CN116068388B - Operating mechanism data acquisition system and method - Google Patents

Abstract

The invention discloses a data acquisition system and a data acquisition method of an operating mechanism, wherein the system comprises an alternating current power supply loop unit, a data acquisition loop unit, a driving loop unit and a data processing and displaying unit; the output end of the alternating current power supply loop unit is respectively connected with the data acquisition loop unit, the driving loop unit and the data processing and displaying unit; the data acquisition loop unit is respectively connected with the tested operating mechanism and the data processing and displaying unit; the driving circuit unit is connected with the tested operating mechanism and the data processing and displaying unit. The invention can collect and measure parameters such as opening and closing control current signals, opening and closing coil current signals, energy storage voltage signals, contact displacement signals and the like of various operating mechanisms, realizes collection of multi-characteristic parameter fusion data, and solves the problem that the research and test of the traditional operating mechanism can not fuse the automatic control of multiple characteristic parameters at the same time.

Description

Operating mechanism data acquisition system and method

Technical Field

The invention belongs to the technical field of data acquisition of operating mechanisms of circuit breakers, and particularly relates to a generalized data acquisition system and method for operating mechanisms for fusing multiple characteristic parameters of a vacuum circuit breaker.

Background

Along with the continuous improvement of the intelligent requirements in the power supply field, the technologies of state monitoring, fault diagnosis, risk prediction, health assessment and the like become important industrial research points, and the accumulation of a large amount of raw data and the comprehensive analysis of multi-parameter data are the basis and key of the technical core. According to the existing test mode and test instrument, under the background that a large amount of experimental data is needed, the manual summary data fusion is not attractive, and the requirement of multi-parameter data comprehensive analysis cannot be met by single test content.

At present, the test of the operating mechanism of the vacuum circuit breaker mainly depends on mechanical characteristic test and single test mainly based on an oscilloscope, mechanical characteristic parameters of the operating mechanism are collected mainly based on manual operation mechanical characteristic test, current and voltage parameters of different test items are respectively collected by utilizing the oscilloscope to match with a current or voltage sensor, test data are recorded and integrated manually, and then overall comprehensive analysis is carried out.

At present, the test and research of an operating mechanism still mainly depend on a manual operation mode and personnel test experience, only a single test mainly based on a mechanical characteristic test can be completed, the multi-parameter all-dimensional fusion comparison analysis of the operating current and voltage state, the energy storage state, the power supply state, the mechanical characteristic state and the like of a coil cannot be completely fused, the obtained data are numerical final state results after filtering of various algorithms, and high-quality dynamic holographic original data cannot be obtained; in addition, different testing contents need to be used with different testing instruments, testing methods and wiring, the requirement on the capability of testers is high, the labor cost and the time cost of research work are increased intangibly, the workload is large, the working efficiency is low, the comparison analysis difficulty is high, the error rate is high, the safety is low, and the current intelligent development requirement cannot be met; meanwhile, due to manual operation, the recording and the integrated storage of the data still adopt a manual input mode, so that the working efficiency is greatly reduced, and the human factor risk is increased.

Disclosure of Invention

The invention aims to provide an operating mechanism data acquisition system and method, which are used for solving the problems that a traditional operating mechanism research test cannot be used for simultaneously fusing a plurality of characteristic parameters, and the problems of large test workload, low working efficiency, high error rate and low safety are solved.

The invention solves the technical problems by the following technical scheme: an operating mechanism data acquisition system is applied to a vacuum circuit breaker, and comprises an alternating current power supply loop unit, a data acquisition loop unit, a driving loop unit and a data processing and displaying unit; the output end of the alternating current power supply loop unit is respectively connected with the data acquisition loop unit, the driving loop unit and the data processing and displaying unit; the data acquisition loop unit is respectively connected with the tested operating mechanism and the data processing and displaying unit; the driving loop unit is respectively connected with the tested operating mechanism and the data processing and displaying unit;

the alternating current power supply loop unit is configured to provide alternating current power supply for the data acquisition loop unit, the driving loop unit and the data processing and displaying unit;

the data acquisition loop unit is configured to acquire a contact state signal of the tested breaker, and acquire an opening and closing control current signal of the tested operating mechanism, an opening and closing coil current signal of the tested operating mechanism, an energy storage voltage signal of the tested operating mechanism and a contact displacement signal under a control instruction of the data processing and displaying unit;

The driving circuit unit is configured to provide power for the detected operating mechanism and send a closing control instruction or a separating control instruction to the detected operating mechanism so as to drive the detected operating mechanism to execute corresponding actions;

the data processing and displaying unit is configured to judge that the tested breaker is in a switching-off state or a switching-on state according to the contact state signals acquired by the data acquisition loop unit, and generate opposite control instructions.

Further, the ac power supply circuit unit includes a breaker QF, a contactor KMC1, a rotary switch ZH1, and an indicator lamp JD; the two ends of a main contact QF1 of the breaker QF are respectively connected with a live wire L of external alternating current and a first end of a normally open contact KMC1-1 of a contactor KMC1, and the main contact QF1 is also connected with a first end of a rotary switch ZH 1; one end of a main contact QF2 of the breaker QF is connected with a zero line N of external alternating current, the other end of the main contact QF is respectively connected with a first end of a normally open contact KMC1-2 of a contactor KMC1 and a first end of a coil of the contactor KMC1, and a second end of the coil of the contactor KMC1 is connected with a second end of a rotary switch ZH 1; the branch circuit formed by connecting the indicator lamp JD and the normally open contacts KMC1-3 of the contactor KMC1 in series is connected in parallel with the two ends of the coil of the contactor KMC 1;

The second end of the normally open contact KMC1-1 of the contactor KMC1 and the second end of the normally open contact KMC1-2 serve as output ends of the alternating current power supply loop unit.

