CN104614018A - On-line integrated monitoring method and system for transformer - Google Patents
On-line integrated monitoring method and system for transformer Download PDFInfo
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- CN104614018A CN104614018A CN201510032877.3A CN201510032877A CN104614018A CN 104614018 A CN104614018 A CN 104614018A CN 201510032877 A CN201510032877 A CN 201510032877A CN 104614018 A CN104614018 A CN 104614018A
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Abstract
The invention discloses an on-line integrated monitoring method and an on-line integrated monitoring system for transformer. The method comprises the following steps: obtaining the monitoring value of each characteristic parameter from a plurality of on-line monitoring devices used for monitoring the characteristic parameter of the transformer; judging whether each monitoring value meets the corresponding characteristic condition, if the monitoring value meets the corresponding fault condition, judging that the characteristic parameter corresponding to the monitoring value has fault, executing the fault code displaying step, otherwise, judging that the characteristic parameter corresponding to the monitoring value is normal, executing the monitoring value obtaining step; executing the fault code displaying step, which includes: confirming the fault region having the monitoring value, which does not meet the corresponding characteristic condition, the fault region has correlation with the characteristic parameter, combining the fault regions into the fault combination, inquiring the fault code corresponding to the fault combination, displaying the fault code and displaying the measures and suggestions related to the fault code. The on-line integrated monitoring method and on-line integrated monitoring device synthetically analyze and confirm the concrete fault for finding the fault hidden danger as soon as possible for avoiding the fault or preventing the further development of the fault.
Description
Technical field
The present invention relates to power transformer correlative technology field, particularly the online integrated monitoring of a kind of transformer and system.
Background technology
Online single monitoring device is used for monitoring the transformer of electric system, with the various characteristic parameters of Real-Time Monitoring transformer, judges whether to break down according to the situation of characteristic parameter.
But existing online single monitoring device judges for the monitor value of single characteristic parameter.But, so easily mistake is occurred to the monitoring of single characteristic parameter, such as when parts one break down, when it can cause the monitor value of corresponding A characteristic parameter to increase, the online single monitoring device of A characteristic parameter judges to break down, meanwhile, probably also can along with significantly increasing to the monitor value of the B characteristic parameter that parts two are monitored, thus the online single monitoring device of B characteristic parameter also judges to break down.Existing online single monitoring device, owing to being judge according to the monitor value of single characteristic parameter, therefore it can not determine the reason that breaks down really.What is more, in some cases, if it is normal condition that the monitor value of the A characteristic parameter monitor value increased along with B characteristic parameter increases, not breaks down.Therefore, existing online single monitoring device easily causes fault misdescription.
Summary of the invention
Based on this, be necessary easily to cause wrong report for the transformer online monitoring of prior art and cannot the technical matters of accurate localizing faults reason, the online integrated monitoring of a kind of transformer and system are provided.
The online integrated monitoring of a kind of transformer, comprising:
Monitor value obtaining step, comprising: the monitor value obtaining each described characteristic parameter from multiple online single monitoring device of monitoring the characteristic parameter of described transformer;
Breakdown judge step, comprise: judge whether each described monitor value meets corresponding characteristic condition, if monitor value meets corresponding fault condition, then judge that the characteristic parameter corresponding to described monitor value breaks down, perform failure code step display, otherwise judge that the characteristic parameter corresponding to described monitor value is normal, perform monitor value obtaining step;
Failure code step display, comprise: the fault section determining not meet the monitor value place of individual features condition, described fault section associates with characteristic parameter, by the combination of all described fault section composition faults, inquire about the failure code corresponding to the combination of described fault, show described failure code and the suggested measures relevant to described failure code.
A kind of transformer, at the main monitoring device of line generalization, comprising:
Monitor value acquisition module, for: the monitor value obtaining each described characteristic parameter from multiple online single monitoring device that the characteristic parameter of described transformer is monitored;
Breakdown judge module, for: judge whether each described monitor value meets corresponding characteristic condition, if monitor value meets corresponding fault condition, then judge that the characteristic parameter corresponding to described monitor value breaks down, perform failure code display module, otherwise judge that the characteristic parameter corresponding to described monitor value is normal, perform monitor value acquisition module;
Failure code display module, for: the fault section determining the monitor value place not meeting individual features condition, described fault section associates with characteristic parameter, by the combination of all described fault section composition faults, inquire about the failure code corresponding to the combination of described fault, show described failure code and the suggested measures relevant to described failure code.
The present invention is by judging the monitor value of multiple characteristic parameter, and its concrete fault of comprehensive analysis confirmation, decreases wrong report and accurately can locate fault.
