How to write a report on the common faults of traction power supply system to open the topic

Traction substation is the reliable power of the traction power supply system, traction substation failure, forcing the interruption of the line or the decline in transport capacity, directly affecting the production of transportation, in order to be able to deal with the accident as soon as possible after the occurrence of an accident to restore power delivery. According to the brother station section of more than twenty years of operating experience, combined with the characteristics of the Xikang line, now develops a substation all kinds of fault judgment and emergency treatment program. Hope that each combined with the actual situation on the spot, compared with the implementation! First, the principle of fault handling 1, fault handling and accident repair, to follow? First pass after the restoration? The principle. Standby equipment, first consider the first cast standby, using simple, easy, correct, feasible program, calm, cool, rapid, decisive treatment and accident repair, the fastest possible way to send power first. Then notify the relevant departments to repair or replace the faulty equipment to restore normal operation. 2, fault handling and accident repair, by the duty officer or the director of the accident as the commander-in-chief, and the rest of the personnel as a member of the group, obey the command. Commander should briefly explain to the group before dealing with the accident repair program, the rest of the personnel have different opinions, can be put forward on the spot, the commander may be appropriate consideration. Second, the general method of fault judgment steps 1, the general method: Xikang line main switch casting and withdrawal for remote operation, and the main transformer, the main circuit breaker feeder switch for 100% standby. Therefore, the substation duty personnel are required to comprehensively analyze and judge according to the indication meter, light display, accident report form, as well as equipment inspection, appearance, etc. 2, general steps (1), according to the position of the circuit breaker indicator, to determine which circuit breaker is tripped. (2), according to the relay protection device action indicator display, or signaling relay drop sign and accident report form to determine which equipment which set of protection action. (3) According to the accident report form and the scope of relay protection, deduce the scope of the fault, and make it clear whether it is a fault within the premises or outside the premises. (4), combined with the appearance of the equipment inspection to determine whether the faulty equipment needs to be withdrawn, otherwise put into standby equipment. Third, the common faults of the emergency treatment program 1, feeder automatic tripping, and reclosing successfully if the substation a feeder switch tripped and reclosing successfully, can be carried out in the following order: 1.1 Confirmation of tripping circuit breaker and various signals. (1) Confirm which switch is tripped. (2) Confirm the switch tripping time. (3) Confirm which circuit breaker is tripped, which protection is operated, whether reclosing is activated or not, the fault detector, short-circuit current, and the number of kilometers indicated by the fault detector (reporting is based on the fault detector report form, and the report form of Type 63 protection can be used as a reference).1.2 Report to the power supply dispatch, and execute according to the order of the ESC.1.3 Revert to the other signals.1.4 Patrol the related equipment, and make records of the relevant conditions.1.5 Report the tripping to the section production dispatch in time, and execute according to the relevant regulations.1.5 Report the tripping to the section production dispatch in time. Timely report the tripping record to the production dispatching of the section. 2, feeder automatic tripping and reclosing failure (or reclosing gate did not start): 2.1 according to 1.1 implementation. 2.2 truthfully report to the power supply scheduling, and to explain whether the reclosing failure, or reclosing gate did not start, seriously and strictly implement the ESC order, and restore the corresponding signal. 2.3 according to the ESC order, according to the signaling prompts and the failure of the current, as well as the equipment inspection, correctly and quickly determine whether the fault is within the premises, and to ensure that the fault is not a problem, and to ensure the correct and timely implementation. 2.3 According to the ESC order, based on the signal prompt and fault current, as well as the equipment inspection situation, correctly and quickly determine whether it is a fault within the house or outside the house, and promptly report to the power supply dispatching and section production dispatching. 2.4 If it is a fault outside the house, make all the preparations to put on and deliver the power at any time, strictly implement the ESC order, and monitor the instrument carefully. 2.5 If it is a fault of the primary equipment within the house, according to the relevant regulations, according to the specific actual situation, make the concrete temporary treatment program, and after the ESC agreement, it can be implemented. Only after agreeing, can it be implemented. If there is spare equipment and the accident is difficult to deal with for a while, the first consideration should be to remove the accident equipment and put it into the spare equipment, so that the power supply can be resumed as soon as possible. 