ABB REB650 - The Basics of the High Impedance Principle

3·Id
IEC10000185_2_en.vsd
IEC10000185 V2 EN-US
Figure 29: Application of a 1Ph High impedance differential protection
HZPDIF function as busbar protection
Id
IEC05000177-2-en.vsd
IEC05000177 V2 EN-US
Figure 30: Application of a 1Ph High impedance differential protection
HZPDIF function
6.1.2.1 The basics of the high impedance principle
SEMOD54734-153 v9
The high impedance differential protection principle has been used for many years
and is well documented in literature publicly available. Its operating principle
provides very good sensitivity and high speed operation. One main benefit offered
Section 6 1MRK 505 388-UEN B
Differential protection
74 Busbar protection REB650 2.2 IEC
Application manual