CN102832589A - Electric leakage measurement and control system and measurement and control method thereof - Google Patents
Electric leakage measurement and control system and measurement and control method thereof Download PDFInfo
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- CN102832589A CN102832589A CN2012103129941A CN201210312994A CN102832589A CN 102832589 A CN102832589 A CN 102832589A CN 2012103129941 A CN2012103129941 A CN 2012103129941A CN 201210312994 A CN201210312994 A CN 201210312994A CN 102832589 A CN102832589 A CN 102832589A
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Abstract
The invention discloses an electric leakage measurement and control system and an electric leakage measurement and control method. The measurement and control system comprises a power distribution and transmission module, a grid line, an electric leakage monitoring module, an information processing terminal module and an operation processing module, which are in serial communication connection. The electric leakage measurement and control system also comprises a testing voltage module for transmitting testing voltage to the grid line when the power distribution and transmission module stops transmitting power distribution voltage. The testing voltage module, the grid line, the electric leakage monitoring module, the information processing terminal module and the operation processing module are sequentially connected in series. According to the electric leakage measurement and control system, the problem that a power distribution station stops supplying power and cannot be automatically recovered when the grid line fails in the prior art is solved.
Description
Technical field
The present invention relates to a kind of TT&C system and investigating method thereof, be specifically related to a kind of electric leakage TT&C system and investigating method thereof that is used for electric power system.
Background technology
At present, the leakage current detect of power network line mainly carries out real-time leakage current detect through utilization electric leakage instrument transformer to power network line in the electric power system.When the size of current that flows through instrument transformer equates, in the opposite direction, when summation was lower than the leakage current detect preset value, the induction magnetic flux also was close to zero in the transformer iron core, and then the power distribution station automatic switch remains on on-state, and power distribution station is normally transmitted electricity; When electric leakage takes place or has the people to get an electric shock in power network line; An earth fault current is just arranged; Make the magnitude of current that flows through in the instrument transformer be higher than the leakage current detect preset value, magnetic flux appears in induction in the transformer iron core, and its secondary winding has induced current to produce; Output after amplifying, then the tripping operation of power distribution station automatic switch reaches earth leakage protective purpose.Operated by rotary motion has the chance of recovery conveying voltage automatically three times in the prior art; After circulation three times; Power network line is still monitored and is broken down; Power distribution station can cut off electric power output automatically; And recover no longer voluntarily; So can only send electric power personnel detection of grid electric leakage on the spot circuit with charge free; After manual testing's power network line is normal; Could manually-operated recover the electric power conveying; Can't realize the automation control that electric power is carried; Consumed lot of manpower and material resources, and when the manual testing is leaked electricity circuit, be prone to cause certain threat to personal safety.
Summary of the invention
The objective of the invention is to overcome above shortcoming, provide that a kind of fail safe is good, good reliability and can realize recovering automatically the electric leakage TT&C system and the investigating method thereof of electric power output.
To achieve these goals, technical scheme of the present invention is following:
A kind of electric leakage TT&C system comprises distribution conveyor module, power network line, leakage current detect module, information processing terminal module, operational processes module, and said five part serial communications connect,
Said distribution conveyor module is used to carry distribution voltage, and said distribution voltage is transported to on the electric loading through power network line;
Said leakage current detect module is used for said power network line is carried out real-time leakage current detect, and the signal of telecommunication that monitors is sent to said information processing terminal module;
Said information processing terminal module is used to receive the said signal of telecommunication that monitors, and after will comparing the signal of telecommunication preset in the said signal of telecommunication that monitors and the said information processing terminal module, the output control command;
Said operational processes module is used to receive the control command of said information processing terminal module output, and carries out said control command;
Said control command mainly includes the distribution open command, distribution ends order by order, test voltage open command, test voltage.
Said leakage current detect system also includes a test voltage module, and said test voltage module is used for when carrying distribution voltage, carrying test voltage to said power network line when said distribution conveyor module;
Said test voltage module, power network line, leakage current detect module, information processing terminal module, operational processes sequence of modules are connected in series;
Further, said electric leakage TT&C system also includes data disaply moudle, and said data disaply moudle is connected with the serial communication of said information processing terminal module.
