1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
“ IR ” limp
Long time-delay overcurrent fault indicator
LED window
“ Ig ” limp
“ MENU ” Pushbutton
“ IR ” Knob switch
“ tR ” Knob switch
“ test ” Pushbutton
“ tsd ” Knob switch
“ Isd ” Knob switch
“ RESET ” Pushbutton
Return to previous menu; the intelligent controller software is reset;
RESET key must be pressed after the encoder switch position is adjusted;
the intellectual controller faulty tripping results in fault memory which
can be cleared only by pressing the RESET key;
LED window capable of showing the current for each phase, various setting parameters,
rated current, fault current, tripping time, and the like
Single-phase earthing fault indicator
“ Isd ” limp
Short-circuit short time-delay overcurrent
“ Ii ” limp
Short-circuit instantaneous overcurrent fault indication
Successively access to submenus at various levels by pressing the MENU key
To inquire the current for each phase at present:
recurrently select the contents in the menus at various levels
There are (0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95, 0.98, 1.0)In,
nine settings altogether, for the current multiple setting of long time-delay overcurrent.
There are (1, 2, 4, 8, 12, 16, 20, 24, 30)s, nine settings altogether,
for the time delay time setting of long time-delay overcurrent in case of 6IR.
There are (1.5, 2, 2.5, 3, 4, 5, 6, 8, 10)Ir, nine settings altogether,
for the current multiple setting of short-time short time-delay.
For the short-circuit short time-delay time setting, there are nine settings:
2
the inverse time limit, i.e., I t on(0.1, 0.2, 0.3, 0.4)s, the definite-time limit,
2
i.e., I t OFF (0.1 0.2 0.3 0.4)s and X, i.e., closing the short time-delay
There are (A, B, C, D, E, F G, H, J), nine settings altogether, for the current multiple setting
of single-phase earthing.
Button for simulating instantaneous tripping test
For the time setting of single-phase earthing, there are nine settings: the inverse time limit,
2
2
i.e., I t on(0.1, 0.2, 0.3, 0.4)s, and the definite-time limit, i.e., I t OFF(0.1 0.2 0.3 0.4)s, and X,
i.e., closing the single-phase earthing.
Short-circuit instantaneous current multiple setting.
“ Ig ” Knob switch
“ tg ” Knob switch
“ Ii ” Knob switch
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7. Intelligent controller and protective characteristics
7.1 User interface of the standard type controller
Pushbutton
“ “
Air Circuit Breaker
NA8G
Air Circuit Breaker
P-024
NA8G
P-023
7.2 Default interface and operation method for the standard type controller
The default interface for the standard type controller is described as follows: (The current for each phase to be selected
by pressing
"→")
Press
"
MENU
"
key
once
to
go
to
the
status
for
parameter
query
as
follows
,
and
then
press
"→"
to
go
to
query
the
setting
parameter
of
quadruple
overcurrent
protection
.
Default
interface
of
the
standard
type
controller
Status
for
parameter
query
─
setting
current
of
long
time
-
delay
Status
for
fault
query
─
tripping
current
Status
for
fault
query
─
tripping
time
Status
of
simulating
tripping
test
─
simulating
current
Status
of
simulating
tripping
test
─
simulating
time
Press
"
RESET
"
key
at
any
status
to
go
back
to
default
interface
.
Press
"
TEST
"
key
to
go
to
the
status
for
simulating
tripping
test
in
case
of
6
I
,
and
after
tripping
as
follows
:
R
Press
"
MENU
"
key
twice
to
go
to
the
status
for
fault
query
as
follows
,
show
the
latest
fault
information
:
Содержание NA1
Страница 1: ...Air Circuit Breaker Leading every step reliable new height ...
Страница 2: ...Air Circuit Breaker Leading every step reliable new height ...
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Страница 4: ...Page P 001 Page P 039 ACB Air Circuit Breaker NA8G NA1 ...
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