CN112431821A - Early warning device for hydraulic disc spring mechanism of high-voltage circuit breaker - Google Patents
Early warning device for hydraulic disc spring mechanism of high-voltage circuit breaker Download PDFInfo
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- CN112431821A CN112431821A CN202011256417.6A CN202011256417A CN112431821A CN 112431821 A CN112431821 A CN 112431821A CN 202011256417 A CN202011256417 A CN 202011256417A CN 112431821 A CN112431821 A CN 112431821A
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- circuit breaker
- energy storage
- alarm
- assembly
- early warning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
Abstract
The invention discloses a hydraulic disc spring mechanism early warning device of a high-voltage circuit breaker, which comprises a circuit breaker, a master control room, an energy storage detection assembly and an alarm assembly. According to the invention, through the design of the structures of the circuit breaker, the master control room, the energy storage detection assembly, the alarm assembly and the like, the master control room can find the energy storage condition of the circuit breaker at the opening/closing position by counting the energy storage signal times and the operation position, count and analyze the distribution condition of the pressing times, and deduce the position of a fault possibly existing in the hydraulic mechanism of the circuit breaker according to a judgment strategy; the invention realizes the purposes of manually and automatically early warning from the previous manual early warning, automatically realizing the accurate judgment of frequently pressed fault points, directly determining the direction of an overhaul scheme, improving the operation efficiency and reducing the power failure time.
Description
Technical Field
The invention belongs to the technical field of early warning equipment, and particularly relates to an early warning device for a hydraulic disc spring mechanism of a high-voltage circuit breaker.
Background
The high-voltage circuit breaker (or called high-voltage switch) not only can cut off or close the no-load current and load current in the high-voltage circuit, but also can cut off the overload current and short-circuit current by the action of the relay protection device when the system has a fault, and has quite perfect arc extinguishing structure and enough current breaking capacity, and can be divided into: oil circuit breakers (multiple oil circuit breakers, less oil circuit breakers), sulfur hexafluoride circuit breakers (SF6 circuit breakers), compressed air circuit breakers, vacuum circuit breakers, etc.
The hydraulic disc spring mechanism is made up of spring as energy storage component, hydraulic oil as the mechanism of transmission carrier, and its energy storage component has motor, oil pump, disc spring, energy storage piston and energy storage lifting rod etc. and its energy storage control component has travel switch, and its control circuit has auxiliary switch, closes and divides gate valve and diverter valve etc. and the energy storage process of hydraulic disc spring mechanism is: when the mechanism is in pressure loss, the contact of the travel switch is conducted and controlled, the motor is electrified, the motor rotates to drive the oil pump to pump oil from the low-pressure area to the high-pressure area, the high-pressure oil pushes the energy storage piston to move upwards along with the increase of the high-pressure oil quantity, the energy storage piston drives the lifting rod to move upwards, the lifting rod drives the tray to compress the spring, and when the predetermined position is reached, the contact of the travel switch is disconnected, and the motor stops rotating. The spring is kept in a compressed state due to the action of the sealing system, and in addition hydraulic disc spring mechanisms are commonly used in high voltage circuit breakers.
