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Warnings regarding high voltages and currents causing serious injury or death.
Describes PowlVac DHP replacement vacuum circuit breakers and their purpose.
Covers bulletin purpose, electronic availability, and associated documents.
Process for establishing an electrically safe work condition per NFPA 70E.
Guidelines for qualified personnel, safe operation, and specific warnings.
Warnings related to X-ray hazards and safety labels.
Describes the PowlVac DHP as a replacement for Westinghouse Type DHP breakers.
Details the stored energy mechanism, its mechanical and electrical components.
Explains control circuits, racking mechanism, interlocks, and MOC actuator.
Describes secondary contacts, ground contact, shutter rollers, and vacuum interrupters.
Procedures for receiving, handling, and storing the circuit breaker.
Comprehensive steps for testing and preparing the breaker for service.
Procedures for inserting and removing the breaker from its compartment.
Importance of regular maintenance, inspection, cleaning, and record-keeping.
Procedures for lubricating, spring removal, and adjusting the mechanism.
Checking for contact erosion, wear, and vacuum integrity.
Details high potential tests, timing, and primary resistance checks.
How to order renewal parts from Powell, specifying necessary information.
Procedures for replacing the vacuum interrupter assembly.
Procedures for cleaning, inspecting, and lubricating sliding contact finger assemblies.
References for replacing coils, relays, switches, kits, and other components.
General| Category | Circuit breakers |
|---|---|
| Model | PowlVac 01.4IB.50032C |
| Rated Current | 3200 A |
| Type | Vacuum Circuit Breaker |
| Trip Unit | Electronic |
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