Further, said electric leakage TT&C system also includes remote control module, and said remote control module is connected with the serial communication of said information processing terminal module.
Further, said distribution conveyor module is a low-voltage distribution system, and said low-voltage distribution system adopts three-phase four-wire system or single-phase two-wire system.
Preferably, be provided with current transformer in the said leakage current detect module.
Preferably, be provided with a singlechip chip in the said information processing terminal module.
A kind of electric leakage investigating method is characterized in that, the step of said investigating method is following:
A, distribution conveyor module are transported to distribution voltage with on the electric loading through power network line;
B, leakage tests module are carried out real-time leakage current detect through the current transformer of set inside to power network line, and the signal of telecommunication that is monitored are sent to information processing terminal module;
C, information processing terminal module will receive the said signal of telecommunication that monitors, and the preset signal of telecommunication of itself and set inside is compared, and carry out following two kinds of mode of operations:
c
1, when the signal of telecommunication that monitors is within preset signal of telecommunication scope; Information processing terminal module can judge that said power network line is in normal operating condition; Then information processing terminal module will be sent distribution open command and test voltage successively by ordering on the operational processes module; Said operational processes module will be controlled the test voltage module by carrying test voltage to power network line according to the order that is received when control distribution conveyor module distribution is carried voltage;
c
2, when the signal of telecommunication that monitors departs from preset signal of telecommunication scope; Information processing terminal module can judge that said power network line is in the electric leakage state; Then information processing terminal module will send successively distribution by the order and the test voltage open command on the operational processes module; Said operational processes module is according to the order that is received, and control distribution conveyor module will be controlled the test voltage module and carry test voltage to power network line when carrying distribution voltage.
Beneficial effect: the present invention is through being provided with a test voltage module; When the distribution conveyor module causes because of power network line breaks down when carrying distribution voltage; The test voltage module will be opened automatically and carried test voltage to power network line; In case the circuit that the leakage current detect module is monitored recovers just often, its distribution conveyor module can recover normal power supply voluntarily, solved need in the prior art work about electric power person monitor on the spot leakage circuit again manual operation send the problem of electricity; Practiced thrift manpower and materials in large quantities, and reduced potential safety hazard personnel and property.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process block diagram of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
In conjunction with a kind of electric leakage TT&C system shown in Figure 1; Comprise distribution conveyor module 1, power network line, leakage current detect module 4, information processing terminal module 5, operational processes module 7; These five part serial communications connect; This leakage current detect system also includes a test voltage module 2; Its test voltage module 2 is used for when carrying distribution voltage, carrying test voltage to power network line when distribution conveyor module 1, and this test voltage module 2, power network line, leakage current detect module 4, information processing terminal module 5, operational processes module 7 orders are connected in series.
In the present embodiment; When distribution conveyor module 1 is transported to distribution voltage on the power network line; The current transformer that is provided with in its leakage current detect module 4 carries out real-time leakage current detect to power network line; And the signal of telecommunication that monitors sent to information processing terminal module 5; This information processing terminal module 5 will receive this signal of telecommunication that monitors and the preset signal of telecommunication of itself and set inside will be compared, the relevant control command of output, its control command mainly include distribution open command, distribution by order, test voltage open command, test voltage by ordering.When this signal of telecommunication that monitors is within preset signal of telecommunication scope; Can judge that then power network line does not have leak current fault; Be in normal operating conditions, this information processing terminal module 5 will be sent the distribution open command on operational processes module 7, and its power network line will be in the normal power supply state; When this signal of telecommunication that monitors departs from preset signal of telecommunication scope; Can judge that then leak current fault appears in power network line, this information processing terminal module 5 will be sent distribution by ordering on the operational processes module 7, for reaching earth leakage protective; Power distribution station trips automatic switch; Distribution voltage is by carrying, and information processing terminal module 5 is also sent simultaneously has a test voltage open command on operational processes module 7, and test voltage module 2 is broadcasted a test voltage to its power network line at this moment at once; When the signal of telecommunication that is monitored still departs from preset signal of telecommunication scope; This electrical network circuit is the remain off state of transmitting electricity, and when the signal of telecommunication that is monitored is within preset signal of telecommunication scope, this information processing terminal module 5 will be sent distribution open command and test voltage by ordering on the operational processes module 7; This operational processes module 7 will be controlled its power distribution station automatically and recover electric power output, and by carrying test voltage to power network line.Can realize the automation control that power recovery is exported through the present invention, practice thrift manpower and materials in a large number, and reduced the potential safety hazard of personnel and property.
