TDK Corporation has extended
its range of EPCOS power
factor controllers. The new
BR7000-I controller is designed
specifically for single-phase
networks and combines all the
performance features and functions
of the proven BR6000 series with the
benefits of the BR7000 controller.
All information is displayed on a
large graphic LCD display with a
resolution of 128 x 64 dots. Context related
help texts can be called up at
any time via a HELP key. The power
factor cos ? is displayed with three
digits, and tan ? can also be shown.
Three results can be shown
simultaneously in display mode.
Odd harmonics can be measured and
displayed up to the 33rd order, and
even harmonics up to the 16th order.
The selected harmonics can also be
represented in bar charts.
The controller has 12 or 13
outputs. The message and alarm
relay parameters may be
programmed to open or close. The
BR7000-I (ordering code
B44066R7012E230) can be
combined very effectively with
EPCOS capacitor contactors and
PFC capacitors.
Untitled Document
Reactive Power & PFC |
Reactive power invariably occurs
when the phase angle between
current and voltage is shifted.
Reactive power is caused by
inductive loads such as electric
motors and transformers and despite
being quite useless, is necessarily
generated by power plants. Reactive
power can be almost completely
corrected by connecting-in power
factor correction (PFC) capacitors.
This reduces energy costs and helps
protect the environment.
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