A 6kV busbar one-key switching operation method for monitoring system

Abstract

A 6kV bus one-key switching operation method for a monitoring system includes a bus connection-to-section method and a bus section-to-connection method. The two methods each have two operating modes: operation of section I bus with section II bus and operation of section II bus with section I bus. By combining the synchronization condition judgment of a synchronization device with a 6kV bus one-key switching operation process, a process capable of automatically judging synchronization and automatically switching is designed according to required conditions and steps. Through the automatic judgment and automatic switching process, the 6kV bus one-key switching operation is realized, making the 6kV bus switching operation more convenient and safe.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power production, and in particular to a 6kV busbar one-key switching operation method for a monitoring system. Background Art

[0002] The process of changing the electrical primary equipment from one state to another is called switching, and the operation is called switching operation. That is, operating the isolating switch, circuit breaker, and hanging or removing the grounding wire to change the electrical equipment from one state to another or change the system's operating mode.

[0003] The "five prevention" principles must be strictly followed during switching operations, namely, preventing the switch from being pulled or closed by mistake; preventing the disconnector from being pulled or closed under load; preventing the grounding wire from being hung or the grounding switch from being closed under power; preventing the grounding wire from being closed while the switch is powered on; and preventing entering the energized interval by mistake.

[0004] Generally speaking, the switching operation must be carried out in accordance with the operation ticket system and the work supervision system. Two people are required to perform the same operation. The supervisor is responsible for reading the ticket and monitoring, and the operator is responsible for repeating and operating. Especially important and complex switching operations are operated by skilled operators and monitored by the person in charge of the operation on duty. It is also necessary to do a good job of "five preventions" to avoid misoperation. This situation consumes manpower, time, and is inefficient. If the operation is improper, it may cause accidents such as busbar tripping. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a one-key switching operation method for a 6kV busbar for a monitoring system, which realizes the remote one-key switching of the monitoring system and can also perform self-judgment through the synchronization device to select the synchronous operation mode or the asynchronous operation mode.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A 6kV busbar one-key switching operation method for a monitoring system includes two methods: a busbar connection-to-section method and a busbar section-to-connection method. The two methods each have two operating modes: one in which the I-section busbar operates with the II-section busbar and the other in which the II-section busbar operates with the I-section busbar. By combining the synchronization condition judgment of a synchronization device with the busbar one-key switching operation process, the synchronization is automatically judged and the switching is performed automatically according to the required conditions and steps, thereby realizing the busbar one-key switching operation.

[0008] In the above busbar connection and sectioning method, the steps of the operation method of busbar section I with busbar section II are as follows:

[0009] Step 1. After receiving the start command of the 6kV busbar interconnection transfer to section, and the operation method of busbar section I with busbar section II, check whether the operating conditions are met: there is no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are in the remote position; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are put into operation; the closing power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is open; the busbar interconnection switches of sections I and II are closed; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited;

[0010] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0011] Step 3.1: When the synchronization method is used, issue a command to close the busbar section II incoming switch. If the busbar section II incoming switch closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0012] After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0013] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0014] After completing step 4.2 and step 3.2, issue a command to close the busbar incoming switch of section II. If the busbar incoming switch of section II closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0015] In the above busbar connection and sectioning method, the operation steps of busbar section II with busbar section I are as follows:

[0016] Step 1. After receiving the start command of the 6kV busbar interconnection transfer to section, section II busbar with section I busbar operation method, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the section I and II busbar incoming line switches and the section I and II busbar interconnection switches are far away; the grounding switches of the section I and II busbar incoming line switches are in the open state; the section I and II busbar incoming line switches and the section I and II busbar interconnection switches have no protection action; the operation power of the section I and II busbar incoming line switches and the section I and II busbar interconnection switches are put into operation; the section I busbar incoming line switch is in the open state; the section II busbar incoming line switch is in the closed state; the section I and II busbar interconnection switches are in the closed state; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is issued and the operation method is exited;

