JP4267627B2 - Electrical circuit design support device and directional relay device test support device - Google Patents

Description

  The present invention relates to an electric circuit design support device that supports creation of an electric circuit diagram including, for example, a directional relay device, and a directional relay device test support device that supports a test operation of a protective relay device.

  As the operation check device of the directional protection relay device as a conventional electric circuit design support device, using the characteristic data of the power system to be protected and the characteristic data of the directional protection relay device arranged in each facility, There is one that confirms the validity of the set value of the directional protection relay device from the failure calculation performed separately (see, for example, Patent Document 1).

JP-A-56-074014 (pages 4 to 8 and FIG. 1)

  In the conventional operation confirmation device for the directional protection relay device, all the characteristic data of the power system and the operation characteristic data of the directional protection relay device used for the confirmation work are provided in a single line diagram. However, in the case of a directional protection relay device, the protection direction is finally determined by the method of connection to the input terminal of the directional protection relay device, but it is integrated into a single line diagram like a conventional operation check device. In other devices, it is not considered to check the connection state of the direction protection relay device, so it has been confirmed that the connection state on the drawing actually connected protects the direction intended by the designer. There wasn't. Moreover, although there is a set value list as management information of the directional protection relay device, the description of the protection direction of the target directional protection relay device depends on the connection state of the input electric circuit, but the electric circuit The relationship with the figure is not ensured and is managed independently of the electric circuit diagram.

  For this reason, even if the operator confirms that the protection direction is intended in the set value list, the protection direction is protected in the opposite direction to the intended direction in the connection state on the actual drawing. There was also a situation. Furthermore, when testing the directional protection relay device, the confirmation of the protection direction is confirmed by the presence or absence of the operation of the directional protection relay device depending on the state of the simulated input. It has been difficult to visually confirm the input value and the operation of the directional protection relay device on the electric circuit diagram in which the directional protection relay device is incorporated.

  The present invention has been made to solve the above-described problems, and the connection and operation of the directional relay device can be visually confirmed on the electric circuit diagram in which the directional relay device is incorporated. Visualize the setting value of the directional relay device and the operation of the directional relay device in correspondence with the electric circuit design support device and the electric circuit diagram that can create a management list that associates the protection direction of the relay device with the electric circuit diagram It is an object to obtain a directional relay device test support device that can be confirmed as follows.

  In the electrical circuit design support apparatus according to the present invention, an electrical circuit diagram represented by a double-line diagram is displayed on a display device based on electronic data created by electrical circuit diagram creation software, and the electrical circuit diagram is inputted. Electric circuit display means including a directional relay device that operates when the direction of the amount of electricity to be transmitted is a predetermined direction, target device selection means for selecting the directional relay device on the electric circuit diagram, and the selected directional relay Connection confirmation means for confirming that all the connection terminals of the device are connected on the electric circuit diagram, setting value setting means for setting the set value of the selected directional relay device, and selected directional relay Directional relay device simulation device for simulating the operation of the device, simulated input value setting means for setting a simulated input value to be input to the directional relay device simulation device, and electronic data indicating the set value, the simulated input value, and a predetermined direction In Those having a set value such as addition and display means for displaying on the display device in correspondence with the electric circuit diagram as well as pressure.

  Further, in the directional relay device test support device according to the present invention, an electric circuit diagram represented by a double-line diagram based on electronic data in which a set value, a simulated input value, and a predetermined direction of the directional relay device are added. Is displayed on a display device, and the electric circuit diagram includes a directional relay device that operates when the direction of the input electric quantity is a predetermined direction. A test target device selecting means to be selected on the circuit diagram, and a test apparatus for testing by applying a predetermined electric quantity to the directional relay apparatus of the actual machine corresponding to the selected directional relay apparatus are provided.

  The electrical circuit design support apparatus of the present invention displays an electrical circuit diagram represented by a double-line diagram on a display device based on electronic data created by electrical circuit diagram creation software, and the electrical circuit diagram is input to the electrical circuit diagram. Electrical circuit display means including a directional relay device that operates when the direction of the quantity is a predetermined direction, target device selection means for selecting the directional relay device on the electrical circuit diagram, and the selected directional relay device Connection confirmation means for confirming that all the connection terminals are connected on the electric circuit diagram, setting value setting means for setting the set value of the selected directional relay device, and for the selected directional relay device Directional relay simulator for simulating operation, simulated input value setting means for setting simulated input values to be input to the directional relay simulator, and setting values, simulated input values, and predetermined directions are added to electronic data Then In addition, it is equipped with a setting value display and display means to display on the display device corresponding to the electric circuit diagram, so that the connection state and operation of the line to the directional relay device can be visually confirmed on the screen on which the electric circuit diagram is displayed. This makes it easy to create an electric circuit diagram, and prevents connection errors.

