Siemens 3AH Manual de instruções - Página 3

Procurar online ou descarregar pdf Manual de instruções para Unidade de controlo Siemens 3AH. Siemens 3AH 38 páginas. Vacuum circuit breaker operator module
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Siemens 3AH Manual de instruções
Vacuum Circuit Breaker Operator Module

Table of Contents

Table of Contents
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Table of Illustrations
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Introduction ............................................................................... 3
Qualified Person ........................................................................ 3
Signal Words ............................................................................. 3
Dangerous Procedures .............................................................. 3
Field Service Operation ............................................................. 3
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Introduction ............................................................................... 5
As-Found and Vacuum Check Tests ........................................... 5
Automatic Spring Charging Check ............................................ 5
Introduction ............................................................................... 6
Vacuum Interrupters ................................................................. 7
Phase Barriers ......................................................................... .7
Construction (Figures 1. 2. 5. 6a,and 6b) .................................. 8
Circuit Breaker Pole (Figure 5) .................................................. 8
Current-Path Assembly (Figure 5) ............................................ 8
Vacuum Interrupter ( F igure 5) .................................................. 8
Switching Operation ( F igure 5 and 6a) .................................... 8
Operating Mechanism ............................................................. 8
Construction ........................................................................... 11
Motor Operating Mechanism ( F igure 6a) ................................ 11
Mode of Operation .................................................................. 11
. 6a: · 6 b . and . 7a · � · 7 Cii · ·
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Trip Free Operation (Figures 6a and 6b) .................................. 11
Opening ( F 1gure 6a) ................................................................ 11
Rapid Auto-Reclosing ............................................................ ..15
Manual Operation ................................................................... 15
Manually Charging the Closing Spring (Figures 9a and 9b) .... 15
Manual Closing (F1gure 6a) ..................................................... 15
Manual Opening ( F igure 6a) .................................................... 15
Close coil (52SRC) ................................................................. ..17
Trip coil ( 5 2T) ......................................................................... ..17
( D ual Trip) ( 5 2T 1) or Undervoltage (27)) .............................. 17
(Figures 11. 12 and 13) ....................................................... 17
Capacitor Trip Device ............................................................... 18
Shock Absorber ..................................................................... ..18
Spring Charging Motor ( 8 8) .................................................. ..18
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Introduction and Maintenance Intervals .................................. 19
Recommended HandTools ....................................................... 19
Recommended Maintenance and Lubrication ......................... 19
Checks of the Primary Power Path ........................................... 20
Cleanliness Check .................................................................... 20
Inspection of Flexible Connectors ............................................ 20
Maintenance and Lubrication .................................................. 20
Fastener Check ......................................................................... 22
Electrical Control Checks .......................................................... 23
Check of the Wirin
and Terminals ........................................... 23
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( C ontrol Power Required) ...................................................... 25
Checks of the Spring Charging Motor ( 8 8) ............................... 25
Vacuum Interrupters ................................................................. 25
High-Potential Tests .................................................................. 25
High Potential Test Voltages ..................................................... 25
Vacuum Integrity Test Procedure .............................................. 26
Functional Tests ........................................................................ 27
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Introduction .............................................................................. 28
Circuit Breaker Overhaul .......................................................... 28
Replacement at Overhaul ........................................................ 28
Replacement of Vacuum Interrupters ...................................... 28
Hydraulic Shock Absorber ........................................................ 31
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