CN114038264A - Device for automatically generating automatic switch setting value - Google Patents
Device for automatically generating automatic switch setting value Download PDFInfo
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- CN114038264A CN114038264A CN202111312251.XA CN202111312251A CN114038264A CN 114038264 A CN114038264 A CN 114038264A CN 202111312251 A CN202111312251 A CN 202111312251A CN 114038264 A CN114038264 A CN 114038264A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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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
- H02B15/00—Supervisory desks or panels for centralised control or display
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Abstract
The embodiment of the invention discloses a device for automatically generating an automatic switch fixed value. The device includes: the system comprises an operation panel, a network distribution structure simulation diagram, a calculation starting switch and a plurality of parameter selection switches, wherein the distribution network structure simulation diagram is printed on the operation panel; the distribution network structure simulation diagram comprises an automatic switch, and the automatic switch corresponds to at least two parameter selection switches; the microprocessor is electrically connected with the parameter selection switch and the calculation starting switch; the microprocessor is used for calculating the switch fixed value of the automatic switch according to the signal for calculating the start switch and the signal for selecting the switch according to the parameters; and the display is electrically connected with the microprocessor and used for displaying the calculation result of the switch setting value of the automatic switch. According to the technical scheme of the embodiment of the invention, the device capable of automatically generating the fixed value of the distribution network automatic switch is easy to operate, so that a basic worker can conveniently master the operation skill, and the operation and maintenance work efficiency is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of power grid automation, in particular to a device for automatically generating an automatic switch setting value.
Background
With the rapid development of distribution network automation, automation switches are beginning to be applied in a large number of distribution networks. In addition, the good application of the automatic switch, the complex fixed value must be calculated based on the attributes and parameters of the actual power utilization object controlled by the automatic switch.
At present, for the use of an automatic switch, a large number of power supply station primary workers need to perform corresponding knowledge updating and practical skill training in advance. However, due to the fact that the academic levels of basic level workers are different, training and learning of traditional scheduling calculation software are too abstract, the goal of understanding and mastering operation skills is often not achieved, a plurality of basic problems still need to be processed by superior levels in a centralized mode, and the operation and maintenance efficiency of the automatic switch is seriously affected.
Based on this, the definite value of the automatic switch is difficult to master and operate for the basic level staff, which causes the serious influence on the operation and maintenance efficiency of the automatic switch, and becomes a problem to be solved urgently in the industry.
Disclosure of Invention
The embodiment of the invention provides a device for automatically generating an automatic switch setting value, so as to achieve the purposes of facilitating basic-level workers to train and learn and master operation skills and improving the operation and maintenance work efficiency of an automatic switch.
In a first aspect, an embodiment of the present invention provides an apparatus for automatically generating an automatic switch setting value, where the apparatus includes:
the system comprises an operation panel, a network distribution structure simulation diagram, a calculation starting switch and a plurality of parameter selection switches, wherein the distribution network structure simulation diagram is printed on the operation panel; the distribution network structure simulation diagram comprises an automatic switch, and the automatic switch corresponds to at least two parameter selection switches;
the microprocessor is electrically connected with the parameter selection switch and the calculation starting switch; the microprocessor is used for calculating the switch fixed value of the automatic switch according to the signal for calculating the start switch and the signal for selecting the switch according to the parameters;
and the display is electrically connected with the microprocessor and used for displaying the calculation result of the switch setting value of the automatic switch.
Optionally, the apparatus further comprises: the switching value acquisition module is connected between the parameter selection switch and the microprocessor in series; the switching value acquisition module is used for converting the switching state of the parameter selection switch into a digital signal.
Optionally, the apparatus further comprises: and the reset switch is electrically connected with the switching value acquisition module.
Optionally, the automatic switch comprises a 10kV line segment automatic switch;
the 10kV line segment automatic switch corresponds to a first selective switch group, a second selective switch group and a third selective switch group;
the first selection switch group is used for selecting according to a current quick-break protection constant value of a superior switch, and comprises a 3kA parameter selection switch, a 6kA parameter selection switch, a 10kA parameter selection switch, a 15kA parameter selection switch and a 20kA parameter selection switch;
the second selection switch group is used for selecting according to the timing limit overcurrent protection of the superior switch, and comprises a 360A parameter selection switch, a 480A parameter selection switch, a 600A parameter selection switch, a 720A parameter selection switch and a 960A parameter selection switch;
the third selection switch group is used for selecting according to the zero sequence overcurrent protection of the upper-level switch and the zero sequence overcurrent fixed value of the upper-level circuit breaker in a matching mode, and comprises a 20A parameter selection switch, a 30A parameter selection switch, a 50A parameter selection switch, a 100A parameter selection switch and a 200A parameter selection switch.
Optionally, the automatic switch comprises a 10kV line protection automatic switch;
the 10kV line protection automatic switch corresponds to a fourth selection switch group, the fourth selection switch group is selected according to the interception capacity of the line, and the fourth selection switch group comprises 50mm2Parameter selection switch, 70mm2Parameter selection switch, 150mm2Parameter selection switch, 240mm2Parameter selection switch and 300mm2And a parameter selection switch.
