Home » Products » H&H, ACL SERIES ELECTRONIC AC LOADS
The H&H ACL series electronic loads are suitable for both DC and AC voltages up to a frequency of 1,000Hz. 1-phase and 3-phase models are available. Multiple single-phase units can be configured to a 3-phase in a parallel, star or delta configuration. There are also 3-phase models in one housing.
The clear 4.3″ touch screen makes operation clear and simple. Different waveforms are defined directly through the user interface, from phase angle and crest factor to harmonics and random current waveforms. Phase shift between load current and voltage is possible in combination with crest factor or phase angle control.
The measured values are numerically displayed for all channels/phases or are displayed in an oscilloscope-like way versus time in a graph. The automatic amplitude correction keeps the RMS value of the current constant, even with a variable crest factor.
These ACL series electronic AC loads are suitable for voltages up to 280Vrms or 500Vrms and can be used in CC, CR, CP and CV mode. With alternating current, the set waveform is applied to the charging current independently of the input voltage. In resistance mode, the current level and waveform depend on the level and waveform of the input voltage. In energy and voltage mode, the power or voltage regulated by software by adjusting the input current. Single phase units are available with power ratings from 500W to 21kW. The 3-phase models are suitable for power ratings from 3 x 1,400W to 3 x 8,400W.
In all operating modes, the ACL load can emulate charging profiles using the LIST function. Up to 300 setpoints of variable duration with corresponding rise and fall times are possible. Sampling times can be defined separately for each profile. Voltage and current are measured synchronously and stored with a time stamp. Different dynamic load profiles can be programmed in which the waveform itself can also be varied. For example, there is an arbitrary function for the realization of harmonic distortion, phase control currents and Crest factor.
All control functions of the ACL series electronic loads are also adjustable or controllable via the optional, galvanically isolated I/O port. The ACL series is standard equipped with RS-232, USB, LAN, GPIB and the CAN System bus for Master-Slave use.
If you have questions about prices and/or delivery times, or if you want a demonstration of one of the ACL Series electronic DC taxes please contact us. We will gladly advise you in choosing the best electronic DC load for your application.
Open the datasheet for detailed specifications of this product.
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"The ABB Power Grids Jumet organisation is an innovative development and production facility of ABB that manufactures active filters and battery energy storage systems to support a stable grid. To test these systems we have acquired two Cinergia GE/EL +120kVA eplus units capable of doing grid emulation (AC + DC), operating as an electronic load (AC +DC) and being a battery emulator. We have experienced very good support from TTMS in obtaining these two Cinergia units. This included organising an on-site demonstration and supplying loan systems prior to the delivery of our final systems. This way we could start testing as early as possible. TTMS also organised training for the operators from the original manufacturer. This support allowed us to introduce the first battery energy storage systems even prior to the full delivery of the Cinergia systems."
University of Luxembourg
“At the Energy and Environment department of the Faculty of Science, Technology and Medicine (FSTM) of the University of Luxembourg we do have different research projects related to green energy contributing to the development of eco-cities. As a long-standing partner of our research unit, TT&MS has proven that they are able to answer even the most complex questions in a professional manner. They have shown that they are always up to date with the latest technology and do not spare any effort to look at the application and even the situation on site. The exchange of ideas was always very pleasant and took place quickly. We look forward to further years of fruitful cooperation.”
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