CN112736749B - KYN high tension switchgear intelligence control system - Google Patents
KYN high tension switchgear intelligence control system Download PDFInfo
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- CN112736749B CN112736749B CN202110085265.6A CN202110085265A CN112736749B CN 112736749 B CN112736749 B CN 112736749B CN 202110085265 A CN202110085265 A CN 202110085265A CN 112736749 B CN112736749 B CN 112736749B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides an intelligent control system of a KYN high-voltage switch cabinet, which is characterized by comprising the following components: the intelligent controller is respectively connected with a circuit breaker energy storage motor, a chassis handcart driving mechanism, a grounding knife switch driving mechanism and a circuit breaker opening and closing driving mechanism, and a grounding knife switch closing limit switch, a grounding knife switch opening limit switch, a chassis handcart rolling-in limit switch, a chassis handcart withdrawing limit switch, a circuit breaker energy storage limit switch, a circuit breaker closing limit switch and a circuit breaker opening limit switch which are installed in a KYN high-voltage switch cabinet. The intelligent control of operations such as shaking in and out of a KYN high-voltage switch cabinet chassis handcart, switching on and off of a grounding knife switch, energy storage and switching on and off of a circuit breaker and the like is realized, the structure is simple, the maintenance is convenient, the adaptability is strong, the automation degree is high, and the working reliability is high.
Description
Technical Field
The invention belongs to the technical field of switch cabinets, and particularly relates to an intelligent control system of a KYN high-voltage switch cabinet.
Background
The existing KYN high-voltage switch cabinet is not high in intelligent and automatic degree, when chassis handcart shaking-in and exiting, grounding switch on-off, breaker on-off and other operations need to be carried out, the manual operation is needed to be carried out, the in-place degree of the operation needs to be judged through experience, and the existing KYN high-voltage switch cabinet is complex and not reliable enough.
In the prior art, for example, chinese patent CN201320584298, a handcart type circuit breaker equipped with an electric chassis device, CN201822019671, a vacuum circuit breaker with a mechanical interlocking device, etc., although some improvements are proposed, it is difficult to systematically solve the above problems, and there are still great defects in convenience and ease of use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the intelligent control system of the KYN high-voltage switch cabinet, the intelligent operation system of the KYN high-voltage switch cabinet is constructed through an intelligent controller (such as a PLC (programmable logic controller) and the like), and the intelligent control system is simple in structure, convenient to maintain, strong in adaptability, high in automation degree and high in working reliability.
The technical scheme is as follows:
the utility model provides a KYN high tension switchgear intelligence control system which characterized in that includes: the intelligent controller is respectively connected with a circuit breaker energy storage motor, a chassis handcart driving mechanism, a grounding knife switch driving mechanism and a circuit breaker opening and closing driving mechanism, and a grounding knife switch closing limit switch, a grounding knife switch opening limit switch, a chassis handcart swing-in limit switch, a chassis handcart exit limit switch, a circuit breaker energy storage mechanism limit switch, a circuit breaker closing limit switch and a circuit breaker opening limit switch which are arranged in a KYN high-voltage switch cabinet;
the breaker energy storage motor is connected with the breaker; the chassis handcart driving mechanism is connected with a worm gear transmission mechanism of the chassis handcart; the grounding knife switch driving mechanism is connected with the grounding knife switch transmission mechanism; and the opening coil and the closing coil of the circuit breaker opening and closing driving mechanism are respectively connected with the circuit breaker.
Preferably, the grounding knife switch driving mechanism, the chassis handcart driving mechanism and the breaker energy storage mechanism are driven by motors.
Preferably, the intelligent control cabinet also comprises a front door lock limit switch and a rear door lock limit switch which are arranged on the cabinet door and connected with the intelligent controller.
Preferably, the earthing knife switch closing limit switch, the earthing knife switch opening limit switch, the chassis handcart shaking-in limit switch, the chassis handcart withdrawing limit switch, the circuit breaker energy storage mechanism limit switch, the circuit breaker closing limit switch, the circuit breaker opening limit switch, the front door lock limit switch and the rear door lock limit switch are all travel limit switches at least provided with one opening and one closing contact.
Preferably, the intelligent controller adopts an HIC-220/A central controller.
Preferably, the intelligent controller is connected with the key module.
