CN112002593B - Disconnecting switch operating mechanism with modularized control loop design and use method - Google Patents
Disconnecting switch operating mechanism with modularized control loop design and use method Download PDFInfo
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- CN112002593B CN112002593B CN202010882866.5A CN202010882866A CN112002593B CN 112002593 B CN112002593 B CN 112002593B CN 202010882866 A CN202010882866 A CN 202010882866A CN 112002593 B CN112002593 B CN 112002593B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
Abstract
The invention discloses a control loop modularized disconnecting switch operating mechanism, which comprises a control loop modularized disconnecting switch operating mechanism, a control loop modularized disconnecting switch operating mechanism and a control loop modularized disconnecting switch operating mechanism, wherein the control loop modularized disconnecting switch operating mechanism comprises a box body with a cover plate; a motor is arranged in the box body, and the output end of the motor is respectively connected with the input ends of the action unit and the auxiliary switch component through a transmission device; the motor is connected with the control unit through a wire and is controlled by the control unit; the control unit is respectively and electrically connected with the auxiliary switch assembly, the opening and closing assembly and the temperature control assembly; the invention effectively solves the problem of the current isolating switch operation box.
Description
Technical Field
The invention relates to the technical field of isolating switch devices, in particular to an isolating switch operating mechanism with a control loop in a modularized design and a use method thereof.
Background
The electric operating mechanism is widely applied to the isolating switch and is used for driving the isolating switch to perform opening and closing operation, at present, an opening and closing position signal of the electric operating mechanism of the isolating switch box body is sent by an auxiliary switch, the auxiliary switch is switched before the mechanism is in place, and an opening and closing in-place signal of the mechanism cannot be accurately sent out at any time; the mechanism box body is made of stainless steel, only the heater is arranged in the mechanism box body, no other treatment is performed, condensation, corrosion and jamming of internal electric components and mechanical parts are easily caused under the conditions of high temperature and high humidity, the service life of equipment is shortened, and the operation failure rate of the equipment is high; the secondary control loop of the electric operating mechanism mainly realizes the opening and closing operation of the isolating switch through mutual logic interlocking among the relays, the secondary elements and the contacts are used more, the fault rate is high, and after the faults occur, the faults are checked by professional staff according to drawings, the fault checking time is long, and each secondary wiring of each relay is fixed by bolts, so that the problems of troublesome disassembly and assembly of damaged components, low working efficiency and the like are solved.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the utility model provides a control circuit modularization design's isolator operating device, fine solution above-mentioned problem, its simple structure, need not the relay and carry out logic control, the trouble phenomenon is easy to be examined, and all modularization parts all adopt plug-in structure, and it is convenient to change, need not professional technical personnel, and the transformer substation operating personnel can accomplish the change work.
In order to solve the problems, the invention provides the following technical scheme:
the isolating switch operating mechanism comprises a control loop modularized design, wherein the isolating switch operating mechanism comprises a box body with a cover plate; a motor is arranged in the box body, and the output end of the motor is respectively connected with the input ends of the action unit and the auxiliary switch component through a transmission device; the motor is connected with the control unit through a wire and is controlled by the control unit; the control unit is respectively and electrically connected with the auxiliary switch assembly, the opening and closing assembly and the temperature control assembly;
the auxiliary switch assembly comprises an auxiliary switch body; the auxiliary switch body is provided with a fixed seat and a connecting flange which are used for being matched with the box body for detachable installation; an auxiliary switch secondary wire is also arranged on the auxiliary switch body; the other end of the secondary line of the auxiliary switch is arranged on the first plug; the box body is also provided with a second plug head connected with the secondary wire; the first plug head is detachably and electrically connected with the second plug head;
the opening and closing assembly comprises an opening and closing in-place switch controlled by the action of the action unit;
the control unit comprises an interactive panel embedded on the box body; a main control box is arranged on the back of the interactive panel; a third plug head is also arranged on the main control box; the opening and closing assembly, the motor and the temperature control executing element are respectively connected with a fourth plug head arranged in the box body through secondary wires, and a detachable electric connection structure is arranged between the third plug head and the fourth plug head.
Preferably, the cover plate of the box body is provided with a mounting hole; the main control box passes through the mounting hole to be arranged; the main control box is also provided with a connecting block, and the main control box is detachably arranged on the box body through the connecting block and the bolt assembly; the third plug head is arranged at the end part of the main control box which is left at the inner side of the box body; the inner side wall of the box cover plate is also provided with a secondary schematic diagram, and the outer side wall of the box cover plate is also provided with a two-dimensional code diagram.
Preferably, the opening and closing assembly further comprises an opening limit switch and a closing limit switch; and the opening in-place switch and the closing in-place switch are both proximity micro-switches.
Preferably, the motor is a stepping motor structure controlled by the main control box, the action unit is of a rotating rod structure, and the opening limit switch, the opening in-place switch, the closing in-place switch and the closing limit switch are symmetrically arranged on two sides of the action unit respectively.
