Hangzhou buys back power switch cabinets, Tongshan dry-type transformer recycling

【Product Application】This product is suitable for a 3-phase AC 50Hz, 40.5kV single busbar segmented power system, used for receiving and distributing electrical energy in power plants, transformer stations, industrial and mining enterprises, and high-rise buildings. It also implements control, protection, and monitoring of the circuit, meeting the requirements of IEC60298, DL404, and other standards, and is equipped with a complete set of "Five Precautions" functions. 【Usage Conditions】1. Surrounding air temperature: Maximum 40℃ and minimum -10℃; 2. Altitude: Not exceeding 1000m; 3. Relative humidity: Daily average not exceeding 95% and monthly average not exceeding 90%; Saturated vapor pressure: Daily average not exceeding 2.2×10 Mpa, and monthly average not exceeding 1.8×10 Mpa; 4. Seismic intensity not exceeding 8 degrees; 5. Surrounding air should not be significantly polluted by corrosive gases, flammable gases, steam, etc.; 6. No frequent and severe vibration. If the conditions for the switch cabinet exceed the above provisions, the user and the manufacturer shall negotiate and determine.

The arrangement of the entire cabinet, the sequence of cabinet arrangement, and the position of the operating surface are the correct construction basis for the manufacturing plant to consider issues such as making internal partitions, terminal guards, and busbar segment supports. The layout plan must match the actual positions of the incoming and outgoing lines on-site, especially to correctly represent the direction of the cabinet operating surface, to ensure smooth installation of the high-voltage cabinets upon arrival. Often, this is not initially given due attention, and upon the arrival of the equipment, it is discovered that it does not meet the on-site requirements, leading to rework.

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High-Low Voltage Switchgear Editor: High-low voltage switchgear, as the name implies, is equipment for connecting high-voltage or low-voltage cables. Generally, power supply companies and sub-stations use high-voltage cabinets, which are then stepped down by transformers to low-voltage cabinets, and the low-voltage cabinets are connected to various distribution boxes for electrical usage. Inside, it is merely a combination of protective devices such as circuit breakers into a single electrical assembly. Introduction Editor: High-low voltage switchgear is an electrical device where the incoming external lines first enter the main control switch inside the cabinet, then proceed to the sub-control switches, with each circuit set according to its requirements. This includes instruments, automatic controls, motor magnetic switches, various AC contactors, and some even have high-voltage and low-voltage room switchgear. They may also have high-voltage busbars, such as in power plants, and some are equipped with low-frequency load reduction for the protection of critical equipment. Failure to Open Circuit Fault Hazards: If the failure to open circuit occurs during an accident, it can lead to the escalation of the accident and expand its scope. Circuit Breaker: Failure to Open Circuit Handling Methods (1) Check if the circuit of the failure to open circuit is broken; (2) Check if the coil of the failure to open circuit is broken; (3) Measure the resistance value of the coil of the failure to open circuit to ensure it is within specifications; (4) Check if the top rod of the failure to open circuit is deformed; (5) Check if the operating voltage is normal; (6) Replace the copper top rod of the failure to open circuit with a steel rod to prevent deformation.