CN115459432A - High-voltage switch cabinet equipment and method thereof - Google Patents
High-voltage switch cabinet equipment and method thereof Download PDFInfo
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- CN115459432A CN115459432A CN202210928993.3A CN202210928993A CN115459432A CN 115459432 A CN115459432 A CN 115459432A CN 202210928993 A CN202210928993 A CN 202210928993A CN 115459432 A CN115459432 A CN 115459432A
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- handcart
- power failure
- switch cabinet
- voltage switch
- power transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/143—Arrangement of several locks, e.g. in parallel or series, on one or more wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/02—Locks or fastenings for special use for thin, hollow, or thin-metal wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
- E05C19/166—Devices holding the wing by magnetic or electromagnetic attraction electromagnetic
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structural Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses high-voltage switch cabinet equipment and a method thereof. The equipment comprises a main control module, wherein a main control person sends an instruction through the main control module, so that the instruction is communicated to an intelligent control module through a bus; the intelligent control module controls the electrical control system to enable the high-voltage switch cabinet to be in a standby state, waits for unlocking of an operator, and assists the operator in performing secondary confirmed power transmission test, power transmission operation, power failure operation, handcart pulling-out operation or power failure maintenance operation; an electrical control system includes a plurality of sensors, a cabinet lock module, and a screen module. The invention also comprises a high-voltage switch cabinet equipment lock which needs to be unlocked simultaneously by the cabinet lock module and the high-voltage switch cabinet lock. The invention also comprises a high-voltage switch cabinet method executed by the equipment. The invention realizes that major accidents are prevented by secondary confirmation at lower cost.
Description
Technical Field
The invention relates to equipment of a high-voltage switch cabinet of a power plant, in particular to semi-automatic high-voltage switch cabinet equipment and a method thereof.
Background
In the starting and grid-connection processes of a power plant, when a high-voltage switch needs to be operated, the steps are complex. Generally, after the operation operator obtains a master control or a value order, the operation operator carries an operation ticket, a required key and a tool to go to a booster station, finds a switch interval required to be operated, and performs related electrical operations of power transmission, power failure operation, handcart pulling-out and power failure maintenance on a control cabinet in the switch interval. In the process, the operator needs to communicate with the master control frequently to confirm whether the operation interval, the unit condition and the operation condition are still met. This results in many links, communication and error-prone in the process from the main control command transmission to the actual operation. Operation errors occur in the power generation industry, and major power accidents are easily caused.
Therefore, how to install high-voltage switch cabinet equipment additionally, with lower cost, through secondary confirmation, prevent that operating personnel from walking wrong interval, opening wrong high-voltage switch cabinet and maloperation, and lead to taking place great electric power accident, cause the loss of great property and life safety.
Disclosure of Invention
The invention aims to provide high-voltage switch cabinet equipment and a high-voltage switch cabinet equipment lock, which are used for solving the problem of serious power accidents caused by wrong intervals, wrong opening of a high-voltage switch cabinet and wrong operation of an operation operator, and comprise the following components:
the main control module is used for sending an instruction by a main control person to enable the instruction to be communicated to the intelligent control module through a bus;
the intelligent control module controls the electrical control system according to the instruction, so that the high-voltage switch cabinet is in a standby state, waits for unlocking of an operator, and assists the operator in performing secondary confirmed power transmission test, power transmission operation, power failure operation, handcart pulling-out operation or power failure overhaul operation;
an electrical control system includes a plurality of sensors, a cabinet lock module, and a screen module.
The high-voltage switch cabinet equipment lock comprises:
the cabinet lock module and the high-voltage switch cabinet lock are arranged;
the cabinet lock module is a lock control relay and an execution element;
the opening of the high-voltage switch cabinet door requires the simultaneous unlocking of the cabinet lock module and the high-voltage switch cabinet lock.
Correspondingly, the invention also provides a method for the high-voltage switch cabinet, which comprises the following steps:
judging the switch interval, the high-voltage switch cabinet and the operation to be executed as a power transmission test, a power transmission operation, a power failure operation, a handcart pulling-out operation or a power failure maintenance operation of the high-voltage switch cabinet;
the high-voltage switch cabinet is in a standby state, waits for unlocking of an operator, and performs power transmission test, power transmission operation, power failure operation, handcart pulling-out operation or power failure maintenance operation of secondary confirmation.