Further, the data acquisition loop unit comprises a data acquisition module, an I/O module, sampling resistors R1-R5, current sensors L1-L4, low-voltage direct current switching power supplies Z15 and Z24, a displacement sensor ZW and a voltage sensor DY; the input ends of the low-voltage direct-current switch power supplies Z15 and Z24 are connected with the output end of the alternating-current power supply loop unit, and the output end of the low-voltage direct-current switch power supply Z15 is respectively connected with the power supply ends of the current sensors L1-L4 and the displacement sensor ZW; the output end of the low-voltage direct-current switching power supply Z24 is connected with the power end of the voltage sensor DY; the data acquisition module and the I/O module are respectively connected with the data processing and display unit;

the current sensor L1 is arranged in a closing control loop of the detected operating mechanism, the output end of the current sensor L1 is connected with the input end of the data acquisition module through a sampling resistor R5, and the current sensor L1 is used for acquiring a closing control current signal of the detected operating mechanism; the current sensor L2 is arranged in a brake-separating control loop of the detected operating mechanism, the output end of the current sensor L2 is connected with the input end of the data acquisition module through a sampling resistor R4, and the current sensor L2 is used for acquiring a brake-separating control current signal of the detected operating mechanism;

The current sensor L3 is arranged in a closing coil loop of the detected operating mechanism, the output end of the current sensor L3 is connected with the input end of the data acquisition module through the sampling resistor R3, and the current sensor L3 is used for acquiring a closing coil current signal of the detected operating mechanism; the current sensor L4 is arranged in a brake-separating coil loop of the detected operating mechanism, the output end of the current sensor L4 is connected with the input end of the data acquisition module through a sampling resistor R2, and the current sensor L4 is used for acquiring a brake-separating coil current signal of the detected operating mechanism;

the displacement sensor ZW is arranged in a transmission path of the detected operating mechanism, the output end of the displacement sensor ZW is connected with the input end of the data acquisition module through the sampling resistor R1, and the displacement sensor ZW is used for acquiring a contact displacement signal of the detected circuit breaker;

the voltage sensor DY is arranged in the energy storage loop of the detected operating mechanism, the output end of the voltage sensor DY is connected with the input end of the data acquisition module, and the voltage sensor DY is used for acquiring an energy storage voltage signal of the operating mechanism;

the I/O module is used for collecting contact state signals of the tested circuit breaker and sending the collected contact state signals to the data processing and display unit.

Further, the power end of the current sensor L3 is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 port and the 2 port of the sampling switching aviation plug CZ1, and the output end of the current sensor L3 is connected with the input end of the data acquisition module through the 3 port of the sampling switching aviation plug CZ1 and the sampling resistor R3;

the power end of the current sensor L4 is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 port and the 2 port of the sampling switching aviation plug CZ2, and the output end of the current sensor L4 is connected with the input end of the data acquisition module through the 3 port of the sampling switching aviation plug CZ2 through the sampling resistor R2;

the power end of the displacement sensor ZW is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 port and the 2 port of the sampling switching aviation plug CZ3, and the output end of the displacement sensor ZW is connected with the input end of the data acquisition module through the 3 port of the sampling switching aviation plug CZ3 through a sampling resistor R1;

the acquisition end of the voltage sensor DY is connected with an energy storage loop of the tested operating mechanism through a 1 port and a 2 port of the sampling switching aviation plug CZ4 and a control switching aviation plug HT in the driving loop unit.

Further, when the detected operating mechanism is a permanent magnet operating mechanism, the voltage sensor DY is arranged in an energy storage capacitor loop of the detected operating mechanism; when the detected operating mechanism is a spring operating mechanism, the voltage sensor DY is arranged in an energy storage power supply loop of the detected operating mechanism.

Further, the driving circuit unit comprises a high-voltage direct-current power supply HM, a high-voltage direct-current power supply KM, a power adapter DP, an embedded control module QK, a control switching aviation plug HT, a power supply and discharge circuit, a switching knob KK and a rotary switch ZH2; the input ends of the high-voltage direct-current power supply HM, the high-voltage direct-current power supply KM and the power adapter DP are all connected with the output end of the alternating-current power supply loop unit; the high-voltage direct-current power supply HM, the high-voltage direct-current power supply KM and the embedded control module QK are in communication connection with the data processing and display unit; the output end of the high-voltage direct-current power supply HM is connected with a normally open contact KMC2-1/KMC2-2 of a contactor KMC2 in the power supply and discharge loop, the output end of the high-voltage direct-current power supply KM is connected with a normally open contact KMC3-1/KMC3-2 of a contactor KMC3 in the power supply and discharge loop, and the output end of the power adapter DP is connected with the power end of the embedded control module QK;

one end K21/K31 of a control contact K2/K3 of the embedded control module QK, a normally open contact KMC2-2 of a contactor KMC2 in the power supply and discharge loop and a normally open contact KMC3-2 of the contactor KMC3 output a closing control instruction or a separating brake control instruction through control switching aviation plug HT; the normally open contact KMC2-1 of the contactor KMC2 and the normally closed contact KMC4-3 of the contactor KMC4 in the power supply and discharge loop charge the energy storage power supply by controlling the switching aviation plug HT; the normally open contact KMC4-1 of the contactor KMC4 is also connected with the energy storage loop through the control switching aviation plug HT;

One ends of two normally closed switches of the rotary switch ZH2 are respectively connected with the other ends K20/K30 of the control contacts K2/K3 of the embedded control module QK, the other ends of the two normally closed switches of the rotary switch ZH2 are respectively connected with a normally open contact KMC2-1 of a contactor KMC2 and a normally open contact KMC3-1 of a contactor KMC3 in the power supply and discharge loop, one ends of the two normally open switches of the rotary switch ZH2 are connected with one ends K21/K31 of the control contacts K2/K3 of the embedded control module QK through a switching-on and switching-off knob KK, and the other ends of the two normally open switches of the rotary switch ZH2 are respectively connected with a normally open contact KMC2-1 of the contactor KMC2 and a normally open contact KMC3-1 of the contactor KMC3 in the power supply and discharge loop.

Further, the power supply and discharge loop comprises an embedded control module opening point QK-K1, a rotary switch ZH3, a button SB, a contactor KMC2, KMC3, KMC4, an indicator light ZD and an energy release resistor Rf; the embedded control module opening point QK-K1 is connected with the button SB in parallel and then connected with the coil of the contactor KMC4 in series to form a first branch, one normally open switch of the rotary switch ZH3 is connected with the coil of the contactor KMC2 in series to form a second branch, the other normally open switch of the rotary switch ZH3 is connected with the coil of the contactor KMC3 in series to form a third branch, and the normally open contact KMC3-3 of the contactor KMC3 is connected with the indicator lamp ZD in series to form a fourth branch; the first branch, the second branch, the third branch and the fourth branch are connected in parallel and then connected with the output end of the alternating current power supply loop unit; the normally-closed contact KMC4-3 of the contactor KMC4 is connected with a normally-open contact KMC2-2 of the contactor KMC2, and the energy release resistor Rf is connected with a normally-closed contact KMC4-1 of the contactor KMC 4.

Further, the data processing and displaying unit comprises a UPS power supply, a display and an industrial personal computer host; the input end of the UPS is connected with the output end of the alternating current power supply loop unit, and the output end of the UPS is connected with the power ends of the display and the industrial personal computer host; the industrial personal computer host is connected with the display.

