关键词:计算负荷、变压器选择、短路电流、继电保护
Abstract
With modern technology and the increasingly higher living standards, people’s requirements of safe, comfortable, practical, convenient, and environmental protection for living has been increasing.
The design specifications for the relevant national guidelines to safe use of electricity, energy conservation as a guide, focus on improving people's material and cultural life, embodies the well-off society and life of material well-being of the rich, the application of modern electric technology, the completion of the business living floor power distribution, and grounding lightning protection.
In the distribution design, according to load level, it determine the power supply and system solutions; the design of the chain to comb the wiring to ensure the reliability of power supply; use need to calculate load factor method, select the transformer and substation selection site, in accordance with the provisions of protection of electrical options, wires and cables, switch cabinets, etc., to achieve safe use of electricity and energy savings. Grounding the design of lightning protection, by flat steel structure and foundation phase, lightning protection, grounding the common grounding, not only ensures the safety ground, but also for save the grounding.