Therefore, through the technical scheme of this application, can realize with lower cost, to high tension switchgear's semi-automatic control, prevent that operating personnel from because of walking wrong interval, opening wrong high tension switchgear and producing the maloperation, and lead to major accident.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a CAN bus network system structure of the present invention;
FIG. 2 illustrates a circuit schematic of the electrical control system and intelligent control module of the present invention;
FIG. 3 is a schematic diagram showing the relationship between the electrical control system and the intelligent control module of the present invention;
fig. 4 shows a structural diagram of a KYN28 high-voltage switch cabinet with the equipment of the invention added;
fig. 5 shows a flow diagram of a method of the invention for a semi-automatic high-voltage switchgear;
fig. 6 shows a flow chart of a power transmission test method of the semi-automatic high-voltage switch cabinet.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The embodiment of the application provides a high tension switchgear equipment and high tension switchgear equipment lock for solve the operation operating personnel because of walking wrong interval, opening wrong high tension switchgear and maloperation and lead to great electric power accident, equipment includes:
master control module, the master control personnel pass through master control module, give-out order, make this instruction pass through bus communication, to intelligent control module, specifically do:
the command is a switch interval and a high-voltage switch cabinet which need to be operated, and the operation which needs to be operated is a power transmission test, a power transmission operation, a power failure operation, a handcart pulling-out operation or a power failure maintenance operation of the high-voltage switch cabinet.
As shown in fig. 1, the main control module includes an upper industrial personal computer and a CAN bus adapter card based on ISA specification, the upper industrial personal computer receives instructions of main control personnel, and the instructions are sent to a CAN bus through the CAN bus adapter card based on ISA specification to perform bus communication with the intelligent control module.
As shown in fig. 1, the BUS communication is CAN (Controller Area Network) BUS communication, and the CAN BUS is specifically a CAN BUS twisted pair BUS, which is divided into two signal lines of the CAN BUS, namely CANL and CANH. And the external connection of a terminal resistor is facilitated at two end points of CANH and CANL.
As shown in fig. 1, the intelligent control module and the electrical control system are respectively installed in each high-voltage switch cabinet.
Therefore, the device CAN prevent the phenomenon that when the system has errors and multiple nodes send data to the bus at the same time, the bus is short-circuited to damage certain nodes, and the reliability of the device is high and the cost is low through CAN (Controller Area Network) bus communication.
The intelligent control module controls the electrical control system according to the instruction, so that the high-voltage switch cabinet is in a standby state, waits for the unlocking of an operator, and assists the operator to perform secondary confirmation on power transmission test, power transmission operation, power failure operation, handcart pull-out operation or power failure maintenance operation, and the intelligent control module specifically comprises:
as shown in fig. 2, two ports CANH and CANL of the CAN transceiver in the intelligent control module are connected to the physical CAN bus to receive the instruction sent by the main control module, the Rs end of the CAN transceiver is grounded through a resistor R2, the GND end is grounded, the VCC end is connected to the power supply, the RXD end is a data receiving output end, and the TXD end is a data sending input end. The RXD end and the TXD end are connected into a single chip microcomputer, a CAN controller is arranged in the single chip microcomputer, and a plurality of General-purpose input/output (GPIO) General-purpose input/output ports of the single chip microcomputer are connected into an electric control system in a bus mode.
Specifically, in this embodiment, the model of the CAN transceiver may be PCA82C250, the model of the single chip microcomputer may be STM32F103C8T6, and in other embodiments, the model may also be other models.
The electrical control system comprises a plurality of sensors, a cabinet lock module and a screen module, as shown in fig. 3, specifically:
the sensors are a contact sensor, a grounding knife sensor and a photoelectric sensor.
The photoelectric sensors are three color sensors.
The plurality of sensors, the cabinet lock module and the screen module are connected to a universal input/output port of the single chip microcomputer through a bus, so that the single chip microcomputer can receive input information of the single chip microcomputer and output the information to control the cabinet lock module and the screen module.
Therefore, the device shown in fig. 1 CAN receive an instruction sent by the master control module through the CAN bus communication to the single chip microcomputer, and control the electrical control system according to a control program in the single chip microcomputer, so as to assist an operator to perform semi-automatic power transmission test, power transmission operation, power failure operation, handcart pulling-out operation or power failure maintenance operation at low cost.
This application equipment and equipment lock can install additional to the high tension switchgear on the basis that does not change high tension switchgear structure and appearance to supplementary operating personnel carry out the power transmission experiment, power transmission operation, the operation of having a power failure, handcart pull-out operation or the operation of having a power failure of secondary confirmation.
The secondary confirmation is that the operator unlocks the high-voltage switch cabinet in the standby state, and the main control personnel controls the electrical control system through the intelligent control module in a power transmission test, a power transmission operation, a power failure operation, a handcart pull-out operation or a power failure maintenance operation to confirm the operation of the operator and the running state of the high-voltage switch cabinet.