Based on the same conception, the invention also provides a control method of the operating mechanism data acquisition system, which comprises the following steps:

during testing, the I/O module of the data acquisition loop unit acquires a contact state signal of the tested breaker;

the data processing and displaying unit judges that the tested breaker is in a switching-off state or a switching-on state according to the contact state signals acquired by the I/O module, and generates a switching-on control instruction or a switching-off control instruction;

the switching-on control loop of the detected operating mechanism is controlled to be switched on according to the switching-on control instruction, or the switching-off control loop of the detected operating mechanism is controlled to be switched on according to the switching-off control instruction;

the data acquisition loop unit acquires a closing control current signal or a separating brake control current signal, and further acquires a closing coil current signal or a separating brake coil current signal, an energy storage voltage signal and a contact displacement signal.

Advantageous effects

Compared with the prior art, the invention has the advantages that:

according to the operating mechanism data acquisition system and method provided by the invention, parameters such as opening and closing control current signals, opening and closing coil current signals, energy storage voltage signals, contact displacement signals and the like of various operating mechanisms can be acquired and measured by utilizing the data acquisition loop unit under the control of the data processing and display unit, so that acquisition of multi-characteristic parameter fusion data is realized, the problem that a traditional operating mechanism research test cannot fuse multiple characteristic parameters simultaneously in an automatic control manner is solved, and the operating mechanism data acquisition system and method can be suitable for various operating mechanisms such as springs, permanent magnets and the like; the invention greatly reduces the test workload, improves the working efficiency, reduces the error rate and improves the test safety.

The multi-characteristic parameter data collected by the system are compared and applied and analyzed, so that the human factor risk in the test process is reduced, the test safety is improved, the time and labor cost are reduced, the efficiency is improved, the technical development of the vacuum circuit breaker operating mechanism test method is promoted, a data foundation is laid for the research and development of various operating mechanisms and circuit breakers, and an effective data support is provided for the intelligent electric power system and the state monitoring technical development of electric power equipment.

Drawings

In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawing in the description below is only one embodiment of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of an operating mechanism data acquisition system in an embodiment of the invention;

FIG. 2 is a schematic diagram of an AC power circuit unit in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram of a circuit of a data acquisition loop unit in an embodiment of the invention;

FIG. 4 is a schematic diagram of a driving circuit unit circuit in an embodiment of the invention;

FIG. 5 is a schematic diagram of a data processing and display unit circuit in accordance with an embodiment of the present invention;

FIG. 6 is a power-on flow chart of an operating mechanism data acquisition system in an embodiment of the invention;

FIG. 7 is a graph of characteristic parameters during a closing operation in an embodiment of the present invention;

FIG. 8 is a graph of characteristic parameters during a brake release operation in accordance with an embodiment of the present invention;

FIG. 9 is a power down flow chart of the operating mechanism data acquisition system in an embodiment of the invention.

Detailed Description

The following description of the embodiments of the present invention will be made more apparent and fully by reference to the accompanying drawings, in which it is shown, however, only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical scheme of the present application is described in detail below with specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

The tested breaker in the invention is a vacuum breaker.

As shown in fig. 1, the operating mechanism data acquisition system applied to a vacuum circuit breaker provided by the embodiment of the invention comprises an alternating current power supply loop unit, a data acquisition loop unit, a driving loop unit and a data processing and displaying unit; the output end of the alternating current power supply loop unit is respectively connected with the data acquisition loop unit, the driving loop unit and the data processing and display unit; the data acquisition loop unit is respectively connected with the tested operating mechanism and the data processing and displaying unit; the driving loop unit is connected with the tested operating mechanism and the data processing and displaying unit.

The alternating current power supply loop unit is used for providing alternating current power supply AC220V for the data acquisition loop unit, the driving loop unit and the data processing and displaying unit. In one embodiment of the present invention, as shown in fig. 2, the ac power supply circuit unit includes a circuit breaker QF, a contactor KMC1, a rotary switch ZH1, and an indicator lamp JD; the two ends of a main contact QF1 of the breaker QF are respectively connected with a live wire L of external alternating current and a first end of a normally open contact KMC1-1 of a contactor KMC1, and the main contact QF1 is also connected with a first end of a rotary switch ZH 1; one end of a main contact QF2 of the breaker QF is connected with a zero line N of external alternating current, the other end of the main contact QF is respectively connected with a first end of a normally open contact KMC1-2 of a contactor KMC1 and a first end of a coil of the contactor KMC1, and a second end of the coil of the contactor KMC1 is connected with a second end of a rotary switch ZH 1; the branch circuit formed by the serial connection of the indicator lamp JD and the normally open contacts KMC1-3 of the contactor KMC1 is connected in parallel with the two ends of the coil of the contactor KMC 1. The second end of the normally open contact KMC1-1 of the contactor KMC1 and the second end of the normally open contact KMC1-2 serve as output ends of the alternating current power supply loop unit, and the data acquisition loop unit, the driving loop unit and the data processing and display unit are provided with alternating current power supply.

The specific working process of the alternating current power supply loop unit is as follows: after the breaker QF is switched on, the power input control unit starts power transmission, the main contacts QF1 and QF2 of the breaker QF are closed, if the rotary switch ZH1 is rotated to a closed state at the moment, the coil of the contactor KMC1 is powered on, normally open contacts KMC1-1, KMC1-2 and KMC1-3 of the contactor are closed, an indicator lamp JD is powered on normally and indicates that an alternating current power supply is output, and the alternating current power supply frequently opens the contacts KMC1-1 and KMC1-2 to provide working power supplies for the UPS power supply, the high-voltage direct current power supplies HM and KM, the power adapter DP, the low-voltage direct current switching power supplies Z15 and Z24, a power supply and discharge loop and the like.

The data acquisition loop unit is used for acquiring a contact state signal of the tested breaker, and acquiring an opening and closing control current signal of the tested operating mechanism, an opening and closing coil current signal of the tested operating mechanism, an energy storage voltage signal of the tested operating mechanism and a contact displacement signal under a control instruction of the data processing and displaying unit.

In a specific embodiment of the present invention, as shown in fig. 3, the data acquisition loop unit includes a data acquisition module, an I/O module, sampling resistors R1 to R5, current sensors L1 to L4, low-voltage dc switching power supplies Z15 and Z24, sampling switching aviation plug CZ1 to CZ5, a displacement sensor ZW, and a voltage sensor DY; the input ends of the low-voltage direct-current switch power supplies Z15 and Z24 are connected with the output end of the alternating-current power supply loop unit, and the output end of the low-voltage direct-current switch power supply Z15 is respectively connected with the power supply ends of the current sensors L1-L4 and the displacement sensor ZW to provide working power supplies for the current sensors L1-L4 and the displacement sensor ZW; the output end of the low-voltage direct-current switching power supply Z24 is connected with the power end of the voltage sensor DY to provide a working power supply for the voltage sensor DY; the data acquisition module and the I/O module are respectively connected with the data processing and display unit through RS232 in a communication way.

