CN204631646U - A kind of line protective devices with dehumidifying - Google Patents
A kind of line protective devices with dehumidifying Download PDFInfo
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- CN204631646U CN204631646U CN201520234409.XU CN201520234409U CN204631646U CN 204631646 U CN204631646 U CN 204631646U CN 201520234409 U CN201520234409 U CN 201520234409U CN 204631646 U CN204631646 U CN 204631646U
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Abstract
The utility model discloses a kind of line protective devices with dehumidifying, it is characterized in that: also comprise the humidity alarm circuit and dehumidifier that are installed on described line protective devices inside, described humidity alarm circuit comprises induction module; Respond module; Execution module; Alarm module; Dehumidifier driver module.Such setting, when humidity is abnormal, drives dehumidifier work; line protective devices are dehumidified, when dehumidifier cannot solve the situation of humidity exception in time, can user be reminded; avoid error-detecting and monitoring, avoid inner member and damage further because humidity is too high.
Description
Technical field
The utility model relates to a kind of line protective devices, and more particularly, it relates to a kind of line protective devices with dehumidifying.
Background technology
Line protective devices are mainly used in the protection observing and controlling of the spacer units of each electric pressure; possess perfect protection, measurement, control, automatic closing and communication monitoring function; for the protection and control of transformer station, generating plant, high and low voltage electric distribution and station service electrical system provides total solution, the safe and stable operation of high-low pressure electrical network and station service electrical system effectively can be ensured.Can protect with other, together with automation equipment, form automated system by communication interface.
The main protection of line protective devices configuration has: three sections of overcurrent protections, overcurrent acceleration, overload, three-phase single shot reclosing, low-frequency load reduction, zero-sequencedirectional protection, PT break, control broken string, low-voltage variation, overvoltage protection etc.Be applicable to the route protection of below 110kV electric pressure.
But at present in the use of line protective devices; due to some specific environmental impacts; the normal use, the particularly work of some foil gauges and relay of meeting effect string line protection device, be very easy to by humidity effect; when humidity is larger; the contact that can affect relay is withstand voltage, and in this case, line protective devices cannot be brought into normal play effect; user can be had influence on to the judgement of circuit and monitoring demand, easily cause larger electricity consumption hidden danger.
Utility model content
For the deficiency that prior art exists; the purpose of this utility model be to provide a kind of can humidity condition near automatic inspection line line protection device; when humidity is higher than preset value; control dehumidification module work and reduce line protective devices interior humidity; prevent electric original copy condensation, and provide alarm function to point out a kind of line protective devices of user's exception.
For achieving the above object, the utility model provides following technical scheme: a kind of line protective devices with dehumidifying, also comprise the humidity alarm circuit and dehumidifier that are installed on described line protective devices inside, described humidity alarm circuit comprises induction module, for detecting the ambient humidity, light and temperature situation of described line protective devices, when humidity is higher than output abnormality signal during preset voltage value; Respond module, is coupled to induction module, receive abnormal signal, when the abnormal signal duration received more than the first preset time value time, send executive signal; Execution module, is coupled to respond module, receive executive signal, when receiving executive signal send drive singal, when the executive signal duration received more than the second preset time value time, send alarm signal; Alarm module, is coupled to execution module, receiving alarm signal, when receiving alarm signal, reminds user's abnormal state; Dehumidifier driver module, receives drive singal, when receiving drive singal, reminds user's abnormal conditions.
Such setting, when line protective devices of the present utility model work under normal circumstances, induction module induction judges humidity size, and humidity simulation model is converted into electric signal feeds back, humidity is no more than preset value, abnormal signal can not be sent, so subsequent module also can not work on, so line protective devices can normally work, but when line protective devices are inner or ambient humidity, light and temperature too high (such as at rainy day environment or when using in wet condition), the electric signal transformed judges through induction module, output abnormality signal, and judge that the accuracy of this abnormal model is (if in the higher situation of humidity environment via respond module, abnormal signal should be one section of continuous print level, if because magnetic field or temperature affect the signal transmission of element, so abnormal signal should be interrupted), if not the abnormal signal produced because of disturbance, so after time delay in short-term, send executive signal, execution module sends a signal to dehumidifier driver module and drives dehumidifier simultaneously, and execution module carries out a period of time time delay (the second preset value), during this period of time, if user solves abnormal conditions, execution module can not send alarm signal to exporting, mistake would not jump electricity like this, if but execution module is after time delay, situation is still unresolved, so control alarm module work, remind user's problem not processed.
