CN115877201B - Running-in test power supply vehicle of switch cabinet circuit breaker - Google Patents
Running-in test power supply vehicle of switch cabinet circuit breaker Download PDFInfo
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- CN115877201B CN115877201B CN202310219102.1A CN202310219102A CN115877201B CN 115877201 B CN115877201 B CN 115877201B CN 202310219102 A CN202310219102 A CN 202310219102A CN 115877201 B CN115877201 B CN 115877201B
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Abstract
Running-in test power supply vehicle of switch cabinet circuit breaker. The invention aims to solve the problems that the prior art cannot simultaneously provide two power supplies with different voltage levels, the running-in test application range is narrow, the automation control level is low and the like. The technical key points are as follows: the running-in test device comprises a vehicle body, wheels and a running-in test device, wherein the top side of the vehicle body is rectangular, two openable sealing covers are arranged on the vehicle body, a control box is arranged on the vehicle body, the running-in test device comprises two switch operation power supplies, a programmable intelligent controller and an opening and closing control operator, the two switch operation power supplies are arranged on the inner sides of the two sealing covers, an alternating current-direct current voltage regulating switch, a change-over switch, an output rotary switch, an output interface and an external power input interface are arranged on the top surface of the switch operation power supplies, the programmable intelligent controller and the opening and closing control operator are arranged in the control box, the programmable intelligent controller comprises a PLC (programmable logic controller) integrated machine, a touch screen of the programmable intelligent controller is arranged on the control box, and a power switch, an intelligent automatic control starting or stopping rotary switch, a manual control opening and closing button switch and the like are arranged on the control box.
Description
Technical Field
The invention relates to a testing device of a switch cabinet manufacturing factory of power equipment, in particular to a running-in testing power supply vehicle of a switch cabinet circuit breaker.
Background
For a switch cabinet manufacturing factory of power equipment, the usage amount of a breaker serving as an important electrical element of the switch cabinet is large, and the operational reliability of the breaker directly influences the effectiveness of control and protection of the switch cabinet in power grid power supply, so that running-in test of the breaker is needed before the switch cabinet leaves a factory. The running-in test of the traditional switch cabinet circuit breaker does not have special equipment, manual labor is required to be conducted on the circuit breaker subjected to the running-in test, and when the number of the circuit breakers required to be tested is large, the labor intensity of the complicated wiring is too high, the working efficiency is too low, and misconnection is easy to occur. In addition, the voltage levels required by the opening low-voltage test and the closing low-voltage test of the running-in test of the switch cabinet circuit breaker are different, the voltage required by the opening low-voltage test is 65% of the rated voltage, and the voltage required by the closing low-voltage test and the energy storage low-voltage test is 85% of the rated voltage, so that the running-in test of one switch cabinet circuit breaker is determined to be required to simultaneously provide two power supplies with different voltage levels, and the complexity of the running-in test of the switch cabinet circuit breaker of the traditional manual complicated wiring is caused.
The built-in isolating switch running-in test board of the ZW68-12 circuit breaker disclosed in China patent No. 215641687U structurally comprises an operation board body and a transmission shaft, wherein a coupler of an operation mechanism in the operation board body is connected with the transmission shaft, an energy storage motor drives a driving shaft to rotate through a large chain wheel, a chain and a small chain wheel in the operation mechanism, one end of a driving crank arm III is connected with the driving shaft, the other end of the driving crank arm III is connected with a spring, and the other end of the spring is fixed with a stud at the bottom of the operation mechanism; the driving shaft drives the operation shaft to rotate through the connecting rod and the driving crank so as to drive the coupler to rotate, and drives the transmission shaft to rotate so as to drive the disconnecting switch in the breaker body to be operated in a switching mode; the auxiliary switch is connected with the operation shaft through a connecting rod and a crank arm; the opening and closing instruction is arranged on the operation shaft. The disadvantage of this solution is: the running-in test bench adopts a set of special operating mechanism to connect the breaker through a transmission shaft and drive the isolating switch of the breaker to conduct clutch action by external force, and only the mechanical action reliability of the isolating switch in the outdoor breaker is tested by running-in, so that the running-in test bench can only be used for running-in test of the ZW68-12 outdoor breaker and cannot be suitable for running-in test of the overall performance of a switching-on and switching-off and energy storage working system of the built-in breaker of the switch cabinet; secondly, two power supplies with different voltage levels cannot be provided, and when two power supplies with different voltage levels are needed, two running-in test tables are needed to be used for running-in test, so that running-in experimental equipment is high in cost, large in occupied space and troublesome in wiring; third, the circuit schematic diagram of the running-in test bench is not disclosed, and neither manual control nor automatic control can be realized.
