When installing a solar panel system, you have to be familiar with the electric breakers and how it works with a solar PV system to avoid future electric problems. The electric breaker is one of the main components of a solar power system that provides safety mechanisms. If ever the electrical wiring of your system has too much current flowing through it, these breakers can easily cut the power until your solar installer can fix the system’s problem.
For today’s article, we will discuss electric breakers and their function in solar photovoltaic systems.
What is an Electric Breaker?
An electric or circuit breaker is an electrical switch designed to protect electrical circuits from damage caused by overloading of current or a short circuit. The basic function of an electric breaker is to prevent the current flow once protective relays detect a fault in the system.
Although it is frequently interchanged with a fuse, which is the simplest Over Current Protection device (OCPD) in electrical circuits, a circuit breaker, is a much-evolved type of device that interrupts the current flow. The main difference between the two is electric breaker is resettable and the fuse is not. The fuse sacrifices itself while protecting the system to overheat, while the circuit breaker can withstand hundreds and thousands of operations. Another difference is that electric breakers are used with relatively higher currents.
Components of Circuit Breaker
A circuit breaker system is composed of three parts. These three components are the sensing system, relay, and the combination of contacts and the contact actuator. A sensing system is responsible for detecting an overload situation, while a relay is responsible for transferring the information to the switching arrangement, and the combination of contacts and the contact actuator. This electric arrangement is usually observed in power transmission and distribution networks dealing with very high currents, voltages, and powers.
Circuit Breakers Calculation in Solar Panel Systems
When connecting circuit breakers to the PV system, you have to follow the recommended calculations to avoid future problems and damage to the entire system. The recommendations for using overcurrent protection devices including circuit breakers in solar modules against overloading conditions are given in IEC 60269-6 (volume 6 of IEC 60269-6) and also UL 248-19.
For circuit breakers, IEC recommends a 20% and 25% margin in voltage and overload current. Most of the time, the ratings are specified by the solar manufacturers at given ambient conditions. If the temperatures exceed this given value, derating must be applied according to the manufacturer’s specifications.
When it comes to breaker sizes for solar panels, NEC requires the breakers to be sized at 125% of the inverter’s rated output. So a 7680W inverter that outputs 240V, outputs 32A (7680W ÷ 240V = 32A). That requires a 40A breaker (32A x 125% = 40A).
If you owned a solar panel system at home, you have to understand how circuit breakers work to prevent catching fires at home. These devices are one of the major components of the PV solar system as they protect the system wiring from getting too hot and accidentally catch fire if short circuits occurred. Thus, understanding the breaker itself and its proper calculations in the PV system should be done.
Solar Products Distributors
Distributors are those companies working as big warehouses that served as the middlemen between the consumer/customer and the manufacturer. Typically, in distribution, a company is handling the sourcing, stocking and logistics but nowadays they are also helping manufacturers in product designing and solving other business conflicts.
Aside from other industries, distributors also play a vital role in the solar industry. Solar distributors become long-term partners of solar manufacturing companies and even solar contractors. They are not only serving as warehouse facilities but partners that also provide strategic solutions to help solar companies achieve their desired outcomes. Solar distributors assist solar manufacturing companies by storing. handling and shipping their solar products to their buyers. On the other hand, they help solar contractor companies in outsourcing high-quality solar products.
These solar distributors are the ones who deal with homeowners who want to go solar, businesses that work with the solar industry and solar installers who offer solar system services to both residential and commercial customers. But on top of that, the solar distributor’s main role is to maintain its commitment to outsourcing and handling high-quality products and delivering them to customers at a good value.
Up to these days, many solar distributors have been operating and helping many solar companies in distributing their products. So, if you are looking for the most trusted and reliable solar distributor, you can easily find one by checking out solar outsourcing companies that provide easy access to reliable information, news, data and a list of solar suppliers and distributors near you.
Solar Market Outlook in the Netherlands
The Netherlands solar power market is one of the fastest growing solar markets in Europe. In 2020, it managed to deploy 2.93 GW of solar capacity and it marks a growth rate of 40%. This data pushed the cumulative figure of the country’s solar market to 10.11 GW. Since 2017, there has been consistent growth for the Dutch solar power market.
Majority of the solar power installations in 2020 were in the residential segment but the industrial and large-scale installations had their fair share, too.
Despite failing to meet its EU 2020 renewable energy target of 14% (the Netherlands is only 12.5% by 2020), the country is well on its way to making solar as its primary renewable energy source.
The Dutch government is promoting the solar market growth through national SDE+ auctions to provide greater financial incentives to investors. They are also making it happen through the Power Purchase Agreements.
The projected solar installation capacity in the Netherlands by 2050 is at 38 GW to 125 GW.
Solar Energy Equipment Supply Capacity in the Netherlands
Solar panel companies are quite abundant in the Netherlands. There is also a growing number of renewable energy manufacturers in the country.
The Netherlands also has easy access to solar energy suppliers for the residential and industrial segments.
Top 8 Major Seaports & Logistics in the Netherlands
The Netherlands is one of the most important and largest seaports in Europe. It is also accessible to a wide range of logistics and passenger ports. This makes it easy to procure solar power equipment for those who wish to shift to renewable energy sources.
The top logistics and seaports in the Netherlands include the following ports: Port of Amsterdam, Port of Rotterdam, Port of Alkmaar, Port of Den Helder, Port of Breskens, Port of Dordrecht, Port of Harlingen, and Port of Moerdijk.