The utility model can be set to further: described induction module comprises test section, for detecting the ambient humidity, light and temperature of described line protective devices, and humidity size is converted into voltage signal; Reference section, for providing preset voltage value; Comparing section, arrange two input ends and an output terminal, wherein two input ends are connected to test section and reference section, and for comparing the voltage that test section and reference section provide, output terminal is used for output abnormality signal.
The utility model can be set to further: described respond module comprises switch portion, is connected to described comparing section output terminal; First relay coil, is controlled by switch portion; First relay normally open contact, in response to the first relay coil adhesive; Very first time relay coil, for arranging very first time preset value, when coil obtains electric lasting very first time preset value, outputting alarm signal.
The utility model can be set to further: described execution module comprises very first time relay normally open contact, in response to described very first time relay coil adhesive; Second time relay coil, is coupled to very first time relay normally open contact, for arranging the second time preset value, when coil obtains electric lasting second time preset value, exports executive signal; Second relay coil, is coupled to the second time relay coil, the output drive signal when coil obtains electric.
The utility model can be set to further: described alarm module comprises the second time relay normally opened contact, in response to described second time relay coil adhesive; Second relay coil, is coupled to the second time relay normally opened contact, for the adhesive of Control protection switch; Hummer, is coupled to the second relay normally open contact; Stand by lamp, is coupled to hummer.
The utility model can be set to further: be in series with a pilot lamp between described second time relay coil and the second relay coil.
The utility model can be set to further: described dehumidifier driver module comprises driving power, and its high level couples described dehumidifier; Second relay normally open contact, is connected to driving power high level; There is chip in PWM, its feeder ear is connected to the second relay normally open contact, and its PWM output terminal is coupled by the control pole of a diode and switching tube, and described diode anode connects PWM output terminal; Described switching tube controlled terminal is even coupled to described dehumidifier.
Compared to prior art; the utility model creates following beneficial effect: arrange like this; when humidity is abnormal; driving dehumidifier works; line protective devices are dehumidified, when dehumidifier cannot solve the situation of humidity exception in time, can user be reminded; avoid error-detecting and monitoring, avoid inner member and damage further because humidity is too high.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment circuit diagram one;
Fig. 2 is the utility model embodiment circuit diagram two.
Reference numeral: 1, induction module; 12, test section; 11, reference section; 13, comparing section; 2, respond module; 21, switch portion; 22, judging part; 3, execution module; 4, alarm module; 5, master controller.
Embodiment
See figures.1.and.2 and the utility model embodiment is described further.
A kind of line protective devices with dehumidifying, comprise master controller 5, also comprise the humidity alarm circuit being installed on line protective devices inside, humidity alarm circuit comprises induction module 1, for the ambient humidity, light and temperature situation of detection line protective device, when humidity is higher than output abnormality signal during preset voltage value; Respond module 2, is coupled to induction module 1, receive abnormal signal, when the abnormal signal duration received more than the first preset time value time, send alarm signal; Execution module 3, is coupled to respond module 2, receiving alarm signal, when receiving alarm signal, reminds user abnormal conditions, when the alarm signal duration received more than the second preset time value time, send executive signal; Alarm module 4, is coupled to execution module 3, receives executive signal, when receiving executive signal, sending and jumping electric signal; Protection switch km2, between the feeder ear being connected to master controller 5 and power end, when receiving jumping electric signal, disconnects the connection between the feeder ear of master controller 5 and power end.
Such setting, when line protective devices of the present utility model work under normal circumstances, induction module induction judges humidity size, and humidity simulation model is converted into electric signal feeds back, humidity is no more than preset value, abnormal signal can not be sent, so subsequent module also can not work on, so line protective devices can normally work, but when line protective devices are inner or ambient humidity, light and temperature too high (such as at rainy day environment or when using in wet condition), the electric signal transformed judges through induction module, output abnormality signal, and judge that the accuracy of this abnormal model is (if in the higher situation of humidity environment via respond module, abnormal signal should be one section of continuous print level, if because magnetic field or temperature affect the signal transmission of element, so abnormal signal should be interrupted), if not the abnormal signal produced because of disturbance, so after time delay in short-term, send executive signal, execution module sends a signal to dehumidifier driver module and drives dehumidifier simultaneously, and execution module carries out a period of time time delay (the second preset value), during this period of time, if user solves abnormal conditions, execution module can not send alarm signal to exporting, mistake would not jump electricity like this, if but execution module is after time delay, situation is still unresolved, so control alarm module work, remind user's problem not processed.
