Power Factor,cosφ and precise reactive power compensation

Power Factor PF Measurement

The control unit calculates:

• The power factor per phase PF_L1, PF_L2, PF_L3, from the phase active and apparent powers.
• The total power factor PF from the total active power P_total and the total apparent power S_total:

PF = P_total / S_total

NOTE: Stot is the vector or arithmetic total apparent power, depending on the setting.

This indicator qualifies:

• The oversizing necessary for the installation power supply when harmonic currents are present.
• The presence of harmonic currents by comparison with the value of the cos φ .

COS φ  Measurement

The control unit calculates:

• The cos φ per phase from the phase active and apparent fundamental powers.
• The cos φ from the total fundamental active power P_fundamental and the total fundamental apparent power S_fundamental:

Cos φ =P_fundamental / S_fundamental

PF – in the analyzer this is, PF that is P/Q

cosφ  – in the analyzer, it is the component related to the phase shift between the first harmonic of current and voltage. For a sinusoidal supply voltage, the cosφ = P / S notation is true.

YTPQC-SVG Precise Compensation

For electricity billing  system, in some countries  the first harmonic reactive power is taken into account. And they need charge for each Var of capacitive excess. So the precise var compensation and not over compensation is very important. YTPQC-SVG Static Var Generator can realize such precise var requirement.

Besides, YTPQC-SVG can compensate the reactive power from transformer at low voltage side.

Choose YT Electric, as your best partner.