146
Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 6
Protective Trip and Warning Functions
Table 179 - Ground Fault Trip Delay (Parameter 243)
Ground Fault Trip Level
Ground Fault Trip Level (Parameter 244) allows you to define the ground fault
current in which the E300 Electronic Overload Relay trips and is adjustable
from:
•
0.500…5.00 A (Internal)
•
0.020…5.00 A (External)
Table 180 - Ground Fault Trip Level (Parameter 244)
Ground Fault Warning
The E300 Electronic Overload Relay indicates a ground fault warning if:
•
No warning currently exists
•
Ground Fault Warning is enabled
•
Current is present
•
Ground Fault Inhibit Time has expired
Ground Fault Trip Delay (Parameter 243)
Default Value
0.5
Minimum Value
0.0
Maximum Value
25.0
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
10
Units
Seconds
Ground Fault Trip Level (Parameter 244)
Default Value
2.5
Minimum Value
0.5 (internal); 0.02 (external)
Maximum Value
5.00
Parameter Type
UINT
Size (Bytes)
2
Scaling Factor
100
Units
Amps
IMPORTANT
The ground fault inhibit timer starts after the maximum phase load current
transitions from 0 A to 30% of the minimum FLA rating of the device or the
ground fault current is greater than or equal to 50% of the minimum ground
fault current rating of the device. The E300 Electronic Overload Relay does not
begin monitoring for a ground fault condition until the Ground Fault Current
Inhibit Time expires.
Содержание Allen-Bradley E300
Страница 1: ...E300 Electronic Overload Relay Bul 193 592 User Manual...
Страница 124: ...124 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 4 System Operation and Configuration Notes...
Страница 128: ...128 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 5 Operating Modes...
Страница 292: ...292 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 6 Protective Trip and Warning Functions...
Страница 304: ...304 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 7 Commands Notes...
Страница 372: ...372 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 8 Metering and Diagnostics...
Страница 460: ...460 Rockwell Automation Publication 193 UM015D EN P February 2015 Appendix A Specifications Notes...
Страница 501: ...Rockwell Automation Publication 193 UM015D EN P February 2015 501 Parameter List AppendixB Notes...
Страница 502: ...502 Rockwell Automation Publication193 UM015D EN P November 2013 Appendix B Parameter List...
Страница 545: ......