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69
4 Data Scales and Units
Code Condition
Value/Range
Notes
Data Scales
Vmax
Voltage scale
×
PT Ratio, V
2
Imax
Current scale
×
CT Ratio, A
1, 3
Wiring 4LN3, 3LN3, 3BLN3
Vmax
×
Imax
×
3, W
4
Pmax
Wiring 4LL3, 3LL3, 3BLL3,
3OP2, 3OP3, 3DIR2
Vmax
×
Imax
×
2, W
Nominal frequency 25, 50
or 60 Hz
100 Hz
Fmax
Nominal frequency 400Hz
500 Hz
Data Units – Low Resolution Option
U1
1V
U2
1A
U3
1kW/kvar/kVA
Data Units – High Resolution Option
PT Ratio = 1
0.1V
U1
PT Ratio > 1
1V
U2
0.01A
PT Ratio = 1
1W/Var/VA
U3
PT Ratio > 1
1kW/kvar/kVA
See Device Options Setup for information on selecting the device resolution option.
1
CT Ratio = CT primary current/CT secondary current
2
The default Voltage scale is 144V (120V +20%). You can change it via the Device Data Scale setup (see Section 3.1) or via
the Device Options setup in PAS.
3
The default Current scale is 2
×
CT secondary current (2.0A with 1A secondaries, 10.A with 5A secondaries). You can change
it via the Device Data Scale setup (see Section 3.1) or via the Device Options setup in PAS.
4
Pmax is rounded to whole kilowatts. With PT=1.0, if Pmax is greater than 9,999,000 W, it is truncated to 9,999,000 W.
Provided
by
Northeast
Power
Systems,
Inc.
www.nepsi.com