AMETEK MX CTSL - Manual (Page 108)

User Manual
California Instruments
9.5 Voltage Fluctuation
The IEC 61000-4-14 test standard
between test levels. This fluctuation
a 0.25 period slew starting at
fall (t
f
) time of the voltage fluctuation
a) Single Period Fluctuation
Lasts for one period of the fundamental
changes linearly for one quarter
illustrated in the figure below.
b) Complete Fluctuation
Five single period fluctuations
[Unom ± delta Unom] The test
value. This is illustrated in the
Note: Prior versions of the MXgui (< 1.20.0.1)
voltage fluctuation. Both have
4-14 test standard.
MX-CTSL
Revision H
standard specifies a specific voltage fluctuation methods
fluctuation is a combination of a series of 5 single period
270° phase angle of the voltage waveform. Thus,
) time of the voltage fluctuation includes the following two items:
Fluctuation
fundamental frequency. The voltage changes starts at the
quarter period until it reaches the next voltage level (delta Unom / 5) at 0°. This is
below.
b) Complete Fluctuation
fluctuations as shown above combine into the complete voltage fluctuation
test level is held for a 2 second period and then stepped
the figure below which combines figures 1b and 1c of the
Note: Prior versions of the MXgui (< 1.20.0.1) required a user selection between
have been combined per above description to more closely
CTSL Compliance Test System
105
methods for changing the voltage
period fluctuations, each having
Thus, the complete rise (t
r
) and
the 270° phase angle and
Unom / 5) at 0°. This is
fluctuation to the test level.
stepped back up or down to its nominal
the IEC 61000-4-14 test standard.
between a slew or a stepped
closely follow the IEC 61000-