Chapter 3 BFM136 Graphical Display Operations Menu Operations
Branch Feeder Monitor 136_Installation Operation and Manual 33
3.5.5 Transformer Correction
Transformer correction allows you to compensate ratio and phase angle inaccuracies of the user voltage
and current instrument transformers. To enter the menu, select the T.Corr. entry from the main menu, and
then press the ENTER button. For instructions on navigating in the menu, see Viewing and Changing
Setup Items.
The following table lists available options.
V1-V3 voltage
transformer ratio
correction factor
The ratio of the true transformer ratio to the
marked ratio.
V1-V3 transformer
phase angle error,
minutes
The phase displacement, in minutes, between the
primary and secondary values. The phase angle
of a voltage transformer is positive when the
secondary value leads the primary value.
I1-I36 current
transformer ratio
correction factor
The ratio of the true transformer ratio to the
marked ratio.
I1-I36 transformer
phase angle error,
minutes
The phase displacement, in minutes, between the
primary and secondary values. The phase angle
of a current transformer is positive when the
secondary value leads the primary value.
3.5.6 Device Options
This menu allows you to select some user-configurable device options or put the BFM136 into energy test
mode.
To enter the menu, select the Options entry from the main menu, then press ENTER. For instructions on
navigating in the menu, see Viewing and Changing Setup Items.
The following table lists available options.
Reactive,
NonActive (non-
active power)
The method used for calculating reactive
and apparent powers
100000.0-
100000000.0
kWh
The value at which energy counters roll over
to zero
Setting this option puts the device into the
energy test mode
Wh LED pulse rate,
Wh/pulse
5.40Wh/pulse
(one equivalent
disk revolution)
LED pulse constant - the amount of
accumulated energy giving one pulse via
“Wh” LED
Selects a submeter as a LED pulsing
source
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