|
AC Leakage Current Probe
|
|
Model 2620
|
|
The
Model 2620 measures leakage current shunted to ground caused by insulation
faults.
|
|
It
enables the operator to locate failures when they occur, or anticipate them
before they
|
|
occur, without shutting down equipment or spending
hours troubleshooting.
|
|
|
|
It is designed specifically for locating low current faults on
high current loads. The detector
|
|
is a sensitive AC current transformer capable of measuring
differential or leakage current
|
|
as low as
500µA, and may be used to measure current up to 400A continuous.
|
|
|
|
The
Model 2620 provides two output ranges: 1mV/mAAC or 1mV/AAC.
|
|
|
|
The output leads are terminated with standard 4mm banana plugs
capable of interfacing
|
|
with any
standard multimeter. The use of a digital multimeter with analog bargraph
is
|
|
recommended; Digital
to provide accurate readings, and an analog bargraph
to track trends.
|
|
|
|
The
Model 262 measures leakage currents on single or multi-phase systems. Currents
measured
|
|
may be in or out of phase, balanced or unbalanced.
|
|
|
|
Principle: when clamping around all conductors, the net
magnetic field at any instant in time
|
|
will be zero if all the conductors surrounded by the leakage
current detector are supplying all
|
|
the current
delivered to and received from the load. If any current is diverted through
any
|
|
alternate path, such as an insulation breakdown to ground, the
net loss will be detected
|
|
producing an
output proportional to the amplitude of the fault current.
|
|
|
|
The
Model 2620 may also be used as a highly accurate clamp-on current probe. With
its 4”
|
|
jaw
opening and range of 500µA to 200A, the Model 2620 provides a versatile way
to analyze
|
|
unbalanced
current measurements, leakage values on grounding conductors and ground
|
|
loop currents.
|
|
|
|
Features
|
|
Very high sensitivity
|
|
Differential or leakage current from 500µA
|
|
Current up to 400A
|
|
Two switch-selectable measurement ranges: 4AAC/400AAC
|
|
Large inside jaw diameter (>4”) allows use on large or
multiple conductors
|
|
Work with single-, dual- and three-phase networks
|
|
Connect directly to DMMs on mV or
VAC range
|
|
|
|
Applications
|
|
Preventive maintenance
|
|
Equipment troubleshooting on electrical distribution
systems
|
|
High accuracy low-current measurements
|
|
Measure fault currents on three-phase, three-wire systems
|
