CN102169769B - Conductive contact surface performance online diagnosing and repairing system and using method thereof - Google Patents
Conductive contact surface performance online diagnosing and repairing system and using method thereof Download PDFInfo
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- CN102169769B CN102169769B CN201110027888.4A CN201110027888A CN102169769B CN 102169769 B CN102169769 B CN 102169769B CN 201110027888 A CN201110027888 A CN 201110027888A CN 102169769 B CN102169769 B CN 102169769B
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Abstract
The invention discloses a conductive contact surface performance online diagnosing and repairing system and a using method thereof. The system comprises an impedance detecting part and an electric grinding part, wherein the impedance detecting part and the electric grinding part are connected in parallel to a relay contact to be detected, connecting ends are respectively connected with an external circuit through an isolation switch, and two ends of the impedance detecting part are respectively connected with a relay coil to be detected so as to control the relay contact to be closed and detect the relay coil to be electrified. Compared with the prior art, the invention has the advantages of realizing the online detecting and the online grinding of a conductive contact surface, eliminating overhaul and decomposition maintenance of equipment parts, greatly increasing repairing efficiency and reliability, reducing coefficient of losses and cost expenses, and being simple and compact in integral structure and convenient and easy to operate.
Description
Technical field
The present invention relates to a kind of inline diagnosis repair system and using method thereof, belong to Electric automation technology field, refer in particular to conductive contact surface performance inline diagnosis repair system and the using method thereof of the contacts such as a kind of electric switch, relay and electrical connector.
Background technology
In electric automatization field, various switching regulator element is widely used, and the reliability of the Key Circuit of many online uninterrupted operations is played to material impact.At present, for the key loop of this type, mainly take to make regular check on the preventive maintenance measure of maintenance, but effect is not remarkable, and need to frequently carries out the shutdown of long period and open and inspect, reduced the availability of equipment.
In use, the inefficacy of switch element contact face and connector or hydraulic performance decline are often oxidation, the carbon distributions and stained due to conductive contact surfaces.In prior art, traditional restorative procedure is to decompose after switch element is disassembled, and takes out the contact pin of contact or connector, and conductive contact surfaces is carried out to artificial mechanism polishing, for the hermetic switchgear of part, can only scrap replacing.This traditional polishing process need to decompose and assemble switch element, complicated operation, and labor intensive, and the fit clearance after assembling is again difficult to guarantee to return to original optimum state; On the other hand, polishing also has extra loss to contact copper face, and contact is only done once and just need to be scrapped to the polishing reparation of twice conventionally; Meanwhile, contact polishing is also higher to operating personnel's specification requirement.
Summary of the invention
The object of the invention is to overcome in prior art shortcoming with not enough, provide a kind of simple and compact for structure, easy to operate easily, without dismounting resolution element, successful, efficiency is high and cost is low conductive contact surface performance inline diagnosis repair system.
Another object of the present invention is to provide the using method of above-mentioned conductive contact surface performance inline diagnosis repair system.
In order to realize first object, the present invention realizes by following technical scheme:
A kind of conductive contact surface performance inline diagnosis repair system, include impedance detection parts and electric grinding component, described impedance detection parts and electric grinding component are connected to be examined on relay contact, and connect end and by isolating switch, be connected with outside line respectively, and described impedance detection parts two ends respectively with examined relay coil and be connected and with control relay contact, open and close and detect relay coil and obtain electric situation.
Further, described isolating switch includes the first isolating switch and the second isolating switch, and the two is controlled and opened and closed by electric grinding component.
Further, described impedance detection parts are provided with and are used to indicate the alarm lamp of being examined contact malfunction.
In order to realize second object, the present invention realizes by following technical scheme:
A using method for conductive contact surface performance inline diagnosis repair system, it comprises the following steps: a, electric grinding component are examined relay, proves that circuit is in without electric idle condition, and then controls isolating switch and disconnect; B, impedance detection component controls are examined relay contact closure and are detected contact resistance; If c contact resistance is greater than threshold values, electric grinding component applies grinding high-voltage pulse by triggering conductive contact surfaces is ground.
Further, also comprise d step, after a milling cycle finishes, whether impedance detection parts detect contact resistance lower than threshold values, are to finish to grind, otherwise again apply grinding high-voltage pulse, if pass through continuously five milling cycle contact resistances still higher than threshold values, the circular fault of reporting to the police unrepairable.
Further, in described d step, between milling cycle, the time interval is less than 30 seconds.
Further, in described c step, first apply alternating-current pulse electric current being examined on relay contact, this electric current forms voltage drop on resistance, and the equivalent capacity two ends that form in dirt and local air gap form charging voltage; When described charging voltage is greater than the equivalent capacity of stained, puncture the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage, stained and oxide layer are punctured formation spark discharge by electric current, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
Further, the current value of described alternating-current pulse electric current can not be over 3 times of contact rated current capacity.
Further, the pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms.
Further, the number of times that always applies of described alternating-current pulse electric current is 3 times, applies the on-off action that coordinates one-time contact between alternating-current pulse electric current at every turn.
Compared with prior art, its beneficial effect is in the present invention:
1, realize the online detection of conductive contact surfaces and polishing online, exempted the opening and inspecting and decompose maintenance of equipment part, greatly improved remediation efficiency and reliability, lowered coefficient of losses and cost payout;
2, overall structure is simply compact, easy to operate easy.
In order to understand more clearly the present invention, below with reference to accompanying drawing explanation, set forth the specific embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is that the present invention is circuit structure block diagram.
Embodiment
As shown in Figure 1, conductive contact surface performance inline diagnosis repair system of the present invention, include impedance detection parts and electric grinding component, described impedance detection parts and electric grinding component are connected to be examined on relay contact, and connect end and by isolating switch, be connected with outside line respectively, and described impedance detection parts two ends respectively with examined relay coil and be connected and with control relay contact, open and close and detect relay coil and obtain electric situation.Further, described isolating switch includes the first isolating switch K1 and the second isolating switch K2, and the two is controlled and opened and closed by electric grinding component.Preferably, described impedance detection parts are provided with and are used to indicate the alarm lamp T that is examined contact malfunction.
The using method of above-mentioned conductive contact surface performance inline diagnosis repair system comprises the following steps: a, electric grinding component are examined relay, proves that circuit is in without electric idle condition, and then controls isolating switch and disconnect; B, impedance detection component controls are examined relay contact closure and are detected contact resistance; If c contact resistance is greater than threshold values, electric grinding component applies grinding high-voltage pulse by triggering conductive contact surfaces is ground; After d, a milling cycle finish, whether impedance detection parts detect contact resistance lower than threshold values, to finish to grind, otherwise again apply grinding high-voltage pulse, if continuously by five milling cycles (between milling cycle, the time interval is less than 30 seconds) contact resistance still higher than threshold values, the circular fault of reporting to the police unrepairable.
In above-mentioned c step, first apply alternating-current pulse electric current being examined on relay contact, this electric current forms voltage drop on resistance, and the equivalent capacity two ends that form in dirt and local air gap form charging voltage; When described charging voltage is greater than the equivalent capacity of stained, puncture the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage, stained and oxide layer are punctured formation spark discharge by electric current, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
Further, the current value of described alternating-current pulse electric current can not be over 3 times of contact rated current capacity; The pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms; The number of times that always applies of described alternating-current pulse electric current is 3 times, applies the on-off action that coordinates one-time contact between alternating-current pulse electric current at every turn.
The present invention is not limited to above-mentioned execution mode, if various changes of the present invention or modification are not departed to the spirit and scope of the present invention, if within these changes and modification belong to claim of the present invention and equivalent technologies scope, the present invention is also intended to comprise these changes and modification.
Claims (8)
1. a conductive contact surface performance inline diagnosis repair system, include impedance detection parts and electric grinding component, it is characterized in that: described impedance detection parts and electric grinding component are connected to be examined on relay contact, and connect end and by isolating switch, be connected with outside line respectively, isolating switch includes the first isolating switch and the second isolating switch, the two is controlled and is opened and closed by electric grinding component, and described impedance detection parts two ends respectively with examined relay coil and be connected with control relay contact and open and close and detection relay coil obtains electric situation.
2. conductive contact surface performance inline diagnosis repair system according to claim 1, is characterized in that: described impedance detection parts are provided with and are used to indicate the alarm lamp of being examined contact malfunction.
3. the using method of conductive contact surface performance inline diagnosis repair system as claimed in claim 1, is characterized in that comprising the following steps:
A, electric grinding component are examined relay, prove that circuit is in without electric idle condition, and then control isolating switch and disconnect;
B, impedance detection component controls are examined relay contact closure and are detected contact resistance;
If c contact resistance is greater than threshold values, electric grinding component applies grinding high-voltage pulse by triggering conductive contact surfaces is ground;
After d, a milling cycle finish, whether impedance detection parts detect contact resistance lower than threshold values, are to finish to grind, otherwise again apply grinding high-voltage pulse, if pass through continuously five milling cycle contact resistances still higher than threshold values, the circular fault of reporting to the police unrepairable.
4. the using method of conductive contact surface performance inline diagnosis repair system according to claim 3, is characterized in that: in described d step, between milling cycle, the time interval is less than 30 seconds.
5. the using method of conductive contact surface performance inline diagnosis repair system according to claim 3, it is characterized in that: in described c step, first on relay contact, apply alternating-current pulse electric current being examined, this electric current forms voltage drop on resistance, at the equivalent capacity two ends of dirt and the formation of local air gap, forms charging voltage; When described charging voltage is greater than the equivalent capacity of stained, puncture the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage, stained and oxide layer are punctured formation spark discharge by electric current, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
6. the using method of conductive contact surface performance inline diagnosis repair system according to claim 5, is characterized in that: the current value of described alternating-current pulse electric current can not surpass 3 times of contact rated current capacity.
7. the using method of conductive contact surface performance inline diagnosis repair system according to claim 6, is characterized in that: the pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms.
8. the using method of conductive contact surface performance inline diagnosis repair system according to claim 7, is characterized in that: the number of times that always applies of described alternating-current pulse electric current is 3 times, applies the on-off action that coordinates one-time contact between alternating-current pulse electric current at every turn.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110027888.4A CN102169769B (en) | 2011-01-26 | 2011-01-26 | Conductive contact surface performance online diagnosing and repairing system and using method thereof |
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| CN201110027888.4A CN102169769B (en) | 2011-01-26 | 2011-01-26 | Conductive contact surface performance online diagnosing and repairing system and using method thereof |
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| CN102169769A CN102169769A (en) | 2011-08-31 |
| CN102169769B true CN102169769B (en) | 2014-02-12 |
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| DE102014016826A1 (en) * | 2014-11-13 | 2016-05-19 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Method for operating an electromotive adjusting device and electromotive adjusting device |
| CN106300232B (en) * | 2016-09-30 | 2018-07-31 | 西电通用电气自动化有限公司 | It is a kind of to prevent relay from bouncing and accelerate the circuit being attracted and method |
| CN107564738A (en) * | 2017-10-26 | 2018-01-09 | 国网江苏省电力公司南通供电公司 | A kind of New Type Isolating Switch dynamic/static contact repair method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069637U (en) * | 1990-05-11 | 1991-01-16 | 中国工商银行青岛市分行 | Oxidized resistance auto-removing device for data communication line |
| CN2242520Y (en) * | 1995-07-21 | 1996-12-11 | 冯胜林 | Device for repairing electron tube |
| JP2004358516A (en) * | 2003-06-04 | 2004-12-24 | Murata Mfg Co Ltd | Resistance welding method, method for cleaning resistance welding electrode, and resistance welding apparatus |
| CN101870079A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Alternating-current electric grinding method for conductive contact surfaces |
-
2011
- 2011-01-26 CN CN201110027888.4A patent/CN102169769B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069637U (en) * | 1990-05-11 | 1991-01-16 | 中国工商银行青岛市分行 | Oxidized resistance auto-removing device for data communication line |
| CN2242520Y (en) * | 1995-07-21 | 1996-12-11 | 冯胜林 | Device for repairing electron tube |
| JP2004358516A (en) * | 2003-06-04 | 2004-12-24 | Murata Mfg Co Ltd | Resistance welding method, method for cleaning resistance welding electrode, and resistance welding apparatus |
| CN101870079A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Alternating-current electric grinding method for conductive contact surfaces |
Non-Patent Citations (1)
| Title |
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| JP特开2004358516A 2004.12.24 |
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