Summary
High voltage power metering box (without watt hour meter or combined transformer) AC oil immersed outdoor type (also suitable for indoor), is a metering device that directly measures the active and reactive electric energy in high voltage lines. It is applicable to the three-phase AC 35kV, 10kV, 6kV and 3KV power system network with rated frequency of 50Hz and 60Hz.
It has the advantages of high precision, light weight, convenient installation and anti stealing. It is welcomed by the majority of power supply departments. It plays an important role in preventing electricity stealing, saving energy and strengthening power supply management.

Structure introduction
The three-phase three wire two element high-voltage power metering box (combined transformer) is composed of two single-phase voltage transformers connected into (PT) and two current transformers (CT). Both Pt and CT are electromagnetic type. Two Pt windings are connected into three-phase measuring device by V / V connection. The primary winding groups of two CTS are connected with phase A and phase C in series, and the side of the box is welded with grounding screws.

Model and its meaning


Environmental conditions for use


Main technical data