Preferably, the temperature control component comprises a heat insulation cotton layer laid on the inner wall of the box body; the temperature and humidity sensor, the heater and the dehumidifier are respectively and electrically connected with the main control box through wires.
Preferably, the second plug and the fourth plug are arranged on the same male plug board, the male plug board is fixed in the box body, and the female plug board is detachably and electrically connected with the male plug board; the female board that inserts links to each other with the outside secondary cable of box.
Further, the board surface is divided into three functional areas on the male plug board through identification division; the male plug board and the female plug board are detachably installed through the cooperation of bolts and threaded holes.
Preferably, the interactive panel is an LED screen; the interactive panel is provided with a manual automatic operation knob, a manual opening button, a manual closing button, an emergency stop button and a reset button in an integrated manner, and the interactive panel is also provided with an operation indicator lamp, an alarm indicator lamp, a locked-rotor indicator lamp, a position-closing indicator lamp, a position-dividing indicator lamp and a temperature control indicator lamp.
The invention also discloses a using method of the disconnecting switch operating mechanism with the modularized design of the control loop, which comprises the following steps:
s1, assembling an operation box and connecting corresponding circuit cables;
when the operation box is assembled, the auxiliary switch body is installed in the box body by utilizing the fixing seat and the connecting flange on the auxiliary switch assembly, the first plug is aligned to the second plug for installation, the main control box is installed in the box body by utilizing the connecting block on the main control box to be matched with the bolt assembly, and the third plug is aligned to the fourth plug for installation; the male plug board and the female plug board are connected and then electrified to connect the internal circuit of the operation box, and each component in the box body is reset;
s2, the operation box runs automatically, the inside of the box body is adjusted through the temperature control assembly, and a corresponding indicator lamp is lightened;
after an internal circuit of the operation box is connected, the main control box performs power control on the heater and the dehumidifier according to the electric signals transmitted by the temperature and humidity sensor, the temperature and humidity environment in the box is dynamically adjusted, and meanwhile, the real-time temperature and humidity in the box are displayed on the interactive panel, and the operation indicator lamp and the corresponding temperature control indicator lamp are lightened;
s3, carrying out operation and maintenance inspection on the operation box, and controlling the internal elements of the box to execute corresponding operations by an inspection personnel through the main control box according to the indication of the indication lamp on the operation box; when the auxiliary switch assembly or the control unit fails, an alarm indicator light on the interactive panel is on so as to remind operation and maintenance personnel to check; the operation and maintenance personnel inputs a brake-separating instruction to the main control box, the main control box outputs a control signal to the motor, the motor drives the action unit to rotate towards the brake-separating in-place switch until the action unit presses the brake-separating limit switch and the brake-separating in-place signal switch, the brake-separating limit switch stops the movement of the motor, and the brake-separating in-place signal switch sends a brake-separating in-place signal to the main control box;
s4, checking a unit which is specifically required to be replaced by operation and maintenance personnel, and if the unit is required to be replaced by the control unit, entering a step S5; if the auxiliary switch assembly is required to be replaced, the step S6 is carried out; if the whole operation box needs to be replaced, entering a step 7;
s5, replacing a control unit in the operation box;
when the control unit is replaced, the third plug head on the original control unit is pulled out from the fourth plug head, the bolt assembly on the connecting block is loosened, and finally the whole control unit is taken out from the box body; when a new control unit is installed, the disassembly and assembly steps are reversed;
s6, replacing an auxiliary switch assembly in the operation box;
when the auxiliary switch assembly is replaced, the first plug head on the original auxiliary switch assembly is pulled out from the second plug head, the fixing seat and the connecting flange are detached from the box body, and finally the whole auxiliary switch assembly is taken out; after that, when a new auxiliary switch assembly is installed, the disassembly and assembly steps are opposite to those described above;
s7, replacing the operation box; when the operation box is replaced; the cable plug head connected with the outside inside of the box body of the mechanism is detached, the anchor ear between the transmission device and the action unit in the box body is detached, and the mechanism box can be quickly detached by detaching the backboard fixing bolt of the box body;
s8, performing closing operation; the operation and maintenance personnel inputs a closing instruction to the main control box, the main control box outputs a control signal to the motor, the motor drives the action unit to rotate towards the closing in-place switch until the action unit presses the closing limit switch and the closing in-place signal switch, the closing limit switch stops the movement of the motor, and the closing in-place signal switch sends a closing in-place signal to the main control box;
s9, after the corresponding units are replaced, switching on an internal circuit of the operation box and resetting all parts in the box body to finish one-time inspection maintenance work; thereafter, steps S2 to S8 are looped.
