CN111781500A - Fault maintenance method, device, equipment and medium for high-voltage motor - Google Patents

Fault maintenance method, device, equipment and medium for high-voltage motor Download PDF

Info

Publication number
CN111781500A
CN111781500A CN202010669516.0A CN202010669516A CN111781500A CN 111781500 A CN111781500 A CN 111781500A CN 202010669516 A CN202010669516 A CN 202010669516A CN 111781500 A CN111781500 A CN 111781500A
Authority
CN
China
Prior art keywords
voltage
voltage regulator
fault
stator winding
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010669516.0A
Other languages
Chinese (zh)
Inventor
谈廷华
刘伟
胡年春
唐明权
张治国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pangang Group Mining Co Ltd
Original Assignee
Pangang Group Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pangang Group Mining Co Ltd filed Critical Pangang Group Mining Co Ltd
Priority to CN202010669516.0A priority Critical patent/CN111781500A/en
Publication of CN111781500A publication Critical patent/CN111781500A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34Testing dynamo-electric machines
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines

Abstract

The application discloses a fault maintenance method of a high-voltage motor, which is applied to a control system of the high-voltage motor, and comprises a voltage regulator and a lighting transformer, wherein the input end of the voltage regulator is used for receiving 220V alternating current, the output end of the voltage regulator is connected with the secondary side of the lighting transformer, and the primary side of the lighting transformer is respectively connected with a stator winding and the ground of the high-voltage motor; the method comprises the following steps: regulating the output voltage of the voltage regulator to a preset voltage value by using a voltage regulator; detecting whether discharge or smoke occurs at the target position of the stator winding during the period that the lighting transformer is boosted to 220V from the preset voltage value; if so, judging that the winding at the target position has a fault, and maintaining the winding at the target position. Obviously, the method can quickly find out the fault point of insulation damage in the stator winding, so that maintenance personnel only need to locally maintain the stator winding, and the maintenance cost required by maintaining the stator winding can be obviously reduced.

