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Prepping for Installation
Meter Setup
31
Building Technologies
125-202
06/06/2017
A DELTA connection displays only the two available CTs. Any changes made to CT1
also apply to CT3.
●
Depending on the wiring connection, make changes to CT1, CT2, and/or CT3.
●
CT Phase—Shows the voltage of the referenced CT.
●
CT Type—Use the drop-down list to select the type of CT attached to the MD-BMS
or MD-BMED Power Meter.
●
CT Amps—Enter the amperage rating.
●
CT Phase Shift—Enter (in degrees) the phase shift of the CT. The default is 1.1.
Table 6: Current Transformers Setup Criteria.
CT Style
Part Number
CT Rated
Amps
CT Phase Shift
Value
Recommended Data/Digital Scalar for
3-Phase Loads
Nominal CT
Accuracy
230V
460V
Hinged Mini
SCT-HSC-0050-U
50
0.75°
Scalar 1
Scalar 2
0.5%
Hinged Midi
SCT-HMC-0100-U
100
0.12°
Scalar 2
Scalar 2
0.3%
SCT-HMC-0200-U
200
0.30°
1%
Split Core Small
SCT-SCS-0050
50
2.20°
Scalar 1
Scalar 2
1%
SCT-SCS-0100
100
Scalar 2
Split Core Medium
SCT-SCM-0100
100
1.75°
Scalar 2
Scalar 2
1%
SCT-SCM-0200
200
1.50°
SCT-SCM-0400
400
1.30°
SCT-SCM-0600
600
Scalar 3
Split Core Large
SCT-SCL-0600
600
0.00°
Scalar 2
Scalar 3
1%
SCT-SCL-1000
1000
Scalar 3
Rogowski Coils
SCT-R16-A4-U
4000
N/A
Scalar 3
Scalar 3
1.2%
SCT-R24-A4-U
SCT-R36-A4-U
Revenue Grade Toroidal
Solid Core
SCT-RGT12-0005-U
5
0.00°
Scalar 1
Scalar 2
0.2%
SCT-RGT12-0020-U
20
Scalar 1
Scalar 2