In the step S3 and the step S8, when the motor fails in the process of executing the opening operation or the closing operation, an alarm indicator lamp and a locked rotor indicator lamp on the interactive panel are on; prompting operation and maintenance personnel to check the motor; extinguishing the locked-rotor indicator lamp after the motor fault is discharged; in the process of executing the opening operation or the closing operation in the step S3 and the step S8, the main control box detects corresponding position signals of the opening in-place switch and the closing in-place switch, if the position signals are not detected in 10S, the opening and closing operation is stopped, and the alarm indicator lamp is lightened.
The invention has the beneficial effects that:
1. according to the invention, the secondary line connection port is subjected to modularized treatment, so that the secondary line is not required to be dismantled in the process of replacing the auxiliary switch, and the operation flow is optimized; meanwhile, the logic control of each device is further replaced by a control unit from the original numerous secondary line relays, and the interfaces of the control unit and the secondary lines are subjected to modularized treatment, so that the fault detection process in the later period is more convenient, the working efficiency is improved, and the risk of touching the electrified secondary lines is reduced for workers;
2. the invention provides an effective temperature and humidity control facility, which can prevent the problems that equipment condensation, corrosion of electric elements, mechanical parts and components can not normally work, influence the insulation effect of the electric elements, shorten the service life of the electric elements, reduce the utilization rate of the equipment and reduce the operation reliability of a box body when the humidity in a mechanism box is too high;
3. the invention improves the existing mechanism opening and closing device, and utilizes two groups of limit switches and in-place switches to control signals, so that the problem that an auxiliary switch in an electric operating mechanism of the isolating switch switches in advance to send an opening and closing in-place signal is solved, and the situation that an operation and maintenance person misjudges the opening and closing position of the isolating switch is effectively avoided.
Drawings
FIG. 1 is a schematic view of the structure of the device of the present embodiment;
FIG. 2 is a schematic diagram showing the arrangement of the devices inside the case in the present embodiment;
FIG. 3 is a schematic diagram of the modular auxiliary switch assembly of the present embodiment;
fig. 4 is a schematic view of the external structure of the control unit in the present embodiment;
FIG. 5 is a schematic diagram of a modular loop control in this embodiment;
FIG. 6 is a schematic diagram of an interactive panel in this embodiment;
fig. 7 is a schematic diagram of an end face structure of the male plug board in the present embodiment;
fig. 8 is a schematic diagram illustrating the installation of the male plug board, the female plug board, and the third plug on the box in the present embodiment;
reference numerals illustrate: 1. the box, 2, the motor, 3, transmission, 4, action unit, 5, auxiliary switch subassembly, 5A, auxiliary switch body, 5B, the fixing base, 5C, flange, 5D, auxiliary switch secondary line, 5E, first plug, 6, the control unit, 6A, interactive panel, 6B, main control box, 6C, the third plug, 6D, the connecting block, 6E, the bolt assembly, 7, the divide-shut brake subassembly, 7A, the divide-shut brake limit switch, 7B, divide-shut switch in place, 7C, the switch in place, 7D, the switch in place limit switch, 8, the control by temperature change subassembly, 8A, the cotton layer of heat preservation, 8B, temperature and humidity transducer, 8C, the heater, 8D, the dehumidifier, 9, the fourth plug, 10, the second plug, 11, public plug board, 12, female board.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples:
examples:
referring to fig. 1, the present embodiment provides an isolation switch operating mechanism of a control loop modular design; the isolating switch operating mechanism comprises a control loop modularization design, and comprises a box body 1 with a cover plate; a motor 2 is arranged in the box body 1, and the output end of the motor 2 is respectively connected with the input ends of an action unit 4 and an auxiliary switch assembly 5 through a transmission device 3; the motor 2 is connected with the control unit 6 through a wire and is controlled by the control unit 6; the control unit 6 is respectively and electrically connected with the auxiliary switch assembly 5, the opening and closing assembly 7 and the temperature control assembly 8;
the auxiliary switch assembly 5 includes an auxiliary switch body 5A; the auxiliary switch body 5A is provided with a fixed seat 5B and a connecting flange 5C which are used for being detachably assembled by matching with the box body 1; an auxiliary switch secondary line 5D is also arranged on the auxiliary switch body 5A; the other end of the auxiliary switch secondary line 5D is arranged on the first plug 5E; the box body 1 is also provided with a second plug head 10 connected with a secondary wire; the first plug 5E is detachably and electrically connected with the second plug 10; the specific structure of the auxiliary switch assembly 5 can be referred to fig. 3
The opening and closing assembly 7 comprises an opening and closing in-place switch 7B and an opening and closing in-place switch 7C which are controlled by the action of the action unit 4;
the control unit 6 comprises an interactive panel 6A embedded on the box body; a main control box 6B is arranged at the back of the interactive panel 6A; a third plug head 6C is also arranged on the main control box 4B; the opening and closing assembly 7, the motor 2 and the temperature control executing element 8 are respectively connected with a fourth plug head 9 arranged in the box body 1 through secondary wires, and a detachable electric connection structure is arranged between the third plug head 6C and the fourth plug head 9, in the embodiment, the main control box 6B is of a structure in which a CPU integrated board is embedded for circuit control, and a remote communication module is correspondingly integrated in the main control box 6B.
