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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.
Latefa El Amrani
As an independent calibration laboratory of electrical/electronic temperature and geometric measuring equipment, we and our customers benefit from accurate measurement results and good traceability. This requires good and stable measurement and control equipment. To achieve this, a reliable partner is needed that offers high quality and thinks along with us, and TTMS is such a partner. We have been working in good collaboration with TTMS for many years. Technical problems are challenges for them and questions are answered quickly and adequately. TTMS is pro-active: they always think along with us. They are also customer-oriented, flexible, committed and reliable. They always live up their appointments. Also, they are experts, provide good advice and deliver the right equipment. In short, MetricControl likes to work with TTMS.
Joop van Bijnen
I have been doing business with TTMS for years. They offer us good advice, and have a wide range of products to choose from. Before we decide to purchase a product, TTMS allows us to use a demonstration model to experience for a few days whether the product meets our expectations. They think along with us and don't try to sell me just anything. Should it occur, for whatever reason, that there is a defect in the equipment of TTMS, they will follow up with the required service with regard to repair and, if necessary, a replacement. With its service, TTMS invests in a good and lasting customer relationship.
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