Radian RD-30 Operation Manual page 7

Product Introduction
In addition, the RD-30 can analyze harmonic distortion complete with each order's phase and
amplitude. This information can be studied in the laboratory with Radian software for a more
complete understanding of conditions at specific meter installations. Additionally, voltage and
current waveforms can be viewed in real-time and then captured for later investigation. Test
results of both revenue billing meters and field standards can be stored enabling complete and
detailed histories to be recorded.
Clamp On Current Transformer Input
The RD-30 features a clamp-on current transformer input per phase. This option allows true
customer load testing without removing the meter from service.
Voltage Inputs, Current Inputs, Auxiliary Power Inputs
The RD-30 provides full autoranging capability for the Potential Input, Auxiliary Power Input
and Current Input using electronically compensated input transformers designed by Radian.
The voltage and current inputs contain an enhanced design of Radian's original electronically
compensated transformer. This feature ensures the unit will never be damaged by applying a
signal to the incorrect input. Current input options are 120 amps maximum per phase or 200 amps
maximum per phase direct connection.
With the safety of the user in mind, the connections have been updated to an insulated socket
design. The Potential Input and Auxiliary Power are 4mm connections and the Current Inputs are
6mm connections for the 120 amp model and bolt-on current connections for the 200 amp model.
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RD-30 Operations Manual