  Further, the directional relay device test support device according to the present invention provides an electric circuit diagram represented by a double-line diagram based on electronic data in which a set value, a simulated input value, and a predetermined direction of the directional relay device are added. Electrical circuit display means for display, which is displayed on a display device, and includes a directional relay device that operates when the direction of input electric quantity is a predetermined direction. Since there is a test device for selecting a test target device to be selected on the figure and a test device for giving a predetermined electrical quantity to the actual directional relay device corresponding to the selected directional relay device, an electric circuit diagram is provided. It is possible to visually set the electrical quantity to be given to the directional relay device for the test and to confirm the operation on the screen on which is displayed, thus facilitating the test and preventing a test error. .

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIGS. FIG. 1 is a configuration diagram of an electric circuit design support device, FIG. 2 is a flowchart showing an operation, FIGS. 3 and 4 are explanatory diagrams showing a screen of a display, and FIG. 5 is an explanatory diagram showing a current direction of an instrument current transformer. FIG. 6 is an explanatory diagram showing a display screen. In FIG. 1, the electric circuit design support device 1 includes an electric circuit confirmation device 30, a display 40 using liquid crystal as a display device, a simulated input value setting means 41, and a directional protection relay device simulation device 50. The electric circuit confirmation device 30 includes an electric circuit diagram display means 31, a target device selection means 32, a terminal connection confirmation means 33, a setting value setting means 34, a setting value addition and display means 37, and the like. The directional protection relay device simulation device 50 includes an operation algorithm storage unit 51, an operation algorithm reading unit 52, and an operation presence / absence determination unit 55. The electric circuit design support device 1 is realized by a computer. The operation algorithm storage means 51 receives and stores operation algorithm data of the directional protection relay device 16 (described later) via an input / output device (not shown).

  Next, the operation will be described with reference to the flowchart of FIG. An electric circuit diagram 10 as shown in FIG. 3 in which a directional protection relay device 16 as a target directional relay device is incorporated exists as electronic data of CAD (computer-aided design). The figure display means 31 displays the electric circuit diagram 10 of a double-line diagram (in this case, a three-line diagram) on the display 40 using CAD application software (S11). At the same time, a set value display window 21, a voltage display window 22, a current display window 23, a current direction display window 24, a protection direction display window 25, and an operation non-operation display window 26 are displayed. For the time being, the display in each window is blank. In addition, an operation button 27, a confirmation button 28, and an NG (impossible) button 29 for confirming the operation characteristics of the directional protection relay device 16 are displayed at the top of the screen (see FIG. 4).

  In the electric circuit diagram 10 described above, the directional protection relay device 16 (for example, the power direction relay device) includes the voltage and current of the bus 11 from the instrument transformer 14 and the instrument current transformer 15 connected to the bus 11. Is input via the input terminal 161. One of the directional protection relay devices 16 (a plurality of which are actually provided, but one of them is shown in the figure) displayed in FIG. 3 by the pointer mouse as the target device selection means 32 Is selected (step S12), and the model name AA-BB of the selected directional protection relay device 16 is compared with the model name of the directional protection relay device stored in the operation algorithm storage means 51 (step S12). S13).

  If the type name AA-BB of the directional protection relay device 16 selected by the pointer mouse in step S13 does not match any of the directional protection relay device type names stored in the operation algorithm storage means 51, A message indicating that the selection is inappropriate is displayed on the display 40 (S14), and the process returns to step S12. If the two format names match, a message indicating that they match is displayed on the display 40, and the confirmation button 28 is operated (step S15).

  When the selection of one directional protection relay device 16 is completed and the confirm button 28 is operated, the terminal connection confirmation means 33 is stored in the operation algorithm storage means 51 via the operation algorithm reading means 52. The number of the voltage and current signal input terminal 161 of the polarity protection relay device 16 is read (step S16), and the input lines are connected to all the terminals of the direction protection relay device 16 displayed on the display 40. Is connected on the electric circuit diagram (S17).

