Mining electrical outlet protection devices test unit

摘要

#$%^&*AU2018204677A120190207.pdf#####Abstract There is provided herein mining electrical outlet protection devices test unit comprising a controller comprising a microprocessor, a memory device in operable communication with the processor, the memory device comprising a plurality of computer program code instruction modules, a user interface in operable communication with the processor; and a plurality of relay control outputs in operable communication with the processor to configure a test circuit configured for fault testing steps of industrial electrical power supply switchboards. The test circuit may comprise a phase selection sub circuit comprising relays controllable by the controller to select one selected phase of three phases at a time for various of the sub-tests disclosed herein. The test circuit is configured for performing any combination of earth continuity, frozen contact, earth leakage lockout earth leakage testing, phase voltage testing and phase rotation testing or singular protection device test to suit a variety of possible configurations of switch board in a comprehensive manner. 121/4 3 Connect 8 Earth continuity testing 10 Initialise User confirm 12 | Open pilot disconnection reay 27 Pilt hor tstiq |T erminal module/ remote switch ,,24 Pilot short testi.g 25 Pilot open testing 26 | Close pilot open/short relay 28 Frozen contact testing 30 0 en lot open/short ra |User confirm 31 | Close Phase Selectio Relay 40 Per phase repeat 44 Close Frozen contact relay | Close power supply contact 42 Increase voltae e43 Earth leakage lockout testing 44 ............. ...... .. User confirm 47 Per phase repeat 51 Close Phase Selection Rela 48 Per bank repeat 50 Close ELL Relay 1 49 Earth leakage testing 52 7|User select resistive bak 5 5 |User confirm 56 Per phase/ Close Phase Selection Rela resistor repeat 64 | Close Earth leakage relay 62 Measure response times 63 Phase voltage testing 7 1 ............................................... I.--------------------------| User Confirm 71 | Read signal from Filter7 | Display Snapshot of volatqe 73 ..Phase rotation testing 78 1 User Confirm 74 Read signal from phase rotation 75 Display Phase Rotation 76 FIG. 1