Test Plan Items
A-86 72A-1898 Rev. A 11/01
Monday, November 26, 2001 1:09 pm
Average Velocity
Parameters
Figure A.100 shows the Average Velocity parameters and specifications
available during a circuit breaker.
Figure A.100 Average Velocity – Parameters and Specifications
Average Velocity
– Open
The velocity zone must be entered before the test for the velocity in that
zone to be calculated by the Instrument.
There are five methods of specifying the zone for Average Velocity
measurements during open test.
• Distance – Distance
• Distance – Time
• Time – Time
• Contact Open – Time
• Contact Open – Distance
These serve as the Open and Close conditions that define each zone.
These same parameters apply to Velocity Open Zone 2.