Checking The High-Current Contacts Made At The Factory; Checking The Connections Of The Cables For Communication, Control Supply Voltage And Monitoring; Checking The High-Current Contacts Made At The Installation Site - SMA MEDIUM VOLTAGE POWER STATION 500SC-JP System Manual

SMA Solar Technology AG
Procedure:
1. Ensure that all metal devices of the MV Power Station have been professionally connected to the grounding
busbar (see circuit diagram of the MV Power Station).
2. Ensure that the grounding busbar has been professionally connected to the external grounding system.
6.3.2.2

Checking the High-Current Contacts Made at the Factory

High-current contacts made at the factory
High-current contacts made at the factory are marked off. Providing that the marking is not damaged and runs in
a straight line across the bolted connection, this means that the torque complies with the specifications.
Procedure:
• Check whether the high-current contacts made at the factory
are correctly marked off.
If a high-current contact is not correctly marked off, release the high-current contact, tighten with the required
torque and mark off again.
6.3.2.3 Checking the Connections of the Cables for Communication, Control Supply
Voltage and Monitoring
Test Point Tasks
Cables Ensure that the cable type and cross-section, the number of cables and the labeling comply
with the specifications in the schematic diagram.
Cable connection Ensure that the cable connection complies with the specifications in the schematic diagram.
If no external fast stop is to be installed, ensure that the terminals are wired with a jumper
wire in accordance with the schematic diagram.
Cable insulation Make sure that the insulation of the cables is correctly stripped. The insulation must not pre-
vent the contact with the terminal.
Bootlace ferrules Ensure that the bootlace ferrules are correctly crimped and that no stranded wires are visible.
Cable support rails Ensure that the cables are adequately attached to the cable support rails.
Shield clamping sad- Ensure that the contact between the cable shield and the shield bus is intact.
dles
6.3.2.4

Checking the High-Current Contacts Made at the Installation Site

Test point Tasks
Cables Ensure that the cable type and cross-section, the number of cables and the labeling comply
with the specifications in the schematic diagram.
System Manual
6 Commissioning
MVPS22JP-SH-en-11 75