NAA99AA Transferred Trip Auxiliary Relay

NAA99AC Reclosing Blocking Auxiliary Relay

NAA99AB Special Relay

NAA99AE Auxiliary Relay

NAA99AF Ground Distance Auxiliary Relay

NAA99AG Transferred Trip Auxiliary Relay

NAA99AI Ground Distance Auxiliary Relay

NAA99AH Auxiliary Relay

NAA99AJ Out-of-step Angle Impedance Relay

NAA99AR Transferred Trip Auxiliary Relay

NAA99AS Transfer Trip Auxiliary Relay

NAA99AT Carrier Auxiliary Relay

NAA99AU Ground Distance Auxiliary Relay