IEC vector group ANSI designation Positive sequence no-load
voltage phasor diagram
Required delta CT connection
type on wye side of the
protected power transformer
and internal vector group
setting in the IED
Dyn11 D
AC
Y
IEC06000562 V1 EN-US
DAC/Yy0
YNd5 YD150
IEC06000563 V1 EN-US
DAB/Yy6
Dyn5 DY150
IEC06000564 V1 EN-US
DAC/Yy6
7.2  High impedance differential protection, single phase
HZPDIF (87)
IP14239-1 v4
7.2.1 
Identification
M14813-1 v4
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
High impedance differential protection,
single phase
HZPDIF
SYMBOL-CC V2 EN-US
87
1MRK 502 071-UUS A Section 7
Differential protection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 155
Application manual