Optionally, the automatic switch comprises a 10kV user incoming line demarcation automatic switch;
the 10kV user incoming line boundary automatic switch corresponds to the fifth selection switch group and the sixth selection switch group;
the fifth selection switch group is selected according to the constant value of the current quick-break protection, and comprises a 1000A parameter selection switch and a 1500A parameter selection switch;
and the sixth selection switch group is selected according to the fixed value of the timing limit overcurrent protection, and comprises a 50A parameter selection switch and a 100A parameter selection switch.
Optionally, the automatic switch comprises a distribution transformer protection automatic switch of 800kVA or more;
the automatic distribution transformer protection switch of 800kVA or above corresponds to a seventh selection switch group, the seventh selection switch group is selected according to the capacity of the distribution transformer, and the seventh selection switch group comprises an 800kVA parameter selection switch, a 1000kVA parameter selection switch, a 1250kVA parameter selection switch, a 1600kVA parameter selection switch, a 2000kVA parameter selection switch and a 2500kVA parameter selection switch.
Optionally, the automatic switch comprises a distribution protection automatic switch of 630kVA or below;
the distribution transformer protection automatic switches of 630kVA or below correspond to an eighth selection switch group, the eighth selection switch group is selected according to the capacity of the distribution transformer, and the eighth selection switch group comprises a 630kVA parameter selection switch, a 500kVA parameter selection switch, a 400kVA parameter selection switch, a 315kVA parameter selection switch, a 200kVA parameter selection switch and a 160kVA parameter selection switch.
Optionally, the selection switch group further includes: and the self-defined switch is electrically connected with the microprocessor.
Optionally, the calculation start switch and the parameter selection switch are both physical switches.
According to the technical scheme of the embodiment of the invention, an automatic switch constant value generating device is designed, a distribution network structure simulation diagram is printed on an operation panel, a calculation starting switch and a plurality of parameter selection switches are arranged, and a microprocessor in the device is electrically connected with the parameter selection switches, the calculation starting switch, a display and a switching value acquisition module. When the basic-level staff executes the operation and maintenance work of the automatic switch, the parameter selection switches with the corresponding functions are selected, then the switch fixed value of the automatic switch can be obtained through the calculation of the microprocessor, and the calculation result can be displayed on the display. Therefore, the interface and the operation of the embodiment of the invention are intuitive, the learning and the operation of workers are easy, and the invention is suitable for different working crowds, thereby being beneficial to ensuring the working efficiency of the operation and maintenance work of the automatic switch.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for automatically generating an automatic switch setting value according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an operation panel in an automatic generation automatic switch valuing device according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a calculation process of a 10kV line segment automatic switch in an apparatus for automatically generating an automatic switch constant value according to an embodiment of the present invention;
fig. 4 is a flowchart of a calculation of a 10kV line segment automatic switch in another automatic generation automatic switch valuing device according to an embodiment of the present invention;
fig. 5 is a flowchart of a calculation of a 10kV line segment automatic switch in another automatic generation automatic switch valuing device according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a calculation of a 10kV line protection automatic switch in an apparatus for automatically generating an automatic switch constant value according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a calculation of a 10kV user incoming line boundary automatic switch in an apparatus for automatically generating an automatic switch constant value according to an embodiment of the present invention;
fig. 8 is a flowchart of the calculation of the distribution transformer protection automation switch with a maximum value of 800kVA or more in the automatic generation automation switch constant value device according to the embodiment of the present invention;
fig. 9 is a flowchart of calculation of a distribution protection automation switch of 630kVA or less in an automatic generation automation switch valuator according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
An embodiment of the present invention provides an apparatus for automatically generating an automatic switch setting value, fig. 1 is a schematic structural diagram of an apparatus for automatically generating an automatic switch setting value according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of an operation panel in an apparatus for automatically generating an automatic switch setting value according to an embodiment of the present invention. As shown in fig. 1 and 2, the device for automatically generating an automatic switch setting value comprises: an operating panel 109, a microprocessor 110 and a display 120. A distribution network structure simulation diagram is printed on the operation panel 109, and a calculation start switch 107 and a plurality of parameter selection switches are arranged on the operation panel; the distribution network structure simulation diagram comprises an automatic switch, and the automatic switch corresponds to at least two parameter selection switches. The microprocessor 110 is electrically connected with the parameter selection switch, and the microprocessor 110 is electrically connected with the calculation start switch 107; the microprocessor 110 is used to calculate the switch setting of the automation switch based on the signal of the calculation start switch 107 and the signal of the parameter selection switch. The display 120 is electrically connected to the microprocessor 110, and the display 120 is used for displaying the switch setting value calculation result of the automatic switch.
