Sungrow MVS6250 User manual

MVS6250_6800-SEN-Ver11-202003
MVS6250/MVS6800
MV Station
Transportation and Installation Guide

I
Contents
1About This Manual................................................................... 1
1.1 Validity .........................................................................................................1
1.2 Target Group ...............................................................................................1
1.3 Symbols Explanation...................................................................................1
1.4 Terminology.................................................................................................3
2Safety Instructions ................................................................... 4
2.1 General Safety Rules ..................................................................................4
2.2 Ground Fault Protection ..............................................................................5
2.3 Live Line Measurement ...............................................................................5
2.4 Measuring Instrument..................................................................................5
2.5 Voltage-free Operations ..............................................................................6
2.6 ESD Protection ............................................................................................6
2.7 Symbols on the Device Body ......................................................................6
2.8 Safety Warning Signs..................................................................................6
2.9 Daily Operation and Maintenance ...............................................................7
2.10 Others ................................................................................................7
2.10.1 Manual Storage.................................................................................7
2.10.2 Disposal of Waste .............................................................................8
2.10.3 Manual Description ...........................................................................8
3Product Description ................................................................. 9
3.1 System Overview ........................................................................................9
3.2 External Design ...........................................................................................9

II
3.2.1 Composition ........................................................................................9
3.2.2 MV Station Views ............................................................................. 10
3.2.3 Exterior Dimensions ......................................................................... 11
3.3 Internal Design ......................................................................................... 11
3.3.1 Internal Composition ........................................................................ 11
3.3.2 Bottom Cable Entry .......................................................................... 12
3.3.3 Internal Devices ............................................................................... 13
4Identify and Store the MV Station ........................................... 16
4.1 Identifying the MV Station ........................................................................ 16
4.2 Checking for Transport Damages ............................................................ 16
4.3 Storage of the MV Station ........................................................................ 17
5Mechanical Installation........................................................... 18
5.1 Transport .................................................................................................. 18
5.2 Hoisting the MV Station ............................................................................ 19
5.2.1 Safety Precautions ........................................................................... 19
5.2.2 Hoisting ............................................................................................ 20
5.2.3 Fastening of Connectors .................................................................. 21
5.3 Foundation................................................................................................ 22
5.3.1 Selection of Installation Site ............................................................. 22
5.3.2 Foundation Requirements................................................................ 22
5.3.3 Recommended Foundation Construction Plan ................................ 23
5.3.4 Other Precautions ............................................................................ 25
5.4 Securing the MV Station(optional)............................................................ 25
5.5 Removing Sealing Plates, Sealing Tapes and Fasteners ........................ 26
5.6 Opening the Door of Transformer Room .................................................. 27
5.7 Clearance Requirement............................................................................ 28

III
6Electrical Installation .............................................................. 29
6.1 Safety Instructions .....................................................................................29
6.1.1 General Rules ...................................................................................29
6.1.2 Five Safety Rules ..............................................................................31
6.2 Circuit Diagram..........................................................................................31
6.3 Cable Connection......................................................................................32
6.3.1 Ground Connection ...........................................................................33
6.3.2 LV Side Connection ..........................................................................34
6.3.3 MV Side Connection .........................................................................37
6.3.4 Communication Cable Connection ...................................................37
6.3.5 Auxiliary Power Supply Cable Connection .......................................37
6.4 Checking after Electrical Connection ........................................................38
7Checking before Power-On and Power- Off............................ 40
7.1 MV Station Container ................................................................................40
7.2 MV Switchgear ..........................................................................................40
7.3 MV Transformer ........................................................................................41
7.4 LV Cabinet.................................................................................................43
8Troubleshooting..................................................................... 44
9Routine Maintenance ............................................................. 46
9.1 Safety Instructions .....................................................................................46
9.1.1 Safety Rules......................................................................................47
9.2 Maintenance ..............................................................................................47
9.2.1 Introduction .......................................................................................47
9.2.2 Maintenance Interval.........................................................................47
9.3 Maintenance Items ....................................................................................48
10 Routine Maintenance ............................................................. 52