Tap; Time Test - GE IACS3A Instructions Manual

movi ng
the ma g n e t
moving i t away i n c r ea s e s the ti me .
Se t th e r ela y
Us i ng
the te s t c on n e c ti on s of Fi g u r e
i ts c ontacts with in
pos i ti on s sh ould pi c k up at tap va lue ±5% of tap va lue .
Ti me Te s t
Se t the r e la y
*
Us i ng th e te s t conne cti on s
( 1 0. 0 amp) to the
±0. 07 s e c ond. At
o pe r ati n g time sh ould ag r e e with the ti me -cur ve va l ue ±7 % .
I NSTANTANEOUS UNI T
Ma ke s u r e that the
wh i ch i t i s to o pe r a te
a nd c onnected
7 )
po s s i ble , u s e the
conti n uous r a ti n g .
Loos e n the
s e tti ng. See Fi g ure
pi c kup; tu r n i ng
the c ur r e nt s l owly un ti l the un i t pi c ks
re pea t this ope r a tion
On c e th e d e s i r ed pi c kup va lue i s r ea c he d , ti g h te n the loc kn ut.
The instantaneous uni
the
leave test current
Wi th the un i t
conn ecti on s ) and th e ta r g e t in the
at th e maximum
li mi ts i n Table XI.
*I n d i c ate s re vision
GEK-34054
towar d the d i s k
0.5
at the
±2% of ta p
5
at the No.
of Fi g u r e
r e lay. The
2 ti me s tap c ur r en t a nd 10 ti me s ta p cur r en t,
i ns tantaneous
(s e e Inte r nal-Con n e c ti o n s -D i a g ra m Fig ure s 5 or
as i n di cated in
h i gher range,
loc knut a nd tu r n
2. Tur n i ng
the pole pi e c e
unti l the
CAUTION
t is ra ted
on too
long,
c onnected
c a li br a tion ma r k;
s ha ft d e c re a s e s
ti me -di a l po s i ti o n
1 4, the ma i n un i t s ho uld
va lue c urre n t.
ti me - di a l pos i ti o n
14, apply
r e la y shoul d o pe r a te
un i t i s wired for the
Tes t-Ci rc ui t Fig ure
s i nc e the h i g h e r
the pole pi ece
the pole p i e c e
down decrea s e s
up. I t may be
des i red pi c kup
1.5 times m�n�mum
may
as it damage the unit.
for h i gh - r a ng e
"Down " po s ition,
th e pi c kup
13
th e ti me ,
and 2. 0 a mp
Al l o th e r
a nd a mp tap.
2.0
5 ti me s ta p cur re n t
in 1. 31 s econds
r a n g e
14. Whe n e ve r
ra n g e ha s a hi g h e r
towa r d the de s i r ed
up in c re a s e s
the pi ckup. B ring
nece s s a ry to
value i s obta i n e d .
Do
pickup.
ope r ati on ( pa r a lle l
c he c k the pickup
s ho uld be wi thi n
whi le

tap.

c lo s e
tap
the
i n
th e
up
not
the