Advanced Energy Paramount MF 2 kW, Руководство пользователя

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travelling waves, one moving toward the load and one returning to the generator. The
power in the imagined wave moving toward the load is the forward power, and the
power in the imagined return wave is the reverse, or reflected, power.
Mathematically, in a system with a reference (cable) impedance Z
0
, forward and
reflected voltages (V
f/r
) and current (I
f/r
) can be defined as:
The plus sign is used for forward voltage and current and the minus sign is used for
reflected voltage and current. The forward and reflected powers are the product of the
voltages and currents:
Neither the forward nor the reflected power directly determine the process results.
Load Power
The load power is the power actually dissipated in the load. If the load is not reactive,
the load power is simply the voltage times the current. If the load is reactive, there
will be phase angle between the voltage and current, and the load power will be equal
to: V * I * cos (phase angle).
In terms of forward and reflected power, the load power is the forward power minus
the reflected power. Generally, the important factor in a process is the load power,
because by definition that is the actual power delivered to the load.
Advanced Energy
®
Paramount
®
MF 2 kW Generator
57020114-00E Product Overview 2‑4