CN114764127A - Intelligent detection system and intelligent detection method for drawer type feeder switch cabinet - Google Patents
Intelligent detection system and intelligent detection method for drawer type feeder switch cabinet Download PDFInfo
- Publication number
- CN114764127A CN114764127A CN202110609426.7A CN202110609426A CN114764127A CN 114764127 A CN114764127 A CN 114764127A CN 202110609426 A CN202110609426 A CN 202110609426A CN 114764127 A CN114764127 A CN 114764127A
- Authority
- CN
- China
- Prior art keywords
- instruction
- switch cabinet
- test
- type feeder
- feeder switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
Abstract
The invention relates to an intelligent detection system and an intelligent detection method for a drawer type feeder switch cabinet, wherein the intelligent detection system comprises: the system comprises an upper computer, a PLC control module, an execution module and a test module, wherein the upper computer is used for receiving a test instruction packet input by a user, sending the test instruction packet to the PLC control module, receiving a test result of the test module from the PLC control module and determining the performance of the drawer type feeder switch cabinet according to the test result; the PLC control module is used for analyzing a plurality of execution instructions and logic time sequences of the execution instructions from the received test instruction packet, and correspondingly sending each execution instruction to the execution module or the test module according to the logic time sequences, so that the execution module performs switching operation on the drawer-type feeder switch cabinet according to the corresponding execution instruction, and the test module performs testing on the drawer-type feeder switch cabinet according to the corresponding execution instruction. By implementing the technical scheme of the invention, the overhauling work efficiency is greatly improved, and the human error risk is reduced.
Description
Technical Field
The invention relates to the field of power distribution systems, in particular to an intelligent detection system and an intelligent detection method for a drawer type feeder switch cabinet.
Background
In factory areas such as large-scale power plants, large-scale chemical plants, oil refineries and the like, a factory low-voltage alternating-current distribution board is an indispensable power supply system for factory power equipment, and a drawer type feeder switch cabinet is a switch cabinet which integrates a factory power motor, an electric valve, a heater and a transformer for power supply, protection, control and alarm.
The maintenance of the drawer type feeder switch cabinet is mainly divided into two parts of equipment inspection and electrical test. The electrical test comprises test items such as switch auxiliary contact verification, direct resistance measurement, insulation measurement, switching-on and switching-off operation, state switching function, alarm function, locking function verification and the like. At present, all the inspection and test projects need to be manually executed one by one, 4 detection personnel are needed to be simultaneously matched and operated to complete a switch cabinet test in the regular detection test work of a conventional drawer type feeder switch cabinet, and a plurality of tools such as a universal meter, a direct current stabilized voltage power supply, a current source, a test wire and a manual operation test box are cooperatively used to complete the function verification work of the drawer type feeder switch cabinet. Therefore, the execution efficiency is low, the test wiring needs to be replaced for multiple times, different test instruments are used, the execution is complex, the culture period of testers is long, the field test working progress and the quality control difficulty are high, and the human error risk is high.
Disclosure of Invention
The invention aims to solve the technical problems of low efficiency, complex operation and high risk of human error in the prior art, and provides an intelligent detection system and an intelligent detection method for a drawer type feeder switch cabinet.
The technical scheme adopted by the invention for solving the technical problem is as follows: an intelligent detection system of a drawer type feeder switch cabinet is constructed, comprising:
the device comprises an upper computer, a PLC control module, an execution module and a test module, wherein the test module and the execution module are respectively connected with corresponding interfaces of a tested drawer type feeder switch cabinet, and the PLC control module is respectively connected with the upper computer, the execution module and the test module;
the upper computer is used for receiving a test instruction packet input by a user, sending the test instruction packet to the PLC control module, receiving a test result of the test module from the PLC control module, and determining the performance of the drawer type feeder switch cabinet according to the test result;
the PLC control module is used for analyzing a plurality of execution instructions and logic time sequences of the execution instructions from the received test instruction packet, and correspondingly sending each execution instruction to the execution module or the test module according to the logic time sequences, so that the execution module performs switching operation on the drawer type feeder switch cabinet according to the corresponding execution instruction, the test module tests the drawer type feeder switch cabinet according to the corresponding execution instruction, and test results are returned to the upper computer.
Preferably, the upper computer is further configured to locate a fault point and output an alarm signal when the performance of the drawer-type feeder switch cabinet is judged to be unqualified.
Preferably, an indicator light probe is included for detecting the status of an indicator light of the drawer feeder switchgear, and,
and the upper computer is used for determining the current state of the drawer type feeder switch cabinet according to the detection result of the indicator light probe and judging whether the current state is consistent with the current switching operation.
Preferably, the execution module includes:
the local closing switch, the local opening switch and the remote locking command switch are connected with a local operation box interface of the drawer type feeder switch cabinet; and
and the remote closing switch and the remote opening switch are connected with the remote command interface of the drawer type feeder switch cabinet.
Preferably, the method further comprises the following steps:
and the power supply module is used for supplying power to the execution module, the test module, the PLC control module and the tested drawer type feeder switch cabinet.