[0017] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0018] Step 3.1: When the synchronization method is adopted, a command is issued to close the busbar incoming switch of section I. If the busbar incoming switch of section I closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0019] After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0020] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0021] After completing step 4.2 and step 3.2, issue a command to close the incoming switch of bus section I. If the incoming switch of bus section I closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0022] In the above busbar segmented transfer and connection, the operation method and steps of busbar segment I with busbar segment II are as follows:

[0023] Step 1. After receiving the start command of the 6kV busbar segment transfer and busbar section I with busbar section II operation method, check whether the operating conditions are met: there is no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II are in the remote position; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II are put into operation; the closing power of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is closed; the busbar connecting switches of sections I and II are open; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited;

[0024] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0025] Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0026] After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section II. If the busbar incoming switch of section II opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0027] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar section II incoming switch. If the busbar section II incoming switch is opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0028] After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the busbar connecting switches of sections I and II are closed normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0029] In the above busbar segmented transfer and connection, the operation method and steps of busbar section II with busbar section I are as follows:

[0030] Step 1. After receiving the start command of the 6kV busbar segment transfer and busbar section II with busbar section I operation method, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar section I and II connecting switches are far away; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar section I and II connecting switches; the operating power of the busbar section I and II incoming switches and the busbar section I and II connecting switches is put into operation; the closing power of the busbar section I and II incoming switches and the busbar section I and II connecting switches is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is closed; the busbar section I and II connecting switches are open; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited;

[0031] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0032] Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0033] After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0034] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0035] After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the busbar connecting switches of sections I and II are closed normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0036] The present invention provides a 6kV busbar one-key switching operation method for a monitoring system, which combines the synchronization conditions determined by a synchronization device with the busbar one-key switching operation process, automatically determines the synchronization and automatically switches according to the required conditions and steps, and realizes the busbar one-key switching operation, and has the following beneficial effects:

[0037] 1. Reduce the workload of operators, save human resources, shorten the switching operation time, and improve operation efficiency;

[0038] 2. Improve the safety and reliability of switching operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0040] Figure 1 This is a logic diagram of the present invention regarding "6kV busbar connection and segmentation, busbar segment I with busbar segment II operation permission";

[0041] Figure 2 This is a logic diagram of the present invention regarding "6kV busbar interconnection and segmentation, busbar segment II with busbar segment I operation permission";

[0042] Figure 3 This is a logic diagram of "6kV busbar segmented transfer and connection operation permission" of the present invention;

[0043] Figure 4 This is a diagram of the present invention regarding the operation method of 6kV busbar connecting and segmenting, and busbar segment I with busbar segment II;

[0044] Figure 5 This is a diagram of the present invention regarding the operation method of 6kV busbar interconnection and segmentation, and busbar segment II with busbar segment I;

[0045] Figure 6 This is a diagram of the present invention regarding the 6kV busbar segmented switching and interconnection, and the operation method of the I-section busbar with the II-section busbar;

[0046] Figure 7 This is a diagram of the present invention regarding the segmented switching and interconnection of a 6kV bus and the operation method of a bus section II with a bus section I. DETAILED DESCRIPTION

[0047] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0048] A 6kV bus one-key switching operation method for a monitoring system includes a bus connection-to-section method and a bus section-to-connection method. The two methods each have two operating modes: operation of section I bus with section II bus and operation of section II bus with section I bus. By combining the synchronization condition judgment of a synchronization device with a 6kV bus one-key switching operation process, a process capable of automatically judging synchronization and automatically switching is designed according to required conditions and steps. Through the automatic judgment and automatic switching process, the 6kV bus one-key switching operation is realized, making the 6kV bus switching operation more convenient and safe.