The utility model discloses a GIS circuit breaker running-in experiment controlling means of chinese patent No. CN 214375149U, the structure includes the box, the box top is equipped with operation display panel, its characterized in that, operation display panel top is equipped with the display screen, the display screen below is provided with pilot lamp and operation button, the pilot lamp includes the power indicator, closing indicator and separating brake pilot lamp, the operation button includes start button, stop button, the box is inside to be equipped with the counter, time relay, intermediate relay, rectifier bridge and terminal row, all fix on the fixing base and connect through the wire, box one side is equipped with the gram head, gram head one side passes the box and is connected with the terminal row, gram head opposite side is connected with the circuit breaker that is surveyed. The disadvantage of this solution is: the running-in test device has the advantages that only one switch operation power supply is provided, only one voltage-class power supply can be provided for the running-in test of the GIS breaker, if the GIS breaker needs to be subjected to a low-voltage running-in test, another running-in test control device is needed to provide another voltage-class power supply, namely two running-in test control devices are needed to be used for running-in tests together, so that the running-in test device is high in cost, large in occupied space and troublesome in wiring; secondly, only a direct current power supply can be provided, and an alternating current power supply cannot be provided, so that the application range of running-in experiments is narrow, and the universality of equipment is poor; thirdly, the provided power supply voltage can not be adjusted, so that the application range of running-in experiments is narrow, and the universality of equipment is poor; and fourthly, the total power supply time of one running-in experiment is limited by adopting a total time relay in the automatic control, and the power supply time period of each relay action in the running-in experiment is limited by each time-dividing relay, so that each action cycle of one running-in experiment is controlled, the counter is not embodied, and the overall automatic control level is low.
Disclosure of Invention
In order to solve the problems that two running-in test power supplies with different voltage levels cannot be provided at the same time in the prior art, two running-in test devices are required to be used when two voltage levels are needed for running-in test, the running-in test application range is narrow, the device universality is poor, the automation control level is low and the like, the invention aims to provide an improved running-in test power supply vehicle for a switch cabinet circuit breaker, and the defects in the prior art can be overcome.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a running-in test power supply vehicle of cubical switchboard circuit breaker, includes the automobile body and install in wheel and running-in testing arrangement on the automobile body, characterized by: the top side of the vehicle body is rectangular, a first sealing cover and a second sealing cover which can be opened from the long side direction of the top side of the vehicle body are arranged on the top side of the vehicle body, a control box is arranged at the short side of the top side of the vehicle body, the running-in test device comprises a first switch operation power supply, a second switch operation power supply, a programmable intelligent controller, a closing control operator and a switching-off control operator, the first switch operation power supply and the second switch operation power supply are respectively arranged on the vehicle body inside the first sealing cover and the second sealing cover, a first power switch, a first alternating current voltage regulating switch, a first direct current voltage regulating switch, a first alternating current-direct current switch, a first energy storage output rotary switch, a first closing output rotary switch, a first switching-off output rotary switch, a first energy storage output interface, a first closing output interface, a first switching-off output interface and an external power input interface are arranged on the top surface of the first switch operation power supply, the top surface of the second switch operating power supply is provided with a second power switch, a second alternating current voltage regulating switch, a second direct current voltage regulating switch, a second alternating current-direct current change-over switch, a second energy storage output rotary switch, a second closing output rotary switch and a second opening output rotary switch, the programmable intelligent controller, a closing control operator and an opening control operator are arranged in the control box, the programmable intelligent controller comprises a programmable logic controller integrated machine (PLC integrated machine) with a touch screen, the touch screen of the programmable logic controller integrated machine is arranged on the outer side surface of the control box, the outer side surface of the control box is also provided with a control box power switch, an intelligent automatic control starting or stopping rotary switch, a reclosing starting or stopping rotary switch, a reset button switch, A manual control switch-on button switch and a manual control switch-off button switch; the circuit component of the first switch operation power supply comprises an external power input interface, a first power switch, a first power indicator, a first transformer, a first alternating-current voltage regulating switch, a first rectifier, a first direct-current voltage regulating switch, a first alternating-current/direct-current change-over switch, a first energy storage output rotary switch, a first closing output rotary switch and a first opening output rotary switch which are correspondingly connected with each other; the circuit component of the second switch operation power supply comprises an external power input interface, a second power switch, a second power indicator, a second transformer, a second alternating-current voltage regulating switch, a second rectifier, a second direct-current voltage regulating switch, a second alternating-current/direct-current change-over switch, a second energy storage output rotary switch, a second closing output rotary switch and a second opening output rotary switch which are correspondingly connected with each other; the circuit components of the first switch operation power supply are correspondingly connected with each other, the external power supply input interface is connected with the first power supply switch input end, and the first power supply switch output end is connected with the first transformer input end; the first power indicator lamp is connected to a connecting circuit between the output end of the first power switch and the first transformer; the output end of the first transformer is divided into two paths, one path is connected with the alternating current input end of the first alternating current-direct current switching switch through a first alternating current voltage regulating switch, and the other path is connected with the direct current input end of the first alternating current-direct current switching switch through a first rectifier and a first direct current voltage regulating switch; the alternating current output end and the direct current output end of the first alternating current-direct current switching switch are connected in parallel and then divided into three paths, wherein one path is used as a first energy storage output end through the first energy storage output rotary switch, the other path is used as a first switching-on output end through the first switching-on output rotary switch, and the other path is used as a first switching-off output end through the first switching-off output rotary switch; the circuit components of the second switch operation power supply are correspondingly connected with each other, wherein the external power supply input interface is connected with the second power supply switch input end, and the second power supply switch output end is connected with the second transformer input end; the second power indicator lamp is connected to a connecting circuit between the output end of the second power switch and the second transformer; the output end of the second transformer is divided into two paths, wherein one path is connected with the alternating current input end of the second alternating current-direct current switching switch through a second alternating current voltage regulating switch, and the other path is connected with the direct current input end of the second alternating current-direct current switching switch through a second rectifier and a second direct current voltage regulating switch; the alternating current output end and the direct current output end of the second alternating current-direct current switching switch are connected in parallel and then are divided into three paths, wherein one path is used as a second energy storage output end through the second energy storage output rotary switch, the other path is used as a second switching output end through the second switching output rotary switch, and the other path is used as a second switching output end through the second switching output rotary switch; the first energy storage output end and the second energy storage output end are connected in parallel and then connected with the first energy storage output interface, the first switching-on output end and the second switching-on output end are connected in parallel and then connected with the first switching-on output interface through the switching-on control operator, and the first switching-off output end and the second switching-off output end are connected in parallel and then connected with the first switching-off output interface through the switching-off control operator; the first energy storage output interface, the first closing output interface and the first opening output interface are used for connecting a switch cabinet relay for running-in test.