Preferably, the test module comprises: resistance tester, insulation tester.
Preferably, the test command packet includes a closing test command packet, and,
the PLC control module is used for analyzing a closing instruction, a primary loop resistance measurement instruction, a secondary loop resistance measurement instruction, a primary loop interphase insulation measurement instruction, a primary loop relative ground insulation measurement instruction and a logic time sequence thereof from a received test instruction packet, and according to the logic time sequence: sending the closing instruction to the execution module so that the execution module performs closing operation on the drawer type feeder switch cabinet according to the closing instruction; sending the primary loop resistance measurement instruction to the resistance tester so that the resistance tester measures the phase resistance of the primary loop of the drawer-type feeder switch cabinet according to the primary loop resistance measurement instruction; sending the secondary loop resistance measurement instruction to the resistance tester so that the resistance tester measures the loop direct resistance of the secondary loop of the drawer-type feeder switch cabinet according to the secondary loop resistance measurement instruction; sending the primary loop interphase insulation measuring instruction to the insulation tester so that the insulation tester measures the interphase insulation of the primary loop of the drawer type feeder switch cabinet according to the primary loop interphase insulation measuring instruction; and sending the primary circuit relative ground insulation measurement instruction to the insulation tester so that the insulation tester measures the relative ground insulation of the primary circuit of the drawer type feeder switch cabinet according to the primary circuit relative ground insulation measurement instruction.
Preferably, the test instruction packet includes a gate-off test instruction packet, and,
the PLC control module is used for analyzing a brake-separating instruction, a secondary loop resistance measuring instruction, a fracture insulation testing instruction and a logic time sequence thereof from the received testing instruction packet, and according to the logic time sequence: sending the switching-off instruction to the execution module so that the execution module performs switching-off operation on the drawer type feeder switch cabinet according to the switching-off instruction; sending the secondary loop resistance measurement instruction to the resistance tester so that the resistance tester measures the loop direct resistance of the secondary loop of the drawer-type feeder switch cabinet according to the secondary loop resistance measurement instruction; and sending the fracture insulation test instruction to the insulation tester so that the insulation tester measures the fracture insulation of the drawer type feeder switch cabinet according to the fracture insulation test instruction.
Preferably, the test instruction packet comprises an alarm test instruction packet, and,
the upper computer is used for sending an alarm test instruction packet to the PLC control module, outputting fault simulation prompt information in a closing state and outputting fault elimination simulation prompt information after receiving a test result of the resistance tester in fault simulation;
the PLC control module is used for analyzing a fault alarm loop direct resistance measurement instruction, a fault elimination alarm loop direct resistance measurement instruction and a logic time sequence thereof from a received alarm test instruction packet after simulating a fault, and according to the logic time sequence: sending the fault alarm loop direct resistance measurement instruction to the resistance tester so that the resistance tester can measure the loop direct resistance of the alarm loop of the drawer type feeder switch cabinet according to the fault alarm loop direct resistance measurement instruction; and sending the alarm loop direct resistance measurement instruction to the resistance tester when the fault is eliminated so that the resistance tester can measure the loop direct resistance of the alarm loop of the drawer type feeder switch cabinet according to the alarm loop direct resistance measurement instruction when the fault is eliminated.
The invention also constructs an intelligent detection method of the drawer type feeder switch cabinet, which comprises the following steps:
the upper computer receives a test instruction packet input by a user and sends the test instruction packet to the PLC control module;
the PLC control module analyzes a plurality of execution instructions and logic time sequences of the execution instructions from the received test instruction packet, and correspondingly sends each execution instruction to an execution module or a test module according to the logic time sequences, so that the execution module performs switching operation on the drawer-type feeder switch cabinet according to the corresponding execution instruction, the test module tests the drawer-type feeder switch cabinet according to the corresponding execution instruction, and test results are returned to the upper computer;
and the upper computer receives the test result of the test module from the PLC control module and determines the performance of the drawer type feeder switch cabinet according to the test result.
