
TRANS 2
TRANS 1
Source
LOADS
LOADS
LOADS
LOADS
52-2
6
5
V
T
8
L
L
R
R
1
3
7
9
52-1
52-3
2
1
4
3
5.0 A
0.2 A
Main CT
M-0169A Auxiliary
Current Transformer
90 Relay
Main VT
Motor
Power In
Motor
Auxiliary
Relay Coils
I
P
4
2
I
L
PAR
Disable
52-3b
43P
6
5
V
T
8
L
L
R
R
1
3
7
9
2
1
4
3
5.0 A
0.2 A
Main CT
M-0169A Auxiliary
Current Transformer
90 Relay
Main VT
Motor
Power In
Motor
Auxiliary
Relay Coils
I
P
4
2
I
L
PAR
Disable
52-3b
43P
Optional
52-2b
52-1b
Optional
52-2b
52-1b
GUID-0CCD991A-A496-468E-BF35-526F1AD9D910 V1 EN
Figure 332:
ΔVAR
®
2 Paralleling
Paralleling by the ΔVAR2 method does not use the M
‑
0115A Parallel Balancing Module.
This method of paralleling can only be used for two transformers. See
ΔVAR2 connections. Instead, the two load currents are brought into the control, and the
actual ΔVAR's which exist between the paralleled transformers is calculated internally.
When using the ΔVAR2 method, the control's load current input is to be connected to the
load current CT of the transformer which is controlling the tap position. The control's
circulating current is to be connected to the load current CT for the opposite paralleled
transformer.
Section 6
1VAC388793-MB A
Configuration
406
TCC300
User Manual
Summary of Contents for TCC300
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