Scheduled Maintenance - President's Day Weekend
The U.S. Department of Labor will be conducting scheduled system maintenance beginning Friday, Feb. 15 at 5 p.m. ET through Tuesday, Feb. 19 at 8 a.m. ET. Some pages may be temporarily unavailable. To report an emergency, file a complaint with OSHA, or to ask a safety and health question, call 1-800-321-6742 (OSHA).

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Substation Equipment: Supervisory Control

Supervisory Control
Supervisory control refers to equipment that allows for remote control of a substation's functions from a system control center or other point of control. Supervisory control can be used to:
  • operate circuit breakers,
  • operate tap changers on power transformers,
  • supervise the position and condition of equipment, and
  • telemeter the quantity of energy in a circuit or in substation equipment.
Figure 1. Supervisory control room
Figure 1. Supervisory control room
Figure 2. Supervisory control panel
Figure 2. Supervisory control panel
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