CONTENTS
6. PRESERVICE INSPECTION
7. BASIC BREAKER MAINTENANCE
7.1 MAINTENANCE REQUIREMENTS
7.2
BASIC MAINTENANCE PROCEDURE
8. DETAILED MAINTENANCE INSTRUCTIONS
8.1 CLOSING LINKAGE ECCENTRIC ADJUSTMENT
8.2 CLOSE LATCH ADJUSTMENT
8.3 TRIP LATCH ADJUSTMENT
8.4 DRAWOUT GATE INTERLOCK
8.5 SHUNT TRIP COIL
8.6 UNDERVOLTAGE TRIP DEVICE
8.7 LATCH CHECK SWITCH
8.8 MECHANICAL INTERLOCK
8.9 ANTI-SINGLE-PHASE DEVICE AND BLOWN FUSE
INDICATOR
8.10 USE OF LIMIT SWITCHES IN D.C. CONTROL CIRCUITS
9. MAINTENANCE ACCESSORIES AND SPARE PARTS
9.1 MAINTENANCE ACCESSORIES
9.2 SPARE PARTS
9.3 COIL DATA
1.
GENERAL DESCRIPTION
2. RECEIVING - HANDLING - STORAGE - INSTALLATION
2.1 RECEIVING
2.2 HANDLING
2.3 STORAGE
2.4 MOUNTING
2.5 POWER TERMINAL CONNECTIONS
2.6 SECONDARY CONTROL CIRCUITS
3. BREAKER COMPONENTS AND CONTROLS
3.1 BREAKER SECTIONAL VIEW
3.2 CRADLE SECTIONAL VIEW
3.3
BREAKER FACEPLATE AND CONTROLS
4. BREAKER OPERATION
4.1
DRAWOUT MECHANISM - BREAKER INSERTION AND
REMOVAL
4.2
GROUNDING CONTACT
4.3 SECONDARY CONTROL CONTACTS
4.4 BREAKER CLOSING
4.5 CLOSING MANUALLY OPERATED BREAKER
4.6 CLOSING ELECTRICALLY OPERATED BREAKER
4.7 MECHANICAL CLOSING INTERLOCKS AND PADLOCKING
4.8 BREAKER OPENING
4.9 REJECTION FEATURE
4.10 CLOSING SPRING DISCHARGE AND DRY RUNS
4.11
FAULT PROTECTION
4.12 FUSE MOUNTING
4.13
ANTI-SINGLE-PHASE DEVICE & BLOWN FUSE INDICATOR
4.14
SHUNT TRIP COIL
4.15 AUXILIARY SWITCH
4.16 CLOSING COIL (CC)
4.17 CLOSING COIL LIMIT SWITCH AND ANTIPUMPING FEATURE
4.18 CLOSING SPRING CHARGING MOTOR (SCM)
4.19 SPRING LIMIT SWITCH (SLS)
4.20
LATCH CHECK SWITCH (LCS
)
5. OPTIONAL COMPONENTS
5.1 MECHANICAL OPERATIONS COUNTER
5.2 CELL SWITCHES
5.3 ANTIPUMP RELAY
5.4 UNDERVOLTAGE TRIP DEVICE
5.5 SAFETY INTERLOCK SWITCH (SLS)
5.6 OVERLOAD LOCKOUT DEVICE
5.7 DOOR INTERLOCK
5.8
FACEPLATE KEY INTERLOCK AND CELL KEY INTERLOCK
5.9
MECHANICAL INTERLOCK
5.10 SHUTTERS
