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Laatste Nieuws
Monitor Editie 2011-1
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The IR420 A-ISOMETER®
monitors the insulation resistance of unearthed
AC control circuits (IT systems) 0…300 V. If the
systems to be monitored include DC components as
for example switch mode power supplies or solenoid
valves, the operating and display characteristics
may be affected. The response values apply to pure
AC systems only. A separate supply voltage allows
de-energized systems to be monitored too |
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The “Offline monitor”
IR420-D6 monitors the insulation resistance of
deenergized loads. These loads, e.g. fire pumps,
slidevalves drives, elevator motors or emergency
generators, either temporarily deenergized or
deenergized for the most time, are supplied from TN,
TT or IT systems. During the shutdown periods,
however, humidity or other effects may cause
insulation faults in the wiring or loads which may
go undetected. |
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Nieuw A-ISOMETER®
IR123P
Nieuw |
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The A-ISOMETER®
IR123P monitors the insulation resistance RF of an
unearthed AC system of 100...300 V against earth,
that is supplied by a mobile generator according to
DIN VDE 0100-551. The IR423 is suitable for AC
systems with operating frequencies of 22...65Hz as
well as for AC systems including DC components. The
maximum permissible system leakage capacitance Ce is
5 μF.
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DC control and
auxiliary circuits in accordance with DIN EN
60204-1: 1998-11: „Elektrische Ausrüstung von
Maschinen“ (Electrical equipment of machines), IEC
60204-1: 1997, EN 60204-1: 1997
Simple battery systems
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Binnenkort ISO-F1-IR155-32xx
Binnenkort |
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The A-ISOMETER® iso-F1 IR155-3203/-3204 monitors the
insulation resistance between
the insulated and active HV-conductors of an
electrical drive system (Un = DC 0 V…1000 V)
and the reference earth (chassis ground Kl.31).
The patented measurement technology
is used to monitor the condition of the insulation
on the DC side as well as on the AC motorside of the electrical drive system. Existing
insulations faults will be signalised reliably
even under high system interferences which can be
caused by motor control processes,
accelerating, energy recovering etc.
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Binnenkort ISO-F1-IR155-3210 Binnenkort |
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The A-ISOMETER® iso-F1 IR155-3210 monitors the
insulation resistance between the insulated
and active HV-conductors of an electrical
drive/charger system (Un = DC 0 V…800 V) and
the reference earth (chassis ground
Kl.31). The patented measurement technology is
used to monitor the condition of the
insulation on the DC side as well as on the AC motor
side of the electrical drive/charger system.
Existing insulations faults will be signalised
reliably even under high system interferences
which can be caused by motor/charger
control processes, etc.
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The IR423-D43-2
A-ISOMETER® monitors the insulation resistance of an
unearthed AC system of 0 … 300V to earth that is
supplied by a mobile generator according to the
NEN1010.
Special for the
Netherlands
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The IR425 A-ISOMETER®
monitors the insulation resistance of unearthed
AC/DC control circuits (IT systems) 0…300 V. DC
components existing in AC/DC systems do not
influence the measuring results. A separate supply
voltage source makes it possible to monitor
de-energized systems too.
**NEW** IR425-D4M1C with
analoge output 0/4-20mA. |
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Nieuw A-ISOMETER®
IR425-D6 Nieuw |
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The “Offline monitor”
IR425-D6 monitors the insulation resistance of
deenergized loads. These loads, e.g. fire pumps,
slidevalves drives, elevator motors or emergency
generators, either temporarily deenergized or
deenergized for the most time, are supplied from TN,
TT or IT systems. During the shutdown periods,
however, humidity or other effects may cause
insulation faults in the wiring or loads which may
go undetected. |
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The A-ISOMETERs® of the
IR470LY series monitor the insulation resistance of
unearthed AC and three-phase systems (IT-systems),
AC/ 3(N) AC 0….793 V. In combination with a coupling
device, the A-ISOMETERs® can also be used for
higher voltages. Due to the measuring principle,
insulation faults behind directly connected
rectifiers are indicated with increased response
sensitivity.
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Nieuw
A-ISOMETER®
IR485-486 Nieuw |
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The A-ISOMETER® IR485P and IR486P monitor the
insulation resistance of unearthed ACsystems up to
AC 460 V or DC systems up to DC 1000 V. Insulation
faults in DC circuits which
are directly connected to the AC system are only
monitored correctly when the
rectifiers carry a load current > 5…10 mA. Hence,
these devices are capable of being integrated
into converter systems.
Application in modern power supply systems
• Electric vehicle technology
• UPS systems
• Charging stations |
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AC, DC or AC/DC main
circuits, AC/DC main circuits with directly
connected DC components such as rectifiers,
converters, thyristor- controlled DC components, UPS
systems, battery systems
Heaters with phase
control, systems including switched-mode power
supply unitsIT systems
with high leakage capacitances, coupled IT systems
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Nieuw A-ISOMETER®
ISO-PV
Nieuw |
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The A-ISOMETER® of the iso-PV series is designed to
monitor the insulation resistance of
unearthed main circuits (IT systems) AC, AC/DC 0…793
V resp. DC 0…1100 V.
Solar systems containing
inverters and isolating transformers are often
designed as IT systems. iso-PV
variants using the AMPPlus measurement method
capable of adapting to slow voltage
fluctuations meet the particular requirements
of modern solar systems.
Application
• AC, DC or AC/DC main circuits
• Solar systems with directly connected inverters
• Solar systems with high system leakage
capacitances of up to 2000 μF
• Solar systems with high but slow voltage
fluctuations
• Systems including switched-mode power supplies
• Coupled IT systems
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AC, DC or AC/DC main
circuits, AC/DC main circuits with directly
connected DC components such as rectifiers,
converters, thyristor- controlled DC components, UPS
systems, battery systems
Heaters with phase
control, systems including switched-mode power
supply unitsIT systems with high leakage
capacitances, coupled IT system |
© Bender benelux bv
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