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

• Power: 500VA (61501)
  1500VA (61503)
  2000VA (61504)
  4000VA (61505)
• Voltage range: 0-150V/0-300V/Auto
• Compact size and weight attributable to advance PWM technology
• AC+DC output mode for voltage DC offset simulation
• Programmable slew rate setting for changing voltage and frequency
• Low output impedance for testing IEC 61000-3-2 (61505)
• Programmable output impedance for testing IEC 61000-3-3
• LIST, PULSE, STEP mode function for testing power line disturbance (PLD) simulation capability
• IEC 61000-4-11 voltage dips, short and variation simulation
• Harmonics, inter-harmonics waveform synthesizer for testing IEC 61000-4-13
• Programmable voltage, current limit
• Comprehensive measurement capability, including current harmonics
• High output current crest factor, ideal for inrush current testing
• Turn on, turn off phase angle control
• TTL signal which indicates output transient
• Analog programmable interface
• 3 units combined to 3-phase power output
• Easy-use software for operation and IEC regulation test
• Optional GPIB and RS-232C interface

Chroma AC power source 61500 series sets up the new standard for high performance AC power source. It equips with all powerful features such as power line disturbance (PLD) simulation, programmable output impedance, comprehensive measurement functions, waveshape synthesis and regulation test software. These features make the 61500 series ideal for commercial, power electronics, avionics, military and regulation test applications from bench-top testing to mass production.

Advanced PWM Technology

Chroma AC power source 61500 series is able to provide the highest power density by its superior PWM mode design and the incorporated power factor correction function.

AC/ DC Output Capability

Chroma AC power source 61500 series provide output DC component for simulating AC voltage with DC offset condition. It can test the unbalance input current for rectified load. Users also can use an optional DC noise filter to get low noise and good stability DC voltage for testing.

Comprehensive Measurements

Chroma AC power source 61500 series has built in a 16-bit measurement circuit and firmware utilities to measure the steady and transient responses of 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, it can measure up to 40 orders of current harmonics. It makes 61500 series not only a power source but also a powerful analyzer.

Power Line Disturbance Simulation

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 is 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. It also allows users to synchronize external events as well as measurement devices with output changes.

Programmable Output Impedance

Chroma AC source 61500 series allows 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.

Arbitrary Power Amplifier

The external voltage programming input of Chroma AC power source 61500 series allows users to feed any AC+DC waveform from an arbitrary signal generator. And amplify the signal accordingly. It can be used to simulate the real mains supply waveforms observed in the field.

High Output Current Crest Factor & Turn On / Off Phase Angle Control

Chroma AC power source 61500 series is capable of providing high output current crest factor (Max. 6). It delivers sufficient transient power required for testing most of the rectified input type power circuits. The programmable turn on (off) phase angle control makes the 61500 series AC source ideal for inrush current test.

Voltage Dips & Variation Simulation

IEC 61000-4-11 voltage dips, short interruption and variation standard have become mandatory in EMC directives for the CE mark. Chroma AC power source 61500 series is capable of simulating all sorts of voltage dips, interruptions and variation waveforms for IEC 61000-4-11 precompliance tests with an easy-use software.

Harmonics, Interharmonics Synthesis

Traditional type of AC source only allows users to composite integer orders of harmonic components into a periodic harmonics distortion waveform. IEC 61000-4-13 standard requires not only the harmonics waveform, but also interharmonics simulation. This means the fundamental frequency will incorporate with components frequencies between harmonics frequencies. Chroma AC power source 61500 series uses advanced DSP technology to synthesis the harmonics and interharmonics waveforms. Therefore, it is capable of generating a non-periodic harmonic distorted waveform to perform IEC 61000-4-13 compliance test with an easy-use software.

61500 Series AC Source Applications

Simulate AC Power Distortion

More and more electronics manufactures have expanded their business to acquire worldwide product distribution. When a problem is identified, sometimes it is necessary to check if the products are susceptible to ac line disturbances. However, precious time would be wasted on gathering and transferring test equipment, man power and other resources to do a simple onsite test. The purpose of this application is to provide a solution using Chroma Power Analyzer 6630 to measure the voltage harmonics of the ac main on site. All recorded data can be sent to the lab. According to the data, users can use synthesis function of AC source 61500 series to re-build the original distorted waveform. It can help engineers quickly point out the problem and come up with a solution.

Aerospace Testing Software for AC Power

With the powerful programming capability, AC power source 61500 series can be used to test aircraft electrical equipment. Chroma also provides software for AC power part test of standard RTCA DO-160D, MIL-STD-704E and ABD0100.

The Easy-Use Software: The 61500 Series Softpanel

3-Phase Mode & Series Connecting For High Voltage Output

The 61500 series AC source provides a 3-PHASE mode to let users connect 3 units for 3-phase output application. Users can set a unit as the Master, and set others the phase angle 120/240 degree as the Slaves. The Master unit will keep on Fixed mode and send a signal for synchronizing Slaves.

Now, more and more UUTs need to test AC line transient with high voltage > 300V. An external boost transformer might raise the voltage, but the serious loading effect will make the voltage waveform with large distortion. Users can connect 2 units of 61500 in series and set the phase angle to zero (see figure) in 3-PHASE mode. In this way, users can program a 220V/0.5sec superimposed on 230V to get a 450V transient voltage easily.