Construction Program General construction procedures: Buried pipe, buried parts → equipment installation → wire, cable laying → loop connected → check, test, commissioning → power test run → delivery use Oil-immersed power transformer Unpacking inspection → Secondary handling → Equipment in place → Core inspection → Attachment installation → Oil filtering, oil injection → Insulation test → Handover test → Acceptance Whether the oil-immersed power transformer needs a core inspection should be determined based on the size of the transformer, the manufacturer's specifications, storage time, and whether there is an abnormality in the transportation process. Cabinet type vacuum circuit breaker Vacuum Circuit Breaker Inspection → Operating Mechanism Check → Vacuum Circuit Breaker In Place → Mechanical and Electrical Performance Test Oil circuit breaker Unpacking inspection → Main body installation → Operating mechanism installation → Check, adjustment → Insulation test → Test Isolation switch Unpacking inspection → Main body installation → Operation mechanism installation → Adjustment skills requirement Installation regulations The storage and storage period of the electrical equipment and equipment before installation shall be in accordance with the requirements of the manufacturer. The equipment and equipment shall be securely placed and shall not be damaged. The environmental conditions for safekeeping should include measures such as fire protection, moisture protection, and dust prevention. Fasteners for installation of electrical equipment, should use galvanized products After the transformer is installed in place, grounding terminals should be well grounded. The current transformer secondary coil that is not to be used temporarily should be short-circuited and then grounded. When installing a zero-sequence instrument transformer, pay special attention to the distance from the surrounding magnetic conductor or charged conductor. The reactor is installed so that the winding direction of the coil meets the design requirements Insulating oil should be strictly filtered and its electric strength, dielectric loss tangent, chromatographic analysis, etc. can only be injected into the equipment after passing the test. Protective grounding and working grounding of electrical equipment must be reliable Handover test The main function of the transfer test is to determine whether the installation quality of the electrical equipment is qualified, and determine whether the equipment can be put into operation. Handover test content Measuring insulation resistance The greater the insulation resistance, the better the insulation performance DC withstand voltage test AC withstand voltage test The method of identifying the insulation strength of electrical equipment is an important measure to ensure the safe operation of the equipment. Through the test to grasp the insulation of the equipment, the hidden defects inside the insulation are discovered in time. Insulation preventive tests are divided into two categories: The non-destructive test or insulation characteristic test is a variety of characteristic parameters measured at a lower voltage or with other methods that will not damage the insulation, mainly including measuring the leakage resistance of the insulation resistance, the tangent of the dielectric loss, etc. In order to judge whether there is any defect inside the insulation Destructive test or pressure test, the voltage applied in the test is higher than the working voltage of the equipment, and the insulation test is very strict, especially to expose those serious defects that are dangerous, and to ensure that the insulation has a certain degree of electrical strength , Including DC withstand voltage, AC voltage and so on. The disadvantage of pressure test is that ash can cause some damage to insulation. Measuring Conductor DC Resistance The smaller the conductor DC resistance, the better the conductivity Shenyang SanLand designs and manufactures cutting edge mobile crushing equipment for customers in the materials processing industries. Our range of jaw, impact, and cone crushers boast excellent productivity and reliability all of which is supported by our worldwide Customer Support Services. Crushing Equipment,Mobile Crushing Equipment,Rock Crushing Equipment,Industrial Crusher Shenyang Sanland Mining Equipment Manufacture Co., Ltd. , https://www.sanlandcrusher.com
Shenyang SanLand A leading supplier to the mining, aggregate and recycling industries
Shenyang SanLand rushers are designed and built with advanced technology and stringent quality control at every stage of the manufacturing process, to meet the rigorous demands of mining and aggregate operations.
Shenyang SanLand crusher range provides optimised crushing circuits that match your needs – from single crushers to complete turn-key processing plants.
Our crushers are supported by expert, highly skilled service teams providing 24/7 global product training and support.
Electrical installation engineering construction technology