Eaton Cutler-Hammer VCP-WR Series Instructions For The Use, Operation And Maintenance page 54

Instruction Book
Page 48 Effective: February 2007
S YM P TOM
Fails To Close
Closing Spring charged but
•
breaker does not close
Undesirably Closes
I NSPE CTIO N ARE A
• No Closing Sound
(Close Coil does not pick up)
• Closing sound
but no close
• Control circuit
Mechanism
•
For more information visit: www.EatonElectrical.com
PROBABLE DEFECTS
• Control Power
(Fuse blown or
switch off)
• Secondary
Disconnects
• Anti-Pump Relay
• (Y relay N. C. contact
open or burned or relay
picks up)
• Close Coil (Open or
burned)
• Latch Check Switch
(Contact open-bad
switch or trip bar
• not reset)
• Auxiliary Switch (b
contact open or
burned)
• Motor Cut-off
• (Contacts open or
burned)
• Trip Coil Assembly
(Clapper fails to reset)
• Pole Shaft (Not
open fully)
• Trip Latch Reset Spring
(Damaged or Missing)
• Trip Bar-D Shaft (Fails to
remain reset)
• Trip Latch-Hatchet (Fails
to remain reset)
• Trip Floor Tripper (Fails
to remain reset)
• Close Latch
(Binding)
• Close Latch Roller
(Binding)
• Trip Circuit Energized
• Close Circuit (CS/C
Getting Shorted)
• Close Release Latch
(Fails to reset)
• Close Floor Tripper
(Fails to reset)
I.B. 8295A61H07