Programmable AC Power Source
Model 61511/61512/61611/61612
The global market for AC power testing demands for more sophisticated, high performance AC power source that 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 modes extend the applications not only for providing pure AC voltage, but also DC component for DC offset testing in laboratory.
The 61511/61512/61611/61612 AC sources 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 precision 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 easily simulate power line disturbance (PLD) by LIST, PULSE and STEP modes.
Chroma 61500/61600 series allow users to compose different harmonic components to synthesize various harmonic distorted waveforms. By applying this advance feature, users can program a sweeping frequency component incorporate with fundamental voltage for finding the resonance points of UUT, thus provide user with in depth analysis result.
To simulate the natural waveform, the 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 field.
The user friendly interface allows user quick access to 61511/61512/61611/61612 AC source’s functions through large graphic LCD display front panel with clear indicated keypad. The GPIB (IEEE488.2), RS-232, USB and Ethernet interface are available for users to control the AC source remotely.
RS-232 |
Ethernet |
USB |
GPIB |
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
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 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.
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 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.
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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