[0049] In the above busbar connection and sectioning method, the steps of the operation method of busbar section I with busbar section II are as follows:

[0050] Step 1. After receiving the start command of the 6kV busbar interconnection transfer to section, and the operation method of busbar section I with busbar section II, check whether the operating conditions are met: there is no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are in the remote position; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are put into operation; the closing power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is open; the busbar interconnection switches of sections I and II are closed; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited;

[0051] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0052] Step 3.1: When the synchronization method is used, issue a command to close the busbar section II incoming switch. If the busbar section II incoming switch closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0053] After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0054] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0055] After completing step 4.2 and step 3.2, issue a command to close the busbar incoming switch of section II. If the busbar incoming switch of section II closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0056] In the above busbar connection and sectioning method, the operation steps of busbar section II with busbar section I are as follows:

[0057] Step 1. After receiving the start command of the 6kV busbar interconnection transfer to section, section II busbar with section I busbar operation method, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the section I and II busbar incoming line switches and the section I and II busbar interconnection switches are far away; the grounding switches of the section I and II busbar incoming line switches are in the open state; the section I and II busbar incoming line switches and the section I and II busbar interconnection switches have no protection action; the operation power of the section I and II busbar incoming line switches and the section I and II busbar interconnection switches are put into operation; the section I busbar incoming line switch is in the open state; the section II busbar incoming line switch is in the closed state; the section I and II busbar interconnection switches are in the closed state; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is issued and the operation method is exited;

[0058] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0059] Step 3.1: When the synchronization method is adopted, a command is issued to close the busbar incoming switch of section I. If the busbar incoming switch of section I closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0060] After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0061] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0062] After completing step 4.2 and step 3.2, issue a command to close the incoming switch of bus section I. If the incoming switch of bus section I closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0063] In the above busbar segmented transfer and connection, the operation method and steps of busbar segment I with busbar segment II are as follows:

[0064] Step 1. After receiving the start command of the 6kV busbar segment transfer and busbar section I with busbar section II operation method, check whether the operating conditions are met: there is no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II are in the remote position; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II are put into operation; the closing power of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is closed; the busbar connecting switches of sections I and II are open; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited;

[0065] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0066] Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0067] After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section II. If the busbar incoming switch of section II opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0068] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar section II incoming switch. If the busbar section II incoming switch is opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0069] After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the busbar connecting switches of sections I and II are closed normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0070] In the above busbar segmented transfer and connection, the operation method and steps of busbar section II with busbar section I are as follows:

[0071] Step 1. After receiving the start command of the 6kV busbar segment transfer and busbar section II with busbar section I operation method, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar section I and II connecting switches are far away; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar section I and II connecting switches; the operating power of the busbar section I and II incoming switches and the busbar section I and II connecting switches is put into operation; the closing power of the busbar section I and II incoming switches and the busbar section I and II connecting switches is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is closed; the busbar section I and II connecting switches are open; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited;

[0072] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0073] Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0074] After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0075] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0076] After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the busbar connecting switches of sections I and II are closed normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0077] Embodiment 1:

[0078] like Figures 1 to 7 As shown, the steps of the automatic operation method of the 6kV bus switching operation monitoring system include:

[0079] 1. Operation method of 6kV busbar interconnection to segmented busbar section I with busbar section II:

[0080] Step 1. After receiving the start command of the 6kV busbar interconnection method for switching to the segmented busbar section I with busbar section II, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are in the remote position; the grounding knife of the busbar section I and II incoming switches is in the open state; there is no protection action on the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II is put into operation; the closing power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is open; the busbar interconnection switches of sections I and II are closed. If satisfied, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0081] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0082] Step 3.1: When the synchronization method is used, issue a command to close the busbar section II incoming switch. If the busbar section II incoming switch closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0083] After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0084] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0085] After completing step 4.2 and step 3.2, issue a command to close the busbar incoming switch of section II. If the busbar incoming switch of section II closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0086] 2. Operation method of 6kV busbar interconnection to section II busbar with section I busbar:

