【overview】Zhongke Xinyi is a high-tech enterprise integrating high-voltage testing and testing equipment, power metering instruments, battery DC system testing, power online monitoring system research and development, production, sales, consulting and power technology services. The company has a full set of power test equipment for customers to upgrade their qualifications.

Zhongke Xinyi is a high-tech enterprise integrating high-voltage testing and testing equipment, power metering instruments, battery DC system testing, power online monitoring system research and development, production, sales, consulting and power technology services. The company has a full set of power test equipment for customers to upgrade their qualifications.

The following preparations shall be carried out before construction:

1. All kinds of maintenance, reconstruction and expansion construction operation plans, organizational measures, technical measures and safety measures shall be reviewed and approved by local and municipal companies (provincial maintenance companies) before implementation.

2. The construction work that may cause the five-level power grid incident shall be reviewed by the safety supervision, transportation inspection, construction and control departments of the local and municipal companies (provincial maintenance companies).

3, may cause level 4 and above power grid events construction operations, should be by the provincial company safety supervision, transportation inspection, construction, control departments for each professional joint review.

The construction site management shall be strengthened, and the requirements are as follows:

1. The project management unit shall organize a construction safety disclosure meeting before commencement. The operation and maintenance unit shall make detailed disclosure of on-site safety measures to the construction unit. Key measures that may easily lead to complete shutdown of the substation shall be signed and confirmed item by item.

2. The reconstruction and expansion equipment and the operation equipment shall have obvious physical disconnection points, and the construction area and the operation area shall take hard isolation measures to disconnect the secondary circuit related to the operation equipment.

3. In principle, the lapping work of primary equipment and operation bus for reconstruction and expansion shall be arranged and implemented after all primary equipment installation and debugging are completed and passed the acceptance within this interval. Once the lapping is completed, it shall be included in the management of operation equipment and shall be included in the dispatching jurisdiction. The work on this equipment shall strictly implement the working ticket system.

4. In principle, the lapping work between the reconstruction and expansion of the secondary equipment and the operation panel cabinet shall be arranged to be implemented after the transmission test of the 1. secondary equipment is completed within this interval. Once the lapping is completed, it is forbidden to carry out any transmission test under the condition that the relevant equipment is not powered off.

5. The setting and restoration of safety measures for reconstruction and expansion of secondary equipment shall be implemented by the operation and maintenance unit, and the construction unit shall not change the safety measures without authorization.

Before and after the power transmission of the reconstruction and expansion project, the secondary professional personnel shall cooperate with the operation and maintenance personnel to carry out the status check of the secondary device of the reconstruction and expansion equipment and the relevant circuit pressure plate to prevent leakage or misdelivery.

Wuhan Zhongke Xinyi Electric Power Technology Co., Ltd., as a professional provider of electric power test equipment, has the obligation and responsibility to make China's electric power industry more perfect and provide reliable products and knowledge for the majority of electric power people.

Method of Preventing Substation Full Shutdown under Maintenance Mode

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Method of Preventing Substation Full Shutdown under Maintenance Mode

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