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Y
Y
ni
nu
pri
CT
VT
=
⋅
sec
GUID-2F4EAEF7-0D92-477F-8D4C-00C7BEDE04CB V1 EN
(Equation 36)
ni
CT
CT ratio for the residual current IG
nu
VT
VT ratio for the residual voltage VG
Example: Admittance setting in the secondary is 5.00 milliSiemens. The
CT ratio is 100/1 A and the VT ratio is 11547/100 V. The admittance
setting in the primary can be calculated.
Y
milliSiemens
A
V
milliSiemens
pri
=
⋅
=
5 00
100 1
11547 100
4 33
.
.
GUID-9CFD2291-9894-4D04-9499-DF38F1F64D59 V1 EN
(Equation 37)
Section 4
1MAC059074-MB A
Protection functions
382
615 series ANSI
Technical Manual
Summary of Contents for Relion 615 series
Page 1: ... RELION PROTECTION AND CONTROL 615 series ANSI Technical Manual ...
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Page 39: ...Section 17 Glossary 1181 Table of contents 615 series ANSI 33 Technical Manual ...
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