 What are the three quantities measured by using a trivector meter?

In high tension systems, such a meter is utilized to monitor three components of power flowing through any of the feeders, and the measurements acquired are used for billing reasons. The Trivector meter is a device that monitors the active power, reactive power, and total energy consumed by a power line. It does this by measuring the magnetic field surrounding the wire when current is flowing.

The active power is the amount of heat generated by the electric circuit; it is calculated by multiplying the voltage across the circuit by the current flowing through it. The reactive power is the ability of a circuit to store energy in its inductors or capacitors; it is calculated as the product of the current and the impedance of the circuit. The total power is the sum of the active and the reactive power; it is also called effective power. The third quantity measured by a trivector meter is the apparent power, which is the active power divided by the impedance of the circuit. The impedance of an electrical circuit is defined as the opposition offered to the flow of current through it; it is a measure of how much resistance there is across the circuit. A low-impedance circuit will allow more current to pass than a high-impedance one, so more power will flow if the current is constant.

A vector meter can only give a total power measurement; you need other equipment (such as a watt-hour meter) to calculate the other two quantities.

How is the power of a three-phase supply measured?

The three-phase energy meter is a meter that is used to measure the power of a three-phase supply. The three-phase meter is built by joining two single-phase meters via the shaft. The total energy is the sum of both elemental measurements. In other words, it is the algebraic or arithmetic average of the three currents drawn from the supply.

A three-phase electric supply consists of three separate conductors which carry equal amounts of current at all times. A device that measures the amount of electricity that flows through these conductors is called a "three-phase meter". Modern three-phase meters usually have red, green and blue lights or lamps attached to them that are turned on when there is electricity flowing through any one of the lines. These lamps indicate which line has more electricity than the others and therefore must be higher potential voltage than the others. A third set of lamps shows which line is lower potential voltage than the others and must be lower than the other two lines.

Three-phase power is available in some motors, but it is not common for consumers to use it. Motors need to be designed specifically to run on three-phase power and most manufacturers make this type of motor only for distribution use. Regular household motors are powered by single-phase electricity and must therefore be rotated by a three-phase motor.

How does a three-phase energy meter work?

When connected to loads, they use less power and begin measuring immediately. As a result, the electronic kind of three-phase energy meter is described below, along with its operating principle. This meter can measure current, voltage, and power in three-phase power supply systems. It also has some additional features, such as overload protection and resetting for starting new measurements after a power surge.

The electronic three-phase energy meter consists of two major parts: one part is the electronics, which includes a microcontroller unit (MCU) and other associated components such as capacitors, resistors, and inductors; the other part is the display, which includes a LCD or other suitable display device. The MCU controls the entire operation of the meter, from recording data to displaying it on the screen. The electronic three-phase energy meter measures the incoming voltage from each phase and compares it with a preset threshold value. If the voltage of any phase is higher than the threshold level, then the MCU will trigger an alarm condition. Once this alarm state is triggered, all measured values are lost until the problem causing the high voltage is fixed. The electronic three-phase energy meter is very accurate and reliable, but it cannot measure current directly. Instead, it uses the resistance method to estimate the current using several different phases of the circuit.

Three-phase power is used in many applications, including air conditioners, heat pumps, and industrial motors. 