Electric Power Substation Safety Inspection
Electric power substation, also known as prefabricated substation, is a factory prefabricated indoor and outdoor compact power distribution equipment, with general, transformer step-down, low-voltage power distribution performance. Installed in a moisture-proof, rust-proof, dust-proof, rat-proof, fire-proof, anti-theft, heat-insulating, fully enclosed, movable steel structure box. It has uniqueness and practicability for the construction and transformation of urban network, and is another new type of substation after civil substation.
Because the box-type substation is operated with oil-free equipment, the problem of equipment leakage in traditional substations is completely solved. However, what safety hazards exist in the inspection process of electric power substation?
1. The box-type substation can prevent AC and DC low voltage electric shock. Before disconnecting the test power supply, the insulating cover of the test knife should be intact, and the power supply knife should be disconnected. The open circuit of the secondary circuit of the current transformer will cause electric shock, so the permanent connection of the current transformer circuit must not be disconnected. Use insulating equipment to measure the fuse and voltage of the secondary circuit of the transformer, and wear insulating gloves.
2. Precautions for electric shock in electric power substation: Check the name and number of the equipment before installation, understand the working place, and check the power supply. Cables and capacitors should be fully discharged phase by phase. Monitoring personnel should strengthen supervision.
3. Prevent accidental entry and boarding of live equipment. After pulling out the trolley switch of the high-voltage switch cabinet, the baffle blocking the live parts should be closed reliably. It is strictly forbidden for employees to open the shutters blocking live parts without authorization.
Electric power substations are used in residential quarters, urban public transformers, prosperous urban areas, building power supply, etc. Users can choose box-type substations according to different working conditions and load levels. When designing, as long as the designer designs the main wiring diagram and the equipment outside the box according to the basic requirements of the substation, the specifications and models of the box-type substation provided by the manufacturer can be selected. All equipment is installed and debugged in the factory at one time. The construction of the substation shortens the design and manufacturing cycle; on-site installation only requires the work of cabinet positioning, cable connection between cabinets, output cable connection, protection setting verification, transmission testing, etc. that need to be debugged. All substations from installation to commissioning can be shipped in only 5 to 8 days, which greatly shortens the construction period.
Our company is a high-tech enterprise integrating R&D, production, sales and installation of power equipment products. Our products cover power transformers, electric power substation, complete sets of high and low voltage equipment, and special substations such as wind power and photovoltaics. The technical performance of the products has reached the international advanced level in the same industry, with 109 patents, and the products have passed ISO9001 management system certification, CCC certification, SGS certification, etc.
