Basler BE1-11g Instruction Manual page 381

9424200994 Rev U
Bus CT Selection
The CT Source setting selects the Bus CT to use in calculations for metering, fuse loss (60FL), power
protection (32, 40Q), and impedance protection (21, 40Z, 78OOS) on protection systems equipped with
two sets of CTs.
Settings
Sensing transformers settings are configured on the Sensing Transformers settings screen (Figure 283)
in BESTCOMSPlus. Setting ranges and defaults are summarized in Table 118.
Setting
Phase/Ground CT Ratio
Unbalanced Calculation Mode
CT Connection
CT Source*
Phase VT Ratio
Phase VT Connection
27/59 Mode
27R Mode
Aux VT Ratio
Aux VT Connection
* For protection systems equipped with two sets of CTs.
BE1-11g
Figure 283. Sensing Transformers Settings Screen
Table 118. Sensing Transformers Settings
Range
1 to 50,000
I2/I1 or Average
WYE, DAB, or DAC
CT1 or CT2
1 to 10,000
AB, BC, CA, AN, BN, CN, 3W-D,
or 4W-Y
PP or PN
PP or PN
1 to 10,000
AB, BC, CA, AN, BN, CN, or
Ground
Increment Unit
turns
0.01
ratio
n/a n/a
n/a n/a
n/a n/a
turns
0.01
ratio
n/a n/a
n/a n/a
n/a n/a
turns
0.01
ratio
n/a n/a
Configuration
369
Default
1
I1/I2
WYE
CT1
1
4W-Y
PN
PN
1
AN