ABB 615 Series ANSI, Техническое руководство

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1MAC050144-MB C
Section 3
Basic functions
615 series ANSI 63
Technical Manual
3.6 Fault records
The fault recording period begins from the pickup event of any protection function and
ends if any protection function trips or the pickup(s) is restored before the trip event. If a
pick-up is restored without an trip event, the pick-up duration shows the protection
function that has picked-up first.
Pick-up duration that has the value of 100% indicates that a protection function has tripped
during the fault and if none of the protection functions has been tripped, Pick-up duration
shows always values less than 100%.
The Fault recorded data Protection and Pick-up duration is from the same protection
function. The Fault recorded data trip time shows the time of the actual fault period.
The fault-related current, voltage, frequency, angle values, shot pointer and the active
setting group number are taken from the moment of the operate event, or from the
beginning of the fault if only a start event occurs during the fault. The maximum current
value collects the maximum fault currents during the fault. In case frequency cannot be
measured, nominal frequency is used for frequency and zero for Frequency gradient and
validity is set accordingly.
Measuring mode for phase current and residual current values can be selected with the

A Measurement mode setting parameter
If some functions in relay application are sensitive to start frequently it
might be advisable to set the setting parameter
Trig mode to
“Fromoperate”. Then only faults that cause an operate event trigger a
newfault recording.