3 Phase Power Factor Meter Circuit Diagram

Here it is applied to three phase four wire systems current coil of all the three wattmeters marked as 1 2 and 3 are connected to respective phases marked as 1 2 and 3.

3 phase power factor meter circuit diagram.

Pressure coils of all the three wattmeters are connected to a common point at. Current sensor circuit use acs712 current sensor and voltage sensor circuit consists of step down transformer and voltage divider circuit. A new approach of employing fuzzy logic for building embedded controller for. The construction of the three phase meter is shown in the figure below.

Measuring power in three phase three wire circuits 37 6a. Using line data 36 5. Circuit diagram of power factor meter using arduino consists of current sensor and voltage sensor circuits. The connection diagram for the measurement of power in three phase power measurement circuit using two wattmeter s method is shown in figure 1.

This torque acts on anti clockwise direction. Measurement of three phase power by three wattmeters method. The connections for star connected loads for. However this method can also be employed in a 3 phase 3 wire delta connected load where power consumed by each load is required to be determined separately.

Freds to make a stand alone direct copper bonded power circuit make it quite convenient and user friendly. The current coil of the wattmeter s 1 and 2 in. Powerful yet inexpensive microcomputers and dsps make it attractive to design compact controllers for the vienna rectifiers. Using phase data 36 4d3.

The above equation shows that the deflecting torque is equal to the phase angle of the circuit. 3 phase power factor correction using vienna rectifier approach and modular. Three wattmeter method is employed to measure power in a 3 phase 4 wire system. The circuit may be taken as balanced or unbalanced one balanced type being only a special case.

Please not the connection of two wattmeter s. Now the pressure coil is split into two parts one is purely inductive another is purely resistive as shown in the diagram by resistor and inductor. The electrodynamometer is only useful for the balanced load. Three wattmeter method of three phase power measurement.

The main difference of construction between the single phase and three phase power factor is that the moving coils c 1 and c 2 are at 120 degrees to each other and these moving coils c 1 and c 2 are connected across the two various phases of the supply. Both the coil has a series resistance. The general circuit diagram of single phase electrodynamometer power factor meter is given below. Measuring power in a single phase circuit 36 5a.

Arduino measures the power factor by comparing the time difference between current wave form and voltage wave form. Using one single phase wattmeter to measure power in a three phase three. They are connected across different phases of the supply circuit. Calculating power in a three phase circuit with mixed wye and delta loads 35 4d1.

Three phase electrodynometer power factor meter. These power factor meters have the same construction as the single phase power factor meter has. This is irrespective of the circuit connection star or delta. The circuit diagram is shown below.