  In S17, if all the voltage and current signal input terminals 161 stored in the operation algorithm storage means 51 are not connected to the selected directional protection relay device 16, the connection is incomplete. A message is displayed on the display 40 indicating that the subsequent operation is impossible (S18), and the process returns to step S11. In this case, after the operator has connected all the input terminals on the electric circuit diagram, the electric circuit diagram is displayed again, and the operations after step S12 are performed.

  In step S17, when the input terminal 161 of the directional protection relay device 16 is completely connected for voltage and current input, it is displayed on the screen shown in FIG. 4 by the set value setting means 34 (FIG. 1). The set values E [Ω] and α [degrees] of the directional protection relay device 16 being input are input, and the simulated voltage G [kV] and the simulated current J [A] are input by the simulated input value setting means 41. ] (Hereinafter, the simulation voltage G and current J are collectively referred to as simulation input values G and J) (S19). These set values, simulation voltage, simulation current, and current direction are added to the set value display window 21, voltage display window 22, current display window 23, and current direction display window 24 by the addition and display means 37. Is displayed.

  For the simulation current J, as shown in the current display window 23 of FIG. 4, the current direction K, which is a predetermined direction of the electric quantity that is input and the protection direction, and the phase difference (delay) of the current with respect to the voltage. 90 ° to 0 ° to 90 °). The direction of the secondary current of the current transformer for the instrument corresponding to the direction of the simulation current J is the primary current direction J1 (protection direction arrow) shown in FIG. 5 (a) or FIG. 5 (b). M) and the relationship between the secondary current direction J2.

  In step S19, when the setting of the simulation input values G and J of the directional protection relay device 16 is completed, the operation button 27 displayed on the upper left of the screen shown in FIG. 4 is operated (clicked with a pointer mouse) ( Step S20). When the action button 27 is clicked, the action algorithm reading means 52 reads the action calculation formula of the directionality protection relay device 16 from the action algorithm storage means 51 (step S21). The transformer existence ratio (transformation ratio C1, transformation ratio D1) already inputted by the CAD application with respect to the simulation input values G and J inputted by the operator on the screen shown in FIG. ) Is converted into the voltage and current value on the secondary side of the transformer, and is substituted into the operation formula of the directional protection relay device 16 to determine whether or not the directional protection relay device 16 operates (operation presence / absence) ) And the determination result is displayed on the operation non-operation display window 26 (FIG. 4) of the display 40 (S22). At the same time, the set values E [Ω], α [degrees], the simulated input values G and J, and the current direction K are displayed on the display windows 21 to 24 (step S23). The operator sets the simulation input values G and J corresponding to the assumed voltage and current at the time of the accident on the screen shown in FIG. 4, and the direction protection relay device according to the voltage and current state intended by the operator. It is confirmed whether there is no problem in the result of the presence / absence of operation 16 (S24).

  In step S24, when the operator confirms that the protection characteristic in the direction intended by the operator cannot be obtained, a message indicating that the operator is inappropriate is displayed (step S25). In this case, the operator confirms the inappropriate message and operates (clicks) the NG button 29 to clear the set value and the simulated input value of the directional protection relay device 16 and review the set value and connection (step S26). , The screen returns to the setting screen for setting values and simulation input values in S19. If there is no problem in step S24, the confirm button 28 is operated (S27). At this time, the determined current direction K is displayed in the protection direction display window 25 on the screen as a protection direction M, which is a predetermined direction of current as an input electric quantity. After operating the confirmation button 28, the set values E [Ω] and α [degrees] of the directional protection relay device 16 and the protection direction M which is the current direction K input on the screen shown in FIG. 4 are displayed on the screen. The information is displayed on the electric circuit diagram 10 and added to the electronic data (step S28), and the process ends. Although not shown in the flowchart of FIG. 2, when all the directional protection relay devices have been checked for operation, all operations are completed.

  As described above, according to this embodiment, the wiring state under design is reflected on the screen of the electric circuit diagram 10 based on the electronic data created by the CAD application for electric circuit design displayed on the display 40. The connection state of the line to the input terminal of the directional protection relay device 16, which is a directional relay device, can be confirmed, and the voltage value and current value at the time of an assumed accident with respect to the operation algorithm of the directional protection relay device The simulation voltage and current, the direction of the simulation current, and the phase difference with respect to the simulation voltage can be input to visually confirm that the directional protection relay device operates as expected. That is, the connection state and operation of the line to the directional relay device can be visually confirmed on the screen on which the electrical circuit diagram is displayed, and the electrical circuit diagram can be easily created.