According to the technical scheme, the second energy storage output interface, the second closing output interface and the second opening output interface which are respectively connected with the first energy storage output interface, the first closing output interface and the first opening output interface in parallel can be further arranged on the top surface of the second switch operation power supply, and can be used for connecting a relay of another switch cabinet and simultaneously carrying out running-in test.
Above-mentioned technical scheme the top surface of first switch operation power supply can be equipped with first power pilot lamp, the top surface of second switch operation power supply can be equipped with the second power pilot lamp, the lateral surface of control box can be equipped with control box power pilot lamp.
The circuit component of the programmable intelligent controller can comprise the PLC integrated machine, a control box power switch, a control box power indicator lamp, a stabilized voltage power supply, an automatic control closing relay coil, an automatic control opening relay coil, an intelligent automatic control starting or stopping rotary switch, a reclosing starting or stopping rotary switch and a reset button switch which are correspondingly connected with each other; the circuit component of the switching-on control operator can comprise a manual switching-on control button switch and an automatic switching-on control relay normally open contact which are correspondingly connected with each other; the circuit component of the opening control operator can comprise a manual control opening button switch and an automatic control opening relay normally open contact which are correspondingly connected with each other.
According to the technical scheme, the circuit components which are correspondingly connected with each other of the programmable intelligent controller can further comprise a normally closed contact of a switching-on and switching-off information input relay and a normally closed contact of an energy storage information input relay, the normally closed contact of the switching-on and switching-off information input relay can be controlled by a relay coil which reflects the switching-on and switching-off states on a switch cabinet breaker which is subjected to running-in test, and the normally closed contact of the energy storage information input relay can be controlled by a relay coil which reflects the energy storage states on the switch cabinet breaker which is subjected to running-in test.
According to the technical scheme, the switching-on control operator can be a parallel circuit of the manual control switching-on button switch and the normally open contact of the automatic control switching-on relay; the opening control operator can be a parallel circuit of the manual control opening button switch and the normally open contact of the automatic control opening relay.
The circuit components of the programmable intelligent controller are correspondingly connected with each other, wherein the power input interface is connected with the power switch input end of the control box; the fire wire at the output end of the control box power switch is divided into two paths, wherein one path is connected with the fire wire input end of the stabilized voltage power supply, and the other path is connected with the first public end of the PLC all-in-one machine; the zero line of the power switch output end of the control box is divided into three paths, wherein one path is connected with the zero line input end of the stabilized voltage power supply, the other path is connected with the first output end of the PLC all-in-one machine through the automatic control switching-on relay coil, and the other path is connected with the second output end of the PLC all-in-one machine through the automatic control switching-off relay coil; the output end of the stabilized voltage power supply is connected with the power end of the PLC all-in-one machine; the control box power indicator lamp is connected to an output circuit of the control box power switch; the two ends of the intelligent automatic control start or stop rotary switch are respectively connected with a first input end and a second public end of the PLC all-in-one machine; two ends of the reclosing starting or stopping rotary switch are respectively connected with a second input end and a second public end of the PLC all-in-one machine; and two ends of the reset button switch are respectively connected with a third input end and a second common end of the PLC all-in-one machine.
According to the technical scheme, the programmable intelligent controller is correspondingly connected with the normally closed contact of the switching-on and switching-off information input relay and the normally closed contact of the energy storage information input relay, wherein two ends of the normally closed contact of the switching-on and switching-off information input relay are respectively connected with the fourth input end and the second common end of the PLC all-in-one machine, and two ends of the normally closed contact of the energy storage information input relay are respectively connected with the fifth input end and the second common end of the PLC all-in-one machine.
The beneficial effects of the invention are as follows: the running-in test device comprises a first switch operation power supply, a first power supply switch, a first alternating-current voltage regulating switch, a first direct-current voltage regulating switch, a first alternating-current/direct-current change-over switch, a first energy storage output rotary switch, a first switching-on output rotary switch, a first switching-off output rotary switch, a first energy storage output interface, a first switching-on output interface, a first switching-off output interface and an external power supply input interface, a second switch operation power supply, a second power supply switch, a second alternating-current voltage regulating switch, a second direct-current voltage regulating switch, a second alternating-current/direct-current change-over switch, a second energy storage output rotary switch, a second switching-on output rotary switch and a second switching-off output rotary switch, and a running-in test power supply with two different voltage grades can be provided for a switch cabinet relay for running-in test at the same time, so that the existing technical defects that two running-in test equipment must be used when two voltage grade power supplies are needed at the same time are overcome, the running-in test equipment cost is reduced, and the occupied space and wiring trouble of test equipment are reduced; the switching operation power supply is provided with an alternating current voltage regulating switch, a direct current voltage regulating switch and an alternating current-direct current change-over switch, so that the two switching operation power supplies can output a direct current power supply and also can output an alternating current power supply, and the output direct current voltage and the output alternating current voltage can be regulated and changed in height, therefore, the running-in test device can be almost suitable for running-in tests of all types of switch cabinet circuit breakers, and has wide application range and high equipment universality; thirdly, the programmable intelligent controller adopts a programmable logic controller integrated machine with a touch screen, namely a PLC integrated machine, and is provided with an intelligent automatic control start or stop rotary switch, a reclosing start or stop rotary switch and a reset button switch, so that the advanced automatic control level can be achieved, and the ideal running-in test effect can be obtained; and fourthly, two mode selections of a manual running-in test and an automatic running-in test of the switch cabinet circuit breaker are provided, and the flexibility and the adaptability of the running-in test are improved.
