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( b )
T r a n s v e r s e Mode H ipot Te s t s ( Be tween c i r c u i t s ) :
For
h i pot
capac i to r s
capac i to r bu s e s i n s i de
jumped to p rov i d e t h e fou r g roups of c i r cu i t s s hown in Tab l e X I I .
H i po t
vol t age
c i r cu i t s .
C I RCU I T GROUP I NG FOR TRANSVERSE MODE H I POT TESTS
CIRCUIT GROUP
AC Current
AC Potential
DC Control Power
Output Contacts
An a l t e r na t e t e s t u s i ng a 5 0 0 vo l t DC meg g e r can be pe r formed
be tween t h e c i r cu i t g r oups o f Tab le X I I w i t h t h e s u r g e capac i to r s
conne c t e d
i n
t e s t t h e r e la y to i t s f u l l d i e l e c t r i c r a t i ng,
c a s e s of deg r aded i ns u l a t ion .
3 .
A f t e r
the
capac i to r s s hou l d b e r econnected t o t h e s u r g e capac i to r bu s e s a n d a l l
e x t e r na l
w i r i ng
t e s t s
de s c r i be d
s hou l d t h e n be r epea t ed .
D e t a i l ed Te s t i ng I n s t r u c t i ons
Ma k e c e r t a i n a l l the r e l a y s e t t i ng s h ave been made.
b e i n a c co r dance w i th the s e t t i ng ca lcu l a t i o n s .
( a )
Ba s e
r each
Al l t h r ee pha s e s e t t i n g s shou l d be the s ame .
( b )
P e r ce n t
o n t h e f ron t o f t h e r e lay .
2 .
The
fo l low i ng
(�)
and t h e r e lay r each s e t t i ng ( Z R ) ·
a n g l e
( a )
P l ace
t h e "OSB" plug
o n l y ) .
GEK-49861
t e s t s
between
mu s t
b e
t empo r a r i l y
the r e lay .
can
th en
be
TABLE X I I
t he i r
no rma l
h i pot
o r
me g g e r
t o
Te r m i na l
1 0
u nde r
t h e
ACCEPTANCE
( Z Rl l
i s
s e t
r e s t r a i n t
( T )
p rocedu r e
is
i n
c i r cu i t s
o f
d i s co n ne c t e d
The r e l ay
appl i ed
between
JUMPER BETWEEN TERMINAL NUMBERS
1, 2, 3, 4, 5, and 6
15, 16 and 17
9, 19 and 20
7,
1 1, 12, 13, 14 and 18
8,
ma nne r .
Wh i l e
t e s t i ng
i s
shou l d
be
r e connec t e d .
TESTS
on
the
t ap b lock
i s
s e t
on
the p r e c i s i on
r ecomme nded
to
the "OUT" pos i t i on
19
t h e
r e l a y,
t h e
f r om
t h e
t e rmi na l s
s ho u l d be
any
t wo
g r oups
t h i s
me t hod
doe s
i t w i l l d e t e c t some
comp l e t ed,
t h e
The
s e c t ion
o f
t h i s
The s e shou l d
The s e t t i ng s a r e:
a t
r ea r
o f
po t e n t i ome t e r
check
t h e
ba s e
( fo r
Type SLY8 1B
s u r g e
s u r g e
o f
no t
s u r g e
r ea c h
book
r e l a y .
r e a c h
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