Preferably, each motor and separating brake coil and closing coils are connected respectively through a plurality of 24V auxiliary relays to the intelligent control ware, and wherein, auxiliary relay KA0, KA1 control earthing knife switch motor are just reversing, and auxiliary relay KA2, KA3 are used for controlling chassis handcart motor just reversing, and auxiliary relay KA4 is used for controlling opening of circuit breaker energy storage motor and stops, and auxiliary relay KA6, KA7 are used for controlling the break-make of circuit breaker separating brake coil and closing coils respectively.
Preferably, normally open contacts of the grounding knife switch closing limit switch and the grounding knife switch opening limit switch are connected with an input point of the intelligent controller, and the normally closed contacts are respectively connected with the intermediate relay KA0 and the intermediate relay KA1 in series;
normally open contacts of the chassis handcart rolling-in limit switch and the chassis handcart withdrawing limit switch are connected with an input point of the intelligent controller, and the normally closed contacts are respectively connected with the intermediate relay KA2 and the intermediate relay KA3 in series;
a normally open contact of the circuit breaker energy storage limit switch is connected with an input point of the intelligent controller, and the normally closed contact is connected with the intermediate relay KA4 in series;
normally open contacts of the breaker closing limit switch and the breaker opening limit switch are connected with an input point of an intelligent controller, and the normally closed contacts are connected in series with the intermediate relay KA6 and the intermediate relay KA7 respectively.
Preferably, the intelligent controller collects the operating environment temperature of the KYN high-voltage switch cabinet, the chassis handcart motor current, the grounding switch motor current and the alternating-current three-phase voltage for monitoring.
Preferably, the input points AD0, AD1, AD2 and AD3 of the intelligent controller are analog quantity acquisition points of a temperature isolator, a chassis handcart motor current transmitter, a grounding knife switch motor current transmitter and an alternating current three-phase voltage transmitter respectively, and are used for monitoring whether the environmental temperature, the motor running state and the three phases are balanced or not.
The invention and the preferred scheme realize the intelligent control of operations such as shaking in and out of a KYN high-voltage switch cabinet chassis handcart, switching on and off of a grounding knife switch, energy storage and switching on and off of a circuit breaker and the like, and have the advantages of simple structure, convenient maintenance, strong adaptability, high automation degree and high working reliability.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
fig. 1 is a schematic view of an overall structure of a KYN high-voltage switch cabinet according to an embodiment of the invention;
FIG. 2 is a schematic diagram of the system driver power connection according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the wiring of the intelligent controller system according to the embodiment of the invention;
FIG. 4 is a schematic diagram of the system driving motor wiring according to the embodiment of the present invention;
in the figure: 1-power switch button; 2-an intelligent controller; 3-an energy storage transfer switch; 4-remote/local control switch; 5-main bus and branch bus; 6-main bus wall bushing; 7-contact box; 8-a current transformer; 9-a grounding switch drive mechanism; 10-limit switch of grounding switch; 11-a feeder cable; 12-back door limit switch; 13-a lightning arrester; 14-secondary cable channel; 15-earthing switch transmission mechanism; 16-chassis hand truck drive mechanism; 17-chassis handcart limit switch; 18-a switching-off coil; 19-a switching-on coil; 20-an energy storage motor; 21-a circuit breaker; 22-front door limit switch;
a: a bus chamber; b: a circuit breaker chamber; c: a cable chamber; d: an instrument room.
Detailed Description
In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:
as shown in fig. 1 to fig. 4, the device system scheme provided by this embodiment is based on an improvement of an existing KYN high-voltage switch cabinet, the interior of the KYN high-voltage switch cabinet mainly includes a bus chamber a, a breaker chamber B, a cable chamber C, an instrument chamber D, and the like, wherein the main bus and branch bus 5, the main bus wall bushing 6, the contact box 7, the current transformer 8, the feeder cable 11, the lightning arrester 13, the secondary cable channel 14, the breaker 21, and the like are existing devices.
The improvement part that this embodiment provided mainly includes: the intelligent controller 2 with the color touch screen is arranged on the front side of the KYN high-voltage switch cabinet, the circuit breaker energy storage motor 20, the chassis handcart driving mechanism 16, the grounding knife switch driving mechanism 9 and the circuit breaker opening and closing driving mechanism are respectively connected with the intelligent controller 2, and the grounding knife switch limit switch 10 (comprising a grounding knife switch closing limit switch and a grounding knife switch opening limit switch), the chassis handcart limit switch 17 (comprising a chassis handcart swing-in limit switch and a chassis handcart exit limit switch) and a circuit breaker in-place dividing and closing sensor (comprising a circuit breaker closing limit switch and a circuit breaker opening limit switch), the circuit breaker energy storage limit switch, a rear threshold limit switch 12 and a front door limit switch 22 are arranged in the KYN high-voltage switch cabinet.
