Figure 7 (0195A4990-1) Average-Operating-Time Curves Of The Mho Unit In The Cey51A Relay - GE CEY51A Instructions Manual

~
z
~~
L
-l
W
a::cr
o
~<f
V l -
w\['\
:>>-
a::
w
:JU
U
w
WI
~
....
-z
~-
GEK-1275
R · ·
AVERAGE OPERATING. TIME OF MHO UNIT
_+-__ _ __
~
___
BASIC MINIMUM REACH-3.00HM5
RES TRA INT TAP SE TTING
=
1000P
. ANGLE OF MAXIMUM TORGUE: 60°
f-·-+--+---+-f--~--+FAULT
IMPEDANCE ANGLE=60o LAG
SOURCE IMPEDANCE ANGLE=85
c
LAG
1----+----+-
f--- ---"1--t
REL AY VOLTAGE BE FO RE FAULT: 120 V •
.
.
--:-r--
i:!
1---------_-----------1
r--+--t---+---'I----+-~
BASIC MINIMUN REACH MULT IPLY FAULT
CURRENTt-~-: ~--I
I,;; '"
BY ~::
~
.
"
.
,
..
j , • •
. .
• I • • , I I .
~4.5~~
__
~-+---I
.. ' I· .
0.2
0.375
0.4
0.75
0.8
1.5
3.0
6.0
15
8
7.5
4
3;75
2
I
0.5
-1 : : :
:"
.
I
~--
I :: : '\ .
.:
.
-..:...:..
III
4.ow+.:---.:~~r-----~-----~;."....:·+_I-l
oJ)
<f
al
' . " I , .
I I t ·
t.,
I
• • ~. • • 1 I
. ,. I
~
••
--I •••
.
,
,
..
~
.. .
;
.........
,
, , .. t
+
t- .. ,
"
,
.....
_. !
:
,::
::
: .. i
I.u
I ..
'.......,.....~·
.. , ............ ""
,t'.:: ..
: .. '
::::I~·~·k:~::
:::: ::::
. 4 1 ,
~
....... .
~
.5
~
r-:-:-:-:-
....
...
,-
.-.,
.:. ~~
,-_
.
....;:
..
-
• • • •
1~'
....... ' t t--+ ....
-ri ... t-.,. ........ .
......--t-- . .
_.-+.
'~"
,'"
. j . . . . . . . . . . . . . . . .
~.....
'T+-- ...... .
: : :.:: ::lj r;;:
::tjt..t-;1
;:~; ~~.!l:mn~H:rH-:illi
::;:
: : : l : ~
!:
~: ~
I t t
t
1
! t
11 f::~~ ~~- r~~.8.!:tt~H-4+ ~~ ~:::
'I'~
I " ,
"1'11'.' , ...
"I'
"0 '[Ij
"fj
ffih fit' til:
I
I;
+1ll
':1:
II::
:::! I:!: ttL
f·1 1t
I :-r;t:
~*t'
I,
j , .
I,
f ".,. " . , , .,
,+- •.
1 4
~ ~
1'+1 ..
+..,
t
t
t
f • • j ,
. ,I.
~ ..
• I
i
....
\
, . , f
~
,
'
..
• to.
I •
_~
• ·1"
I
~
, '"
1-
t · • •
, I • • . - .
j t
~.t"
••
:::: rt
~~ :-m~
;:T ...
0
20
+-t- .....
30 40
50
, , 't
t
I· t· 1 " .
,~-+
....
60 l' l' I'
1
+
+!
I ' • • . , ..
;-'1
.t.;
.1
t!
+ t
:! rtL! :;;:
~;~ttt~f; ~1;
tll-l-;:::: ;::: I,
FAULT CURRENT,
~~:!:
.
:~ittn~
:::: };.:
3¢
AMP~RES
Figure 7 (0195A4990-1) Average-Operating-Time Curves of the
MHO Unit in the CEY51A Relay
32