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The power system relay protection is an organic whole, and the microcomputer relay protection tester professional should implement unified leadership and hierarchical management. Provision of relay protection agencies in the network bureau, provincial bureau, prefecture (city) power bureau and power plant. The Network Bureau and the Provincial Bureau respectively set up the relay protection department as the functional agency for the relay protection technology management, perform the functions of professional management, and realize the professional leadership of the whole network and the province's relay protection, and are responsible for the system under their jurisdiction. Electric protection setting calculation and operation management. The relay protection setting calculations and technical management of the prefectural (municipal) power bureaus are generally located at the dispatch offices. Relay protection teams are set up in the maintenance divisions of the local (municipal) power bureaus and power plants, or in the transformer station (overhaul department). They are responsible for the operation, maintenance, and establishment of protective relaying equipment for the entire or entire plant.
Microcomputer relay protection tester is very professional and technical, and the problem of one wire and one contact point may cause major accidents. Therefore, the relay protection institution must be equipped with professionalism, work meticulously, and strive to delve into technology, with a high theoretical knowledge of professional Technical staff. The relay protection departments at all levels must establish a post responsibility system so that each responsibility can be fulfilled to individuals. The leaders of each unit must pay attention to protection of relays, fully allocate technical capabilities, mobilize all levels of protection personnel, and maintain the stability of relay protection teams.
For the fixed value management of the microcomputer relay protection tester, the system relay protection setting plan should be regularly compiled or revised in conjunction with the development of the power system. The preparation basis for the setting plan: the system's operating mode and operating parameters as verified by the leader, including the normal and actual possible overhaul operation modes, active and reactive power flows (including the inrush current value if necessary, the self-starting current value of the motor, etc.), Low-running voltage, phase sequence components of non-full-phase operation, good closing time, and specific requirements for de-listing. Important generators and equipment and parameters required for systems above 110 kV must use actual measured values. After the preparation of the preparation plan, a full-scale verification shall be carried out in this relay protection department, followed by discussion by the departments of dispatch (value), operation, biotechnology, safety supervision, etc., and implementation shall be implemented after the approval of the chief engineer. The original manuscript for setting calculations shall be organized into books and properly kept for daily operation or accident handling. The adjustment of the setting value of the on-site microcomputer relay protection tester device shall be carried out according to the requirements of the protection device setting notice, and shall be completed according to the stipulated date.
For the protection device in operation, regular inspections shall be carried out in accordance with the relevant provisions. The grass-roots bureaus and the relay protection departments of the plant shall, according to the characteristics of the season, the load conditions, and the maintenance of the primary equipment, arrange the protection device inspection of the year, season and month reasonably. plan. Regular inspections should ensure the quality of inspections, master the progress, and complete them in a timely manner. After the relay protection device is inspected, it shall be confessed to the operator and fill in the working record of the microcomputer relay protection tester. It is forbidden to put unprotected equipment into operation during operation. The withdrawal of the major protection must be approved by the chief engineer. When the protective device malfunctions, it shall promptly report to the higher level relay protection department and the setting jurisdiction, and keep the original state at the scene, and carry out on-site inspection after the accident. The inspection item shall be determined according to the specific conditions of the incorrect operation, and the major accidents. The inspection work shall be agreed with the superior relay protection and safety supervision departments, and the intermediate research institute and the electric power test institute shall participate in the analysis to find the cause of the incorrect operation and formulate countermeasures. The operation department should strengthen equipment inspections at ordinary times, and carry out equipment safety inspections and protection and transmission tests before peak load comes.
For new construction, the microcomputer relay protection tester and the automatic device must be put into operation simultaneously with the project. After the newly installed protection device is completed, acceptance work shall be carried out to prevent improper operation or accidents due to improper installation and debugging.