New Office Environment - Perfect2019-05-28
With the arrival of the National Day holiday, our company has completed the construction of the new office building as planned All personnel in the technical department have moved to the new office building and are working hard in the new office environment The new office environment is great, and all the facilities are newly added, including desks and chairs, which are not in that dark color ..
Key points for installation of high and low voltage distribution cabinets2019-05-28
(1) The equipment requires that the appearance inspection of the cabinet (panel) body should be free of damage and deformation, and the paint should be intact and undamaged. Internal inspection of cabinet (panel): Electrical devices and components, insulation porcelain parts are complete and free of defects such as damage and cracks. Before installation, it is necessary to verify whether the distribution box number matches the installation position, and check its box number and box return according to the design drawings ..
What are the high and low voltage distribution equipment?2019-05-28
What are the high and low voltage distribution equipment? Distribution equipment refers to a complete set of equipment used for power, distribution, and lighting in low-voltage distribution systems of power plants, substations, and mining enterprises. Low voltage distribution equipment: low voltage distribution panel, switchgear, switch board, lighting box, power box, and motor control center. High voltage distribution equipment: main ..
Main technical specifications for low-voltage distribution equipment2019-05-28
Main technical specifications for low-voltage distribution equipment GB 4942.2-85 Shell protection level GB 7251-97 Low voltage switchgear JB/T 9.661-1999 Low voltage withdrawable switchgear GB14048 Low voltage switchgear and control equipment Technical indicators (l) Environmental conditions l) Environmental temperature: -15 ℃~+ ..
What are the technical requirements for installing SF6 circuit breakers?2019-05-28
What are the technical requirements for installing SF6 circuit breakers? The technical requirements for installing SF6 circuit breakers are as follows: (1) Familiarize oneself with the manufacturer's instructions and drawings, prepare installation and commissioning plans, and prepare leak detection instruments and nitrogen gas, etc. (2) When installing the body, the dimensions between each phase should match the manufacturer's requirements, especially ..
What are the major maintenance projects for SF6 circuit breakers?2019-05-28
What are the major maintenance projects for SF6 circuit breakers? Generally, the following tests are required after major repairs: 1. Measure insulation resistance; Measure the resistance of each phase's conductive circuit; 3. AC voltage withstand test; 4. Testing of circuit breakers and equalizing capacitors; Measure the opening and closing time of the circuit breaker; Measure the opening and closing speed of the circuit breaker; 7...