Description

Fault maintenance method, device, equipment and medium for high-voltage motor
Technical Field
The invention relates to the technical field of high-voltage motors, in particular to a fault maintenance method, a fault maintenance device, fault maintenance equipment and a fault maintenance medium for a high-voltage motor.
Background
High-voltage motor is comparatively common production facility in the mine enterprise, consequently, high-voltage motor's stator winding can appear the problem of insulating layer damage in the use often, when the insulating layer of stator winding appears damaging, can make high-voltage motor unable normal operating.
In the prior art, if the stator winding of the high-voltage motor is damaged, because a fault point of the damaged winding cannot be observed from the outer surface of the stator winding, the whole stator winding of the high-voltage motor usually needs to be dismounted and sent to a third party to perform fault maintenance on the damaged winding in the stator winding. Obviously, the fault maintenance method not only needs to consume a large amount of human resources to disassemble the stator winding of the high-voltage motor, but also needs high transportation cost and maintenance cost to send the stator winding of the high-voltage motor to a third party for repair.
Therefore, how to reduce the human resources and maintenance cost required to be consumed in the process of maintaining the stator winding of the high-voltage motor is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a method, an apparatus, a device and a medium for repairing a fault of a high voltage motor, so as to reduce human resources and maintenance costs required to be consumed in the process of repairing a stator winding of the high voltage motor. The specific scheme is as follows:
a fault maintenance method of a high-voltage motor is applied to a control system of the high-voltage motor, wherein the control system comprises a voltage regulator and a lighting transformer, the input end of the voltage regulator is used for receiving 220V alternating current, the output end of the voltage regulator is connected with the secondary side of the lighting transformer, and the primary side of the lighting transformer is respectively connected with a stator winding of the high-voltage motor and the ground; the method comprises the following steps:
regulating the output voltage of the voltage regulator to a preset voltage value by using the voltage regulator;
detecting whether discharge or smoke is generated at the target position of the stator winding during the period that the lighting transformer is boosted to 220V from the preset voltage value;
and if so, judging that the winding at the target position has a fault, and maintaining the winding at the target position.
Preferably, the process of regulating the output voltage of the voltage regulator to a preset voltage value by using the voltage regulator includes:
and uniformly regulating the output voltage of the voltage regulator to the preset voltage value by using the voltage regulator.
Preferably, the preset voltage value ranges from 10V to 36V.
Preferably, the process of performing maintenance on the winding at the target position includes:
removing and/or cleaning and/or insulation wrapping and/or painting and/or drying the windings at the target location to repair the windings at the target location.
Preferably, the method further comprises the following steps:
detecting whether the output voltage of the voltage regulator is the preset voltage value or not;
if not, the output voltage of the voltage regulator is adjusted by using the voltage regulator until the output voltage of the voltage regulator is the preset voltage value.
Preferably, the detecting whether the output voltage of the voltage regulator is the preset voltage value includes:
and detecting whether the output voltage of the voltage regulator is the preset voltage value or not by using a voltmeter.
Correspondingly, the invention also discloses a fault maintenance device of the high-voltage motor, which is applied to a control system of the high-voltage motor, wherein the control system comprises a voltage regulator and a lighting transformer, the input end of the voltage regulator is used for receiving 220V alternating current, the output end of the voltage regulator is connected with the secondary side of the lighting transformer, and the primary side of the lighting transformer is respectively connected with a stator winding of the high-voltage motor and the ground; the method comprises the following steps:
the voltage adjusting module is used for adjusting the output voltage of the voltage regulator to a preset voltage value by using the voltage regulator;
the fault detection module is used for detecting whether discharge or smoke occurs at the target position of the stator winding during the period that the lighting transformer is boosted to the 220V voltage from the preset voltage value;
and the fault maintenance module is used for judging that the winding at the target position has a fault and maintaining the winding at the target position when the judgment result of the fault detection module is yes.
Correspondingly, the invention also discloses a fault maintenance device of the high-voltage motor, which comprises:
a memory for storing a computer program;
a processor for implementing the steps of a method of fault repair of a high voltage motor as disclosed in the foregoing when executing said computer program.
Accordingly, the present invention also discloses a computer readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of a method of fault repair of a high voltage motor as disclosed in the preceding.
