1.Certificate:CCC,CTQC 2.Top 10 in china ... serial interface.Therefore, it is widely used in the places such as hotel, restaurant, airport, power plant, hospital, skyscraper, shopping center, ... residential areas and other adverse environments like subways, smelt and power plant, ship, offshore drilling platform, etc.Technical parameters Rated ... 1250KVA 23/0.22 SCB9dry type cast resin power transformer