The ground switch driving mechanism, the chassis handcart driving mechanism and the circuit breaker energy storage mechanism are all driven by motors. Each limit switch adopts a travel limit switch at least provided with an open contact and a close contact.
The front door and the rear door closing limit switches, the grounding knife switch and closing limit switches, the chassis handcart shaking in and out limit switches and the circuit breaker and closing in-place sensors which are arranged in the cabinet input the position state information data into the intelligent controller and output the position state information data to the intermediate relay through collection and processing to control the operation of the energy storage motor, the grounding knife switch motor, the chassis handcart motor and the circuit breaker opening and closing electromagnetic coil. The input terminal of the motor and the coil is connected with an AC-to-DC 220V power supply, and the AC-to-DC 220V-to-24V power supply is connected with the input terminal of the intelligent controller.
As shown in fig. 1, wherein the circuit breaker energy storage motor is connected with the circuit breaker energy storage mechanism; the chassis handcart driving mechanism is connected with a worm gear and worm transmission mechanism of the chassis handcart; the grounding knife switch driving mechanism is connected with the grounding knife switch transmission mechanism 15; the opening coil 18 and the closing coil 19 of the circuit breaker opening and closing driving mechanism are respectively connected with the circuit breaker.
In the embodiment, the intelligent controller adopts an HIC-220/A intelligent controller which is provided with a touch screen for convenient operation and is externally connected with an alternating current 220V-to-direct current 24V power supply.
As shown in fig. 1, in this embodiment, the intelligent controller is further connected to a key module, and the key module includes: the power switch button 1, the energy storage change-over switch 3 and the remote/local control switch 4 realize one-key control of opening and closing of the high-voltage switch cabinet; the configuration buttons in the touch screen are used for respectively controlling the starting and stopping of the circuit breaker energy storage motor, the chassis handcart driving mechanism, the grounding knife switch driving mechanism and the circuit breaker opening and closing driving mechanism; the system also comprises an emergency stop button, an operation state indication, a current voltage temperature indication and the like.
In this embodiment, the worm gear and worm transmission mechanism of the chassis handcart may be replaced by the one described in CN201320584298, a handcart type circuit breaker configured with an electric chassis handcart device, and the earthing knife switch transmission mechanism 15 may specifically adopt the one described in CN201420566130, earthing knife switch transmission mechanism.
FIG. 2 is a system driving power supply wiring diagram: the chassis handcart, the circuit breaker energy storage, the driving motor of the earthing knife switch and the power supply of the circuit breaker opening and closing coil are 220V direct current power supplies, the system intelligent controller is connected with the 24V direct current power supplies, the two direct current power supplies are connected with the alternating current 220V power supplies in the high-voltage cabinet, an emergency stop button SQ0 is connected in series at a fire wire end, and the emergency stop button is pressed down to cut off the system power supply in case of motor stalling or other abnormal conditions.
The intelligent controller system wiring diagram is shown in FIG. 3: the intelligent controller L, N is connected with a 24V direct-current power supply through a contact, a grounding knife switch closing limit switch SQ0, a grounding knife switch opening limit switch SQ1, a chassis handcart swing-in limit switch SQ2, a pull-out limit switch SQ3, a breaker energy storage limit switch SQ4, a breaker energy storage switch S1, a breaker closing limit switch SQ6, a breaker opening limit switch SQ7, a high-voltage cabinet front door lock limit switch SQ8 and a rear door lock limit switch SQ9, a controller starting power button SD, a local/remote control breaker opening and closing switch, input points X0, X1, X2, X3, X4, X5, X6, X7, X10, X11, X12 and X13-15 of the intelligent controller are respectively connected, position state information data of the intelligent controller is input into the intelligent controller, the output points Y0, Y1 are processed to an intermediate relay KA0 and KA1 to control a grounding knife switch motor, the output points Y2, Y3 to an intermediate relay 2, the chassis handcart 4 is controlled by the intermediate relay KA4, the intermediate relay KA4 is processed to control a handcart motor, and an intermediate relay is output point KA6 to control solenoid coil. Meanwhile, the input points AD0, AD1, AD2 and AD3 of the controller are analog quantity acquisition points of a temperature isolator, a chassis handcart motor current transmitter, a grounding knife switch motor current transmitter and an alternating current three-phase voltage transmitter, and can monitor the environment temperature, the motor running state and whether three phases are balanced or not. The system can collect the operating environment temperature of a high-voltage switch cabinet KYN, the chassis handcart motor current, the grounding switch motor current and the alternating current three-phase voltage for monitoring.
