KR101630232B1 - MCC panel applying wireless control - Google Patents

Abstract

(MCC) which removes the LOP panel and wiring which required a lot of electric wires and equipment, and applies radio control to operate the facilities in the MCC by radio through the control module and the wireless controller. The MCC module of the present invention is an MCC module capable of operating a circuit breaker having at least one circuit breaker, at least one control module capable of opening and closing the circuit breaker and detecting an abnormality of the circuit breaker; A communication repeater which is connected to the control module in a wired manner and is also connected to the central control means of the central control room by a wire; And a control unit connected to the communication repeater to wirelessly select any one of the one or more control modules,

Description

MCC panel applying wireless control with wireless control

The present invention relates to an MCC module, and more particularly, to a MCC module that eliminates an LOP module and a wiring that require a plurality of wires and equipment, and wirelessly transmits the MCC module to a control module and a wireless controller Control is applied to the MCC panel.

The MCC (MCCB), which houses the MCCB (Mold Case Circuit Breaker), is one of the most important facilities that make up the switchboard. Also, the MCC is designed to be installed in buildings, It is an essential facility for large-scale power facilities that need to selectively open and close main lines and branch lines using electric power. In addition, the above-mentioned MCC module can be used solely for a general electric load facility for a power supply switch.

Since the MCC module is generally divided into a main line and a branch line, a plurality of doors, a plurality of switches, a breaker, and the like are provided. In the conventional MCC module, a plurality of doors are provided And a breaker is installed inside. In order to operate the breaker, a local operation panel (LOP) is provided outside, and a wired connection is made between the breaker and the breaker inside the door of the MCC, The operator can operate the switch and the breaker to be operated in the MCC by operating the field operator. This is because it is for safety and the manager directly opens the door of the MCC door to operate the switch or the breaker because the risk of electric shock or other safety accidents is too high when considering the characteristics of the high voltage MCC equipment. Therefore, in order to directly operate the equipment in the MCC, it is generally impossible to shut off the power completely. As a result, it is impossible to manage the equipment. Therefore, it is necessary for the manager to install the MCC panel in the first place, .

However, since the conventional field control panel is installed at a fixed position, it is inconvenient for a manager to directly go to the field control panel and the operation panel must be installed in a space where the MCC panel is installed, which causes a waste of space, In addition, since the MCC panel and the operator panel are connected by a plurality of wired cables and are exposed to the outside, there is a risk of a safety accident that is less than a direct operation of the MCC panel, and unnecessary waste of resources Resulting in loss.

As a prior art related to the MCC module and the switchboard, the prior art 1 discloses a wiring breaker having an electronic tag and a remote management system thereof. In the prior art 1, the RFID tag is attached to the inside of the circuit breaker, the rating information of the circuit breaker for wiring and the line state information processed in real time are recorded in the RFID tag, and the manager uses the RFID reader So that it can grasp the state.

However, since the above-mentioned prior art 1 relates to a management system that can check the status of a switchboard, it does not substantially disclose a means for operating a state in the switchboard, and thus a great difference from the present invention in which the MCC class can be actually controlled And the communication means for grasping the status is limited to the RFID, which is different from the present invention.

(Hereinafter referred to as Prior Art 2) disclosing a line state information detection apparatus for a wiring breaker, and a wiring breaker equipped with a communication function are disclosed in Japanese Patent Laid-Open No. 10-1099573 (hereinafter referred to as Prior Art 3) The prior art 2 and the prior art 3 are different from the present invention in that they are used in the management system of the prior art 1 as a technique embodying the prior art 1.

In addition, there is a remote electric safety inspection system which can remotely monitor and control the earth leakage breaker and the breaker check, and there is a remote electric safety inspection system disclosed in Patent Document 10-0974333 (hereinafter referred to as Prior Art 4) The communication device is completely different from the control module of the present invention, and the prior art 3 is also different from the present invention because it does not provide a means for the user to directly control the blocking portion as an inspection system .

In addition, Patent Document 10-1081929 (hereinafter referred to as Prior Art 5) is an integrated panel monitoring system that monitors the data of panel data of all buildings and factories to prevent accidents caused by overcurrent or overvoltage in buildings and factories, However, the above-mentioned prior art 5 relates to a system for integrally managing distribution boards, and thus is not related to the present invention.

