Vanguard VCBA ver.10.xx - Manual (Page 52)

REV 2 VCBA VERSION 10.xx SOFTWARE MANUAL
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4. This dialog box is used to define the Open Contact Analysis parameters. Enter the
Contact Low, Contact High, Contact Delta, Resistor On Low, Resistor On High, and
Resistor On Delta times (in milli-seconds) in each corresponding field.
NOTES
• Contact Low is the fastest Open time of the circuit breaker main
contacts.
• Contact High is the slowest Open time of the circuit breaker main
contacts.
• Contact Delta, also known as Contact Spread, is the maximum time
between the fastest and slowest contact time.
• Resistor On Low is the fastest Open time of the circuit breaker
insertion-resistor contacts.
• Resistor On High is the slowest Open Time of the circuit-breaker
insertion-resistor contacts.
• Resistor On Delta is the maximum time between the fastest and
slowest resistor contact time.
• Up to 20 characters can be entered in the Comment field.