Siemens SINOVA Manuals

Manuals and User Guides for Siemens SINOVA. We have 1 Siemens SINOVA manual available for free PDF download: Manual

Siemens SINOVA Manual (220 pages)

3WJ Air circuit breakers

Brand: Siemens | Category: Protection Device | Size: 51.95 MB

Table of Contents
4
Introduction
7
Technical Support
7
Safety Instructions
8
Standards
9
Transport
9
Description
11
Mechanical Components
11
Design
11
Circuit Breaker
11
Guide Frame
13
Circuit Breaker Identification
14
Accessory and Rating Label
14
Indicators of the Circuit Breaker
16
Operation
17
Installation
17
Racking the Circuit Breaker in or out
19
Position of the Circuit Breaker in the Guide Frame
22
Removing the Circuit Breaker from the Guide Frame
23
Inserting the Circuit Breaker into the Guide Frame
24
Closing and Opening
25
Commissioning Checklist
29
Connection
30
Main Connections
30
Secondary Disconnect Terminals
36
Connecting the Protective Conductor
39
Electronic Components
40
Electronic Trip Unit (ETU) - Functional Overview
40
Etu350Wj
42
Etu360Wj
45
Indicators on the ETU
49
Protection Functions
51
Basic Protection Functions
51
LT: Overload Protection (Long Time), L-Tripping
51
ST: Short-Time Delay Short-Circuit Release (Short Time), S Tripping
52
INST: Instantaneous Short-Circuit Release (Instantaneous), I-Tripping
52
GF: Ground-Fault Protection (Ground-Fault), G-Tripping
53
N: Neutral Conductor Protection (Neutral), N-Tripping
53
Additional Functions
53
Menus on the Displays of the ETU350WJ and ETU360WJ
54
Recommissioning after Opening Operation by Electronic Trip Unit
56
Accessories
57
Overview
57
Preparatory and Concluding Installation Steps for the Installation of Internal Accessories
58
Control and Signaling Accessories
61
Overview
61
Closing Coil, Shunt Trip and Undervoltage Release
62
Installation
67
Part Number
68
Counting Mechanism
69
Monitoring Switches and Signaling Accessories
71
Position Signaling Switch for Guide Frame
71
Accessories for Main Connections
73
Connection Bars for Guide Frame (Frame Size I)
73
Connection Bars for Guide Frame (Frame Size II)
77
Vertical Connections for Fixed-Mounted Circuit Breaker
81
Accessories for Secondary Disconnect Terminals
84
Secondary Disconnect Terminals for Fixed-Mounted Circuit Breakers
84
Secondary Disconnect Terminals for Withdrawable Circuit Breakers
86
Accessories for the Electronic Trip Unit
87
Hand-Held Test Device
87
External Transformer for Neutral Conductors (for ETU360WJ)
92
Retrofitting the Internal N Transformer
95
Conversion Sets - Fixed-Mounted Circuit Breakers to Withdrawable Circuit Breakers
98
Accessories for Locking and Interlocking
106
Safety Locking Device
106
Mounting Set for 3WJ Lock or CASTELL Lock
108
3WJ Lock (Set), 3 Locks with 2 Keys
110
Door Interlock
117
Door Interlock for Fixed-Mounted Circuit Breaker
117
Door Interlock for Guide Frame
120
Mechanical Interlock
124
Information about Mechanical Interlock
124
Mechanical Interlock of Fixed-Mounted Circuit Breakers
130
Mechanical Interlock of Withdrawable Circuit Breakers
135
Installing Bowden Wire
139
Accessories for Integration in the Power Distribution Equipment
142
Door Sealing Frame IP41
142
Protective Cover IP55
144
Arc Chute Cover
145
Shutters
149
Phase Barrier
156
Phase Barrier for Fixed-Mounted Circuit Breaker
157
Phase Barrier for Guide Frame
162
Inspection & Maintenance
166
General
166
Safety Regulations
168
Planning of Inspection and Maintenance
169
Inspection Interval
169
Scope
169
Logging
171
Performing Inspection
172
General
172
Visual Inspection
172
Check of the Available Documentation and of the Rating/Accessory Label
173
Testing of Mechanical Function of the Circuit Breaker
173
Testing of Mechanical Function of the Withdrawable Circuit Breaker and the Guide Frame
174
Testing of Auxiliary Circuits
174
Testing of Mechanical and Electrical Function of Internal Accessories
175
Testing of Settings and Inspection of the Electronic Trip Unit
176
Inspection of Arc Chutes, Arc Chute Covers and Main Contact System
177
Checking the Wear on the Contacts
178
Preparation for Maintenance Work
179
Maintaining the Arc Chutes
181
Maintaining the Main Contact System
182
Technical Specifications
197
Circuit Diagrams
197
Overall Circuit Diagram
197
Terminal Connection Diagram of Secondary Disconnect Terminals
199
Circuit Diagram for Undervoltage Release with Delay
200
Dimension Drawings
200
Fixed-Mounted Circuit Breakers
200
Withdrawable Circuit Breakers
203
Accessories 3 Pole / 4 Pole
204
Door Cutout
206
Current Transformer for N Conductor
207
Troubleshooting
208
Disposal
210
ESD Guidelines
211
List of Abbreviations
213
Glossary
216

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