[0087] Step 1. After receiving the start command of the 6kV busbar interconnection method for switching to the segmented busbar of the Ⅱ-segment busbar with the Ⅰ-segment busbar operation, check whether the operating conditions are met: there is no abnormality in the synchronization device; the control handles of the Ⅰ and Ⅱ busbar incoming line switches and the Ⅰ and Ⅱ busbar interconnection switches are in the remote position; the Ⅰ and Ⅱ busbar incoming line switches are in the open state; the Ⅰ and Ⅱ busbar incoming line switches and the Ⅰ and Ⅱ busbar interconnection switches have no protection action; the Ⅰ and Ⅱ busbar incoming line switches and the Ⅰ and Ⅱ busbar interconnection switches have the power supply put in; the Ⅰ and Ⅱ busbar incoming line switches and the Ⅰ and Ⅱ busbar interconnection switches have the power supply put in; the Ⅰ busbar incoming line switch is in the open state; the Ⅱ busbar incoming line switch is in the closed state; the Ⅰ and Ⅱ busbar interconnection switches are in the closed state. If satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is issued and the operation method is exited;

[0088] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0089] Step 3.1: When the synchronization method is adopted, a command is issued to close the busbar incoming switch of section I. If the busbar incoming switch of section I closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0090] After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0091] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0092] After completing step 4.2 and step 3.2, issue a command to close the incoming switch of bus section I. If the incoming switch of bus section I closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0093] 3. Operation method of 6kV busbar segmented transfer to interconnection busbar segment I with busbar segment II:

[0094] Step 1. After receiving the start command of the 6kV busbar segmentation and interconnection method of busbar section I with busbar section II, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are in the remote position; the grounding knife of the busbar section I and II incoming switches is in the open state; there is no protection action on the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II is put into operation; the closing power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is closed; the busbar interconnection switches of sections I and II are open. If satisfied, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0095] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0096] Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0097] After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section II. If the busbar incoming switch of section II opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0098] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar section II incoming switch. If the busbar section II incoming switch is opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0099] After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the busbar connecting switches of sections I and II are closed normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

[0100] 4. Operation method of 6kV busbar segmented transfer to interconnection busbar segment II with busbar segment I:

[0101] Step 1. After receiving the start command of the 6kV busbar segmentation to interconnect busbar section II with busbar section I, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of busbar section I and II incoming switches and busbar interconnecting switches are far away; the grounding switches of busbar section I and II are in the open state; there is no protection action of busbar section I and II incoming switches and busbar interconnecting switches; the operating power of busbar section I and II incoming switches and busbar interconnecting switches is put into operation; the closing power of busbar section I and II incoming switches and busbar interconnecting switches is put into operation; the incoming switch of busbar section I is closed; the incoming switch of busbar section II is closed; the busbar interconnecting switches of busbar section I and II are open. If satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is issued and the operation method is exited;

[0102] Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step.

[0103] Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0104] After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited;

[0105] Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited;

[0106] After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the busbar connecting switches of sections I and II are closed normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

Claims

1. A 6kV busbar one-key switching operation method for a monitoring system, characterized in that: It includes two methods: busbar connection to section method and busbar section to connection method. Both methods have two operation modes: busbar section I with busbar section II and busbar section II with busbar section I. By combining the synchronization conditions judged by the synchronization device with the busbar one-key switching operation process, the synchronization is automatically judged and the switching is automatically carried out according to the required conditions and steps, thus realizing the busbar one-key switching operation; In the busbar connection and segmentation method, the steps of the operation method of busbar segment I with busbar segment II are as follows: Step 1. After receiving the start command of the 6kV busbar interconnection transfer to section, and the operation method of busbar section I with busbar section II, check whether the operating conditions are met: there is no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are in the remote position; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II are put into operation; the closing power of the busbar section I and II incoming switches and the busbar interconnection switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is open; the busbar interconnection switches of sections I and II are closed; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited; Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step. Step 3.1: When the synchronization method is used, issue a command to close the busbar section II incoming switch. If the busbar section II incoming switch closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited; Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After step 4.2 and step 3.2 are completed, a command is issued to close the busbar incoming switch of section II. If the busbar incoming switch of section II closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited. In the busbar connection and segmentation method, the operation steps of busbar segment II with busbar segment I are as follows: Step 1. After receiving the start command of the 6kV busbar interconnection transfer to section, section II busbar with section I busbar operation method, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the section I and II busbar incoming line switches and the section I and II busbar interconnection switches are far away; the grounding switches of the section I and II busbar incoming line switches are in the open state; the section I and II busbar incoming line switches and the section I and II busbar interconnection switches have no protection action; the operation power of the section I and II busbar incoming line switches and the section I and II busbar interconnection switches are put into operation; the section I busbar incoming line switch is in the open state; the section II busbar incoming line switch is in the closed state; the section I and II busbar interconnection switches are in the closed state; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is issued and the operation method is exited; Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step. Step 3.1: When the synchronization method is adopted, a command is issued to close the busbar incoming switch of section I. If the busbar incoming switch of section I closes normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After step 4.1 and step 3.1 are completed, an order is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited; Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar tie switches of sections I and II. If the busbar tie switches of sections I and II are opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After completing step 4.2 and step 3.2, issue a command to close the incoming switch of bus section I. If the incoming switch of bus section I closes normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