The invention is further described below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic view of the first cover, second cover and a side door of fig. 1 opened.
Fig. 3 is a schematic circuit diagram of the circuit connection structure of the first switch operating power supply and the second switch operating power supply of fig. 2 and a circuit schematic of the connection of the circuit connection structure and the switch cabinet circuit breaker for running-in test, and fig. 3 omits the second energy storage output interface, the second switch-on output interface and the second switch-off output interface.
Fig. 4 is a schematic circuit diagram of the programmable intelligent controller of fig. 1.
In the figure: 1. a vehicle body; 2. a wheel; 3. running-in testing device; 4. a vehicle body top side; 5. a first cover; 6. a second cover; 7. a control box; 8. a first switching power supply; 9. a second switching operation power supply; 10. a programmable intelligent controller; 11. a first power switch; 12. a first ac voltage regulating switch; 13. a first direct current voltage regulating switch; 14. a first ac/dc changeover switch; 15. a first energy storage output rotary switch; 16. the first switching-on output rotary switch; 17. a first opening output rotary switch; 18. a first energy storage output interface; 19. a first closing output interface; 20. a first split gate output interface; 21. an external power input interface; 22. a second power switch; 23. a second alternating voltage regulating switch; 24. a second direct-current voltage regulating switch; 25. a second ac/dc changeover switch; 26. the second energy storage output rotary switch; 27. the second switching-on output rotary switch; 28. a second switching output rotary switch; 29. a touch screen; 30. a control box power switch; 31. the intelligent automatic control starts or stops the rotary switch; 32. reclosing to start or stop the rotary switch; 33. resetting the button switch; 34. manually controlling a closing button switch; 35. manually controlling a brake-separating button switch; 36. a second energy storage output interface; 37. the second switching-on output interface; 38. a second split gate output interface; 39. a first power indicator light; 40. a second power indicator light; 41. and the control box power indicator lamp.
Description of the embodiments
Referring to fig. 1 to 2, the running-in test power supply vehicle of the switch cabinet circuit breaker comprises a vehicle body 1, wheels 2 and a running-in test device 3 which are arranged on the vehicle body 1, and is characterized in that: the top side 4 of the vehicle body 1 is rectangular, a first sealing cover 5 and a second sealing cover 6 which can be opened from the long side direction of the top side 4 are arranged on the top side 4 of the vehicle body 1, a control box 7 is arranged at the short side of the top side 4 of the vehicle body 1, the running-in test device 3 comprises a first switch operation power supply 8, a second switch operation power supply 9, a programmable intelligent controller 10, a switching-on control operator and a switching-off control operator, the first switch operation power supply 8 and the second switch operation power supply 9 are respectively arranged on the vehicle body 1 at the inner sides of the first sealing cover 5 and the second sealing cover 6, a first power switch 11, a first alternating current voltage regulating switch 12, a first direct current voltage regulating switch 13, a first alternating current-direct current switch 14, a first energy storage output rotary switch 15, a first switching-on output rotary switch 16, a first switching-off output rotary switch 17, a first energy storage output interface 18, a first switching-on output interface 19, a first switching-off output interface 20 and a switching-on output interface 21 are respectively arranged on the top surface of the first switch operation power supply 8, the top surface of the switch operation power supply 9 is provided with a second power switch 22, a second alternating current voltage regulating switch 23, a second direct current voltage regulating switch 24, a second alternating current-direct current switch 25, a second energy storage output rotary switch 26, a second closing output rotary switch 27 and a second opening output rotary switch 28, the programmable intelligent controller 10, a closing control operator and an opening control operator are all arranged in the control box 7, the programmable intelligent controller 10 comprises a programmable logic controller integrated machine (PLC integrated machine) with a touch screen 29, the touch screen 29 is arranged on the outer side surface of the control box 7, and the outer side surface of the control box 7 is also provided with a control box power switch 30, the intelligent automatic control starts or stops the rotary switch 31, recloses the start or stop rotary switch 32, resets the button switch 33, the manual control switch-on button switch 34 and the manual control switch-off button switch 35.
In addition, the first energy storage output interface 18, the first switch-on output interface 19 and the first switch-off output interface 20 which are arranged on the top surface of the first switch operation power supply 8 are used for a switch cabinet relay to be connected for running-in test; the top surface of the second switch operating power supply 9 is further provided with a second energy storage output interface 36, a second switch-on output interface 37 and a second switch-off output interface 38 which are respectively connected with the first energy storage output interface 18, the first switch-on output interface 19 and the first switch-off output interface 20 in parallel, and the second switch-on output interface, the second switch-on output interface 37 and the second switch-off output interface 38 are used for connecting another switch cabinet relay and simultaneously performing running-in test.
