ABB RET670 - Setting Parameters

AngleRCA
Forward
Area
Iop = I2
Vpol=-V2
Reverse
Area
ANSI10000031-1-en.vsd
ANSI10000031 V1 EN
Figure 198: Relay characteristic angle given in degree
In a transmission network a normal value of RCA is about 80°.
VPolMin: Minimum polarization (reference) voltage % of VBase.
I>Dir: Operate residual current level for directional comparison scheme. The setting is
given in % of IBase. The pickup forward or pickup reverse signals can be used in a
communication scheme. The appropriate signal must be configured to the
communication scheme block.
3.7.5.3 Setting parameters
Table 98: NS4PTOC (46I2) Group settings (basic)
Name
Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable Operation
IBase 1 - 99999 A 1 3000 Base value for current settings
VBase 0.05 - 2000.00 kV 0.05 400 Base value for voltage settings
Table continues on next page
Section 3 1MRK504116-UUS C
IED application
446
Application manual