The technical scheme provided by the invention can automatically complete the scheduled maintenance items of the drawer type feeder switch cabinet, and get rid of the backward test method that maintenance personnel gradually perform operations such as measurement, state verification and the like item by using common tools in the regular maintenance process of the drawer type feeder switch cabinet, thereby simplifying the content of manual operation, greatly improving the maintenance work efficiency and reducing the risk of human error.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort. In the drawings:
fig. 1 is a logic structure diagram of a first embodiment of the intelligent detection system for drawer-type feeder switch cabinets according to the present invention;
FIG. 2 is a logic structure diagram of a second embodiment of the drawer-type feeder switchgear intelligent detection system of the present invention;
FIG. 3A is a partial block diagram of a third embodiment of the drawer-type feeder switch cabinet and the intelligent detection system of the drawer-type feeder switch cabinet of the present invention;
FIG. 3B is a partial block diagram of a drawer-type feeder switchgear enclosure and an intelligent detection system of the drawer-type feeder switchgear enclosure of the present invention;
FIG. 3C is a partial block diagram of a drawer-type feeder switchgear enclosure and an intelligent detection system of the drawer-type feeder switchgear enclosure under test according to a third embodiment of the present invention;
fig. 4 is a flowchart of a first embodiment of the method for intelligently detecting a drawer-type feeder switch cabinet according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a logic structure diagram of a first embodiment of the intelligent detection system for drawer-type feeder switchgear according to the present invention, where the intelligent detection system 10 of the embodiment includes an upper computer 11, a PLC control module 12, an execution module 13, and a test module 14, where the test module 14 and the execution module 13 are respectively connected to corresponding interfaces of a tested drawer-type feeder switchgear, and the PLC control module 12 is respectively connected to the upper computer 11, the execution module 13, and the test module 14. The upper computer 11 is used for receiving a test instruction packet input by a user and sending the test instruction packet to the PLC control module 12, and receiving a test result of the test module 14 from the PLC control module 12 and determining the performance of the drawer-type feeder switch cabinet according to the test result; the PLC control module 12 is configured to parse a plurality of execution instructions and a plurality of logic time sequences of the execution instructions from the received test instruction packet, and respectively send each execution instruction to the execution module 13 or the test module 14 according to the logic time sequence, so that the execution module 13 performs a switching operation on the drawer-type feeder switch cabinet according to the corresponding execution instruction, and the test module 14 tests the drawer-type feeder switch cabinet according to the corresponding execution instruction, and returns a test result to the upper computer 11.
In the technical scheme of the embodiment, the intelligent detection system designed by combining the practical situation of the drawer type feeder switch cabinet has the following advantages:
1. the intelligent detection system is internally provided with the PLC control module, can realize the automatic execution of the detection process of the drawer type feeder switch cabinet, automatically finishes the scheduled inspection project of the drawer type feeder switch cabinet, and does not need to manually control the detection process. The comprehensive automatic operation also reduces the complexity of maintenance work and avoids the risk of human error;
2. the intelligent detection system is integrated with a test module and an execution module, and can independently complete the work of detecting and checking the functions of the drawer type feeder switch cabinet without additional test wiring, checking meters and tools, so that the disordered and complex pain points of the current overhaul field are solved;
3. the intelligent detection system has highly integrated operation capability, greatly reduces operation execution duration, improves working efficiency and saves overhaul period resources.
Therefore, the intelligent detection system can automatically complete the scheduled maintenance items of the drawer type feeder switch cabinet, get rid of the backward test method that maintenance personnel gradually perform operations such as measurement, state verification and the like item by using common tools in the regular maintenance process of the drawer type feeder switch cabinet, simplify the content of manual operation, greatly improve the maintenance work efficiency and reduce the risk of human error.
Further, the upper computer 11 may be a touch screen computer, and the test module 14 may include a resistance tester and an insulation tester.
Fig. 2 is a logical structure diagram of a second embodiment of the intelligent detection system for drawer-type feeder switch cabinets of the present invention, and the intelligent detection system 10 of this embodiment includes: the device comprises an upper computer 11, a PLC control module 12, an execution module 13, a test module 14, an indicator light probe 15 and a power module 16, wherein the test module 14 and the execution module 13 are respectively connected with corresponding interfaces of a tested drawer type feeder switch cabinet, and the PLC control module 12 is respectively connected with the upper computer 11, the execution module 13 and the test module 14. This embodiment differs from the embodiment shown in fig. 1 only by: the upper computer 11 is further configured to locate a fault point and output an alarm signal when determining that the performance of the drawer-type feeder switchgear to be tested is not qualified, where the alarm content may include a possible position of a fault inside the drawer-type feeder switchgear. The indicator light probe 15 is used for detecting the status (red light, green light, white light) of the indicator light of the drawer-type feeder switch cabinet, and the upper computer 11 is further used for determining the current status of the drawer-type feeder switch cabinet according to the detection result of the indicator light probe 15 and judging whether the current status is consistent with the current switch operation. The power module 17 is used for supplying power to the execution module 13, the test module 14, the PLC control module 12 and the drawer-type feeder switch cabinet to be tested, for example, the power module 17 may output a dc voltage of 110V/48/24V.
In one embodiment, the intelligent detection system consists of three layers, wherein the uppermost layer is an upper computer 11, a test line interface and the like; the middle layer is an electrical installation plate and is used for installing a PLC control module 12, an execution module 13 (a contactor and a relay), a power supply module 16 and the like; the bottom layer is a test instrument installation layer, and a resistance tester, an insulation tester and the like are installed on the bottom layer.
During testing, firstly, connecting an intelligent detection system with a drawer type feeder switch cabinet to be tested, and specifically, connecting one path of output of a power supply module of the intelligent detection system into the drawer type feeder switch cabinet; connecting a local closing switch, a local opening switch and a remote locking command switch in an execution module of the intelligent detection system with corresponding terminals of a local operation box interface of the drawer-type feeder switch cabinet respectively; a remote closing switch and a remote opening switch in an execution module of the intelligent detection system are respectively connected with corresponding terminals of a remote command interface of the drawer-type feeder switch cabinet; and a resistance tester and an insulation tester of the intelligent detection system are respectively connected with a primary loop, a secondary loop, an alarm loop and the like of the drawer type feeder switch cabinet. After the intelligent detection system is connected with the drawer-type feeder switch cabinet to be tested in the mode, a user can select the type of the drawer-type feeder switch cabinet to be tested through the upper computer and click to start testing, and then the upper computer sends the corresponding test instruction packet to the PLC control module.