Accompanying drawing explanation
Fig. 1 is the workflow diagram of the online integrated monitoring of a kind of transformer of the present invention;
Fig. 2 is the system construction drawing of preferred embodiment;
Fig. 3 be in preferred embodiment transformer at the workflow diagram of the main monitoring device of line generalization;
Fig. 4 is the construction module figure of a kind of transformer of the present invention at the main monitoring device of line generalization;
Figure 5 shows that the system architecture schematic diagram of another most preferred embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Be illustrated in figure 1 the workflow diagram of the online integrated monitoring of a kind of transformer of the present invention, comprise:
Step S101, comprising: the monitor value obtaining each described characteristic parameter from multiple online single monitoring device of monitoring the characteristic parameter of described transformer;
Step S102, comprise: judge whether each described monitor value meets corresponding characteristic condition, if monitor value meets corresponding fault condition, then judge that the characteristic parameter corresponding to described monitor value breaks down, perform step S103, otherwise judge that the characteristic parameter corresponding to described monitor value is normal, perform step S101;
Step S103, comprise: the fault section determining not meet the monitor value place of individual features condition, described fault section associates with characteristic parameter, by the combination of all described fault section composition faults, inquire about the failure code corresponding to the combination of described fault, show described failure code and the suggested measures relevant to described failure code.
The present invention obtains the monitor value of multiple characteristic parameter in step S101, then judges whether to break down to each monitor value in step s 102, if there is fault, is then further analyzed in step s 103.Step S103 first determines the fault section at the monitor value place not meeting individual features condition, wherein fault section associates with each characteristic parameter, fault section refers to the default numerical intervals associated with each characteristic parameter, has different fault sections for different characteristic parameters.Then, all fault sections are combined into fault combination, and inquire about failure code corresponding to this fault combination, preferably, by a default form, the different failure codes corresponding to fault combination can be recorded, such as be in A ' fault section for A characteristic parameter, and B characteristic parameter is in B ' fault section, then A ' fault section and B ' fault section form a fault combination, and the failure code that association one is corresponding in advance.
Due to the present invention's employing is that one or more fault section is combined into fault combination, and obtains corresponding failure code according to fault combination.Therefore, the present invention carries out comprehensive descision to all monitor values not meeting individual features condition, thus determines corresponding failure code, thus decreases wrong report and accurately can locate fault.
Wherein in an embodiment, described characteristic parameter comprises the gas concentration of oil dissolved gas, and the rate of growth of oil dissolved gas, described fault condition is: the monitor value of the gas concentration of oil dissolved gas exceedes preset concentration threshold value, and the monitor value of the rate of growth of oil dissolved gas exceedes default rate of growth threshold value.
Gas concentration increases can as of a fault Rule of judgment, but, gas concentration increases except because failure cause, also may be longlyer to cause because enter time of the dissolved gas in oil, such as: in high load capacity situation, there will be the situation that some temporary transient specific gas concentrations increase, if be in, underload is then fault, but can regard as normal in high load capacity situation.Therefore, only easily there is wrong report with the Rule of judgment that gas concentration increases as fault.The present embodiment carries out dual comparison to gas concentration and rate of growth, and relative to only comparison gas concentration or only comparative rate of growth, accurate rate is higher, decreases rate of false alarm.
Preferably, described oil dissolved gas is multiple gases, and described online integrated monitoring also comprises:
When the monitor value of the gas concentration of oil dissolved gas, and the monitor value of the rate of growth of oil dissolved gas is when meeting corresponding fault condition: calculate oil dissolved gas concentration proportion group, described oil dissolved gas concentration proportion group is combined by multiple oil dissolved gas concentration proportion, and described oil dissolved gas concentration is the ratio of the monitor value of a kind of monitor value of gas concentration of oil dissolved gas and the gas concentration of another oil dissolved gas; The rate of growth calculating the monitor value place of the rate of growth of described oil dissolved gas is interval, obtains the interval corresponding fault degree of described rate of growth; Corresponding trouble location is determined in combination according to described oil dissolved gas concentration proportion group and fault degree;
Described fault combination also comprises oil dissolved gas concentration proportion group, fault degree and/or trouble location.
The determination of trouble location, a form can be generated in advance, record different oil dissolved gas concentration proportion groups to associate with the trouble location that may occur with the combination of fault degree, then after getting oil dissolved gas concentration proportion group and fault degree, search corresponding trouble location according to both combinations.
By can roughly failure judgement position to oil dissolved gas concentration proportion group, but oil dissolved gas concentration proportion group be relevant with oil dissolved gas concentration, and oil dissolved gas concentration accumulates because of the time possibly thus cause erroneous judgement.The present embodiment adopts volumetric gas concentration proportion group and fault degree combination in oil to determine trouble location, thus reduces rate of false alarm, improves the judgment accuracy of trouble location.