A mounting hole is formed in the cover plate of the box body 1; the main control box 6B passes through the mounting hole to be arranged; a connecting block 6D is also arranged on the main control box 6B, and the main control box 6B is detachably arranged on the box body 1 through the connecting block 6D and a bolt component 6E; the third plug 6C is disposed at the end portion of the main control box 4B which is left inside the box body 1, and the specific structure of the control unit 6 can be referred to fig. 4; the inner side wall of the cover plate of the box body 1 is also provided with a secondary schematic diagram which is convenient for field defect treatment; the two-dimensional code diagram is further arranged on the outer side wall of the cover plate of the box body 1, the two-dimensional code diagram is arranged to facilitate equipment account management and drawing data storage, and related data such as equipment account information, related parameters, installation and use specifications and the like can be queried by scanning the two-dimensional code by the mobile phone on site.
The opening and closing assembly 7 further comprises an opening limit switch 7A and a closing limit switch 7D; and the switch 7B and the switch 7C are both proximity micro switches.
The motor 2 is of a stepping motor structure controlled by a main control box 6B, the action unit 4 is of a rotating rod structure, and a brake-separating limit switch 7A, a brake-separating in-place switch 7B, a brake-closing in-place switch 7C and a brake-closing limit switch 7D are respectively and symmetrically arranged on two sides of the action unit 4.
The temperature control assembly 8 comprises a heat preservation cotton layer 8A laid on the inner wall of the box body 1; the temperature and humidity sensor 8B, the heater 8C and the dehumidifier 8D are electrically connected with the main control box 6B through wires, respectively.
The second plug 10 and the fourth plug 9 are arranged on the same male plug board 11, the male plug board 11 is fixed in the box body 1, and the female plug board 12 is detachably and electrically connected with the male plug board 11; the busbar 12 is connected with a secondary cable outside the box body 1.
Dividing the board surface into three functional areas on the male plug board 11 through identification division; the male plug strip 11 and the female plug strip 12 are detachably mounted through the cooperation of bolts and threaded holes. The divided functional areas of the male plug board 11 can refer to fig. 7, wherein, the areas with the reference numbers 1-12 are areas of motor, control, heating and remote control power supply, the corresponding 1-4 are respectively of alternating current A, B, C, N phases, 5-6 are respectively of heating power supply L, N phases, 7 is remote control switch-on, 8-bit remote control switch-off, and 9-12 are standby positions; the areas with the reference numbers 13-18 are disconnecting switch opening and closing signal areas, 13-14 are closing signal positions, 15-16 are opening and closing signal positions, and 17-18 are standby positions; 19-42 are auxiliary switch dedicated areas for accessing a latching circuit or other functions. The mounting structure of the first plug 5E, the second plug 6C, the male plug board 11, and the female plug board 12 can be referred to fig. 8.
The interaction panel 6A is an LED screen; the interactive panel 6A is provided with a manual and automatic operation knob, a manual opening button, a manual closing button, an emergency stop button and a reset button in an integrated manner, and the interactive panel 6A is also provided with an operation indicator lamp, an alarm indicator lamp, a locked-rotor indicator lamp, a position-closing indicator lamp, a position-dividing indicator lamp and a temperature control indicator lamp. A schematic cross-sectional view of the interactive panel 6A may refer to fig. 6, and in this embodiment, the related description of the indicator lamp below the interactive panel 6A is as follows:
1) "run": when the controller operates normally, an operation indicator lamp (green light) is turned on;
2) "alarm": when the control part alarms due to faults, an alarm indicator lamp (red lamp) is on to prompt operation and maintenance personnel to check;
3) "locked rotor": when the motor is blocked, a blocking indicator lamp (red lamp) is on to prompt operation and maintenance personnel to check; "close position":
4) After the mechanism reaches a closing position, a closing indicator lamp (red lamp) is lighted;
5) "split": after the mechanism reaches the opening position, an opening indicator lamp (green light) is lighted.