The wiring diagram of the system driving motor is shown in FIG. 4: the intermediate relays KA0 and KA1 control the forward and reverse rotation of the grounding knife switch motor, the intermediate relays KA2 and KA3 control the forward and reverse rotation of the chassis handcart motor, the KA4 controls the energy storage motor, and the intermediate relays KA6 and KA7 control the opening and closing coils of the circuit breaker.
Normally open contacts of limit switches of the grounding knife switch, the chassis handcart and the energy storage driving mechanism are connected with an input point of the intelligent controller, and the normally closed contacts are connected with the intermediate control relay so as to cut off a motor power supply after the control mechanism is in place.
The switching-on and switching-off operation of a KYN circuit breaker of the high-voltage switch cabinet is controlled on the spot through a spot/remote change-over switch on the front surface of the high-voltage switch cabinet, and the switching-on and switching-off operation of the KYN circuit breaker of the high-voltage switch cabinet can be controlled remotely by selecting a remote switch, so that the functions of information exchange with relay protection and coordination and automatic control, information exchange with other automation devices, communication with a dispatching control center and a centralized control center and the like are realized.
The intelligent controller is used for inputting instructions through a touch screen configuration button, acquiring position state information of a front door closing limit switch, a rear door closing limit switch, a grounding knife switch and closing limit switch, a chassis handcart shaking-in and withdrawing limit switch, a circuit breaker opening and closing and energy storage in-place sensor, which are installed in the cabinet, inputting the position state information into the intelligent controller for processing, outputting and controlling a grounding knife switch motor and closing, a chassis handcart motor shaking-in and withdrawing, and a circuit breaker coil to operate in an opening and closing mode, and monitoring the operation state of the circuit breaker coil through a display screen indicator lamp.
In order to ensure the safety of the running system of the driving mechanism of the grounding knife switch motor and the closing, chassis handcart motor swinging in and out, breaker electromagnetic coil and the closing and energy storage motor, each mechanism is provided with a limit switch and also sets time delay in-place time, and once the driving mechanism is not in place in preset time under the conditions of motor stalling and other accidents, the power supply is automatically cut off, a tight stop button can be pressed down, and the system displays faults.
Based on the system apparatus provided above, the present embodiment provides the following specific control methods:
the circuit breaker energy storage motor is used for stretching a closing or opening spring when being started so as to enable the closing or opening spring to have corresponding potential energy;
the chassis handcart driving mechanism is used for driving a worm gear transmission mechanism of a chassis handcart to enable the chassis handcart to shake in and out, and when the position of the chassis handcart triggers a limit switch for shaking in and out of the chassis handcart, the intelligent controller controls the chassis handcart driving mechanism to stop working;
the grounding knife switch driving mechanism is used for driving the grounding knife switch transmission mechanism to control the opening and closing of the grounding knife switch, when the grounding knife switch and the closed limit switch are triggered, the grounding knife switch is indicated to be in place, and the grounding knife switch driving mechanism stops working;
the circuit breaker opening and closing driving mechanism enables the circuit breaker to be opened or closed by switching on the opening coil or the closing coil, and determines whether the opening or closing is in place or not by the opening and closing in-place sensor of the circuit breaker, and the opening and closing in-place sensor serves as a judgment basis for cutting off a power supply of the opening coil or the closing coil.
The handcart of the chassis of the circuit breaker is shaken into the operation: the circuit breaker 21 is in a brake-separating position, namely SQ7 input, the grounding knife switch 15 is in a breaking state, namely SQ1 input, a front door, a rear door closing state, namely SQ8 and SQ9 input, and a circuit breaker chassis handcart shaking-in configuration button on the touch screen is input, at the moment, a circuit breaker chassis handcart motor starts to rotate forwards, a driving mechanism speed reducer and a turbine worm transmission mechanism push the circuit breaker chassis handcart from a test position/a breaking position to a working position, namely a shaking-in limiting switch SQ2 normally-open contact is closed and input to an intelligent controller X2, meanwhile, a normally-closed contact is broken to cut off a motor control circuit, and the touch screen prompts that a system is in a fault state if the time delay 10S does not reach the shaking-in working position.
