Common Settings For All Steps - ABB RES670 Applications Manual

1MRK 511 407-UEN C
8.2.2.1
Phasor measurement unit RES670 2.2 IEC
Application manual
SeqTypeUPol: This is used to select the type of voltage polarising quantity i.e. Zero
seq or Neg seq for direction detection.
SeqTypeIPol: This is used to select the type of current polarising quantity i.e. Zero
seq or Neg seq for direction detection.
SeqTypeIDir: This is used to select the type of operating current quantity i.e. Zero
seq or Neg seq for direction detection.

Common settings for all steps

AngleRCA: Relay characteristic angle given in degree. This angle is defined as
shown in Figure 55. The angle is defined positive when the residual current lags
the reference voltage (Upol = 3U
RCA
IN>Dir
IEC05000135 V5 EN-US
Figure 55: Relay characteristic angle given in degree
In a normal transmission network a normal value of RCA is about 65°. The setting
range is -180° to +180°.
polMethod: Defines if the directional polarization is from
• Voltage (3U or U
0 2
• Current (3I · ZNpol or 3I
0
• both currents and voltage, Dual (dual polarizing, (3U
I · ZNpol)).
2
Normally voltage polarizing from the internally calculated residual sum or an
external open delta is used.
or U )
0 2
Upol = -3U
Operation
)
·ZNpol where ZNpol is RNpol + jXNpol), or
2
Section 8
Current protection
or -3U
0 2
IEC05000135-5-en.vsdx
+ 3I · ZNpol) or (U
0 0
M15282-81 v10
+
2
135