ABB REC650 ANSI, Applications Manual, Page: 46 / 370

Item Data
High positive sequence source impedance at the HV
side
j10 Ω (about 2 100 MVA)
Low positive sequence source impedance at the HV
side
j3.5 Ω (about 6 000 MVA)
High zero sequence source impedance at the HV
side
j20 Ω
Low zero sequence source impedance at the HV
side
j15 Ω
Positive sequence source impedance at the LV side ∞ (no generation in the 22 kV network)
Only settings that need adjustment due to the specific application are
described in setting examples. It is recommended to keep the default
values for all settings that are not described. Refer to the technical manual
for setting tables for each protection and control function.
Refer to the setting guideline section in the Application manual for
guidelines on how to set functions that are not presented in the setting
examples.
Use the parameter setting tool in PCM600 to set the IED according to the
calculations for the particular application.
3.1.1 Calculating general settings for analogue inputs 8I 2U
The analogue input module has the capability of 8 current inputs (1 A) and 2 voltage
inputs.
The 145 kV current CTs (three phase current transformer group) are connected to inputs
1 – 3 (A,B,C).
The 22 kV current CTs (three phase current transformer group) are connected to inputs 4
– 6 (A,B,C).
The 145 kV neutral point CT is connected to input 7 (IN).
The input 8 is not used. The input is used for connection of the low voltage side neutral
point CT (not in this application)
Section 3
1MRK 511 286-UUS A
REC650 setting examples
40
Application manual