Specifically, the operation panel 109 is a control panel for operation control of the staff during operation and maintenance of the automatic switch, and a distribution network structure simulation diagram, that is, a structure layout simulation diagram on the operation panel shown in fig. 2, is printed on the operation panel 109. The distribution network structure simulation diagram comprises automatic switches, such as a 10kV line section automatic switch 101, a 10kV line protection automatic switch 103, a 10kV user incoming line boundary automatic switch 104, a distribution transformer protection automatic switch 105 with the voltage of 800kVA or above, and a distribution transformer protection automatic switch 106 with the voltage of 630kVA or below. It should be noted that the respective automatic switches on the operation panel 109 are only schematic diagrams of their connections in the line, and are not physical switches. The distribution network structure simulation diagram is printed to enable the connection structure of each function automatic switch in the distribution network structure simulation diagram to be clear, and corresponding function operation is convenient for basic-level workers. Different from the automatic switch in the distribution network structure simulation diagram, the calculation start switch 107 and the plurality of parameter selection switches are physical switches, for example, a key switch or a dial switch, and the corresponding selection switch group can be selected by pressing the switches.
The microprocessor 110 may be electrically connected to the parameter selection switch and the calculation start switch 107 on the operation panel 109, and is configured to receive the switching signals generated by the parameter selection switch and the calculation start switch 107, and calculate the corresponding automatic switching value according to the switching signals. For example, the switching value acquisition module 100 may be connected between the microprocessor 110 and the parameter selection switch or the calculation start switch 107, and a plurality of parameter selection switches and calculation start switches 107 are connected to the switching value acquisition module 100. The switching signals generated by the parameter selection switch and the calculation start switch 107 can be converted into digital signals by the switching value acquisition module 100, and then transmitted to the microprocessor 110, and the corresponding switching constant value calculation formula is called to calculate the switching constant value of the automatic switch. The microprocessor 110 calculates the switch setting value result of each automatic switch according to the received switch information by using the switch setting value calculation formula, and then transmits the switch setting value result to the display 120, and the switch setting value calculation result of the automatic switch is displayed on the display 120. The display 120 may be a touch screen display so that a worker may manually input relevant parameters directly on the touch screen display.
According to the technical scheme, the automatic switch constant value generating device is designed, a distribution network structure simulation diagram is printed on an operation panel, a calculation starting switch and a plurality of parameter selection switches are arranged, and a microprocessor in the device is electrically connected with the parameter selection switches, the calculation starting switch, a display and a switching value acquisition module. When the basic-level staff executes the operation and maintenance work of the automatic switch, the parameter selection switches with the corresponding functions are selected, then the switch fixed value of the automatic switch can be obtained through the calculation of the microprocessor, and the calculation result can be displayed on the display. Therefore, the interface and the operation of the embodiment of the invention are intuitive, the learning and the operation of workers are easy, and the invention is suitable for different working crowds, thereby being beneficial to ensuring the working efficiency of the operation and maintenance work of the automatic switch.
With continued reference to fig. 2, based on the above embodiment, optionally, the automatic value generation device further includes a reset switch 108, where the reset switch 108 is electrically connected to the switching value acquisition module 100, and may be configured to, after all the selection switches of the relevant automatic switches are selected, before the calculation start switch 107 is pressed, find that there is a selection error in the selection switches, press the reset switch 108, and restore the settings of all the selection switches to the initial state, that is, all the selection switches are in a state where no selection is performed, so as to perform reselection; the reset switch 108 may also be configured to complete selection of all selection switches of the relevant automation switches, and after the calculation start switch 107 is pressed, the switch information is already transmitted to the switching value acquisition module 100, and at this time, a selection error occurs in the selection switches, or the reset switch 108 may be pressed, and the reset switch 108 forms a corresponding reset signal and transmits the reset signal to the switching value acquisition module 100, so that the settings of all selection switches are restored to the initial state, and thus reselection may be performed.
In the above embodiments, different selection switches implement different functions, which will be described in detail below.
The 10kV line section automatic switch 101 is used for quickly removing user faults and avoiding tripping of a 10kV line of a transformer substation, and a switch constant value needs to be set in a matched mode according to three switch constant values of a current quick-break protection constant value, a timing limit overcurrent protection constant value and a zero-sequence overcurrent protection constant value of a superior switch. Fig. 3 is a flowchart of calculating a current quick-break protection constant value of a 10kV line segment automatic switch according to an embodiment of the present invention. On the basis of the above embodiment, optionally, in combination with fig. 2 and 3, the 10kV line segment automation switch 101 in the apparatus may include a first selection switch group 101-1. The first selection switch group 101-1 is used for selecting according to the current quick-break protection constant value of the superior switch, and the first selection switch group 101-1 comprises a key 1, a key 2, a key 3, a key 4 and a key 5. The key 1 corresponds to a 3kA parameter selection switch, the key 2 corresponds to a 6kA parameter selection switch, the key 3 corresponds to a 10kA parameter selection switch, the key 4 corresponds to a 15kA parameter selection switch, and the key 5 corresponds to a 20kA parameter selection switch.