In this embodiment, the relationship between the apparatus and the apparatus lock of the present application and the KYN28 high-voltage switch cabinet is, as shown in fig. 4, specifically:
high tension switchgear KYN28 is indoor metal armor and removes open-type high tension switchgear, and the installation relation of this application equipment and KYN28 is as shown in fig. 2, and this application equipment also can be used to other high tension switchgear.
High tension switchgear KYN28 cabinet body includes: bus bar room 4, cable room 6, circuit breaker handcart room 9, instrument room 17 and casing 1.
And a branch bus 2, a bus sleeve 3 and an upper contact box 5 are arranged in the bus chamber 4.
And a grounding switch 7, a cable 8, a grounding bus 10, a grounding switch operating mechanism 16 and a lower contact box 5 are arranged in the cable chamber 6.
The grounding switch 7 is provided with a grounding cutter bar 23, and the opening and closing of the grounding switch 7 can control the opening and closing of the grounding cutter.
The grounding switch operating mechanism 16 and the grounding switch 7 are connected by a grounding knife sensor 22, which can detect whether the grounding switch operating mechanism 16 and the grounding switch 7 are connected or not, thereby detecting the opening and closing of the grounding knife.
The upper contact box 5 and the lower contact box 5 are respectively provided with a contact sensor 21 which can detect whether the cabinet door 12 is in a closed position.
And a secondary plug 13, a circuit breaker handcart 14 and a drawable horizontal partition plate 15 are arranged in the circuit breaker handcart chamber 9.
The circuit breaker handcart 14 is fixed on the extractable horizontal partition plate 15 and can move along with the extractable horizontal partition plate 15.
The lower part of the extractable horizontal partition plate 15 is provided with 2 contact sensors 20 which are respectively positioned at a test position and a working position and can detect that the circuit breaker handcart 14 is not pushed in or positioned at the test position or the working position.
The secondary plug 13 is connected with a breaker handcart 14 in a fastening mode.
The instrument room 17 is provided with a three-phase indicator light, a bus voltage display, an outgoing line current display, a local remote operation mode selection knob and a breaker opening and closing switch.
The intelligent control module 18 of the device is located in the instrument room 17, and is connected with a contact sensor 21, a contact sensor 20, a grounding switch sensor 22, a color sensor 25, a screen module 24 and a cabinet lock module 19.
The color sensor 25 is a three RGB (Red Green Blue) color sensor module, which detects whether the three-phase indicator light, the bus voltage, and the indicator light of the outgoing line current are Green, and determines whether the three-phase indicator light, the bus voltage, and the outgoing line current are normal, red is abnormal, and Green is normal.
The shell 1 comprises a detachable clapboard 11 and a cabinet door 12.
The cabinet lock module 19 is located on the cabinet door 12 of the housing 1, and whether the cabinet door 12 can be opened or not is controlled, and through the door of the housing 1, an operator can see the instrument room 17 and push the crank through a handcart, so that the circuit breaker handcart can be pushed in and pushed out.
Access to the cable compartment 6 and the busbar compartment 4 is made available to service personnel through doors and cabinet doors 12 located in the housing 1.
Specifically, the cabinet lock module 19 is a lock control relay and an electromagnet.
According to the fact that a master control worker determines a switch interval and a high-voltage switch cabinet which need to be operated through a master control module 26, and an intelligent control module 18 of an electrical control system of the corresponding high-voltage switch cabinet obtains signals sent by the master control module 26 through communication, the master control module 26 enables a lock control relay of a cabinet lock module 19 to be turned off, an electromagnet is powered off, the high-voltage switch cabinet is enabled to be in a standby state, the lock control relay is enabled to be turned on when the master control worker waits for unlocking with a key, and the electromagnet is powered on to enable the high-voltage switch cabinet not to be opened.
Therefore, intelligent control module can control electrical control system according to the instruction, makes high tension switchgear be in the state of awaiting orders, waits for operating personnel to use the key unblock, specifically is:
according to the main control personnel, the switch interval and the high-voltage switch cabinet which need to execute operation are determined through the main control module 26, and the intelligent control module 18 of the electrical control system of the corresponding high-voltage switch cabinet obtains signals sent by the main control module through communication, and the electromagnet in the cabinet lock module 19 is powered off, so that the high-voltage switch cabinet is in a standby state.
