Guangzhou of Mechanical and Electrical Transmission and Distribution Engineering Technology Co., Ltd. has a contract of three, electrical and mechanical equipment installation engineering contracting three; south Authority issued Holds three, for repair, bearing four qualification test. Providing an electrical room equipment preventive test for detection of maintenance services, discover hidden equipment operation, prevent accidents or damage to the equipment, in strict compliance with the electrical safety procedures and the operation and management procedures to ensure the normal operation of the distribution system. Providing 24-hour emergency maintenance and repair services 186-2018-8358. Power transformer is a static electrical device, it is used to a certain value of the AC voltage (current) into the same frequency as another one or several different values ??of voltage (current) devices. When the primary winding through a alternating current, alternating magnetic flux generated alternating magnetic flux through the core role of the AC electromotive force is induced in the secondary winding. Secondary induction level and a secondary winding turns EMF much information, that is, the voltage is proportional to the size and number of turns. The main role is the transmission power, and therefore, the rated capacity is its main parameters. Rated capacity is a manifestation of the power of conventional values, it is the characterization of the size of the transfer of power to kVA or MVA said that when the transformer rated voltage is applied, according to which, under specified conditions to determine the limits of temperature rise does not exceed the rated current. More energy-efficient power transformer amorphous alloy core distribution transformers, its biggest advantage is that the value of extra-low load loss. Ultimately able to ensure load loss value, it is the core issue throughout the design process to be considered. When the product structural arrangement, in addition to considering the amorphous alloy core itself from external forces, but at the same time must reasonably accurate in the calculation of selected parameters of amorphous alloys. Clients: 10KVA power lines and have their own management and maintenance of the user, such as factories, office buildings, dormitories, shops, property, hotels, hospitals, schools and other types of household electricity, all high and low voltage electricity customers. Services: Preventive inspection and testing 1. The high and low voltage electrical equipment. 2. High and low voltage electrical equipment maintenance and repair. 3. Check and remove hidden faults. 4. monthly inspections and checks. 5.7x24 hour emergency repair, equipment maintenance. 6. Submission of equipment to run monthly reports.