ABB VUBB, Installation And Commissioning Manual

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Installation and commissioning guide
1ZSC000562-AAK EN, REV. 2, 2019-07-03
7 Oil-filling 53
7.1 Preparations ................................................................................................................................................................................ 53
7.2 Oil-filling with the atmospheric process ....................................................................................................................................... 54
7.3 Oil-filling with the vacuum process .............................................................................................................................................. 57
8 Electrical connection and testing 61
8.1 Connection of the operational circuits ......................................................................................................................................... 61
8.2 Testing of the electrical connections............................................................................................................................................ 62
8.2.1
Testing of BUE2......................................................................................................................................................... 62
8.2.2 Testing of BUL2 ......................................................................................................................................................... 65
8.3 Testing of the protection devices ................................................................................................................................................. 67
9 Preparations for transportation to site 69
9.1 General........................................................................................................................................................................................ 69
9.2 Transportation with transformer oil in the transformer................................................................................................................. 69
9.3 Transportation without transformer oil in the transformer............................................................................................................ 71
10 Commissioning at site 73
10.1 Installation of the removed parts ................................................................................................................................................. 73
10.2 Connection of the electrical connections..................................................................................................................................... 73
11 Spare parts 75
11.1 Summary ..................................................................................................................................................................................... 75
12 Disposal and enviromental information 77
12.1 Overview ..................................................................................................................................................................................... 77
12.2 Disposal and recycling ................................................................................................................................................................ 77
13 References 79
13.1 Summary ..................................................................................................................................................................................... 79