Atec Chroma-61511-12-61611-12 - Manual (Page 2)

1. ADVANCED PWM TECHNOLOgY
Chroma 61500/61600 series AC power source are able to provide highest power density by its advanced
high speed PWM mode design. The modularized power stage design offer outstanding performance
and high reliability. The modularized design allows service personnel to identify the trouble spot more
efficiently and minimize the downtime. With no transformer at the output stage, it not only reduces the
output impedance, but also lets 61500/61600 series be able to program DC component for simulating AC
voltage with DC offset condition. This function allows user to simulate the test condition of unbalanced
input current for rectified load.
2. SINgLE-PHASE AND THREE-PHASE OUTPUT
3. SLEW RATE SETTINg FOR VOLTAgE AND FREQUENCY
4. COMPREHENSIVE MEASUREMENTS
Chroma AC power source 61500/61600 series has a built in 16-bit measurement circuit and firmware utilities to measure the true
RMS voltage, current, true power, VA (apparent power), VAR (reactive power), power factor, current crest factor, peak repetitive
current and inrush current. Using the advanced DSP technology, 61500 series can measure THD and up to 40 orders of current
harmonics. It makes 61500 series not only a sophisticated power source but also a powerful analyzer.
5. POWER LINE DISTURBANCE SIMULATION (61500 SERIES)
In addition to the steady output voltage and frequency programming, Chroma AC power source 61500 series provides powerful
functions to simulate all kinds of power line disturbance conditions. The STEP and PULSE modes offer an easy and convenient
method to execute a single step or continuous output changes. The changes may be triggered by an internal or external event. With
this capability, it's easy to simulate power line disturbances such as cycle dropout, transient spike, brown out and etc.
The LIST Mode extends this function for more complex waveform generator needs, up to 100 sequences with different start-end
conditions, that can perform almost any waveform by AC and DC components. In this way, Chroma AC power source 61500 series
is capable of simulating all sorts of voltage dips, interruptions and variation waveforms for IEC 61000-4-11 pre-compliance test and
IEC61000-4-14/IEC61000-4-28 compliance tests. It also allows users to synchronize external events as well as measurement devices
with output changes.
Phase Waveform Panel
STEP Mode PULSE Mode LIST Mode
Model 61511/61512/61611/61612 AC sources let users set the slew rate of
voltage and frequency. It will follow the slew rate to reach the final setting
when the output voltage or frequency is changed. This function can help the
users to verify the operation range of input power. For example, user can
implement this feature to sweep the voltage gradually from 90V to 264V
instead of only checking several points like 90V, 115V, 230V and 264V.
Another application is; in order to reduce the inrush current during motor
startup or power on multiple UUT, the user can decrease the slew rate setting
to achieve the objective.
Model 61511/61512/61611/61612 AC sources are capable of delivering single or three-phase output
depending on the user's application. Users can select these output modes easily through front panel
or via remote control. Model 61511/61512/61611/61612 AC
sources are able to provide full power output without derating
even with the output is configured as single phase.