In the power transmission test, intelligent control module controls electrical control system, confirms that earthing switch separating brake, closing cabinet door and handcart push away experimental position, otherwise gives error display and sends error message, confirms that three-phase pilot lamp and bus voltage and outgoing line current are normal, otherwise gives the warning and shows and send alarm information, include:
according to the information of the switch interval and the high-voltage switch cabinet which need to be operated, the operation to be executed and the operation to be executed, which are determined by the master control personnel through the master control module 26, the intelligent control module 18 of the electric control system of the corresponding high-voltage switch cabinet obtains the information through communication, and then the intelligent control module 18 confirms that the grounding switch is opened, the cabinet door 12 is closed and the handcart is pushed to the test position according to the input signals of the grounding switch sensor 22, the contact sensor 21 and the contact sensor 20, otherwise, error display and error information are given. And confirming that the three-phase indicator lamp, the bus voltage and the outgoing line current are normal according to input signals of the three light color sensors 25, and otherwise, giving alarm display and sending alarm information.
In the power transmission operation, intelligent control module controls electrical control system, confirms that the handcart pushes away to the operating position, otherwise gives the error display and sends error message, confirms that three-phase pilot lamp and busbar voltage and outgoing line current are normal, otherwise gives the warning and shows and send alarm information, includes:
according to the information of the switch interval and the high-voltage switch cabinet which need to be operated and the operation to be executed, which are determined by the master control personnel through the master control module 26, the intelligent control module 18 of the electric control system of the corresponding high-voltage switch cabinet obtains the information through communication, and then the intelligent control module 18 automatically detects that the handcart is pushed to the working position through the input signal of the contact type sensor 20, otherwise, the error display and the sending of error information are given.
And confirming that the three-phase indicator lamp, the bus voltage and the outgoing line current are normal according to input signals of the three color sensors 25, and otherwise, giving alarm display and sending alarm information.
In the power failure operation, intelligent control module controls electrical control system, confirms that three-phase pilot lamp extinguishes, the handcart pushes away to the test position, otherwise gives the error display and sends error message, includes:
according to the information of the switch interval and the high-voltage switch cabinet which need to be operated and the operation to be executed, the intelligent control module 18 of the electrical control system of the corresponding high-voltage switch cabinet is determined through the main control module 26 according to the information of the operation to be executed and the operation to be executed, after the information is obtained through communication, the intelligent control module 18 confirms that the three-phase indicator lamp is turned off and the handcart is pushed to a test position through input signals of the three color sensors 25, and otherwise, error display and error information sending are given.
And the three-phase indicator light is turned off, namely the power of the outgoing line side is cut off.
During handcart pull-out operation and the operation of overhauing that has a power failure, intelligent control module controls electrical control system, confirms to accomplish power failure operation, earthing switch combined floodgate operation, otherwise gives the error display and sends error message, include:
according to the information of the switch interval and the high-voltage switch cabinet which need to be operated and the operation to be executed which are determined by the master control personnel through the master control module 26, after the information is obtained by the intelligent control module 18 of the electrical control system of the corresponding high-voltage switch cabinet through communication, the intelligent control module 18 automatically confirms that the three-phase indicator light is turned off and the handcart is pushed to the test position through the input signals of the three color sensors 25 and the contact sensor 20, and then the power failure operation is completed; and confirming that the grounding knife closing operation is completed through the grounding knife sensor 22, otherwise, giving error display and sending error information.
A screen module of the electrical control system gives error display and alarm display;
the intelligent control module sends error information and alarm information to the main control module through bus communication, so that main control personnel can confirm the operation of the operating personnel and the running state of the high-voltage switch cabinet by controlling the electrical control system through the intelligent control module in power transmission tests, power transmission operation, power failure operation, handcart pull-out operation or power failure overhaul operation.
Semi-automatic high tension switchgear equipment lock includes:
a cabinet lock module 19 and a high-voltage switch cabinet lock;
the cabinet lock module is a lock control relay and an electromagnet and is positioned on the inner wall of the cabinet door 12.
The lock control relay is switched on to enable the electromagnet to be electrified, magnetic and attract the high-voltage switch cabinet door 12, and the lock control relay is switched off to enable the electromagnet to be de-electrified, non-magnetic and not attract the high-voltage switch cabinet door 12;
the high-voltage switch cabinet lock needs to be unlocked by an operator with a key;
the opening of the high-voltage switch cabinet door 12 requires the simultaneous unlocking of the cabinet lock module and the high-voltage switch cabinet lock.
Therefore, through the equipment of this application, can realize the secondary confirmation to high tension switchgear, prevent that operating personnel from because of walking wrong interval, opening wrong high tension switchgear and producing the maloperation, and lead to major accident.
