Rockwell Automation Publication 193-UM015D-EN-P - February 2015
51
Installation and Wiring
Chapter 2
Voltage Mode
Voltage Mode (Parameter 252) determines the method for how voltage is
monitored E300 Electronic Overload Relay. Select the connection type for the
appropriate power system.
Table 16 - Voltage Mode (Parameter 352)
Potential (Voltage) Transformer Ratio
The E300 Electronic Overload Relay sensing module catalog number
193-ESM-VIG-30A-CT can be used with step down potential (voltage)
transformers. PT Primary (Parameter 353) and PT Secondary (Parameter 354)
allows you to identify the turns ratio of the step down potential (voltage)
transformers in use. The E300 Electronic Overload Relay will automatically
adjust the measured voltage based on these two configuration parameters. Use
the primary voltage for your voltage protection settings.
Table 17 - PT Primary (Parameter 353)
Table 18 - PT Secondary (Parameter 354)
Default Value
0 = Delta direct or with PTs
Range
0 = Delta direct or with PTs
1 = Wye direct or with PTs
2 = Delta with Delta to Wye PTs
3 = Wye with Delta to Wye PTs
4 = Delta with Wye to Delta PTs
5 = Wye with Wye to Delta PTs
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
1
Units
Default Value
480
Minimum Value
1
Maximum Value
65535
Parameter Type
UINT
Size (Bytes)
2
Scaling Factor
1
Units
Amps
Default Value
480
Minimum Value
165535
Maximum Value
Parameter Type
UINT
Size (Bytes)
2
Scaling Factor
1
Units
Amps
Summary of Contents for Allen-Bradley E300
Page 1: ...E300 Electronic Overload Relay Bul 193 592 User Manual...
Page 128: ...128 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 5 Operating Modes...
Page 304: ...304 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 7 Commands Notes...
Page 502: ...502 Rockwell Automation Publication193 UM015D EN P November 2013 Appendix B Parameter List...
Page 545: ......