The hydraulic disc spring mechanism of the high-voltage circuit breaker in the prior art has the following problems: 1. the system does not have an automatic early warning function, needs operation and maintenance personnel to count a large amount of data to analyze and judge, and has higher professional level for the operation and maintenance personnel; 2. the operation and maintenance personnel can only carry out statistics on the data regularly, and can not find problems quickly and accurately; 3. the monitoring data volume is only the energy storage times, the judgment is not accurate enough, and therefore the early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker is provided to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a high-voltage circuit breaker hydraulic disc spring mechanism early warning device, which is characterized in that through the design of structures such as a circuit breaker, a main control room, an energy storage detection assembly, an alarm assembly and the like, the main control room can find the energy storage condition of the circuit breaker at an opening position/closing position by counting the times of energy storage signals and the operation position, count and analyze the distribution condition of the pressing times, and deduce the position of a possible fault in the circuit breaker hydraulic mechanism according to a judgment strategy; the invention can realize the purposes of manufacturing the early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker, converting the former manual monitoring mode into automatic judgment and analysis depending on tools, greatly improving the working efficiency and solving the problems in the prior art in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme: the early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker comprises a circuit breaker, a main control room, an energy storage detection assembly and an alarm assembly,
the breaker comprises a hydraulic disc spring mechanism, a brake opening position, a brake closing position and a high-pressure cylinder;
the energy storage detection assembly is used for counting the energy storage signal times and the operation positions of the circuit breaker, wherein the operation positions are the opening position and the closing position of the circuit breaker, and the energy storage signal times comprise the energy storage signal times of the circuit breaker at the opening position and the energy storage signal times of the circuit breaker at the closing position;
the main control room is used for analyzing the detection result of the energy storage detection assembly, so that the energy storage conditions of the breaker at the opening position and the closing position are found, the distribution condition of the pressing times is counted and analyzed, and the position where a fault possibly exists in the breaker hydraulic mechanism is deduced according to a judgment strategy;
the alarm assembly comprises an alarm judging unit and an emergency power-off unit; the alarm judging unit is used for judging the form of the alarm signal received by the alarm assembly so as to select different alarm modes; the emergency power-off unit is used for sending an application signal to the main control room when the alarm judging unit sends out an emergency alarm so as to carry out emergency power-off on the circuit breaker;
the method for judging the fault point frequently pressed by the hydraulic disc spring mechanism of the circuit breaker further comprises the following specific steps:
s1, detecting the energy storage times and the operation times of the hydraulic disc spring mechanism of the circuit breaker, and if the energy storage times of the hydraulic mechanism are abnormal, alarming through an alarming assembly;
s2, detecting the energy storage times and the operation times of the circuit breaker, and detecting the opening and closing positions of the circuit breaker, so that the inner leakage position of the energy storage detection assembly of the circuit breaker is judged according to different pressing conditions of the opening and closing positions;
s3, detecting the pressure of the high-pressure cylinder, confirming the inner leakage position of the energy storage detection assembly according to the opening and closing position, further accurately positioning the fault point of the energy storage detection assembly through the inner leakage position, and simultaneously alarming through the alarm assembly if the pressure of the high-pressure cylinder is abnormal;
and S4, determining a processing scheme through the fault point of the energy storage detection assembly accurately positioned, and processing the problem of the fault point.
Preferably, the alarm assembly further comprises an audible and visual alarm assembly and a signal transmission assembly, the audible and visual alarm assembly is used for performing audible and visual alarm under abnormal conditions, and the signal transmission assembly is used for transmitting alarm signals of the alarm judgment unit and the emergency power-off unit.
Preferably, the different alarm modes of the alarm assembly comprise sound-light alarm, power failure application and emergency power failure application, the master control room judges the signals of the power failure application and the emergency power failure application of the alarm assembly, and then whether the circuit breaker is powered off or not is selected.
Preferably, the high-pressure cylinder is provided with a pressure sensing assembly for detecting the pressure of the high-pressure cylinder, and the pressure sensing assembly is connected to the alarm assembly and used for directly alarming when the pressure of the high-pressure cylinder of the circuit breaker is abnormal.
Preferably, in step S1, the method for determining that the stored energy frequency of the hydraulic mechanism is abnormal is:
a1, the energy storage times of the breaker hydraulic mechanism exceed 6 times per day, and the alarm component gives an audible and visual alarm;
a2, the energy storage times of the breaker hydraulic mechanism exceed 10 times per day, and the alarm assembly applies for power failure in advance;
a3, the energy storage times of the breaker hydraulic mechanism exceed 10 minutes and 1 time, and the alarm component directly applies for emergency power failure.
Preferably, in step S2, the different pressing conditions of the open position and the close position include the open position pressing, the close position pressing and the close and close position pressing simultaneously.
Preferably, in step S3, if no abnormality occurs in the pressing conditions of the open position and the closed position, the fault point of the circuit breaker is located to the high-pressure cylinder after the pressure of the high-pressure cylinder is detected.
Preferably, in step S4, the pressing position of the switching position or the closing position is directly processed after the processing scheme is determined, and the accurate positioning of the fault point reduces the power failure time of the high-voltage circuit breaker.
