ABB REQ650 - Page 50

Item Data
Low positive sequence source
impedance
j3.2 ohm (about 6000 MVA)
High zero sequence source
impedance
j8 ohm
Low zero sequence source
impedance
j5 ohm
High positive sequence source
impedance at the remote line end
j10 ohm (about 1900 MVA)
Low positive sequence source
impedance at the remote line end
j3.2 ohm (about 6000 MVA)
High zero sequence source
impedance at the remote line end
j8 ohm
Low zero sequence source
impedance at the remote line end
j5 ohm
CT ratio 1000/1 A
VT ratio at A and B
143
3
0.11
3
kV
Maximum power transfer on the line 180 MVA
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 Technical
manual for setting tables for each protection and control function.
Refer to setting guideline section in Application manual for
guidelines on how to set functions that are not presented in setting
examples.
Use parameter setting tool in PCM600 to set the IED according to
calculations for the particular application.
The following protection functions are used:
• Instantaneous phase overcurrent protection
• Four step delayed phase overcurrent protection
• Instantaneous residual overcurrent protection
• Four step delayed residual overcurrent protection
• Breaker failure protection
• Pole discordance protection
Section 3 1MRK 505 291-UEN A
REQ650 setting examples
44
Application manual