Wherein in an embodiment:
Described characteristic parameter comprises: the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, from the winding temperature that the online single monitoring device of winding temperature obtains, and/or from the load current value that the online single monitoring device of load current obtains,
Described fault condition is that the monitor value of described characteristic parameter exceedes the default fault threshold associated with described characteristic parameter.
Preferably:
When the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, or exceed corresponding fault threshold from the winding temperature that the online single monitoring device of winding temperature obtains, then carry out early warning and alarm operation,
When the load current value obtained from the online single monitoring device of load current exceedes corresponding threshold value, carry out overload calculating, obtain overload current value, obtain and show capability of overload assessment corresponding to described overload current value.
Wherein in an embodiment:
Described characteristic parameter comprises: the switch on and off judgment value obtained from the online single monitoring device of switch and/or switch run judgment value and/or the cooling system break-make judgment value that obtains from the online single monitoring device of cooling system and/or cooling system run judgment value;
Described fault condition be described switch on and off judgment value for abnormal, described switch run judgment value for abnormal, cooling system break-make judgment value is abnormal or described cooling system runs judgment value for abnormal.
Wherein, when gauge tap break-make, can send to switch and open or ON-and OFF-command, now whether the online single monitoring device monitoring switch of switch is correctly opened or disconnects, the switch on and off judgment value exported represents whether switch is correctly opened or disconnect, when switch is not correctly opened or is disconnected, then switch on and off judgment value output abnormality.When switch runs, whether the online single monitoring device monitoring switch of switch runs and puts in place, and the switch exported runs judgment value and represents switch whether true(-)running, and when switch does not have switch to put in place, then switch runs judgment value output abnormality.When Controlled cooling system break-make, can send to cooling system and open or ON-and OFF-command, now whether the online single monitoring device monitoring cooling system of cooling system is correctly opened or disconnects, the cooling system break-make judgment value exported represents whether cooling system is correctly opened or disconnect, when cooling system is not correctly opened or is disconnected, then cooling system break-make judgment value output abnormality.When cooling system runs, whether the online single monitoring device monitoring cooling system of cooling system normally runs, the cooling system that exported runs judgment value and represents cooling system whether true(-)running, and when cooling system does not have true(-)running, then cooling system runs judgment value output abnormality.Judge cooling system whether true(-)running, can be judged by the state obtaining fan blower fan.Therefore, preferably, the online single monitoring device of cooling system can be the online single monitoring device of numeral input fan fan condition.
The operating function of usual switch has: upshift, downshift, stops to appointment shelves etc.;
Have the operation monitoring of switch: cycle imperfect warning, switch temperature height warning etc. requires function;
The operating function of usual cooling system has: open fan operation, closes fan operation, grouping work etc.;
Have the operation monitoring of cooling system: blower fan overcurrent tripping is reported to the police, oil flow relay action is reported to the police, and refrigeratory full cut-off is reported to the police etc.;
Be illustrated in figure 2 the system construction drawing of preferred embodiment, comprise:
Transformer is at the main monitoring device 21 of line generalization, and the multiple online single monitoring device to be connected at the main monitoring device of line generalization 21 with transformer, various online single monitoring device comprises: electronic type Maintenance-free respirator 221, electronic oil level meter 222, electron pressure relief valve 223, electronic gas relay 224, electronics oil temperature ga(u)ge/electronics winding temperature gage 225, iron core grounding current sensor 226, non-electricity protecting device 231, merge cells 232, the online single monitoring device 233 of oil dissolved gas, the online single monitoring device 234 of shelf depreciation, the online single monitoring device 235 of casing monitoring, the online single monitoring device 236 of winding temperature, the online single monitoring device 237 of loaded switch and the online single monitoring device 238 of cooling system.Transformer, after the various characteristic parameters that coupled online single monitoring device obtains comprehensively are analyzed by the main monitoring device of line generalization 21, reports station level 24.
Above-mentioned electronic type Maintenance-free respirator 221, electronic oil level meter 222, electron pressure relief valve 223, electronic gas relay 224, electronics oil temperature ga(u)ge/electronics winding temperature gage 225 also can adopt corresponding non-electrical minor equipment to carry out data acquisition.
