Specifications

7SR242 Duobias Settings, Configuration & Instruments Guide
Meas
Earth
1
W1
5
th
Harm
V
Nom.
V
Secy
F
V
Prim
7SR242_-2_A_1-0CA0
W1
2
nd
Harm
ICT
ICT
W1
Ia
Line
W1
Ia
prim
W1
Ia
Nom.
W1
1
st
Harm
W1
Ia
secy
W1
I EF
Der.
W1
I
Seq.
Ia
Op.
Ib
Op.
Ic
Op.
W1
Rel.
Ia
W1
Rel.
Ib
W1
Rel.
Ic
W2
Rel.
Ia
W2
Rel.
Ib
W2
Rel.
Ic
W1
5
th
Harm
W1
2
nd
Harm
W1
Ib
Line
W1
Ib
prim
W1
Ib
Nom.
W1
1
st
Harm
W1
Ib
secy
W1
5
th
Harm
W1
2
nd
Harm
W1
Ic
Line
W1
Ic
prim
W1
Ic
Nom.
W1
1
st
Harm
W1
Ic
secy
Meas
Earth
2
W2
I EF
Der.
W2
I
Seq.
W2
5
th
Harm
W2
2
nd
Harm
W2
Ic
Line
W2
Ic
prim
W2
Ic
Nom.
W2
1
st
Harm
W2
Ic
secy
W2
5
th
Harm
W2
2
nd
Harm
W2
Ib
Line
W2
Ib
prim
W2
Ib
Nom.
W2
1
st
Harm
W2
Ib
secy
W2
5
th
Harm
W2
2
nd
Harm
W2
Ia
Line
W2
Ia
prim
W2
Ia
Nom.
W2
1
st
Harm
W2
Ia
secy
V/F
W1
Therm
W1
Therm
W1
Therm
W2
Therm
W2
Therm
W2
Therm
Ib
Rest.
Ia
Rest.
Ic
Rest.
Figure 1-6: Schematic Diagram: Current and Voltage Meters (includes optional functionality)
©2010 Siemens Protection Devices Limited Chapter 2 Page 12 of 20