Three phase energy meter is a measuring instrument device which is used for measuring the utilizing power of three phase. many types of meter are used as details below mentioned. Electromechanical induction type. Electronic energy meter. Here we are going to discuss about electronic or digital three phase energy meter.
Your single-phase meters measure the total energy consumed by a single-phase electrical circuit. But if you have a three-phase meter it measure the combined energy consumption across all three phases of your three-phase system.
4 - Parameters of three phase digital energy meter. Phase wise load in % : three current in % of full load. Unbalance load in % : Current and voltage unbalance in %. Power: VA, W, VAR, per phase and total. Energy:VAh, Wh, + VARh. CT polarity check.
A 3-phase meter works by connecting two single phase meters through the shaft. The total energy consumption is the sum of the readings of both elements. The torque of both elements is added mechanically, and the total rotation of the shaft is proportional to the 3-phase Analog Electric Meter consumption.
Mostly, four wires are present in this system. Each phase contains two wires. Three wires are present in some of the 2 phase systems. One is for each phase, and the third is for the common wire. The three-phase meter is one in which power is dispersed across three phases. The 2 phase meter distributes power into two phases.
For three phase power, you will definitely need a different utility meter. Additionally, if it is not already present, you will need a 3-phase circuit breaker panel, having three internal bus bars to accommodate the three phase circuit breakers you will eventually use.