GE EPM 5200 Benutzerhandbuch
EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL
3–5
EPM 5300 Series Meters
Chapter 3: Electrical
Installation
GE Consumer & Industrial
Multilin
Multilin
Electrical Installation
3.1
Connecting the Current Circuit
Install the wiring for the current at 600V AC insulation as a minimum. The cable connector
should be rated for 6 Amps or greater and have a cross-sectional area of 16 AWG
minimum.
should be rated for 6 Amps or greater and have a cross-sectional area of 16 AWG
minimum.
Mount the current transformers (CTs) as close as possible to the meter for best accuracy.
The following table illustrates the maximum recommended distances for various CT sizes,
assuming the connection is via 16 AWG cable.
The following table illustrates the maximum recommended distances for various CT sizes,
assuming the connection is via 16 AWG cable.
Table 3–1:
CT Size and Maximum Distance
DO NOT leave secondary of the CT open when primary current is flowing. This causes high
voltage that will overheat the secondary of the CT. Use a shorting block on the secondary
of the CT.
voltage that will overheat the secondary of the CT. Use a shorting block on the secondary
of the CT.
CT Size
Maximum Distance (CT to Meter)
2.5 VA
10 Feet
5.0 VA
15 Feet
7.5 VA
30 Feet
10.0 VA
40 Feet
15.0 VA
60 Feet
30.0 VA
120 Feet