Bender NGRM700 - Page 47

Menu
47
NGRM7xx_D00292_07_M_XXEN/02.2022
Response values
For the delay times, see also page 60.
Menu
HRG
Menu
LRG
Parameter Setting range Explanatory notes
6.5.1
U
NGR
trip
10…90 %
Value in % of the nominal value at which
the trip relay and the ground-fault relay
trip. Note: The trip relay only trips if
"Ground-fault trip > on" has been
selected.
6.5.2
I
NGR
trip
10…90 %
6.5.3
> R
NGR
110…200 % (HRG)
200…500  (LRG)
Resistance value in % of the nominal
value (HRG) or  value (LRG) at which
the trip relay and the NGR-fault relay
operate.
6.5.4 —
< R
NGR
10…90 %
(HRG only)
6.5.5 6.5.4
t
NGR trip
On the
device:
t(NGRtrip)
0…48 h
Time delay between NGR fault detection
and shutdown by the trip relay. t
NGR trip
is added to the response time.
6.5.6 6.5.5
Ground-fault
trip
on
Ground fault: Trip relay switches after
the time delay t
trip
has elapsed.
NGR fault: Trip relay switches immedi-
ately (< 7.5 s) or after the time delay
t
NGR trip
(0…48 h) has elapsed.
off
1)
Ground fault: Trip relay does not switch.
NGR fault: Trip relay switches immedi-
ately (< 7.5 s) or after the time delay
t
NGR trip
(0…48 h) has elapsed.
6.5.7 6.5.6
t
GF trip
2)
On the
device:
t(GFtrip)
100 ms…48 h
Time delay between ground-fault detec-
tion and operation of the trip relay; only
used when "Ground-fault trip > on" has
been selected.
6.5.8 6.5.7 Alarm stored
on
Triggered trip relay must be reset manu-
ally (RESET or input I2)
off
Automatic restart attempts after t
restart
has elapsed (max. number like setting
"Number restart")