Illustratively, when the first selection switch group 101-1 is selected, the 3kA parameter selection switch is invoked, and the 1 key is pressed. The serial numbers of the other selector switch groups are the same as those of the first selector switch group 101-1, and are not described herein again. Specifically, the specific value of each switch in the first selection switch group 101-1 may be set according to 85% of the current snap-off protection fixed value of the upper-level switch, and may include 5 parameter selection switches with already set values, that is, a 3kA parameter selection switch, a 6kA parameter selection switch, a 10kA parameter selection switch, a 15kA parameter selection switch, and a 20kA parameter selection switch. Wherein, the 1 key press in the first selection switch group 101-1 indicates the high potential of the switching value acquisition module I1, the 2 key press in the first selection switch group 101-1 indicates the high potential of the switching value acquisition module I2, the 3 key press in the first selection switch group 101-1 indicates the high potential of the switching value acquisition module I3, the 4 key press in the first selection switch group 101-1 indicates the high potential of the switching value acquisition module I4, and the 5 key press in the first selection switch group 101-1 indicates the high potential of the switching value acquisition module I5. And after the corresponding selection switch is pressed down, the corresponding selection switch is communicated through an RS485 network port and is sent to the microprocessor, and an application program of the microprocessor calls a power supply quick-break protection fixed value calculation formula and data according to the state of the switching value acquisition module, calculates and outputs a calculation result.
Preferably, the first selection switch group 101-1 may further include a self-defined switch, where the self-defined switch corresponds to the 6-key in fig. 3, and is used for setting a corresponding numerical value according to a function requirement when the set specific numerical value does not include the current quick-break protection fixed value of the required superior switch. Illustratively, a specific numeric value is manually entered on the display, which is a custom input. When the self-defined switch is pressed, the switch information signal can be transmitted to the microprocessor for calculation.
Fig. 4 is a flowchart of calculating a timing limit overcurrent protection constant value of a 10kV line section automatic switch according to an embodiment of the present invention. On the basis of the above embodiment, optionally, in conjunction with fig. 2 and 4, the 10kV line segment automation switch 101 in the apparatus may include a second selection switch group 101-2.
The second selection switch group 101-2 is used for selection according to the timing-limited overcurrent protection of the superior switch, and the second selection switch group 101-2 may include a 1 key, a 2 key, a 3 key, a 4 key, and a 5 key. The 1 key corresponds to a 360A parameter selection switch, the 2 key corresponds to a 480A parameter selection switch, the 3 key corresponds to a 600A parameter selection switch, the 4 key corresponds to a 720A parameter selection switch, and the 5 key corresponds to a 960A parameter selection switch.
Specifically, in the second selection switch group 101-2, 5 specific value parameter selection switches, that is, a 360A parameter selection switch, a 480A parameter selection switch, a 600A parameter selection switch, a 720A parameter selection switch, and a 960A parameter selection switch, are set according to 85% of the upper switch timing limit overcurrent protection. Wherein, the press of the 1 key in the second selection switch group 101-2 indicates that the switching value acquisition module I7 is at a high potential, the press of the 2 key in the second selection switch group 101-2 indicates that the switching value acquisition module I8 is at a high potential, the press of the 3 key in the second selection switch group 101-2 indicates that the switching value acquisition module I9 is at a high potential, the press of the 4 key in the second selection switch group 101-2 indicates that the switching value acquisition module I10 is at a high potential, and the press of the 5 key in the second selection switch group 101-2 indicates that the switching value acquisition module I11 is at a high potential. And after the corresponding selection switch is pressed, switching information is sent to the microprocessor through RS485 network port communication, an application program of the microprocessor calls a timing limit overcurrent protection fixed value calculation formula and data according to the state of the switching value acquisition module, and a calculation result is calculated and output. Preferably, the second selection switch group 101-2 also includes a self-defining switch corresponding to the 6-key in fig. 4, for the operator to manually self-define and input a specific numerical value on the display when the required numerical value is not among the set numerical values.
Fig. 5 is a flowchart of calculating a zero-sequence overcurrent protection constant value of a 10kV line segment automation switch according to an embodiment of the present invention. On the basis of the above embodiment, optionally, in conjunction with fig. 2 and 5, the 10kV line segment automation switch 101 in the apparatus may include a third selection switch group 101-3.
The third selection switch group 101-3 is used for selecting according to the zero sequence overcurrent protection of the superior switch and the zero sequence overcurrent fixed value of the upper-stage circuit breaker, and the third selection switch group 101-3 can comprise a key 1, a key 2, a key 3, a key 4 and a key 5. The 1 key corresponds to a 20A parameter selection switch, the 2 key corresponds to a 30A parameter selection switch, the 3 key corresponds to a 50A parameter selection switch, the 4 key corresponds to a 100A parameter selection switch, and the 5 key corresponds to a 200A parameter selection switch.