The indication lamp description and manual/automatic shift switching description of the temperature control area above the interactive panel 6A are as follows:
1) "RUN": normal operation indication (green light); "FAN": fan operation indication (red light); "HEAT": heater operation indication (red light); "ALARM: "run on fault indication (red light); and (3) injection: when the temperature and humidity are out of limit, the sensor is abnormal, the EEPROM makes mistakes and changes suddenly when the temperature and humidity are over, the ALARM lamp is turned on;
2) Manual/automatic operation: pulling the switch to a manual position, and forcedly closing the 2 groups of relay contacts; if the switch is shifted to the automatic position, the controller controls the on and off of the heater and the fan contacts according to an automatic control mode;
the invention also discloses a using method of the disconnecting switch operating mechanism with the modularized design of the control loop, which comprises the following steps:
s1, assembling an operation box and connecting corresponding circuit cables;
when the operation box is assembled, the auxiliary switch body 5A is installed in the box body 1 by utilizing the fixing seat 5B and the connecting flange 5C on the auxiliary switch assembly 5, the first plug 5E is aligned to the second plug 10 for installation, the main control box 6B is installed in the box body 1 by utilizing the connecting block 6D on the main control box 6B in combination with the bolt assembly 6E, and the third plug 6C is aligned to the fourth plug 9 for installation; the male plug board 11 and the female plug board 12 are connected and then electrified to connect the internal circuit of the operation box and reset all parts in the box body 1;
s2, the operation box runs automatically, the inside of the box body is adjusted through the temperature control assembly, and a corresponding indicator lamp is lightened;
after the internal circuit of the operation box is connected, the main control box 6A performs power control on the heater 8C and the dehumidifier 8D according to the electric signals transmitted by the temperature and humidity sensor 8B, dynamically adjusts the temperature and humidity environment in the box body 1, displays the real-time temperature and humidity in the box on the interactive panel, and lights up the operation indicator lamp and the corresponding temperature control indicator lamp; the specific temperature control logic is controlled as follows:
the temperature and humidity sensor 8B monitors the temperature and humidity of the internal environment of the box body 1 in real time, a temperature and humidity signal is transmitted to the main control box 6B, the temperature and humidity value of a temperature and humidity control functional area can be freely set on an interface of the interactive panel 6, the temperature and humidity can be displayed on an LED screen in the area in real time, when the temperature and humidity sensor 8B transmits to the main control box 6B to be lower than a set value, the heater 8C is started, the temperature in the mechanism box is lifted, and when the temperature monitored by the temperature and humidity sensor 8B reaches the set value, the heater 8C stops working; when the humidity of the main control box 6B is higher than a set value through the temperature and humidity sensor 8B, the dehumidifier 8D is started, the humidity in the mechanism box is reduced, and after the humidity monitored by the temperature and humidity sensor 8B reaches the set value, the dehumidifier 8D stops working, so that the temperature and humidity in the mechanism box are ensured to be proper, and the condensation is prevented from appearing.
S3, carrying out operation and maintenance inspection on the operation box, and controlling the internal elements of the box body 1 to execute corresponding operations by an inspection personnel through the main control box 6B according to the indication of the indication lamp on the operation box; when the auxiliary switch assembly 5 or the control unit 6 fails, an alarm indicator light on the interactive panel 6A is on to remind operation and maintenance personnel to check; the operation and maintenance personnel inputs a brake-off command to the main control box 6B, the main control box 6B outputs a control signal to the motor 2, the motor drives the action unit 4 to rotate towards the brake-off in-place switch 7B until the action unit 4 presses the brake-off limit switch 7B and the brake-off in-place signal switch 7A, the brake-off limit switch 7B stops the movement of the motor 2, and the brake-off in-place signal switch 7A sends a brake-off in-place signal to the main control box 6B; it should be noted that the number of the components,
1) When the box body 1 is at the switching-on position, only the switching-off operation is responded, and when the box body 1 moves to the switching-off position, the motor stops; when a closing command is operated, the mechanism does not act, and the device cannot respond;
2) When the box body 1 is at the opening position, only the closing operation is responded, and when the box body 1 moves to the closing position, the motor is stopped; the mechanism does not act when the opening command is operated, and the device cannot respond; thereby, a function of preventing the main control box 6B from erroneously controlling the motor 2 is realized.
S4, checking a unit which is specifically required to be replaced by operation and maintenance personnel, and if the unit is required to be replaced by the control unit 6, entering a step S5; if the auxiliary switch assembly 5 needs to be replaced, the step S6 is performed; if the whole operation box needs to be replaced, entering a step 7;
s5, replacing a control unit in the operation box;
when the control unit 6 is replaced, the third plug 6C on the original control unit 6 is pulled out from the fourth plug 9, the bolt assembly 6E on the connecting block 6D is loosened, and finally the whole control unit 6 is taken out from the box body 1; thereafter, the disassembly and assembly steps are reversed when a new control unit 6 is installed;
s6, replacing an auxiliary switch assembly in the operation box;
when the auxiliary switch assembly 5 is replaced, the first plug 5E on the original auxiliary switch assembly 5 is pulled out from the second plug 10, the fixed seat 5B and the connecting flange 5C are detached from the box body 1, and finally the whole auxiliary switch assembly 5 is taken out; thereafter, the disassembly and assembly steps are reversed when a new auxiliary switch assembly 6 is installed;
s7, replacing the operation box; when the operation box is replaced; the cable plug head connected with the outside inside of the box body (1) of the mechanism is disassembled, the anchor ear between the transmission device (3) and the action unit (4) in the box body (1) is disassembled, and the mechanism box can be quickly disassembled by disassembling the back plate fixing bolt of the box body (1);
s8, performing closing operation; the operation and maintenance personnel inputs a closing instruction to the main control box 6B, the main control box 6B outputs a control signal to the motor 2, the motor drives the action unit 4 to rotate towards the closing in-place switch 7C until the action unit 4 presses the closing limit switch 7D and the closing in-place signal switch 7C, the closing limit switch 7D stops the movement of the motor 2, and the closing in-place signal switch 7C sends a closing in-place signal to the main control box 6B;
s9, after the corresponding units are replaced, switching on an internal circuit of the operation box and resetting all parts in the box body 1 to finish one-time inspection maintenance work; thereafter, steps S2 to S8 are looped.
