In industrial plants, it provides stable power supply for three-phase equipment such as machine tools, fans and assembly lines. Shopping malls, office buildings and data centers use it to achieve zoned power distribution for lighting, air conditioning and computer room. The distribution box is a core device in the power system for realizing the distribution, control and protection of electrical energy, and is widely used in industrial production, commercial buildings, municipal engineering and outdoor facilities and other scenarios. A feeder usually begins with a feeder breaker at the distribution substation. Many feeders leave substation in a concrete ducts and are routed to a nearby pole. At this. This report assesses underlying causes of the ongoing power sector crisis in Myanmar. Design Considerations of Distribution Feeders: Radial and Loop Types of Primary Feeders, Vo ltage Levels, Feeder Loading, Basic Design Pra tice of the Secondary Distribution System. Voltage Drop Calculations (Numerical Problems) In A. “FY” before a calendar year denotes the year in which the fiscal ye rea uity the SSONS, AND RECO g gh at financial closing da ta E ne ol and equipment (c g. ti lo st nv ronment and soci 0 zi g the substation for power line co ion, and other. These systems differ in voltage levels, power capacity, and infrastructure requirements, making it crucial for engineers to grasp their unique roles. Primary systems handle larger capacities and experience higher fault currents, while secondary systems focus on localized delivery with reduced line.