Be illustrated in figure 3 transformer in preferred embodiment, at the workflow diagram of the main monitoring device 21 of line generalization, to comprise:
Step S301, carries out research and application to the oil dissolved gas obtained from the online single monitoring device of oil dissolved gas, if do not have fault to continue to perform step S301, otherwise performs step S310 when breaking down;
Step S302, to the iron core grounding current monitoring obtained from iron core grounding current sensor, if be less than preset value, continues to perform step S302 monitoring, otherwise early warning and execution step S310 after reporting to the police;
Step S303, monitors the sensor comprising oil temperature, oil level, oil pressure, gas flow etc., if be less than preset value, continues to perform step S303 monitoring, otherwise early warning and execution step S310 after reporting to the police;
Step S304, monitors the partial discharge monitoring value obtained from the online single monitoring device of shelf depreciation, if be less than preset value, continue to perform step S304 monitoring, otherwise performs step S310 after early warning and warning;
Step S305, monitors the casing monitoring value obtained from the online single monitoring device of casing monitoring, if be less than preset value, continue to perform step S305 monitoring, otherwise performs step S310 after early warning and warning;
Step S306, monitors the winding temperature obtained from the online single monitoring device of winding temperature, if be less than preset value, continue to perform step S306 monitoring, otherwise performs step S310 after early warning and warning;
Step S307, monitors the load current obtained from the online single monitoring device of load current, if be less than preset value, continues to perform step S306 monitoring, otherwise carries out performing step S310 after overload calculates;
Step S308, runs judgment value to the switch on and off judgment value obtained from the online single monitoring device of loaded switch and switch and monitors, and then continues to perform step S308 monitoring, otherwise perform step S310 if normal;
Step S309, the online single monitoring device of cooling system carries out monitoring to fan fan condition and obtains but system switching judgment value and cooling system operation judgment value, run judgment value to cooling system break-make judgment value and cooling system to monitor, then continue to perform step S309 monitoring if normal, otherwise perform step S310, cooling system is mainly to the monitoring of fan fan condition, therefore cooling system break-make judgment value and cooling system operation judgment value can be the monitorings to fan fan condition, also can be direct as shown in Figure 5 whole cooling system to be monitored,
Step S310, step S301 ~ step S309 is broken down or early warning and alarming time monitor value determine affiliated fault section, fault section is combined into fault combination, the failure code that the combination of search fault is corresponding, webpage shows failure code and relevant follow-up suggestion.
Wherein step S301 ~ step S309 is all independent executed in parallel, and each preset value is all corresponding separately with each characteristic parameter, and this value can be set by the user or adopt default value.
The concrete steps of step S301 are as follows, comprising:
Step S311, the regularly monitor value of sampling judgement twice continuous print test period gas concentration and the monitor value of rate of growth;
Step S312, if the monitor value of gas concentration exceedes preset concentration threshold value, then performs step S313, otherwise performs step S311 continuation sampling;
Step S313, if the monitor value of rate of growth exceedes default rate of growth threshold value, is then judged to be fault, performs step S314, otherwise performs step S311 continuation sampling;
Step S314, oil dissolved gas concentration proportion group between tracing trouble type determination gas with various, oil dissolved gas concentration proportion group is the ratio of the monitor value of a kind of monitor value of gas concentration of oil dissolved gas and the gas concentration of another oil dissolved gas, the rate of growth calculating the monitor value place of the rate of growth of oil dissolved gas is interval, obtain the interval corresponding fault degree of described rate of growth, corresponding trouble location is determined in combination according to described oil dissolved gas concentration proportion group and fault degree, performs step S310.
Be illustrated in figure 5 the system architecture schematic diagram of another most preferred embodiment of the present invention, comprise: transformer is at the main monitoring device 21 of line generalization, and the multiple online single monitoring device to be connected at the main monitoring device of line generalization 21 with transformer, various online single monitoring device comprises: electronic oil level meter 222, electron pressure relief valve 223, electronics oil temperature ga(u)ge/electronics winding temperature gage 225, electronic gas relay 224, iron core grounding current sensor 226, merge cells 232, the online single monitoring device 233 of oil dissolved gas, the online single monitoring device 234 of shelf depreciation, the online single monitoring device 235 of casing monitoring, the online single monitoring device 237 of loaded switch, the online single monitoring device 238 of cooling system, .Transformer, after the various characteristic parameters that coupled online single monitoring device obtains comprehensively are analyzed by the main monitoring device of line generalization 21, reports station level 24.
