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V: 1.0 Revised: Aug. 2017
Chapter 2: Installation
15
Figure 2.3.5
The meter requires AWG22-14 as the wires to connect the power supply.
Voltage Input:
The AcuRev 1312 can measure up to 240V LN/415V LL AC for a three phase system or 400VLN AC
for a single phase system.
Potential Transformers (PT’s) must be used when the system voltage is higher than the meter’s
rated voltage. The rated secondary output from the PT is typically 100V-120V. Please ensure to
select an appropriate PT that will maintain the measurement accuracy of the AcuRev 1312. For
measuring a system with a WYE wiring configuration, the PT’s rated input or primary voltage rat
-
ing should be equal to or close to the phase voltage of the system to utilize the full range of the
PT that will be used. Similarly, when measuring a system with a Delta wiring configuration then
the PT’s rated input or primary voltage rating should be equal to or close to the line voltage of
the system.
A fuse that is rated for 1A/600V should be used when connecting the voltage inputs to the meter.
The meter requires AWG22-14 as the wire size to the voltage input terminals.
Current Input:
Current Transformer’s(CT’s) are used in most practical applications. The AcuRev 1312 supports
four CT input types, 5A, 1A, 80mA and 100mA. CT’s must be used if the system’s rated current
is greater than 5A. The CT used should be Measurement Canada approved to maintain revenue
grade accuracy of system. The distance between the CT and the meter should be as short as
possible as the length of the of CT leads will affect the accuracy.
The meter requires AWG22-14 as the wire size to the current input terminals.
Note: The secondary side of the CT should not be open circuit in any circumstance when the
system is energized. There should not be any fuse or switch in the CT loop. It is suggested to
ground one end of the CT secondary.
1A FUSE
L
N
AcuRev 1312
Power Supply
Содержание AcuRev 1312
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