Omicron Lab CT Analyzer, User Manual

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CT Analyzer User Manual
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8.1 Safety Notes and Notes for Using Quick Test
Warning: For VT ratio measurement, the CT Analyzer output has to be
connected to the primary side of the VT. Connecting the CT Analyzer output to
the secondary side of the VT by mistake will cause hazardous voltages on the
primary side!
Warning: Using the DC current mode of the Advanced measurement type may
be very dangerous! It is not possible to interrupt the circuit using a standard
relay or a standard circuit breaker. Due to the arc, contact clearances of up to
10mm are required to switch off the current.
Warning: Feeding an inductance with DC current will charge the inductance.
The CT Analyzer does not perform automatic discharge of the inductance after
measurements with Quick Test . Risk of electric shock! Wait until the
inductance has discharged completely before touching any connections or
disconnecting the measurement leads of the
CT Analyzer .
Caution: When using Quick Test , input "Sec" of the CT Analyzer is able to
measure voltages up to 150V
RMS
. Do not connect voltages above 150V or
even mains voltages to the CT Analyzer inputs! This will damage the
CT Analyzer !
Caution: When performing measurements on CTs using Quick Test , consider
that the CT Analyzer does not perform automatic demagnetization of the CT.
Therefore, it may be necessary to additionally run a normal CT test with its
automatic demagnetizing cycle following
Quick Test measurements for a CT.