Omicron CPC 100 Reference Manual

CPC 100 V1.41
8 - 28
Figure 20:
Ramping test card with
parameters and
measurement values of
the three ramps
Time sequence of the three ramps:
Figure 21:
Time sequence of the
three ramps to
determine the pick up
and drop off values of
an Overcurrent relay
Ramp 1:
Set to output a ramped current
signal from 100.0A to either 200.0A
in 10s, or until the trigger condition
"Binary" occurs.
Here, trigger condition "Binary"
means: the relay contact picks up. In
this moment, ramp 1 terminates and
the series continues with ramp 2.
The measurement table shows for
ramp 1 that the relay contact picked
up after 7.175s at a current value of
170.29A.
Ramp 3:
Because ramp 1 did not reach the 200A due to the
trigger signal, ramp 3 starts with 170.29A, and then
ramps down to zero with the set steepness (200.0A to
0.0A in 10s) until the trigger condition "Binary" occurs.
Here, trigger condition "Binary" means: the relay
contact drops off. Since there are no further ramps
defined, in this moment the sequence terminates.
The measurement table shows for ramp 3 that the relay
contact dropped off 1.1s after ramp 3 started at a
current value of 152.35A.
Ramp 2:
Pause time. Test current is output
for 1s.
t
10s
I
21s
0A
200A
r
a
m
p
1
100A
170.29A
152.35A
0s 7.175s 1.1s
initially defined ramp
pick up
drop off
ramp 2
ramp 3
1s

Omicron CPC 100 Specifications

General

Brand	Omicron
Model	CPC 100
Category	Test Equipment
Language	English