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Manual Operations
Motor-wound spring operating mechanism FK3-07
for outdoor circuit breaker
26.04.2011
© ALSTOM
• Moisture inside the motor-wound spring operating mechanism causes
condensation and the subsequent corrosion of steel parts.
• This could result in malfunctioning and damage to the motor-wound spring
operating mechanism.
NOTE!
The heater (anti-condensation apparatus) must always
be in service regardless of where the circuit breaker is
located.
Reference documents
The documents listed in the table below form an integral part of these
instructions.
Document number Designation
H48020186 Lubricating instructions
H48020190 Special tools
H48020198 Transport and storage
H48020244 Design of basic operating mechanism FK3-07
H48020245
Mounting the motor-wound spring operating
mechanism FK3-07
H48020246 Operating instructions FK3-07
H48020247 Maintenance FK3-07 AIS
H48020248 Disposal FK3-07 AIS
H48020250 Safety AIS
H48020254 Function description FK3-07
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