Eaton Cutler-Hammer VCP-WR Series Instructions For The Use, Operation And Maintenance page 55

S YM P TOM
Fails To Close
• No trip sound
Trip sound but
•
(No trip)
Undesirably Trips
I.B. 8295A61H07
I NSPE CTIO N ARE A
Control circuit
•
• Trip mechanism
• Trip mechanism
• Vacuum interrupter
(one or more welded)
• Control circuit
Mechanism
•
For more information visit: www.EatonElectrical.com
Instruction Book
Effective: February 2007
PROBABLE DEFECTS
• Control Power (Fuse
blown or switch off)
• Secondary Disconnect
• Auxiliary Switch
• (a contact not making,
poor or burned)
• Trip Coil (Burned or open)
• Terminals and Connections
(Poor or burned or open)
• Trip Clapper (Jammed)
• Trip Bar, Trip Latch (Jammed)
• Pole Shaft (Jammed)
• Operating Rod Assembly
(Broken or pins out)
• Control Power (CS/T Switch,
remains made)
• Trip Coil Clapper (Not
resetting)
• Trip Bar or Trip Latch
(Poor engagement of mating or
worn surfaces)
• Trip Bar Reset Spring (Loss of
torque)
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