How to size and set MCCBs on generator and genset main breakers, given the alternator's lower and decaying short-circuit current compared to grid infeed.
How to size and configure a soft starter for reciprocating, screw and centrifugal compressors, from unloader torque through duty cycle and bypass selection.
How split-load and RCBO-per-way consumer units differ, why 30 mA is the domestic sensitivity default, and how TT earthing changes the RCD requirement in a home.
How MCCBs function as incomer and outgoing feeder breakers in main LV distribution boards, from ACB coordination and sub-board selectivity to busbar bracing ...