The embodiment of the application provides a method for a high-voltage switch cabinet, and as shown in fig. 3, the method includes:
judging the switch interval, the high-voltage switch cabinet and the operation to be executed as a power transmission test, a power transmission operation, a power failure operation, a handcart pulling-out operation or a power failure maintenance operation of the high-voltage switch cabinet;
the high-voltage switch cabinet is in a standby state, waits for unlocking of an operator, and performs power transmission test, power transmission operation, power failure operation, handcart pulling-out operation or power failure maintenance operation of secondary confirmation.
The secondary confirms that after master control personnel send the instruction, operating personnel obtains master control personnel's instruction, the corresponding high tension switchgear of unblock to in power transmission test, power transmission operation, power failure operation, handcart pull-out operation or the maintenance operation that has a power failure, through this application equipment, confirm operating personnel's operation and high tension switchgear running state, can prevent to a great extent that operating personnel from because of walking wrong interval, opening wrong high tension switchgear and maloperation, and lead to great electric power accident.
The power transmission test is that operating personnel impels ground connection sword separating brake, circuit breaker handcart test position, closes the cabinet door, confirms ground connection sword separating brake, closes the cabinet door and the handcart pushes away to test position, otherwise gives error display and sends error message, confirms that three-phase pilot lamp and bus voltage and the electric current of being qualified for the next round of competitions is normal, otherwise gives the warning and shows and send alarm information, as shown in fig. 6, specifically is:
after a power transmission test is started, the device automatically detects whether the grounding switch is switched off, if so, an operator pushes a circuit breaker handcart into a test position, closes a cabinet door and judges whether the circuit breaker handcart is pushed to the test position; if not, whether the grounding switch is opened or not is continuously detected, and error display and error information sending are given.
If the circuit breaker handcart is pushed to the test position, an operator closes and divides the circuit breaker once, and detects whether the three-phase indicator lamp, the bus voltage and the outgoing line current are normal or not; otherwise, whether the circuit breaker handcart is pushed to the test position or not is continuously judged, and error display and error information sending are given.
If the three-phase indicator light, the bus voltage and the outgoing line current are normal, whether an updating operation signal exists is detected; otherwise, giving alarm display and sending alarm information, and re-detecting whether the three-phase indicator lamp, the bus voltage and the outgoing line current are normal or not.
If the updating operation signal exists, the power transmission test is ended; otherwise, the circuit breaker is closed and divided once by the operator, the three-phase indicator lamp, the bus voltage and the outgoing line current are continuously detected, and whether the operation signal is updated or not is detected.
Specifically, after the electric control system obtains a grounding switch opening signal, an indication of handcart shake-in is displayed through the screen module, after an operator sees the handcart shake-in indication displayed by the screen module, the operating valve of the handcart mechanism is opened, the crank is pushed in through the handcart, the circuit breaker handcart is pushed into a test position of the high-voltage switch cabinet, the handcart pushing mechanism is reliably locked with the switch cabinet, and a cable door and a circuit breaker door of the high-voltage switch cabinet are closed.
In this embodiment, the circuit breaker handcart advances the operation of KYN28 high tension switchgear and inwards pulls to inboard handle position simultaneously for operating personnel with the left and right handles of circuit breaker handcart to promote the experimental position that the crank pushed the handcart into KYN28 cubical switchboard through the handcart, then outwards push the handle position outside simultaneously about with the handcart, make handcart advancing mechanism and cubical switchboard reliable locking, operating personnel inserts the secondary plug of handcart in the secondary plug of KYN28 cubical switchboard, and lock with the fastener.
Specifically, operating personnel closes with the local and respectively once of branch with remote operation mode control circuit breaker to observe three-phase pilot lamp, busbar voltage and the electric current of being qualified for the next round of competitions in the instrument room, this application equipment is through detecting whether three-phase pilot lamp, busbar voltage and the electric current of being qualified for the next round of competitions are in normal range, and it is correct to confirm circuit breaker control circuit wiring and signal circuit demonstration, if detect the appearance unusually, then pass through the communication with the test failure signal, send the host system of this application equipment to, inform this high tension switchgear of master control personnel needs maintenance.
Consequently, this application is confirmed, this application equipment advances the secondary of test position, closing the cabinet door to the circuit breaker handcart through the secondary of master control personnel to three-phase pilot lamp, bus voltage in the instrument room and the electric current of being qualified for the next round of competitions, can prevent to the at utmost that equipment from makeing mistakes or operating personnel maloperation.
