Voltage level:AC 35kv, 10kv, 6kv, 3kv High accuracy, light weight, easy to install and anti-tamper. 1. General AC immersed outdoor type high-voltage power metering box (called combined transformers without metering) is use to measurement the power consumed in high-voltage electrical network. It suitable for 50Hz and 60Hz three phase AC 35kv, 10kv, 6kv, 3kv power system. High accuracy, light ...