In addition, in the system for monitoring the leakage current transferred from each of the wiring breaker to each load and transmitting it to the smart meter, the multi-channel leakage current monitoring system of the Japanese Patent Application No. 10-1269757 (hereinafter referred to as Prior Art 6) And a multi-channel measurement unit, thereby reducing the size of the system and minimizing the communication line. However, the above-mentioned prior art 6 is also a monitoring system for a circuit breaker, and there is no mention of the control means. The above-mentioned prior art 6 is an invention in which a plurality of MCUs are connected in a master- .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an MCC module to which an administrator can wirelessly control an MCC module composed of a plurality of doors.

In order to accomplish the object of the present invention as described above,

At least one control module capable of opening and closing the breaker and detecting an abnormality of the breaker by means of an MCC panel capable of operating a breaker for wiring having at least one breaker; A communication repeater which is connected to the control module in a wired manner and is also connected to the central control means of the central control room by a wire; And a wireless controller connected wirelessly with the communication repeater to select and control one of the one or more control modules.

In the above, the one or more control modules each include a controller for checking and operating circuit breaker status and communicating with a communication repeater; A memory which is a storage device connected to the controller; One or more wired input terminals for connecting the controller to the circuit breaker and the communication repeater by wire; And a module display for providing status information of the control module and for operating the control module.

In the above, the wired input terminal may include a PT terminal for wired connection with the meter transformer; A CB terminal for wired connection with the breaker; A CT terminal for establishing a wired connection with the current transformer; And a repeater terminal connected to the communication repeater.

In the above, the controller may be a processing device that takes charge of calculation and operation; A controller power source for determining whether the control module connected to the controller operates; A signal converter for converting an externally input signal; A CB state input unit for determining an operation state of a control module connected to the controller; And a CB control output unit for determining opening and closing of a circuit breaker connected to the controller.

It is preferable that the above-mentioned processing apparatus use either an MPU (microprocessor) or a CPU (central processing unit).

In the above, the module display includes a power supply unit for determining whether the corresponding control module is operated or not; An operation position determination section for determining an operation right of the control module; A status lamp unit for providing the status of the corresponding control module to an administrator; And a manual operation unit for directly operating the corresponding control module.

In the above, the radio controller includes: an input switch unit for selecting one of the one or more control modules; A number display for allowing the user to inform the user of the control module selected by the wireless controller; An external status lamp unit for allowing the wireless controller to inform the operating rights of the selected control module; And an operation unit for allowing the radio controller to operate the selected control module.

In the above, it is preferable to use the 485 communication (RS-485) or the IEEE 802.3 LAN protocol as the wired communication method between the communication repeater and one or more control modules and the central control means of the central control room.

In the above, it is preferable that the radio communication means between the communication repeater and the radio controller uses the AM frequency, and the radio communication method uses the AM's ASK or FSK method.

According to the present invention, an administrator can effectively operate a plurality of breakers, switches, and the like in the MCC panel using a remote controller type radio controller, and the wireless controller and the control module communicate with each other wirelessly. And the risk of safety accidents is also reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural view of an MCC panel to which a radio control of the present invention is applied; FIG.
2 is a structural view showing a connection structure of a control module and a cutoff period for a partition and a wiring;
3 is a block diagram of the controller of the control module;
4 is a structural view showing a module display in a control module;
5 is an interface structure diagram of the radio controller.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in more detail with reference to the accompanying drawings. The following description is intended to assist in the understanding and understanding of the present invention, but is not to be construed as limiting the invention thereto. Those skilled in the art will appreciate that various modifications and changes may be made within the spirit of the invention as set forth in the following claims.

1 is a structural diagram of an MCC module 1000 to which a radio control of the present invention is applied. The MCC module 1000 to which the present invention is applied is composed of three components. Before describing the MCC module 1000, the MCC module 1000 according to the present invention is applied to the MCC module 1000, And the MCC unit 1000 will be described on the basis of the above-mentioned premise. [0158] As shown in FIG. One or more of the above-described sections B may be formed on the cubicle. However, for convenience of explanation, the division B in the cubic C of the circuit breaker described below is formed in total of 21 (B1 to B21) As an example. As shown in FIG. 1, the 21 compartments B1 to B21 are arranged in three rows from the left, and the first to seventh compartments B1 to B7, the eighth to the 14th compartments B8 to B14, and fifteenth to twenty-first sections B15 to B21.