Induction module 1 comprises test section 12, for the ambient humidity, light and temperature of detection line protective device, and humidity size is converted into voltage signal; It comprises the 3rd resistance R3 and the quick resistance of positive coefficient humidity that are arranged in series, and intermediate node provides electrical signal voltage value, and wherein the resistance of the 3rd resistance R3 is set to 470 ohm.
Reference section 11, for providing preset voltage value, comprise the first resistance R1 be arranged in series, second resistance R2 and adjustable resistance RP, the node that first resistance R1 and the second resistance R2 couples formation provides comparative voltage, like this by regulating the resistance of adjustable resistance RP, just can realize the control to reference section 11 collection signal, to ensure difference environmentally to arrange different gear value, and when regulating, reference voltage to zero can not be made, to ensure the normal output of abnormal signal, adjustable resistance RP maximum value is set to 1 kilohm, second resistance R2 resistance is set to 300 ohm, first resistance R1 resistance equals the 3rd resistance R3 resistance, be set to 470 ohm.
Comparing section 13, arranges two input ends and an output terminal, and wherein two input ends are connected to test section 12 and reference section 11, for comparing the voltage that test section 12 and reference section 11 provide, output terminal is used for output abnormality signal, and comparing section 13 comprises a comparer, and its model elects LM335 as.
Respond module 2 comprises switch portion, is connected to comparing section 13 output terminal; It is made up of two parts, and switch portion 21 comprises the 5th resistance R5 and the 4th resistance R4 that are arranged in series, and its intermediate node connects the control pole of a switching tube, and the controlled terminal of switching tube, then for controlling the first relay coil KM1, is controlled by switch portion 21; Judging part 22 comprises the first relay normally open contact km1, in response to the first relay coil KM1 adhesive; Very first time relay coil KT1, for arranging very first time preset value, when coil obtains electric lasting very first time preset value, outputting alarm signal, described 5th resistance R5 resistance elects 470 ohm as, 4th resistance R4 resistance elects 100 ohm as, switching tube model elects 9014 as, very first time relay set of time is 1 second, that is when respond module 2 receive signal more than 1 second after, just can trigger execution module 3 and work, when discontinuity signal export time, very first time relay all can reset and again count, and have ignored because environment reason causes disturbing influence.
Execution module 3 comprises very first time relay normally open contact kt1, in response to very first time relay coil KT1 adhesive; Second time relay coil KT2, is coupled to very first time relay normally open contact kt1, for arranging the second time preset value, when coil obtains electric lasting second time preset value, and outputting alarm signal; Second time relay set of time is 5 minutes; if because humidity needs to affect electricity component; need to form at element surface the time that condensation knot needs at least 10 minutes; if so 5 minutes problems do not solve; so trigger alarm module can carry out alert operation; but execution module 3 remains and is in obtain electricity condition; dehumidifying can be continued; this arranges the relatively independent power supply of circuit; can not the normal use of effect string line protection device, and the second relay coil KM2 can export and controls the work of dehumidifier driving circuit invocation point.
Dehumidifier driver module 5 comprises the second relay normally open contact km2, for controlling PWM generator work, there is chip and can select DSP or RAM etc. chip of PWM ripple can occur for any one in described PWM, its output terminal can couple a diode D1 and export impact for preventing signals reverse, and control a metal-oxide-semiconductor M1 to carry out driving dehumidifier FAN1 and work, dehumidifier principle of work is as follows: comprise a blower fan, with some ventilation ducts, once fan starting, suck the air-flow that humidity is larger, through the dry body of some ventilation ducts to, dry body carries out desiccant dehumidification to internal gas flow, again by the enclosure interior draining into line protective devices of the present utility model of drying, it should be noted that, although arrange a dehumidifier, but the inner dry body of this dehumidifier needs timing to change, but consider and need to drive the situation of dehumidifier few, so generally larger inconvenience can not be caused to user.
