ABB RER620 Technical Manual page 347

1MAC309294-MB F
RER620
Technical Manual
selected as the phase to which the voltage transformers is connected. The Vt line enable
should be TRUE to consider the settings Vt config line and Vt line phase. Table 311 clearly
explains the phases selected with different possible selection of appropriate settings in
Sectionalizing recloser modes.
In case of mid-point mode, the numbers of voltage transformers connected can be either 1
or 3. So the Vt config line can be either "1" or "3". The phase selection is similar as in
sectionalizer mode but Vt config line cannot be "2".
In case of tie-point mode the 3 phases of both sources are considered. Hence in tie-point
mode the Vt config line and Vt config load settings should be selected as "3" and Vt line
enable and Vt load enable should be selected as 'TRUE". That is tie-point recloser should
always have 3 voltage transformers connected to each source.
In case of disabled mode no phase is considered.
Table 311: Selection of phases in Sectionalizing recloser mode
Line side src Vt config line Vt line phase
S1 3
S1 1
S1 1
S1 1
S1 2
S1 2
S1 2
S2 3
S2 1
S2 1
S2 1
S2 2
S2 2
S2 2
The outputs S1_DISABLED and S2_DISABLED indicate whether the respective source
is enabled or disabled. The output will be TRUE if respective source is disabled.
The condition for any source to be enabled in sectionalizer or midpoint modes is the
respective source should be selected as Line side source and Vt line enable should be
"TRUE" and the respective source enable input should be triggered with a positive pulse.
Vt line enable
Phases Selected
Not valid TRUE S1_V_A
S1_V_B
S1_V_C
PhA TRUE S1_V_A
PhB TRUE S1_V_B
PhC TRUE S1_V_C
PhA TRUE S1_V_A
S1_V_B
PhB TRUE S1_V_B
S1_V_C
PhC TRUE S1_V_C
S1_V_A
Not valid TRUE S2_V_A
S2_V_B
S2_V_C
PhA TRUE S2_V_A
PhB TRUE S2_V_B
PhC TRUE S2_V_C
PhA TRUE S2_V_A
S2_V_B
PhB TRUE S2_V_B
S2_V_C
PhC TRUE S2_V_C
S2_V_A
Section 5
Control functions
341