In an optional embodiment, the test instruction packet includes a switch-on test instruction packet, and the PLC control module is configured to parse a switch-on instruction, a primary circuit resistance measurement instruction, a secondary circuit resistance measurement instruction, a primary circuit inter-phase insulation measurement instruction, a primary circuit relative ground insulation measurement instruction, and a logic timing thereof from the received test instruction packet, and according to the logic timing: sending a closing instruction to an execution module so that the execution module performs closing operation on the drawer type feeder switch cabinet according to the closing instruction; sending the primary loop resistance measurement instruction to a resistance tester so that the resistance tester measures the phase resistance of the primary loop of the drawer type feeder switch cabinet according to the primary loop resistance measurement instruction; sending the secondary loop resistance measurement instruction to a resistance tester so that the resistance tester measures the loop direct resistance of the secondary loop of the drawer-type feeder switch cabinet according to the secondary loop resistance measurement instruction; sending the primary loop interphase insulation measurement instruction to an insulation tester so that the insulation tester measures the interphase insulation of the primary loop of the drawer type feeder switch cabinet according to the primary loop interphase insulation measurement instruction; and sending the primary circuit relative ground insulation measurement instruction to an insulation tester so that the insulation tester measures the relative ground insulation of the primary circuit of the drawer type feeder switch cabinet according to the primary circuit relative ground insulation measurement instruction.
In an optional embodiment, the test instruction packet includes a switching-off test instruction packet, and the PLC control module is configured to parse a switching-off instruction, a secondary loop resistance measurement instruction, a fracture insulation test instruction, and a logic timing sequence thereof from the received test instruction packet, and according to the logic timing sequence: the opening instruction is sent to the execution module, so that the execution module performs opening operation on the drawer type feeder switch cabinet according to the opening instruction; sending the secondary loop resistance measurement instruction to a resistance tester so that the resistance tester measures the loop direct resistance of the secondary loop of the drawer-type feeder switch cabinet according to the secondary loop resistance measurement instruction; and sending the fracture insulation test instruction to an insulation tester so that the insulation tester measures the fracture insulation of the drawer type feeder switch cabinet according to the fracture insulation test instruction.
In an optional embodiment, the test instruction packet comprises an alarm test instruction packet, and the upper computer is configured to issue the alarm test instruction packet to the PLC control module, and output the fault simulation prompt information in a switch-on state, and output the fault elimination simulation prompt information after receiving a test result of the resistance tester during fault simulation; the PLC control module is used for analyzing a fault alarm loop direct resistance measurement instruction, a fault elimination alarm loop direct resistance measurement instruction and a logic time sequence thereof from a received alarm test instruction packet after simulating a fault, and according to the logic time sequence: sending a direct resistance measurement instruction of the alarm loop in the fault to a resistance tester so that the resistance tester can measure the loop direct resistance of the alarm loop of the drawer-type feeder switch cabinet according to the direct resistance measurement instruction of the alarm loop in the fault; and sending the direct resistance measurement instruction of the alarm loop during fault elimination to the resistance tester so that the resistance tester can measure the loop direct resistance of the alarm loop of the drawer type feeder switch cabinet according to the direct resistance measurement instruction of the alarm loop during fault elimination.
Through the technical scheme of the embodiment, the intelligent detection system can automatically complete the detection work of the functions of switch contact verification, direct resistance measurement, insulation measurement, closing/opening operation, state switching function, alarm function, locking function verification and the like of the drawer type feeder switch cabinet, and is greatly convenient for field execution of detection test work of the drawer type feeder switch cabinet during overhaul and daily period.
In the embodiment shown in fig. 3A, 3B and 3C, the intelligent detection system includes a PLC control module, an execution module 13, a resistance tester, an insulation tester, a power supply module, and an indicator light probe, and the execution module 13 includes: the remote control system comprises a local closing switch, a local opening switch, a remote command locking switch, a remote closing switch and a remote opening switch.
