Tesla Powerwall 2 - Current Transformer Placement; Voltage Tap and Current Transformer Connections

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Figure 57: Voltage Tap Port (left) and four CT Ports (right) on Bottom of Meter

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Product Specifications2
Table of Contents4
Symbols Used7
Save These Important Safety Instructions7
General Information8
Environmental Conditions9
Specifications10
Powerwall 2 AC Electrical Specifications10
Powerwall 2 AC Environmental Specifications10
Registering Powerwall10
Powerwall 2 AC Mechanical Specifications11
Backup Gateway 2 Electrical Specifications11
Backup Gateway 2 Environmental Specifications11
Backup Gateway 2 Mechanical Specifications11
Site Requirements12
Powerwall Physical Requirements12
Powerwall Identification12
Powerwall 2 Mounting Bracket Dimensions13
Powerwall Dimensions and Space Requirements14
Powerwall Recommended Temperature Range15
Powerwall Installation Requirements15
Backup Gateway 2 Installation Requirements15
Installation Instructions17
Powerwall Box Contents17
Powerwall Accessory Bag Contents17
Backup Gateway 2 Box Contents17
Required Tools18
Required Supplies18
Plan the Installation Site19
Wall Mounting19
Floor Mounting19
Cable Entry19
Wiring Specifications20
Transport and Unpack Powerwall21
Removing the Mounting Bracket21
Anchor the Powerwall Mounting Bracket22
Removing Powerwall from Its Box22
Wood Studs23
Anchoring the Bracket to Wood Studs23
Anchoring the Bracket to Blocking between Wood Studs23
Plywood24
Metal Studs24
Anchoring the Bracket to Plywood24
Anchoring the Bracket to Metal Studs24
Anchoring the Bracket to Metal Backing25
Anchoring the Bracket to Metal Backing – High Wind Area25
Concrete or Masonry26
Channel Strut26
Anchoring the Bracket to Concrete or Masonry26
Anchoring the Bracket to Channel Strut26
Back Cable Entry Port Location (Viewed from Front of Powerwall)27
Back Cable Entry Port Location –DETAIL28
Prepare Powerwall for Mounting29
Switching Powerwall off29
Removing the Left Side Cover29
Removing the Side Cable Entry Door30
Moving the Back Cable Entry Plug to the Side Cable Entry Port30
Mount Powerwall on the Bracket31
Leveling Powerwall with a Shim32
Unpack and Prepare the Backup Gateway 2 for Mounting33
Mount the Backup Gateway 234
Mounting the Backup Gateway Enclosure35
Installing the Backplate for Bottom Cable Entry36
Installing the Backplate for Top Cable Entry36
Verify Neutral-Earth Bonding Scheme and Install Earthing Rod37
Switched N-PE Jumper38
N-N Jumper38
Installation in the UK38
Line Conductor Disconnection Only Is Enabled Using an N-N Jumper Bar39
Make AC Power Connections to Supply and Load Panels40
Grid Supply Fuse and Fuse Holder for 16Ka Protection41
Connecting Supply Conductors, Single Phase (Above) or 3-Phase (Below)42
Connecting Home Load Panel, Single-Phase (Above) or 3-Phase (Below)43
Connecting Non-Backup Panel, Single-Phase (Above) or 3-Phase (Below)44
Installing Breaker Busbar, Example for Single-Phase (Above)45
Configuring Powerwall on Three-Phase Installations47
Connect Powerwall to Backup Gateway48
Removing the Wiring Compartment Cover48
Powerwall 2 AC Wiring Compartment Inlet and Connectors48
Powerwall 2 AC Side Cable Port Entry Location49
AC Power Harness50
Powerwall 2 AC Power Harness Connection50
Communication Connector Wiring51
Backup Gateway Communication Connections52
Powerwall Earth/Ground and Communication Connections52
Connector with Terminating Resistor53
Powerwall Communication Termination53
Install Energy Metering for the System54
Embedded Site Cts and Solar CT Connectors54
Site Metering Using Built-In Cts54
CT Installation Using Built-In Site Cts55
CT Installation with Upstream Loads or Generation55
Installing Tesla Solar Cts56
Solar Metering Using Tesla Split-Core Cts56
External Metering57
Installing Ethernet Connection at Backup Gateway 258
Close the Wiring Compartments and Turn the System on59
Install the Deadfront Cover59
Install the Glass Door60
Switching Powerwall on60
Commission the System61
Commissioning Overview61
Serial Number and Password Label61
Troubleshooting66
Technical Support67
Maintenance67
Wiring Reference68
Powerwall68
Backup Gateway 2 Wiring69
Backup Gateway 2 Communication70
System Diagrams71
Installing a Neurio Energy Meter74
Wireless Communication to Backup Gateway 274
Meter Communication Wiring75
Voltage Line Harness with Capped Leads for Single-Phase Service76
Voltage Line Harness for Three-Phase Service76
Current Transformer Placement77
Voltage Tap and Current Transformer Connections77
Meter Placement and CT Wire Lengths78
Current Transformer Orientation78
CT Orientation in Relation to Power Flow78
Current Transformer Capacity79
Multiple Conductors Passing through a Single CT79
Y-Cable Connecting Cts79
Installing the Meter80
To Wire the Voltage Taps80
To Locate the Cts80
Multi-Powerwall Installations81
Revision Log82

Tesla Powerwall 2 - Current Transformer Placement; Voltage Tap and Current Transformer Connections

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