This section provides overview, applications, and principles of power analyzers. Also, please take a look at the list of 20 power analyzer manufacturers and their company rankings.
A power analyzer is a device used to measure the power generated by electrical equipment. By measuring power, it is possible to check energy conversion efficiency and equipment malfunctions caused by voltage drops.
Power itself can be measured with a wattmeter without a power analyzer. However, the ability to measure various parameters other than power, such as voltage, current, and frequency, is an advantage not found in power meters.
There are multiple channels on the result display screen. By setting the channels, it is possible to display only the necessary parameters.
Power analyzers are used to measure the efficiency of power generation using natural energy sources such as solar and wind power generation.
Power generation using natural energy sources such as solar and wind power is called renewable energy power generation. The use of renewable energy is becoming increasingly popular because it is environmentally friendly. On the other hand, it has the disadvantage of being less efficient than thermal power generation and other forms of power generation because the supply of energy depends on the climate.
By measuring generation efficiency, we confirm that power is being supplied properly. Efforts are also being made to activate backup systems in the event of power generation efficiency declining due to energy shortages.
The power that a power analyzer measures is determined by the equation of voltage and current. There are no different types of voltage, but the current is divided into different types based on how it flows.
Alternating current is a type of current flow in which the direction of the current is not fixed to one direction. The direction of flow alternates by switching between positive and negative currents at different times. The timing of alternation depends on the frequency used for current flow. The higher the frequency, the more times the current alternates.
All electricity flowing from power plants to homes and facilities is alternating current. AC has the advantage of being able to transmit electricity over longer distances than DC.
This is a method in which positive and negative currents do not switch, and electricity flows in one direction. Power transmission using dry cell batteries is a direct current method. The DC method has a simple structure and is easy to understand. The disadvantage is that it is difficult to shut down. It is necessary to shut off the current when troubleshooting or maintenance is required, but this is more difficult to do than with an alternating current.
Power analyzers can measure both DC and AC.
Current power analyzers have the following features.
Power analyzers are classified into two types based on price range: low-priced models and high-end models. The two key points in choosing which one to use are accuracy in power measurement and frequency range. Models suitable for high-precision measurement of phenomena with a large variation range (standby power/full power) and measurement of inverters and switching drives should be selected from the slightly more expensive, popularly priced (mid-range) to high-end models. In other cases, popularly priced models can be used.
Power analyzers perform power measurements with high accuracy, but in recent years, various advanced models have been released by various manufacturers.
Conventional power analyzers did not have a waveform observation function, so it was necessary to prepare a digital oscilloscope or other waveform measurement device separately. Currently, several companies offer similar integrated oscilloscope types are available from several companies.
*Including some distributors, etc.
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