In the present embodiment; The electric leakage TT&C system also includes data disaply moudle 6; This data disaply moudle 6 is connected with 5 communications of information processing terminal module; Can demonstrate power network line clearly and, make things convenient for work about electric power person to carry out associative operation through data disaply moudle 6 with the operating state on the electric loading 3.
In the present embodiment; The electric leakage TT&C system also includes remote control module 8; Remote control module 8 is connected with 5 serial communications of information processing terminal module; This remote control module 8 can couple together through mobile phone and the information processing terminal module 5 of GPRS wireless tunnel with work about electric power person, realizes Long-distance Control.
In the present embodiment, this distribution conveyor module 1 is a low-voltage distribution system, and low-voltage distribution system mainly adopts three-phase four-wire system or single-phase two-wire system.
In the present embodiment, preferably be provided with current transformer in the leakage current detect module 4.
In the present embodiment; Preferably be provided with a singlechip chip in the information processing terminal module 5; This single-chip microcomputer carries out comparison, the judgement of signal with the signal of telecommunication that monitors and the preset signal of telecommunication that is provided with in it; Export control command at last on operational processes module 7, realized automation of operation control.
The investigating method of electric leakage that comprises above-mentioned TT&C system is following:
A, distribution conveyor module are transported to distribution voltage with on the electric loading through power network line;
B, leakage tests module are carried out real-time leakage current detect through the current transformer of set inside to power network line, and the signal of telecommunication that is monitored are sent to information processing terminal module;
C, information processing terminal module will receive the said signal of telecommunication that monitors, and the preset signal of telecommunication of itself and set inside is compared, and carry out following two kinds of mode of operations:
c
1, when the signal of telecommunication that monitors is within preset signal of telecommunication scope; Information processing terminal module can judge that said power network line is in normal operating condition; Then information processing terminal module will be sent distribution open command and test voltage successively by ordering on the operational processes module; Said operational processes module will be controlled the test voltage module by carrying test voltage to power network line according to the order that is received when control distribution conveyor module distribution is carried voltage;
c
2, when the signal of telecommunication that monitors departs from preset signal of telecommunication scope; Information processing terminal module can judge that said power network line is in the electric leakage state; Then information processing terminal module will send successively distribution by the order and the test voltage open command on the operational processes module; Said operational processes module is according to the order that is received, and control distribution conveyor module will be controlled the test voltage module and carry test voltage to power network line when carrying distribution voltage.
The above is merely preferred embodiment of the present invention, in order to restriction the present invention, all any modifications of in protection scope of the present invention, being done, is not equal to replacement etc., all should be included within protection scope of the present invention.
Claims (7)
- One kind the electric leakage TT&C system; Comprise distribution conveyor module, power network line, leakage current detect module, information processing terminal module, operational processes module; Said five parts adopt serial communication to connect, and it is characterized in that: said leakage current detect system also includes a test voltage moduleSaid test voltage module is used for when carrying distribution voltage, carrying test voltage to said power network line when said distribution conveyor module;Said test voltage module, power network line, leakage current detect module, information processing terminal module, operational processes sequence of modules are connected in series.
- 2. a kind of electric leakage TT&C system according to claim 1 is characterized in that: said electric leakage TT&C system also includes data disaply moudle, and said data disaply moudle is connected with the serial communication of said information processing terminal module.