The power transmission operation is that operating personnel pushes the circuit breaker handcart into the work position, makes the circuit breaker switch-on, confirms that the handcart pushes away the work position, otherwise gives error display and sends error message, confirms that three-phase pilot lamp and bus voltage and outgoing line current are normal, otherwise gives the warning display and sends alarm message, specifically is:
after seeing the power transmission starting operation displayed by the screen module, an operator opens the operation door of the circuit breaker handcart mechanism, pushes the circuit breaker handcart into the working position of the switch cabinet clockwise by pushing the crank by the handcart, takes out the circuit breaker handcart to push the crank and close the operation door of the circuit breaker handcart mechanism, and the circuit breaker handcart reaches the working position and gives out a click-type buckling and locking sound;
the device automatically detects that the handcart is pushed to a test position;
an operator controls and operates the breaker to close by using a local or remote operation mode;
the equipment automatically checks whether the three-phase indicator lamp of the electrified display of the high-voltage switch cabinet is on, and at the moment, the high-voltage switch cabinet is in a high-voltage electrified state, and the equipment automatically measures whether the bus voltage and the outgoing current displayed by the microcomputer protection device are in a normal range.
Therefore, the secondary confirmation of the three-phase indicator lamp, the bus voltage and the outgoing line current in the instrument room by the master control personnel and the secondary confirmation of the pushing working position of the breaker handcart by the equipment can be prevented to the greatest extent, so that the equipment is prevented from being mistaken or the misoperation of the operator is avoided, and a major power accident is caused.
The power failure operation method is that an operator opens a circuit breaker, pushes a handcart to a test position, confirms that a three-phase indicator lamp is turned off and the handcart is pushed to the test position, otherwise gives error display and sends error information, and specifically comprises the following steps:
an operator adjusts the high-voltage switch cabinet to be in a local operation mode, so that the breaker is opened;
the equipment automatically checks that a three-phase indicator lamp of an electrified display of a high-voltage switch cabinet is turned off, and at the moment, the switch cabinet is in a high-voltage outgoing line side and is powered off, and a high-voltage bus side is still in an electrified state;
after seeing that the three-phase indicator light goes out, an operator opens the handcart mechanism operating valve, pushes the crank to withdraw the handcart to the test position of the switch cabinet in the anticlockwise direction by using the handcart, and sends out a 'click' locking sound when the handcart reaches the test position, and takes out the handcart to push the crank and close the handcart mechanism operating valve.
The circuit breaker is arranged on a circuit breaker handcart.
When the circuit breaker handcart is in a switch cabinet test position, the circuit breaker handcart belongs to a power failure standby state.
Therefore, the secondary confirmation of the three-phase indicator lamp, the bus voltage and the outgoing line current in the instrument room by the master control personnel and the secondary confirmation of the pushing test position of the device to the circuit breaker handcart can be prevented to the greatest extent, so that the device is prevented from being mistaken or misoperation by operating personnel, and a major power accident is caused.
Handcart pull-out operation accomplishes the power failure operation, makes the circuit breaker combined floodgate for operating personnel, confirms to accomplish power failure operation, grounding switch combined floodgate operation, otherwise gives error display and sends error message, and operating personnel pulls out the circuit breaker handcart, closes the qianmen, specifically does:
judging whether the power failure operation is finished or not, specifically:
the device automatically detects that the three-phase indicator lamp is turned off and the circuit breaker handcart is in a switch cabinet test position;
the equipment automatically confirms that the grounding knife is in a closing state, and a screen module of the equipment displays that closing is completed;
after an operator sees that the screen module displays that closing is completed, the equipment unlocks the cabinet door, the operator opens a door of a circuit breaker chamber of the high-voltage switch cabinet, and a secondary plug of a circuit breaker handcart is pulled out;
an operator places and locks the circuit breaker handcart at a designated position in front of the switch cabinet;
specifically, the left handle and the right handle of the handcart are simultaneously pulled inwards to the positions outside the handles, the handcart is pulled out to the transfer trolley, and the left handle and the right handle of the handcart are simultaneously pushed outwards to the positions inside the handles and are reliably locked with the lock hole of the transfer trolley.
The upper and lower static contact protection valve in this application equipment automatic check cubical switchboard is in closed position, closes circuit breaker room door.
Therefore, the secondary confirmation of the three-phase indicator lamp in the instrument room, the bus voltage and the outgoing line current and the secondary confirmation of the device at the test position of the circuit breaker handcart are performed by the master control personnel, so that the device can be prevented from being mistaken or misoperation of the operating personnel to the greatest extent, and a major power accident is caused.
