Electrical equipment switching operation ticket system - Solutions - Huaqiang Electronic Network

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In the case of all power outages or partial power outages, an operating ticket system must be implemented. This system is an important guarantee for personal safety and correct operation.
1. The contents of the operation ticket fill in the date of the operation ticket, the operation ticket number, the sender, the person receiving, the ordering time, the operation start time, the operation end time, the operation task, the operation sequence, the operation item, the operator, the guardian and the remark Wait.
2. Fill in the specific requirements of the operation ticket. A. The operation of the switchover of the substation should be filled out.
B. Filling in the operation ticket must be based on the order or permission. The order of the order is written and spoken. Written order--work ticket; verbal order--can be issued by the person in charge of the person in person to the watchman, or by telephone communication (requires recording); after the person has to re-receive the oral order received, after confirmation, The ordered time will be filled in the duty record book; the operation ticket will be filled in by the attendant.
C. The operation ticket should be filled in with a pen or a ballpoint pen. The face should be clear and tidy. Do not arbitrarily change it. Fill in the operation sequence. It is forbidden to fill in with a pencil.
D. The operation tickets should be numbered first and used in the order of numbers.
3. Fill in the operation ticket with the following main items a and pull-in switch;
b. Inspection after pulling the switch;
c, pull the knife gate;
d. Inspection after pulling the knife gate;
e. Perform electricity inspection before hanging the ground wire;
f. Hang up the grounding wire;
g, loading the fuse (fuse);
h. Check the power supply, voltage, etc.
4. The operation ticket is filled in and the contents of the inspection item A are filled in clearly according to the operation sequence in the technical requirements, such as: open ×××, close ×××.
B. Check whether the temporary grounding wire is removed. For example, remove the grounding wire at ×××.
C. If there is a power outage, check that there is no voltage in the equipment or line that needs to hang the temporary grounding wire.
D. Before sending power to a certain circuit, first check that all high-voltage circuit breakers (or automatic switches) are in the disconnected position. For example: check × × × is indeed in the disconnected position.
E. The high voltage circuit breaker, high voltage isolating switch, automatic switch and knife switch should be opened to check the actual disconnection position. For example: check × × × is indeed in the disconnected position.
F. Close the high-voltage circuit breaker, high-voltage isolating switch, automatic switch, knife switch, and check the correct closing position. Such as: check × × × is indeed in the closing position.
G. Check the load distribution when paralleling, unpacking, closing, and unringing operations.
H. After the isolation switch of the voltage transformer is closed, check that the voltage indication is correct.
I. Remove or install a control loop and voltage transformer first and second side fuses, and also fill in the operation ticket.
J. When the relay protection device is deactivated or put into operation and the setting value is changed, the contents should be filled in the operation ticket.
K, the operation items that do not need to operate the ticket: accident handling, single operation of the pull-in switch, pull the grounding knife or remove the only set of grounding wires.
5. In the event of a doubt in the operation of the operation, the operation should be stopped immediately, and the dispatcher or the person in charge of the electric report should report to the shift dispatcher or the electric person in charge, and then operate the operation, and the operation ticket cannot be changed without authorization.
The terminating operation term (1) is the person who sends out the operation task or command, usually issued by the dispatcher, and sometimes issued by the electric person in charge. Published tasks or orders may be written or verbally, important operations and should be recorded.
(2) Acceptance: A person who accepts an operational task or order is generally ordered by the duty officer. The order should be serious and serious, and should respond to the rehearsal operation tasks or orders, and the order of the operation tickets should be repeated.
(3) Guardian: The person performing the work guardianship task may be served by the shift supervisor or the duty attendant.
(4) Operator: The person who performs the operation directly, usually by the deputy officer.
(5) Ordering time: based on the time when the dispatching operation task or order is issued, the time to fill in should be accurate (to "hour", "minute"), and be filled by the recipient.
(6) Operation start time: The time when the operation is officially started (to "hour", "minute"), and the guardian fills in the operation ticket.
(7) Operation completed (end) time: the time at which the last step of the operation sequence is completed (to "hour", "minute"), which is also filled by the guardian.
(8) Operation sequence: The total order after the combination in the correct order of operations is sequentially filled in the operation ticket.
(9) Operational items: The specific content of each step of the operation sequence (including inspection, verification, and other work content that should be performed).
(10) Pulling open: refers to the operation of the splitting knife switch, the isolating switch, the load switch, the circuit breaker, the drop-out fuse, and the like.
(11) Opening position: After the high and low voltage electrical appliances are disconnected, the equipment should be in an open state.
(12) Closed: refers to the operation of closing the knife switch, the isolating switch, the load switch, the circuit breaker, the drop-out fuse, and the like.
(13) Closing position: that is, after the high and low voltage electrical appliances are closed, the device should be in an on state.
(14) Deactivation: Refers to the relay protection device or transformer exiting operation. The term "deactivation" in the operation ticket is often used exclusively for "reclosing device" and the like.
(15) Input: Corresponding to the term “decommissioning”, it means that the relay protection device or transformer is put into operation (such as “reclosing device”, overcurrent and quick-break protection).
(16) Reporting: that is, the reading of numbers. The pronunciation of the numbers is listed below (the meaning of the pronunciation in brackets), which should normally be used for both the command and the reclamation commands during operation. Usually read 0-nine as: zero (0) 幺 (1), two (two), three (three), four (four), five (five), six (six), abrupt (seven), eight (eight ), nine (nine).
(17) Removal: Specifically refers to the operation of the fuse fuse tube removed. It can also be called "take off" or "take down".
(18) Mounting: Specifically refers to the operation of the fuse fuse tube installed in the fuse. It can also be called "hanging" or "putting on".
(19) Disconnect: It is often used for components such as “brake stop plate” and “terminal block”. When it is necessary to cut off a component secondary circuit during operation, the component can be disconnected.
(20) On: Contrary to the word "disconnected".
The switching operation is an operating procedure (sequence) established for the operation of inserting or withdrawing the device according to the functions and functions of various electrical devices in the power system and the power supply and distribution system under the premise of scientific laws. This kind of operation procedure has both scientific basis and objective law. According to these procedures, the system can operate safely and stably, otherwise it will violate the objective law and cause an accident. For example, the function of the isolating switch (also called the isolating knife) in a power supply circuit is to cause a significant breaking point after the power failure. The function of the circuit breaker is to open, close the load current or cut off the short circuit current. Therefore, there are the following provisions:
1. The sequence of power transmission operation for the circuit that has been powered off is: first, remove the three-phase short-circuit grounding wire, the second step is to close the isolating switch on the front and rear sides of the circuit breaker, and the third step is to close the circuit breaker. If, in turn, the circuit breaker is first closed, and the circuit breaker is closed later, the isolation knife opens an arc due to a large load current at the moment of closing, causing a three-phase short circuit. If the first step does not cancel the short circuit ground wire, it will be sent. Electricity will also cause a three-phase short circuit accident.
2. The sequence of power failure operation for the circuit that sends power failure is: first step, disconnect the breaker, second step, open the isolation knife gate on both sides, and the third step, hang the three-phase short-circuit grounding wire to the power-off line. If it is reversed, it will also cause a short circuit accident.