Algodue ELETTRONICA UPM307 User manual

UPM307
UPM307 – ELETTRICAL CONNECTIONS AND WIRING
7.6 VOLTAGE AND CURRENT INPUTS
Connect the voltage and current inputs according to the pictures below.
NOTE. In case of Rogowski coils please check that YELLOW cable edge is connected
to S1 (signal) and the WHITE cable edge is connected to S2 (common).
3 phases 4 wires 3 current transformers (3.4.3)
direct connection connection with voltage transformer
3 phases 3 wires 3 current transformers (3.3.3)
direct connection connection with voltage transformer
1

UPM307
3 phases 3 wires 2 current transformers (3.3.2)
direct connection connection with voltage transformer
3 phases 3 wires 1 current transformer (3.3.1)
direct connection connection with voltage transformer
2

UPM307
3 phases 2 wires 1 current transformer (3.2.1)
direct connection connection with voltage transformer
single phase (1ph)
direct connection
WARNING!
Check that:
1. if the instrument must carry out bi-directional measurements to obtain correct measurements, the
connections must respect the polarities.
2. the connections are made according to the diagrams in the following section, respecting the cyclic
order of phases (important: L1 of the voltage input = L1 of the current input)
3. when voltage or current transformers (PT / CT) are used, in the input and output polarities must be
respected.
4. before disconnecting current input the load power supply is cut off.
f this is not possible, the secondary CT must be short-circuited.
3

UPM307
W R NG D AGRAMS W TH ROGOWSK CO LS CONNECT ON AND VOLTAGE D RECT
CONNECT ON (on request)
3phases, 4 wires, 3coils 3phases, 3wires, 3coils
7.6.1 Voltage specifications
The standard voltage specifications are listed below:
NOTE. The label on the meter defines the real configuration.
Input voltage
Input impedance
Load
600 (750) VAC L-L
> 1.3 Mohm
max 0.15 VA per phase
7.6.2 Current specifications
The phase and polarity of the input current are an essential parameters for a proper instrument operation.
The stardard current specifications are listed below:
NOTE. The label on the meter defines the real configuration.
Rated input current
Input impedance
Load
Isolation
Rogowski coils input (optional)
1 o 5 A programmable
approx. Ohm ca.
max VA per fase
max 150VRMS between phases
200÷49995 A on request
NOTES:
- Extract from manual (1MAUXX307017)
- Subject to change without notice
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