Atec 61511, 12, 61611, 61612 User Manual
PROGRAMMABLE AC POWER SOURCE
MODEL 61511/61512/61611/61612
The gl o b a l ma r k e t for AC po w e r te s t i n g
demands for more sophisticated, high performance AC power source t hat is capable of
simulating a wide range of AC line conditions.
Chroma 61500/61600 series programmable AC
source are the right solution to meet the market
requirements by providing the ability to simulate
various AC line input conditions and measurement of critical characteristic for products under
test. These features make the 61500/61600
series ideal for commercial, power electronics,
avionics, military and regulation test applications from bench-top R/D design verification,
quality assurance to mass production.
Using the state of the art PWM technology, the
models 61511/61512/61611/61612 can deliver
the maximum output voltage up to 300Vac and
output frequency from 15Hz to 1500Hz. The
AC+DC m odes e xt end the applic ations n ot
only for providing pure AC voltage, but also DC
component for DC offset testing in laboratory.
The 61511/6 15 12 /6 1611/61612 AC sour ce s
are capable of delivering up to 4 times of peak
current compared to its maximum rated current that makes it ideal for inrush current test.
All models possess the ability to generate pure
sine waveform output with typical distortion less
than 0.3% at 50/60Hz.
Chroma 61500/61600 series are able to provide p recision measurements such as RMS
voltage, RMS current, true power, power factor,
current crest factor and so on. By applying the
advanced DSP technology, model 61511/61512
can e as ily simulate p ow er lin e distur ba nce
(PLD) by LIST, PULSE and STEP modes.
Chroma 61500/61600 series allow user s to
compose different harmonic comp onents to
synthesize various harmonic distorted waveforms. By applying this advance feature, users
can program a sweeping frequency component
incorporate with fundamental voltage for nding
the resonance points of UUT, thus provide user
with in depth analysis result.
To s i m ul a t e t h e nat u r al wa v ef o rm , th e
61500/61600 series provide an external analog
input to amplify the analog signal generated
from arbitrary signal generator. Thus, user can
implement this feature to duplicate the unique
waveform observed in the eld.
The user friendly interface allows user quick
acc e s s to 61 511/61512 / 6 1 6 11 / 6 1612 A C
source’s functions through large graphic LCD
display front panel with clear indicated keypad.
Th e GPIB (IEEE 488 .2) , RS- 232, USB and
Ethernet interface are available for users to
control the AC source remotely.
Programmble AC Power Source
Key Features:
■ Power Rating :
61511/61611 : 12KVA
61512/61612 : 18KVA
■ Voltage Range: 0-150V/0-300V/Auto
■ Frequency: DC, 15Hz-1500Hz
■ Single-Phase or Three-Phase Output
Selectable
■ Programmable Slew Rate Setting for
Changing Voltage and Frequency
■ Programmable Voltage and Current Limit
■ High Output Current Crest Factor, Ideal for
Inrush Current Testing
■ Turn on, Turn off Phase Angle Control
■ TTL Signal Which Indicates Output Transient
■ LIST, PULSE, STEP Mode Functions
for Testing Power Line Disturbance (PLD)
Simulation
■ Voltage Dips, Short Interruption and Voltage
Variation Simulation
■ Harmonics, Inter-Harmonics Waveform
Synthesizer
■ Comprehensive Measurement Capability,
Including Current Harmonics
■ Analog Programmable Interfaces
■ Remote Interface: GPIB, RS-232, USB and
Ethernet
■ Capable of Delivering Power Output up to
90KVA by Implementing Master-Slave
Parallel Operation
RS-232
Ethernet
USB GPIB
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
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 c ontrol. Mode l 61511/61512/61611/61612 AC
sources are able to provide full power output without derating
even with the output is configured as single phase.
Phase Waveform Panel
3. SLEW RATE SETTING FOR VOLTAGE AND FREQUENCY
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 checki ng several poin ts 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.
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.
STEP Mode PULSE Mode LIST Mode
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