INSTRUCTION
MANUAL
-
MODEL
DLP
400-5-7
50A
12
thereby
protecting
all
internal
circuits. If
the
source
current
is
large
enough,
the
DC
input fuse
will
blow.
If
the
source
should
be
damaged
by
a
10A
load
or
is
not
short-proof,
it
may
be
desirable
to
incorporate
an
external
fuse
or
circuit
breaker to
protect
the
source.
The voltage
current
product
is also
monitored
to
prevent
an
overpower
condition
from
happening.
Accordingly,
the
current
limit characteristics are set
at
approximately
5.5A,
which are
maintained
to
approximately
140V,
at
which
time
the
current limit
characteristic
is reduced
as
the
input
voltage
is
increased, thereby
limiting
the maximum
power
which
may
be
programmed
into
the
Dynaload.
3.9
SPECIAL
APPLICATIONS
The Dynaload
may
be
used
for
AC
load
testing,
within
its
ratings,
by
the use
of
an external
bridge rectifier
so
that
the
Dynload
sees
pulsating
DC,
but the
AC
source
sees
an
AC
load.
The
effect
of
the
rectifier
is
to
slightly
distort the Dynaload
characteristics
at
low
voltages
and
currents.
The
Dynaload
is
not normally
recommended
for
testing AC
sources
above
60
cycles
due
to
its limited
speed
of
response,
unless
the
user
specifically
recognizes
the
load
characteristics
at
higher
frequencies.
The
Dynaload
may
also be
used
as
a
current
or
voltage
regulator
rather
than
a load
for
special
applications
as
described
in
Sections
3.2
and
3.6.
DXP400-5-75QA]