  In addition, since functions are added without losing the functions possessed by the conventional CAD application, activation and operation of another device or direction protection relay is performed to confirm the operation of the direction protection relay device. Since it is not necessary to refer to materials and data describing the operation algorithm of the apparatus, workability is improved. Furthermore, as a result of confirmation, when the directional protection relay device operates in the protection direction not intended by the designer, the connection of the electric circuit diagram is made using the function that the CAD application for creating the electric circuit diagram has had so far. Since it can be changed on the spot, omission of correction can be prevented.

Embodiment 2. FIG.
7 to 9 show the second embodiment. FIG. 7 is a configuration diagram of the electric circuit design support apparatus, FIG. 8 is a flowchart showing the operation, and FIG. 9 is an explanatory diagram showing a display screen. In FIG. 7, the management list creation means 60 has a target device selection stage 61, setting value transfer means 62, protection direction notation means 63, and notation method correction means 65. The management list creating means 60 sets the set values E [Ω] and α [degrees] of the directional protection relay device 16 and the current direction (protection direction) K of the simulation current J input on the screen shown in FIG. The management list is created by using the management list such as the model name AA-BB of the directional protection relay device 16 and the transformer transformation ratios C1 and D1 input by the CAD application. Note that the function of the management list creating means 60 is provided in a conventional CAD application. Since other configurations are the same as those of the first embodiment shown in FIG. 1, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

  Next, the operation will be described with reference to the flowchart of FIG. The electrical circuit diagram in a state where the operator has completed the operation characteristic confirmation of all the directional protection relay devices and the protection direction has been determined is displayed on the display 40 as shown in FIG. 9 (S21). The target device selection stage 61 selects, for example, a predetermined directional protection relay device 16 with a pointer mouse (not shown) (S22). The set value etc. transfer means 62 generates the format of the directional protection relay device 16 from the electronic data displayed on the electric circuit diagram 10 and stored as an attribute on the CAD application for the selected directional protection relay device 16. The names AA-BB, the set values E [Ω], α [degrees], and the transformer transformation ratios C1 and D1 are extracted and transferred to the form F of the set value list L shown in FIG. 9 (S23).

  Next, as shown in FIG. 9, the protection direction M is indicated by an arrow at an appropriate location in the electrical circuit diagram 10, and therefore the direction is not known even if it is directly transferred to the form F of the set value list L. Don't be. Therefore, the protection direction notation means 63 is a transformer which is an electrical device that is first displayed along the circuit on the electrical circuit diagram 10 in the direction indicated by the protection direction M from the starting position of the protection direction M on the electrical circuit diagram 10. A character “direction” is attached to the device 12 and “transformer 12 direction” is displayed on the form F (S24). If the operator determines that the displayed representation of the protection direction of the directional protection relay device 16 is appropriate (S25), the operator operates the confirmation button (step S26).

  If it is determined in step S25 that the protection direction is inappropriate, the NG button 29 (FIG. 4) is operated (S27). For example, the expression “transformer 12 direction” in step S24 is appropriate as an expression of the protection direction. For example, when the expression “current transformer direction” is made, the current transformer is not directly protected. So it is an inappropriate expression. Then, when the NG button 29 is operated, the notation method correcting means 65 is further pointed by the arrow K beyond the electric device (not shown, for example, an instrument current transformer) whose expression is determined to be inappropriate on the electric circuit diagram 10. It is determined whether or not there is an electrical device (on the right side in FIG. 9) (step S28). If there is an electrical device first, the name of the electrical device and the “direction” character are displayed in combination (S29), Returning to step S25, it is determined whether the expression of the protection direction is appropriate.

  In step S28, if there is no electrical device ahead of the arrow direction K from the transformer 12, a message is displayed indicating that there is no electrical device ahead of the protection direction (step S30), and the operator manually changes the protection direction. An expression is entered (S31). In this case, it is out of the range of this electrical circuit diagram 10, but since it is generally connected to electrical equipment of other electrical circuits, the operator manually examines the related diagrams etc. and expresses the protection direction manually. Fill in. Then, when all the directional protection relay devices 16 are described in the form F, the process ends (step S32).

  According to the present embodiment, the directional protection relay from the protection direction which is a predetermined direction of the directional protection relay device 16 which is the directional relay device of FIG. 10 displayed on the display 40 shown in FIG. It is possible to create a management list of devices, and the management list can be created on the screen on which the electric circuit diagram is displayed, so that the creation work is easy and the actual direction protection relay device can be created. It is possible to prevent inconsistency between the state and the description of the management list.

