Siemens SBA 800 - Page 31

103 pages

To Next Page

To Previous Page

Operations- Fault Protection Adjustments

Trip Unit Current Shaping Adjustments

(This curve is for illustration purposes only)

Courtesy of NationalSwitchgear.com

Main Page

Table of Contents3
General Information4
Introduction4
Frame Sizes and Frame Ratings5
Rating Plugs5
Interruption and Short Time Ratings5
Overcurrent Protection Configurations5
RMS Current Sensing5
Accessories5
Description6
Insulated - Encased Construction6
Compact Size7
Bus Spacing and Connections8
Two-Step Stored Energy Mechanism8
Centralized Controls and Indicators8
Simplified Minimum Depth Drawout Mechanism9
Electronic Trip Unit10
Overcurrent Protection Configurations10
Frame Installation Instructions11
Installing the Stationary Drawout Element11
Installing the Moveable Drawout Element12
Installing Fixed - Mounted Circuit Breakers13
Installing the Electronic Trip Unit14
Inserting/Removing Rating Plug16
Operating Instructions18
Part One - Operating the SB Encased Systems Breaker18
Manually Charging the Stored Energy Mechanism19
Discharging the Stored Energy Mechanism20
Locally Closing the Circuit Breaker20
Locally Opening the Circuit Breaker20
Part Two - Manipulating the Moveable Drawout Element21
Racking Controls22
Directional Shift Lever22
Racking Pump Handle23
Drawout Position Indicator23
Fully Withdrawn and Unlocked Position24
Unlocked to Test Position25
Test to Connected Positions26
Connected to Test Position27
Test to Unlocked Position28
Rotating the Moveable Drawout Element29
Part Three - Monitoring the Electronic Trip Unit30
Internal Accessories38
Preliminary Installation Procedures38
Electric Motor Operator43
Local Electric Close49
Remote Close Assembly50
Auxiliary Switches54
Undervoltage Release56
Shunt Trip58
Electronic Bell Alarm61
Remote Indicator Panel62
External Accessories65
Ground Fault Monitor65
Display Module65
Ground Fault Sensing and Relaying66
Key Interlock69
Drawout Padlock70
Closing Blocking Device70
Cell Switches71
Drawout Safety Shutters72
Secondary Disconnects74
Control Terminal Blocks74
Sliding Secondary Disconnects75
Pressure Wire Connectors76
Neutral Sensing Transformer77
Lifting Device Bracket79
Auxiliary Power Source80
Universal Test Kit81
Dead Front Shield83
Outline Dimension Drawings84
1200A Stationary Drawout84
1200A Moveable Drawout86
2000A Stationary Drawout88
2000A Moveable Drawout90
1200A Fixed-Mounted92
2000A Fixed-Mounted94
Ordering Information96
Electronic Trip Units96
Rating Plugs97
Internal Accessories98
External Accessories99
UL Listings and File Numbers99
Accessory Wiring Diagrams100

Siemens SBA 800 - Page 31

Table of Contents

Related product manuals