The invention has the technical effects and advantages that: compared with the prior art, the early warning device for the hydraulic disc spring mechanism of the high-voltage circuit breaker has the following advantages:
1. according to the invention, through the design of the structures of the circuit breaker, the master control room, the energy storage detection assembly, the alarm assembly and the like, the master control room can find the energy storage condition of the circuit breaker at the opening/closing position by counting the energy storage signal times and the operation position, count and analyze the distribution condition of the pressing times, and deduce the position of a fault possibly existing in the hydraulic mechanism of the circuit breaker according to a judgment strategy;
2. the invention provides a brand-new high-voltage circuit breaker hydraulic disc spring mechanism early warning device and a hydraulic mechanism frequent-pressing fault point judgment method, which realize the purposes of realizing the accurate judgment of the frequent-pressing fault points from the previous manual early warning to the automatic early warning, directly determining the direction of an overhaul scheme, improving the operation efficiency and reducing the power failure time.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a flow chart of an early warning judgment method of the early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker.
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. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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.
The invention provides a hydraulic disc spring mechanism early warning device of a high-voltage circuit breaker as shown in figure 1, which comprises a circuit breaker, a main control room, an energy storage detection assembly and an alarm assembly,
the breaker comprises a hydraulic disc spring mechanism, a brake opening position, a brake closing position and a high-pressure cylinder;
the energy storage detection assembly is used for counting the energy storage signal times and the operation positions of the circuit breaker, the operation positions are the opening position and the closing position of the circuit breaker, and the energy storage signal times comprise the energy storage signal times of the circuit breaker at the opening position and the energy storage signal times of the circuit breaker at the closing position;
the main control room is used for analyzing the detection result of the energy storage detection assembly, so that the energy storage conditions of the breaker at the opening position and the closing position are found, the distribution condition of the pressing times is counted and analyzed, and the position where a fault possibly exists in the breaker hydraulic mechanism is deduced according to a judgment strategy;
the alarm assembly comprises an alarm judging unit and an emergency power-off unit; the alarm judging unit is used for judging the form of the alarm signal received by the alarm assembly so as to select different alarm modes; the emergency power-off unit is used for sending an application signal to the main control room when the alarm judging unit sends out an emergency alarm so as to carry out emergency power-off on the circuit breaker;
the method for judging the fault point frequently pressed by the hydraulic disc spring mechanism of the circuit breaker further comprises the following specific steps:
s1, detecting the energy storage times and the operation times of the hydraulic disc spring mechanism of the circuit breaker, and if the energy storage times of the hydraulic mechanism are abnormal, alarming through an alarming assembly;
s2, detecting the energy storage times and the operation times of the circuit breaker, and detecting the opening and closing positions of the circuit breaker, so that the inner leakage position of the energy storage detection assembly of the circuit breaker is judged according to different pressing conditions of the opening and closing positions;
s3, detecting the pressure of the high-pressure cylinder, confirming the inner leakage position of the energy storage detection assembly according to the opening and closing position, further accurately positioning the fault point of the energy storage detection assembly through the inner leakage position, and simultaneously alarming through the alarm assembly if the pressure of the high-pressure cylinder is abnormal;
and S4, determining a processing scheme through the fault point of the energy storage detection assembly accurately positioned, and processing the problem of the fault point.
The alarm assembly further comprises an acousto-optic alarm assembly and a signal transmission assembly, the acousto-optic alarm assembly is used for carrying out acousto-optic alarm under abnormal conditions, and the signal transmission assembly is used for transmitting alarm signals of the alarm judgment unit and the emergency power-off unit.
The different alarm modes of the alarm assembly comprise sound-light alarm, power failure application and emergency power failure application, the master control room judges signals of the power failure application and the emergency power failure application of the alarm assembly, and then whether the circuit breaker is powered off or not is selected.
Be provided with the pressure sensing subassembly that detects the pressure of high pressure cylinder on the high pressure cylinder, pressure sensing subassembly is connected in the warning subassembly for directly report to the police when the pressure of the high pressure cylinder of circuit breaker is unusual.
In step S1, the method of determining that the energy storage frequency of the hydraulic mechanism is abnormal is:
a1, the energy storage times of the breaker hydraulic mechanism exceed 6 times per day, and the alarm component gives an audible and visual alarm;
a2, the energy storage times of the breaker hydraulic mechanism exceed 10 times per day, and the alarm assembly applies for power failure in advance;
a3, the energy storage times of the breaker hydraulic mechanism exceed 10 minutes and 1 time, and the alarm component directly applies for emergency power failure.