Embodiment 3 FIG.
10 to 12 show a third embodiment of the present invention, FIG. 10 is a configuration diagram of a directional relay device test support device, FIG. 11 is a flowchart showing the operation, and FIG. 12 is a display screen. It is explanatory drawing shown. In FIG. 10, an electric circuit display device 70 includes an electric circuit diagram display unit 71 as a test electric circuit diagram display unit, a target device selection unit 72 as a test target device selection unit, an actual voltage actual current reading unit 73, and a test setting. A setting value display means 74 is provided as a value display means. In this embodiment, an electric circuit diagram 10 as shown in FIG. 12 is displayed on the display 40 by combining the electric circuit display device 70, the test device 81, and the actual directional protection relay device 85. The directional protection relay device 85 is visibly tested. Since other configurations are the same as those of the first embodiment shown in FIG. 1, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

  Next, the operation will be described with reference to the flowchart of FIG. First, the electrical circuit diagram 10 is displayed on the display 40 as shown in FIG. 12 by the electrical circuit diagram display means 71 (S51). This displayed electrical circuit diagram 10 is a diagram in which the connection and operation of the directional protection relay device 16 have been confirmed on the electrical circuit diagram by the electrical circuit design support device 1 in the first embodiment. At the same time, a set value display window 21, a voltage display window 22, a current display window 23, a current direction display window 24, a protection direction display window 25, and an operation non-operation display window 26 are displayed. It is displayed. In the other windows, the numerical value of the test is displayed, but it is blank at this time. An operation button 27, a confirmation button 28, and an NG button 29 for confirming the operation characteristics of the directional protection relay device 16 are displayed at the top of the screen. Although not shown, there are a plurality of directional protection relay devices 16.

  The directional protection relay device 16 of the electric circuit diagram 10 displayed on the display 40 is selected with the pointer mouse as the target device selection means 72 (S52). It is determined whether or not the model name AA-BB of the selected directional protection relay device 16 and the model name recorded in the directional protection relay device 85 of the actual machine connected for testing match in FIG. Judgment is made (step S53), and if they do not match, an inappropriate selection message is displayed (step S54), and the process returns to step S52.

  If they match, a message to that effect is displayed on the display 40 to notify that the preparation for starting the test is complete (step S55). In addition, since it has been confirmed that the input lines are connected to all the terminals of the input terminal 161 of the directional protection relay device 16 on the electric circuit diagram 10, confirmation at this stage is unnecessary. The set values E [Ω] and α [degrees] of the directional protection relay device 16 displayed in the set value display window 21 are input to the test device 81 and the test voltage G [kV] and the test current are input. J [A] (hereinafter referred to as test input values G and J together with the test voltage G and current J) is input to the test apparatus 81 (S56). As shown in the current display window 23 in FIG. 12, the test current J is designated by the current direction K and the phase difference with respect to the voltage (delay 90 ° to 0 ° to advance 90 °).

  When the input of the test input values G and J of the direction protection relay device 85 in step S56 is completed, the operation button 27 displayed on the upper left of the screen is operated, and the direction protection relay device is operated by the test device 81. A voltage and current corresponding to the test input values G and J are given to 85 (step S57). Then, whether or not the directional protection relay device 85 is operated is determined and the result is displayed on the operation non-operation display window 26, so that the operator can perform the directional protection relay according to the intended voltage and current state. It is checked whether the result of the operation of the electric device 85 is satisfactory (S58). Note that the actual voltage actual current reading means 71 reads the voltage and current actually flowing to the directional protection relay device 85 during the test, and the setting display means 74 is provided in the voltage display window 22 and the current display window 23 provided in the display 40. The test voltage and current set in advance are displayed in the lower row.

  If the operator confirms that the protection characteristic in the direction intended by the operator cannot be obtained in step S58, an error message indicating that it is not possible is displayed (step S59). In this case, the operator confirms the error message and operates the NG button 29 to clear the set value and the test input value of the directional protection relay device 85, and review the connection and the set value (step S60). ), The screen returns to the input screen for the set value of S56 and the input value for test. If there is no problem in step S58, the confirm button 28 is operated, and the process returns to step S52 to test the next directional protection relay device 85. If the test is completed for all the directional protection relay devices 85 (step S61), the process ends.

