SATEC PM296 - Manual (Page 19)

Chapter 2 Installation 11
2.2 Electrical Installation
Before installation ensure that all incoming power sources are shut
OFF. Failure to observe this practice can result in serious or even fatal
injury and damage to equipment.
See General Schematic on page iv.
2.2.1 Power Source Connection
The power source can be dedicated-fused, or from a monitored voltage if it is
within the instrument’s power supply range.
AC power supply: line to terminal 16; neutral to terminal 15.
DC power supply: positive to terminal 16; negative to terminal 15.
2.2.2 Current Inputs
To ensure accurate readings, the input current should not exceed 2A RMS and
2.82A amplitude for the 1A CT secondary, or 10A RMS and 14.2A amplitude for
the 5A CT secondary.
Copper wiring 2.5 - 4 mm 2 (13 -11 AWG) should be used.
2.2.3 Ground
Connect the chassis ground of the PM296/RPM096 to the switchgear earth
ground using dedicated wire greater than 2 mm
2 /14 AWG.
2.2.4 Voltage Inputs
Input of 690V (Standard): To ensure accurate readings, the measured voltage
between terminals 2-5, 5-8 and 8-2 should not exceed 790V AC RMS, and the
measured voltage between terminals 2-11, 5-11 and 8-11 should not exceed
460V AC RMS and 695V amplitude. Use any of the seven wiring configurations
shown in Figures 2-6 through 2-12.
Input of 120V (Option U): To ensure accurate readings, the measured voltage
between terminals 2-5, 5-8, 8-2, 2-11, 5-11 and 8-11 should not exceed 144V AC
RMS and 225V amplitude. 120V input usually implies use of a potential
transformer (PT). The PT requires use of any of the four wiring configurations
shown in Figures 2-8 through 2-11.