The top surface of the first switch operation power supply 8 is provided with a first power supply indicator lamp 39, the top surface of the second switch operation power supply 9 is provided with a second power supply indicator lamp 40, and the outer side surface of the control box 7 is provided with a control box power supply indicator lamp 41.
Referring to fig. 3 to 4, the circuit components of the first switch operating power supply 8 include an external power input interface 21, a first power switch DS1, a first power indicator EL1, a first transformer T1, a first ac voltage regulating switch AVS1, a first rectifier UK1, a first dc voltage regulating switch DVS1, a first ac/dc changeover switch QS1, a first stored energy output rotary switch CS1, a first closing output rotary switch HS1, and a first opening output rotary switch FS1, which are correspondingly connected to each other; the circuit components of the switch operation power supply 9 include an external power input interface 21, a second power switch DS2, a second power indicator EL2, a second transformer T2, a second ac voltage regulating switch AVS2, a second rectifier UK2, a second dc voltage regulating switch DVS2, a second ac-dc changeover switch QS2, a second energy storage output rotary switch CS2, a second closing output rotary switch HS2, and a second opening output rotary switch FS2, which are correspondingly connected to each other; the circuit components of the programmable intelligent controller 10 comprise a programmable logic controller integrated machine PLC with a touch screen, a control box power switch DS3, a control box power indicator lamp EL3, a stabilized voltage power supply IC with a model HDR-60-24, an automatic control switching-on relay coil HJ2, an automatic control switching-off relay coil FJ2, an intelligent automatic control starting or stopping rotary switch ZS, a reclosing starting or stopping rotary switch CHS and a reset button switch FWS which are correspondingly connected with each other.
The circuit component of the switching-on control operator comprises a manual switching-on control button switch HAS and an automatic switching-on control relay normally-open contact HJ1 which are correspondingly connected with each other; the circuit component of the opening control operator comprises a manual control opening button switch FAS and an automatic control closing relay normally open contact FJ1 which are correspondingly connected with each other.
The circuit components of the programmable intelligent controller 10, which are correspondingly connected with each other, further comprise a normally closed contact FHJ of a switching-on and switching-off information input relay and a normally closed contact CJ of an energy storage information input relay, wherein the normally closed contact FHJ of the switching-on and switching-off information input relay is controlled by a relay coil which reflects the switching-on and switching-off states on a switch cabinet circuit breaker DLQ which is subjected to running-in test, and the normally closed contact CJ of the energy storage information input relay is controlled by a relay coil which reflects the energy storage states on the switch cabinet circuit breaker DLQ which is subjected to running-in test.
The circuit components of the first switch operation power supply 8 are correspondingly connected with each other, that is, the external power input interface 21 is connected with the input end of the first power switch DS1, and the output end of the first power switch DS1 is connected with the input end of the first transformer T1; the first power indicator EL1 is connected to a connection circuit between the output end of the first power switch input DS1 and the first transformer T1; the output end of the first transformer T1 is divided into two paths, one path is connected with the alternating current input end of the first alternating current-direct current switch QS1 through a first alternating current voltage regulating switch AVS1, and the other path is connected with the direct current input end of the first alternating current-direct current switch QS1 after passing through a first rectifier UK1 and then passing through a first direct current voltage regulating switch DVS 1; the ac output end and the dc output end of the first ac/dc switch QS1 are connected in parallel and then divided into three paths, wherein one path passes through the first energy storage output rotary switch CS1 to serve as a first energy storage output end, the other path passes through the first closing output rotary switch HS1 to serve as a first closing output end, and the other path passes through the first opening output rotary switch FS1 to serve as a first opening output end. The circuit components of the second switch operation power supply 9 are correspondingly connected with each other, that is, the external power supply input interface 21 is connected with the input end of the second power switch DS2, and the output end of the second power switch DS2 is connected with the input end of the second transformer T2; the second power indicator lamp EL2 is connected to a connection circuit between the output end of the second power switch DS2 and the second transformer T2; the output end of the second transformer T2 is divided into two paths, one path is connected with the alternating current input end of the second alternating current-direct current switch QS2 through a second alternating current voltage regulating switch AVS2, and the other path is connected with the direct current input end of the second alternating current-direct current switch QS2 after passing through a second rectifier UK2 and then passing through a second direct current voltage regulating switch DVS 2; the ac output end and the dc output end of the second ac/dc switch QS2 are connected in parallel and then split into three paths, wherein one path passes through the second energy storage output rotary switch CS2 to serve as a second energy storage output end, the other path passes through the second switch-on output rotary switch HS2 to serve as a second switch-on output end, and the other path passes through the second switch-off output rotary switch FS2 to serve as a second switch-off output end.
The first energy storage output end and the second energy storage output end are connected in parallel and then connected with the first energy storage output interface 18, the first closing output end and the second closing output end are connected in parallel and then connected with the first closing output interface 19 through the closing control operator, and the first opening output end and the second opening output end are connected in parallel and then connected with the opening output interface 20 through the opening control operator.
The first energy storage output interface 18 is used as a connection interface for connecting an energy storage circuit CD on the switch cabinet circuit breaker DLQ which is subjected to running-in test, the first switching-on output interface 19 is used as a connection interface for connecting a switching-on circuit HD on the switch cabinet circuit breaker DLQ which is subjected to running-in test, and the first switching-off output interface 20 is used as a connection interface for connecting a switching-off circuit FD on the switch cabinet circuit breaker DLQ which is subjected to running-in test.