The circuit breaker chassis handcart quits operation: the circuit breaker 21 is in a brake separating position, namely SQ7 input, the grounding knife switch 15 is in a breaking state, namely SQ1 input, a front door, a rear door closing state, namely SQ8 and SQ9 input, and a circuit breaker chassis handcart on the touch screen is withdrawn from configuration button input, at the moment, a motor of the circuit breaker chassis handcart starts to rotate reversely, a driving mechanism speed reducer and a turbine worm transmission mechanism enable the circuit breaker chassis handcart to be withdrawn to a breaking position/test position, namely a normally open contact of a withdrawing limit switch SQ3 is closed and input to an intelligent controller X3, meanwhile, the normally closed contact of the circuit breaker chassis handcart is disconnected to cut off a motor control circuit, and the time delay 10S is not yet withdrawn to the breaking position/test position, so that the touch screen prompts that a system is in a fault state.
The opening operation of the grounding knife switch: the circuit breaker 21 is input at a switching-off position, namely SQ7, a limit switch SQ3 input, a front door, a rear door closing state, namely SQ8 and SQ9 input, a limit switch SQ3 input, a front door closing state and a rear door closing state, namely SQ8 and SQ9 input, and a grounding knife switch switching-off configuration button input on the touch screen, at the moment, a grounding knife switch motor starts to rotate forwards, a grounding knife switch 15 is in a breaking state, namely SQ1 normally open contact is closed and input into an intelligent controller X1, meanwhile, a normally closed contact of the grounding knife switch is opened to cut off a motor control circuit, and the time delay 10S is not in place, so that the touch screen prompts that a system is in a fault state.
Switching on the grounding knife switch: the circuit breaker 21 is in a switching-off position, namely SQ7 input, a limit switch SQ3 input, a front door, a rear door closing state, namely SQ8 and SQ9 input, and a grounding knife switch switching-on configuration button input on the touch screen, wherein the circuit breaker chassis handcart moves back to a switching-off position/test position, at the moment, a grounding knife switch motor starts to rotate reversely, the grounding knife switch 15 is in a switching-on grounding state, namely SQ0 normally open contact is closed and input to an intelligent controller X0, meanwhile, the normally closed contact is disconnected to cut off a motor control circuit, and if the time delay is 10S, the touch screen prompts that the system is in a fault state.
Switching-on operation of the circuit breaker: the input of a limiting switch SQ4 of the circuit breaker energy storage mechanism, the input of a limiting switch SQ2 of a chassis handcart of the circuit breaker, which is shaken in to a working position, the input of a disconnecting switch SQ1, which is a disconnecting position of a grounding knife switch, the input of a front door, the input of a rear door closing state SQ8 and SQ9, and the input of a circuit breaker closing configuration button on a touch screen, at the moment, a circuit breaker closing electromagnetic coil is electrified, and an operating mechanism is closed.
The circuit breaker is opened: the circuit breaker energy storage mechanism limit switch SQ4 input + the close state of the front door and the rear door, namely SQ8 and SQ9 input + the circuit breaker opening configuration button input on the touch screen, at the moment, the circuit breaker opening electromagnetic coil is electrified, and the control mechanism is opened.
The present invention is not limited to the above-mentioned preferred embodiments, and all other various types of KYN high-voltage switch cabinet intelligent control systems can be derived by anyone based on the teaching of the present invention.
Claims (1)
1. The utility model provides a KYN high tension switchgear intelligence control system which characterized in that includes: the intelligent controller is respectively connected with the circuit breaker energy storage motor, the chassis handcart driving mechanism, the grounding knife switch driving mechanism and the circuit breaker opening and closing driving mechanism, and a grounding knife switch closing limit switch, a grounding knife switch opening limit switch, a chassis handcart swing-in limit switch, a chassis handcart withdrawing limit switch, a circuit breaker energy storage limit switch, a circuit breaker closing limit switch and a circuit breaker opening limit switch which are arranged in the KYN high-voltage switch cabinet;
the breaker energy storage motor is connected with the breaker; the chassis handcart driving mechanism is connected with a worm gear transmission mechanism of the chassis handcart; the grounding knife switch driving mechanism is connected with the grounding knife switch transmission mechanism; the opening coil and the closing coil of the circuit breaker opening and closing driving mechanism are respectively connected with the circuit breaker;
the grounding knife switch driving mechanism and the chassis handcart driving mechanism are driven by motors;
the intelligent control cabinet also comprises a front door lock limit switch and a rear door lock limit switch which are arranged on the cabinet door and connected with the intelligent controller;