As will be understood by those skilled in the art, a wiring breaker may be provided in all the compartments B in the cubic C, but if the required number of wiring breakers is smaller than the number of the compartments B, , A space in which an empty space, that is, a space in which a circuit breaker is not installed, may occur. It is not necessary to install the components of the MCC module 1000 of the present invention in the empty section (B), so this is disclosed before the description of the present invention. Hereinafter, a breaker for wiring is provided in the second to fifth compartments (B2 to B5), the ninth to thirteenth compartments (B9 to B13), and the sixteenth to nineteenth compartments (B16 to B19) The paper compartment B is an empty space as an example.

The MCC module 1000 of the present invention includes at least one control module 100 for directly handling the wiring breaker in the section B and a wireless communication module 100 for allowing the manager to operate the at least one control module 100 wirelessly. A controller 300 and a communication repeater 200 for relaying mutual communication between the control module 100 and the radio controller 300.

As described above, the division B in which the wiring breaker is installed in the cubicle C is divided into the second to fifth sections B2 to B5, the ninth to thirteenth sections B9 to B13, The control module 100 can also be constituted by thirteen control modules 101 to 113 so that the communication repeater 200 can be installed in the 13 control modules 100. [ (101 to 113). Of course, the number of the control modules 100 is thirteen, which may be different depending on the number of the circuit breakers installed in the cubicle C.

It is preferable that the communication repeater 200 can be installed as close as possible to the cubicle C provided with the wiring breaker because the control module 100 and the communication repeater 200 are connected by wire , To prevent unnecessary wiring exposure. In this regard, the most optimized installation location of the communication repeater 200 is to be installed in one of the remaining compartments in the cubicle C, because the cubicle C is generally constructed as shown in FIG. 1 This is because the communication repeater 200 can be installed while saving the space without exposing the separate wiring to the outside. Hereinafter, the communication repeater 200 is installed in an empty eighth division B8 among the division B, and the 13 control modules 101 to 113 are connected to each other through a wired connection as shown in FIG. Dotted line) will be described as an example. Of course, the installation location of the communication repeater 200 can be flexibly determined according to the needs of the administrator. For example, when the cubicle C provides a separate space on the side or top, The communication repeater 200 may be installed outside the communication repeater C as shown in FIG.

The communication relay 200 is connected to a central control room R where the central control unit M is installed. The central control room R is generally connected to a cubicle C And therefore, it is wired to the communication repeater 200 without being connected wirelessly.

Here, the communication protocol between the above-mentioned 13 control modules 101 to 113 and the communication repeater 200 connected by wire, and between the communication repeater 200 and the central control room R include 485 communication (RS-485) or IEEE 802.3 It is preferable to use the LAN protocol.

As described above, it is preferable that the communication repeater 200 and the radio controller 300 are connected wirelessly, and the means of the radio communication uses an authorized AM frequency. This is because the communication repeater 200 has a radius of 50 m So that the administrator can operate the control module 100 stably through the wireless controller 300. [ It is preferable that the wireless communication uses the FSK scheme of AM.

2 is a structural diagram showing a connection structure between the control module 100 and a partition B in which the control module 100 is installed and a wiring breaker MCCB in the partition B. As shown in FIG. Hereinafter, the connection between the MCCB and the control module 100 will be described with reference to FIG. 2. In the following description, the control modules 100 to 113 common to all the control modules 101 to 113 .

The control module 100 is installed in a partition B in which a wiring breaker MCCB is installed as described above and the MCCB is a potentiometric transformer (PT) A current transformer (CT), and a circuit breaker (CB). The control module 100 includes a controller 120 for directly controlling the control module 100 by performing a calculation function of the control module 100 as a processing device, A memory 130 and respective terminals 140 and 150 for connecting the control module 100 and the meter transformer PT and the breaker CB, the current transformer CT, and the communication repeater 200, And a module display 180 that visually communicates the status of the control module 100 to the administrator and provides an interface that allows the administrator to directly manipulate the control module 100 do.