Alarm module 4 comprises the second time relay normally opened contact kt2, in response to the second time relay coil KT2 adhesive; Hummer SP, is coupled to the second time relay normally opened contact KT2; Stand by lamp EL, is coupled to hummer SP, if user by Resolving probiems, so can not affect its normal observing and controlling after the stand by lamp EL and hummer SP prompting of execution module 3.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. the line protective devices with dehumidifying, is characterized in that: also comprise the humidity alarm circuit and dehumidifier that are installed on described line protective devices inside, described humidity alarm circuit comprises
Induction module, for detecting the ambient humidity, light and temperature situation of described line protective devices, when humidity is higher than output abnormality signal during preset voltage value;
Respond module, is coupled to induction module, receive abnormal signal, when the abnormal signal duration received more than the first preset time value time, send executive signal;
Execution module, is coupled to respond module, receive executive signal, when receiving executive signal, send drive singal, when the executive signal duration received more than the second preset time value time, send alarm signal;
Alarm module, is coupled to execution module, receiving alarm signal, when receiving alarm signal, reminds user's abnormal state;
Dehumidifier driver module, receives drive singal, when receiving drive singal, reminds user's abnormal conditions.
2. a kind of line protective devices with dehumidifying according to claim 1, is characterized in that: described induction module comprises
Test section, for detecting the ambient humidity, light and temperature of described line protective devices, and is converted into voltage signal by humidity size;
Reference section, for providing preset voltage value;
Comparing section, arrange two input ends and an output terminal, wherein two input ends are connected to test section and reference section, and for comparing the voltage that test section and reference section provide, output terminal is used for output abnormality signal.
3. a kind of line protective devices with dehumidifying according to claim 2, is characterized in that: described respond module comprises
Switch portion, is connected to described comparing section output terminal;
First relay coil, is controlled by switch portion;
First relay normally open contact, in response to the first relay coil adhesive;
Very first time relay coil, for arranging very first time preset value, when coil obtains electric lasting very first time preset value, outputting alarm signal.
4. a kind of line protective devices with dehumidifying according to claim 3, is characterized in that: described execution module comprises
Very first time relay normally open contact, in response to described very first time relay coil adhesive;
Second time relay coil, is coupled to very first time relay normally open contact, for arranging the second time preset value, when coil obtains electric lasting second time preset value, exports executive signal;
Second relay coil, is coupled to the second time relay coil, the output drive signal when coil obtains electric.
5. a kind of line protective devices with dehumidifying according to claim 4, is characterized in that: described alarm module comprises
Second time relay normally opened contact, in response to described second time relay coil adhesive;
Second relay coil, is coupled to the second time relay normally opened contact, for the adhesive of Control protection switch;
Hummer, is coupled to the second relay normally open contact;
Stand by lamp, is coupled to hummer.
6. a kind of line protective devices with dehumidifying according to claim 4, is characterized in that: be in series with a pilot lamp between described second time relay coil and the second relay coil.
7. a kind of line protective devices with dehumidifying according to claim 1 or 2 or 3 or 4 or 5 or 6, is characterized in that: described dehumidifier driver module comprises
Driving power, its high level couples described dehumidifier;
Second relay normally open contact, is connected to driving power high level;
There is chip in PWM, its feeder ear is connected to the second relay normally open contact, and its PWM output terminal is coupled by the control pole of a diode and switching tube, and described diode anode connects PWM output terminal; Described switching tube controlled terminal is even coupled to described dehumidifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520234409.XU CN204631646U (en) | 2015-06-24 | 2015-06-24 | A kind of line protective devices with dehumidifying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520234409.XU CN204631646U (en) | 2015-06-24 | 2015-06-24 | A kind of line protective devices with dehumidifying |
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| CN204631646U true CN204631646U (en) | 2015-09-09 |
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| CN201520234409.XU Expired - Fee Related CN204631646U (en) | 2015-06-24 | 2015-06-24 | A kind of line protective devices with dehumidifying |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106600867A (en) * | 2017-02-28 | 2017-04-26 | 武汉百络优物联科技有限公司 | Door magnetic inductor |
| CN112730523A (en) * | 2020-12-22 | 2021-04-30 | 苏州鸿本生物环保科技有限公司 | Humidity detection system |
-
2015
- 2015-06-24 CN CN201520234409.XU patent/CN204631646U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106600867A (en) * | 2017-02-28 | 2017-04-26 | 武汉百络优物联科技有限公司 | Door magnetic inductor |
| CN112730523A (en) * | 2020-12-22 | 2021-04-30 | 苏州鸿本生物环保科技有限公司 | Humidity detection system |
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| Date | Code | Title | Description |
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| 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: 20150909 Termination date: 20160624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |