Alstom FKG1X, Инструкция по эксплуатации

Страница: 64 / 274

Function description Function description
FK 3-12 spring operating mechanisms FK 3-12 spring operating mechanisms
For circuit
For circuit brea breakers kers
06.04.2011 06.04.2011 48-020-212EN02 48-020-212EN02
5/15 5/15
Au Auxi xi lili air aire sw e swit it ch ch
• •
Auxiliary switch Auxiliary switch 70.21 Coupled to 70.21 Coupled to main shaft main shaft 70.12 serves as 70.12 serves as a refer- a refer-
ence for the main contact for control, signaling and interlock functions ence for the main contact for control, signaling and interlock functions
• •
When the When the circuit breaker circuit breaker is closed, is closed, one contact one contact of auxiliary of auxiliary switch 70.21 switch 70.21
interrupts the closing coil circuit and thus prevents further electrical ex- interrupts the closing coil circuit and thus prevents further electrical ex-
citation.
citation.
• •
When the When the circuit breaker is circuit breaker is in the in the tripped position, o tripped position, one contact of ne contact of auxil- auxil-
iary switch 70.21 breaks the operating release coil circuit and thus pre- iary switch 70.21 breaks the operating release coil circuit and thus pre-
vents further electrical excitation.
vents further electrical excitation.
Moto Motor limit r limit switch switch
• •
Motor limit Motor limit switch 70.24 closes switch 70.24 closes and interrupts the and interrupts the motor circuit. motor circuit. It also It also
performs interlock functions. performs interlock functions.
• •
While While closing closing spring spring 70.25 70.25 is is being being charged, one charged, one contact contact of m of motor otor limit limit
switch 70.24 interupts the closing coil circuit and thus prevents switch 70.24 interupts the closing coil circuit and thus prevents
premature electrical closing operation.
premature electrical closing operation.
Me Mechanical clos chanical clos ing ing
interlock interlock
• •
When the When the circuit breaker is circuit breaker is closed, a closed, a lever coupled lever coupled to main to main shaft 70.12 shaft 70.12
disables closing latch 70.05 and prevents any further release of the disables closing latch 70.05 and prevents any further release of the
closing system.
closing system.
Indicators Indicators
• •
Circuit breaker Circuit breaker position indicator position indicator 70.52 displays 70.52 displays the position the position of the of the main main
contact (I or O). contact (I or O).
• •
Spring position indicator Spring position indicator 70.31 displays the 70.31 displays the state (charged or di state (charged or dis- s-
charged) of closing spring 70.25. charged) of closing spring 70.25.
Au Auxi xi lili air airy d y devi evi ces ces
and tools and tools
• •
Mechanical Mechanical manual manual releases 70.07, releases 70.07, 70.13 permit 70.13 permit switching operations switching operations
during field service. during field service.
• •
Hand crank Hand crank 70.53 permits 70.53 permits manual manual charging of charging of closing spring closing spring 70.25. 70.25.
Ac Ac ces ces so sori ri es es
• •
Cabinet Cabinet to to protect protect against against weather weather and and contact. contact.
• •
Heater Heater to to prevent prevent condensation. condensation.
• •
Mechanical Mechanical operating operating counter counter
• •
Mechanical Mechanical device device to to delay delay opening opening time time (option) (option)
• •
Undervoltage Undervoltage release release (option) (option)
• •
Interior Interior lighting lighting (option) (option)
• •
Other electric Other electrical al equipment equipment as as specified specified by by customer customer (option). (option).