Therefore, in the invention, firstly, the voltage regulator is utilized to regulate the output voltage of the voltage regulator to a preset voltage value, and in the process that the lighting transformer is boosted to 220V from the preset voltage value, whether discharge or smoke occurs at the target position of the stator winding of the high-voltage motor is detected, if the discharge or smoke occurs at the target position of the stator winding, the insulation damage occurs at the winding at the target position of the stator winding, under the condition, the purpose of maintaining the stator winding can be achieved only by repairing the winding at the target position of the stator winding. Obviously, the fault maintenance method can rapidly find out the fault point of the insulation damage in the stator winding by utilizing the discharge or smoke phenomenon of the insulation damage winding in the current rising process, so that in the maintenance process of the stator winding of the high-voltage motor, only the fault of the stator winding at the target position needs to be locally maintained, the stator winding of the high-voltage motor does not need to be dismantled and sent to a third party for repair treatment. Therefore, the fault maintenance method can remarkably reduce the human resources and maintenance cost consumed in the process of maintaining the stator winding of the high-voltage motor. Correspondingly, the fault maintenance device, equipment and medium for the high-voltage motor disclosed by the invention also have the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for repairing a fault of a high-voltage motor according to an embodiment of the present invention;
fig. 2 is a block diagram of a control system of a high-voltage motor according to an embodiment of the present invention;
fig. 3 is a structural view of a breakdown maintenance apparatus of a high-voltage motor according to an embodiment of the present invention;
fig. 4 is a structural diagram of a fault maintenance apparatus for a high-voltage motor according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a fault maintenance method for a high-voltage motor according to an embodiment of the present invention, where the fault maintenance method is applied to a control system of the high-voltage motor, where the control system includes a voltage regulator and a lighting transformer, an input terminal of the voltage regulator is used for receiving 220V alternating current, an output terminal of the voltage regulator is connected to a secondary side of the lighting transformer, and a primary side of the lighting transformer is respectively connected to a stator winding of the high-voltage motor and ground; the fault maintenance method comprises the following steps:
step S11: regulating the output voltage of the voltage regulator to a preset voltage value by using a voltage regulator;
step S12: detecting whether discharge or smoke occurs at the target position of the stator winding during the period that the lighting transformer is boosted to 220V from the preset voltage value;
step S13: if so, judging that the winding at the target position has a fault, and maintaining the winding at the target position.
In the embodiment, a novel fault maintenance method for a high-voltage motor is provided, by which the human resources and maintenance cost required to be consumed in the maintenance process of the stator winding of the high-voltage motor can be significantly reduced.
Specifically, the fault repairing method is applied to a control system of a high-voltage motor, please refer to fig. 2, and fig. 2 is a structural diagram of the control system of the high-voltage motor according to an embodiment of the present invention, where the control system includes a voltage regulator TB and a lighting transformer PT, an input terminal of the voltage regulator TB is configured to receive 220V ac power, an output terminal of the voltage regulator TB is connected to a secondary side of the lighting transformer PT, a primary side of the lighting transformer PT is respectively connected to a stator winding of the high-voltage motor M and ground, that is, a primary side output voltage terminal a1 of the lighting transformer PT is connected to the stator winding of the high-voltage motor M, and a primary side output voltage terminal X of the lighting transformer PT is connected to a housing of the high. In practical applications, in order to ensure the safety of the high-voltage motor during use, a knife switch HK and a fuse FU are generally disposed at the front end of the voltage regulator TB.
After connecting each electrical equipment in the control system of the high-voltage motor, closing the knife switch HK, the voltage regulator can receive 220V alternating current, at the moment, the voltage regulator can regulate the output voltage of the voltage regulator to a preset voltage value, and when the output voltage of the voltage regulator is the preset voltage value, the output voltage of the voltage regulator can be transmitted to the primary side of the lighting transformer through the secondary side of the lighting transformer and supplies power to the high-voltage motor.
It can be understood that, because the input terminal of the voltage regulator is used for receiving 220V ac power, the output voltage of the voltage regulator varies with the ac power, and then the voltage received by the lighting transformer connected to the rear terminal of the voltage regulator also varies with the output voltage of the voltage regulator. Because the rear end of the lighting transformer is connected with the stator winding of the high-voltage motor, if the target position of the stator winding is damaged by the insulating layer, the target position of the stator winding where the insulating layer is damaged can generate discharge or smoke under the action of gradually increased voltage. In this case, the winding with the damaged insulation layer in the stator winding can be exposed, so that a maintenance worker can maintain and treat the winding with the damaged insulation layer on the stator winding. In this embodiment, the target position of the stator winding refers to an arbitrary position on the stator winding.
In other words, during the period that the lighting transformer is boosted to 220V from the preset voltage value, whether the insulation damage fault occurs at the target position of the stator winding can be judged by detecting whether the phenomenon of discharging or smoking occurs at the target position of the stator winding of the high-voltage motor.