In step S2, the different pressing conditions of the opening position and the closing position include pressing of the opening position, and simultaneous pressing of the closing position and the opening and closing position. In step S3, if no abnormality occurs in the different pressing conditions of the opening position and the closing position, the fault point of the circuit breaker is located to the high-pressure cylinder after the pressure of the high-pressure cylinder is detected. In step S4, the pressing position of the switching position or the closing position is directly processed after the processing scheme is determined, and the power failure time of the high-voltage circuit breaker is reduced by accurately positioning the fault point.
The working principle is as follows: according to the invention, through the design of the structures of the circuit breaker, the master control room, the energy storage detection assembly, the alarm assembly and the like, the master control room can find the energy storage condition of the circuit breaker at the opening/closing position by counting the energy storage signal times and the operation position, count and analyze the distribution condition of the pressing times, and deduce the position of a fault possibly existing in the hydraulic mechanism of the circuit breaker according to a judgment strategy; the invention provides a brand-new high-voltage circuit breaker hydraulic disc spring mechanism early warning device and a hydraulic mechanism frequent-pressing fault point judgment method, which realize the purposes of realizing the accurate judgment of the frequent-pressing fault points from the previous manual early warning to the automatic early warning, directly determining the direction of an overhaul scheme, improving the operation efficiency and reducing the power failure time.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. High-voltage circuit breaker hydraulic pressure dish spring mechanism early warning device, including circuit breaker, master control room, energy storage determine module and warning subassembly, its characterized in that:
the breaker comprises a hydraulic disc spring mechanism, a brake opening position, a brake closing position and a high-pressure cylinder;
the energy storage detection assembly is used for counting the energy storage signal times and the operation positions of the circuit breaker, wherein the operation positions are the opening position and the closing position of the circuit breaker, and the energy storage signal times comprise the energy storage signal times of the circuit breaker at the opening position and the energy storage signal times of the circuit breaker at the closing position;
the main control room is used for analyzing the detection result of the energy storage detection assembly, so that the energy storage conditions of the breaker at the opening position and the closing position are found, the distribution condition of the pressing times is counted and analyzed, and the position where a fault possibly exists in the breaker hydraulic mechanism is deduced according to a judgment strategy;
the alarm assembly comprises an alarm judging unit and an emergency power-off unit; the alarm judging unit is used for judging the form of the alarm signal received by the alarm assembly so as to select different alarm modes; the emergency power-off unit is used for sending an application signal to the main control room when the alarm judging unit sends out an emergency alarm so as to carry out emergency power-off on the circuit breaker;
the method for judging the fault point frequently pressed by the hydraulic disc spring mechanism of the circuit breaker further comprises the following specific steps:
s1, detecting the energy storage times and the operation times of the hydraulic disc spring mechanism of the circuit breaker, and if the energy storage times of the hydraulic mechanism are abnormal, alarming through an alarming assembly;
s2, detecting the energy storage times and the operation times of the circuit breaker, and detecting the opening and closing positions of the circuit breaker, so that the inner leakage position of the energy storage detection assembly of the circuit breaker is judged according to different pressing conditions of the opening and closing positions;
s3, detecting the pressure of the high-pressure cylinder, confirming the inner leakage position of the energy storage detection assembly according to the opening and closing position, further accurately positioning the fault point of the energy storage detection assembly through the inner leakage position, and simultaneously alarming through the alarm assembly if the pressure of the high-pressure cylinder is abnormal;
and S4, determining a processing scheme through the fault point of the energy storage detection assembly accurately positioned, and processing the problem of the fault point.
2. The early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker according to claim 1, characterized in that: the alarm assembly further comprises an acousto-optic alarm assembly and a signal transmission assembly, the acousto-optic alarm assembly is used for carrying out acousto-optic alarm under abnormal conditions, and the signal transmission assembly is used for transmitting alarm signals of the alarm judgment unit and the emergency power-off unit.