The switching-on control operator is a parallel circuit of the manual control switching-on button switch HAS and the normally open contact HJ1 of the automatic control switching-on relay; the opening control operator is a parallel circuit of the manual control opening button switch FAS and the automatic control opening relay normally open contact FJ1.
The circuit components of the programmable intelligent controller 10 are correspondingly connected with each other, namely the power input interface is connected with the input end of the control box power switch DS3; the live wire L at the output end of the control box power switch DS3 is divided into two paths, wherein one path is connected with the live wire L input end of the stabilized voltage power supply IC, and the other path is connected with a first public end COM5 of the programmable logic controller integrated machine PLC with the touch screen; the zero line N at the output end of the control box power switch DS3 is divided into three paths, wherein one path is connected with the zero line N input end of the stabilized voltage power supply IC, the other path is connected with the first output end YOO of the PLC after passing through the automatic control switching-on relay coil HJ2, and the other path is connected with the second output end YO1 of the PLC after passing through the automatic control switching-off relay coil FJ 2; the output end of the stabilized voltage power supply IC is respectively connected with +24V and-24V of the power supply end of the PLC; the control box power indicator EL3 is connected to an output circuit of the control box power switch DS3; two ends of the intelligent automatic control start or stop rotary switch ZS are respectively connected with a first input end XO and a second public end COM of the PLC; two ends of the reclosing start or stop rotary switch CHS are respectively connected with a second input end X1 and a second public end COM of the PLC; two ends of the reset button switch FWS are respectively connected to the third input end X3 and the second common end COM of the PLC.
The programmable intelligent controller 10 is correspondingly connected with the normally closed contact FHJ of the switching on and off information input relay and the normally closed contact CJ of the energy storage information input relay, wherein two ends of the normally closed contact FHJ of the switching on and off information input relay are respectively connected with a fourth input end X2 and a second common end COM of the PLC, and two ends of the normally closed contact CJ of the energy storage information input relay are respectively connected with a fifth input end X4 and the second common end COM of the PLC.
When the switch cabinet circuit breaker DLQ is used, an energy storage circuit CD, a closing circuit HD and a separating circuit FD of a switch cabinet circuit breaker DLQ which are subjected to running-in test are respectively connected to a first energy storage output interface 18, a first closing output interface 19 and a first separating output interface 20 on the top surface of the first switch operation power supply 8 in a plug-in manner, an external power supply is connected to an external power supply input interface 21 on the top surface of the first switch operation power supply 8 in a plug-in manner, and then a first power supply switch DS1, a second power supply switch DS2 and a control box power supply switch DS3 are closed; respectively adjusting a first alternating current voltage regulating switch AVS1, a second alternating current voltage regulating switch AVS2, a first direct current voltage regulating switch DVS1 and a second direct current voltage regulating switch DVS2 according to running-in test requirements to set power supply values of alternating current and direct current output on a first switch operation power supply 8 and a second switch operation power supply 9, and then setting whether the first switch operation power supply 8 and the second switch operation power supply 9 adopt alternating current power supply output or direct current power supply output by operating a first alternating current-direct current switch QS1 and a second alternating current-direct current switch QS 2; when the energy storage running-in test, the closing running-in test and the opening running-in test only need to use the power supplies with the same voltage level (such as the high-voltage running-in test), the energy storage running-in test, the closing running-in test and the opening running-in test can be powered by only one switch operation power supply of the first switch operation power supply 8 and the second switch operation power supply 9, and at the moment, the first energy storage output rotary switch CS1, the first closing output rotary switch HS1 and the first opening output rotary switch FS1 of the first switch operation power supply 8 are closed, or the second energy storage output rotary switch CS2, the second closing output rotary switch HS2 and the second opening output rotary switch FS2 of the second switch operation power supply 9 are closed; when two power supplies with different voltage levels are needed in the energy storage running-in test, the closing running-in test and the opening running-in test (such as the low voltage running-in test), when the first switch operation power supply 8 and the second switch operation power supply 9 are needed to supply power at the same time, one applicable energy storage output rotary switch of the first energy storage output rotary switch CS1 and the second energy storage output rotary switch CS2 is selected to be closed, one applicable closing output rotary switch of the first closing output rotary switch HS1 and the second closing output rotary switch HS2 is closed, and one applicable energy storage output rotary switch of the first opening output rotary switch FS1 and the second opening output rotary switch FH2 is closed.
When the manual control running-in test is adopted, under the condition that the intelligent automatic control of the programmable intelligent controller 10 starts or stops the rotary switch ZS to be opened, namely, the automatic control running-in test mode is closed, after the energy storage circuit CD of the switch cabinet circuit breaker DLQ finishes energy storage, the manual control switch-on button switch HAS is pressed down, if the switch cabinet circuit breaker DLQ can correctly finish the switch-on action, the switch-on performance of the switch cabinet circuit breaker DLQ is good, otherwise, the manual control switch-off button switch FAS is bad, if the switch cabinet circuit breaker DLQ can correctly finish the switch-on action, the switch-off performance of the switch cabinet circuit breaker DLQ is good, otherwise, the switch cabinet circuit breaker DLQ is correct after all times of pressing the manual control switch-on button switch HAS and the manual control switch-off button switch FAS are finished according to the running-in test requirement, the switch cabinet circuit breaker DLQ is qualified in running-in test, otherwise, the switch cabinet circuit breaker DLQ is unqualified. In practical operation, the manual control running-in test is often used as a pre-running-in test before the automatic control running-in test is performed, the manual control switch-on button switch HAS and the manual control switch-off button switch FAS are pressed for a plurality of times, if the switch cabinet circuit breaker DLQ acts correctly, the pre-running-in test is indicated to be free of problems, and then the automatic control running-in test is performed.