In the step S3 and the step S8, when the motor 2 fails in the process of executing the opening operation or the closing operation, the alarm indicator lamp and the locked-rotor indicator lamp on the interactive panel 6A are on; prompting operation and maintenance personnel to check the motor 2; extinguishing the locked-rotor indicator lamp after the motor 2 fails to discharge; in the process of executing the opening operation or the closing operation in the step S3 and the step S8, the main control box 6B carries out corresponding position signal detection on the opening in-place switch 7B and the closing in-place switch 7C, if the position signal is not detected in 10S, the opening and closing operation is stopped, and an alarm indicator lamp is lightened; the detection and judgment of the position signal are realized by the following means:
1) When the closing limit switch contact is detected to be closed, the opening limit switch contact is opened to indicate that the mechanism is at the opening position;
2) If the switching-off limit switch contact is detected to be closed, the switching-on limit switch contact is opened to indicate that the mechanism is at a switching-on position;
3) If the switching-on limit switch contact is detected, the switching-off limit switch contact is all disconnected, and then an alarm is given and a fault relay is opened;
4) If the switching-on limit switch contact is detected, the switching-off limit switch contact is closed, and the switching-on limit switch contact is considered to be at the middle position at the moment, and no alarm is given.
5) If the motor is stopped due to the abnormality of the mechanism, the fault relay is simultaneously opened in an alarm mode, and after the controller resets again, if the switching-on limit switch contacts are detected to be closed, the switching-off limit switch contacts are all closed, and then the main control box 6B only responds to switching-off operation.
The manual/automatic control function in the box body is realized through the interactive panel 6A, and the specific process is as follows:
1) When the remote/local handle is switched to the 'remote' position, only remote opening and closing operations are allowed to be carried out on the background monitor;
2) When the remote/on-site handle is switched to the "on-site" position, only the on-site opening and closing operation is allowed to be performed on the interactive panel 6A;
3) If the mechanism is in the process of operation, the motor is immediately stopped when the mechanism is switched from the local place to the remote place or from the remote place to the local place;
4) In the operation process of the mechanism, if an emergency situation occurs, an emergency stop button can be immediately pressed, the motor immediately stops running, meanwhile, a warning lamp is turned on, a fault relay is turned on, if the reset button on the panel needs to be pressed down for re-operation, or the remote reset is carried out through a monitoring machine, at the moment, if the motor is in an opening and closing middle position, the motor can only respond to opening and closing operation, and the motor stops rotating when reaching an opening and closing position;
5) Switching on/off operation: the panel opening and closing operation is only effective for local operation, and the remote operation is ineffective.
In the present embodiment, the main control box 6B is also capable of performing phase failure protection of the motor 2; when the motor 2 is in the rotating process, if one phase in the three-phase power is disconnected, the motor stops after rotating for 3 seconds, and meanwhile, the alarm indicator lights are turned on and the fault relay is turned on.
Claims (8)
1. A control loop modularized disconnecting switch operating mechanism comprises a box body (1) with a cover plate; a motor (2) is arranged in the box body (1), and the output end of the motor (2) is respectively connected with the input ends of the action unit (4) and the auxiliary switch component (5) through a transmission device (3); the characteristics are that: the motor (2) is connected with the control unit (6) through a wire and is controlled by the control unit (6); the control unit (6) is respectively and electrically connected with the auxiliary switch assembly (5), the opening and closing assembly (7) and the temperature control assembly (8);
the auxiliary switch assembly (5) comprises an auxiliary switch body (5A); a fixed seat (5B) and a connecting flange (5C) which are used for being detachably mounted by being matched with the box body (1) are arranged on the auxiliary switch body (5A); an auxiliary switch secondary wire (5D) is also arranged on the auxiliary switch body (5A); the other end of the auxiliary switch secondary line (5D) is arranged on the first plug head (5E); a second plug head (10) connected with the secondary wire is also arranged in the box body (1); the first plug head (5E) is detachably and electrically connected with the second plug head (10);
the opening and closing assembly (7) comprises an opening and closing in-place switch (7B) and an closing and in-place switch (7C) which are controlled by the action of the action unit (4);
the control unit (6) comprises an interactive panel (6A) embedded on the box body; a main control box (6B) is arranged at the back of the interactive panel (6A); a third plug head (6C) is also arranged on the main control box (6B); the opening and closing assembly (7), the motor (2) and the temperature control assembly (8) are respectively connected with a fourth plug (9) arranged in the box body (1) through secondary wires, and a detachable electric connection structure is arranged between the third plug (6C) and the fourth plug (9); the using method of the isolating switch operating mechanism comprises the following steps:
s1, assembling an operation box and connecting corresponding circuit cables;