2. According to the one-key switching operation method for a 6kV busbar in a monitoring system as described in claim 1, it is characterized in that: In the above busbar segmented switching, the operation method of busbar segment I with busbar segment II is as follows: Step 1. After receiving the start command of the 6kV busbar segment transfer and busbar section I with busbar section II operation method, check whether the operating conditions are met: there is no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II are in the remote position; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II; the operating power of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II are put into operation; the closing power of the busbar section I and II incoming switches and the busbar connecting switches of sections I and II is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is closed; the busbar connecting switches of sections I and II are open; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited; Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step. Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section II. If the busbar incoming switch of section II opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited; Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar section II incoming switch. If the busbar section II incoming switch is opened normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the closing of the busbar connecting switches of sections I and II is normal within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

3. According to the one-key switching operation method of a 6kV busbar for a monitoring system as described in claim 1, it is characterized in that: In the above-mentioned busbar segmented switching, the operation method of busbar segment II with busbar segment I is as follows: Step 1. After receiving the start command of the 6kV busbar segment transfer and busbar section II with busbar section I operation method, check whether the operating conditions are met: no abnormality in the synchronization device; the control handles of the busbar section I and II incoming switches and the busbar section I and II connecting switches are far away; the grounding switches of the busbar section I and II incoming switches are in the open state; there is no protection action of the busbar section I and II incoming switches and the busbar section I and II connecting switches; the operating power of the busbar section I and II incoming switches and the busbar section I and II connecting switches is put into operation; the closing power of the busbar section I and II incoming switches and the busbar section I and II connecting switches is put into operation; the busbar section I incoming switch is closed; the busbar section II incoming switch is closed; the busbar section I and II connecting switches are open; if satisfied, the operation method proceeds to the next step; if not satisfied, an alarm is given and the operation method is exited; Step 2: The synchronization device determines whether the synchronization conditions are met according to the voltage amplitude, voltage phase, and frequency collected by the voltage transformer. If so, the operation method adopts the synchronization method to proceed to the next step. If not, the operation method adopts the asynchronous method to proceed to the next step. Step 3.1: When the synchronization method is adopted, an order is issued to close the busbar tie switches of sections I and II. If the closing of the busbar tie switches of sections I and II is normal within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After step 4.1 and step 3.1 are completed, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited; Step 3.2: When the asynchronous method is adopted, a command is issued to open the busbar incoming switch of section I. If the busbar incoming switch of section I opens normally within 1 minute and no fault is reported, the operation method proceeds to the next step. If not satisfied, an alarm is issued and the operation method is exited; After step 4.2 and step 3.2 are completed, an order is issued to close the busbar connecting switches of sections I and II. If the closing of the busbar connecting switches of sections I and II is normal within 1 minute and no fault is reported, the operation method ends. If not satisfied, an alarm is issued and the operation method is exited.

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