Chapter 15 – Installation
Connection diagram for 1 voltage element connection
1-element connection: Connection diagram of 1
element (phase A, B or C).
1-element connection: Connection diagram of 1
element (neutral).
In all cases, the equipment will compute the phase-to-ground voltage and the neutral voltage.
5.8 HIGH-SPEED ANALOG VOLTAGE INPUTS (TW)
The RA333 module has 3 high-speed analog inputs for measurement of TW voltage, with a sampling
frequency of 5 MHz. All channels are identified from 301 to 303.
Each analog input has two terminals: positive voltage, and negative, which are used for one phase voltage,
as shown in Figure 116.
Figure 116: Analog Input Terminals to TW Measurement
Connections shall use insulated flexible wires of 1.5 mm² cross section, 8 mm ring terminals, and M3 holes.
Before making the electrical connection, make sure the signal is applied in accordance with the technical
specifications of the equipment. For information about analog voltage inputs specifications, refer to Chapter
17 Specifications.
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