  According to this embodiment, it becomes possible to visually confirm the test state of the directional protection relay device 85 on the electric circuit diagram 10 displayed on the screen of the display 40 shown in FIG. Confirmation errors can be prevented. In addition, since the electric circuit diagram 10 is shared in the form of electronic data of the CAD application at the time of design and at the time of the test, when it is necessary to change the setting value of the directional protection relay device 85 as a result of the test. Since the correction of the set value can be directly reflected in the electric circuit diagram 10, it is possible to prevent the correction contents of the set value from being reflected in the electric circuit diagram 10. Further, the actual voltage actual current reading means 73 displays the voltage, current, and current direction actually flowing through the directional protection relay device 85 during the test in the windows 21 to 24 provided in the display 40. If there is a difference from the input value set due to a failure of the input circuit of the protective relay device 85, it can be easily found. In other words, since it is possible to visually set the electrical quantity to be given to the directional relay device for the test and confirm the operation on the screen on which the electric circuit diagram is displayed, the test becomes easy. Test errors can be prevented.

  In each of the above embodiments, the example of the directional protection relay device 16 is shown as the directional relay device. However, the present invention is not limited to this, and other directional relay devices used for purposes other than protection. Even if there is, there is a similar effect.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the electric circuit design assistance apparatus of Embodiment 1 for implementing this invention. It is a flowchart which shows operation | movement of the electric circuit design support apparatus of FIG. It is explanatory drawing which shows the screen of a display. It is explanatory drawing which shows the screen of a display. It is explanatory drawing which shows the electric current direction of the current transformer for meters. It is explanatory drawing which shows the screen of a display. It is a block diagram of the electric circuit design support apparatus which shows Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the electric circuit design support apparatus of FIG. It is explanatory drawing which shows the screen of a display. It is a block diagram of the directional relay apparatus test assistance apparatus which shows Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the directional relay apparatus test assistance apparatus of FIG. It is explanatory drawing which shows the screen of a display.

Explanation of symbols

1 Electrical circuit design support device, 10 Electrical circuit diagram, 16 Directional protection relay device,
161 input terminal, 30 electric circuit confirmation support device, 31 electric circuit diagram display means,
32 target device selection means, 33 terminal connection confirmation means, 34 set value setting means,
37 Setting value addition and display means, 40 display, 41 simulated input value setting means,
50 directional protection relay device simulation device, 51 operation algorithm storage means,
52 motion algorithm reading means, 55 motion presence / absence determining means,
60 management list creation means, 61 target device selection stage, 62 setting value transfer means,
63 protection direction notation means, 65 notation method correction means, 70 electric circuit display device,
71 electric circuit display means, 72 target device selection means, 73 actual voltage actual current reading means,
74 Setting display means, 81 Test device, 85 Directional protection relay device.

Claims (3)

The electric circuit diagram represented by a double-line diagram is displayed on the display device based on the electronic data created by the electric circuit diagram creating software, and the electric circuit diagram operates when the direction of the input electric quantity is a predetermined direction. An electric circuit display means including the directional relay device, a target device selection means for selecting the directional relay device on the electric circuit diagram, and all of the connection terminals of the selected directional relay device. Connection confirmation means for confirming the connection on the electric circuit diagram, setting value setting means for setting the set value of the selected directional relay device, and operation of the selected directional relay device Directional relay device simulation device, simulated input value setting means for setting a simulated input value to be input to the directional relay device simulation device, and the set value, the simulated input value, and the predetermined direction as the electronic data Electrical circuit design support apparatus in correspondence with the electric circuit diagram with a set value or the like added, and display means for displaying on the display device together with adding. The set value, the simulated input value, and the predetermined direction of the directional relay device are selected from the electronic data in which the set value of the directional relay device, the simulated input value, and the operation direction are added. 2. The electric circuit design support apparatus according to claim 1, further comprising management list creation means for extracting a management list to create a management list. An electric circuit diagram represented by a double-line diagram is displayed on a display device based on the electronic data to which the set value, the simulated input value, and the predetermined direction of the directional relay device according to claim 1 are added. The electric circuit diagram includes a directional relay device that operates when the direction of the input quantity of electricity is a predetermined direction, and the test electric circuit display means, and the directional relay device is selected on the electric circuit diagram. Directional relay device test support device provided with a test device for applying a predetermined electrical quantity to a directional relay device of an actual machine corresponding to the selected directional relay device .

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