DynAmp RCEM, Инструкция по установке, эксплуатации и обслуживанию

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Installation, Operation and Service Manual RCEM
© 2012 DynAmp, LLC Page 17
43756 G
6. PREPARATION FOR USE
6.1 SYSTEM CHECKOUT AND PREPARATION
IMPORTANT
Make a system checkout when the equipment is received.
When unpacking or handling the current sensor assemblies,
treat them very gently; do not handle in such a manner as to
place strain on the current sensors. The current sensors
should ALWAYS be treated as delicate measurement
instruments.
6.2 RECTIFIER SHUTDOWN
WARNING
Disconnect the input side of the rectifier from the AC power
supply and disconnect the output side of the rectifier from the
load, or use your approved disconnect procedure to ensure
that no AC input is present and that cell-effect voltages from
the electrochemical process are not present during installation
of current sensors.
6.3 SENSOR MOUNTING AND CONNECTION CONSIDERATIONS
Once the rectifier has been safely taken off line, a current sensor may be safely placed
around each device (or related fuse or pigtail as circumstances dictate).
6.4 INSTALLATION INSTRUCTIONS
Make sure the current sensors and their output cables are clean before installing them in
the rectifier. If the current sensors and cables are not clean, the contaminants on them
may provide a conductive path for a high-voltage breakdown. Section 6 describes how to
check for such paths.
The Flexible Current Sensors are factory calibrated to DynAmp’s standard Flexible Current
Sensor circuit. All Flexible Current Sensors are interchangeable regardless of the physical
size.
To install current sensors in a rectifier:
a.) Place current sensors on device paths in the proper direction (conventional plus-to-
minus current flowing into the polarity dot). Proper Flexible Current Sensor mounting is
shown in Figure 6.1.