The maintenance operation that has a power failure accomplishes the operation that has a power failure, makes the circuit breaker combined floodgate for operating personnel, confirms to accomplish the operation that has a power failure, ground connection sword combined floodgate operation, otherwise gives the error display and sends error message, and operating personnel judges whether the conducting segment has a power failure and gives and allows the maintainer entering signal, specifically does:
the equipment judges whether the power failure operation and the grounding knife switching-on are finished or not;
specifically, the equipment judges whether the on-site operation mode, the three-phase indicator light of the electrified display is turned off, the handcart of the circuit breaker is positioned at the test position of the switch cabinet and the grounding switch is switched on, if so, a screen module of the equipment displays to-be-maintained, and if not, the screen module displays power failure and executes power failure operation;
the operating personnel sees the screen module demonstration and waits to maintain, opens cable chamber door, tests electric installation with the high pressure and detects and confirm that all conductive part in the cable chamber is in the power failure state completely after, and the maintainer just can get into the high tension cable room and carry out work.
The error display and the alarm display are screen display corresponding information;
the error information and the alarm information are corresponding information obtained by the main control module and main control personnel.
The secondary confirmation is that the operator unlocks the high-voltage switch cabinet in the standby state, and the main control personnel controls the electrical control system through the intelligent control module in a power transmission test, a power transmission operation, a power failure operation, a handcart pull-out operation or a power failure maintenance operation to confirm the operation of the operator and the running state of the high-voltage switch cabinet.
Therefore, the secondary confirmation of the three-phase indicator lamp, the bus voltage and the outgoing line current in the instrument room and the secondary confirmation of the device to the closing operation of the grounding switch can be realized through the master control personnel, so that the misoperation of the device error operation personnel can be prevented to the greatest extent, and the serious electric power accident is caused.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. A high voltage switchgear apparatus comprising:
the main control module is used for sending an instruction by a main control person to enable the instruction to be communicated to the intelligent control module through a bus;
the intelligent control module controls the electrical control system according to the instruction, so that the high-voltage switch cabinet is in a standby state, waits for unlocking of an operator, and assists the operator in performing secondary confirmed power transmission test, power transmission operation, power failure operation, handcart pulling-out operation or power failure overhaul operation;
the electric control system comprises a plurality of sensors, a cabinet lock module and a screen module;
the intelligent control system is characterized by comprising an intelligent control module and an electric control system.
2. The apparatus of claim 1, wherein the master module comprises:
the command is a switch interval needing to be operated, the high-voltage switch cabinet and the operation needing to be operated is a power transmission test, a power transmission operation, a power failure operation, a handcart pulling-out operation or a power failure maintenance operation of the high-voltage switch cabinet;
the bus communication is a CAN (Controller Area Network) bus communication.
3. The apparatus of claim 1, wherein the intelligent control module comprises:
a CAN transceiver and a single chip microcomputer;
the secondary confirmation is that the high-voltage switch cabinet in the standby state is unlocked by an operator, and the main control personnel controls the electrical control system through the intelligent control module in a power transmission test, a power transmission operation, a power failure operation, a handcart pull-out operation or a power failure maintenance operation to confirm the operation of the operator and the running state of the high-voltage switch cabinet.
4. The apparatus of claim 3, wherein the power delivery test, power delivery operation, power outage operation, hand truck pull-out operation, or power outage repair operation comprises:
in the power transmission test, the intelligent control module controls the electrical control system, confirms that the grounding switch is opened, the cabinet door is closed and the handcart is pushed to a test position, otherwise gives out error display and sends error information, confirms that the three-phase indicator lamp and bus voltage and outgoing line current are normal, and otherwise gives out alarm display and sends alarm information;
in the power transmission operation, the intelligent control module controls the electrical control system to confirm that the handcart is pushed to a working position, otherwise, error display and sending error information are given, the three-phase indicator lamp, the bus voltage and the outgoing line current are confirmed to be normal, and otherwise, alarm display and sending alarm information are given;
in the power failure operation, the intelligent control module controls the electrical control system to confirm that the three-phase indicator lamp is turned off and the handcart is pushed to a test position, and otherwise, error display and error information sending are given;
in the handcart pulling-out operation and the power failure overhauling operation, the intelligent control module controls the electrical control system to confirm that the power failure operation and the grounding knife closing operation are finished, and otherwise, error display and error information sending are given;
a screen module of the electrical control system gives error display and alarm display;
the intelligent control module sends error information and alarm information to the main control module through bus communication.
