2.3.1 The switching operation must be carried out in accordance with the instructions of the on-duty dispatcher or the person in charge of the operation duty, and must be carried out after the instructions are repeated correctly. Instructions should be issued accurately and clearly, using standardized scheduling terms and dual equipment names, that is, equipment names and numbers. The sender and the recipient should first report each other's units and names. Both parties should record and keep records of the entire process of issuing instructions (including the other party's recitation of the instructions) and listening to the report of the instructions. Operators (including guardians) should understand the purpose and sequence of operations. If you have any questions about the instructions, you should ask the sender for clarification before executing them. 2.3.2 The switching operation can be completed through local operation, remote control operation and program operation. Equipment for remote control operation and program operation must meet relevant technical conditions. 2.3.3 Classification of switching operations 2.3.3.1 Monitoring operation: two people perform the same operation. During monitoring operations, one person who is familiar with the equipment should supervise. Particularly important and complex switching operations must be performed by skilled operating personnel and supervised by the person in charge of the operation duty. 2.3.3.2 Single-person operation: An operation completed by one person. 1) When operating a substation with a single person on duty, the operator should fill in the operation ticket according to the operation instructions conveyed by the dispatcher over the phone and repeat them correctly. 2) Equipment, projects and operating personnel operated by a single person must be approved by the equipment operation management unit, and the personnel must pass a special assessment. 2.3.3.3 Maintenance personnel operations: operations completed by maintenance personnel. 1) Maintenance personnel of the enterprise who have passed the examination and been approved by the equipment operation management unit can perform monitoring operations for electrical equipment of 220kV and below from cooked standby to maintenance or from maintenance to hot standby. The guardians should be maintenance personnel of the same unit or Equipment operators. 2) The order receiving and issuing procedures and safety requirements for maintenance personnel to operate should be reviewed and approved by the chief engineer (technical person in charge) of the equipment operation management unit, and reported to relevant departments and dispatching agencies for filing. 2.3.4 Operation ticket 2.3.4.l The operator shall fill in the operation ticket for switching operation (see Appendix 1). 2.3.4.2 The operation ticket should be filled in item by item with a pen or ballpoint pen. The operation ticket issued by computer should be consistent with the handwritten format; the face of the operation ticket should be clear and tidy and should not be arbitrarily altered. The operator and guardian should check the filled-in operation items according to the simulation diagram or wiring diagram and sign respectively, and then the person in charge of the operation duty (the person in charge of the work when the maintenance personnel operate) will review and sign. Only one operation task can be filled in each operation ticket. 2.3.4.3 The following items must be filled in the operation ticket: 1) Equipment that should be closed [circuit breaker (switch), isolating switch (switch), grounding switch, etc.], electrical inspection, installation and removal of ground wires, installation or removal Control the fuse of the circuit or voltage transformer circuit, switch the protection circuit and automation device and check whether there is no voltage, etc.; 2) After closing the equipment [circuit breaker (switch), isolating switch (switch), grounding switch, etc.] Check the position of the equipment; 3) When performing stop and power supply operations, before pulling or closing the isolation switch (knife switch) or the handcart switch, check that the circuit breaker (switch) is indeed in the open position; 4 ) Before and after the load reversing or unloading or paralleling operation, check the relevant power supply operation and load distribution; 5) After equipment maintenance and before closing and transmitting power, check that the grounding switch within the power transmission range has been opened and the grounding wire has been removed. 2.3.4.4 The operation ticket should fill in the dual name of the equipment. 2.3.5 Basic conditions for switching operation 2.3.5.1 Have a primary system simulation diagram (including various electronic wiring diagrams) that is consistent with the on-site primary equipment and actual operation mode. 2.3.5.2 The operating equipment should have obvious signs, including: naming, number, opening and closing instructions, rotation direction, switching position instructions and equipment color, etc. 2.3.5.3 High-voltage electrical equipment should be equipped with complete locking devices to prevent misoperation. The anti-accidental locking device must not be withdrawn from operation at will. The deactivation of the anti-accidental locking device must be approved by the chief engineer of the unit; when the anti-accidental locking device is withdrawn for a short time, it must be approved by the substation director or the duty leader of the power plant, and it must be done as soon as possible according to the procedures. Invest.

