Frequently asked questions

A network analyser is a tool that measures and analyses the operation of electrical networks. It analyses aspects such as load capacity, consumption, problems with harmonics, voltage, overvoltage... Its aim is to be able to solve any problems in the electrical network. Therefore, if regular maintenance is carried out, problems can be avoided and greater energy savings can be achieved.

Their use is important to prevent errors in electrical systems, optimise energy consumption and have a good energy management. For example, they are useful for detecting overvoltage problems, knowing the capacity of the electrical network to add loads or make power adjustments...

This is not necessary, as many models are designed to be intuitive and easy to use. However, more advanced knowledge can be very useful to interpret the data correctly and to make decisions based on that data.

The analysers are designed to know the general state of the network, which is very useful to obtain immediate information about the state of the electrical installations and to detect anomalies in the networks. If you have any doubts about which analyser is most suitable for you, you can contact our sales team for advice.

Network analysers require a minimum of maintenance to ensure that their performance and accuracy are as expected. This means that it is recommended that they undergo checks, which may vary depending on the model. Typically these are cleaning, checking their connections and checking their software to make sure it is up to date. It is also important to calibrate them as recommended to maintain measurement accuracy. This helps to extend the life of the analysers and helps to ensure that the data they provide is accurate.

Industrial currents are usually too high to be passed directly to measuring instruments. This is why current transformers are used, to reduce them to acceptable values in the vast majority of instruments, usually less than 5 amps. Thus, a current transformer (CT) is used to obtain a lower but proportional current to that flowing through a supply line.

It is used to measure high current through a line, as well as an isolation device between power circuits and digital measuring instruments.

Its operation is quite similar to that of a conventional two-voltage transformer. As mentioned above, a current transformer is used to measure high currents. When high current flows through the primary core of the transformer, it induces a minimum current through the secondary taking into account the number of turns of both voltages. A ammeter connected via the secondary is capable of being able to measure the current flowing through the secondary. Thus, if the number of turns in the primary and secondary is known, in addition to the value of the secondary current measured with the ammeter, it can be used to determine the high value current flowing through the primary.

To answer this question, several factors must be considered. Firstly, it is important to consider the current range that the transformer can withstand. It is also interesting to consider the accuracy, because depending on the use (measurement, protection or control) the level of accuracy required may vary. However, there are many other criteria depending on your needs. If you need advice, do not hesitate to contact us!

A transformer consists of a core of sheet metal that facilitates magnetic flux and two windings: the primary, which receives the input current, and the secondary, which delivers the output current. The windings are electrically insulated to prevent short circuits. In addition, the transformer has a protective casing, usually with dielectric oil for cooling and additional insulation, as well as connection terminals and protective devices such as relays.

Energy meters, also called electricity meters, are devices whose function is to measure energy consumption. Electricity meters can be analogue or digital and record how much electricity is consumed over a period of time, which allows electricity companies to bill users according to their consumption. In addition, smart meters can provide more detailed information on consumption patterns for better energy management.

These devices measure the energy consumption of an electrical installation. Consumption is measured in kilowatt hours (kWh), which is a unit of energy equivalent to the energy consumed by a 1,000 watt (or 1 kilowatt) device for one hour.

Within our range of meters you can find simple meters that measure only active energy, others that can measure voltage, current, power factor, reactive energy, etc. and up to 75 parameters in those three-phase meters that also have network analysis qualities.

The main difference between these two options is that in direct metering, the meter is connected directly to the installation, whereas indirect metering requires 3 current transformers for metering.

In order to choose the appropriate equipment within the direct or indirect metering options, the only data you need to know is the intensity of the installation where you are going to install it. Single-phase meters are always direct, and reach currents of 50A, 80A or 100A. As for the three-phase meters, the direct ones reach up to 80 amps and the indirect ones are unlimited, everything will depend on the ratio of the transformer depending on the consumption of the installation.

To read a electromechanical electricity meter, If you look at the dials, you will see a series of discs or dials arranged in a row. Each dial represents a digit. Once you have written down all the numbers, you will have the complete meter reading. This reading represents the total kilowatt hours that have been consumed up to that point. If you compare this reading with your last bill, you can calculate how much electricity you have used since then.

Smart meters or smart meters are the digital version of traditional electricity meters. These devices allow more efficient management of the grid and control different electrical parameters jointly. In this way, and through the detection of unnecessary consumption, they favour the optimisation of responsible consumption, improving the sustainability and energy efficiency of the installations.

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Digital measuring instruments offer greater accuracy and readability, as they display values directly on a numeric display. They can be panel or DIN rail mounted and there are models that only occupy 2 modules.

Digital measuring instruments are accurate to within 0.2% to 1% due to analogue-to-digital conversion technology. The exact accuracy may vary depending on the model and specific application, but in general, digital devices offer higher accuracy than analogue devices.

Digital instruments are ideal for applications requiring high accuracy and ease of reading, such as in laboratories, research, product development, and quality control in industrial processes.

When choosing between a digital and an analogue instrument, consider the accuracy needed, ease of readability, additional functions you may need, and the type of measurement you will be making. Digital instruments are best for accuracy and data storage, while analogue instruments are useful for observing trends and continuous changes.

The digitisation process in digital measuring instruments involves converting the initial physical signal into an analogue signal and then into a digital signal by means of an analogue-to-digital (AD) converter. This process allows the device to accurately record the value, displaying the result on its digital display and allowing for additional functions such as data storage and real-time analysis.

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