Transformer Setup - Basler BE1-11g Instruction Manual

9424200994 Rev N
Settings
Sensing transformers settings are configured on the Sensing Transformers settings screen (Figure 269)
in BESTCOMSPlus. Setting ranges and defaults are summarized in Table 113.
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.

Transformer Setup

The BE1-11g requires information about the transformer windings to provide differential metering and
differential protection. See the
Transformer setup is accomplished on the Sensing Transformers settings screen (Figure 270) in
BESTCOMSPlus. Setting ranges and defaults are summarized in Table 114.
BE1-11g
Figure 269. Sensing Transformers Settings Screen
Table 113. 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
Phase Current Differential (87) Protection
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
chapter for more information.
Configuration
349
Default
1
I1/I2
WYE
CT1
1
4W-Y
PN
PN
1
AN