic switching control equipment has following functions:
Have automatic, manual and the disconnected three kinds of patterns of complete shut-down:
Automatic mode: " guidance command " according to " direct current is vowed pressure/lower current limit " of adjusting, " the charger fault output contact " information that reaches input and PORT COM receive, automatically switch through behind the delay time of adjusting;
Manual mode: the switching state of manual operation " normal power source " and " stand-by power supply ";
The complete shut-down pattern of breaking: " normal power source " and " stand-by power supply " all cut off, out of service.
Input message: as the Rule of judgment that whether needs under " automatic mode " to switch.
Charger output fault: device is inner to be gathered automatically.
Contact input interface: can connect charger malfunction output contact or Long-distance Control contact.PORT COM: can connect charger, receive the charger fault message; Or connect other host computer receiving remote control commands.
Output information: other information such as the operating state that output equipment is current and warning message.
PORT COM: can with the equipment connections such as host computer, carry out information transmission and Long-distance Control.Contact input interface: provide without source contact output, gather for other equipment.
Claims (1)
1. direct-current dual power automatic switching control equipment, it is characterized in that: the mode of operation diverter switch is connected with microprocessor, charging voltage acquisition module and microprocessor interconnect, PORT COM and microprocessor interconnect, the input contact is connected with microprocessor is unidirectional, the indication of microprocessor and state is connected with output contact and is connected, and microprocessor is connected with program control circuit breaker is unidirectional by driver module, state detector respectively with microprocessor be connected that circuit breaker is unidirectional to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204657466U CN202737573U (en) | 2012-09-13 | 2012-09-13 | DC dual-power automatic switching control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204657466U CN202737573U (en) | 2012-09-13 | 2012-09-13 | DC dual-power automatic switching control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737573U true CN202737573U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204657466U Expired - Lifetime CN202737573U (en) | 2012-09-13 | 2012-09-13 | DC dual-power automatic switching control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202737573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891529A (en) * | 2012-09-13 | 2013-01-23 | 辽宁省电力有限公司葫芦岛供电公司 | Automatic switching device of direct current dual power |
-
2012
- 2012-09-13 CN CN2012204657466U patent/CN202737573U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891529A (en) * | 2012-09-13 | 2013-01-23 | 辽宁省电力有限公司葫芦岛供电公司 | Automatic switching device of direct current dual power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |