CN105467253A - Method and system for detecting electrical equipment online - Google Patents
Method and system for detecting electrical equipment online Download PDFInfo
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- CN105467253A CN105467253A CN201511020774.1A CN201511020774A CN105467253A CN 105467253 A CN105467253 A CN 105467253A CN 201511020774 A CN201511020774 A CN 201511020774A CN 105467253 A CN105467253 A CN 105467253A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention provides a method and system for detecting electrical equipment online. The method for detecting the electrical equipment online comprises the steps: electrical equipment in an operating status is monitored by temperature measuring equipment, a detection signal is obtained; the detection signal is analyzed, and a present operating temperature of the electrical equipment is obtained; and the electrical equipment is performed a fault detection according to the present operating temperature of the electrical equipment. According to the invention, the electrical equipment in the operating status is monitored by the temperature measuring equipment, the present operating temperature of the electrical equipment is obtained, and the electrical equipment is performed the fault detection according to the present operating temperature of the electrical equipment, periodic maintenance and posterior maintenance convert to predictive maintenance, the fault and accident outage rate of the electrical equipment is greatly reduced, zero fault of the electrical equipment is realized, thus the operation reliability and the economy of the electrical equipment is improved, the maintenance cost is reduced, and the utilization rate of the electrical equipment is improved.
Description
Technical field
The present invention relates to electrical equipment, particularly relate to a kind of online test method and system of electrical equipment.
Background technology
At present, failture evacuation is carried out to the mode of electrical equipment many employings correction maintenance and periodic maintenance.Wherein, correction maintenance is repaiied laggard the robbing of device fails, at this moment electrical equipment well damage, and greatly, cost is higher for maintenance difficulty and workload; Periodic maintenance to be made a plan repairing according to a kind equipment damage law, and this maintenance is poor according to property, and often cause and repair superfluous and repair not enough.
Summary of the invention
The invention provides a kind of online test method and system of electrical equipment, realize the pre-emptive maintenace of electrical equipment, to avoid adopting the electrical equipment well damage that causes of correction maintenance, maintenance difficulty and workload large, the problems such as cost is higher; Or the repairing that periodic maintenance causes more is superfluous and repair not enough problem.Described technical scheme is as follows:
According to the first aspect of the embodiment of the present invention, provide a kind of online test method of electrical equipment, the method comprises: the electrical equipment being in running status by temperature measurement equipment monitoring, obtains the current running temperature of electrical equipment; According to the current running temperature of electrical equipment, fault detect is carried out to electrical equipment.
The technical scheme that embodiments of the invention provide can comprise following beneficial effect: the electrical equipment being in running status by temperature measurement equipment monitoring, obtain the current running temperature of electrical equipment, and according to the current running temperature of electrical equipment, fault detect is carried out to electrical equipment, by periodic maintenance and correction maintenance, change to pre-emptive maintenace, significantly reduce fault and the forced outage rate of electrical equipment, realize electrical equipment " zero failure ", thus improve electric equipment operation reliability, economy, reduce maintenance cost, improve the utilization factor of electrical equipment.
Alternatively, said temperature measuring equipment comprises infrared thermometer and infrared thermography.
Alternatively, the above-mentioned current running temperature according to electrical equipment, carries out fault detect to electrical equipment, comprising: the current running temperature of electrical equipment and the normal operating temperature of electrical equipment are compared, and determines that whether electrical equipment is abnormal; If electrical equipment is abnormal, according to running temperature and the precognition corresponding relation of fault and the current running temperature of electrical equipment, determine the precognition fault of electrical equipment.
Alternatively, above-mentioned the current running temperature of electrical equipment and the normal operating temperature of electrical equipment to be compared, determine that whether electrical equipment is abnormal, comprise: when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is greater than predetermined threshold value, determine that electrical equipment is abnormal; Or, when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is less than or equal to predetermined threshold value, determine that electrical equipment is normal.
According to the second aspect of the embodiment of the present invention, provide a kind of on-line detecting system of electrical equipment, this system comprises: temperature measurement equipment, for monitoring the electrical equipment being in running status, obtains the current running temperature of electrical equipment; Failure detector, for the current running temperature according to electrical equipment, carries out fault detect to electrical equipment.
The technical scheme that embodiments of the invention provide can comprise following beneficial effect: the electrical equipment being in running status by temperature measurement equipment monitoring, obtain the current running temperature of electrical equipment, and according to the current running temperature of electrical equipment, fault detect is carried out to electrical equipment, by periodic maintenance and correction maintenance, change to pre-emptive maintenace, significantly reduce fault and the forced outage rate of electrical equipment, realize electrical equipment " zero failure ", thus improve electric equipment operation reliability, economy, reduce maintenance cost, improve the utilization factor of electrical equipment.
Alternatively, said temperature measuring equipment comprises infrared thermometer and infrared thermography.
Alternatively, above-mentioned failure detector comprises: judge module, for the current running temperature of electrical equipment and the normal operating temperature of electrical equipment being compared, determines that whether electrical equipment is abnormal; Determination module, if abnormal for electrical equipment, according to running temperature and the precognition corresponding relation of fault and the current running temperature of electrical equipment, determines the precognition fault of electrical equipment; Memory module, stores running temperature and the corresponding relation predicting fault for storing above-mentioned failure detector.
Alternatively, above-mentioned judge module specifically for: when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is greater than predetermined threshold value, determine that electrical equipment is abnormal; Or, when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is less than or equal to predetermined threshold value, determine that electrical equipment is normal.
Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the present invention.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of the online test method embodiment one of electrical equipment of the present invention;
Fig. 2 is the structural representation of the on-line detecting system embodiment one of electrical equipment of the present invention;
Fig. 3 is the structural representation of the on-line detecting system embodiment two of electrical equipment of the present invention.
By above-mentioned accompanying drawing, illustrate the embodiment that the present invention is clear and definite more detailed description will be had hereinafter.These accompanying drawings and text description be not in order to limited by any mode the present invention design scope, but by reference to specific embodiment for those skilled in the art illustrate concept of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Term in instructions of the present invention and claims " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
First the several nouns involved by the embodiment of the present invention are made an explanation:
Infrared thermometer: in process of production, in production quality control and monitoring, equipment on-line fault diagnosis and the aspect such as safeguard protection and economize energy have played vital role to infrared temperature-test technology.Compared with contact temperature-measuring method, infrared measurement of temperature has the advantages such as response time fast, noncontact, use safety and long service life.Non-contact infrared thermometer comprises Portable infrared temperature measurement instrument, online infrared thermometer and scanning type infrared temp. measurer.After infrared thermometer converts the power signal of examined object radiation to electric signal by infrared eye, the output signal of imaging device just can the space distribution of the surface temperature of analog scanning examined object completely correspondingly, through electronic system process, reach on display screen, obtain distributing to examined object surface heat corresponding thermography.Use this method, just can realize carrying out the imaging of remote Warm status image and thermometric to examined object and carry out analysis judging.
Infrared thermography: the infrared energy distribution pattern utilizing infrared eye and optical imagery object lens to receive examined object is reflected on the light activated element of infrared eye, thus acquisition Infrared Thermogram, this thermography is corresponding with the heat distribution field on examined object surface.Generally infrared thermography is exactly that the invisible infrared energy sent by object changes visible heat picture into.Different colours above heat picture represents the different temperatures of examined object.
Pre-emptive maintenace: according to equipment Inspection result, depending on the concrete state of equipment, determines most suitable repairing opportunity and more reasonably repair method.Now generally to be defined as: according to the actual state of equipment, by scientific and reasonable arrangement service work, keep safe, economic, the reliable service ability of unit (equipment) with minimum resource consumption, thus improve the serviceable life of equipment, ensure steadily carrying out of production.Pre-emptive maintenace is also referred to as State Maintenance or condition maintenarnce, and it is according to being: equipment (or parts) has different temperature characterisitics under different operating mode.Its rule is found, on-call maintenance time before fault occurs by device Diagnostic means.
Fig. 1 is the process flow diagram of the online test method embodiment one of electrical equipment of the present invention.The present embodiment provides a kind of online test method of electrical equipment, and the method is applicable to the pre-emptive maintenace to electrical equipment.As shown in Figure 1, method comprises the following steps:
S101, be in the electrical equipment of running status by temperature measurement equipment monitoring, obtain the current running temperature of electrical equipment.
Wherein, this temperature measurement equipment is the equipment of the running temperature that can obtain electrical equipment.Such as, temperature measurement equipment can be infrared thermometer and infrared thermography etc.
Electrical equipment comprises charging station, charging station power supply-distribution system, generator, transformer, etc.
S102, current running temperature according to electrical equipment, carry out fault detect to electrical equipment.
Particularly, the current running temperature of electrical equipment and the normal operating temperature of electrical equipment are compared, determine that whether electrical equipment is abnormal; If electrical equipment is abnormal, then according to running temperature and the precognition corresponding relation of fault and the current running temperature of electrical equipment, determine the precognition fault of electrical equipment.
Relative to correction maintenance or periodic maintenance, this embodiment, by the method for science, finds out electrical equipment defect and exception, and scent a hidden danger fault, and take power countermeasure in time, ensures electrical equipment safe and stable operation.Wherein, power countermeasure includes but not limited to parts maintenance, replacing etc., to extend electrical equipment serviceable life.
Wherein, running temperature is determined according to practical experience with the corresponding relation of precognition fault.
In sum; the online test method of the electrical equipment that the present embodiment provides; the electrical equipment of running status is in by temperature measurement equipment monitoring; obtain the current running temperature of electrical equipment; and according to the current running temperature of electrical equipment; fault detect is carried out to electrical equipment; by periodic maintenance and correction maintenance; change to pre-emptive maintenace; significantly reduce fault and the forced outage rate of electrical equipment; realize electrical equipment " zero failure ", thus improve electric equipment operation reliability, economy, reduction maintenance cost, improve the utilization factor of electrical equipment.
On the basis of above-described embodiment, in a kind of implementation, above-mentioned the current running temperature of electrical equipment and the normal operating temperature of electrical equipment to be compared, determine that whether electrical equipment is abnormal, can be specially: when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is greater than predetermined threshold value, determine that electrical equipment is abnormal; Or, when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is less than or equal to predetermined threshold value, determine that electrical equipment is normal.Wherein, predetermined threshold value is determined based on experience value, and the present invention is not limited.Such as, this predetermined threshold value can be zero, that is, the current running temperature of electrical equipment and the normal operating temperature of electrical equipment unequal time, namely determine that electrical equipment is abnormal; In other words, when the current running temperature of electrical equipment is equal with the normal operating temperature of electrical equipment, determine that electrical equipment is normal.
Following is present system embodiment, may be used for performing the inventive method embodiment.For the details do not disclosed in present system embodiment, please refer to the inventive method embodiment.
Fig. 2 is the structural representation of the on-line detecting system embodiment one of electrical equipment of the present invention.The present embodiment provides a kind of on-line detecting system of electrical equipment, and this system is applicable to the pre-emptive maintenace to electrical equipment.As shown in Figure 2, the on-line detecting system 20 of this electrical equipment comprises: temperature measurement equipment 21 and failure detector 22.
Wherein, temperature measurement equipment 21 is in the electrical equipment of running status for monitoring, and obtains the current running temperature of electrical equipment.Failure detector 22, for the current running temperature according to electrical equipment, carries out fault detect to electrical equipment.
The on-line detecting system of the electrical equipment that the present embodiment provides; the electrical equipment of running status is in by temperature measurement equipment monitoring; obtain the current running temperature of electrical equipment; and according to the current running temperature of electrical equipment; fault detect is carried out to electrical equipment; by periodic maintenance and correction maintenance; change to pre-emptive maintenace; significantly reduce fault and the forced outage rate of electrical equipment; realize electrical equipment " zero failure "; thus improve electric equipment operation reliability, economy, reduction maintenance cost, improve the utilization factor of electrical equipment.
Alternatively, temperature measurement equipment 21 can comprise infrared thermometer and infrared thermography etc.
Fig. 3 is the structural representation of the on-line detecting system embodiment two of electrical equipment of the present invention.Structure shown in Fig. 3 is on the basis of structure shown in Fig. 2, and failure detector 22 can comprise: judge module 221, for the current running temperature of electrical equipment and the normal operating temperature of electrical equipment being compared, determines that whether electrical equipment is abnormal; Determination module 222, if abnormal for electrical equipment, according to running temperature and the precognition corresponding relation of fault and the current running temperature of electrical equipment, determines the precognition fault of electrical equipment; Memory module 223, for storing above-mentioned running temperature and the corresponding relation predicting fault.