The third selection switch group 101-3 is used for selecting according to the zero sequence overcurrent protection of the superior switch and the zero sequence overcurrent fixed value of the upper-stage circuit breaker, and is used for performing leakage protection. The third selection switch group 101-3 sets 5 specific numerical parameter selection switches, i.e., a 20A parameter selection switch, a 30A parameter selection switch, a 50A parameter selection switch, a 100A parameter selection switch, and a 200A parameter selection switch. Wherein, the press of the 1 key in the first selection switch group 101-3 indicates that the switching value acquisition module I13 is at a high potential, the press of the 2 key in the first selection switch group 101-3 indicates that the switching value acquisition module I14 is at a high potential, the press of the 3 key in the first selection switch group 101-3 indicates that the switching value acquisition module I15 is at a high potential, the press of the 4 key in the first selection switch group 101-3 indicates that the switching value acquisition module I16 is at a high potential, and the press of the 5 key in the first selection switch group 101-3 indicates that the switching value acquisition module I17 is at a high potential.
Preferably, the third selection switch group 101-3 further comprises a self-defining switch corresponding to the 6-key in fig. 5, for allowing the operator to manually self-define and input a specific value on the display when the value of the existing parameter selection switch does not include the required value.
Illustratively, taking the selection of the 3kA parameter selection switch in the first selection switch group 101-1, the 480A parameter selection switch in the second selection switch group 101-2, and the 50A parameter selection switch in the third selection switch group 101-3 as an example, the calculation process of the automatic generation of the switching value of the 10kV line segment automation switch 101 is explained as follows: in the 10kV line segment automation switch 101, the 1 key in the first selection switch group 101-1, the 2 key in the second selection switch group 101-2, and the 3 key in the third selection switch group 101-3 are pressed. When all the selection switch groups are selected, the calculation start switch 107 is pressed, three groups of switch information can be generated, the three groups of switch information are transmitted to the switching value acquisition module and then converted into digital signals, namely the first selection switch group 101-1 generates 1000000, the second selection switch group 101-2 generates 0100000, and the third selection switch group 101-3 generates 0010000. For example, 1000000 is generated by the first selection switch group 101-1, the switch information may be understood as pressing and calling a 3kA parameter selection switch, and the switch information generated by the second selection switch group 101-2 and the third selection switch group 101-3 has a similar meaning to that of the first selection switch group 101-1, and is not described herein again. And then the switching information is transmitted to the microprocessor through RS485 network port communication, and a calculation result is obtained according to a related calculation formula and is output and displayed to a display, so that the automatic generation of the constant value of the 10kV line section automatic switching is completed. The related calculation formulas can include a current quick-break protection fixed value calculation formula, a fixed time limit overcurrent protection fixed value calculation formula and a zero sequence overcurrent protection fixed value calculation formula.
Optionally, fig. 6 is a flowchart of calculating a 10kV line protection automatic switch in an apparatus for automatically generating an automatic switch constant value according to an embodiment of the present invention. On the basis of the above-described embodiment, with reference to fig. 2 and 6, the automatic switch in the apparatus includes a 10kV line protection automatic switch 103.
The 10kV line protection automatic switch 103 corresponds to a fourth selection switch group 103-1, the fourth selection switch group 103-1 is selected according to the current-cutting capacity of the line, and the fourth selection switch group 103-1 can comprise a 1 key, a 2 key, a 3 key, a 4 key and a 5 key. 1 key corresponding to 50mm2Parameter selection switch, 2 keys corresponding to 70mm2Parameter selection switch, 3 keys corresponding to 150mm2Parameter selection switch, 4 keys corresponding to 240mm2Parameter selection switch, 5 keys corresponding to 300mm2And a parameter selection switch.
Specifically, the 10kV line protection automatic switch 103 is used for preventing the condition of current overload in the distribution network line, the magnitude of the current allowed to flow is calculated according to the size of the section of the line, and the specific switch value of each parameter selection switch in the fourth selection switch group 103-1 can be set according to 85% of the line interception capacity. Wherein the fourth selection switch group 103-1 may comprise 5 parameter selection switches with specific values set, i.e. 50mm2Parameter selection switch, 70mm2Parameter selection switch, 150mm2Parameter selection switch, 240mm2Parameter selection switch and 300mm2And a parameter selection switch. Wherein, the press of the 1 key in the fourth selection switch group 103-1 indicates that the switching value acquisition module I19 is at a high potential, the press of the 2 key in the fourth selection switch group 103-1 indicates that the switching value acquisition module I20 is at a high potential, the press of the 3 key in the fourth selection switch group 103-1 indicates that the switching value acquisition module I21 is at a high potential, the press of the 4 key in the fourth selection switch group 103-1 indicates that the switching value acquisition module I22 is at a high potential, and the press of the 5 key in the fourth selection switch group 103-1 indicates that the switching value acquisition module I23 is at a high potential. Preferably, the fourth selection switch group 103-1 may further include a custom switch corresponding to the 6-key of fig. 6 for allowing a worker to manually input a numerical value on the display when the existing parameter selection switch does not include the desired numerical value.