Here, the module display 180 is installed to be exposed outside the door of the partition B as shown in FIG. 2. The configuration of the module display 180 will be described later.

3 is a block diagram of the controller 120 of the control module 100. As shown in FIG. Hereinafter, functions and operations of the control module 100 will be described with reference to FIGS. 2 and 3. FIG.

3, the controller 120 is divided into a processing unit 121, a controller power source 122, a signal converting unit 123, a CB state input unit 124, and a CB control output unit 125 , The processing unit 121 may include an AO control function 121a, a DI / DO control unit 121a, and an A / D control unit 121a to process signals transmitted from the remaining components 122 to 125 and to transmit the resultant values to the components 122 to 125, In order to achieve the above functions 121a to 121d to have the DO control function 121b, the control auto tuning function 121c and the communication relay function 121d, an additional electronic circuit is added to the processing apparatus 121 Alternatively, a program such as an operating system may be installed in the processing unit 121 and used.

The processing unit 121 may be a general central processing unit (CPU) or a microprocessor (MPU) or the like. The microprocessor (MPU) is preferably used.

The functions of the processing unit 121 are as described above and the controller power supply 122 is controlled by the control module 100. [ And determines whether the control module 100 operates. The controller power supply 122 may be turned ON / OFF by operating the manager direct module display 180 or may be turned ON / OFF using the central control unit M in the radio controller 300 or the central control room R. [ An ON / OFF signal transmitted from the wireless controller 300 or the central control room R may be input through the repeater terminal 170 via the communication repeater 200. [ The signal conversion unit 123 receives the PT and CT signals from the PT terminal 140 or the CT terminal 160 of the control module 100 and converts the PT and CT signals into digital signals and transmits the digital signals to the processing unit 121 .

The CB state input unit 124 connected to the breaker CB receives the digital signal related to the current state of the breaker B from the breaker CB and transmits the digital signal to the processing unit 121, The shutdown controller 120 may be operated by the shutdown controller 120 or may be operated manually by the administrator using the wireless controller 300 or the central control unit M of the central control room R, To the control module (121) to determine the operating mode of the control module (100). The CB control output unit 115 is connected to the circuit breaker B and controls the circuit breaker CB to determine whether the circuit breaker CB is to be cut off.

First, the AO control function 121a analyzes the analog data of the current and the voltage received from the signal conversion unit 123, and controls the DI / DO control The function 121b transmits the signal and state of the circuit breaker B delivered by the CB state input unit 124 to the module display 180 of the control module 100 and the radio controller 300 and the central control room R If the operation mode of the control module 100 is automatic, the state of the circuit breaker CB is monitored in real time. If a problem occurs in the circuit breaker CB, The processing unit 121 automatically transmits a signal to the CB control output unit 125 to control the operation of the circuit breaker CB when the terminal 160 transmits signals other than the normal category to the controller 120 .

The control auto tuning function 121c serves to correct control signal values required for the AO control function 121a and the DI / DO control function 121b, and the communication relay function 121d controls the relay terminal Or the signal transmitted from the central control room R or the control module 100 receives signals from the wireless controller 300 or the center If there is a signal to be transmitted to the control room R, converts the data value to be transmitted into a predetermined communication protocol and transmits it through the relay terminal 170.

2 and 3, since the controller 120 is connected to the memory 130, when the controller 120 needs to temporarily or permanently store a program or a signal value in an arithmetic processing process , The memory 130 may be used.

4 is a structural diagram showing a module display 180 of the control module 100. As shown in FIG. Hereinafter, the configuration and functions of the module display 180 will be described with reference to FIG.

As described above, the module display 180 is installed so that it can be exposed to the outside so that it can be checked and manipulated by an administrator, and Fig. 4 shows this revealed module display 180. Fig. The module display 180 includes a power supply unit 181 including a power switch 181a capable of determining whether the corresponding control module 100 is operated, an operation position determination unit 182 for determining an operation position, A status lamp unit 183 for providing status information of the module 100 and a manual operation unit 184 for allowing the corresponding control module 100 to be manually operated.

More specifically, the power source unit 181 is as described above, and the operation position determination unit 182 determines where the control of the control module 100 is to be allocated.

