ABB SPRING OPERATING DEVICE FSA 1

Voltage Detector

ABB OPERATING DEVICE FSA 1

Operation and Control
Operating Mechanism - Control Cubicle
Control voltage
Control voltage is a DC supply used for the control circuits
such as: Close circuit and trip circuits etc.
Common rated control voltages:
110, 125, 220 or 240 V DC
(Less common rated control voltages: 250, 60 or 48 V DC)
The operating mechanism, including the control circuit, is de-
signed for a rated control voltage but must additionally have
operational capability throughout a specific voltage range
to accommodate variations in supply voltage. The following
required voltage ranges are required according to IEC:
Minimum voltage (auxiliary equipment): 85% of rated voltage
Maximum voltage (auxiliary equipment): 110% of rated voltage
Minimum voltage (close circuit): 85% of rated voltage
Maximum voltage (close circuit): 110% of rated voltage
Minimum voltage (trip circuit): 70% of rated voltage
Maximum voltage (trip circuit): 110% of rated voltage
Heating voltage / AC Auxiliary voltage
AC Auxiliary voltage is an AC single-phase (phase – neutral) sup-
ply used for Heaters, Socket outlet and Lighting etc. when used.
Normal values:
110 - 127 V AC
220 - 254 V AC
Motor voltage
Motor voltage is a DC supply or an AC single-phase (phase –
neutral) supply for the spring charging motor.
Common rated motor voltages:
110, 125, 220 and 240 V DC
115, 120, 127, 230 and 240 V AC
The motor and the motor circuit are designed for a rated
voltage but must additionally have operational capability
throughout a specific voltage range to accommodate varia-
tions in supply voltage. The following required voltage range is
required according to IEC:
Minimum voltage for motor circuit: 85% of rated voltage
Maximum voltage for motor circuit: 110% of rated voltage
Closing spring charge motor
The closing spring charging motor charges the closing spring
after every closing operation.
Motor contactor
Motor contactor is controlled by the limit switch and starts /
stops the closin