On the substation on the danger point in the operation and management and prevention methods

Paper Keywords: substation operation and management to prevent the danger point
Abstract: As China continues to accelerate the pace of socialist modernization construction, substation operation work has become an extremely important project of the current face of the substation after the operation and management of potential threats that we must do a comprehensive analysis. Thus, the attendant need to run in the substation of error to a minimum, so you can maintain the normal operation of the grid. On this point, this case concrete projects targeted to run on the existing substation conducted a comprehensive analysis of security risks, develop a scientific maintenance program.


1 substation operation of several risk management in the point
1.1 Transformer operation
Duty personnel must ensure the operation of the transformer a high degree of caution, as long as part of a small error can cause significant adverse effects. The general state, personnel to operate the danger point when the majority of transformers presented in two forms: first, to meet load Most occur when the transformer over-voltage, and these will damage the transformer insulation function; Second, the transformer no-load voltage is increasing, and this will also damage the transformer insulation damage of these are to remind the operator transformer must be for the attention of the entire operation.

1.2 bus switching operation
Bus switching operation for switching operation is very important in terms of composition, if the operator is not sufficient preparation for the work, also failed when the procedure is strictly based on the standard operation, the probability of the existence of risk will continue to grow. The bus switching operation also has a different form when the danger point, there is one problem with negative Hera Knife, the second is due to switch relay and the automatic device errors caused by malfunction phenomenon and the third is in the air Inductive charging load bus voltage transformer and the switch of the fracture caused by series resonance capacitor. If not treated these problems will cause great damage to the substation.

1.3 preparation vote switching operation
Operation in the substation need to use different forms of equipment, combined with the specific situation can be divided into operation, hot standby, cold standby, maintenance and other four cases for the device, its state is changing its , the changes between two different states should be completed switching operation ticket. vote switching operation in the Chinese power grid switching operation based on the key is to ensure that power, safe operation of equipment and personal security infrastructure from a different accident situation, after the formation of the wrong operation of votes, the equipment or personnel will cause great damage to the normal operation of power systems bring obstruction.

1.4 DC link operation
Duty in the substation need to run a wide range of operations, while the DC circuit operation is the most common, more importantly, this operation is a high risk. If you choose to carry out such operation without a correct way, so will result in automatic equipment and the protection of some malfunction, to bring a lot of negative substation. Thus, the DC circuit operation must be in strict accordance with the relevant standard operating, maintaining the correctness of substation operations.

1.5 the risk of weather factors
The external environment is the substation operation can not be ignored, if the weather is the same problem occurred in abnormal operation and management will cause the emergence of various forms of transformer accidents Example: winter, oil-filled equipment, the oil is too low, tight wire ; the summer, oil-filled equipment, the oil is too high, the wire is too loose; wind, the wire is wound debris; fog, the occurrence of flashover equipment, etc., which in turn will bring a different substation dangerous incidents. Thus, we have integrated many aspects to prevent, for different weather to take effective preventive measures.


2 substation operation and management of dangerous point against
2.1 sound system, implementation
According to the actual work to develop a scientific management system, which is to ensure the smooth management of substation operation based in the ideology of the operator on duty to carry out ideological education, and growing awareness of their security operations, regulate the operation of the actual behavior of In addition, the implementation of the daily management, and actively create a safe production responsibility system and incentive mechanisms to fully implement the contents of each work into practice, and to quantify the matter after the operation, refinement, good management in the internal mechanism of the formation, maintenance the orderly conduct of the operation in the form. the comprehensive implementation of different rules and regulations of maintaining the system, the ideal role to play in order to enhance the sense of responsibility running personnel.

2.2 to enhance the quality and standards
Good professional staff of each substation requires, even though the current transformer in China has been strict management of operation, but by the quality of the operator, making the entire substation operation level of work varies, these have a direct work hard to create smooth substation operation, which requires transforming managers need to develop science based on the actual training initiatives, and actively take the current with the technical conditions, and the kinds of job training seriously insist on the qualification exam to enhance their quality. In addition, different substation Technology needs to update the adjustment, transforming operational capability in order to continuously improve the other hand, extensive technical communication skills is essential to improve the operator measures the different substations, gathered together for the appropriate issues discussion is necessary, can continue to enhance the professional skills of substation operation and management level.

2.3 relay, careful treatment
Relay in the power grid work is indispensable in the security barrier, if the corresponding relay is no time to play the role, then there is the risk of the substation will be greater. Thus, all aspects of perfect relay from work, so that protection devices for a long time in normal operating conditions is critical for protection operation management, we need to adopt the "three good job" and the "three a check "indicator for plate, control and protection equipment, the DC system, each branch circuit and so the need for active management, to avoid malfunction caused by a series of operational failures, not to create a transformer to run a good environment. Links to free download http://www.hi138.com 2.4 prevention, try to improve the
Although accidents are sometimes difficult to be controlled, but as long as we are able to practice the long and growing experience to take various preventive measures will effectively control the incidence of risk. On duty in their daily work, the need for safety supervision department timely reporting of incidents, and make the analysis of the original accident investigation, and according to the summary of the practical problems of dealing with work experience, develop a scientific and feasible precautions in addition to prevent similar occurrences, but also need access to different forms of failure rich experience, strict control of the distribution of dangerous point. After these anticipatory prevention, the awareness of operating personnel for the safe operation will be greatly improved thereby to ensure the safe operation of substation and stable operation.

2.5 inspections, must be strengthened
Running the operation to strictly enforce the monitoring equipment is to ensure early detection of unusual problems. Substation monitoring equipment during operation can always know the operational status of equipment, safety equipment, guide operating personnel to adjust equipment to maintain the normal operation state, while reality, many substation monitoring equipment did not give enough attention to transforming the safe operation of this potential threat, which requires the necessary staff training to improve their professional level of work on electrical equipment and scientific maintenance.

2.6 overhaul work, seriously
During the annual overhaul, substation switching operation, the implementation work of the votes is too dense, large amount of this phase of the task is to maintain system security key stage in the overhaul period of control measures is reflected in: overhaul before, according to the maintenance department work, maintenance work planning and reasonable arrangement, the normal state of different devices for testing and positive full implementation of the "personnel, tools, spare parts" and other aspects of the work; work with colleagues to strengthen exchanges, technical exchanges, focusing on learning compensate for the inadequacies of their own existence; overhaul stage, in the relevant record in the books of each working day to be marked with the number of words required to layout the grounding line position, has to avoid improper operation with a ground wire closing misuse.


3 Conclusion
From the actual work situation, risk analysis, to strengthen prevention and control is extremely important. In order to ensure both play in the real work the desired effect, you need to fully implement the contents of the operation, rules and regulations can not be confined to verbal or writing actively take supervision, guidance and review the work, risk management for substation operation point analysis a significant effect.


References
[1] should be all high. Substation operation point analysis and risk management applications [J]. Science and Technology Information, 2009 (13).

[2] Xin Liang. Safety Management of substation operation [J]. Science and Technology Information, 2009 (9).

[3] show Shu-hong. On the point of pre-control risk substation operation [J]. Science and Technology Information, 2009 (32).

[4] Yuan Xiaojie. On the substation operation management [J]. Beijing Electric Power College, 2009 (8).

[5] Lei Xiao. Substation operation of the fault and security management [J]. Kehai stories Expo. Science and innovation, 2009 (11) Links to free download http://www.hi138.com