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Test Plan Items
A-42 72A-1898 Rev. A 11/01
Monday
, November 26, 2001 1:09 pm
Figure A.43 shows an example for voltage, where the selection made
calculates the timing of the Main Contact (t
2
) and resistor switch (t
1
), after
the voltage controlled by the designated channel reaches 70% of the full
scale selected for that channel, if the T0 option is selected in ”Resistor
Switch Timing – Close” on page A-77.
Figure A.43 Close Timing from Voltage Measurement
AUX Contact
Transition
Timing a Close test based on the transition of a contact for a particular
channel is achieved through the combination of the Close Pulse, Timing
Event and Timing Channel parameters (Figure A.44).
Figure A.44 Set Contact Channel
0 10 20 30 40 50 60
t
1
t
2
170 A
Volts
200
0
70% FS = 0 .7 x 200 = 140 V