Folks,
We have a need to measure the corrosion rate of steel h-piles (A572) installed in corrosive soils. The h-piles support a stuctural wall. Other than excavating a few h-piles and taking physical measurements of the h-piles over time, and monitoring using resistance coupons, is the linear...
Ok, I am back online. The existing synchronous motor does not have a permanent magnet rotor. We will consider replacing this motor with a permanent magnet rotor so we can use regenerative braking when lowering the gate during times when normal power is out.
Again, thanks for all your comments.
I have a vertical gate that is raised by a synchronous motor via a gear box. Once the vertical gate is fully open a brake is engaged to hold the gate in the open position. To lower the gate the brake is released and a resistor load bank is used to absorb the reverse emf that is generated when...