Table Xi; Target And Seal-In Unit - GE IACS3A Instructions Manual

Time overcurrent relays, form 800 and up
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UNIT RANGE
AMPERES
0. 5
2. 0
16. 0
10. 0
80. 0
-
160.0
20. 0
-
TARGET AND SEAL- IN UNIT
T h e t a r g et
a n d s ea l- i n u n i t
a n d 2. 0 a mper es .
in
t h e
lower -amper e
h oldi ng
t h e
r i gh t -hand
s et t i ng ,
f i r s t r emove one s cr ew f r om t h e lef t h a n d s t a t i on a r y con t a c t
a n d
pla ce i t
i n
u n des ired t a p a n d pla ce i t on t h e left h a n d s t a t i on a r y con t a ct
t h e
fir s t
s cr ew
neces sa r y t o pr even t
ou t
of
a dju s t men t .
s a me t ime.
C onn ect
r ela y
1.
a mmet er a n d load box so t h a t t h e cu r r en t ca n be con t r olled over a
r a ng e of 0 . 1 t o 2. 0 a mperes.
2.
Tu r n the t i me dia l t o the ZERO (0 ) TIME- DIAL Pos it i on .
3.
In cr ea s e t h e cu r r en t s lowl� un t il t h e s eal- in u n i t pi cks u p.
Table XII.
4.
Move
t h e
t i me
s ea l-i n u n i t s hould rema in i n t h e pi cked- u p pos i t i on .
5.
Decr ea s e
t h e
See Table XII.
GEK-34054

TABLE XI

MINIMUM
AMPERES
4. 0
3. 6
14. 4
72. 0
144. 0
The r ela y i s s hipped f r om t h e f a ct or y wi t h t h e t a p
pos it i on .
t h e
des ir ed
t a p.
wa s
r emoved.
t h e ri g h t -hand s t a t i ona r y con t act
Scr ews
s h ou ld
s t u ds
a n d
1
dial a wa y
fr om
cu r ren t
s lowly
TABLE XII
PICK-UP
TAP
CURRENT
0. 14 - 0. 195
0.2
2. 0
1. 40 - 1. 95
CALIBRATION
AMPERES
4. 0
16. 0
80. 0
160. 0
h a s an oper a t i ng
The
t a p
con t a ct .
Nex t
r emove
See
Fig u r e
2.
never
be lef t
2
(See
Fig u r e
14 )
t h e
ZERO
T IME-DIAL
u n t i l
t h e
s ea l- i n
DROPOUT
CURRENT
0. 05 OR MORE
0.50 OR MORE
14
MAXIMUM
AMPERES
4. 5
17. 7
89. 0
177 . 0
coil t a pped a t
s cr ew
is
t h e
s cr ew
T o
cha n g e
t h e
t h e
s cr ew
f r om
wher e
Th i s
pr ocedu r e
f r om g et t i n g
in
t a ps a t
both
t o
a
DC
s ou r ce,
P os i t i on ;
un i t
dr ops
0 . 2
t a p
t h e
i s
t h e
See
t h e
ou t .

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