When the automatic control running-in test is adopted, the intelligent automatic control starting or stopping rotary switch ZS is closed so as to enable an automatic control mode; after the energy storage of the energy storage circuit CD of the switch cabinet circuit breaker DLQ is finished, the programmable intelligent controller 10 performs cyclic automatic control of switching on and switching off on the switch cabinet circuit breaker DLQ according to a control program input in advance, wherein the delay from one action to the other action is preset by the control program, the automatic control is that the normally open contact HJ1 of the automatic control switch-on relay and the normally open contact FJ1 of the automatic control switch-off relay are respectively controlled to be closed and opened by the automatic control switch-on relay coil HJ2 and the automatic control switch-off relay coil FJ2 in a cyclic manner, so that the switch cabinet circuit breaker DLQ is driven to complete switching on and switching off actions in a cyclic manner, when the switch cabinet circuit breaker DLQ can accurately act, the running-in test of the switch cabinet circuit breaker DLQ is qualified, and otherwise the running-in test of the switch cabinet circuit breaker DLQ is disqualified; when the switching-on state of the switch cabinet circuit breaker DLQ trips due to faults in the automatic control running-in test, after the faults are removed, a reset button switch FWS is pressed down, so that a control system of the programmable intelligent controller 10 is restored to the original state, and a reclosing starting or stopping rotary switch CHS is closed, so that the switching-on running-in test is carried out again; in the automatic control running-in test mode, the touch screen 29 of the programmable intelligent controller 10 will display various states and results, and the touch screen 29 is also used for controlling program input operations and other touch operations.
Claims (7)
1. The utility model provides a running-in test power supply vehicle of cubical switchboard circuit breaker, includes the automobile body and install in wheel and running-in testing arrangement on the automobile body, characterized by: the top side of the vehicle body is rectangular, a first sealing cover and a second sealing cover which can be opened from the long side direction of the top side of the vehicle body are arranged on the top side of the vehicle body, a control box is arranged at the short side of the top side of the vehicle body, the running-in test device comprises a first switch operation power supply, a second switch operation power supply, a programmable intelligent controller, a closing control operator and a switching-off control operator, the first switch operation power supply and the second switch operation power supply are respectively arranged on the vehicle body inside the first sealing cover and the second sealing cover, a first power switch, a first alternating current voltage regulating switch, a first direct current voltage regulating switch, a first alternating current-direct current switch, a first energy storage output rotary switch, a first closing output rotary switch, a first switching-off output rotary switch, a first energy storage output interface, a first closing output interface, a first switching-off output interface and an external power input interface are arranged on the top surface of the first switch operation power supply, the top surface of the second switch operating power supply is provided with a second power switch, a second alternating current voltage regulating switch, a second direct current voltage regulating switch, a second alternating current-direct current change-over switch, a second energy storage output rotary switch, a second closing output rotary switch and a second opening output rotary switch, the programmable intelligent controller, a closing control operator and an opening control operator are arranged in the control box, the programmable intelligent controller comprises a programmable logic controller integrated machine (PLC integrated machine) with a touch screen, the touch screen of the programmable logic controller integrated machine is arranged on the outer side surface of the control box, the outer side surface of the control box is also provided with a control box power switch, an intelligent automatic control starting or stopping rotary switch, a reclosing starting or stopping rotary switch, a reset button switch, A manual control switch-on button switch and a manual control switch-off button switch; the circuit component of the first switch operation power supply comprises an external power input interface, a first power switch, a first power indicator, a first transformer, a first alternating-current voltage regulating switch, a first rectifier, a first direct-current voltage regulating switch, a first alternating-current/direct-current change-over switch, a first energy storage output rotary switch, a first closing output rotary switch and a first opening output rotary switch which are correspondingly connected with each other; the circuit component of the second switch operation power supply comprises an external power input interface, a second power switch, a second power indicator, a second transformer, a second alternating-current voltage regulating switch, a second rectifier, a second direct-current voltage regulating switch, a second alternating-current/direct-current change-over switch, a second energy storage output rotary switch, a second closing output rotary switch and a second opening output rotary switch which are correspondingly connected with each other; the circuit components of the first switch operation power supply are correspondingly connected with each other, the external power supply input interface is connected with the first power supply switch input end, and the first power supply switch output end is connected with the first transformer input end; the first power indicator lamp is connected to a connecting circuit between the output end of the first power switch and the first transformer; the output end of the first transformer is divided into two paths, one path is connected with the alternating current input end of the first alternating current-direct current switching switch through a first alternating current voltage regulating switch, and the other path is connected with the direct current input end of the first alternating current-direct current switching switch through a first rectifier and a first direct current voltage regulating switch; the alternating current output end and the direct current output end of the first alternating current-direct current switching switch are connected in parallel and then divided into three paths, wherein one path is used as a first energy storage output end through the first energy storage output rotary switch, the other path is used as a first switching-on output end through the first switching-on output rotary switch, and the other path is used as a first switching-off output end through the first switching-off output rotary switch; the circuit components of the second switch operation power supply are correspondingly connected with each other, wherein the external power supply input interface is connected with the second power supply switch input end, and the second power supply switch output end is connected with the second transformer input end; the second power indicator lamp is connected to a connecting circuit between the output end of the second power switch and the second transformer; the output end of the second transformer is divided into two paths, wherein one path is connected with the alternating current input end of the second alternating current-direct current switching switch through a second alternating current voltage regulating switch, and the other path is connected with the direct current input end of the second alternating current-direct current switching switch through a second rectifier and a second direct current voltage regulating switch; the alternating current output end and the direct current output end of the second alternating current-direct current switching switch are connected in parallel and then are divided into three paths, wherein one path is used as a second energy storage output end through the second energy storage output rotary switch, the other path is used as a second switching output end through the second switching output rotary switch, and the other path is used as a second switching output end through the second switching output rotary switch; the first energy storage output end and the second energy storage output end are connected in parallel and then connected with the first energy storage output interface, the first switching-on output end and the second switching-on output end are connected in parallel and then connected with the first switching-on output interface through the switching-on control operator, and the first switching-off output end and the second switching-off output end are connected in parallel and then connected with the first switching-off output interface through the switching-off control operator; the first energy storage output interface, the first closing output interface and the first opening output interface are used for connecting a switch cabinet relay for running-in test.