With reference to fig. 3A to 3C, the internal structure of the drawer-type feeder switchgear to be tested is shown by the dashed box, and the reference numbers in the figure are as follows:
001JA is a primary contactor, a primary contact is connected with a primary (main) loop of the drawer type feeder switch cabinet, and a secondary contact is connected with a secondary (control) loop of the drawer type feeder switch cabinet;
001JS is a primary isolating switch, the main contact of which is connected with a primary loop of the drawer type feeder switch cabinet and is operated by the handle transmission of the drawer type feeder switch cabinet;
001SM is a test position state contact, and a handle of the drawer type feeder switch cabinet is closed when being placed at a test position;
001XR is a remote switching-on command transmission relay, and a remote signal controls the relay to switch the 001JA state;
002XR is a remote opening command transmission relay, and a remote signal controls the relay to switch the 001JA state;
001XD is a brake-separating relay, and 001JA is subjected to brake separation after excitation;
001XK is a fault alarm relay, and the electric appliance is demagnetized after the internal fault of the drawer type feeder switch cabinet;
001BN is a secondary circuit wiring terminal strip which is connected with external secondary circuit wiring terminals inside and outside the drawer type feeder switch cabinet;
001LA is a status indicator light of the drawer type feeder switch cabinet, and has three colors of green, red and white;
002JS is brake-separating lock connecting piece, when it is disconnected, and when the local operation mode is executed, the distant command can not be used for separating the brake 001 JA;
002XK is a state relay of the drawer type feeder switch cabinet, and after the test is plugged, the electric appliance is excited;
003JS is a self-holding locking connecting piece, and 001JA can realize electric self-holding when the lock is closed;
002PJ is the grounding operation box interface (test terminal) of the drawer type feeder switch cabinet, which is used for connecting the intelligent detection system during the test, and is used for connecting the local operation box in the practical application;
001FU is a main loop fuse, and the auxiliary contact feeds back the state of the fuse;
002BN is a primary loop wiring terminal row which is connected with the inner and outer primary loop wiring terminals of the drawer type feeder switch cabinet;
003JA is a secondary loop protection idle switch;
005FU is the pilot lamp loop protection air switch.
The closing operation principle of the drawer-type feeder switch cabinet is explained as follows:
when remote switching-on is needed, a 001JS handle can be manually closed, a 001XR intermediate relay is excited by a remote switching-on command, an excitation coil of a 001JA contactor is electrified, a 001JA main contact is attracted, a 001JA auxiliary contact is in a turnover state, the drawer type feeder switch cabinet completes switching-on operation of a primary loop and achieves self-holding, and a 001LA displays that a red light is on according to the 001JA auxiliary contact state;
when on-site switching-on is needed, the 001JS handle is manually closed, the excitation coil of the 001JA contactor is directly electrified through an on-site operation box interface (002PJ port) of the drawer type feeder switch cabinet, the 001JA main contact is attracted, the 001JA auxiliary contact is in a turnover state, the drawer type feeder switch cabinet completes primary loop switching-on operation and achieves self-holding, and the 001LA displays that a red light is on according to the 001JA auxiliary contact state.
The operation principle of the drawer-type feeder switch cabinet for opening is explained as follows:
when a remote brake is required, a remote brake-separating command enables a 002XR intermediate relay to be excited, 001XD is excited, a 001JA contactor excitation coil is de-energized, a 001JA main contact is disconnected, a 001JA auxiliary contact is in a turnover state, a drawer type feeder switch cabinet completes the brake-separating operation of a primary loop, a 001LA displays that a green light is on according to the state of the 001JA auxiliary contact, and a 001JS handle is manually disconnected;
when local brake opening is needed, the 001XD is directly excited through a grounding operation box interface (002PJ port) of the drawer type feeder switch cabinet, the excitation coil of the 001JA contactor loses power, the 001JA main contact is disconnected, the 001JA auxiliary contact is in a turnover state, the drawer type feeder switch cabinet completes the brake opening operation of a primary loop, the 001LA displays that a green light is on according to the 001JA auxiliary contact state, and the 001JS handle is manually disconnected.
The detection principle of the drawer-type feeder switch cabinet is explained as follows:
firstly, referring to fig. 3A to 3C, the local closing switch, the local opening switch, and the remote locking command switch in the execution module 13 are respectively connected to the grounding operation box interface (002 PJ: 1-4) of the drawer-type feeder switch cabinet; the remote closing switch and the remote opening switch in the execution module 13 are respectively connected with a remote command interface (001 BN: 1-3 terminal) of the drawer type feeder switch cabinet.
When detecting the conduction performance of the primary loop of the drawer-type feeder switch cabinet, firstly, the PLC control module controls the power module to output a matched voltage (DC24V/48V/110V), provides a secondary direct-current power supply for the drawer-type feeder switch cabinet through 001BN:23-24, and sends a command to the 001XR relay through a remote switch-on switch in the control execution module 13, and at the moment, the drawer-type feeder switch cabinet is switched on. Then, the resistance measuring instrument executes the command of the PLC control module, and passes 002 BN: the terminal L1-T1/L2-T2/L3-T3 measures the A/B/C phase resistance of the primary loop of the drawer type feeder switch cabinet, the measured result is returned to an upper computer, the upper computer automatically judges the conduction performance of the primary loop of the drawer type feeder switch cabinet, if the primary loop is not qualified, an alarm is given, and if the primary loop is qualified, the test result is automatically stored. After detection, the PLC control module controls the drawer type feeder switch cabinet to be opened by controlling the 002XR relay.
