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Brumby Pumps - Solar Compressors
Solar set-up can be done in many ways. We are still developing a solution that we are happy with. We want to keep it basic and as efficient as possible.
We have worked with brushed motors, which run up and down with the changing voltages coming from the panels. That worked well, but we were looking for limitations, so left them running continuously, stopping on their own when power from the panels got too low. The result was burned commutator and brushes in the motor. Easy enough to fix by pulling the motor apart and cleaning the components with 1200 grade sand paper, but not something we want to sell to clients.
36V 3 phase motors - work well, but so far the only ones we have found are made for electric bikes and have a complicated controller on them. We will look at them further though.
110V - 240V with inverter. This would be easy enough to put together using a regular compressor and an inverter.
We want to stay with low voltage equipment that will allow the option of operating with or without batteries in the system. That makes it safer, more efficient and more versatile.
Regardless of the set-up, a controller is required to stop and start the compressor as the voltage from the panels goes up and down, to avoid damage to the electric motor