44
Power Quality Analyzer PowerPad
®
IV Model 8345
4.4.3 Three-Phase Network
For three-phase, 3-wire networks, indicate the current sensors that will be
connected: all 3 sensors (3A) or only 2 (A1 and A2, A2 and A3, or
A3 and A1)
For three-phase, 4-wire and 5-wire networks, indicate the voltage sensors
that will be connected: all 3 sensors (3V) or only 2 (V1 and V2, V2 and V3,
or V3 and V1)
4.4.4 Connection Procedure
Depending on the network, not every terminal or sensor needs to be connected.
The unused terminals must be connected to the N terminal; otherwise,
phantom voltages will occur on the open channels. If the N terminal is
not used, connect it to the GND terminal.
The following procedure helps minimize connection errors.
1. Connect the earth lead between the terminal and the network earth.
2. Connect the neutral lead between voltage terminal N and the network neutral.
3. Connect the neutral current sensor to the current terminal N and then clamp
the neutral cable.
4. Connect the phase L1 lead between voltage terminal L1 and network phase L1.
5. Connect the phase L1 current sensor to current terminal L1 and then clamp
the phase L1 cable.
6. Connect the phase L2 lead between voltage terminal L2 and network phase L2.
7. Connect the phase L2 current sensor to current terminal L2 and then clamp
the phase L2 cable.
8. Connect the phase L3 lead between voltage terminal L3 and network phase L3.
9. Connect the phase L3 current sensor to current terminal L3 and then clamp
the phase L3 cable.
If you connect a current sensor in reverse, you can correct the connection
directly in the configuration.
Press ,
, and then
(see § 3.4.3.3)