Power Measurement for Renewable Energy

 Measurements of photovoltaic power consumption and power conversion efficiency

Photovoltaic power generation systems have been a focus of attention under the backdrop of the prevention of global warming. Thermal power generation and other forms of power based on the limited resources of oil and coal release environmentally harmful CO2, the main cause of global warming. On the other hand, because photovoltaic power generation does not release CO2, it is considered to be an important renewable energy resource for the future. The WT500 is capable of evaluating voltage, current, and power conversion efficiency by measuring DC signals and AC signals generated by photovoltaic power, a renewable energy source.

 Measurement of power conditioned and bought for home electronics

Industry is moving ahead with aggressive energy-savings and usage of renewable energy. Japan in particular has been actively developing equipment for photovoltaic power generation systems. The WT500 measures power consumption of “sold power”, which supplies photovoltaically generated power to interconnected systems, and “bought power” (purchases of electricity) and simultaneously displays data of bought/sold power, consumed/regenerated energy, and other data for energy-saving monitoring.

 Evaluation and Testing of Home Electronics

Power consumption reduction measures have been adopted in consumer appliances such as air conditioners and washing machines due to implementation of Energy Star. Control methods are used in home electronics in which consumed current is precisely controlled to reduce power consumption. The WT500 provides measurement of the fluctuating power consumption in these appliances.

  Power Quality Evaluation and Testing of UPS (Uninterruptable Power Suppies)

Uninterruptible Power Supplies (UPS) are systems that provide stable supplies of power at all times even during power failures such as power outages, instantaneous power failures, voltage fluctuations, and frequency changes. As UPS performance tests, the WT500 can calculate input-to-output efficiency, power output, frequency, and distortion factor.

Large Current Measurement for Electrical Appliances

In recent years, the “all-electric lifestyle” of household electronics such as kitchen appliances and hot water heaters has grown in popularity, and there is increased demand for Induction Heating Cookers and other Electrical Appliances that are promoted as being safer than gas-operated stoves. A large amount of current is applied and converted to heat in order to increase the output of IH cooking heaters. The WT500 can measure voltage, current, power, and total harmonic distortion (THD) by inputting the large current (up to 40 A) flowing to the IH cooking heater, without the need for a current sensor. Measurements can be taken faster, allowing for high speed acquisition of power data on manufacturing lines.

Measuring Power Consumption of Various Motor Loads

Various industrial motor & pump and air-conditioning fans are used in factories and other such locations. The revolution speed of these motor & pump has to be controlled in order to save energy, therefore many inverter-driven motor & pump are used. The WT500 not only measures variation of voltage, current and power to evaluate performance of these motor & pump, but also enables you to examine energy efficiency by measuring integrated power.