GE AKR-30 Series Maintenance Manual page 166

SECTION 1
1 .0 INTRODUCTION
1 . 1 I nspection and Mai ntenance
1 .2 Renewal Parts
SECTION 2
2.0 GEN ERAL D ESCR I PTION
2.1 Frame Size
2.2
Operation
2.3
Fused/Non-Fused
2.4 Mounting
2.5 Tri p Device
2.6
Model N um ber
2.7
Short Circuit Ratings
SECTION 3
3.0 STORAGE
3 . 1 Safety
3.2
Maintenance
SECTION 4
4.0 D RAWOUT BREAKER
I NTERC HANGEA B I LITY
SECTION 5
5.0 BREAKER O PERATION
5.1 Manual Closing
5.2 Electri cal Closing
5.2. 1 Alternate Control Circuit
5.3 Mechan ism Operation
5.4
Charg i n g Using The
Mai ntenance Handle
SECTION 6
6.0 I NTERLOCKS
6. 1
Racking Mechan ism Interlock
6.2
Positive I nterlock
6.3
Closi ng Spri ng I nterlock
6.4 Discon nect Position I nterlock
6.5
Padlocks
6.6
Key I nterlock-Stat ionary
Breaker
6.7 Optional Interlocks
SECTION 7
7.0 BREAKER MAI NTENANCE
7.1
Lu brication
7.2
Man ual Handle Adj ustment
7.3
Drawout Mechan i sm Pos ition
7.4 Slow Clos i n g the Breaker
7.5
Pri mary Discon nects
7.5.1
Replacement
7.5.2
Adj ustment
2
Low Voltage Power Circuit Brea kers
Table of Contents
Page
4 SECTION 7
4 7.6 Aux i l iary Switch
7.6. 1 Replacement
4
7.6.2
Adj ustment
4
7.7
Shunt Tri p
6
7.7. 1 Replacement
7.7.2
Adj ustment
6
7.8 Undervoltage Device
6
7.8.1 Repl acement
6
7.8.2 Operational Check
6
Adj ustments
7.8.3
8
F actory Settings
7.8.4
8
7.9
8 Static Ti me-Delay Undervo ltage
9 7.9. 1 Adj ustments
7.1 0 Electric Lockout Device
1 0
7. 1 1
Bel l Alarm
1 0
7. 1 1 . 1 Operation
1 0
7. 1 1 .2 Adj ustments
1 0A
7.1 1 .3 Repl acement
7. 1 2 Electrical Control Components
1 0
7. 1 2. 1 Com ponent Replacement
7. 1 2.2 F and G Switch Adj u stment
1 0B
7 . 1 3 Drawout Mechanism
7. 1 4 Buffer Assembly
1 1
7. 1 4 . 1
Buffer Adj u stment
1 1
7. 1 5 Trip Latch Adj ustment
1 1
SECTIO N 8
1 1
1 2 8.0 CONTACT MAI NTENANCE
1 3 8.1 Arc Ch ute Removal & I nspect ion
8.2 Contact Adj ustment -
1 3
AKA 30/30 H & AKRU 30
8.3 Contact Adj ustment -
1 5
AKA 50/SOH & AKRU 50
1 5
8.4 Contact Adj ustment -
1 5
AKRT 50/50H
1 6
8.5 Stationary Contact Identification
1 6
8.6 Contact Replacement -
1 7
AKA 30/30H & AKRU 30
1 7
8.7 Contact Replacement - AKA
50/50H , AKRU 50 & AKRT 50/SOH
1 8
1 8
SECTION 9
1 8
9.0 FUSED BREAKER
9.1
Fuse Sizes and Mounting
1 8
9.2 Special 2500A Fuse For AKRU 50 41
1 8
9.3 O pen Fuse Lockout Device
1 9
9.3. 1 Type A and B Breaker
20
O FLO Adj ustment
20
9.3.2 Type D Breaker
2 1
O FLO Adj ustment
22
22
Page
2 2
22
22
23
23
23
23
23
24
24
25
25
26
26
26
27
27
27
28
29
29
31
32
32
33
33
33
34
36
37
38
39
39
41
41
41
43
43
43