When the switch constant value is automatically generated, a corresponding parameter selection switch is selected to be pressed, then a calculation start switch 107 is pressed, generated switch information is transmitted to a switching value acquisition module to be converted into a digital signal, the digital signal is transmitted to a microprocessor through RS485 network port communication connection, an application program of the microprocessor calls a corresponding calculation formula according to the state of the switching value acquisition module to obtain a calculation result, the calculation result is transmitted and displayed to a display, and the automatic generation of the 10kV line protection automatic switch constant value is completed. The specific selection calculation process is the same as that in the above embodiment, and is not described herein again.
Optionally, fig. 7 is a flowchart for calculating a 10kV user incoming line boundary automatic switch in an apparatus for automatically generating an automatic switch rating value according to an embodiment of the present invention. On the basis of the above-mentioned embodiment, in conjunction with fig. 2 and 7, the automatic switch in the apparatus includes a 10kV user incoming line demarcation automatic switch 104.
The 10kV user incoming line boundary automatic switch 104 corresponds to the fifth selection switch group 104-1 and the sixth selection switch group 104-2.
Specifically, the 10kV user incoming line demarcation automation switch 104 may also be referred to as a watchdog, and may be used to automatically remove a single-phase ground fault, automatically isolate an inter-phase short-circuit fault, quickly locate a fault point, and monitor a user load. The 10kV user incoming line demarcation automatic switch 104 correspondingly comprises a fifth selection switch group 104-1 and a sixth selection switch group 104-2.
The fifth selection switch group 104-1 is selected according to the constant value of the current quick-break protection, and the fifth selection switch group 104-1 may include a 1 key and a 2 key. The 1 key corresponds to a 1000A parameter selection switch and the 2 key corresponds to a 1500A parameter selection switch.
Specifically, the constant value of the fifth selector switch group 104-1 is set according to the constant value of the current quick-break protection, and the constant value of the quick-break protection section of the maximum capacity distribution and change in the power-taking room and the constant value of the current quick-break section of the previous-stage circuit breaker are matched to set a numerical value, which may include a 1000A parameter selector switch and a 1500A parameter selector switch. If the maximum capacity distribution in the electricity-taking room is 800kVA or below, the 1000A parameter selection switch 104-1-1 is selected. Wherein, the press of the 1 key in the fifth selection switch group 104-1 indicates that the switching value acquisition module I25 is at a high potential, and the press of the 2 key in the fifth selection switch group 104-1 indicates that the switching value acquisition module I26 is at a high potential. Preferably, the fifth selection switch group 104-1 may further include a custom switch, which corresponds to the 3 keys in the flow chart of the calculation of the current quick-break protection constant value in fig. 7. When the key of the self-defining switch 3 in the fifth selection switch group 104-1 is pressed, the high potential of the switching value acquisition module I27 is indicated.
The sixth selection switch group 104-2 is selected according to the fixed value of the timing limit overcurrent protection, and the sixth selection switch group 104-2 may include a 1 key and a 2 key. The 1 key corresponds to a 50A parameter selection switch, and the 2 key corresponds to a 100A parameter selection switch.
Specifically, the sixth selection switch group 104-2 is automatically generated according to the timing limit overcurrent protection setting value, and is matched with the timing limit overcurrent protection section setting value of the previous stage circuit breaker according to the sum of all distribution transformer overcurrent setting values in the power taking room, so as to set the value of each parameter selection switch. The sixth selection switch group 104-2 may include a 50A parameter selection switch and a 100A parameter selection switch, and a custom switch, which corresponds to key 3 in the flow chart of the calculation of the zero-sequence overcurrent protection constant value in fig. 7. When the 1 key in the sixth selection switch group 104-2 is pressed, the switching value acquisition module I28 is indicated to be high, when the 2 key in the sixth selection switch group 104-2 is pressed, the switching value acquisition module I29 is indicated to be high, and when the 3 key of the custom switch in the sixth selection switch group 104-2 is pressed, the switching value acquisition module I30 is indicated to be high.
In the process of automatically generating the switch setting value of the 10kV user incoming line boundary automatic switch 104, when the fifth selection switch group 104-1 and the sixth selection switch group 104-2 are selected to be completed, the calculation start switch 107 is pressed, generated switch information is transmitted to the switching value acquisition module, the converted signal is transmitted to the microprocessor through the RS485 switching network port, an application program in the microprocessor calls a corresponding calculation formula and data according to the state of the switching value acquisition module, and the result of the calculated switch setting value is output and displayed to a display, namely the process of automatically generating the switch setting value of the 10kV user incoming line boundary automatic switch 104 is completed.
Optionally, fig. 8 is a flowchart of calculating an automatic distribution protection switch in an automatic generation automation switch valuing device of 800kVA or more according to an embodiment of the present invention. On the basis of the above embodiment, with reference to fig. 2 and 8, the automation switch in the device includes the distribution protection automation switch 105 of 800kVA and above.
