Poznámky redaktora
2s, step 0.05s
0.10 30s, step 0.30-0.02xIn
0.6 xIn <10xIn2start-up
step 0.40-0.01s
0.13.1xIn
0.6xIn I2<10xIn
step 0.8 s,
step 0.1 t4< 1s, step 0.8 In.50
0.20xIn I4<1xIn
step 0.02xIn
0.05 t2< 0.5s, step 0.1 t4< step 0.10-0.06-0.20xIn I4<1xIn
step 0.
49/158
.1 1.9.0-7.02xIn
0.05xI1
W arning 0,3-h10I step 0,05xI' 10% 10+40 ms
(1) The minimum value this trip regardless the type curve set (self
protection).1xIn
< 30ms(3) 10%
G(4)
(t= k)
H 0.05s
@I >4In
± 15%
Rc
(Idn)
H Idn =3.
(3) no-trip time
(4) the protection disabled for current values greater than 4In, where 0.
(5) Max trip time
For all cases not covered the above hypotheses, the following tolerance values
apply:
Protections Trip threshold Trip time
L Release between 1.01xIn
3 t1< 144 s(1), step 3s
t1@ 3I1
Release between
1.1xIn
0.01s
± 7%,I In
g
± 10%,I In
g
The data
± 10% s
S
(t= k/i2)
H 0.05 and 1.20-0.5s t6< step 0.04 t2sel< 0.5 0.01s2start-up
where I>I4
± 10%
M CR
(t= k)
H 6.05 and1.80s(3) 20%
140ms@0.04 t4sel 0.2 xI1
± 10%, 6In
g
± 20%, 6In
g
S
(t= k)
H 0.25 20%
S 10% 20%
± 15% 60ms
G 10% 20%
Others 20%
Model 2234 Apparatus Scale
L2778
Doc-No- 2
Page No.0-10-20
-30A
0.01s2start-up
0.2.8 and greater than where I4> 0.1xIn
0.20xIn I4<1xIn
step 0.5s 10% The data
± 10% s
OT
(temp k)
□ Fixed, defined by
SACE
Instantaneous 5°C -
linst Automatic, defined
by SACE
Instantaneous
LC1/LC2 loads
control
H 50%^100% step 0.6 xIn <10xIn
step 0.1s t4< 1s, step 0.
(2) These tolerances are based the following assumptions:
- self-supplied relay full power (without start-up)
- presence auxiliary power supply
- two-phase three-phase power supply
- preset trip time 100 ms.80s(51
U
(t= k)
H I6< 90% %Unb.04 t4sel 0.02xIn
0.05 t2< 0.1 t4< step 0.01s4start-up
0.1xIn
< 30ms
0.05s
0.0xIn I5< 15xIn
step 0.01s
where I>I4
± 7%
The data
± 10% s
Gext
(t= k/i2)
H 0.12 Summary table the protection function settings for the PR122/P
Protection
Disabling
Disablingof
TRIPonly
Zoneselectivity
Start-upthreshold
t
or
£
e
£ al
£ er
h
1-
Trip Threshold Trip Time rip
th ld
to e
( )
T rip tim e
to (2)
L
(t= k/i2) curve
IEC 60255-3
□ 0.20xIn I4<1xIn
step 0.02xIn
0.5 In,
greater than In, where 0.01s4start-up
0.20 step 0.01s
where I4
± 7%
The data
± 10% s
G(4>
(t= k/i2)
H 0.01s 10xIn
± 7%,Ig< In
g
± 10%,Ig> In
g
± 15%, 6In
± 20%, 6In
g
(t= k)
H 1,5xIn I3< 15xIn
step 0.2 step 0.10 step 0.8 step 0.20xIn I4<1xIn
step 0.1 30s, step 0.4xIn I1< 1xIn
step 0.06s(5)
950ms@0.
step 1%
0.0-5.10 step 0.01s2start-up
@I In
g
± 15%
Gext
(t= k)
H 0.05s
0
