07
9
.
1
Environmental
Protection
In
order
to
protect
the
environment
,
the
product
or
product
parts
should
be
disposed
of
according
to
the
industrial
waste
treatment
process
,
or
be
sent
to
the
recycling
station
for
assortment
,
dismantling
and
recycling
according
to
local
regulations
.
9
.
2
Warranty
period
The
warranty
period
of
the
product
is
30
months
from
production
(
delivery
)
date
if
the
product
is
kept
under
normal
storage
conditions
and
the
package
or
the
product
itself
is
in
good
condition
.
If
the
warranty
period
has
expired
,
please
inspect
the
product
and
make
sure
it
meets
all
the
requirements
before
installing
and
using
the
product
.
The
following
circumstances
are
not
within
the
scope
of
warranty
(
excluding
repair
or
replacement
):
1
)
Damage
due
to
improper
use
,
storage
or
maintenance
by
user
2
)
Damage
due
to
dismantle
or
repair
by
unauthorized
agency
or
personnel
or
by
user
itself
3
)
The
warranty
period
or
service
life
of
the
product
has
expired
.
4
)
Damage
due
to
force
majeure
5
)
Other
man
-
made
damages
3
The
terminal
screws
of
the
capacitor
generate
heat
or
even
turn
into
black
during
operation
.
The
wire
nuts
are
loose
or
not
tightened
properly
during
installation
.
If
the
nuts
are
tightened
properly
,
the
reason
might
be
long
-
term
overcurrent
due
to
harmonic
current
amplification
in
the
grid
.
Tighten
the
nuts
,
replace
nuts
,
flat
gaskets
,
elastic
washer
if
necessary
.
4
The
fuse
in
branch
circuit
blows
frequently
(
or
miniature
circuit
breaker
trips
frequently
);
the
CJ19
contactor
fuses;
the
current
-
limiting
resistance
burns
frequently;
the
surface
of
XD1
current
-
limiting
reactor
case
cracks
,
etc
.
These
symptoms
are
typical
when
the
grid
harmonic
is
too
big
or
there
is
intermittent
resonance
in
the
grid
.
Conduct
grid
harmonic
test
or
check
if
there
are
harmonic
sources
such
as
frequent
converter
,
rectifier
,
intermediate
frequency
furnace
or
electric
-
arc
furnace
installed
at
load
end
.
See
3
.
3
.
2
for
harmonic
suppression
measures
.
5
Sometimes
there
is
buzzing
sound
in
the
cabinet
during
operation
.
There
is
harmonic
current
passing
through
the
capacitor
.
User
must
take
harmonic
suppression
measures
if
the
harmonic
current
is
too
big
(
same
as
4
)
6
There
is
significant
current
increase
when
adding
a
capacitor
into
a
group
.
Either
abnormal
power
frequency
resonance
(
underloading
),
or
harmonic
current
amplification
or
there
is
resonance
.
Same
as
4
7
Slight
deformation
occurs
to
the
capacitor
case
after
the
capacitor
has
been
used
for
a
period
of
time
,
and
no
current
can
be
detected
.
Long
-
term
overtemperature
or
overcurrent
operation
of
the
capacitor
which
cause
self
-
healing
breakdown
of
internal
components
that
generates
gases
and
increases
internal
pressure
.
When
the
overpressure
protector
breaks
,
slight
deformation
can
occur
to
the
capacitor
case
.
Use
heat
dissipation
measures
to
lower
the
ambient
operating
temperature
of
the
capacitor
.
Select
products
with
higher
rated
voltage
.
Harmonic
suppression
measures
are
the
same
as
described
in
4
.
No
.
Faults
Cause
analysis
Troubleshooting
method
Environmental
Protection
and
Warranty
Period
BZMJ Series Self-healing Low Voltage Shunt Capacitors