As described above, the main body capable of operating the control module 100 can be operated by the control module 100 itself or by the administrator through the wireless controller 300, The automatic switch 182a can be controlled by the central control means M of the central control room R so that the control module 100 can be controlled by the central control means M. [ And the automatic lamp 182d is turned on when the control module 100 operates in the central control room R. [

The manual switch 182b is a switch for determining that the corresponding control module 100 can directly operate by the manager using the module display 180. The manual lamp 182e is a switch for the control module 100, And is turned on when it is operated by the display 180.

And the field switch 182c is a switch for determining that the control module 100 can operate wirelessly by the wireless controller 300 and the field lamp 182c is a switch for allowing the control module 100 to control the wireless controller 300).

Here, since only one operation control right of the control module 100 can be determined, when the corresponding switches 182a to 182c are pressed, the operation right is changed, and accordingly, the lamp to be turned on also changes.

The status lamp unit 183 indicates the status of the control module 100 and is composed of three lamps 183a to 183c. The power supply lamp 183a is a lamp indicating whether the control module 100 is operated and the two communication status lamps 183b and 183c are lamps indicating a communication status of the control module 100. [ Here, the Rx lamp 183b indicates the reception state during the communication state, and the Tx lamp 183c indicates the transmission state during the communication state.

The manual operation portion 184 is a portion for operating the control module 100 when the corresponding control module 100 is operated in a manual mode, that is, when the module is directly operated using the module display 180, The operation switches 184a are connected to the switches 184a to 184c and the three lamps 184d to 184f corresponding to the switches 184a to 184c. And the stop switch 184b is an OFF switch for blocking the wiring breaker for the control module 100. The abnormal switch 184c is a switch for turning off the wiring breaker Emergency switch which automatically lights up the lamp, removes the cause, and returns to normal when the switch is pressed. The lamps 184d to 184f are lamps for informing the state of the wiring breaker of the control module 100. The operation lamp 184d is turned on when the wiring breaker is in the ON state, Is turned on when the wiring breaker is OFF, and the abnormal lamp 184f is turned ON when an abnormality has occurred in the wiring breaker.

FIG. 5 is an interface structure diagram of the radio controller 300. FIG. Hereinafter, the configuration and functions of the radio controller 300 will be described with reference to FIG.

As described above, the wireless controller 300 is manufactured in the form of a rectangular remote controller so that the manager can conveniently hold and manipulate the remote controller 300 with one hand. The following description is made on the configuration of the switch of the wireless controller 300 This is a description of the function. Since the wireless controller 300 performs wireless communication with the communication repeater 200 and transmits / receives data using the conventional method, it will not be described separately hereafter.

First, the wireless controller 300 will be described with reference to the components of the wireless controller 300, so that the administrator can confirm the number of the control module 100 currently selected by the wireless controller 300 An input switch unit 320 for allowing the radio controller 300 to select a control module 100 to be operated by the radio controller 300, An external status lamp unit 330, and an operation unit 340 for directly operating the corresponding control module 100.

The number display 310 is as described above. When the plurality of control modules 100 are installed in one switchboard, the input switch 320 selects one of them. In addition to a number switch for inputting a number, a CL switch 321 for erasing the inputted number, an MD switch 322 for allowing the user to view the last use selection number ), And an increase / decrease switch 323 for selecting a front number or a back number from the selected number, and a number of the selected control module 100 is determined to operate the selected control module 100 And a selection switch 324, which is a switch for determining whether or not to make a decision.

The external status lamp unit 330 is a lamp that is turned on when the currently selected control module 100 is operated in a place other than the wireless controller 300 and the central lamp 331 is turned on when the control module 100 The manual lamp 332 is turned on when the operation right is in the central control room R and the manual lamp 332 is lit when the operation right of the control module 100 is in the module display 180 operated in the field.

The operation unit 340 includes a switch and a lamp for allowing the radio controller 300 to operate the selected control module 100. The field selection button 341 is used for operating the selected control module 100 And the field lamp 341a is turned on when the wireless controller 300 has a right to operate the control module 100. The field lamp 341a is turned on when the wireless controller 300 operates.

The operation, stop, and error switches 342, 343, and 344 in the operation unit 340 have the same functions as the operation, stop, and error switches 184a, 184b, and 184c of the module display, The operation, stop, and abnormal lamps 342a, 343a, and 344a of the module display unit 340 are the same as the operation, stop, and abnormal lamps 184d, 184e, and 184f of the module display.

