blog:2020-04-12:power_cable_resistance
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blog:2020-04-12:power_cable_resistance [2020/04/12 23:14] – created va7fi | blog:2020-04-12:power_cable_resistance [2020/04/12 23:40] – va7fi | ||
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====== Power Cable Resistance ====== | ====== Power Cable Resistance ====== | ||
- | At home, my radio station is all crammed in a very tight space so the main battery bank is in the container about 55 ft away. A few weeks ago, I purchased a [[blog/ | + | At home, my radio station is all crammed in a very tight space so the main battery bank is in a detached |
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The slope of the line is the resistance since: $R = \frac{\Delta V}{\Delta I}$, which in my case is 0.09 Ω. Note also how much power is loss in the cable. | The slope of the line is the resistance since: $R = \frac{\Delta V}{\Delta I}$, which in my case is 0.09 Ω. Note also how much power is loss in the cable. | ||
+ | |||
+ | A trick to help reduce this power loss is to add a smaller battery in the house. | ||
+ | |||
+ | <WRAP indent> | ||
+ | |<10px >| | ||
+ | ^ ^Current (A) ^Voltage Drop (V) ^Power Loss (W) | | ||
+ | |5W |2.8 |0.5 |1.4 | | ||
+ | |12W | ||
+ | |25W | ||
+ | |50W | ||
+ | |100W |10.8 |0.7 |7.5 | | ||
+ | |>100W |16.7 |0.8 | ||
+ | </ | ||
blog/2020-04-12/power_cable_resistance.txt · Last modified: 2020/08/07 13:03 by 127.0.0.1