Table of contents
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
5
5 Connection and commissioning ........................................................................................................... 163
5.1 Safety regulations and information ....................................................................................... 163
5.2 Mounting and connecting the device .................................................................................... 164
5.2.1 Tightening torques at a glance ............................................................................................. 164
5.2.2 Mounting connections ........................................................................................................... 165
5.2.3 Fixed breaker: Installing the circuit breaker .......................................................................... 172
5.2.4 Withdrawable breaker: Installing the circuit breaker / guide frame ....................................... 174
5.3 Mounting accessories ........................................................................................................... 177
5.3.1 Installing accessories ............................................................................................................ 177
5.3.2 Examples of mounting internal accessories ......................................................................... 184
5.4 Function test of the ETU ....................................................................................................... 187
5.5 Commissioning ..................................................................................................................... 189
5.5.1 General tests ......................................................................................................................... 189
5.5.2 Procedure for testing the accessories .................................................................................. 191
5.5.3 Final tests .............................................................................................................................. 193
6 Operation ............................................................................................................................................ 195
6.1 Operation .............................................................................................................................. 195
6.1.1 Closing and opening manually .............................................................................................. 195
6.1.2 Entering parameters ............................................................................................................. 197
6.1.3 Racking the circuit breaker (withdrawable breaker) ............................................................. 200
6.2 Alarms ................................................................................................................................... 203
6.3 Troubleshooting .................................................................................................................... 209
7 Service and maintenance .................................................................................................................... 211
7.1 Safety regulations ................................................................................................................. 211
7.2 Tests during inspections and after tripping ........................................................................... 212
7.3 Maintenance intervals ........................................................................................................... 212
7.4 Enclosure, terminals, and control panel................................................................................ 213
7.4.1 Checking and cleaning the housing ...................................................................................... 213
7.5 Basic unit and accessories ................................................................................................... 214
7.5.1 Removing the front plate and accessories............................................................................ 214
7.5.2 Cleaning and lubricating the tripping mechanism ................................................................. 215
7.5.3 Inspecting the accessories ................................................................................................... 215
7.5.4 Testing the ETU .................................................................................................................... 216
7.6 Final tests .............................................................................................................................. 217
8 Technical specifications ...................................................................................................................... 219
8.1 Technical data 3WL10 .......................................................................................................... 219
8.2 Technical specifications - 3VA27 .......................................................................................... 220
To Next Page
Loading...
