Allen-Bradley E300 User Manual

Rockwell Automation Publication 193-UM015E-EN-P - October 2015 405
Protective Trip and Warning Functions Chapter 6
Table 339 - Over kVAR Generated Trip Level (Parameter 400)
Over kVAR Generated Warning
The E300 relay indicates an Over kVAR warning if:
• No warning currently exists
• Over kVAR Generated Warning is enabled
• Current is present
• Voltage is present
• Over kVAR Generated Inhibit Time has expired
• The total reactive power (kVAR) generated is equal to or greater than the
Ov
er
kVAR Generated Warning Level
When the Over kVAR Generated Warning conditions are satisfied, the:
• TRIP/WARN LED flashes a yellow 2-long / 6-short blink pattern
• Bit 5 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 Generated Warn Level
Over kVAR Generated Warn Level (Parameter 401) allows you to define the
reactive power (kVAR) generated at which the E300 relay indicates a warning. It
is user-adjustable from 0…2,000,000 kW.
Table 340 - Over kVAR Generated Warn Level (Parameter 401)
Default Value 0.000
Minimum Value 0.000
Maximum Value 2000000.000
Parameter Type DINT
Size (Bytes) 4
Scaling Factor 1000
Units kVAR
IMPORTANT
The Over kVAR Generated 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 relay does not begin
monitoring for an over reactive power (kVAR) generated condition until the
Over kVAR Generated 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

Allen-Bradley E300 Specifications

General

Type	Electronic Overload Relay
Mounting	DIN Rail or Panel Mount
Protection Class	IP20
Voltage Range	24…690 V AC/DC
Communication Options	EtherNet/IP, DeviceNet
Protection	Overload, phase loss, ground fault
Operating Temperature	-20°C to 60°C