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H&H PLI-MR, Multi-Range DC loads
H&H, ACL SERIES ELECTRONIC AC LOADS
H&H PLA series DC loads
H&H PL series DC loads
H&H PLI series DC loads 600 W - 28.8 kW
TTi LD400 DC load
Chroma 63200A series DC loads 2kW - 24kW
H&H ZS series DC loads
Höcherl & Hackl ERI series DC loads
Cinergia EL series DC loads
Chroma 63800 series AC loads
For electronic loads (in short: loads) we differentiate between AC and DC loads, like we do for power supplies. Loads are used to test energy-generating installations.
Examples of AC loads are solar inverters and UPS systems. Most AC loads have adjustable power and can operate in both Constant Current and Constant Resistance mode.
Examples of DC loads are switched power supplies, DC / DC converters, batteries, fuel cells, battery charging cables, and solar panels. The options regarding loads are Constant Current, Constant Resistance, Constant Voltage, and Constant Power. Some models are supplemented with Constant Impedance and a combination of the aforementioned possibilities.
The easiest way to test a power supply is to load the power supply with a resistive load. This way, it is easy to determine whether a power supply meets the basic specifications of voltage, current, and power. However, most resistance loads are not pure, and the power supply’s load is often dynamic instead of static. Electronic loads are often used in order to test the power supply on dynamic behavior.
How quickly does the power supply follow when a load changes from 10% to 90%? Does the power drop in case of such load, and by how much? How quickly does the power supply recover to the set voltage? What is the current’s characteristic course? These questions may be answered by applying correct electronic loads.
A multi-channel DC load is often used for the testing of, for example, PC power supplies that have both 12V, 5V and 3.3V outputs. Multichannel AC loads are generally used for testing three-phase systems.
At TTMS, we carry electronic loads to a capacity of 600KVA. Especially with these high powers, it is interesting to use regenerative loads.
Alternatively, we also carry water-cooled DC loads.
Last but not least, we carry specific loads developed for, for example, the testing of solar panels (zero volts optional) and fuel cells (low voltage and high currents).
Would you appreciate advice on your application’s electronic loads? Please do not hesitate to contact us.
We don’t buy measuring instruments, we purchase solutions for specific measurement problems. I like to buy from TTMS, given their knowledge of test solutions in power electronics. I hate sellers. TTMS helps us to make the right choice. They even come up with instrumentation from manufacturers they do not represent themselves. And always with the perfect service: they are not complicated and just arrange what is needed.
Shell Technology Centre Amsterdam
In my role within the calibration and quality lab, it is a continuous striving for quality for me. In order to ensure this, the right support from, amongst others, suppliers is essential. TTMS understands this like no other, and I have been doing business with them for years. If I need to describe the business relationship with TTMS, it would be that it’s both constructive and instinctive. The measurement instrumentation is reliable.
In addition to this, TTMS’ expertise of test and measuring equipment complements the STCA.
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