Atec Chroma-61500 Series - Manual (Page 2)

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.
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.
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.
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
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.
IEC 61000-3-3 Voltage Fluctuation & Flicker Test Setup
Ref.
Impedance
61500 Series Test setup in IEC 61000-3-3
AC EDT
V
EDT V G
Ref.
Impedance
PULSE LIST STEP