The on-line detecting system of the electrical equipment that the present embodiment provides, by the current running temperature of electrical equipment and the normal operating temperature of electrical equipment are compared, determine that whether electrical equipment is abnormal, provide a kind of current running temperature according to electrical equipment to determine the determination methods whether this electrical equipment is abnormal thus.
Alternatively, judge module 221 can be specifically for: when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is greater than predetermined threshold value, determine that electrical equipment is abnormal; Or, when the difference of the current running temperature of electrical equipment and the normal operating temperature of electrical equipment is less than or equal to predetermined threshold value, determine that electrical equipment is normal, etc.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1. an online test method for electrical equipment, is characterized in that, comprising:
Be in the electrical equipment of running status by temperature measurement equipment monitoring, obtain the current running temperature of described electrical equipment;
According to the current running temperature of described electrical equipment, fault detect is carried out to described electrical equipment.
2. method according to claim 1, is characterized in that, described temperature measurement equipment comprises infrared thermometer and infrared thermography.
3. method according to claim 1 and 2, is characterized in that, the described current running temperature according to described electrical equipment, carries out fault detect, comprising described electrical equipment:
The current running temperature of described electrical equipment and the normal operating temperature of described electrical equipment are compared, determines that whether described electrical equipment is abnormal;
If described electrical equipment is abnormal, according to running temperature and the precognition corresponding relation of fault and the current running temperature of described electrical equipment, determine the precognition fault of described electrical equipment.
4. method according to claim 3, is characterized in that, describedly the current running temperature of described electrical equipment and the normal operating temperature of described electrical equipment is compared, and determines that whether described electrical equipment is abnormal, comprising:
When the difference of the current running temperature of described electrical equipment and the normal operating temperature of described electrical equipment is greater than predetermined threshold value, determine that described electrical equipment is abnormal;
Or, when the difference of the current running temperature of described electrical equipment and the normal operating temperature of described electrical equipment is less than or equal to described predetermined threshold value, determine that described electrical equipment is normal.
5. an on-line detecting system for electrical equipment, is characterized in that, comprising:
Temperature measurement equipment, for monitoring the electrical equipment being in running status, obtains the current running temperature of described electrical equipment;
Failure detector, for the current running temperature according to described electrical equipment, carries out fault detect to described electrical equipment.
6. system according to claim 5, is characterized in that, described temperature measurement equipment comprises infrared thermometer and infrared thermography.
7. the system according to claim 5 or 6, is characterized in that, described failure detector comprises:
Judge module, for the current running temperature of described electrical equipment and the normal operating temperature of described electrical equipment being compared, determines that whether described electrical equipment is abnormal;
Determination module, if abnormal for described electrical equipment, according to running temperature and the precognition corresponding relation of fault and the current running temperature of described electrical equipment, determines the precognition fault of described electrical equipment;
Memory module, for storing described running temperature and the corresponding relation predicting fault.
8. system according to claim 7, is characterized in that, described judge module specifically for:
When the difference of the current running temperature of described electrical equipment and the normal operating temperature of described electrical equipment is greater than predetermined threshold value, determine that described electrical equipment is abnormal;
Or, when the difference of the current running temperature of described electrical equipment and the normal operating temperature of described electrical equipment is less than or equal to described predetermined threshold value, determine that described electrical equipment is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511020774.1A CN105467253A (en) | 2015-12-30 | 2015-12-30 | Method and system for detecting electrical equipment online |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511020774.1A CN105467253A (en) | 2015-12-30 | 2015-12-30 | Method and system for detecting electrical equipment online |
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| CN105467253A true CN105467253A (en) | 2016-04-06 |
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| CN201511020774.1A Pending CN105467253A (en) | 2015-12-30 | 2015-12-30 | Method and system for detecting electrical equipment online |
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2015
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Patent Citations (7)
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| CN200944064Y (en) * | 2006-06-07 | 2007-09-05 | 广东中玉科技有限公司 | Infrared digital remote-view fault detecting system |
| CN101477158A (en) * | 2009-02-12 | 2009-07-08 | 江苏省电力公司宿迁供电公司 | Recognition device and method for abnormal heating defect rank of electric power apparatus |
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Application publication date: 20160406 |
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