- 3. a kind of electric leakage TT&C system according to claim 2 is characterized in that: said electric leakage TT&C system also includes remote control module, and said remote control module is connected with the serial communication of said information processing terminal module.
- 4. a kind of electric leakage TT&C system according to claim 1 is characterized in that: said distribution conveyor module is a low-voltage distribution system, and said low-voltage distribution system adopts three-phase four-wire system or single-phase two-wire system.
- 5. a kind of electric leakage TT&C system according to claim 1 is characterized in that: be provided with current transformer in the said leakage current detect module.
- 6. a kind of electric leakage TT&C system according to claim 1 is characterized in that: be provided with a singlechip chip in the said information processing terminal module.
- One kind the electric leakage investigating method, it is characterized in that the step of said investigating method is following:A, distribution conveyor module are transported to distribution voltage with on the electric loading through power network line;B, leakage tests module are carried out real-time leakage current detect through the current transformer of set inside to power network line, and the signal of telecommunication that is monitored are sent to information processing terminal module;C, information processing terminal module will receive the said signal of telecommunication that monitors, and the preset signal of telecommunication of itself and set inside is compared, and carry out following two kinds of mode of operations:c 1, when the signal of telecommunication that monitors is within preset signal of telecommunication scope; Information processing terminal module can judge that said power network line is in normal operating condition; Then information processing terminal module will be sent distribution open command and test voltage successively by ordering on the operational processes module; Said operational processes module will be controlled the test voltage module by carrying test voltage to power network line according to the order that is received when control distribution conveyor module distribution is carried voltage;c 2, when the signal of telecommunication that monitors departs from preset signal of telecommunication scope; Information processing terminal module can judge that said power network line is in the electric leakage state; Then information processing terminal module will send successively distribution by the order and the test voltage open command on the operational processes module; Said operational processes module is according to the order that is received, and control distribution conveyor module will be controlled the test voltage module and carry test voltage to power network line when carrying distribution voltage.
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| CN200983557Y (en) * | 2006-12-04 | 2007-11-28 | 王聪 | DC line frame commutation power supply for mine with current leakage protection function |
| CN101788602A (en) * | 2009-01-23 | 2010-07-28 | 三菱电机株式会社 | Earth leakage tester, earth leakage circuit breaker equipped with the same, circuit breaker, and insulation monitor |
| CN201682264U (en) * | 2010-05-19 | 2010-12-22 | 王士纲 | Leakage protector |
| JP2011200024A (en) * | 2010-03-19 | 2011-10-06 | Kansai Electric Power Co Inc:The | Leakage detector of low voltage power distribution system |
| CN202797864U (en) * | 2012-08-29 | 2013-03-13 | 长沙高升电子电器科技有限公司 | Electricity leakage measurement and control system |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206426U (en) * | 1987-04-13 | 1988-07-13 | 张尚华 | Safety automatic restorer for electricity supply circuit breaker and leak protector |
| CN200965561Y (en) * | 2006-11-09 | 2007-10-24 | 崔双喜 | Power line leakage, broken and short circuit tester |
| CN200983557Y (en) * | 2006-12-04 | 2007-11-28 | 王聪 | DC line frame commutation power supply for mine with current leakage protection function |
| CN101788602A (en) * | 2009-01-23 | 2010-07-28 | 三菱电机株式会社 | Earth leakage tester, earth leakage circuit breaker equipped with the same, circuit breaker, and insulation monitor |
| JP2011200024A (en) * | 2010-03-19 | 2011-10-06 | Kansai Electric Power Co Inc:The | Leakage detector of low voltage power distribution system |
| CN201682264U (en) * | 2010-05-19 | 2010-12-22 | 王士纲 | Leakage protector |
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Effective date of registration: 20181225 Address after: 411101 Taiwanese Industrial Investment Park, Ziyang District, Yiyang City, Hunan Province Patentee after: YIYANG SANMU ELECTRICAL TECHNOLOGY CO., LTD. Address before: 410000 Gaosheng Village 109, Ansha Town, Changsha County, Changsha City, Hunan Province Patentee before: Changsha Gaosheng Electronics Technology Co., Ltd. |