QuadTech Inc-HIGH POWER Programmable AC Source (Model: 61500 Series)

• 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

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.

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.

Single-Phase & 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.

Slew Rate Setting For Voltage & 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.

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.

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.

Pictured Above:Step Mode, Pulse Mode & List Mode

Distortion Waveform, Harmonics, Interharmonics Synthesis (61500 Series)

Traditional type of AC source only provides output voltage with sine waveform and this type of AC source is unable to meet and keep up with the latest test requirements for simulating the input voltage abnormal condition with distortion waveform. The WAVEFORM function allow user to set square, clipped-sine wave and 30 stored distortion waveforms. Besides that, IEC 61000-4-13 standard requires not only the harmonics waveform, but also interharmonics simulation.

Model 61500 series allow users to composite integer up to 40 orders of harmonic components based on 50Hz or 60Hz fundamental. The output will be a periodic harmonics distortion waveform. It also provides sweeping interhamonics function. This means the fundamental frequency will incorporate with a frequency sweeping component between harmonic frequencies. It can help to find the resonance or the weakest points of UUT. Chroma AC source 61500 series uses advanced DSP technology to synthesize the harmonic and interharmonics waveforms. Therefore, it is capable of generating a periodic harmonic and non-periodic harmonic distorted waveform to perform IEC 61000-4-13 compliance test.

Programmable Output Impedance (61500 Series)

Chroma AC source 61500 series allow users to program output impedance. A current feedback control circuit makes the output voltage changed with the load. This feature is suitable for IEC 61000-3-3 Flicker tests or other test condition with particular output impedance requirement. It provides users a convenient and cost effective way to implement the reference impedance.

AC Source (Master-Slave) Parallel Operation

The 61511/61512/61611/61612 AC source models provide the (Master-Slave) parallel operation function, which enable users to extend the AC source power output ability by connecting AC sources in parallel. The maximum allowable number of AC source implemented for the parallel operation is 5 units. Therefore, users can achieve a maximum power output up to 90KVA by combining 5 units of assorted AC source of 18KVA in (Master-Slave) parallel operation mode. The user could also use A615103 Power Stage as an alternative cost effective solution for the parallel operation, by implementing it as slave unit. Please refer to the following figures for AC source models 61511/61512/61611/61612 setup for parallel operation configuration.

To save the hassle with arranging the input and output wiring of multiple AC sources connection in parallel operation. Users can select and Implement the Chroma input/output terminal fixture (A615104/A615105) designed specifically to solve the wiring issue.

The 61500/61600 Series Softpanel

Chroma Softpanel is a graphical user interface which provides extraordinary capability and convenience to user for delivering control to the unit. The 61500/61600 series Softpanel is designed specifically for offering users to control the AC source by applying user friendly interface configured in a graphical, instrument like settings. The self explanatory graphical interface makes the enabling of extensive functions of AC source with just few clicks of button. Users are able to perform online and offline waveform editing with the implementation of Softpanel. The Softpanel is also equipped with data recording function as multiple measurement data can be recorded simultaneously. One of the most powerful features for Softpanel is the availability of test environment configured specifically for conducting IEC regulation test, such as IEC 61000-4-11, IEC61000-4-13, IEC61000-4-14 and IEC61000-4-28.