2.6 If it is the failure of the secondary equipment in the institute and the failure is difficult to be dealt with or found for a while, according to the actual situation of the section, the switch is now 100% spare and the protection is 100% spare, so that the original faulty equipment and the related protection can be removed and put into the spare system and the corresponding protection, and the power supply will be quickly restored. 2.7 If the reclosing gate is not activated, report to the power supply dispatching, inspect the equipment related to the tripped feeder and report to the power supply dispatching after it is normal. Under the command of power supply dispatching, execute the order of strong transmission, and pay attention to monitor the meter to confirm whether it is a permanent fault or instantaneous fault, if it is a permanent fault, then execute according to 2.1~2.6. If it is an instantaneous fault, it will be executed according to 2.1. 2.8 After resuming power delivery, inspect the equipment and make a record of the relevant situation. 2.9 Report the relevant situation to the section production scheduling. 3. Contingency Measures for Feeder Breaker FailureFeeder breaker, refusing to act or mis-activating. 3.1 Check the relevant secondary equipment, whether the protection and signaling circuits are normal or not, and whether there are any shorts and grounding phenomena. 3.2 Check the DC system, whether the voltage is stable or not. 3.2 Check the DC system, whether the voltage is stable, whether the insulation is good, and whether there is any grounding phenomenon. 3.3 Confirm whether there is misoperation when the switch is operated or whether there is any fault in the line when it is operated correctly. 3.4 Under the normal conditions of 3.1, 3.2, and 3.3, the circuit breaker is considered to be faulty only. 3.5 In case of failing to eliminate the fault in a short period of time, apply for the power supply dispatching, and with the consent of the power supply dispatching, then the faulty circuit breaker and the related equipment and protection devices can be removed and the corresponding equipment and protection devices can be unplugged. and protection devices, and pull out the corresponding insurance, send another spare circuit breaker and protection, auxiliary equipment to change the mode of operation, and quickly restore power supply. 3.6 After sending power, inspect the equipment and make records of the relevant situation. 3.7 Report the accident situation to the section scheduling and the relevant unit. 4. 110KV oil less circuit breaker failure emergency measures 4.1 According to the order of the ESC to close 110KV oil less circuit breaker, the It is found that burnt closing coil, closing insurance or even breakdown of insurance base, causing DC grounding, giving DC grounding signal.4.2 Abnormalities of hydraulic operating mechanism pumping device, pressure can not be maintained, and oil seepage from hydraulic mechanism can not ensure the closing of circuit breaker.4.3 If the above two situations occur, it should immediately report to the power supply dispatching and apply for change of operation mode, and with the consent of the power supplying dispatching, according to the relevant inverted gate operation procedure Remove the accident circuit breaker and protection device, and pull out the corresponding insurance. Before feeding another main transformer and circuit breakers, the protective devices and corresponding insurance must be checked to see if they are in good condition, and then the circuit breakers should be inverted in strict accordance with the orders of the power supply dispatch and the inverting procedure, so that power feed can be resumed as soon as possible. 5. Emergency treatment of feeder disconnecting switches in case of accidents. 5.1 In case of overheating, heating, reddening, or welding of the contact part, report the case promptly to the power supply dispatch, and according to the specific situation, take temporary treatment after power failure. 5.2 Feeder disconnecting switch burned off at the lead, should promptly report the accident overview to the power supply dispatching, agreed by the power supply dispatching, under the premise of good safety measures, use the same type (or the same current-carrying capacity) of wire and wire clips to connect the burned off, and send power as soon as possible. Replace the whole lead when there is an outage point. 5.3 If the electric operation of the feeder disconnecting switch is out of order, set the changeover switch on the panel to the individual position and the switch of the operating mechanism box to the manual position for manual operation and report the details to the power supply dispatching and the section production scheduling, and deal with it accordingly in the event of a power failure. 5.4 In case of breakage of the ceramic column of the disconnecting switch, cracks, serious discharges or explosions, according to the specific conditions of the equipment, if the discharge is not serious, it can be temporarily disconnected from the power supply. If the discharge is not serious, the power can be temporarily suspended, and inspection and observation must be strengthened. And report to the power supply scheduling and segment production scheduling, ready for repair at any time, such as power outages, replacement processing, if the discharge is serious caused by direct grounding, you must explain the situation to the power supply scheduling and segment production scheduling, the power supply scheduling agreed to the premise of the safety measures, the explosion will be removed from the porcelain column. And the two leads with wire clips in accordance with the provisions of the connection together, as soon as possible power supply. Strengthen the inspection, observation and other blackout points and then replace, restore normal operation. 