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Cable insulation – Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C-Frame) - ForGe Control User Manual

Page 69

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Rockwell Automation Publication 7000L-UM301D-EN-P - June 2014

69

Drive Installation

Chapter 2

Cable Insulation

The cable insulation requirements for the PowerFlex 7000 drive are given in the
tables below.

Table 2 - Cable Insulation Requirements for 18 Pulse and 6P / AFE Drives with Isolation
Transformer

Table 3 - Cable Insulation Requirements for “Direct-to-Drive” Technology

The following table identifies general wire categories that will be encountered
when installing the PowerFlex 7000 Drive. Each category has an associated wire
group number that is used in the following sections to identify the wire to be
used. Application and signal examples along with the recommended type of cable
for each group are provided. A matrix providing the recommended minimum
spacing between different wire groups run in the same tray or separate conduit is
also provided.

ATTENTION: Voltage ratings shown in the following tables are peak line-to-
ground. Some cable manufacturers rate voltage line-to-line RMS. Ensure the
cable meets the rating specified in the following tables.

System Voltage (V, RMS)

Cable Insulation Rating (kV) (Maximum Peak Line-to-Ground)

Line Side

Machine Side

2400

≥4.1

≥2.2

3000

≥5.12

≥2.75

3300

≥5.63

≥3.0

4160

≥7.1

≥3.8

6000

≥10.8

≥5.5

6300

≥11.4

≥5.8

6600

≥11.8

≥6.0

System Voltage (V, RMS)

Cable Insulation Rating (kV) (Maximum Peak Line-to-Ground)

Line Side

Machine Side

2400

≥2.2

≥2.2

3000

≥2.75

≥2.75

3300

≥3.0

≥3.0

4160

≥3.8

≥3.8

6000

≥5.5

≥5.5

6300

≥5.8

≥5.8

6600

≥6.0

≥6.0