When the insulation performance of the primary loop of the drawer type feeder switch cabinet is detected, firstly, the PLC control module controls the power supply module to output matched voltage (DC24V/48V/110V), secondary direct current power is provided for the drawer type feeder switch cabinet through 001BN:23-24, a command is sent to the 001XR relay through a remote switch-on switch in the control execution module 13, and at the moment, the drawer type feeder switch cabinet is switched on. Then, the insulation tester module executes the instructions of the PLC control module, and passes the 002 BN: the L1-L2/L2-L3/L1-L3 terminals measure the phase-to-phase insulation of the a/B/C phase of the primary circuit of the drawer feeder switchgear and, by 002 BN: and the L1-PE/L2-PE/L3-PE terminal measures the relative insulation of the A/B/C phase of the primary loop of the drawer type feeder switch cabinet, the measurement result is returned to an upper computer, the upper computer automatically judges the insulation performance of the primary loop of the drawer type feeder switch cabinet when the primary loop is switched on, if the primary loop is not qualified, an alarm is given, and if the primary loop is qualified, the test result is automatically stored. After detection, the 002XR relay is controlled to control the opening of the drawer type feeder switch cabinet.
In addition, when opening, the insulation tester executes the instruction of the PLC control module, and passes 002 BN: the terminal L1-T1/L2-T2/L3-T3 measures the insulation of an A/B/C three-phase fracture of a primary loop (a primary contact of a 001JA contactor) of the drawer type feeder switch cabinet, then the measurement result is returned to an upper computer, the upper computer automatically judges the insulation performance of the primary loop of the drawer type feeder switch cabinet during opening, an alarm is given if the primary loop of the drawer type feeder switch cabinet is not qualified, and the test result is automatically stored if the primary loop of the drawer type feeder switch cabinet is qualified.
When detecting the direct resistance of the secondary loop of the drawer type feeder switch cabinet, firstly, the PLC control module controls the power supply module to output matched voltage (DC24V/48V/110V), provides secondary direct current power for the drawer type feeder switch cabinet through 001BN:23-24 and controls the drawer type feeder switch cabinet to be switched on by sending a command to the 001XR relay. And then, the resistance tester executes the instruction of the PLC control module, and acquires the direct resistance of a secondary loop of the drawer type feeder switch cabinet on a closed loop through a 001BN:4-6/4-5/7-8/8-9 terminal, if the secondary loop is not qualified, an alarm is given, and if the secondary loop is qualified, the test result is automatically stored.
In addition, the PLC control module controls the drawer type feeder switch cabinet to be opened by controlling the 002XR relay, the resistance tester executes the instruction of the PLC control module, the loop direct resistance of the secondary loop of the drawer type feeder switch cabinet is collected through a 001BN:4-6/4-5/7-8/8-9 terminal when the secondary loop is opened, an alarm is given if the secondary loop is not qualified, and the test result is automatically stored if the secondary loop is qualified.
When the loop direct resistance of the alarm loop of the drawer type feeder switch cabinet is detected, the PLC control module controls the power supply module to output matched voltage (DC24V/48V/110V), secondary direct-current power is provided for the drawer type feeder switch cabinet through 001BN:23-24, and the switch-on is controlled through a relay to 001 XR. And then, the upper computer sends out voice prompt to manually operate to simulate the fault, for example, a fuse is removed. And after the user carries out fault simulation, the drawer type feeder switch cabinet automatically trips. At the moment, the resistance tester executes the instruction of the PLC control module, the loop direct resistance of the alarm loop is measured through 001BN:10-11, the result is returned to the upper computer, the upper computer automatically judges the performance of the alarm loop according to the resistance measured value, if the performance is not qualified, the alarm is given, and if the performance is not qualified, the test result is automatically stored. And then, the upper computer sends out a voice prompt manual operation to remove the fault signal, after the user carries out fault simulation removal, the resistance tester executes the instruction of the PLC control module, measures the loop direct resistance of the alarm loop through 001BN:10-11, returns the result to the upper computer, and the upper computer confirms the alarm recovery. And finally, the PLC control module controls the drawer type feeder switch cabinet to be switched on by controlling the 001XR relay, confirms that the 001JA is correctly attracted, and gives an alarm without abnormal condition.
When the indicator light of the alarm loop of the drawer type feeder switch cabinet is detected, firstly, in the process of testing the drawer type feeder switch cabinet, the indicator light on the drawer type feeder switch cabinet can switch the display of the indicator light according to the current state, at the moment, the indicator light probe detects the 001LA three-color indicator light and sends the detection result to the upper computer, the upper computer judges whether the current state is consistent with the state in the actual testing process, so that whether the indicator light normally indicates or not is automatically judged, unqualified alarm is carried out, and the test result is automatically stored if qualified.
In addition, in the process of testing the drawer type feeder switch cabinet, the PLC control module outputs an alarm prompt through the alarm module according to the detection result if the judgment result shows that the drawer type feeder switch cabinet is abnormal.