2.3.5.4 There are instructions (standard operating terminology) formally issued by the duty dispatcher and the person in charge of the operation duty, and operation tickets that have been reviewed and qualified in advance are used. 2.3.5.5 Mechanical locks must be added in the following three situations: 1) The knife gate handle and the mesh door are not equipped with an anti-accidental locking device or the locking device is malfunctioning; 2) When the electrical equipment is in cold standby and the mesh door locking fails to function There are electric partition mesh doors; 3) During equipment maintenance, the operating handles of each power supply side knife gate in the circuit and the door of the electric operating knife gate mechanism box. Mechanical locks require one key to open each lock, and the keys must be numbered and properly kept. 2.3.6 Basic requirements for switching operation 2.3.6.1 The switching operation during power outage must be carried out in the order of circuit breaker (switch) - load side isolating switch (knife switch) - power supply side isolating switch (knife switch). The closing operation should be carried out in the reverse order of the above. It is strictly prohibited to pull and close the isolation switch (knife switch) with load. 2.3.6.2 Before starting the operation, a verification simulation preview should be carried out on the simulation diagram (or computer error prevention device, microcomputer monitoring device), and the operation can only be carried out after all errors are found. The name, number and location of the equipment should be checked before operation. During operation, the supervision and recitation system should be carefully implemented (one person must also sing loudly when operating), and the entire process should be recorded. During the operation, operations must be performed one by one in the order in which the operation ticket is filled out. After each step of operation, a "√" mark should be made after checking that it is correct, and rechecking should be carried out after all operations are completed. 2.3.6.3 When operating under supervision, the operator shall not perform any operation without the consent of the guardian. 2.3.6.4 If any doubt occurs during operation, the operation should be stopped immediately and reported to the dispatcher. The operation can only be carried out after further permission from the issuing authority. It is not allowed to change the operation ticket without authorization, and it is not allowed to release the locking device at will. The unlocking tool (key) must be sealed and kept. All operators and maintenance personnel are strictly prohibited from using the unlocking tool (key) without authorization. In special circumstances, the unlocking tool (key) must be approved by the duty dispatcher, duty leader or station leader before using the unlocking tool (key). Single-person operation and maintenance personnel are strictly prohibited from unlocking during the switching operation. If unlocking is needed, it must be processed after additional operating personnel are dispatched to the site and the approval procedures are completed. Unlocking tools (keys) should be sealed in time after use. 2.3.6.5 Insulating gloves should be worn when using an insulating rod to close the isolating switch (knife switch) or when closing the circuit breaker (switch) and isolating switch (knife switch) through the transmission mechanism. When operating outdoor high-voltage equipment on rainy days, the insulating rods should have rainproof covers and insulating boots should be worn. If the grounding grid resistance does not meet the requirements, you should also wear insulating boots on sunny days. During thunder and lightning, switching operations are generally not performed, and switching operations on the spot are prohibited. 2.3.6.6 When loading and unloading high-voltage fuses, you should wear goggles and insulating gloves, use insulating clamps if necessary, and stand on an insulating mat or platform. 2.3.6.7 The interrupting capacity of the circuit breaker (switch) should meet the requirements of the power grid. If the interrupting capacity is insufficient, the operating mechanism should be separated from the circuit breaker (switch) with a wall or metal plate, remote operation must be performed, and the reclosing device must be disabled. 2.3.6.8 After a power outage of electrical equipment (including accidental power outage), no one is allowed to touch the equipment or enter the barrier without opening the relevant isolation switch (switch) and taking safety measures to prevent sudden calls. 2.3.6.9 Climbing or pole-climbing operations are not allowed during single-person operation. 2.3.6.10 The position inspection after operation of electrical equipment should be based on the actual position of the equipment. When the actual position cannot be seen, the changes in the equipment's mechanical position indication, electrical indication, instruments and various telemetry and remote signaling signals can be used, and at least it should be Only when two or more instructions have corresponding changes at the same time can it be confirmed that the equipment is in place. 2.3.6.11 In the event of a personal electric shock accident, in order to rescue the person who was electrocuted, the power supply of the relevant equipment can be disconnected without permission, but the incident should be immediately reported to the dispatching and superior departments. 2.3.7 The following tasks do not require operation tickets: 1) Emergency handling of accidents; 2) Single operation of closing the circuit breaker (switch); 3) Opening or removing the only set of grounding knife switches in the entire station (factory) or Ground wire. The above operations should be recorded after completion, and the original records should be kept for emergency response.

2.3.8 Operation tickets for the same substation should be numbered consecutively in advance. Computer-generated operation tickets should be numbered continuously before the tickets are officially issued. Operation tickets should be used in the order of numbering. A voided operation ticket should be marked with the word "voided", an unexecuted operation ticket should be marked with the word "not executed", and an operation ticket that has been operated should be marked with the word "executed". Operation tickets should be kept for one year.