Operation development and management of the hottes

2022-09-23
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The operation development and management of substation

doing a good job in the operation management of substation is an important guarantee for realizing safe, reliable, economic and reasonable power supply. Therefore, the substation must be equipped with operating rules and regulations that are consistent with the actual situation on site, which should be studied and strictly observed by the personnel on duty to ensure safe production

I. operation system

1 Shift handover system

shift handover must be carried out seriously. The shift handover personnel shall perform the shift handover procedures in strict accordance with the regulations. The specific contents and requirements are as follows

(1) the shift handover personnel should fill in all records in detail and do a good job in environmental sanitation; In case of operation or work tasks, take the initiative to prepare for going off duty

(2) the shift handover personnel should make a detailed introduction to the following situations: 1 Equipment operation mode, modification, equipment defects, accident handling, superior notice and other related matters under its jurisdiction; 2. Whether tools and instruments, spare parts, keys, etc. are complete

(3) the successor shall carefully listen to the handover content and check whether the simulation diagram is consistent with the on-site operation mode. After the handover, both parties shall sign on the shift handover record book

(4) switching operation and permit work should be avoided as far as possible during shift handover. When an accident or abnormal operation occurs during the handover, the handover must be stopped immediately. In principle, the handover personnel should be responsible for handling it, and the successor should actively assist in handling it. When the accident handling is over, continue to handle the shift handover procedures

(5) if the successor is drunk or insane, the person who takes over the shift should refuse to hand over, and quickly report to the superior leadership to make appropriate arrangements

2. Patrol inspection system

in order to master and monitor the operation status of the equipment and find abnormalities and defects in time, regular and special patrol inspection systems should be carried out for the operating and standby equipment in the Institute, and they should be constantly revised and improved in practice

(1) patrol cycle. The substation on duty shall be inspected once every hour, the unattended substation shall be inspected at least once every four hours, and the workshop substation shall be inspected once every shift. Special patrol inspection shall be carried out as required

(2) regularly inspect items

1) whether the oil level of the oil filling equipment is appropriate, whether the oil color is clear, and whether there is leakage

2) whether the porcelain insulator is broken and discharged

3) whether there is overheating at each connection point

4) whether the sound and temperature of transformer and rotating motor are normal

5) whether the cooling device of the transformer operates normally

6) whether the capacitor has abnormal sound and whether the shell has deformation and expansion

7) whether the power cable terminal box has oil leakage

8) whether various signal indications are normal, and whether the positions of circuit breakers and disconnectors of secondary circuits are correct

9) whether the pressing plate position of relay protection and automatic device is correct

10) whether the instrument indication is normal and whether the pointer is bent or blocked; Whether the watt hour meter stops or reverses

11) whether the DC bus voltage and floating charge current are appropriate

12) whether the liquid level of the battery is appropriate, whether the color of the electrode plate is normal, and whether there is salt, bending, fracture, bubble expansion and local short circuit

13) whether the equipment defects have developed

(3) special patrol items

1) before the gale comes, check the surrounding debris through the park, scope, chain and intensification to prevent debris from blowing onto the equipment; In case of strong wind, pay attention to whether the distance between phases and the ground is too small after the wind deviation of outdoor flexible conductor

2) after lightning, the inspection is mainly divided into three stages to reduce the weight of the car year by year. Check whether the porcelain insulation has discharge traces, whether the arrester and lightning rod discharge, and whether the lightning counter acts

3) in fog, rain, snow and other weather, pay attention to observe the discharge of porcelain insulation

4) under heavy load, check whether the contact and connector are overheated

5) in case of abnormal operation, check the voltage, current and relay protection action

6) turn off the light at night and inspect the porcelain insulation for discharge flashover and overheating at the connection point. E. continue the test fixture to increase the red phenomenon

(4) safety regulations to be observed during patrol inspection

1) the inspection of high-voltage power distribution devices should generally be carried out by two people together, and the personnel who have passed the examination and approved by the unit leader are allowed to inspect the high-voltage equipment alone. When inspecting the power distribution device and entering or leaving the high-voltage room, the door must be closed

2) when patrolling high-voltage equipment, do not move or cross the barrier, and do not carry out any operation; If it is necessary to move the barrier, a supervisor must be present and maintain the following safety distance:

10kv and below 0.7m

35kv 1m

3) when the conductive part of the high-voltage equipment has a grounding fault, it is not allowed to approach the fault point within 4m indoors and 8m outdoors. Personnel entering the above scope must wear insulating boots and insulating gloves when contacting the shell and framework of the equipment

3. Equipment defect management system

ensuring that the equipment is often in good technical condition is one of the important links to ensure safe operation. In order to fully grasp the health status of the equipment, the defects of the equipment should be eliminated as soon as possible when they are found, and efforts should be made to prevent them before they happen. At the same time, it is also the basis for arranging the work plan of equipment maintenance and test. The following equipment defect management system must be carefully implemented

(1) all electrical equipment of various voltage levels that have been put into operation or standby, including electrical primary and secondary circuit equipment, lightning protection devices, communication equipment, power distribution device framework and house buildings, are within the scope of equipment defect management

