Distribution systems have switches installed at strategic locations to redirect or cut-off power flows for load balancing or sectionalizing. Also, this permits repairing of damaged lines or equipment or upgrading work on the system. The many types of switches include:
- circuit-breaker switches
- single-pole disconnect switches
- three-pole group-operated switches
- pad-mounted switchgear
 Figure 1. Air circuit-breaker switches |
 Figure 2. Air-break isolator switch |
 Figure 3. Circuit switchers |
 Figure 4. Single-pole disconnect switch combined with a fuse is called a fused cutout |
 Figure 5. Circuit breakers |
 Figure 6. Pad mounted switchgear |
 Figure 7. Group-operated three-pole air break switch |
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