General Electric microDrill SCR Systems
The 741 GEM3 retrofit kit was devised to allow for in situ upgrades of obsolete components in the legacy microDrill 3000 drive by GE. Two kits provide all necessary means with which to upgrade the electronics to the digital DCM platform.
Armature Supply Unit kit ( ASUKIT )
ASUKIT consists of an adapted DCM rated 1600 amps at 750 volts DC. The ASU is a drop-in replacement for the existing thyristor cell stacks and DCM unit
Field supply unit kit ( FSUKIT )
The field kit consists of a current control DCM unit, as well as a compact 3-phase step-down transformer. The 90 amp Field DCM has ample capacity to control the shunt field winding of a GE752 drilling motor under the most severe loading