AZT-9
ZPrAE Sp. z o.o.
33
10. TECHNICAL PARAMETERS OF AZT-9 PROTECTION
DEVICE
A
ux
ilia
ry
pow
er
suppl
y
Rated auxiliary voltage U
pn
:
220 V DC or 110 V DC
Or other as agreed.
Permissible range of auxiliary voltage change
(0,8 ÷ 1,15)
U
pn
Power consumption
< 15 W
Pow
er
s
upp
ly
fro
m
c
urre
nt
tr
an
sf
or
m
er
s
Miminal current allowing for operation
3-phase = 3×0,2
I
n
1 phase = 1×0,6
I
n
Ready-to-operate time while fed from current
transformers
< 250 ms – if energy storage were supplied before
power decay
< 40 s – with empty Energy storage and current from
transformers I
L1
+ I
L2
+ I
L3
≥ 1,0 I
n
Tr
ip
pin
g c
irc
uit
s
Number of energy storages
2
Energy storage capacity
1320 uF
Rated output voltage
300 V DC
Energy cumulated in storages
118 J (2 × 59 J)
Loading time of energy storages (auxiliary supply) < 40 s
Overshoot time
≤
40 ms
Delay of tripping channels
15 ms ÷ 45 ms
A
na
logue
–
c
ur
re
nt
input
s
Number of measuring inputs in AZS module
4 inputs
Rated current
I
n
1 A lub 5 A
Measuring range
40
I
n
Starting current setup range
0,2
I
n
÷
40
I
n
, co 0,1
I
n
Guaranteed error of starting current setup
±
(0,5%
I
nastawy
+ 5 mA) – dla
I
n
= 1 A
±
(0,5%
I
nastawy
+ 25 mA) – dla
I
n
= 5 A
Power consumption of measuring circuits for
I
n
without auxiliary power supply
< 8 VA / (phase input) – supply from one phase
< 6 VA / (phase input) – 3-phase supply
Power consumption of measuring circuits for
I
n
with
auxiliary power supply
< 1,3 VA / (phase input)
Power consumption for
I
n
in earth-fault circuit
< 0,25 VA
Permissible permanent current
2,5
I
n
Thermal strength 1s
100
I
n
Dynamic strength of current circuits
200
I
n
B
in
ar
y
input
s
MZA module
Number of signal inputs
2 inputs
Rated voltage
U
wn
220 V DC / 230 V AC or other as agreed
Time delay
30 ms
Power consumption of signalling circuits
< 0,5 W / input
Starting threshold
0,7
U
wn
±
5%
WD module (option)
Number of signal inputs
8 inputs (active only with auxiliary power supply)
Rated voltage
U
wn
220 V/230 V r other as agreed, AC/DC configurable
Power consumption of signalling circuits
< 0,5 W / input
Starting threshold
0,7
U
pn
±
5%
Operation mode
AC or DC
Turn-on time t_on
0…60 s
Shut-off time t_off
0…60 s
Setup range
1 ms