We are surrounded by devices and equipment that runs on Direct Current (DC). We plug these devices into an Alternating Current (AC) outlet and then convert AC to DC to operate them.
The same goes for sites like telecom that draws AC power from the main source and passes it through a rectifier. AC is being converted to DC to operate active equipment like generators and batteries on the site.
Typically, a rectifier has a peak efficiency of 86 to 92 percent as some energy is lost during the conversion process. Anything that falls below this range is considered inefficient and investigation should be done to regain the optimum efficiency.
Why are we converting AC to DC?
If the AD to DC conversion process causes a reduction in power efficiency, why are we still doing it?
- For power transmission from the main source to an independent site.
Transformers and circuit breakers that are required for power transmission are significantly less expensive for AC than for DC. It is wiser to transmit AC over long distances to save on operational costs.
- For power storage in batteries.
Batteries store energy in view for future use. This is extremely common for sites that need to be up and running round the clock. Due to the changes in the direction of AC electricity, power cannot be stored directly. AC can only be indirectly stored as DC in batteries.
- To power AC mains electricity.
We need to provide mains-style AC electricity because most of the equipment that we find in the office – computers, telephones, televisions, coffee makers – are designed to run on mains-style electricity.
Some might argue that the energy lost during this DC to AC inversion could nullify the savings on power transmission. However, research has shown that a site could potentially save between 9 to 18 percent of power efficiency, depending on its size. Hence, it is more cost-effective to undergo the process of current conversion and inversion, than to draw DC over long distances.
Wait. What is Power Efficiency and why are we on this topic?
Power efficiency is simply the ratio of actual power amount delivered to the components to the electrical power drawn from the mains supply socket, measured in percentage.
We want you to know how much energy your site is losing so you will be able to pinpoint the reason behind it, increase power efficiency and save on operational expenses (OPEX).
Galooli’s remote site management and energy efficiency solutions for fixed sites is the key to ensuring power efficiency within your site.
Start now by contacting Info@galooli.com!