when the operation box is assembled, the auxiliary switch body (5A) is installed in the box body (1) by utilizing the fixing seat (5B) and the connecting flange (5C) on the auxiliary switch assembly (5), the first plug (5E) is aligned to the second plug (10) for installation, the main control box (6B) is installed in the box body (1) by utilizing the connecting block (6D) on the main control box (6B) to be matched with the bolt assembly (6E), and the third plug (6C) is aligned to the fourth plug (9) for installation; the male plug board (11) and the female plug board (12) are connected and then electrified to connect the internal circuit of the operation box, and each part in the box body (1) is reset;
s2, the operation box runs automatically, the inside of the box body is adjusted through the temperature control assembly, and a corresponding indicator lamp is lightened;
after an internal circuit of the operation box is connected, a main control box (6B) performs power control on a heater (8C) and a dehumidifier (8D) according to an electric signal transmitted by a temperature and humidity sensor (8B), the temperature and humidity environment in the box body (1) is dynamically adjusted, and meanwhile, the real-time temperature and humidity in the box are displayed on an interactive panel, and an operation indicator lamp and a corresponding temperature control indicator lamp are lightened;
s3, carrying out operation and maintenance inspection on the operation box, and controlling the internal elements of the box body (1) to execute corresponding operations by an inspection staff through the main control box (6B) according to the indication of the indication lamp on the operation box; when the auxiliary switch assembly (5) or the control unit (6) fails, an alarm indicator light on the interactive panel (6A) is on so as to remind operation and maintenance personnel to check; the operation and maintenance personnel inputs a brake-separating instruction to the main control box (6B), the main control box (6B) outputs a control signal to the motor (2), the motor drives the action unit (4) to rotate towards the brake-separating in-place switch (7B) until the action unit (4) presses the brake-separating limit switch (7A) and the brake-separating in-place switch (7B), the brake-separating limit switch (7A) stops the movement of the motor (2), and the brake-separating in-place switch (7B) sends a brake-separating in-place signal to the main control box (6B); in the process of executing opening operation or closing operation; when the motor (2) fails, an alarm indicator lamp and a locked-rotor indicator lamp on the interactive panel (6A) are on; prompting operation and maintenance personnel to check the motor (2); extinguishing the locked-rotor indicator lamp after the motor (2) is discharged from faults; in the process of executing the opening operation or the closing operation in the step S3 and the step S8, the main control box (6B) carries out corresponding position signal detection on the opening in-place switch (7B) and the closing in-place switch (7C), if the position signal is not detected in 10S, the opening and closing operation is stopped, and an alarm indicator lamp is lightened;
s4, checking a unit which is specifically required to be replaced by operation and maintenance personnel, and if the control unit (6) is required to be replaced, entering a step S5; if the auxiliary switch assembly (5) needs to be replaced, the step S6 is carried out; if the whole operation box needs to be replaced, entering a step 7;
s5, replacing a control unit in the operation box;
when the control unit (6) is replaced, firstly, the third plug (6C) on the original control unit (6) is pulled out from the fourth plug (9), the bolt assembly (6E) on the connecting block (6D) is loosened, and finally, the whole control unit (6) is taken out from the box body (1); thereafter, the disassembly and assembly steps are reversed when a new control unit (6) is installed;
s6, replacing an auxiliary switch assembly in the operation box;
when the auxiliary switch assembly (5) is replaced, the first plug (5E) on the original auxiliary switch assembly (5) is pulled out from the second plug (10), the fixing seat (5B) and the connecting flange (5C) are detached from the box body (1), and finally the whole auxiliary switch assembly (5) is taken out; thereafter, the disassembly and assembly steps are reversed when a new auxiliary switch assembly (5) is installed;
s7, replacing the operation box; when the operation box is replaced; the cable plug head connected with the outside inside of the box body (1) of the mechanism is disassembled, the anchor ear between the transmission device (3) and the action unit (4) in the box body (1) is disassembled, and the mechanism box can be quickly disassembled by disassembling the back plate fixing bolt of the box body (1);
s8, performing closing operation; the operation and maintenance personnel inputs a closing instruction to the main control box (6B), the main control box (6B) outputs a control signal to the motor (2), the motor drives the action unit (4) to rotate towards the closing in-place switch (7C) until the action unit (4) presses the closing limit switch (7D) and the closing in-place switch (7C), the closing limit switch (7D) stops the movement of the motor (2), and the closing in-place switch (7C) sends a closing in-place signal to the main control box (6B); in the process of executing opening operation or closing operation; when the motor (2) fails, an alarm indicator lamp and a locked-rotor indicator lamp on the interactive panel (6A) are on; prompting operation and maintenance personnel to check the motor (2); extinguishing the locked-rotor indicator lamp after the motor (2) is discharged from faults; in the process of executing the opening operation or the closing operation in the step S3 and the step S8, the main control box (6B) carries out corresponding position signal detection on the opening in-place switch (7B) and the closing in-place switch (7C), if the position signal is not detected in 10S, the opening and closing operation is stopped, and an alarm indicator lamp is lightened;
s9, after the corresponding units are replaced, switching on an internal circuit of the operation box and resetting all parts in the box body (1) to finish one-time inspection maintenance work; thereafter, steps S2 to S8 are looped.