The current sensor L1 is used for collecting a closing control current signal of the detected operating mechanism. The current sensor L1 is sleeved in a closing control loop of the detected operating mechanism, and the output end of the current sensor L1 is connected with the input end of the data acquisition module through the sampling resistor R5, so that a closing control current signal acquired by the current sensor L1 is fed back to the data acquisition module.

The current sensor L2 is used for collecting a brake-separating control current signal of the detected operating mechanism. The current sensor L2 is sleeved in a brake separating control loop of the detected operating mechanism, and the output end of the current sensor L2 is connected with the input end of the data acquisition module through the sampling resistor R4, so that a brake separating control current signal acquired by the current sensor L2 is fed back to the data acquisition module.

The current sensor L3 is used for collecting a closing coil current signal of the detected operating mechanism. The current sensor L3 is sleeved in a closing coil loop of the detected operating mechanism, and the output end of the current sensor L3 is connected with the input end of the data acquisition module through the sampling resistor R3 by the 3 port of the sampling switching aviation plug CZ1, so that a closing coil current signal acquired by the current sensor L3 is fed back to the data acquisition module. The power end of the current sensor L3 is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 and 2 ports of the sampling switching aviation plug CZ 1.

The current sensor L4 is used for collecting a brake-separating coil current signal of the detected operating mechanism. The current sensor L4 is sleeved on a brake-separating coil loop of the detected operating mechanism, and the output end of the current sensor L4 is connected with the input end of the data acquisition module through a sampling resistor R2 by a 3-port of sampling switching aviation plug CZ2, so that a brake-separating coil current signal acquired by the current sensor L4 is fed back to the data acquisition module. The power end of the current sensor L4 is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 and 2 ports of the sampling switching aviation plug CZ 2.

The displacement sensor ZW is used for collecting contact displacement signals of the tested circuit breaker. The displacement sensor ZW is arranged in a transmission path of the detected operating mechanism, and the output end of the displacement sensor ZW is connected with the input end of the data acquisition module through the sampling resistor R1 by the 3 port of the sampling switching aviation plug CZ3, so that a contact displacement signal acquired by the displacement sensor ZW is fed back to the data acquisition module. The power end of the displacement sensor ZW is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 and 2 ports of the sampling switching aviation plug CZ 3.

The voltage sensor DY is used for collecting energy storage voltage signals of the detected operating mechanism. The voltage sensor DY is arranged in the energy storage loop of the detected operating mechanism, and the output end of the voltage sensor DY is connected with the input end of the data acquisition module, so that an energy storage voltage signal acquired by the voltage sensor DY is fed back to the data acquisition module.

The I/O module is used for collecting the contact state signal of the tested breaker and sending the collected contact state signal to the data processing and display unit.

In the embodiment, the current sensors L1 to L4 are all Hall current sensors; the displacement sensor ZW is a linear displacement sensor or an angular displacement sensor.

When data acquisition is performed, the current sensors L1-L4 and the displacement sensor ZW are provided with working power supplies by the low-voltage direct-current switching power supply Z15, and acquisition parameters are fed back to the data acquisition module after corresponding sampling resistors. The current sensors L3 and L4 are arranged in a switching-on/off coil loop of the tested operating mechanism through sampling switching aviation plugs CZ1 and CZ 2; the displacement sensor ZW is arranged in a transmission path of the tested operating mechanism through sampling switching aviation plug CZ 3; the voltage sensor DY acquisition end is arranged in an energy storage capacitor loop or an energy storage power supply loop of the detected operating mechanism through sampling switching aviation plug CZ4, when the detected operating mechanism is a permanent magnet operating mechanism, the voltage sensor DY acquisition end is arranged in the energy storage capacitor loop, and when the detected operating mechanism is a spring operating mechanism, the voltage sensor DY acquisition end is arranged in the energy storage power supply loop; the contact state signal of the tested breaker is transmitted to the I/O module through the sampling switching aviation plug CZ5, the I/O module converts the collected contact state signal from analog quantity to digital quantity and then transmits the digital quantity to the data acquisition module, and meanwhile, the contact state signal is reported to the industrial personal computer host through the RS232 communication interface.

The driving circuit unit is used for providing power for the tested operating mechanism and giving a closing control instruction or a separating control instruction to the tested operating mechanism under the control instruction of the data processing and displaying unit so as to drive the tested operating mechanism to execute corresponding actions.

In one embodiment of the present invention, as shown in fig. 4, the driving circuit unit includes a high voltage dc power source HM, a high voltage dc power source KM, a power adapter DP, an embedded control module QK, a control switching aviation plug HT, a power supply and discharge circuit, a switching knob KK and a rotary switch ZH2; the input ends of the high-voltage direct-current power supply HM, the high-voltage direct-current power supply KM and the power adapter DP are connected with the output end of the alternating-current power supply loop unit; the high-voltage direct-current power supply HM, the high-voltage direct-current power supply KM and the embedded control module QK are in communication connection with the data processing and display unit through an RS232 interface; the output end HM+/HM of the high-voltage direct-current power supply HM is connected with a normally open contact KMC2-1/KMC2-2 of a contactor KMC2 in a power supply and discharge loop, the output end KM+/KM of the high-voltage direct-current power supply KM is connected with a normally open contact KMC3-1/KMC3-2 of a contactor KMC3 in the power supply and discharge loop, and the output end of the power adapter DP is connected with a power end L/N of an embedded control module QK.

When the driving circuit unit works, the high-voltage direct-current power supply HM is responsible for providing an energy storage power supply and a switching-on power supply of the tested operating mechanism, the high-voltage direct-current power supply KM is responsible for providing a switching-off power supply of the tested operating mechanism, and the power adapter DP provides a working power supply for the embedded control module QK.

One end K21/K31 of a control contact K2/K3 of the embedded control module QK, a normally open contact KMC2-2 of a contactor KMC2 in a supply and discharge loop and a normally open contact KMC3-2 of the contactor KMC3 output a closing control instruction or a separating brake control instruction through controlling a switching aviation plug HT (HT-14/HT-4/HT-30/HT-31) so as to drive a tested operating mechanism to execute closing action or separating brake action. The normally open contact KMC2-1 of the contactor KMC2 and the normally closed contact KMC4-3 of the contactor KMC4 in the power supply and discharge loop charge an energy storage power supply in the energy storage loop through controlling the switching aviation plug HT (HT-10/HT-20); the energy release resistor Rf in the power supply and discharge loop and the normally open contact KMC4-1 of the contactor KMC4 are also connected with the energy storage loop through the control switching aviation plug HT (HT-2/HT-12). Normally, the normally open contact KMC4-1 is disconnected, and the energy storage power supply (such as an energy storage capacitor) is not discharged; when the test is completed or the energy storage voltage needs to be reduced to the test operation voltage requirement value, the normally open contact KMC4-1 is controlled to be closed, and the energy storage capacitor of the tested circuit breaker is discharged through the energy release resistor Rf, so that the purpose of automatically controlling the operation voltage value can be achieved. The starting of the discharge loop can be controlled automatically or manually.

