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Electric Breaker

Electric Breakers

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).

Final Thoughts

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.

Distributors

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.

Australia

Australia’s Solar Energy

The utilization of energy created by the heat and light of the sun and converting it into electricity is commonly known as Solar Power Energy. It was in the 1860’s when solar power technologies was first developed, arising from the distress of industrialist that the current coal, oil and fossil fuels supply would become scarce and limited. Thus, becoming more costly for individual households to afford.

The growing concern has then led to the re-evaluation and re-assessment of the international energy policies and regulations. According to the 2018 World Economy Outlook published by the Organization for Economic Co-operation and Development and the International Energy Agency, the global demand for energy increased by 2.1% in 2017 with a 398 GW of solar PV installed around the world, and, meeting the 2% of global electricity demand.

In which, the rate of installations are influenced by changes, alterations and updates in the policy mechanisms supporting such technology. Nonetheless, this trend is expected to significantly increase in numbers by another 25% by the year 2040.

As one of the fastest developing countries, the land down under has relied greatly on solar power energy as their preferred energy source for decades now. However, it was only then in the year 2015 when the age of solar power technology in Australia underwent a rapid growth. The increasing cost of energy resources like fossil fuels, has led to a significant number of households that are turning into solar energy.

The emergence of government funded incentive programs for the incorporation of domestic and commercial solar power utilization also proliferated. Through the years, solar-powered technology has become Australia’s optimal energy source.

Geographically speaking, the Australian continent is known to have the highest solar radiation per square meter of any continent with an average of 58 million petajoules (PJ) of solar radiation per year, which is approximately 10,000 times larger than the country’s total energy consumption. This has helped increase Australia’s Gross Domestic Product (GDP) to $275 million for every petajoule of energy consumed.

To date, there are 2.15 million or 21% of Australian households are recorded to have Solar Photovoltaic (also known as solar PV) with a combined capacity of over 12.9 gigawatts installed on their rooftops that directly converts sunlight into electricity using a semiconductor cell or solar PV cell. This type of solar power technology is the most common and widely used in households.