The C On Tinu Ous; Tap; Rating; Target And Seal-In Unit - GE IACS3A Instructions Manual

Time overcurrent relays, form 800 and up
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Th e
i ns ta nta ne ous
mi ni mum s e tti ng
2 . 0 -16 . 0
a mpe r e
8 . 0
a mpe r e s )
has
c onne c te d
for
c onti nuous r a ting of 6 . 0 a mpe r e s .
The c onti nuous a nd one - s e c ond r a ting s for the i ns ta nta neous uni ts
a r e s h own i n Table VI I.
RANGE
0.5 - 4.0
2.0 - 16.0
10.0 - 80.0
20.0 - 160.0
t
Hi ghe r cur r e nts
lengths
for mula
tt
S
Se r i e s c onne c ted, P
=
TAR GET AND SEAL- I N UNIT
Rati ng s for th e ta r g e t/s ea l-i n uni t a r e s h own i n Table V I I I .
D.C. resistance
Minimum operating
Carry continuously
Carry 30 amps for
Carry 10 amps for
Hz
60
impedance
Hz
50
impedance
GEK-34054
uni t
has
25
or
a mpe re s ,
wh i ch e ve r
i ns ta nta ne ous
uni t,
a
c onti nuous
h i g h - r a ng e
ope r a ti on
TABLE V I I
CONTINUOUS
tt
s
0.5 -
2.0
p
1.0 -
4.0
s
2.0 -
8.0
p
4.0 -
16.0
s
10.0 -
40.0
p
20.0 -
80.0
s
20.0 -
80.0
p
40.0 - 160.0
( I)
may be a pplied for s h or te r
of
ti me
( T)
l=A
TABLE V II I
±
10%
a
c onti nuous
r a ti ng
i s
s ma lle r .
wh e n s e t on th e
r a ti ng
of
3. 0
( 4. 0 - 1 6 . 0
t ONE

RATING

SECOND
0.75
25.0
1.5
50.0
3.0
130.0
6.0
260.0
15.0
400.0
25.0
600.0t
600.0t
25.0
25.0
600.0t
i n
a c corda nc e
T
Pa r a lle l c onne c te d
=
0.2
(ohms)
8.3
(amperes)
0.2
(amperes)
0.37
(seconds)
0.05
0.45
(seconds)
50.0
(ohms)
42.0
7
of
t i me s
1. 5
E xample :
low r a ng e
( 2 . 0 -
a mpe r e s ,
a nd
wh e n
a mpe r e s )
h a s
K
625
2,500
16,900
67,600
160,000
360,000
360,000
360,000
wi th
the

TAP

2.0
0.24
2.0
2.3
2.2
20.0
0.65
0.54
The
a

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