Table 1 shows the results of the comparison between the prior art solution and the solution of this example:
TABLE 1
Fig. 4 is a flowchart of a first embodiment of the intelligent detection method for a drawer-type feeder switch cabinet according to the present invention, where the intelligent detection method of the embodiment is applied to a PLC control module of an intelligent detection system, and reference may be made to the foregoing description for the structure of the intelligent detection system, which is not repeated herein. The intelligent detection method of the embodiment specifically comprises the following steps:
s10, the upper computer receives a test instruction packet input by a user and issues the test instruction packet to the PLC control module;
s20, the PLC control module analyzes a plurality of execution instructions and logic time sequences of the execution instructions from the received test instruction packet, and correspondingly sends each execution instruction to an execution module or a test module according to the logic time sequences, so that the execution module performs switching operation on the drawer-type feeder switch cabinet according to the corresponding execution instruction, the test module tests the drawer-type feeder switch cabinet according to the corresponding execution instruction, and test results are returned to the upper computer;
and S30, receiving the test result of the test module from the PLC control module by the upper computer, and determining the performance of the drawer type feeder switch cabinet according to the test result.
The technical scheme of the embodiment can realize the automation of the function verification work of the drawer type feeder switch cabinet, improve the working efficiency and save labor and working time resources.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. An intelligent detection system of drawer type feeder switch cabinet is characterized by comprising: the device comprises an upper computer, a PLC control module, an execution module and a test module, wherein the test module and the execution module are respectively connected with corresponding interfaces of a tested drawer type feeder switch cabinet, and the PLC control module is respectively connected with the upper computer, the execution module and the test module;
the upper computer is used for receiving a test instruction packet input by a user, sending the test instruction packet to the PLC control module, receiving a test result of the test module from the PLC control module, and determining the performance of the drawer type feeder switch cabinet according to the test result;
the PLC control module is used for analyzing a plurality of execution instructions and logic time sequences of the execution instructions from the received test instruction packet, and correspondingly sending each execution instruction to the execution module or the test module according to the logic time sequences, so that the execution module performs switching operation on the drawer type feeder switch cabinet according to the corresponding execution instruction, the test module tests the drawer type feeder switch cabinet according to the corresponding execution instruction, and test results are returned to the upper computer.
2. The intelligent detection system of claim 1,
and the upper computer is also used for positioning a fault point and outputting an alarm signal when judging that the performance of the drawer type feeder switch cabinet is unqualified.
3. The intelligent detection system of claim 1, further comprising an indicator light probe for detecting a status of an indicator light of the drawer-type feeder switch cabinet, and,
and the upper computer is used for determining the current state of the drawer type feeder switch cabinet according to the detection result of the indicator light probe and judging whether the current state is consistent with the current switching operation.
4. The intelligent detection system of claim 1, wherein the execution module comprises:
the local closing switch, the local opening switch and the remote locking command switch are connected with a local operation box interface of the drawer type feeder switch cabinet; and
and the remote closing switch and the remote opening switch are connected with the remote command interface of the drawer type feeder switch cabinet.
5. The intelligent detection system of claim 1, further comprising:
and the power supply module is used for supplying power to the execution module, the test module, the PLC control module and the tested drawer type feeder switch cabinet.
6. The intelligent detection system of any one of claims 1-5, wherein the testing module comprises: resistance tester, insulation tester.
7. The intelligent detection system of claim 6, wherein the test instruction packet comprises a closing test instruction packet, and further,
the PLC control module is used for analyzing a closing instruction, a primary loop resistance measurement instruction, a secondary loop resistance measurement instruction, a primary loop interphase insulation measurement instruction, a primary loop relative ground insulation measurement instruction and a logic time sequence thereof from a received test instruction packet, and according to the logic time sequence: sending the closing instruction to the execution module so that the execution module performs closing operation on the drawer type feeder switch cabinet according to the closing instruction; sending the primary loop resistance measurement instruction to the resistance tester so that the resistance tester can measure the phase resistance of the primary loop of the drawer type feeder switch cabinet according to the primary loop resistance measurement instruction; sending the secondary loop resistance measurement instruction to the resistance tester so that the resistance tester measures the loop direct resistance of the secondary loop of the drawer-type feeder switch cabinet according to the secondary loop resistance measurement instruction; sending the primary loop interphase insulation measuring instruction to the insulation tester so that the insulation tester measures the interphase insulation of the primary loop of the drawer type feeder switch cabinet according to the primary loop interphase insulation measuring instruction; and sending the primary circuit relative ground insulation measurement instruction to the insulation tester so that the insulation tester measures the relative ground insulation of the primary circuit of the drawer type feeder switch cabinet according to the primary circuit relative ground insulation measurement instruction.
8. The intelligent detection system of claim 6, wherein the test instruction packet comprises a brake-off test instruction packet, and further,
the PLC control module is used for analyzing a brake separating instruction, a secondary loop resistance measuring instruction, a fracture insulation testing instruction and a logic time sequence thereof from the received testing instruction packet, and according to the logic time sequence: sending the switching-off instruction to the execution module so that the execution module performs switching-off operation on the drawer type feeder switch cabinet according to the switching-off instruction; sending the secondary loop resistance measurement instruction to the resistance tester so that the resistance tester measures the loop direct resistance of the secondary loop of the drawer-type feeder switch cabinet according to the secondary loop resistance measurement instruction; and sending the fracture insulation test instruction to the insulation tester so that the insulation tester measures the fracture insulation of the drawer type feeder switch cabinet according to the fracture insulation test instruction.