The control contact K2 in the embedded control module QK is controlled to be closed according to a closing control instruction issued by the host computer of the industrial personal computer, a closing control loop of the tested operating mechanism is connected, the control contact K3 in the embedded control module QK is controlled to be closed according to a breaking control instruction, and a breaking control loop of the tested operating mechanism is connected, so that a collecting and breaking control current signal of the current sensor L1/L2 is triggered. According to the control instruction, automatic control of opening and closing operations can be realized through the embedded control module QK.

One end of the two normally closed switches of the rotary switch ZH2 is respectively connected with the other end K20/K30 of the control contact K2/K3 of the embedded control module QK, the other end of the two normally closed switches of the rotary switch ZH2 is respectively connected with the normally open contact KMC2-1 of the contactor KMC2 and the normally open contact KMC3-1 of the contactor KMC3 in the power supply and discharge loop, one end of the two normally open switches of the rotary switch ZH2 is connected with one end K21/K31 of the control contact K2/K3 of the embedded control module QK through a switching-on and switching-off knob KK, and the other end of the two normally open switches of the rotary switch ZH2 is respectively connected with the normally open contact KMC2-1 of the contactor KMC2 and the normally open contact KMC3-1 of the contactor KMC3 in the power supply and discharge loop. The industrial personal computer host judges that the tested breaker is in a switching-off state or a switching-on state according to a contact state signal acquired by the I/O module, displays the contact state on a display, manually controls a normally closed switch of a rotary switch ZH2 to be opened and a normally open switch to be closed when the switching-off state is displayed, rotates a switching-on and switching-off knob KK to a switching-on gear, and switches on a switching-on control loop of the tested operating mechanism; when the switching-on state is displayed, the normally closed switch of the manual control rotary switch ZH2 is opened, the normally open switch is closed, the switching-on and switching-off knob KK is rotated to a switching-off gear, and a switching-off control loop of the tested operating mechanism is switched on, so that a collection and switching-off control current signal is triggered by the current sensor L1/L2. According to the contact state displayed by the display, the manual control of the opening and closing operation can be realized through the opening and closing knob KK and the rotary switch ZH 2.

When the alternating current power supply loop unit is started, the driving loop unit has working conditions, if the rotating switch ZH3 is rotated to a closed state at the moment, the coils of the contactors KMC2 and KMC3 are electrified, normally open contacts KMC2-1, KMC2-2, KMC3-1, KMC3-2 and KMC3-3 are closed, the indicator lamp ZD is electrified and is electrified to indicate that the direct current power supply is output, and then the energy storage power supply is output to a tested operating mechanism through control switching aviation plug HT-10 and HT-20; when the rotary switch ZH2 is positioned at the program-controlled position (the default state of ZH2 in fig. 4), the embedded control modules QK-K2 and QK-K3 can issue opening and closing control instructions to the tested operating mechanism, and the instruction information is sent out from the industrial personal computer host through the communication interface RS 232; when the rotary switch ZH2 is positioned at the manual position (the state after the opening point of ZH2 is closed in fig. 4), the switching-on/off knob KK can give a switching-on/off control instruction to the detected operating mechanism, and the instruction information is sent out by manually controlling the switching-on/off knob KK; the switching-on control instructions are output to the tested operating mechanism through the control switching aviation plug HT-4 and HT-14, the switching-off control instructions are output to the tested operating mechanism through the control switching aviation plug HT-30 and HT-31, and in addition, the control switching aviation plug HT-2 and HT-12 are energy storage power supply sampling input interfaces.

In one embodiment of the invention, the power supply and discharge loop comprises an embedded control module starting point QK-K1, a rotary switch ZH3, a button SB, contactors KMC2, KMC3, KMC4, an indicator lamp ZD and an energy release resistor Rf; the embedded control module opening point QK-K1 is connected in parallel with the button SB and then connected in series with the coil of the contactor KMC4 to form a first branch, one normally open switch of the rotary switch ZH3 is connected in series with the coil of the contactor KMC2 to form a second branch, the other normally open switch of the rotary switch ZH3 is connected in series with the coil of the contactor KMC3 to form a third branch, and the normally open contact KMC3-3 of the contactor KMC3 is connected in series with the indicator lamp ZD to form a fourth branch; the first branch, the second branch, the third branch and the fourth branch are connected in parallel and then connected with the output end of the alternating current power supply loop unit; the normally-closed contact KMC4-3 of the contactor KMC4 is connected with the normally-open contact KMC2-2 of the contactor KMC2, and the energy release resistor Rf is connected with the normally-closed contact KMC4-1 of the contactor KMC 4.

The power supply and discharge loop is responsible for controlling the on-off of the high-voltage direct current power supplies HM and KM for supplying power to the tested operating mechanism, the embedded control module starting point QK-K1, the button SB, the contactor KMC4 and the energy release resistor Rf belong to the discharge loop and are used for energy release and discharge of the energy storage capacitor of the permanent magnet operating mechanism, and the energy release and discharge device can be used for program-controlled discharge through the embedded control module starting point QK-K1 and manual discharge through the button SB. When the program control discharges, an electric control command is issued through the host computer of the industrial personal computer, the RS232 communication interface gives an embedded control module QK, after the opening point QK-K1 is closed, the contactor KMC4 coil is electrified, and the normally open contact KMC4-1 and the normally closed contact KMC4-3 are opened to form a protection interlock for supplying and discharging, so that the power supply and discharging operations cannot be started simultaneously. When the contact KMC4-1 is closed, the discharge loop is closed and started, and the energy release resistor Rf discharges energy storage capacitors of the operating mechanism by controlling the switching aviation interfaces HT-2 and HT-12; meanwhile, when the contact KMC4-3 is opened, the control switching aviation plug HT-20 is switched off to output a loop to the tested operating mechanism, and power supply to the tested operating mechanism is stopped.

The data processing and displaying unit is used for judging that the tested circuit breaker is in a switching-off state or a switching-on state according to the contact state signals acquired by the data acquisition loop unit, generating opposite control instructions, namely generating switching-on control instructions when the circuit breaker is in the switching-off state, generating switching-off control instructions when the circuit breaker is in the switching-on state, and enabling the operating mechanism to conduct switching-on operation only when the operating mechanism is in the switching-on state.

In one embodiment of the present invention, as shown in fig. 5, the data processing and displaying unit includes a display and an industrial personal computer host; the industrial personal computer host is connected with the display; the display displays a program operation interface and acquires data parameters and map waveforms; the industrial personal computer host is responsible for running a system program to send out control instructions, communication instructions, data acquisition and storage instructions, operation and display instructions and the like, and storing data.

