一、前言DBZ—1型直流电子电度表是我所为计量城市无轨电车单车耗电量而设计的电子仪器。一九八○年三月开始研制,一九八二年九月通过鉴定,此后进行了小批量生产。经成都、重庆、西安、北京、青岛等十五个城市装车使用,证明其线路可行、结构合理,各项技术指标和产品的可靠性满足各地区电车使用要求,达到了计量无轨电车消耗和节能的目的。 I. Introduction DBZ-1-type DC electronic meter is designed for measuring the city trolley bus power consumption and design of electronic equipment. Development began in March 1980 and passed the appraisal in September 1982, after which small-batch production was carried out. It has been loaded into 15 cities in Chengdu, Chongqing, Xi’an, Beijing and Qingdao to prove that the routes are feasible and reasonable in structure. The technical indicators and the reliability of the products meet the requirements of the trams in various regions and have reached the standard of measuring trolley bus consumption and Energy-saving purposes.