(2) according to the degree of threat to the safety of power supply and consumption, defects can be divided into three categories: class I defects are emergency defects, which refer to those who may cause personal casualties, large-scale power outages, main equipment damage or power outages with political impact. This defect is serious in nature and in critical condition, and must be dealt with immediately;? Class II defects are major defects, which means that the equipment can continue to operate, but the situation is serious, which has affected the output of the equipment and can not meet the needs of the normal operation of the system, or accidents will occur in the short term, threatening the safe operators;? Class III defects are general defects, which are general in nature and mild in condition, do not endanger safe operation temporarily, and can be listed in the plan for treatment

after the defect is found, the cause of the defect should be carefully analyzed and handled according to its nature and situation. After finding emergency defects, try to cut off power immediately for treatment. At the same time, report to the electrical principal of the unit and the dispatcher of the power supply bureau. When major defects are found, they should be reported to the electrical person in charge and handled as soon as possible; If it cannot be handled immediately, be sure to arrange a plan to handle it within a week. After general defects are found, they should be actively handled regardless of whether they affect safety. For defects that are difficult to handle by themselves, they should be reported to the electrical person in charge and included in the planned maintenance for elimination. Any defect found and eliminated shall be recorded in the defect record book timely and correctly. The main contents of defect records shall include: equipment name and number, main situation of defects, classification and attribution of defects, name and date of discoverer, treatment plan, treatment results, name and date of processor, etc. The electrical person in charge shall convene relevant personnel to meet regularly (quarterly or half a year) to analyze and study the causes of equipment defects, the law of development, the best treatment methods and preventive measures, so as to continuously improve the operation and management level

4. The regular test switching system of the substation

(1) in order to ensure the integrity of the equipment and that the standby equipment can really play a standby role when necessary, the standby equipment, as well as the DC power supply, accident lighting, fire-fighting facilities, standby power switching devices, etc., must be regularly tested and switched

(2) each unit should formulate the items, requirements and cycles of regular test switching according to its own equipment conditions, and specify the executor and guardian, which can be implemented after being approved by the leader

(3) for the switching test that has a great impact on the operating equipment, the accident prediction and safety countermeasures should be made, and the test switching results should be recorded in the special record book in time

5. The practice of operation analysis system has proved that the formulation and implementation of operation analysis system plays a very important role in improving the level of operation management and safe power supply and consumption. Therefore, all units should constantly revise and improve according to their specific conditions

(1) regularly hold operation work analysis meetings every month or quarter

(2) the contents of the operation analysis should include: the management of the system, the implementation of the system, the implementation of the system, and the implementation of the system? Cause analysis and preventive measures of equipment defects;? Cause analysis of accidents (or failures) of main electrical equipment and auxiliary equipment;? Put forward targeted anti accident measures Summarize the advanced methods of defect occurrence and defect treatment;? Analyze the safety, reliability, flexibility, economy and rationality of the operation mode;? Analyze the sensitivity, accuracy and reliability of relay protection device action

(3) detailed records shall be made for each operation analysis for future reference

(4) the rectification measures shall be implemented item by item within a time limit

6. Site environmental management system

(1) adhere to civilized production, regularly clean and tidy up, and often keep the site environment clean, tidy and beautiful

(2) the fire-fighting facilities should be fixed in a convenient location

(3) the equipment operation channel and inspection aisle must be unobstructed at any time, and it is strictly prohibited to stack sundries

(4) the control room, switch room, capacitor room, battery room and other buildings should be maintained regularly to meet the requirements of "four prevention and one connection" (fire prevention, rain and snow prevention, flood prevention, prevention of small animal invasion and good ventilation)

(5) the cover plate of cable trench shall be intact; There shall be no ponding in the cable trench

(6) weeds should be removed frequently outdoors. It is strictly forbidden to cultivate tall or climbing plants in the equipment area. If it is necessary for greening, shrubs should be preferred, and they should be pruned frequently

(7) motor vehicles (such as lifting cranes) must be approved by the electrical director, and can only drive into the substation area after Vice Mayor Chen Biao delivers a speech. Safety measures shall be implemented before operation, and sufficient safety distance shall always be kept from the electrified part of the equipment during operation, and special personnel shall be assigned for supervision

II. Technical management

technical management is an important aspect of substation management. Through technical management, operators can have rules to follow, and it is convenient to accumulate data and analyze operation accidents, which is conducive to improving the technical management level of operators and ensuring the safe operation of equipment. Technical management should do the following work well

1. Collect and establish equipment archives

(1) original data, such as substation design documents (including electrical and civil facilities), design product specifications, acceptance records, starting schemes and existing problems

(2) primary and secondary wiring and professional data (including deployment drawing, panel layout drawing, wiring diagram, relay protection device setting book, etc.)

(3) equipment account (including equipment specification and performance, etc.)

(4) equipment maintenance report, test report, relay protection inspection report

(5) simplified test report and chromatographic analysis report of insulating oil

(6) load data

(7) equipment defect records and analysis data

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