Breaker Testing
480V Breaker - Ductor + Megger
A guided practice module for sequencing breaker operation, ductor lead placement, megger setup, and report quality.
Breaker
TRIPPED
Score Preview
100%
Mode
Guided
Training Mode
Guided mode shows the next action. Test mode keeps the checklist but removes the coaching tone.
Step Checklist
Safety Brief
Before This Simulator
In the field, perform LOTO and live-dead-live before touching the breaker: prove the tester on a proving unit or known live 480V source, test the breaker for absence of voltage, then prove the tester again. This simulator starts after that safety hold point.
Breaker Handle
Current Position
TRIPPED
Fake Test Equipment
Meter Cart
MEGGER DLRO / AEMC MICRO-OHMMETER PROFILE
READY uOhm
Expected: micro-ohm / low resistance across contacts
Instrument
Ductor Setting
Breaker Work Area
480V Breaker Mockup
Drag a lead puck to a lug, or tap Red/Black and then tap a terminal.
Molded Case Breaker
480V
TRIPPED
Tap handle to reset to OFF
Red lead
Not placed
Black lead
Not placed
Contact Resistance Readings
Close breaker to ON, set micro-ohm / low resistance, and test A/B/C LINE-to-LOAD across closed contacts.
Closed Breaker Phase-to-Ground Megger
Keep breaker ON, set 1000V DC, and test LINE A/B/C to the ground bar.
Closed Breaker Phase-to-Phase Megger
Keep breaker ON, set 1000V DC, and test A-B, B-C, and C-A from the LINE lugs.
Open Contact LINE-to-LOAD Megger
Open breaker to OFF, set 1000V DC, and test across open contacts A/B/C LINE-to-LOAD.
Mistakes Tracked
No mistakes yet. Clean sequence, correct meter setup, and correct lead placement will protect your score.
Final Report
Profile History
No saved attempts yet. Your first completed report will appear here and on the simulator landing page.