Sungrow SG4950HV-MV, System Manual

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II
3.2.3 Ventilation Design ............................................................................. 13
3.3 Internal Design of the MV Station................................................................ 13
3.3.1 Internal Components ........................................................................ 13
3.3.2 Cable Entry Design ........................................................................... 14
3.3.3 Internal Devices of the MV Station..................................................... 14
3.3.4 Operations on the DC and AC Side.................................................... 15
4 Delivery
......................................................................................................... 18
4.1 Scope of Delivery ....................................................................................... 18
4.2 Identifying the MV Station........................................................................... 18
4.3 Checking for Transport Damages ............................................................... 19
4.4 Storage of the MV Station........................................................................... 20
5 Mechanical Installation
............................................................................ 21
5.1 Transport ................................................................................................... 21
5.2 Hoisting the MV Station .............................................................................. 22
5.2.1 Safety Precautions ........................................................................... 22
5.2.2 Hoisting ............................................................................................ 22
5.2.3 Fastening of Connectors................................................................... 24
5.3 Foundation................................................................................................. 25
5.3.1 Selection of Installation Site .............................................................. 25
5.3.2 Foundation Requirements................................................................. 25
5.3.3 Recommended Foundation Construction Method ............................. 26
5.3.4 Installating Oil-Water Separator(Optional) ......................................... 28
6 Electrical Installation
................................................................................ 29
6.1 Safety Instructions...................................................................................... 29
6.1.1 Generals Rules ................................................................................. 29
6.1.2 Five Safety Rules .............................................................................. 31
6.2 Preparation before Electrical Connections .................................................. 31
6.2.1 Installation Tools ............................................................................... 31
6.2.2 Opening the MV Station Door............................................................ 32
6.2.3 Checking the Cables......................................................................... 32
6.2.4 During Connection ............................................................................ 32
6.3 Circuit Diagram and Cable Connection ....................................................... 33
6.3.1 Circuit Diagram................................................................................. 33
6.3.2 Cable Specifications ......................................................................... 34
6.4 Ground Connection .................................................................................... 35
6.5 AC Connection ........................................................................................... 37