Metal-clad and metal-enclosed switchgear are both types of enclosed switchgear used in electrical power systems to protect and control electrical equipment. However, they differ in their construction, fault containment capabilities, and personnel safety features. Metal-clad switchgear is characterized by its compartmentalized construction. Each major component, such as circuit breakers, transformers, and busbars, is housed in a separate grounded metal compartment. This compartmentalization provides superior fault containment. If a fault occurs in one compartment, the metal enclosure is designed to contain the arc and prevent it from spreading to other compartments. The circuit breaker in metal-clad switchgear is typically withdrawable, allowing i....
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