ABB SPAU 140 C User Manual And Technical Description page 34

Relay settings
14
The setting values are shown by the right-most
three digits of the display. An indicator close to
the setting value symbol shows when illumi-
nated which setting value is shown on the dis-
Setting Parameter
U /U Upper threshold voltage level above which the
max n
measured bus/line voltage is considered to be
energized.
U /U Lower threshold voltage level below which the
min n
measured bus/line voltage is considered to be
de-energized.
∆U/U
Max. difference allowed in bus/line voltage
n
magnitude
∆ϕ
Max. phase angle difference allowed in bus/line
voltage
∆f
Max. frequency difference allowed in bus/line
voltage
t Operate time (dead time) of the voltage-check
vc
function
t Checking time allowed for closing operation in
check
command mode operation (submenu of t
t Maximum length of closing signal in command
pulse
mode operation (submenu of t
t Operate time of circuit breaker operated by stage 1
CB13
Note!
When the display shows the indication "- - -", it
indicates that the synchro-check and voltage-check
functions of stage 1 are set out of operation by means
of the functional switchgroup SGF.
t Operate time of circuit breaker operated by stage 2
CB23
Note!
When the display shows "- - -", it indicates that the
synchro-check and voltage-check functions of stage 2
are set out of operation by means of the functional
switchgroup SGF.
Further, the checksums of the function selector
switchgroups SGF, SGB and SGR are indicated
on the display when the indicators adjacent to
the switch group symbols on the front panel
are lit. The function of each selector switch in
the relay is separately explained in the chapter
play at the very moment. All setting parameters
except the operation time of the circuit breaker
are common to both stages.
Setting range
0.5...1.0 x U
0.1...0.8 x U
step 0.01 x U
0.02...0.4 x U
step 0.01 x U
5...50°
step 1°
0.02...0.5 Hz
step 0.01 Hz
0.1...20 s
step 0.01 s
0.05...300 s
) step 0.01 s
vc
0.2...20 s
) step 0.02
vc
0.05...0.25 s
step 0.01 s
0.05...0.25 s
step 0.01 s
" Function selector switches". Further, see sec-
tion "Main menus and submenus of settings and
registers". An example of calculating the check-
sum is given in the general description of the
D-type SPC relay modules.
Default
values
0.5 x U
n n
0.1 x U
n n
n
0.02 x U
n n
n
5°
0.02 Hz
0.1 s
0.05 s
0.2 s
0.05 s
0.05 s