Atec Chroma-61511-12-61611-12 - Manual (Page 3)

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.
6. DISTORTION WAVEFORM, HARMONICS, INTERHARMONICS SYNTHESIS (61500 SERIES)
Harmonic Waveform
Interharmonics Waveform
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.
7. PROgRAMMABLE OUTPUT IMPEDANCE (61500 SERIES)
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.
8. AC SOURCE (MASTER-SLAVE) PARALLEL OPERATION
Combine two units of Model 61512 for obtaining
36KVA power output or combine AC source models
61512 + 61511 for obtaining 30KVA power output Combine AC source Model 61512 with two units of A615103
(18KVA) for obtaining 54KVA power output
Master Mode Slave Mode Master Mode Slave Mode Slave Mode
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All specifications are subject to change without notice.
Please visit our website for the most up to date specifications.