how to make a continuous high voltage of frequency 15KV, JLCPCB
The isolation measure
All electrical installations and equipment
respects insulation characteristics in order to
allow them to operate safely. That
either at the level of the connection cables, the
disconnection and protection devices or
level of motors and generators, insulation of
electrical conductors is made using materials
having a high electrical resistance so as to
limit as much as possible the circulation of currents outside
drivers.
The quality of these insulations deteriorates over the years due to
the constraints to which the equipment is subjected.
This alteration induces a reduction in the resistivity
electrical insulation which thereby creates a
increase in leakage currents which lead to
incidents whose seriousness can be substantial in terms of
safety of people and property but also
in downtime costs in industry.
Beyond the measurements taken during start-up
on new and refurbished elements, the periodic test
insulation of installations and equipment allows
to guard against such incidents by putting in place
preventive maintenance. It allows to detect
ageing, and therefore the premature degradation of
insulation characteristics before it reaches
a level sufficient to cause the incidents cited
upper.
At this stage it is necessary to distinguish between two types of
measurements often confused: the dielectric test and the
insulation resistance measurement.
The dielectric withstand test, also commonly called
“breakdown test” expresses the ability of an insulator to
withstand a medium-duration overvoltage without
produce a primer. In reality this overvoltage
may be due to lightning or induction generated
by a fault on a power transmission line.
The main objective of this test is to ensure that
the construction rules relating to the lines of
leakage and isolation distances have been respected.
The test is often carried out by applying a voltage
alternative but it can also be achieved with
a continuous voltage. The device needed for this type
measurement is a dielectrometer. The result obtained
is a voltage value most often expressed as
kilovolt (kV). The dielectric test has a character
more or less destructive in the event of a defect, depending on the
test levels and the energy available in the device.
Therefore they are reserved for type tests on
new or even renovated equipment.
how to make a continuous high voltage of frequency 15KV, JLCPCB
The isolation measure
All electrical installations and equipment
respects insulation characteristics in order to
allow them to operate safely. That
either at the level of the connection cables, the
disconnection and protection devices or
level of motors and generators, insulation of
electrical conductors is made using materials
having a high electrical resistance so as to
limit as much as possible the circulation of currents outside
drivers.
The quality of these insulations deteriorates over the years due to
the constraints to which the equipment is subjected.
This alteration induces a reduction in the resistivity
electrical insulation which thereby creates a
increase in leakage currents which lead to
incidents whose seriousness can be substantial in terms of
safety of people and property but also
in downtime costs in industry.
Beyond the measurements taken during start-up
on new and refurbished elements, the periodic test
insulation of installations and equipment allows
to guard against such incidents by putting in place
preventive maintenance. It allows to detect
ageing, and therefore the premature degradation of
insulation characteristics before it reaches
a level sufficient to cause the incidents cited
upper.
At this stage it is necessary to distinguish between two types of
measurements often confused: the dielectric test and the
insulation resistance measurement.
The dielectric withstand test, also commonly called
“breakdown test” expresses the ability of an insulator to
withstand a medium-duration overvoltage without
produce a primer. In reality this overvoltage
may be due to lightning or induction generated
by a fault on a power transmission line.
The main objective of this test is to ensure that
the construction rules relating to the lines of
leakage and isolation distances have been respected.
The test is often carried out by applying a voltage
alternative but it can also be achieved with
a continuous voltage. The device needed for this type
measurement is a dielectrometer. The result obtained
is a voltage value most often expressed as
kilovolt (kV). The dielectric test has a character
more or less destructive in the event of a defect, depending on the
test levels and the energy available in the device.
Therefore they are reserved for type tests on
new or even renovated equipment.
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