GE MDP

GEK
-
100682
RANGES
AND
SETTINGS
The
following
indicates
the
ranges
of
standard
models
.
Nominal
Currcntlnverse
Time
Unit
5
Amperes
Phase
Unit
Models
(
1
-
3
)
Phase
Unit
:
1.5
to
13.125
Amps
,
in
cumulative increments
of
0.375
,
0
,
750
,
1
,
50
,
3.0
,
6.0
A
Ground
Unit
,
model
1
:
0
,
5
to
4
,
375
Amps
,
in
cumulative
increments
of
0.125
,
0.250
,
0
,
50
,
1
,
0
,
2.0
A
Ground
Unit
,
model
2
:
1.5
to
13.125
Amps
,
in
cumulative increments
of
0.375
0.750
,
1
,
50
,
3.0
,
6.0
A
Ground
Unit
,
model
3
:
0.1
to
0.875
Amp
,
in
cumulative increments
of
0.025
,
.
0.050
,
0
,
10
,
0.2
,
0.4
A
v
-
5
Amperes
Phase
Unit
Model
(
7
)
Phase
Unit
:
0.5
to
4
,
375
Amps
in
cumulative
increments
of
0.125
,
0.25
,
0.50
,
1.0
,
2.0
A
Ground
Unit
,
model
7
:
0.5
to
4.375
Amps
in
cumulative increments
of
0.125
,
0.250
,
0.50
,
1.0
,
2.0
A
Nominal
Current
Inverse
Time
Unit
1
Ampere
Phase
Unit
Models
(
4
-
6
)
Phase
Unit
,
models
4
-
6
;
0
,
3
to
2
,
625
Amps
in
cumulative
increments
of
0
,
075
,
0.150
,
0.30
,
0.60
,
1.20
Ground
Unit
,
model
4
:
0
,
1
to
0.875
Amp
in
cumulative
increments
of
0.025
,
0.050
,
0.10
,
0.2
,
0.4
A
Ground
Unit
,
model
5
:
0.3
to
2.625
Amps
in
cumulative increments
of
0.075
,
0.150
,
0.30
,
0
,
6
,
1.2
A
Ground
Unit
,
model
6
:
0.05
to
0.4375
Amp
in
cumulative increments
of
0.0125
,
0.0250
,
0.050
,
0.1
,
0.2
I
*
-
*
Time
Delay
(
TOC
)
(
independent
for
phase
and
ground
)
Instantaneous
Unit
Time
Delay
(
independent
for
phase
and
ground
)
Depends
on
the
curve
selected
,
Five
Inverse
Time
curves
are
available
(
see
Figures
1
,
2
,
3
,
4
,
and
5
)
as
well
as
four
definite
times
(
maximum
time
2
,
4
,
6
,
8
seconds
)
,
all
in
the
same
relay
.
0
-
1.55
seconds
in
50
-
millisecond
steps
.
Phase
Operating
Curves
Curve
Selection
i
Inverse
/
BS
142
*
(
for
1
Amp
models
)
,
Long
Time
Inverse
,
Veiy
Inverse
,
and
Extremely
Inverse
.
Four
families
of
definite
time
characteristics
,
with
maximum
values
of
2
,
4
,
6
,
and
8
seconds
Instantaneous
Unit
Pickup
(
independent
for
phase
and
ground
)
1
-
31
times the
pickup
of
the
TOC
setting
.
Setting
of
zero
(
0
)
disables
instantaneous
unit
(
X
)
no
multiples
selected
,
Between
each
family
of
curves
,
a
specific
curve
can
be
selected between
0.5
and
10
in
cumulative
steps
of
0
,
5
,
1
,
2
,
2
and
4
for
5
Amp
relays
.
A
1
Amp
model
'
s
range
is
from
0.05
to
1.0
in
cumulative
steps
of
0.05
,
0.1
,
0
,
2
,
0
,
2
,
and
0
,
4
.
i
8
Courtesy of NationalSwitchgear.com