5. The apparatus of claim 1, wherein the electrical control system comprises:
the sensors comprise a contact sensor, a grounding knife sensor and three color sensors;
the three color sensors respectively detect whether the three-phase indicator light, the bus voltage and the outgoing line current are normal or not;
the cabinet lock module is a lock control relay and an execution element;
and the lock control relay is switched on to lock the cabinet door of the high-voltage switch cabinet, and is switched off to enable the cabinet door of the high-voltage switch cabinet to be in a standby state.
6. A high voltage switchgear lock comprising:
the cabinet lock module and the high-voltage switch cabinet lock are arranged;
the cabinet lock module is a lock control relay and an execution element;
the opening of the cabinet door of the high-voltage switch cabinet requires that the cabinet lock module and the cabinet lock of the high-voltage switch cabinet are unlocked simultaneously.
7. A method of high voltage switchgear comprising:
judging the switch interval, the high-voltage switch cabinet and the operation to be executed as a power transmission test, a power transmission operation, a power failure operation, a handcart pulling-out operation or a power failure maintenance operation of the high-voltage switch cabinet;
the high-voltage switch cabinet is in a standby state, waits for unlocking of an operator, and performs secondary confirmed power transmission test, power transmission operation, power failure operation, handcart pulling-out operation or power failure overhauling operation.
8. The method of claim 7, wherein determining the switch interval at which the operation needs to be performed, the high-voltage switch cabinet, and the operation that needs to be performed are a power transmission test, a power transmission operation, a power outage operation, a handcart pull-out operation, or a power outage overhaul operation of the high-voltage switch cabinet comprises:
the master control personnel judge the switch interval, the high-voltage switch cabinet and the operation to be executed to be the power transmission test, the power transmission operation, the power failure operation, the handcart pulling-out operation or the power failure maintenance operation of the high-voltage switch cabinet through the master control module.
9. The method of claim 7, wherein the power delivery test, power delivery operation, power outage operation, hand truck pull-out operation, or power outage repair operation comprises:
the power transmission test is that an operator pushes the grounding switch to be opened and the circuit breaker handcart to a test position, closes the cabinet door, confirms that the grounding switch to be opened, the cabinet door to be closed and the handcart to be pushed to the test position, otherwise, gives error display and sends error information, confirms that the three-phase indicator lamp and the bus voltage and the outgoing line current are normal, and otherwise, gives alarm display and sends alarm information;
the power transmission operation is that an operator pushes a circuit breaker handcart into a working position to switch on the circuit breaker, confirms that the handcart is pushed to the working position, otherwise, gives error display and sends error information, confirms that a three-phase indicator lamp and bus voltage and outgoing line current are normal, and otherwise, gives alarm display and sends alarm information;
the power failure operation method comprises the steps that an operator opens a breaker, pushes a handcart to a test position, confirms that a three-phase indicator lamp is turned off and the handcart is pushed to the test position, and otherwise, gives error display and sends error information;
the handcart pulling-out operation is that an operator finishes power failure operation, closes a circuit breaker, confirms that the power failure operation and the grounding knife closing operation are finished, otherwise gives error display and sends error information, and the operator pulls out a handcart of the circuit breaker and closes a front door;
the power failure maintenance operation is that an operator completes power failure operation, closes a circuit breaker, confirms that the power failure operation and the grounding knife closing operation are completed, otherwise gives error display and sends error information, and the operator judges whether a conductive part has power failure and gives a signal allowing the maintenance personnel to enter;
the error display and the alarm display are screen display corresponding information;
the error information and the alarm information are corresponding information obtained by the main control module and main control personnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210928993.3A CN115459432A (en) | 2022-08-03 | 2022-08-03 | High-voltage switch cabinet equipment and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210928993.3A CN115459432A (en) | 2022-08-03 | 2022-08-03 | High-voltage switch cabinet equipment and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115459432A true CN115459432A (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210928993.3A Pending CN115459432A (en) | 2022-08-03 | 2022-08-03 | High-voltage switch cabinet equipment and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116880385A (en) * | 2023-07-06 | 2023-10-13 | 华能(广东)能源开发有限公司汕头电厂 | Control method and system of intelligent switch cabinet |
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2022
- 2022-08-03 CN CN202210928993.3A patent/CN115459432A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116880385A (en) * | 2023-07-06 | 2023-10-13 | 华能(广东)能源开发有限公司汕头电厂 | Control method and system of intelligent switch cabinet |
| CN116880385B (en) * | 2023-07-06 | 2024-05-10 | 华能(广东)能源开发有限公司汕头电厂 | Control method and system of intelligent switch cabinet |
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