3. The early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker according to claim 1, characterized in that: the different alarm modes of the alarm assembly comprise sound-light alarm, power failure application and emergency power failure application, the master control room judges the signals of the power failure application and the emergency power failure application of the alarm assembly, and whether the circuit breaker is powered off or not is selected.
4. The early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker according to claim 1, characterized in that: the high-pressure cylinder is provided with a pressure sensing assembly for detecting the pressure of the high-pressure cylinder, and the pressure sensing assembly is connected to the alarm assembly and used for directly alarming when the pressure of the high-pressure cylinder of the circuit breaker is abnormal.
5. The early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker according to claim 1, characterized in that: in step S1, the method of determining that the energy storage frequency of the hydraulic mechanism is abnormal is:
a1, the energy storage times of the breaker hydraulic mechanism exceed 6 times per day, and the alarm component gives an audible and visual alarm;
a2, the energy storage times of the breaker hydraulic mechanism exceed 10 times per day, and the alarm assembly applies for power failure in advance;
a3, the energy storage times of the breaker hydraulic mechanism exceed 10 minutes and 1 time, and the alarm component directly applies for emergency power failure.
6. The early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker according to claim 1, characterized in that: in step S2, the different pressing conditions of the opening position and the closing position include pressing of the opening position, and simultaneous pressing of the closing position and the opening and closing position.
7. The early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker according to claim 1, characterized in that: in step S3, if no abnormality occurs in the different pressing conditions of the opening position and the closing position, the fault point of the circuit breaker is located to the high-pressure cylinder after the pressure of the high-pressure cylinder is detected.
8. The early warning device of the hydraulic disc spring mechanism of the high-voltage circuit breaker according to claim 1, characterized in that: in step S4, the pressing position of the switching position or the closing position is directly processed after the processing scheme is determined, and the power failure time of the high-voltage circuit breaker is reduced by accurately positioning the fault point.
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| CN206517152U (en) * | 2016-12-06 | 2017-09-22 | 山东中实易通集团有限公司 | A kind of breaker control system |
| CN107816934A (en) * | 2017-12-04 | 2018-03-20 | 中国南方电网有限责任公司超高压输电公司昆明局 | A kind of breaker hydraulic disk spring mechanism disc spring decrement self-operated measuring unit |
| CN108054058A (en) * | 2018-01-11 | 2018-05-18 | 山东钢铁股份有限公司 | The control observation circuit of breaker spring energy storage |
| CN108548623A (en) * | 2018-03-27 | 2018-09-18 | 北京惟鑫航达科技有限公司 | A method of on-line monitoring high-voltage breaker mechanism spring force value |
| CN109884521A (en) * | 2019-03-28 | 2019-06-14 | 山东钢铁股份有限公司 | A kind of circuit-breaker switching on-off control loop template monitoring, alarming circuit |
| CN110207977A (en) * | 2019-04-16 | 2019-09-06 | 平高集团有限公司 | A kind of test method of the storage transmission system for disc spring hydraulic mechanism |
| CN110425197A (en) * | 2019-08-20 | 2019-11-08 | 中国南方电网有限责任公司超高压输电公司昆明局 | Hydraulic Mechanism of Circuit-breaker energy-storage module detection device |
| CN110346717A (en) * | 2019-08-28 | 2019-10-18 | 杨启蓓 | A kind of artificial intelligence high-voltage circuitbreaker on-line monitoring system and method |
| CN110752669A (en) * | 2019-10-29 | 2020-02-04 | 国网湖南省电力有限公司 | Circuit breaker energy storage spring abnormal state evaluation system |
| CN110988665A (en) * | 2019-12-01 | 2020-04-10 | 国网辽宁省电力有限公司锦州供电公司 | Abnormal alarm method for closing function of spring type circuit breaker |
| CN110988669A (en) * | 2019-12-24 | 2020-04-10 | 山东钢铁股份有限公司 | Fault detection method and device for high-voltage circuit breaker |
| CN111398800A (en) * | 2020-03-18 | 2020-07-10 | 山东钢铁股份有限公司 | Circuit breaker fault finding method |
| CN111679653A (en) * | 2020-06-15 | 2020-09-18 | 中国南方电网有限责任公司超高压输电公司昆明局 | Intelligent fault recording device and direct-current field control loop fault positioning method |
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