LumaSMART
®
User Manual Contents • iv
2.4.2 Transformer Protection and Life Extension with Real-Time Cooling Control ....................... 27
2.4.3 Increased Transformer Loading to the Safe Maximum ......................................................... 28
2.4.4 External Communication and Monitoring Connections ........................................................ 28
2.4.5 Extract Additional MVA Rating Existing Inherently in Every Transformer Design ................. 28
3 Installation of Probes and Accessories ................................................................................................... 29
3.1 Pre-Installation Planning .............................................................................................................. 29
3.2 Installation Philosophy ................................................................................................................. 30
3.2.1 General Guidelines for FOT Installation ................................................................................ 30
3.2.2 FOT Installation Guidelines for Common Designs ................................................................. 31
Three Phase Wye-Wye or Delta-Wye Sub-Transmission Transformers Feeding
Distribution Systems ........................................................................................................ 31
Loaded Tertiary (3rd Winding) ........................................................................................ 31
Buried Tertiary that is Delta Connected .......................................................................... 31
Three Phase Wye-Wye, Delta-Wye, Autotransformer Used for Transmission Step Down
or Step Up and Generator Step-Up Unit (GSU) Transformers ......................................... 31
Single Phase Transformers—Autotransformer and GSU ................................................. 32
Top Oil Measurement ...................................................................................................... 32
3.3 Handling the Fiber ........................................................................................................................ 32
3.3.1 Fiber Optic Cable Handling Precautions ................................................................................ 33
3.4 Installing the Probes ..................................................................................................................... 34
3.4.1 Sensor Installation Guidelines ............................................................................................... 35
Sensor Tip Placement ...................................................................................................... 35
3.4.2 Installing Probe Tip in a Core Form Transformer .................................................................. 35
Radial Spacer Design ....................................................................................................... 36
3.4.3 Installing Probe Tip in a Shell Form Transformer .................................................................. 38
3.4.4 Alternate Probe Tip Installation Methods ............................................................................. 39
3.4.5 Probe Routing inside the Transformer .................................................................................. 40
3.5 Installing the Tank Wall Adapter Plate ......................................................................................... 40
3.6 Installing the Tank Wall Plate Assembly ....................................................................................... 42
4 Installation of the LumaSMART
®
Controller ............................................................................................ 43
4.1 Mounting and Installing the LumaSMART Controller .................................................................... 44
4.1.1 Installing the Wall-Mount LumaSMART Controller ............................................................... 44
4.1.2 Installing the Panel-Mount LumaSMART .............................................................................. 45
4.2 Installing the External Fiber Optic Extension Cable ....................................................................... 46
4.3 Installing the Electrical Wiring ...................................................................................................... 47
4.3.1 Power Wiring ......................................................................................................................... 48
4.3.2 Analog Output Wiring ........................................................................................................... 48
Current Loop Considerations ........................................................................................... 49
4.3.3 Relay Output Wiring .............................................................................................................. 50
System Status Relay ......................................................................................................... 50
4.3.4 Optional Communication Wiring .......................................................................................... 51
4.4 Starting up the Instrument ........................................................................................................... 52
4.5 Testing the Probe Signal Strength ................................................................................................. 52
5 Using the Software ................................................................................................................................ 53
5.1 Home Screen ................................................................................................................................ 53
5.1.1 Viewing All Relays ................................................................................................................. 53
5.1.2 Viewing All Temperatures ..................................................................................................... 54
5.1.3 Viewing Signal Strength......................................................................................................... 54
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