S&C Electric Company

Source-Transfer PMH Pad-Mounted Gear

Construction Detail — Transfer Control

Close-up of Micro-At®.
  1. Left and right source voltage indicating lamps light when “acceptable” voltage is present.
  2. Automatic-transfer “ready” indicating lamp provides straightforward indication that source-transfer control, switches, and switch operators are all properly set and ready for automatic transfer.
  3. Overcurrent-lockout indicating lamp lights when an overcurrent occurs. The optional overcurrent lockout feature prevents the gear from transferring into a fault.
  4. Two-line x 24-character LCD with backlighting.
  5. Test keys for simulating overcurrent and loss of voltage on left-hand sources.
  6. Keypad for input of programming parameters.
  7. Manual/automatic operation selector switch.
  8. Menu keys — voltage, current, time, event, con-figure, test, and examine.
  9. Last and next item keys.
  10. Test keys for simulating overcurrent and loss of voltage on right-hand sources.