Bypass and synchronous transfer arrangement for a medium voltage drive control system

A medium voltage cabinet comprising:

• a medium voltage fused bypass controller in a bottom portion of the cabinet;
• a medium voltage non-fused transfer controller above the fused bypass controller;
• and
• and an output bus above the non-fused transfer controller, connecting the non-fused transfer controller to a variable frequency drive,
• wherein the fused bypass controller and the non-fused transfer controller are rated for voltages between 2300 and 7200 volts and with a current rating greater than 400 amps.

A drive control system comprising:

• a first motor control cabinet housing a first fused medium voltage bypass controller and a first non-fused medium voltage transfer controller above the first fused medium voltage bypass controller;
• a second motor control cabinet housing a second fused medium voltage bypass controller and a second non-fused medium voltage transfer controller above the second fused medium voltage bypass controller;
• an extendable supply bus coupled to both of the bypass controllers and a power supply line;
• an extendable output bus coupled to both of the transfer controllers;
• and
• a variable frequency drive cabinet housing a variable frequency drive, the variable frequency drive coupled to the extendable output bus and the power supply line, wherein the bypass and transfer controllers have current ratings greater than 400 amps.