Electronic oil level meter 222, electron pressure relief valve 223, electronics oil temperature ga(u)ge/electronics winding temperature gage 225 are monitored oil level, oil pressure, top-oil temperature and bottom oil temperature respectively, and transmission of monitoring value to transformer at the main monitoring device 21 of line generalization.Also the equipment of non-electrical minor can be adopted to monitor in this position, such as: oil level indicator, oil pressure relief valve, top-oil temperature thermometer, bottom oil temperature thermometer;
Electronic gas relay 224 is installed on the transformer, obtains gas buildup amount monitor value and is transferred to transformer at the main monitoring device 21 of line generalization;
Iron core grounding current sensor 226 is connected with the iron core 201 of transformer 20 inside, obtains iron core grounding electric current and is transferred to transformer at the main monitoring device 21 of line generalization;
Merge cells 232 is connected with the current transformer 2321 be enclosed within bushing shell for transformer 202, obtains casing current and is transferred to transformer at the main monitoring device 21 of line generalization;
The online single monitoring device 233 of oil dissolved gas is connected with the connecting leg 203 on transformer, obtains the concentration of oil dissolved gas and rate of growth and is transferred to transformer at the main monitoring device 21 of line generalization;
The online single monitoring device 234 of shelf depreciation is connected with the multiple connecting legs 203 on transformer, obtains partial discharge monitoring value and is transferred to transformer at the main monitoring device 21 of line generalization;
The online single monitoring device 235 of casing monitoring is connected with bushing shell for transformer 202, obtains casing monitoring value and is transferred to transformer at the main monitoring device 21 of line generalization;
The online single monitoring device 237 of loaded switch is connected with transformer switch 204, and monitoring switch state or do exercises to switch controls, and obtains switch on and off judgment value and switch runs judgment value, and is transferred to transformer at the main monitoring device 21 of line generalization.In a further embodiment, it is inner that the online single monitoring device of loaded switch also can be arranged on transformer switch 204, as the functional module of transformer switch 204.
The online single monitoring device 238 of cooling system is connected with the multiple connecting legs 203 on transformer, obtain the parameter value such as oil temperature, air quantity, monitor cooling system on off operating mode or operation is done to cooling system and control, obtain cooling system break-make judgment value and cooling system operation judgment value, and be transferred to transformer at the main monitoring device 21 of line generalization.
Be illustrated in figure 4 the construction module figure of a kind of transformer of the present invention at the main monitoring device of line generalization, comprise:
Monitor value acquisition module 401, for: the monitor value obtaining each described characteristic parameter from multiple online single monitoring device that the characteristic parameter of described transformer is monitored;
Breakdown judge module 402, for: judge whether each described monitor value meets corresponding characteristic condition, if monitor value meets corresponding fault condition, then judge that the characteristic parameter corresponding to described monitor value breaks down, perform failure code display module 403, otherwise judge that the characteristic parameter corresponding to described monitor value is normal, perform monitor value acquisition module 401;
Failure code display module 403, for: the fault section determining the monitor value place not meeting individual features condition, described fault section associates with characteristic parameter, by the combination of all described fault section composition faults, inquire about the failure code corresponding to the combination of described fault, show described failure code and the suggested measures relevant to described failure code.
Wherein in an embodiment, described online single monitoring device comprises the online single monitoring device of dissolved gas analysis, described characteristic parameter comprises the gas concentration of oil dissolved gas, and the rate of growth of oil dissolved gas, described fault condition is: the monitor value of the gas concentration of oil dissolved gas exceedes preset concentration threshold value, and the monitor value of the rate of growth of oil dissolved gas exceedes default rate of growth threshold value.
Wherein in an embodiment, described oil dissolved gas is multiple gases, describedly also comprises at the main monitoring device of line generalization:
Oil dissolved gas failure analysis module, for: when the monitor value of the gas concentration of oil dissolved gas, and the monitor value of the rate of growth of oil dissolved gas is when meeting corresponding fault condition: calculate oil dissolved gas concentration proportion group, described oil dissolved gas concentration proportion group is the ratio of the monitor value of a kind of monitor value of gas concentration of oil dissolved gas and the gas concentration of another oil dissolved gas; The rate of growth calculating the monitor value place of the rate of growth of described oil dissolved gas is interval, obtains the interval corresponding fault degree of described rate of growth; Corresponding trouble location is determined in combination according to described oil dissolved gas concentration proportion group and fault degree;
Described fault combination also comprises oil dissolved gas concentration proportion group, fault degree and/or trouble location.
Wherein in an embodiment:
Described online single monitoring device comprises: the online single monitoring device of iron core grounding electric current, the online single monitoring device of oil level, the online single monitoring device of oil pressure, the online single monitoring device of transformer top-oil temperature, the online single monitoring device of transformer bottom oil temperature, the online single monitoring device of oil dissolved gas amount, the online single monitoring device of shelf depreciation, the online single monitoring device of sleeve pipe, the online single monitoring device of winding and/or the online single monitoring device of load current;
Described characteristic parameter comprises: the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, from the winding temperature that the online single monitoring device of winding temperature obtains, and/or from the load current value that the online single monitoring device of load current obtains,
Described fault condition is that the monitor value of described characteristic parameter exceedes the default fault threshold associated with described characteristic parameter.
Wherein in an embodiment:
When the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, or exceed corresponding fault threshold from the winding temperature that the online single monitoring device of winding temperature obtains, then carry out early warning and alarm operation,
When the load current value obtained from the online single monitoring device of load current exceedes corresponding threshold value, carry out overload calculating, obtain overload current value, obtain and show capability of overload assessment corresponding to described overload current value.
Wherein in an embodiment:
Described online single monitoring device comprises the online single monitoring device of switch and/or the online single monitoring device of cooling system;
Described characteristic parameter comprises: the switch on and off judgment value obtained from the online single monitoring device of switch and/or switch run judgment value and/or the cooling system break-make judgment value that obtains from the online single monitoring device of cooling system and/or cooling system run judgment value;
Described fault condition be described switch on and off judgment value for abnormal, described switch run judgment value for abnormal, cooling system break-make judgment value is abnormal or described cooling system runs judgment value for abnormal.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (12)
1. the online integrated monitoring of transformer, is characterized in that, comprising:
Monitor value obtaining step, comprising: the monitor value obtaining each described characteristic parameter from multiple online single monitoring device of monitoring the characteristic parameter of described transformer;
Breakdown judge step, comprise: judge whether each described monitor value meets corresponding characteristic condition, if monitor value meets corresponding fault condition, then judge that the characteristic parameter corresponding to described monitor value breaks down, perform failure code step display, otherwise judge that the characteristic parameter corresponding to described monitor value is normal, perform monitor value obtaining step;
Failure code step display, comprise: the fault section determining not meet the monitor value place of individual features condition, described fault section associates with characteristic parameter, by the combination of all described fault section composition faults, inquire about the failure code corresponding to the combination of described fault, show described failure code and the suggested measures relevant to described failure code.
2. the online integrated monitoring of transformer according to claim 1, it is characterized in that, described online single monitoring device comprises the online single monitoring device of dissolved gas analysis, described characteristic parameter comprises the gas concentration of oil dissolved gas, and the rate of growth of oil dissolved gas, described fault condition is: the monitor value of the gas concentration of oil dissolved gas exceedes preset concentration threshold value, and the monitor value of the rate of growth of oil dissolved gas exceedes default rate of growth threshold value.
3. the online integrated monitoring of transformer according to claim 2, is characterized in that, described oil dissolved gas is multiple gases, and described online integrated monitoring also comprises:
When the monitor value of the gas concentration of oil dissolved gas, and the monitor value of the rate of growth of oil dissolved gas is when meeting corresponding fault condition: calculate oil dissolved gas concentration proportion group, described oil dissolved gas concentration proportion group is combined by multiple oil dissolved gas concentration proportion, and described oil dissolved gas concentration is the ratio of the monitor value of a kind of monitor value of gas concentration of oil dissolved gas and the gas concentration of another oil dissolved gas; The rate of growth calculating the monitor value place of the rate of growth of described oil dissolved gas is interval, obtains the interval corresponding fault degree of described rate of growth; Corresponding trouble location is determined in combination according to described oil dissolved gas concentration proportion group and fault degree;
Described fault combination also comprises oil dissolved gas concentration proportion group, fault degree and/or trouble location.
4. the online integrated monitoring of transformer according to claim 1, is characterized in that:
Described characteristic parameter comprises: the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, from the winding temperature that the online single monitoring device of winding temperature obtains, and/or from the load current value that the online single monitoring device of load current obtains,
Described fault condition is that the monitor value of described characteristic parameter exceedes the default fault threshold associated with described characteristic parameter.
5. the online integrated monitoring of transformer according to claim 4, is characterized in that:
When the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, or exceed corresponding fault threshold from the winding temperature that the online single monitoring device of winding temperature obtains, then carry out early warning and alarm operation,
When the load current value obtained from the online single monitoring device of load current exceedes corresponding threshold value, carry out overload calculating, obtain overload current value, obtain and show capability of overload assessment corresponding to described overload current value.
6. the online integrated monitoring of transformer according to claim 1, is characterized in that:
Described characteristic parameter comprises: the switch on and off judgment value obtained from the online single monitoring device of switch and/or switch run judgment value and/or the cooling system break-make judgment value that obtains from the online single monitoring device of cooling system and/or cooling system run judgment value;
Described fault condition be described switch on and off judgment value for abnormal, described switch run judgment value for abnormal, cooling system break-make judgment value is abnormal or described cooling system runs judgment value for abnormal.
7. transformer is at the main monitoring device of line generalization, it is characterized in that, comprising:
Monitor value acquisition module, for: the monitor value obtaining each described characteristic parameter from multiple online single monitoring device that the characteristic parameter of described transformer is monitored;
Breakdown judge module, for: judge whether each described monitor value meets corresponding characteristic condition, if monitor value meets corresponding fault condition, then judge that the characteristic parameter corresponding to described monitor value breaks down, perform failure code display module, otherwise judge that the characteristic parameter corresponding to described monitor value is normal, perform monitor value acquisition module;
Failure code display module, for: the fault section determining the monitor value place not meeting individual features condition, described fault section associates with characteristic parameter, by the combination of all described fault section composition faults, inquire about the failure code corresponding to the combination of described fault, show described failure code and the suggested measures relevant to described failure code.
8. transformer according to claim 7 is at the main monitoring device of line generalization, it is characterized in that, described online single monitoring device comprises the online single monitoring device of dissolved gas analysis, described characteristic parameter comprises the gas concentration of oil dissolved gas, and the rate of growth of oil dissolved gas, described fault condition is: the monitor value of the gas concentration of oil dissolved gas exceedes preset concentration threshold value, and the monitor value of the rate of growth of oil dissolved gas exceedes default rate of growth threshold value.
9. transformer according to claim 8 is at the main monitoring device of line generalization, it is characterized in that, described oil dissolved gas is multiple gases, describedly also comprises at the main monitoring device of line generalization:
Oil dissolved gas failure analysis module, for: when the monitor value of the gas concentration of oil dissolved gas, and the monitor value of the rate of growth of oil dissolved gas is when meeting corresponding fault condition: calculate oil dissolved gas concentration proportion group, described oil dissolved gas concentration proportion group is combined by multiple oil dissolved gas concentration proportion, and described oil dissolved gas concentration is the ratio of the monitor value of a kind of monitor value of gas concentration of oil dissolved gas and the gas concentration of another oil dissolved gas; The rate of growth calculating the monitor value place of the rate of growth of described oil dissolved gas is interval, obtains the interval corresponding fault degree of described rate of growth; Corresponding trouble location is determined in combination according to described oil dissolved gas concentration proportion group and fault degree;
Described fault combination also comprises oil dissolved gas concentration proportion group, fault degree and/or trouble location.
10. transformer according to claim 7 is at the main monitoring device of line generalization, it is characterized in that:
Described online single monitoring device comprises: the online single monitoring device of iron core grounding electric current, the online single monitoring device of oil level, the online single monitoring device of oil pressure, the online single monitoring device of transformer top-oil temperature, the online single monitoring device of transformer bottom oil temperature, the online single monitoring device of oil dissolved gas amount, the online single monitoring device of shelf depreciation, the online single monitoring device of sleeve pipe, the online single monitoring device of winding and/or the online single monitoring device of load current;
Described characteristic parameter comprises: the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, from the winding temperature that the online single monitoring device of winding temperature obtains, and/or from the load current value that the online single monitoring device of load current obtains,
Described fault condition is that the monitor value of described characteristic parameter exceedes the default fault threshold associated with described characteristic parameter.
11. transformers according to claim 10, at the main monitoring device of line generalization, is characterized in that:
When the iron core grounding electric current obtained from the online single monitoring device of iron core grounding electric current, from the oil level that the online single monitoring device of oil level obtains, from the oil pressure that the online single monitoring device of oil pressure obtains, from the transformer top-oil temperature that the online single monitoring device of transformer top-oil temperature obtains, from the transformer bottom oil temperature that the online single monitoring device of transformer bottom oil temperature obtains, from the oil dissolved gas amount that the online single monitoring device of oil dissolved gas amount obtains, from the partial discharge quantity that the online single monitoring device of shelf depreciation obtains, from the casing monitoring value that the online single monitoring device of sleeve pipe obtains, or exceed corresponding fault threshold from the winding temperature that the online single monitoring device of winding temperature obtains, then carry out early warning and alarm operation,
When the load current value obtained from the online single monitoring device of load current exceedes corresponding threshold value, carry out overload calculating, obtain overload current value, obtain and show capability of overload assessment corresponding to described overload current value.
12. transformers according to claim 7, at the main monitoring device of line generalization, is characterized in that:
Described online single monitoring device comprises the online single monitoring device of switch and/or the online single monitoring device of cooling system;
Described characteristic parameter comprises: the switch on and off judgment value obtained from the online single monitoring device of switch and/or switch run judgment value and/or the cooling system break-make judgment value that obtains from the online single monitoring device of cooling system and/or cooling system run judgment value;
Described fault condition be described switch on and off judgment value for abnormal, described switch run judgment value for abnormal, cooling system break-make judgment value is abnormal or described cooling system runs judgment value for abnormal.
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| CN201510032877.3A CN104614018A (en) | 2015-01-22 | 2015-01-22 | On-line integrated monitoring method and system for transformer |
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| CN201510032877.3A CN104614018A (en) | 2015-01-22 | 2015-01-22 | On-line integrated monitoring method and system for transformer |
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| CN105842575A (en) * | 2016-03-09 | 2016-08-10 | 国网浙江省电力公司湖州供电公司 | Status monitoring data mining and hidden danger identification method and apparatus for transmission and transformation equipment |
| CN107238770A (en) * | 2017-06-14 | 2017-10-10 | 唐山现代工控技术有限公司 | A kind of method and device of field equipment malfunction monitoring |
| CN107328438A (en) * | 2017-07-03 | 2017-11-07 | 国网黑龙江省电力有限公司哈尔滨供电公司 | A kind of power transformer runs comprehensive monitor system |
| CN107562008A (en) * | 2017-09-04 | 2018-01-09 | 贵州乌江水电开发有限责任公司构皮滩发电厂 | A kind of cooler full cut-off protection control method of main transformer |
| CN107607321A (en) * | 2017-09-06 | 2018-01-19 | 成都大汇物联科技有限公司 | A kind of equipment fault accurate positioning method |
| CN108037387A (en) * | 2017-12-05 | 2018-05-15 | 北京能源集团有限责任公司 | The equipment fault analysis method and device collected based on cluster |
| CN110174137A (en) * | 2019-05-07 | 2019-08-27 | 西安交通大学 | A kind of transformer monitoring device and method based on non electrical quantity comprehensive characteristics information |
| CN111371069A (en) * | 2020-04-14 | 2020-07-03 | 攀钢集团西昌钢钒有限公司 | Overtemperature protection device for transformer |
| WO2020224534A1 (en) * | 2019-05-07 | 2020-11-12 | 北京中瑞和电气有限公司 | Oil-immersed power transformer non-electricity protection fault recording device and method |
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| CN105842575A (en) * | 2016-03-09 | 2016-08-10 | 国网浙江省电力公司湖州供电公司 | Status monitoring data mining and hidden danger identification method and apparatus for transmission and transformation equipment |
| CN107238770A (en) * | 2017-06-14 | 2017-10-10 | 唐山现代工控技术有限公司 | A kind of method and device of field equipment malfunction monitoring |
| CN107328438A (en) * | 2017-07-03 | 2017-11-07 | 国网黑龙江省电力有限公司哈尔滨供电公司 | A kind of power transformer runs comprehensive monitor system |
| CN107562008A (en) * | 2017-09-04 | 2018-01-09 | 贵州乌江水电开发有限责任公司构皮滩发电厂 | A kind of cooler full cut-off protection control method of main transformer |
| CN107607321B (en) * | 2017-09-06 | 2019-11-05 | 成都大汇物联科技有限公司 | A kind of equipment fault accurate positioning method |
| CN107607321A (en) * | 2017-09-06 | 2018-01-19 | 成都大汇物联科技有限公司 | A kind of equipment fault accurate positioning method |
| CN108037387B (en) * | 2017-12-05 | 2020-06-19 | 北京能源集团有限责任公司 | Equipment fault analysis method and device based on clustering |
| CN108037387A (en) * | 2017-12-05 | 2018-05-15 | 北京能源集团有限责任公司 | The equipment fault analysis method and device collected based on cluster |
| CN110174137A (en) * | 2019-05-07 | 2019-08-27 | 西安交通大学 | A kind of transformer monitoring device and method based on non electrical quantity comprehensive characteristics information |
| WO2020224534A1 (en) * | 2019-05-07 | 2020-11-12 | 北京中瑞和电气有限公司 | Oil-immersed power transformer non-electricity protection fault recording device and method |
| WO2020224553A1 (en) * | 2019-05-07 | 2020-11-12 | 北京中瑞和电气有限公司 | Transformer monitoring apparatus and method based on non-electric-quantity comprehensive characteristic information |
| US11726145B2 (en) | 2019-05-07 | 2023-08-15 | Beijing Zhongruthe Electrical Co., Ltd | Transformer monitoring apparatus and method based on non-electricity comprehensive characteristic information |
| CN111371069A (en) * | 2020-04-14 | 2020-07-03 | 攀钢集团西昌钢钒有限公司 | Overtemperature protection device for transformer |
| CN111371069B (en) * | 2020-04-14 | 2023-01-13 | 攀钢集团西昌钢钒有限公司 | Overtemperature protection device for transformer |
| CN112349490A (en) * | 2020-11-03 | 2021-02-09 | 国网山东省电力公司寿光市供电公司 | Transformer with respiration monitoring control function |
| CN112349490B (en) * | 2020-11-03 | 2021-08-13 | 国网山东省电力公司寿光市供电公司 | Transformer with respiration monitoring control function |
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