When the method is used for detecting the winding with insulation damage fault in the stator winding of the high-voltage motor, fault maintenance can be performed on the stator winding without completely disassembling the stator winding, and only partial maintenance can be performed on the winding with insulation damage in the stator winding. In the prior art, if the stator winding of the high-voltage motor has an insulation failure, because the high-voltage motor is bulky, a 75-ton overhead crane is generally required to disassemble and lift the high-voltage motor with a weight of about 27 tons so as to send the high-voltage motor to a third party for maintenance, and after the stator winding of the high-voltage motor is sent to the third party, the maintenance cost of ten thousand yuan and the maintenance time of 1 to 2 months are required. Obviously, compared with the prior art, the fault repairing method provided by the application not only can reduce the repairing intensity of a repairing person, but also can obviously reduce the human resources and the repairing cost consumed in the process of repairing the stator winding of the high-voltage motor.
In summary, the fault maintenance method for the stator winding of the high-voltage motor has the following advantages: (1) new maintenance equipment does not need to be purchased, and only a voltage regulator and an illumination transformer which are common in engineering are needed; (2) 1 to 2 months of maintenance time can be saved, the maintenance period is shortened, and nearly ten thousand yuan of maintenance cost is saved; (3) the stator winding of the high-voltage motor with a fault can be directly maintained in the original factory, and the time and cost for disassembling and hoisting the stator winding of the high-voltage motor to a third party are saved; (4) for enterprise management, the fault maintenance method can reduce the workload of maintenance personnel and the maintenance intensity, and can also save the occupation rate of enterprises on maintenance funds.
In addition, in practical applications, a damp fault or a metallic ground fault of the power cable can also be detected by using the method provided by the application. Specifically, in the actual operation process, when a power cable has a damp fault or a metallic grounding fault, in the process of fault detection of the power cable, firstly, the power cable is powered off, and the residual charges in the power cable are discharged, then, the stator winding in the fault maintenance method provided by the application is replaced by the power cable to be detected, and in the process of gradually applying a continuous small current to the power cable, if a discharge phenomenon and/or a smoke phenomenon and/or a bubble phenomenon in water occurs at the target position of the power cable, a fault point exists at the target position of the power cable, so that the purpose of fault detection of the power cable can be achieved. In the actual detection process, since the length of the power cable is long, when a maintenance worker detects a fault point of the power cable, the maintenance worker needs to patrol and observe the fault point of the power cable, which is discharged or smoked, along the direction of the power cable.
It can be seen that, in this embodiment, firstly, the voltage regulator is utilized to regulate the output voltage of the voltage regulator to the preset voltage value, and in the process that the lighting transformer is boosted to 220V from the preset voltage value, it is detected whether the target position of the stator winding of the high-voltage motor discharges or smokes, if the target position of the stator winding discharges or smokes, it is indicated that the winding at the target position of the stator winding is damaged by insulation, and in this case, only the winding at the target position of the stator winding needs to be repaired, so that the purpose of maintaining the stator winding can be achieved. Obviously, the fault maintenance method can quickly find out the fault point of the insulation damage in the stator winding by utilizing the discharge or smoke phenomenon of the insulation damage winding in the voltage rising process, so that in the maintenance process of the stator winding of the high-voltage motor, only the fault of the stator winding at the target position needs to be locally maintained, the stator winding of the high-voltage motor does not need to be dismantled and sent to a third party for repair treatment. Therefore, the fault maintenance method can remarkably reduce the human resources and maintenance cost consumed in the process of maintaining the stator winding of the high-voltage motor.
Based on the above embodiments, this embodiment further describes and optimizes the technical solution, and as a preferred implementation, the above steps: utilize the process of voltage regulator with the output voltage regulation of voltage regulator to predetermineeing the voltage value, include:
the output voltage of the voltage regulator is uniformly regulated to a preset voltage value by using the voltage regulator.
In this embodiment, in the process of regulating the output voltage of the voltage regulator to the preset voltage value by using the voltage regulator, the output voltage of the voltage regulator is uniformly regulated to the preset voltage value by using the voltage regulator. Because the adverse effect on the lighting transformer connected with the rear stage of the voltage regulator due to overlarge output pressure difference of the voltage regulator can be avoided as much as possible by the adjusting mode, the safety and the reliability in the fault maintenance process of the high-voltage motor can be further improved.
Based on the above embodiments, the present embodiment further describes and optimizes the technical solution, and as a preferred implementation, the value range of the preset voltage value is 10V to 36V.
In the actual operation process, can set up the value range of predetermineeing voltage as 10V ~ 36V, because obtain through a large amount of actual operation experiences, when setting up predetermineeing the voltage value as arbitrary value in 10V ~ 36V, not only be unlikely to because too low and influence the normal operating of voltage regulator with the output voltage adjustment of voltage regulator, moreover, also can make lighting transformer have great step-up scope, just from this, it utilizes discharge or smoke phenomenon to find out the fault point that insulation damage appears in the stator winding fast more easily in lighting transformer voltage rising process. Obviously, the arrangement mode can enable the insulation damage detection result of the stator winding to be more accurate and reliable.
