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Switchgear Breaker Function Test Checklist
Eaton 480V SWR Breaker Function Test Checklist
Electrical Switchgear Concept | Types | Applications | Calculations | Tests
| Close breaker from Breaker Control Switch. |
| Breaker Closed. |
| Red Light operational & lens in place. |
| Open breaker from Breaker Control Switch. |
| Breaker Open. |
| Green Light operational & lens in place. |
| Counter Operational. |
| Breaker Position Indication Operational. |
| Spring Condition Indication Operational. |
| Digitrip display operational. |
| Manual ON/OFF Control Operational (On/Off switches under plastic covers on front of breaker). |
| Breaker connected indication = Red. |
| Racking Mechanism Operational – Rack out breaker. |
| Breaker Test indication = Yellow. |
| Breaker Disconnected indication = Green. |
| Pull breaker out of cubicle with handles and slide (do not remove from rails). |
| Verify label on side of breaker matches label on door of cubicle (feeder breaker no./cubicle no.). |
| Shutters Closed. |
| Manually charge spring, close breaker, open breaker. |
| Visually inspect control wiring plugs in the top center of the cubicle, ensure they are not broken. |
| Does the door open and close easily (alignment). |
| Rack breaker back in. |
| Charging Motor Operational. |
Powell 4.16kV SWR Breaker Function Test Checklist
| Close breaker from Breaker Control Switch. |
| Breaker Closed. |
| Red Light operational & lens in place. |
| Open breaker from Breaker Control Switch. |
| Breaker Open. |
| Green Light operational & lens in place. |
| Counter Operational. |
| Breaker Position Indication Operational. |
| Spring Condition Indication Operational. |
| Breaker connected indication. |
| Shutter open indication = Red. |
| Racking Mechanism Operational – Rack out breaker. |
| Breaker Test indication. |
| Breaker Disconnected indication. |
| Shutter Closed indication – Green. |
| Disconnect control cable from front of breaker and roll breaker out of cubicle. |
| Verify label on side of breaker matches label on door of cubicle (feeder breaker no./cubicle no.). |
| Shutters Closed. |
| Ensure rear door of cubicle will open. |
| Visually inspect rear door latch mechanism and ensure it is not bent/broken (lower left rail near rear of cubicle). |
| Does the door open and close easily (alignment). |
| Rack breaker back in. |
| Charging Motor Operational. |
| Ensure rear door of cubicle will not open. |
Eaton 4.16kV MCC Contactor Function Test Checklist
| Disconnect operates correctly (open and close) – freely, no excessive force required. |
| Red arc barriers are in place between the T-lead connections, fuses, & bus on top of contactors. |
| Shutters are closed when disconnect is open. |
| Door will not open when disconnect is closed. |
| Mechanical indicators are operational. |
| All components are in good condition – no damaged, loose, or missing parts. |
| Contactor closes properly. |
| Contactor opens properly. |
| Multilin trip contact opens contactor (if this can be tested). |
METHOD STATEMENT FOR TESTING & COMMISSIONING OF SWITCHGEAR