9. The intelligent detection system of claim 6, wherein the test instruction packet comprises an alarm test instruction packet, and further,
the upper computer is used for sending an alarm test instruction packet to the PLC control module, outputting fault simulation prompt information in a closing state and outputting fault simulation elimination prompt information after receiving a test result of the resistance tester in fault simulation;
the PLC control module is used for analyzing a fault alarm loop direct resistance measurement instruction, a fault elimination alarm loop direct resistance measurement instruction and a logic time sequence thereof from a received alarm test instruction packet after simulating a fault, and according to the logic time sequence: sending the alarm circuit direct resistance measurement instruction in the fault to the resistance tester so that the resistance tester measures the circuit direct resistance of the alarm circuit of the drawer type feeder switch cabinet according to the alarm circuit direct resistance measurement instruction in the fault; and sending the alarm loop direct resistance measurement instruction to the resistance tester when the fault is eliminated so that the resistance tester measures the loop direct resistance of the alarm loop of the drawer type feeder switch cabinet according to the alarm loop direct resistance measurement instruction when the fault is eliminated.
10. An intelligent detection method for a drawer type feeder switch cabinet is characterized by comprising the following steps:
the upper computer receives a test instruction packet input by a user and sends the test instruction packet to the PLC control module;
the PLC control module analyzes a plurality of execution instructions and logic time sequences of the execution instructions from the received test instruction packet, and correspondingly sends each execution instruction to an execution module or a test module according to the logic time sequences, so that the execution module performs switching operation on the drawer-type feeder switch cabinet according to the corresponding execution instruction, the test module tests the drawer-type feeder switch cabinet according to the corresponding execution instruction, and test results are returned to the upper computer;
and the upper computer receives the test result of the test module from the PLC control module and determines the performance of the drawer type feeder switch cabinet according to the test result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609426.7A CN114764127A (en) | 2021-06-01 | 2021-06-01 | Intelligent detection system and intelligent detection method for drawer type feeder switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609426.7A CN114764127A (en) | 2021-06-01 | 2021-06-01 | Intelligent detection system and intelligent detection method for drawer type feeder switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114764127A true CN114764127A (en) | 2022-07-19 |
Family
ID=82364525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110609426.7A Pending CN114764127A (en) | 2021-06-01 | 2021-06-01 | Intelligent detection system and intelligent detection method for drawer type feeder switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114764127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498547A (en) * | 2022-11-15 | 2022-12-20 | 江苏安靠智能输电工程科技股份有限公司 | Miniaturized handcart-type high tension switchgear |
-
2021
- 2021-06-01 CN CN202110609426.7A patent/CN114764127A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498547A (en) * | 2022-11-15 | 2022-12-20 | 江苏安靠智能输电工程科技股份有限公司 | Miniaturized handcart-type high tension switchgear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9606185B2 (en) | Intelligent calibration system for backup-power automatic switching device | |
| CN104849581B (en) | Overcurrent overload protection device combines strike-machine and monitors system and method | |
| CN106383308B (en) | Automatic opening and closing test equipment for charge control circuit breaker | |
| CN101556324A (en) | Pressure test device and method thereof for multi-epitope electric energy meter | |
| CN106646209A (en) | High and low temperature trip intelligent test device for cost-control circuit breaker | |
| CN202929141U (en) | Multi-channel integrative test system | |
| CN108089083A (en) | Alternating-current charging pile detecting system | |
| CN109581216A (en) | VD4 Medium voltage switch or circuit breaker all-around test stand and its dependency structure | |
| CN114764127A (en) | Intelligent detection system and intelligent detection method for drawer type feeder switch cabinet | |
| CN106569108B (en) | A kind of the resistance test system and detection method of interchanger | |
| CN206161810U (en) | Intelligent control box relay test appearance | |
| CN104898049A (en) | Electromagnetic circuit breaker debugging and detection equipment system | |
| CN206161804U (en) | Accuse circuit breaker dropout testing arrangement is taken to intelligence | |
| CN112213592A (en) | Distributed terminal double-loop network self-healing transfer detection system and method thereof | |
| CN208506590U (en) | The test equipment of group control system control cabinet | |
| CN111722041A (en) | Intelligent detection method and system for low-voltage distribution board | |
| CN116660652A (en) | Multi-meter multi-item full-coverage automatic detection system and method for EMS test of electric energy meter | |
| CN217008030U (en) | Intelligent general relay calibration equipment | |
| CN115980438A (en) | Method and system for acquiring double-bus electric energy metering voltage of transformer substation | |
| CN105006891A (en) | On-line visual remote control terminal and method used for transformer station background upgrading | |
| CN210982617U (en) | Switch drawer test circuit and test equipment | |
| CN104849584B (en) | The function test system and method for overload protection fastener | |
| CN210722065U (en) | Fault simulation display device | |
| CN204719197U (en) | A kind of electro-magnetic circuit breaker debugging checkout equipment system | |
| CN202758045U (en) | Apparatus used for detecting drive circuit of electromagnetic induction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |