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AKR-30 Series
GE AKR-30 Series User Manual
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77
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Table of Contents
Table of Contents
2
Inspection and Maintenance
4
Renewal Parts
4
General Description
6
Frame Size
6
Operation
6
Fused/Non-Fused
6
Mounting
8
Trip Device
8
Model Number
8
Short Circuit Ratings
9
Storage
10
Drawout Breaker Interchangeability
10
Manual Closing
11
Electrical Closing
11
Breaker Operation
11
Charging Using the
13
Racking Mechanism Interlock
15
Positive Interlock
16
Closing Spring Interlock
16
Disconnect
16
Padlocks
17
Key Interlock-Stationary Breaker
18
Optional Interlocks
18
Breaker Maintenance
18
Lubrication
18
Manual Handle Adjustment
19
Drawout Mechanism Position
20
Slow Closing the Breaker
20
Primary Disconnects
21
Replacement
23
Adjustment
23
Auxiliary Switch
77
Low Voltage Power Circuit Brea Kers
82
Inspectio N and Maintenance
84
Renewal Parts
84
Frame Size
86
Fused/Non-Fused
86
Operation
86
Model N U M Ber
88
Mounting
88
Trip Device
88
Short Circuit Ratings
89
Safety 1
90
Storag
90
Alternate Control Circuit 1
92
Charging Using the Maintenance Handle
93
Mechanism Operation 1
93
Racking M Echanism I Nterlock 1
95
Closing Spring I Nterlock
96
Positive Interlock
96
Discon Nect Position I Nterlock
97
Padlocks 1
97
Key I Nterlock-Stationary Breaker 1
98
Lubrication
98
Optional I Nterlocks 1
98
Manual Handle Adjustment
99
Drawout Mechanism Position
100
Slow Closi Ng the Breaker
100
Primary Disconnects 2
101
Adjustment
102
Auxil Iary Switch 2
102
Replacement
102
Adj Ustment
103
Adjustment
103
Replacement
103
Shunt Trip
103
U Ndervoltage Device
103
Undervoltage Device
103
Adjustments
104
Factory Settings
104
Operational Check
104
Static Time-Delay Undervoltage
105
Bell a Larm
106
Bell Alarm
106
Electric Lockout Device
106
Operation
106
Adjustments
107
Electrical Control Components
107
Replacement
107
Component Replacement
108
Drawout Mechan Ism
109
Drawout Mechanism
109
F and G Switch Adjustment
109
Buffer Assembly
111
Buffer Adj Ustment
112
Buffer Adjustment
112
Tri P Latch Adj Ustment
112
Trip Latch Adjustment
112
Arc Chute Removal & I Nspection
113
Contact Maintenance
113
Akr 30/30H & Akru
114
Contact Adjustment
114
Fuse Sizes and Mounting
121
Special 2500A Fuse for AKRU 50
121
Open Fuse Lockout Device
123
Programmer Unit
125
Type Sst Overcurrent Trip Device
125
Current Sensors
126
0.3 Flux Shift Tri P Device
128
Replacement of Current
128
Troubleshooting
131
Resistance Values 52
132
SST Test Set
132
0.4.3 False Tripping-Br Eakers
133
0.5 Sst Cabling Diag Rams
133
Equ I Pped with G Round Fault
133
Trip Device
134
Fault Trip Indicators
138
M Icroversatri P '" Trip D Evice
138
Programmer Unit
138
Remote Fault Indication
138
Microversatrip� Installation
139
2.2 Current Sensors 60
140
2.2.1 Replacement of Current
143
Sensors
143
Flux Shi Fter Trip Device
144
Troubleshooting
144
False Tri Pping- Breakers Equ Ipped with Ground Fault
145
Microversatrip
145
Resistance Values
145
Testing
148
Arc Chute Removal
211
Contact Adjustment
215
Aka 30/30H & Akru 30
217
Contact Replacement - AKA 50150H, AKRU
217
Fuse Sizes and Mounting
219
Fused Breaker
219
Special 2500 a Fuse for AKRU
219
Open Fuse Lockout Device
221
Typed Adjustment and Breaker Breakerreaker OFLO Adjustmentdjustment
221
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GE AKR-30 Series Specifications
General
Brand
GE
Model
AKR-30 Series
Category
Circuit breakers
Language
English
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