Necessary components in PV

Solar photovoltaic power generation is an important part of new energy and renewable energy. It is considered to be the most promising new energy technology in the world. All countries have invested huge sums of money to compete for research and development, and actively promote the process of industrialization, and vigorously develop Market application. This has also brought huge market demand for some of the necessary components such as solar relays, AC DC leakage current sensor, bidirectional meters, and DC meters. Today we will talk about the connection between PV and relay, AC DC leakage current sensor, bidirectional meter and DC meter in detail.

First of all, one of the related components of the relay, such as the magnetic latching relay IM-901, has a load current of 90A, and the open and close states of its contacts are usually maintained by the magnetic force generated by the permanent magnet. When the contact of the relay needs to open or close state, it only needs to use positive (negative) DC pulse voltage to excise the coil, and the relay completes the characteristics of open and close state transition in an instant, so that it has automatic on-off, remote control, monitoring and other functions, which makes it very important in PV.

Generally speaking, the direct current generated by PV is inseparable from the "safeguard" ACDC leakage sensor in the process of transmission and conversion. As we have mentioned in previous articles, the leakage sensor is the leakage current signal of the line sensed by the leakage device. The chip is converted into a digital signal and transmitted to the leakage monitoring host in real time. From the leakage monitoring host, the specific location of the leakage can be seen. Under normal circumstances, the leakage sensor only alarms and does not act or trip: The leakage protector is actually a leakage switch, if there is a leakage Exceeding a certain threshold, the device will cut off the line and cause a trip. According to these excellent characteristics, the leakage sensor is widely used in the PV field.

As for the bidirectional meter, the bidirectional meter is a functional electric meter, and the bidirectional meter is a meter that can measure electricity consumption and power generation. Because both power and energy have directions, the meter can read the forward and reverse power through the display and store the power data. The reason for installing a bidirectional meter is that the electricity generated by photovoltaic cannot be consumed by users, and the remaining electricity needs to be transmitted to the grid. The meter needs to measure a number; when photovoltaic power generation cannot meet the demand, it needs to use electricity from the grid. This requires another number to be measured. Ordinary single-block meters cannot meet this requirement, so smart meters with metering functions by shunt sampling are used.

As far as DC meters are concerned, DC meters are designed for applications such as DC screens, solar power supplies, and telecom base stations. This series of meters can measure voltage, current, power, forward and reverse energy in the DC system. It can not only be used for local display, but also can be connected with industrial control equipment and computers to form a measurement and control system. Therefore, the DC meter measures the power generation and provides a vital step for the entire new energy power project.

In PV market, IVY like any company, are committed to benefiting every user with products that are more environmentally friendly, more energy efficient, and of better quality. If you are interested in PV and related relays, bidirectional meters, DC meters, please visit our website to learn more about green energy: www.ivy-metering.com