the grounding knife switch closing limit switch, the grounding knife switch opening limit switch, the chassis handcart rolling-in limit switch, the chassis handcart withdrawing limit switch, the breaker energy storage limit switch, the breaker closing limit switch and the breaker opening limit switch, and the front door lock limit switch and the rear door lock limit switch are all travel limit switches with at least one opening contact and one closing contact;
the intelligent controller adopts an HIC-220/A intelligent controller;
the intelligent controller is connected with the key module;
the intelligent controller is respectively connected with the motors, the opening coil and the closing coil through a plurality of intermediate relays, wherein the intermediate relays KA0 and KA1 control the positive and negative rotation of the grounding knife switch motor, the intermediate relays KA2 and KA3 are used for controlling the positive and negative rotation of the chassis handcart motor, the intermediate relay KA4 is used for controlling the starting and stopping of the energy storage motor of the circuit breaker, and the intermediate relays KA6 and KA7 are respectively used for controlling the on and off of the opening coil and the closing coil of the circuit breaker;
normally open contacts of the grounding knife switch closing limit switch and the grounding knife switch opening limit switch are connected with an input point of the intelligent controller, and the normally closed contacts are respectively connected with the intermediate relay KA0 and the intermediate relay KA1 in series;
normally open contacts of the chassis handcart rolling-in limit switch and the chassis handcart withdrawing limit switch are connected with an input point of the intelligent controller, and the normally closed contacts are respectively connected with the intermediate relay KA2 and the intermediate relay KA3 in series;
a normally open contact of the circuit breaker energy storage limit switch is connected with an input point of the intelligent controller, and the normally closed contact is connected with the intermediate relay KA4 in series;
normally open contacts of the breaker closing limit switch and the breaker opening limit switch are connected with an input point of the intelligent controller, and the normally closed contacts are respectively connected with the intermediate relay KA6 and the intermediate relay KA7 in series;
the intelligent controller collects the operating environment temperature of the KYN high-voltage switch cabinet, the chassis handcart motor current, the grounding knife switch motor current and the alternating-current three-phase voltage for monitoring;
the input points AD0, AD1, AD2 and AD3 of the intelligent controller are respectively analog quantity acquisition points of a temperature isolator, a chassis handcart motor current transmitter, a grounding switch motor current transmitter and an alternating current three-phase voltage transmitter, and are used for monitoring the environment temperature, the motor running state and whether the three phases are balanced;
the circuit breaker energy storage motor is used for stretching a closing or opening spring when being started so as to enable the closing or opening spring to have corresponding potential energy;
the chassis handcart driving mechanism is used for driving a worm gear transmission mechanism of a chassis handcart to enable the chassis handcart to shake in and out, and when the position of the chassis handcart triggers a limit switch for shaking in and out of the chassis handcart, the intelligent controller controls the chassis handcart driving mechanism to stop working;
the grounding knife switch driving mechanism is used for driving the grounding knife switch transmission mechanism to control the opening and closing of the grounding knife switch, when the grounding knife switch and the closed limit switch are triggered, the grounding knife switch is indicated to be in place, and the grounding knife switch driving mechanism stops working;
the circuit breaker opening and closing driving mechanism enables the circuit breaker to be opened or closed by switching on the opening coil or the closing coil, and determines whether the opening or closing is in place or not by the opening and closing in-place sensor of the circuit breaker, and the opening and closing in-place sensor serves as a judgment basis for cutting off a power supply of the opening coil or the closing coil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110085265.6A CN112736749B (en) | 2021-01-22 | 2021-01-22 | KYN high tension switchgear intelligence control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110085265.6A CN112736749B (en) | 2021-01-22 | 2021-01-22 | KYN high tension switchgear intelligence control system |
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| CN112736749A CN112736749A (en) | 2021-04-30 |
| CN112736749B true CN112736749B (en) | 2023-04-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114821989A (en) * | 2022-03-23 | 2022-07-29 | 国网山东省电力公司惠民县供电公司 | A trolley switch isolation baffle blocking alarm device |
| CN115036834A (en) * | 2022-06-21 | 2022-09-09 | 华仪电气股份有限公司 | A kind of control system of high voltage switchgear |
| CN118712930B (en) * | 2024-08-28 | 2024-12-17 | 安德利集团有限公司 | Mobile high-voltage switch cabinet with electric handcart control function |
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| CN110391602A (en) * | 2019-08-29 | 2019-10-29 | 吴晨 | Automatic switch cabinet |
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| CN110021883A (en) * | 2018-01-09 | 2019-07-16 | 中国石油化工股份有限公司 | Prevent high-tension switch cabinet from burning the method for cabinet |
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