Rockwell Automation Publication 193-UM015D-EN-P - February 2015 219
Protective Trip and Warning Functions Chapter 6
Table 268 - Over kVAR Consumed Trip Level (Parameter 392)
Over kVAR Consumed Warning
The E300 Electronic Overload Relay indicates an Over kVAR warning if:
• No warning currently exists
• Over kVAR Consumed Warning is enabled
• Current is present
• Voltage is present
• Over kVAR Consumed Inhibit Time has expired
• The total reactive power (kVAR) consumed is equal to or greater than the
Over kVAR Consumed Warning Level
When the Over kVAR Consumed Warning conditions are satisfied, the:
• TRIP/WARN LED flashes a yellow 2-long / 4-short blink pattern
• Bit 3 in Power Warning Status (Parameter 12) sets to 1
• Bit 1 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Warning Alarm close
Over kVAR Consumed Warn Level
Over kVAR Consumed Warn Level (Parameter 393) allows you to define the
reactive power (kVAR) consumed at which the E300 Electronic Overload Relay
indicates a warning. It is user-adjustable from 0…2,000,000 kW.
Table 269 - Over kVAR Consumed Warn Level (Parameter 393)
Default Value 0.000
Minimum Value 0.000
Maximum Value 2000000.000
Parameter Type DINT
Size (Bytes) 4
Scaling Factor 1000
Units kVAR
The Over kVAR Consumed Inhibit Time starts after a phase voltage transitions
from 0V to 20V L-L and a phase of load current transitions from 0 A to 30% of
the minimum FLA setting of the device. The E300 Electronic Overload Relay
does not begin monitoring for an over reactive power (kVAR) consumed
condition until the Over kVAR Consumed Inhibit Time expires.
Default Value 0.000
Minimum Value 0.000
Maximum Value 2000000.000
Parameter Type DINT
Size (Bytes) 4
Scaling Factor 1000
Units kVAR
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