AMETEK CTS 3.0 - Manual (Page 147)

User Manual Compliance Test System 3.0
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15.6.1 Single Phase Reference Impedance
The CTS systems based on the ix Series use a programmable output impedance to meet the flicker
reference impedance requirements. All non-ix Series based CTS systems require the use of an
external reference impedance. Consult the factory for configuration information.
If the CTS system was supplied with a PACS-1RP (1251RP-CTS), the required single phase
reference impedance is built into the PACS-1RP unit. In this case, you can select the reference
impedance by putting the PACS unit in the Flicker mode by pressing the Mode switch on the front
panel of the PACS unit. The LED will indicate Flicker (for Flicker testing) or Bypass (for Harmonics
testing) mode. If the PACS-1 unit is configured for remote actuation of the flicker function, then the
CTS 3.0 Software will switch from bypass to flicker automatically depending on what test is being
run.
Reference Impedance
Phases 1
Flicker Mode:
Max. Current 18.5 A
Useable range 2.0 - 18.5 A
Bypass Mode:
Max. Current 40.0 A
Impedance @ 50 Hz in Flicker Mode:
Phase 0.24 + j0.15
Neutral 0.16 + j0.10
Accuracy < 5 %
Controls and Indicators
Flicker On/Off push button
Power Led
Bypass mode Led
Flicker mode Led
15.6.2 Three Phase Reference Impedances
The 15003iX-CTS three phase system
by default uses the programmable
impedance . Optionally, the OMNI-3-
18i lumped impedance can be used.
This separate 3.5 inch / 89 mm tall
rack mount unit needs to be connected
between the output terminals of the AC
source and the input terminals of the
PACS-3 unit. The OMNI-3-18i can be controlled from its front panel but is normally under control of
the CTS 3.0 software.
The 30003iX-CTS system does not provide programmable impedance and therefore must be
ordered with the OMNI-3-37i lumped reference impedance in order to support Flicker testing. The
OMNI-3-37i is housed in a 5.25 inch / 133 mm tall 19 inch / 483 mm wide rack mount cabinet.
Refer to the OMNI or iX AC/DC Power Source user manual for details.