DC-America’s Post

Qld customer NEM electrical system demand Max to Min dynamic spread continues to widen. Significant opportunity (need) to refocus at the embedded Customer/Community level to efficiently optimise (plus release additional curtailed customer production - carbon reductions) and manage customer electricity dynamics.

Dc POWER SUPPLY

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AC current is better than DC current for long-distance power transmission due to: 1. Voltage Transformation: AC voltage can be easily transformed to higher or lower voltages using transformers, enabling efficient high-voltage transmission and reducing I²R losses. 2. Reduced Transmission Losses: Higher voltage transmission in AC reduces current for the same power, minimizing resistive losses over long distances. 3. Infrastructure: AC transmission infrastructure, including transformers and switchgear, is more developed and cost-effective compared to DC systems.

AC current is better than DC current for long-distance power transmission due to: 1. Voltage Transformation: AC voltage can be easily transformed to higher or lower voltages using transformers, enabling efficient high-voltage transmission and reducing I²R losses. 2. Reduced Transmission Losses: Higher voltage transmission in AC reduces current for the same power, minimizing resistive losses over long distances. 3. Infrastructure: AC transmission infrastructure, including transformers and switchgear, is more developed and cost-effective compared to DC systems.

Thank you Eng Jesse for opening this discussion. I think because people have become used to AC, DC advantages were forgotten. (1) In DC, number of wires required to transmit the power from the sending end to receiving end are less compared to AC. As there are many topologies in case of DC circuits, even one wire can transmit the entire power, but with lower reliability in case of the simplest mono polar link. Furthermore, the infrastructure costs related to wires, towers, and transformers are significantly reduced in implementing DC topologies. Thus DC is more economic than AC. (2) The stability issues and synchronization aspects in case of AC are more complicated as DC utilizes flexible power electronics to regulate the voltage and frequency at the two ends. (3) FACTs family plays a major role to transmit the DC power. In conclusion, there are many things to say on this topic, DC is the mother of transmitting power, however some countries have realized its outperformances and trying to rebuild new systems to replace AC transmission and distribution circuits such as Japan, Singapore, UK, China, etc through inverter-based mega projects. I do really appreciate your very interesting post. Keep it up!

Understand in 60 seconds how Active connectivity is implemented in an already existing MV Switchgear known as MCSet. You can view the video by clicking on the following link: http://spr.ly/6040W0BQ2 #MCSetConnectivity #LifeIsOn

11 KV HT Chillers. Higher Efficiency Reduced Power Losses - Operating at 11 KV reduces current flow, minimizing power losses over long distances and improving overall efficiency. Higher voltage chillers are more energy-efficient, leading to significant cost savings in large-scale operations.

Understand in 60 seconds how Active connectivity is implemented in an already existing MV Switchgear known as MCSet. You can view the video by clicking on the following link: http://spr.ly/6040gMdPw #MCSetConnectivity #LifeIsOn

Understand in 60 seconds how Active connectivity is implemented in an already existing MV Switchgear known as MCSet. You can view the video by clicking on the following link: http://spr.ly/60465vuqG #MCSetConnectivity #LifeIsOn