The data processing and displaying unit further comprises a UPS power supply, the input end of the UPS power supply is connected with the output end of the alternating current power supply loop unit, the output end of the UPS power supply is connected with the display and the power end of the industrial computer host, the UPS power supply provides uninterrupted power supply for the industrial computer host and the display, and the safety of data operation and storage is guaranteed.

The working process of the operating mechanism data acquisition system comprises the following steps:

firstly, confirming that the system and the tested circuit breaker are free of other barriers in the range, and ensuring that the surrounding environment is safe and suitable for test; secondly, after the test line and the sensor are confirmed to be installed correctly, the power line is connected, the power master switch is started, the alternating current power knob is started, and at the moment, the system alternating current power indicator lamp JD is turned on to represent that an alternating current power loop unit in the system works normally; then the UPS power supply, the energy storage direct current power supply and the control direct current power supply are sequentially turned on, at the moment, the industrial personal computer and the display are started according to actual test requirements, and meanwhile, the output parameters of the direct current power supply are adjusted and set; and finally, starting a direct-current power supply knob, lighting a system direct-current power supply indicator lamp ZD to represent normal work of a direct-current power supply in the system, then starting an energy storage direct-current power supply and controlling the output of the direct-current power supply respectively, observing that the energy storage of a tested breaker and the output of the direct-current power supply are normal, and carrying out a test, and if abnormal conditions occur, immediately carrying out power-off inspection. Fig. 6 shows a system power-on flow chart.

The whole system takes the control instruction issuing time as the starting point of the wave recording, the wave recording time length is constrained by the fixed time length acquired by the software program or the number of the acquired data points by triggering the acquisition system by utilizing the switching-on and switching-off control current of the tested breaker, so that the wave recording is automatically stopped under the constraint condition that the wave recording reaches the stop signal.

When the AC power supply loop unit starts to output an AC power supply, the system enters a working state, a contact state signal of a tested breaker is fed back to the I/O module and the data acquisition module through the switching aviation plug CZ5, and the I/O module converts an analog quantity signal into a digital quantity signal and sends the digital quantity signal to the host computer of the industrial personal computer so as to judge the contact state (switching on; if the control mode is program control (ZH 2 is the default state of fig. 4), the host computer of the industrial personal computer sends a brake opening or closing control command to the embedded control module QK through the communication interface, the QK closes the corresponding control contact (K2 or K3) according to the control requirement (brake opening or closing) to switch on the brake opening and closing control loop, the control command is sent to the tested breaker control system through the current sensor L1 (collecting brake opening control current signal) and the current sensor L2 (collecting brake opening control current signal) to generate corresponding loop current, and at the moment, the L1 and the L2 obtain corresponding control current characteristic parameters and feed back to the data acquisition module, and meanwhile, the data acquisition module is triggered to start collecting various other characteristic parameters.

Under the control of a control instruction, starting a controlled operating mechanism driving program, and enabling an operating mechanism driving coil to be electrified, wherein at the moment, L3 and L4 acquire current characteristic parameters of an opening and closing coil of a detected operating mechanism and feed the current characteristic parameters back to a data acquisition module; meanwhile, the energy storage loop of the tested circuit breaker drives and discharges the opening and closing coil of the operating mechanism, and energy is required to be stored again, so that the energy storage voltage can change, and the voltage sensor DY obtains the corresponding energy storage voltage characteristic parameter and feeds the corresponding energy storage voltage characteristic parameter back to the data acquisition module.

When the opening and closing coil of the detected operating mechanism is started due to electricity, the mechanical transmission part of the operating mechanism is driven to complete the action required by the control instruction (namely, the closing action or the opening action), at the moment, the displacement sensor ZW obtains the displacement characteristic quantity due to the position change of the transmission part of the operating mechanism and feeds back the displacement characteristic quantity to the data acquisition module, and the displacement sensor ZW can use an angular displacement sensor or a linear displacement sensor according to the actual application condition and the installation position.

The characteristic quantity curves under the switching-on operation are shown in fig. 7, the characteristic quantity curves under the switching-off operation are shown in fig. 8, and based on the collected basic characteristic parameters and time parameters (namely, the switching-on and switching-off control current signals, the switching-on and switching-off coil current signals, the stored energy voltage signals and the contact displacement signals), corresponding values of other parameters, such as total stroke, overstroke, switching-on and switching-off speed, switching-off and switching-on time, switching-on synchronization, switching-on bounce, switching-off rebound and the like, are obtained according to corresponding characteristic value algorithms and edge algorithms.

If the control mode is manual control, ZH2 switching point state conversion, control command then by close break-brake knob KK manual transmission, the switching-on operation is rotatory KK to the closing gear, break-brake operation is rotatory KK to the break-brake gear can, follow-up data acquisition triggers, data acquisition process is unanimous with program control mode.

The power-off process is the reverse of the power-on process, as shown in fig. 9.

The invention can simultaneously measure and comprehensively fuse, compare and analyze multiple parameters such as the coil operation current and voltage state, the energy storage state, the power supply state, the mechanical property and the like of various operating mechanisms, and can store and call analysis data and original data; the invention is universal for various operating mechanisms, can be suitable for various operating mechanisms, can cover spring operating mechanisms and permanent magnet operating mechanisms, and can meet various types of permanent magnet operating mechanisms, such as single-coil energy-storage type permanent magnet operating mechanisms, single-coil non-energy-storage type permanent magnet operating mechanisms, double-coil non-energy-storage type permanent magnet operating mechanisms and the like; the invention can realize networking communication with other components or equipment with communication function, complete data transmission, realize signal remote transmission and remote control function, the communication interface can be wired or wireless, and the wired communication interface can be RS232 or RS485 or Ethernet; the industrial personal computer host can receive external keyboard signal input and also can receive touch screen signal input; according to the invention, different sensors can be installed according to application scenes, and the test and characteristic parameter extraction of the circuit breaker can be extended and expanded to the test and characteristic parameter extraction of leakage current, mechanical life, loop resistance, temperature rise, partial discharge and the like.

The invention realizes the comprehensive, device integrated, program automatic and control one-key design of the test process of the vacuum circuit breaker by means of the collection of the industrial personal computer and circuit control and various original state quantity and the analysis and calculation of the characteristic value. The intelligent device can pertinently carry out parameter matching setting, power output scheduling, operation time sequence control, data acquisition, storage, comparison analysis, fault logic judgment, alarm and the like on various types of tests, and provides important intelligent device support and effective data basis for test and deep research of a vacuum circuit breaker and an operating mechanism.

Through unified definition of data format and communication protocol, data management is standardized and normalized, and data is effectively collected, stored, processed and applied by utilizing hardware and software technologies such as a computer, a high-precision sensor and the like from aspects of source data, main data, data standard, data quality, data processing, data application authority and the like, so that a test database of the whole life cycle of the circuit breaker product is built, and a certain level of data base and application value are provided for research and analysis of the circuit breaker product in various industry fields.

According to the related test content and test data acquired by test projects, a comprehensive visual angle plane graph constructed by multidimensional variables such as state quantity, displacement quantity, time quantity, speed quantity, current voltage variation quantity and the like is formed through calculation and processing of a system program, the relationship and chain reaction among the variation quantities of the circuit breaker are assisted to be researched, and weak links and hidden danger factors of the whole operation process of the circuit breaker are researched by comparing the relationship and chain reaction with graph reference fields of a planned standard range, so that objective support basis is provided for a full life cycle health management and monitoring system of the circuit breaker.

Based on the same conception, the embodiment of the invention also provides a control method of the operating mechanism data acquisition system, which comprises the following steps:

step S101: during testing, the I/O module of the data acquisition loop unit acquires a contact state signal of the tested breaker;

step S102: the data processing and displaying unit judges that the tested breaker is in a switching-off state or a switching-on state according to the contact state signals collected by the I/O module, and generates a switching-on control instruction or a switching-off control instruction;

step S103: the switching-on control loop of the detected operating mechanism is controlled to be switched on according to the switching-on control instruction, or the switching-off control loop of the detected operating mechanism is controlled to be switched on according to the switching-off control instruction;

step S104: the data acquisition loop unit acquires a closing control current signal or a separating control current signal, and further acquires a closing coil current signal or a separating coil current signal, an energy storage voltage signal and a contact displacement signal.

The method can realize the control generalization of the operation mechanism test, test integration, process integration, program automation and operation one-key multi-characteristic parameter fusion data acquisition, and carry out comprehensive comparison analysis on the current and voltage states, the energy storage states, the power supply states and the mechanical characteristic states of the operation mechanism to obtain high-quality dynamic holographic original data, thereby reducing the time cost, improving the labor efficiency, promoting the technical progress of the breaker operation mechanism testing method, and providing effective data support for the research of various types of operation mechanisms and breakers and the development of the intelligent and power equipment state monitoring technology of the power system.

The foregoing disclosure is merely illustrative of specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art will readily recognize that changes and modifications are possible within the scope of the present invention.

Claims (9)

1. An operating device data acquisition system is applied to vacuum circuit breaker, its characterized in that: the system comprises an alternating current power supply loop unit, a data acquisition loop unit, a driving loop unit and a data processing and displaying unit; the output end of the alternating current power supply loop unit is respectively connected with the data acquisition loop unit, the driving loop unit and the data processing and displaying unit; the data acquisition loop unit is respectively connected with the tested operating mechanism and the data processing and displaying unit; the driving loop unit is respectively connected with the tested operating mechanism and the data processing and displaying unit;

the alternating current power supply loop unit is configured to provide alternating current power supply for the data acquisition loop unit, the driving loop unit and the data processing and displaying unit;

the data acquisition loop unit is configured to acquire a contact state signal of the tested breaker, and acquire an opening and closing control current signal of the tested operating mechanism, an opening and closing coil current signal of the tested operating mechanism, an energy storage voltage signal of the tested operating mechanism and a contact displacement signal under a control instruction of the data processing and displaying unit;

The driving circuit unit is configured to provide power for the detected operating mechanism and send a closing control instruction or a separating control instruction to the detected operating mechanism so as to drive the detected operating mechanism to execute corresponding actions;

the data processing and displaying unit is configured to judge that the tested breaker is in a switching-off state or a switching-on state according to the contact state signals acquired by the data acquisition loop unit, and generate opposite control instructions;

the driving circuit unit comprises a high-voltage direct-current power supply HM, a high-voltage direct-current power supply KM, a power adapter DP, an embedded control module QK, a control switching aviation plug HT, a power supply and discharge circuit, a switching-on and switching-off knob KK and a rotary switch ZH2; the input ends of the high-voltage direct-current power supply HM, the high-voltage direct-current power supply KM and the power adapter DP are all connected with the output end of the alternating-current power supply loop unit; the high-voltage direct-current power supply HM, the high-voltage direct-current power supply KM and the embedded control module QK are in communication connection with the data processing and display unit; the output end of the high-voltage direct-current power supply HM is connected with a normally open contact KMC2-1/KMC2-2 of a contactor KMC2 in the power supply and discharge loop, the output end of the high-voltage direct-current power supply KM is connected with a normally open contact KMC3-1/KMC3-2 of a contactor KMC3 in the power supply and discharge loop, and the output end of the power adapter DP is connected with the power end of the embedded control module QK;

One end K21/K31 of a control contact K2/K3 of the embedded control module QK, a normally open contact KMC2-2 of a contactor KMC2 in the power supply and discharge loop and a normally open contact KMC3-2 of the contactor KMC3 output a closing control instruction or a separating brake control instruction through control switching aviation plug HT; the normally open contact KMC2-1 of the contactor KMC2 and the normally closed contact KMC4-3 of the contactor KMC4 in the power supply and discharge loop charge the energy storage power supply by controlling the switching aviation plug HT; the normally open contact KMC4-1 of the contactor KMC4 is also connected with the energy storage loop through the control switching aviation plug HT;

one ends of two normally closed switches of the rotary switch ZH2 are respectively connected with the other ends K20/K30 of the control contacts K2/K3 of the embedded control module QK, the other ends of the two normally closed switches of the rotary switch ZH2 are respectively connected with a normally open contact KMC2-1 of a contactor KMC2 and a normally open contact KMC3-1 of a contactor KMC3 in the power supply and discharge loop, one ends of the two normally open switches of the rotary switch ZH2 are connected with one ends K21/K31 of the control contacts K2/K3 of the embedded control module QK through a switching-on and switching-off knob KK, and the other ends of the two normally open switches of the rotary switch ZH2 are respectively connected with a normally open contact KMC2-1 of the contactor KMC2 and a normally open contact KMC3-1 of the contactor KMC3 in the power supply and discharge loop.

2. The operating mechanism data collection system of claim 1 wherein: the alternating current power supply loop unit comprises a breaker QF, a contactor KMC1, a rotary switch ZH1 and an indicator lamp JD; the two ends of a main contact QF1 of the breaker QF are respectively connected with a live wire L of external alternating current and a first end of a normally open contact KMC1-1 of a contactor KMC1, and the main contact QF1 is also connected with a first end of a rotary switch ZH 1; one end of a main contact QF2 of the breaker QF is connected with a zero line N of external alternating current, the other end of the main contact QF is respectively connected with a first end of a normally open contact KMC1-2 of a contactor KMC1 and a first end of a coil of the contactor KMC1, and a second end of the coil of the contactor KMC1 is connected with a second end of a rotary switch ZH 1; the branch circuit formed by connecting the indicator lamp JD and the normally open contacts KMC1-3 of the contactor KMC1 in series is connected in parallel with the two ends of the coil of the contactor KMC 1;

the second end of the normally open contact KMC1-1 of the contactor KMC1 and the second end of the normally open contact KMC1-2 serve as output ends of the alternating current power supply loop unit.

