GE GCX51A - 5 Characteristics of the OHM and MHO Units on an Impedance Diagram; 6 Static and Dynamic Reach Data for the in the Short; 1.0 Ohm MHO Unit Used

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Figure
5
(
6305889
-
4
)
Characteristics
of
the
OHM
and
MHO
Units
on an
Impedance
Diagram
for
GCX
51
Relay
100
T
+
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90
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T
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:
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60
1003
70
z
STATIC
AND
DYNAMIC
ACCURACY
OF
THE
1.0
OHM
: ::
:
:
MHO
UNIT
IN
THE
SHORT
REACH GCX
51
A
AND
8
RELAYS
.
OATA
TAKEN
FROM
PHASE
-
TO
-
PHASE
FAULT
AT
MHO
UNIT
ANGLE
OF
MAXIMUM
T
0
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=
(
60
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LAG
)
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:
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STATIC
CHARACTERISTIC
DYNAMIC
CHARACTERISTIC
120
VOLTS
BEFORE
THE
FAULT
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CURRENT
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1.30
-
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CURRENT
UN
AMPERES
40
45
10
15
20
0
5
Figure
6
(
0178
A
7144
-
1
)
Static
and
Dynamic
Reach Data
for
the
1.0
Ohm MHO
Unit Used
in
the
Short
-
Reach
GCX
51
A
or
B
Relay
35
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