2. A control loop modularly designed disconnector operating mechanism according to claim 1, characterized in that: a mounting hole is formed in the cover plate of the box body (1); the main control box (6B) passes through the mounting hole to be arranged; a connecting block (6D) is further arranged on the main control box (6B), and the main control box (6B) and the bolt component (6E) are detachably arranged on the box body (1) through the connecting block (6D); the third plug head (6C) is arranged at the end part of the main control box (6B) which is left at the inner side of the box body (1); the inner side wall of the cover plate of the box body (1) is also provided with a secondary schematic diagram, and the outer side wall of the cover plate of the box body (1) is also provided with a two-dimensional code diagram.
3. A control loop modularly designed disconnector operating mechanism according to claim 1, characterized in that: the opening and closing assembly (7) further comprises an opening limit switch (7A) and a closing limit switch (7D); and the opening in-place switch (7B) and the closing in-place switch (7C) are all proximity microswitches.
4. A control loop modularly designed disconnector operating mechanism according to claim 1, characterized in that: the motor (2) is of a stepping motor structure controlled by the main control box (6B), the action unit (4) is of a rotating rod structure, and the opening limit switch (7A), the opening in-place switch (7B), the closing in-place switch (7C) and the closing limit switch (7D) are symmetrically arranged on two sides of the action unit (4) respectively.
5. A control loop modularly designed disconnector operating mechanism according to claim 1, characterized in that: the temperature control assembly (8) comprises a heat insulation cotton layer (8A) laid on the inner wall of the box body (1); the temperature and humidity sensor (8B), the heater (8C) and the dehumidifier (8D) are respectively and electrically connected with the main control box (6B) through wires.
6. A control loop modularly designed disconnector operating mechanism according to claim 1, characterized in that: the second plug head (10) and the fourth plug head (9) are arranged on the same male plug board (11), the male plug board (11) is fixed inside the box body (1), and the female plug board (12) is detachably and electrically connected with the male plug board (11); the female board (12) is connected with a secondary cable outside the box body (1).
7. The control loop modular design isolation switch operating mechanism of claim 6, wherein: dividing the board surface into three functional areas on the male plug board (11) through identification division; the male plug board (11) and the female plug board (12) are detachably mounted through the cooperation of bolts and threaded holes.
8. A control loop modularly designed disconnector operating mechanism according to claim 1, characterized in that: the interactive panel (6A) is an LED screen; the manual automatic operation knob, the manual opening button, the manual closing button, the emergency stop button and the reset button are integrated on the interactive panel (6A), and the operation indicator lamp, the alarm indicator lamp, the locked rotor indicator lamp, the combined indicator lamp, the separated indicator lamp and the temperature control indicator lamp are further arranged on the interactive panel (6A).
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| CN201294189Y (en) * | 2008-09-23 | 2009-08-19 | 西安恒阳电器设备有限公司 | Mechanism for operating motor of electric power switch equipment |
| JP2011060178A (en) * | 2009-09-14 | 2011-03-24 | Ricoh Co Ltd | Electronic equipment, image forming apparatus, power supply controller, and power supply control method |
| KR101606073B1 (en) * | 2014-04-30 | 2016-04-01 | 엘에스산전 주식회사 | Gas Insulated Swichgear |
| CN205248131U (en) * | 2015-09-29 | 2016-05-18 | 铁道第三勘察设计院集团有限公司 | Railway contact net is electronic mechanism of improved generation for isolator |
| US10283302B2 (en) * | 2016-08-31 | 2019-05-07 | Miller-Eads Co. Inc. | Remote controlled circuit breaker panel system |
| CN107490991A (en) * | 2017-09-13 | 2017-12-19 | 广西电网有限责任公司电力科学研究院 | A kind of isolator operating mechanism intelligence control system |
| CN109188263B (en) * | 2018-09-18 | 2024-03-26 | 湖南长高高压开关有限公司 | High-voltage isolating switch AC/DC voltage regulation power supply test operation secondary circuit system |
| CN110335776A (en) * | 2019-07-18 | 2019-10-15 | 湖南长高高压开关集团股份公司 | A kind of modularization isolator operating mechanism case |
| CN110379652A (en) * | 2019-07-18 | 2019-10-25 | 湖南长高高压开关集团股份公司 | A kind of integrated intelligent isolating switch mechanism case |
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