3. The operating mechanism data collection system of claim 1 wherein: the data acquisition loop unit comprises a data acquisition module, an I/O module, sampling resistors R1-R5, current sensors L1-L4, low-voltage direct-current switching power supplies Z15 and Z24, a displacement sensor ZW and a voltage sensor DY; the input ends of the low-voltage direct-current switch power supplies Z15 and Z24 are connected with the output end of the alternating-current power supply loop unit, and the output end of the low-voltage direct-current switch power supply Z15 is respectively connected with the power supply ends of the current sensors L1-L4 and the displacement sensor ZW; the output end of the low-voltage direct-current switching power supply Z24 is connected with the power end of the voltage sensor DY; the data acquisition module and the I/O module are respectively connected with the data processing and display unit;

The current sensor L1 is arranged in a closing control loop of the detected operating mechanism, the output end of the current sensor L1 is connected with the input end of the data acquisition module through a sampling resistor R5, and the current sensor L1 is used for acquiring a closing control current signal of the detected operating mechanism; the current sensor L2 is arranged in a brake-separating control loop of the detected operating mechanism, the output end of the current sensor L2 is connected with the input end of the data acquisition module through a sampling resistor R4, and the current sensor L2 is used for acquiring a brake-separating control current signal of the detected operating mechanism;

the current sensor L3 is arranged in a closing coil loop of the detected operating mechanism, the output end of the current sensor L3 is connected with the input end of the data acquisition module through the sampling resistor R3, and the current sensor L3 is used for acquiring a closing coil current signal of the detected operating mechanism; the current sensor L4 is arranged in a brake-separating coil loop of the detected operating mechanism, the output end of the current sensor L4 is connected with the input end of the data acquisition module through a sampling resistor R2, and the current sensor L4 is used for acquiring a brake-separating coil current signal of the detected operating mechanism;

the displacement sensor ZW is arranged in a transmission path of the detected operating mechanism, the output end of the displacement sensor ZW is connected with the input end of the data acquisition module through the sampling resistor R1, and the displacement sensor ZW is used for acquiring a contact displacement signal of the detected circuit breaker;

The voltage sensor DY is arranged in the energy storage loop of the detected operating mechanism, the output end of the voltage sensor DY is connected with the input end of the data acquisition module, and the voltage sensor DY is used for acquiring an energy storage voltage signal of the operating mechanism;

the I/O module is used for collecting contact state signals of the tested circuit breaker and sending the collected contact state signals to the data processing and display unit.

4. The operating mechanism data collection system of claim 3 wherein: the power end of the current sensor L3 is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 port and the 2 port of the sampling switching aviation plug CZ1, and the output end of the current sensor L3 is connected with the input end of the data acquisition module through the 3 port of the sampling switching aviation plug CZ1 through a sampling resistor R3;

the power end of the current sensor L4 is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 port and the 2 port of the sampling switching aviation plug CZ2, and the output end of the current sensor L4 is connected with the input end of the data acquisition module through the 3 port of the sampling switching aviation plug CZ2 through the sampling resistor R2;

the power end of the displacement sensor ZW is connected with the output end of the low-voltage direct-current switching power supply Z15 through the 1 port and the 2 port of the sampling switching aviation plug CZ3, and the output end of the displacement sensor ZW is connected with the input end of the data acquisition module through the 3 port of the sampling switching aviation plug CZ3 through a sampling resistor R1;

The acquisition end of the voltage sensor DY is connected with an energy storage loop of the tested operating mechanism through a 1 port and a 2 port of the sampling switching aviation plug CZ4 and a control switching aviation plug HT in the driving loop unit.

5. The operating mechanism data collection system of claim 3 wherein: the current sensors L1-L4 are Hall current sensors, and the displacement sensor ZW is a linear displacement sensor or an angular displacement sensor.

6. The operating mechanism data collection system of claim 3 wherein: when the detected operating mechanism is a permanent magnet operating mechanism, the voltage sensor DY is arranged in an energy storage capacitor loop of the detected operating mechanism; when the detected operating mechanism is a spring operating mechanism, the voltage sensor DY is arranged in an energy storage power supply loop of the detected operating mechanism.

7. The operating mechanism data collection system of claim 1 wherein: the power supply and discharge loop comprises an embedded control module starting point QK-K1, a rotary switch ZH3, a button SB, contactors KMC2, KMC3, KMC4, an indicator lamp ZD and an energy release resistor Rf; the embedded control module opening point QK-K1 is connected with the button SB in parallel and then connected with the coil of the contactor KMC4 in series to form a first branch, one normally open switch of the rotary switch ZH3 is connected with the coil of the contactor KMC2 in series to form a second branch, the other normally open switch of the rotary switch ZH3 is connected with the coil of the contactor KMC3 in series to form a third branch, and the normally open contact KMC3-3 of the contactor KMC3 is connected with the indicator lamp ZD in series to form a fourth branch; the first branch, the second branch, the third branch and the fourth branch are connected in parallel and then connected with the output end of the alternating current power supply loop unit; the normally-closed contact KMC4-3 of the contactor KMC4 is connected with a normally-open contact KMC2-2 of the contactor KMC2, and the energy release resistor Rf is connected with a normally-closed contact KMC4-1 of the contactor KMC 4.

8. The operating mechanism data collection system of claim 1 wherein: the data processing and displaying unit comprises a UPS power supply, a display and an industrial personal computer host; the input end of the UPS is connected with the output end of the alternating current power supply loop unit, and the output end of the UPS is connected with the power ends of the display and the industrial personal computer host; the industrial personal computer host is connected with the display.

9. A control method of the operating mechanism data collection system according to any one of claims 1 to 8, characterized by comprising the steps of:

during testing, the I/O module of the data acquisition loop unit acquires a contact state signal of the tested breaker;

the data processing and displaying unit judges that the tested breaker is in a switching-off state or a switching-on state according to the contact state signals acquired by the I/O module, and generates a switching-on control instruction or a switching-off control instruction;

the switching-on control loop of the detected operating mechanism is controlled to be switched on according to the switching-on control instruction, or the switching-off control loop of the detected operating mechanism is controlled to be switched on according to the switching-off control instruction;

the data acquisition loop unit acquires a closing control current signal or a separating brake control current signal, and further acquires a closing coil current signal or a separating brake coil current signal, an energy storage voltage signal and a contact displacement signal.

Images