2. The break-in test supply vehicle for a switchgear circuit breaker of claim 1, characterized by: the second switch operation power supply is characterized in that a second energy storage output interface, a second switching-on output interface and a second switching-off output interface which are respectively connected with the first energy storage output interface, the first switching-on output interface and the first switching-off output interface in parallel are arranged on the top surface of the second switch operation power supply and are used for connecting a relay of another switch cabinet and simultaneously carrying out running-in test.
3. The break-in test supply vehicle for a switchgear circuit breaker of claim 1 or 2, characterized by: the circuit components of the programmable intelligent controller comprise the PLC integrated machine, a control box power switch, a control box power indicator lamp, a stabilized voltage power supply, an automatic control closing relay coil, an automatic control opening relay coil, an intelligent automatic control starting or stopping rotary switch, a reclosing starting or stopping rotary switch and a reset button switch which are correspondingly connected with each other; the circuit component of the switching-on control operator comprises a manual switching-on control button switch and an automatic switching-on control relay normally open contact which are correspondingly connected with each other; the circuit component of the opening control operator comprises a manual control opening button switch and an automatic control opening relay normally open contact which are correspondingly connected with each other.
4. A break-in test supply vehicle for a switchgear circuit breaker as claimed in claim 3, wherein: the circuit components of the programmable intelligent controller, which are correspondingly connected with each other, further comprise a normally closed contact of a switching-on and switching-off information input relay and a normally closed contact of an energy storage information input relay, wherein the normally closed contact of the switching-on and switching-off information input relay is controlled by a relay coil which reflects the switching-on and switching-off states on a switch cabinet circuit breaker which is subjected to running-in test, and the normally closed contact of the energy storage information input relay is controlled by a relay coil which reflects the energy storage states on the switch cabinet circuit breaker which is subjected to running-in test.
5. A break-in test supply vehicle for a switchgear circuit breaker as claimed in claim 3, wherein: the switching-on control operator is a parallel circuit of the manual control switching-on button switch and the normally open contact of the automatic control switching-on relay, and the switching-off control operator is a parallel circuit of the manual control switching-off button switch and the normally open contact of the automatic control switching-off relay.
6. A break-in test supply vehicle for a switchgear circuit breaker as claimed in claim 3, wherein: the circuit components of the programmable intelligent controller are correspondingly connected with each other, and the power input interface is connected with the power switch input end of the control box; the fire wire at the output end of the control box power switch is divided into two paths, wherein one path is connected with the fire wire input end of the stabilized voltage power supply, and the other path is connected with the first public end of the PLC all-in-one machine; the zero line of the power switch output end of the control box is divided into three paths, wherein one path is connected with the zero line input end of the stabilized voltage power supply, the other path is connected with the first output end of the PLC all-in-one machine through the automatic control switching-on relay coil, and the other path is connected with the second output end of the PLC all-in-one machine through the automatic control switching-off relay coil; the output end of the stabilized voltage power supply is connected with the power end of the PLC all-in-one machine; the control box power indicator lamp is connected to an output circuit of the control box power switch; the two ends of the intelligent automatic control start or stop rotary switch are respectively connected with a first input end and a second public end of the PLC all-in-one machine; two ends of the reclosing starting or stopping rotary switch are respectively connected with a second input end and a second public end of the PLC all-in-one machine; and two ends of the reset button switch are respectively connected with a third input end and a second common end of the PLC all-in-one machine.
7. The break-in test supply vehicle for a switchgear circuit breaker of claim 4, characterized by: the programmable intelligent controller is correspondingly connected with the normally closed contact of the switching-on and switching-off information input relay and the normally closed contact of the energy storage information input relay, wherein two ends of the normally closed contact of the switching-on and switching-off information input relay are respectively connected with a fourth input end and a second public end of the PLC all-in-one machine, and two ends of the normally closed contact of the energy storage information input relay are respectively connected with a fifth input end and a second public end of the PLC all-in-one machine.
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| CN202310219102.1A CN115877201B (en) | 2023-03-09 | 2023-03-09 | Running-in test power supply vehicle of switch cabinet circuit breaker |
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| JP3251486B2 (en) * | 1996-01-30 | 2002-01-28 | 三菱電機株式会社 | Circuit breaker and its test equipment |
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| CN206773133U (en) * | 2017-04-27 | 2017-12-19 | 南宁市高照电器有限责任公司 | Electric switch equipment combined test stand |
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