The distribution transformer protection automatic switch 105 of 800kVA and above corresponds to the seventh selection switch group 105-1, the seventh selection switch group 105-1 is selected according to the capacity of the distribution transformer, and the seventh selection switch group 105-1 can comprise a 1 key, a 2 key, a 3 key, a 4 key, a 5 key and a 6 key. Wherein, the key 1 corresponds to 800kVA parameter selection switch, the key 2 corresponds to 1000kVA parameter selection switch, the key 3 corresponds to 1250kVA parameter selection switch, the key 4 corresponds to 1600kVA parameter selection switch, the key 5 corresponds to 2000kVA parameter selection switch, and the key 6 corresponds to 2500kVA parameter selection switch.
Specifically, the distribution transformer protection automation switch 105 of 800kVA and above is used for monitoring that all the electric loads on the distribution transformer line do not exceed the size of the distribution transformer capacity, so as to protect the distribution transformer line. The seventh selector switch group 105-1 sets the specific value of the parameter selector switch according to the size of the distribution transformer capacity, and when the distribution transformer capacity exceeds the selected generated switch fixed value, the switch can trip, so as to achieve the purpose of distribution transformer protection. The seventh selection switch group 105-1 may include 6 parameter selection switches having set values, i.e., an 800kVA parameter selection switch, a 1000kVA parameter selection switch, a 1250kVA parameter selection switch, a 1600kVA parameter selection switch, a 2000kVA parameter selection switch, and a 2500kVA parameter selection switch. Wherein, the press of the 1 key in the seventh selection switch group 105-1 indicates that the switching value acquisition module I31 is at a high potential, the press of the 2 key in the seventh selection switch group 105-1 indicates that the switching value acquisition module I32 is at a high potential, the press of the 3 key in the seventh selection switch group 105-1 indicates that the switching value acquisition module I33 is at a high potential, the press of the 4 key in the seventh selection switch group 105-1 indicates that the switching value acquisition module I34 is at a high potential, the press of the 5 key in the seventh selection switch group 105-1 indicates that the switching value acquisition module I35 is at a high potential, and the press of the 6 key in the seventh selection switch group 105-1 indicates that the switching value acquisition module I36 is at a high potential. When all the selection switches in the seventh selection switch group 105-1 are selected, the calculation start switch 107 is pressed, the microprocessor receives the switch information through the RS485 switching network port communication connection, and then the application program calls a corresponding calculation formula according to the state of the switching value acquisition module to calculate a switching constant value result and outputs and displays the switching constant value result to a display, so that the automatic generation of the switching constant value of the distribution protection automatic switch 105 of 800kVA or above is completed.
Optionally, fig. 9 is a flowchart of calculating a distribution protection automation switch in an automatic generation automation switch valuing device of 630kVA or less according to an embodiment of the present invention. On the basis of the above embodiment, with reference to fig. 2 and 9, the automatic switch in the device includes the distribution protection automatic switch 106 of 630kVA or less.
The distribution protection automation switch 106 of 630kVA or below corresponds to the eighth selection switch group 106-1, the eighth selection switch group 106-1 is selected according to the capacity of the distribution, and the eighth selection switch group 106-1 can comprise a 1 key, a 2 key, a 3 key, a 4 key, a 5 key and a 6 key. The key 1 corresponds to a 630kVA parameter selection switch, the key 2 corresponds to a 500kVA parameter selection switch, the key 3 corresponds to a 400kVA parameter selection switch, the key 4 corresponds to a 315kVA parameter selection switch, the key 5 corresponds to a 200kVA parameter selection switch, and the key 6 corresponds to a 160kVA parameter selection switch.
Specifically, the eighth selector switch group 106-1 corresponding to the distribution protection automation switch 106 of 630kVA or below also sets the specific values of the parameter selector switches according to the different sizes of the capacities of the distribution transformers, and may include 6 parameter selector switches with set values, namely, a 630kVA parameter selector switch, a 500kVA parameter selector switch, a 400kVA parameter selector switch, a 315kVA parameter selector switch, a 200kVA parameter selector switch, and a 160kVA parameter selector switch. Wherein, the press of the 1 key in the eighth selection switch group 106-1 indicates the high potential of the switching value collection module I37, the press of the 2 key in the eighth selection switch group 106-1 indicates the high potential of the switching value collection module I38, the press of the 3 key in the eighth selection switch group 106-1 indicates the high potential of the switching value collection module I39, the press of the 4 key in the eighth selection switch group 106-1 indicates the high potential of the switching value collection module I40, the press of the 5 key in the eighth selection switch group 106-1 indicates the high potential of the switching value collection module I41, and the press of the 6 key in the eighth selection switch group 106-1 indicates the high potential of the switching value collection module I42. When all parameter selection switches related to the distribution protection automation switch 106 of 630kVA or below are selected, the calculation start switch 107 is pressed, the generated switch information is converted by the switching value acquisition module and is transmitted to the microprocessor through RS485 network port communication, an application program in the microprocessor calls a related calculation formula according to the state of the switching value acquisition module to obtain a switch constant value calculation result, and the switch constant value calculation result is output and displayed to a display, so that the automatic generation of the switch constant value of the distribution protection automation switch 106 of 630kVA or below is completed.