Here, description will be given of the operating rights priorities of the three components capable of operating the above-described control module 100. Since the judgment on the spot is most important, the priority is given to the module display 180, It is preferable to set the wireless controller 300 and the next to the central control room R. In order to achieve this, when the module display 180 has the operating right, it is preferable that the remaining two elements do not change the operating right , It is preferable that the radio controller 300 can bring the operation right only when the operating right is in the central control room R. [

100: Control module. 120: Controller. 130: memory. 140: PT terminal.
150: CB terminal. 160: CT terminal. 170: Repeater terminal.
180: Module display. 181: Power supply. 182: Operation position determining section.
183: Status lamp section. 184: Manual controls. 200: communication repeater.
300: Wireless controller. 310: Number display. 320: Input switch section.
330: External status lamp section. 340: Operation part.

Claims (9)

An MCC module capable of operating a circuit breaker having one or more breakers,
At least one control module capable of opening and closing the breaker and detecting an abnormality of the breaker; A communication repeater which is connected to the control module in a wired manner and is also connected to the central control means of the central control room by a wire; And a wireless controller connected to the communication repeater to wirelessly select one of the one or more control modules,
Wherein the one or more control modules are respectively a controller for checking and operating circuit breaker status and communicating with a communication repeater; A memory which is a storage device connected to the controller; One or more wired input terminals for connecting the controller to the circuit breaker and the communication repeater by wire; And a module display for providing status information of the control module and for manipulating the control module,
A PT terminal for establishing a wire connection with the wire transformer; A CB terminal for wired connection with the breaker; A CT terminal for establishing a wired connection with the current transformer; And a repeater terminal connected to the communication repeater,
Wherein the controller comprises: a processing device for performing operations and operations; A controller power source for determining whether the control module connected to the controller operates; A signal converter for converting an externally input signal; A CB state input unit for determining an operation state of a control module connected to the controller; And a CB control output unit for determining opening and closing of a circuit breaker connected to the controller,
The processing apparatus includes an AO control function for analyzing analog data of a current and a voltage received from the signal converting unit; The CB state input unit transmits the signal and state of the circuit breaker to the control module, the module display, the radio controller, and the central control room, monitors the state of the circuit breaker in real time, A DI / DO control function for automatically causing the processing unit to transmit a signal to the CB control output unit when the terminal transmits signals other than the normal category to the controller so as to control the operation of the circuit breaker; A control auto-tuning function for correcting the AO control function and the control signal value necessary for the DI / DO control function; A communication relay function for converting a data value of a signal input from the relay terminal into a predetermined protocol can be implemented,
The memory unit is provided with a program for implementing the AO control function, the DI / DO control function, the control auto tuning function, and the communication relay function,
(RS-485) or IEEE 802.3 LAN protocol between the communication repeater and one or more control modules, and between the communication repeater and the central control unit of the central control room, Characterized in that the wireless communication means between the wireless controllers uses the AM frequency and the wireless communication method uses either the ASK or FSK method of AM. delete delete delete The MCC module according to claim 1, wherein the processing device is one of an MPU (microprocessor) or a CPU (central processing unit). The display device according to claim 1, wherein the module display comprises: a power supply unit for determining whether the corresponding control module is operated; An operation position determination section for determining an operation right of the control module; A status lamp unit for providing the status of the corresponding control module to an administrator; And a manual operation unit for directly operating the corresponding control module. 2. The apparatus of claim 1, wherein the radio controller comprises: an input switch unit for selecting one of the one or more control modules; A number display for allowing the user to inform the user of the control module selected by the wireless controller; An external status lamp unit for allowing the wireless controller to inform the operating rights of the selected control module; And an operation unit for allowing the radio controller to operate the selected control module. The method of claim 1, wherein the wired communication method between the communication repeater and one or more control modules and the central control means of the central control room uses 485 communication (RS-485) or IEEE 802.3 LAN protocol MCC class with wireless control. The MCC module according to claim 1, wherein the wireless communication means between the communication repeater and the wireless controller uses an AM frequency, and the wireless communication method uses an ASK or FSK method of AM.

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