Eaton Cutler-Hammer DSII Series - Page 5

I. B. 694C694-02
Pagev
SECTION 4: BASIC OPERATING INSTRUCTIONS PAGE
4-1 Manual Circuit Breaker Operation ..................................................................................................................... 23
4-1.1 Spring Charge Mechanism for Manually Operated Breakers ............................................................... 23
4-2 Power Circuit Breaker Operation ....................................................................................................................... 24
4-2.1 Spring Charge Mechanism for Power Operated Breakers ................................................................... 25
4-2.2 Power Operation .................................................................................................................................. 29
4-3 Closing Mechanism ........................................................................................................................................... 29
4-4 Opening (Tripping) Mechanism .........................................................................................................................
31
4-5 Mechanical Interlocking System Description ..................................................................................................... 34
4-5.1 Remove Position .................................................................................................................................. 34
4-5.2 Disconnect Position .............................................................................................................................. 34
4-5.3 Test Position ......................................................................................................................................... 34
4-5.4 Connect Position .................................................................................................................................. 36
4-5.5 Mechanical Interlocking System Operation .......................................................................................... 36
4-5.6 Spring Discharge Interlock ................................................................................................................... 38
4-5.7 Connected Breaker Manual Close lnterlock ......................................................................................... 38
4-5.8 Electric Lockout Equipped Breaker ...................................................................................................... 38
4-5.9 Closed Breaker Interlock ...................................................................................................................... 38
4-5.10 Padlocking Provision ............................................................................................................................ 40
4-6 DSLll Circuit Breaker
and Fuse Truck ............................................................................................................... 41
4-6.1 DSLll Current Limiters .......................................................................................................................... 42
4-6.2 Blown Limiter Indicator ......................................................................................................................... 42
4-6.3 Fuse Truck ........................................................................................................................................... 42
4-6.4 Fuse Truck Installation and Use ........................................................................................................... 43
4-6.5 Fuse Replacement ............................................................................................................................... 43
4-6.6 Blown Fuse Indicator ............................................................................................................................ 43
SECTION 5: INSPECTION AND MAINTENANCE
5-1 General ............................................................................................................................................................. 45
5-2 General Cleaning Recommendations ............................................................................................................... 45
5-3 When to Inspect ................................................................................................................................................ 45
5-4 What to Inspect ................................................................................................................................................. 45
5-4.1 DSll-308 Through DSll-620 Inspection ............................................................................................... .46
5-4.2 DSll-632
and DSll-840/850 lnspection ................................................................................................ .46
5-4.3 DSll-308 Contact Replacement ............................................................................................................ 46
5-4.4 DSll-516 Through DSll-840/850 Contact Replacement ....................................................................... 46
5-4.5 Arc Chutes ............................................................................................................................................ 47
5-4.6 Power Operated Mechanism ................................................................................................................ 48
5-5 Factory Adjustments .......................................................................................................................................... 48
5-5.1 Trip Latch Overlap Adjustment ............................................................................................................. 50
5-5.2 Breaker Open Position Stop Adjustment (DSll-632 Only) .................................................................... 50
5-5.3 Moving Contact Adjustment ................................................................................................................. 52
5-5.4 Levering Mechanism Adjustment ......................................................................................................... 52
5-6 Lubrication ......................................................................................................................................................... 53
5-6.1 Lubrication Frequency .......................................................................................................................... 53
5-6.2 Lubrication Location ............................................................................................................................. 53
SECTION 6: RENEWAL PARTS
6-1 General ............................................................................................................................................................. 56
Effective 07 /97
Courtesy of NationalSwitchgear.com