In the above embodiments, the setting values of the function switches are automatically generated through switch selection and result calculation in the automatic switch setting value generation device, the interface and operation are intuitive, and the learning and operation of workers are easy, so that the work efficiency of operation and maintenance work of the automatic switch is favorably ensured.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An apparatus for automatically generating an automated switch setting, comprising:
the system comprises an operation panel, a network distribution structure simulation diagram, a calculation starting switch and a plurality of parameter selection switches, wherein the operation panel is printed with the distribution network structure simulation diagram and is provided with the calculation starting switch and the plurality of parameter selection switches; the distribution network structure simulation diagram comprises an automatic switch, and the automatic switch corresponds to at least two parameter selection switches;
the microprocessor is electrically connected with the parameter selection switch and the calculation starting switch; the microprocessor is used for calculating the switching fixed value of the automatic switch according to the signal for starting switching and the signal for selecting the switch according to the parameters;
and the display is electrically connected with the microprocessor and used for displaying the switch fixed value calculation result of the automatic switch.
2. The apparatus for automatically generating an automated switch value according to claim 1, further comprising:
the switching value acquisition module is connected between the parameter selection switch and the microprocessor in series; and the switching value acquisition module is used for converting the switching state of the parameter selection switch into a digital signal.
3. The apparatus for automatically generating an automated switch value according to claim 2, further comprising:
and the reset switch is electrically connected with the switching value acquisition module.
4. The apparatus for automatically generating automated switch ratings as claimed in claim 1 wherein the automated switch comprises a 10kV line segment automated switch;
the 10kV line segment automatic switch corresponds to a first selection switch group, a second selection switch group and a third selection switch group;
the first selection switch group is used for selecting according to a current quick-break protection fixed value of a superior switch, and comprises a 3kA parameter selection switch, a 6kA parameter selection switch, a 10kA parameter selection switch, a 15kA parameter selection switch and a 20kA parameter selection switch;
the second selection switch group is used for selecting according to the timing limit overcurrent protection of the superior switch, and comprises a 360A parameter selection switch, a 480A parameter selection switch, a 600A parameter selection switch, a 720A parameter selection switch and a 960A parameter selection switch;
the third selection switch group is used for selecting according to the zero sequence overcurrent protection of the upper-level switch and the zero sequence overcurrent fixed value of the upper-level circuit breaker in a matching mode, and comprises a 20A parameter selection switch, a 30A parameter selection switch, a 50A parameter selection switch, a 100A parameter selection switch and a 200A parameter selection switch.
5. The apparatus for automatically generating an automated switch value according to claim 1, characterized in that the automated switch comprises a 10kV line protection automated switch;
the 10kV line protection automatic switch corresponds to a fourth selection switch group, the fourth selection switch group is selected according to the interception capacity of the line, and the fourth selection switch group comprises 50mm2Parameter selection switch, 70mm2Parameter selection switch, 150mm2Parameter selection switch, 240mm2Parameter selection switch and 300mm2And a parameter selection switch.
6. The apparatus for automatically generating automated switch ratings as claimed in claim 1 wherein the automated switch comprises a 10kV user incoming line demarcation automated switch;
the 10kV user incoming line boundary automatic switch corresponds to a fifth selection switch group and a sixth selection switch group;
the fifth selection switch group is selected according to a fixed value of current quick-break protection, and comprises a 1000A parameter selection switch and a 1500A parameter selection switch;
and the sixth selection switch group is selected according to a fixed value of timing limit over-current protection, and comprises a 50A parameter selection switch and a 100A parameter selection switch.
7. The apparatus for automatically generating automatic switch ratings as claimed in claim 1 wherein the automatic switches comprise 800kVA and above distribution protection automatic switches;
the automatic distribution transformer protection switch of 800kVA or above corresponds to a seventh selection switch group, the seventh selection switch group is selected according to the capacity of the distribution transformer, and the seventh selection switch group comprises an 800kVA parameter selection switch, a 1000kVA parameter selection switch, a 1250kVA parameter selection switch, a 1600kVA parameter selection switch, a 2000kVA parameter selection switch and a 2500kVA parameter selection switch.
8. The apparatus for automatically generating an automated switch value according to claim 1, wherein the automated switch comprises a 630kVA and below distribution protection automated switch;
the automatic distribution transformer protection switch of 630kVA and below corresponds to an eighth selection switch group, the eighth selection switch group selects according to the capacity of the distribution transformer, and the eighth selection switch group comprises a 630kVA parameter selection switch, a 500kVA parameter selection switch, a 400kVA parameter selection switch, a 315kVA parameter selection switch, a 200kVA parameter selection switch and a 160kVA parameter selection switch.
9. Device for automatically generating automatic switching values according to any of claims 4 to 8, characterized in that the selection switch group further comprises:
and the self-defined switch is electrically connected with the microprocessor.
10. Device for the automatic generation of automatic switching values according to claim 1, characterized in that said calculation start switch and said parameter selection switch are both physical switches.
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