Based on the above embodiments, this embodiment further describes and optimizes the technical solution, and as a preferred implementation, the above steps: a process for performing maintenance on a winding at a target location, comprising:
the windings at the target location are removed and/or cleaned and/or insulated wrapped and/or varnished and/or dried to repair the windings at the target location.
It can be understood that in practical application, the reasons of insulation fault of the stator winding of the high-voltage motor are various, so that in the process of maintaining the insulation damage winding at the target position of the stator winding of the high-voltage motor, the insulation damage winding can be repaired in the modes of removing, cleaning, insulating wrapping, dipping paint or drying the winding at the target position, and the purpose of fault maintenance of the stator winding of the high-voltage motor is achieved.
Obviously, through the technical scheme provided by the embodiment, the fault maintenance mode of the stator winding of the high-voltage motor can be more flexible and diversified.
Based on the foregoing embodiment, this embodiment further describes and optimizes the technical solution, and as a preferred implementation, the fault repairing method further includes:
detecting whether the output voltage of the voltage regulator is a preset voltage value or not;
if not, the output voltage of the voltage regulator is adjusted by the voltage regulator until the output voltage of the voltage regulator is the preset voltage value.
It can be understood that, in the actual operation process, the output voltage of the voltage regulator is not necessarily the preset voltage value in the initial state, so that, in the process of regulating the output voltage of the voltage regulator to the preset voltage value, it is necessary to detect whether the output voltage of the voltage regulator is the preset voltage value, and if the output voltage of the voltage regulator is the preset voltage value, the subsequent process steps can be continuously executed; if the output voltage of the voltage regulator is not the preset voltage value, the output voltage of the voltage regulator needs to be adjusted by the voltage regulator until the output voltage of the voltage regulator is adjusted to the preset voltage value, and subsequent fault maintenance operation can be continuously executed.
Obviously, the technical scheme provided by the embodiment can enable the fault maintenance method provided by the application to be more complete and comprehensive.
As a preferred embodiment, the above steps: the process of detecting whether the output voltage of the voltage regulator is a preset voltage value comprises the following steps:
and detecting whether the output voltage of the voltage regulator is a preset voltage value or not by using a voltmeter.
Specifically, in this embodiment, the output voltage of the voltage regulator is detected by using the voltmeter, because the voltmeter can accurately measure the output voltage of the voltage regulator, and the voltmeter is also common in daily life, when the voltmeter is used for detecting the output voltage of the voltage regulator, the universality of the fault maintenance method provided by the application in the actual use process can be further improved.
Referring to fig. 3, fig. 3 is a structural diagram of a fault repairing apparatus for a high-voltage motor according to an embodiment of the present invention, the fault repairing apparatus is applied to a control system of the high-voltage motor, wherein the control system includes a voltage regulator and a lighting transformer, an input terminal of the voltage regulator is configured to receive 220V alternating current, an output terminal of the voltage regulator is connected to a secondary side of the lighting transformer, and a primary side of the lighting transformer is respectively connected to a stator winding of the high-voltage motor and ground; this trouble maintenance device includes:
the voltage adjusting module 21 is configured to adjust the output voltage of the voltage regulator to a preset voltage value by using the voltage regulator;
the fault detection module 22 is used for detecting whether discharging or smoking occurs at the target position of the stator winding during the period that the lighting transformer boosts the preset voltage value to 220V;
and the fault maintenance module 23 is used for judging that the winding at the target position has a fault and maintaining the winding at the target position when the judgment result of the fault detection module is yes.
The fault maintenance device of the high-voltage motor provided by the embodiment of the invention has the beneficial effects of the fault maintenance method of the high-voltage motor.
Referring to fig. 4, fig. 4 is a structural diagram of a fault repairing apparatus of a high voltage motor according to an embodiment of the present invention, the fault repairing apparatus including:
a memory 31 for storing a computer program;
a processor 32 for implementing the steps of a method of fault repair of a high voltage motor as disclosed in the foregoing when executing a computer program.
The fault maintenance device of the high-voltage motor provided by the embodiment of the invention has the beneficial effects of the fault maintenance method of the high-voltage motor.
Accordingly, the embodiment of the present invention also discloses a computer readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the fault repairing method for the high-voltage motor as disclosed in the foregoing.
The computer-readable storage medium provided by the embodiment of the invention has the beneficial effects of the fault maintenance method of the high-voltage motor disclosed in the foregoing.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The method, the device, the equipment and the medium for fault maintenance of the high-voltage motor provided by the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (9)

1. The fault maintenance method of the high-voltage motor is characterized by being applied to a control system of the high-voltage motor, wherein the control system comprises a voltage regulator and a lighting transformer, the input end of the voltage regulator is used for receiving 220V alternating current, the output end of the voltage regulator is connected with the secondary side of the lighting transformer, and the primary side of the lighting transformer is respectively connected with a stator winding of the high-voltage motor and the ground; the method comprises the following steps:
regulating the output voltage of the voltage regulator to a preset voltage value by using the voltage regulator;
detecting whether discharge or smoke is generated at the target position of the stator winding during the period that the lighting transformer is boosted to 220V from the preset voltage value;
and if so, judging that the winding at the target position has a fault, and maintaining the winding at the target position.
2. The method of claim 1, wherein the step of regulating the output voltage of the voltage regulator to a predetermined voltage value using the voltage regulator comprises:
and uniformly regulating the output voltage of the voltage regulator to the preset voltage value by using the voltage regulator.
3. The method for repairing a fault of claim 1, wherein the preset voltage value ranges from 10V to 36V.
4. The fault servicing method of claim 1, wherein the procedure of servicing the winding at the target location comprises:
removing and/or cleaning and/or insulation wrapping and/or painting and/or drying the windings at the target location to repair the windings at the target location.
5. The fault servicing method of any one of claims 1 to 4, further comprising:
detecting whether the output voltage of the voltage regulator is the preset voltage value or not;
if not, the output voltage of the voltage regulator is adjusted by using the voltage regulator until the output voltage of the voltage regulator is the preset voltage value.
6. The method of claim 5, wherein the step of detecting whether the output voltage of the voltage regulator is the preset voltage value comprises:
and detecting whether the output voltage of the voltage regulator is the preset voltage value or not by using a voltmeter.
7. The fault maintenance device of the high-voltage motor is characterized by being applied to a control system of the high-voltage motor, wherein the control system comprises a voltage regulator and a lighting transformer, the input end of the voltage regulator is used for receiving 220V alternating current, the output end of the voltage regulator is connected with the secondary side of the lighting transformer, and the primary side of the lighting transformer is respectively connected with a stator winding of the high-voltage motor and the ground; the method comprises the following steps:
the voltage adjusting module is used for adjusting the output voltage of the voltage regulator to a preset voltage value by using the voltage regulator;
the fault detection module is used for detecting whether discharge or smoke occurs at the target position of the stator winding during the period that the lighting transformer is boosted to the 220V voltage from the preset voltage value;
and the fault maintenance module is used for judging that the winding at the target position has a fault and maintaining the winding at the target position when the judgment result of the fault detection module is yes.
8. A malfunction repair apparatus of a high-voltage motor, characterized by comprising:
a memory for storing a computer program;
processor for implementing the steps of a method of fault repair of a high voltage motor according to any one of claims 1 to 6 when executing said computer program.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of a method of fault repair of a high-voltage motor as claimed in any one of claims 1 to 6.
CN202010669516.0A 2020-07-13 2020-07-13 Fault maintenance method, device, equipment and medium for high-voltage motor Pending CN111781500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010669516.0A CN111781500A (en) 2020-07-13 2020-07-13 Fault maintenance method, device, equipment and medium for high-voltage motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010669516.0A CN111781500A (en) 2020-07-13 2020-07-13 Fault maintenance method, device, equipment and medium for high-voltage motor

Publications (1)

Publication Number Publication Date
CN111781500A true CN111781500A (en) 2020-10-16

Family

ID=72768500

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010669516.0A Pending CN111781500A (en) 2020-07-13 2020-07-13 Fault maintenance method, device, equipment and medium for high-voltage motor

Country Status (1)

Country Link
CN (1) CN111781500A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111766547A (en) * 2020-07-13 2020-10-13 攀钢集团矿业有限公司 Method, device, equipment and medium for fault maintenance of stator winding of high-voltage motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201477191U (en) * 2009-08-11 2010-05-19 彭嘉宁 Motor stator winding inter-turn insulation tester
CN206470353U (en) * 2017-02-17 2017-09-05 中国十九冶集团有限公司 Motor wears burning detection means
CN111175621A (en) * 2020-01-07 2020-05-19 岭东核电有限公司 Method, system and equipment for detecting insulation defects of medium-voltage and high-voltage rotating motors in nuclear power station

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201477191U (en) * 2009-08-11 2010-05-19 彭嘉宁 Motor stator winding inter-turn insulation tester
CN206470353U (en) * 2017-02-17 2017-09-05 中国十九冶集团有限公司 Motor wears burning detection means
CN111175621A (en) * 2020-01-07 2020-05-19 岭东核电有限公司 Method, system and equipment for detecting insulation defects of medium-voltage and high-voltage rotating motors in nuclear power station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111766547A (en) * 2020-07-13 2020-10-13 攀钢集团矿业有限公司 Method, device, equipment and medium for fault maintenance of stator winding of high-voltage motor

Similar Documents

Publication Publication Date Title
US9941692B2 (en) Overvoltage protection for a multivoltage vehicle electrical system
US10476258B2 (en) Method of operating a protection device, associated computer program product, protection device and electrical installation
US9448605B2 (en) Redundant power supply system providing rapid start of backup
CN105098965A (en) Servo system and power supply switching method thereof
US9960668B2 (en) Method and device for controlling start of switching rectifier, and storage medium
CN111781500A (en) Fault maintenance method, device, equipment and medium for high-voltage motor
CA3164434A1 (en) Mining machine power adjusting method
EP3043063A1 (en) Islanded testing of a wind turbine generators compliance with fault ride through requirements of a power grid
US9520714B2 (en) Protecting an operation control unit connected to an electric machine via a long cable
RU2018144409A (en) Installation of electrical power supply and control of the installation
CN110752741A (en) Method, system, equipment and medium for controlling high-voltage and low-voltage power supply driving circuit to be powered on and powered off
CN109639233B (en) Potential induced attenuation device and control method thereof
AU2014265103A1 (en) Control method for preventing auxiliary generator circuit of diesel locomotive from overvoltage
JP2010068578A (en) Load amount estimation method, load curve derivation method, load curve deriving device, and load amount estimating device
JP6712269B2 (en) Power distribution system
US9479045B1 (en) Power supply avoiding auxiliary boost circuit over voltage
KR101871154B1 (en) Protection apparatus for inverter of solar power generation
CN111900783B (en) Over-power protection circuit, charger and over-power protection method
CN216355952U (en) Electrolytic capacitor protection circuit, flyback power circuit, drive board card and electronic equipment
RU2305354C2 (en) Method for protecting self-excited generator
CN207945085U (en) A kind of control system preventing air compressor machine exception start and stop
CN210297339U (en) Emergency power supply device of IT grounding system common rectifier frequency conversion device
CN115765422B (en) Control method and device of power supply circuit, storage medium and electronic device
CN216434328U (en) Electronic equipment and open circuit detection circuit thereof
US20230012380A1 (en) Systems and methods for providing ground fault protection on direct current power feeds of engine components

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20201016

RJ01 Rejection of invention patent application after publication