Eaton LBS Series User Manual Download

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I.B.

48030

Cutler-Hammer

Instructions for Installation, Operation, and Maintenance of
Type LBS Medium-Voltage Disconnect Switch rated 7.2kV

Fig. 1

Typical LBS Switch with Auxiliary Fuse Compartment

Read and understand these instructions before attempting any
Installation, Operation or Maintenance of an LBS switch.

Cutler-Hammer

Power Distribution and Assemblies Division
Arden NC 28704

Effective February 2001

Summary of Contents for LBS Series

Page 1: ...age Disconnect Switch rated 7 2kV Fig 1 Typical LBS Switch with Auxiliary Fuse Compartment Read and understand these instructions before attempting any Installation Operation or Maintenance of an LBS...

Page 2: ...to 7200 volts and may be supplied with or without fuses A Type LBS switch without fuses is capable of closing under fault conditions and interrupting magnetizing and load currents but is not intended...

Page 3: ...the work to be performed the safety equipment required and hazards involved Read and understand these instructions before attempting any assembly operation or maintenance of an LBS switch Disconnect a...

Page 4: ...respectively This can be checked by closing the switch and then partially opening it using the maintenance hub as described in Section 5 1 3 c In the closed position the drive rod links and shaft ears...

Page 5: ...the LBS switch Refer to the specific order drawings for a description of operation for these interlock schemes when provided 4 2 Switch Operation CAUTION Attempting to operate an LBS Switch with a key...

Page 6: ...TENANCE An LBS switch should be thoroughly inspected prior to initial energizing Every 100 operations or yearly thereafter a cursory inspection to clean lubricate and check for signs of wear and tear...

Page 7: ...not overtighten To verify that the mounting bracket bolt has not been overtightened push the flicker blade to the rear It should rebound smoothly Fig 7 Use of Maintenance Hub 5 1 4 Interphase Barrier...

Page 8: ...insure smooth operation of the switch To align the blades and jaw after one or both have been replaced follow the procedure below Loosen the four hinge bolts and the two break jaw bolts Insert the rem...

Page 9: ...erminal pad and finger tighten the four bolts Align the blade per paragraph 5 2 3 Tighten the jaw and hinge mounting bolts Lubricate per Sec 5 4 Align flicker blade and arc chute per paragraph 5 2 4 C...

Page 10: ...12 Break Jaw Lubrication Section 6 Bolt Tightness for Connections to Terminal Pads Use the following torque value for tightening bus joints Note This table is for bus connections only Use the special...