6, and complementary capacitor compensation device failure. 6.1 and complementary capacitor protection action, a variety of signals show normal, to the power supply scheduling to report the specific situation, if not the device itself caused by tripping is immediately put into the and complementary, if the device itself caused by tripping is to the power supply scheduling application by the power supply dispatching agreed to remove and complementary devices, and according to the signal display to find the cause and deal with. Then, according to the order of ESC, remove the circuit breaker of the faulty through-wall casing and take safety measures to replace the through-wall casing, so as to make the equipment reach the normal operation mode as soon as possible; if it is impossible to do so, consider pulling out the circuit breaker trolley of the inlet or feeder line where the faulty through-wall casing is located and disconnecting the isolation switches connected to it, so as to make the pierced through-wall casing in isolation; under the premise of taking good safety measures, according to the actual situation, the through-wall casing is isolated from the two power supply lines which are separated from each other by the power supply line. Under the premise of proper safety measures, according to the actual situation, the two power supply lines from the two power supply lines are close to each other and easy to connect the two power supply lines short, the first power supply, such as power outage points in the replacement of the wall casing, to restore the equipment operating state. 8, high-voltage room hard busbar support insulator breakdown 8.1 high-voltage indoor support insulators due to surface contamination, cracks, glaze aging, etc., so that the insulation is reduced to cause the insulation pieces of the insulation flashover, if it is a slight discharge, flashover, should be cleaned on the surface or coated with fast-drying silicone resin. Coated with fast-drying silicone resin. To improve its insulation level, and then, with the consent of the power supply scheduling can be strongly sent, and strengthen the equipment patrol, observation. 8.2 If the bus support vase due to misoperation or due to moisture, wet flash serious burns or explosion, should not affect the bus and the grounding part of the conditions of the safety distance between the insulating parts of the serious burns or explosions, to resume power delivery as soon as possible to strengthen the patrol, such as outage point, and then install the support vase to restore normal operation. 8.3 If the indoor disconnecting switch support vase is seriously burnt or exploded, under the condition that the distance between the charged part of the switch and the grounding part is not affected, the seriously burnt insulating parts shall be smashed off, the switch shall be made in good contact manually, and the power supply shall be resumed. Wait until conditions permit before applying for power outage processing. And strengthen the inspection. 8.4 No matter which reason, must report truthfully to the power supply dispatching and segment production scheduling, and keep in touch at any time. 9, DC system failure 9.1 Battery pack failure: should be the first to withdraw the battery pack out of operation, the use of the charger independent power supply to the DC bus. The duty officer must explain the situation to the power supply scheduling and section production scheduling, quickly find out the reason, and deal with it accordingly, and then put the battery group into operation immediately to restore the normal floating charging state. During this period, the duty officer strengthens the inspection and detection, and understands clearly that this is an abnormal operation state, and once the AC voltage loss occurs, all kinds of signals can't be displayed, and the fault printing can't be carried out. If there is a short circuit in the near point of the substation, resulting in DC bus voltage is too low, the switch refuses to move, the duty officer should quickly use manual, the feeder switch disconnect. 9.2 AC self-power system failure or loss of voltage: AC self-power system failure or loss of voltage, the silicon rectifier charging device will be lost and can not work, then this time can not be charged to the battery, from the battery group completely bear the load on the DC bus, the duty officer should be By adjusting the battery voltage adjustment handle position to maintain the DC bus level. Safety 1, all operations must have power supply scheduling orders, it is strictly prohibited to operate without orders, speculation. 2, all operations should be done to ensure the safety of life and normal operation of the equipment. 3, in the process of operation, if found in crisis of personal safety and equipment safety, should be decisive to interrupt the operation before reporting to the power supply scheduling. 4, in the case of equipment abnormalities, the duty officer should strengthen the equipment patrol, carefully and carefully monitor the various types of instrumentation. Carefully monitor the various types of meters, and signal display, if found new problems timely reporting, timely processing. 5, the accident situation may not be as a single, the Institute should be based on the specific circumstances of the reference to the implementation of the avoidance of rigid application.