i-TOR-6(24)-U-PN is a new and simpler concept for organizing commercial electricity metering in 6(24) kV powerlines. The high-voltage meter is based on the original i-TOR technology with voltage measurement by a resistive divider. The signal of the measured i-TOR-6(24)-U-PN outputs in proportion to the primary voltage, with an accuracy class of 0.5. The small dimensions of the device allowed the equipment to be a standard polymer insulator, which is optimal for any cells with air busbar insulation, as well as a screw-on device mounted in gas-insulated monoblock cable adapters.
Current measurement is carried out using classic current transformers (1) installed on the cables of inputs or outgoing lines. Voltage measurement is carried out using i-TOR-6(24)-U-PN (2), which can be installed in standard outgoing cable adapters. The measured signal enters the information processing unit (3), which outputs a voltage proportional to the primary voltage to any type of electricity meter (4).