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Page 1: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Inverters

Page 2: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Inverter Functions Change DC to AC Increases or decreases

voltage from array voltage to: 120 Volts 240 Volts 208 Volts

Regulate Frequency 50 HZ 60 HZ

Feed Electricity back to grid

Battery Charging

Page 3: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 4: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Input Ranges

Page 5: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Inverter Wave Forms

Square wave

Modified Square Wave

Sine Wave

Page 6: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Types

Stand Alone Inverters Battery based

Direct Utility Intertie No Battery

MultiFunction Battery charging grid tie

Page 7: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Stand Alone Inverters

Page 8: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Stand Alone

Page 9: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Stand Alone Inverters

Considerations Maximum load Maximum surge AC output voltage Input battery

voltage 100 watts to 60 KW Pure sine &

modified sine wave available

High Surge

Page 10: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Modified Square or Modified Sine Wave Stand Alone

Inverters Types

Xantrex TR Series Samlex

Least expensive - $.29 - .66/watt Some electronic devices may buzz Clocks don’t run accurately Can’t charge battery packs, run laser printers, copiers, light

dimmers, variable speed tools, Silicon Controlled rectifiers High Surge High Efficiency

Page 11: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Xantrex TR Series Inverters

12 & 24 DC Volt Input

120 volt AC 1500 – 3600 watts Modified sine wave Battery charging

capability $.39 - .58/watt

Page 12: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Sine wave Stand Alone Inverters

Page 13: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Magnum

Makes sine wave & modified sine output inverters

600 - 4400 watts 12 – 48 volt models 120 & 240 models $.50 - $1.19/watt

Page 14: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 15: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Over Current Protection

Page 16: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Sizing Overcurrent Protection

Divide rated output by lowest voltage that inverter will operate at to get maximum AC amps

Divide maximum AC amps by inverter efficiency to get maximum DC amps

Multiply maximum DC amps by 1.25 to avoid exposing conductor or overcurrent protection to more than 80% of its rated ampacity

Page 17: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 18: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Example of Conductor & Circuit Breaker Sizing

2500 watts / 21 V = 119 amps AC 119 AC amps / .93 = 128 amps DC 128 x 1.25 = 160 amps (for

continuous duty) Conductor must have ampacity of

160 amps or more. Circuit Breaker must also have amp

rating of at least 160 amps also, but less than or equal to the ampacity of conductor used

Page 19: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 20: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 21: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Direct Grid Tie Inverters

Page 22: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Direct Utility Tied Inverters

Page 23: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Direct Grid Tie Inverter

Page 24: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Direct Grid Tie

Page 25: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Grid Tie PV System

Page 26: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 27: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 28: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 29: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 30: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Balance of System: Grid Tie

Page 31: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 32: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Sunny Boy Inverter

Page 33: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Sunny Boy with DC Disconnect

Page 34: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 35: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 36: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 37: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Enphase Microinverters

http://www.youtube.com/watch?v=Fzj2a-9M4qo

http://www.youtube.com/watch?v=RC3mNUhcx6o

http://www.youtube.com/watch?v=Fzj2a-9M4qo

http://www.youtube.com/watch?v=RC3mNUhcx6o

Page 38: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 39: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Dual Function Inverters

Page 40: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Multi-Function Inverters

Page 41: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

With Batteries & Grid

Page 42: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Xantrex XW Battery Based Inverter

Page 43: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

http://www.youtube.com/watch?v=I91mHLu1Guw

http://www.youtube.com/watch?v=I91mHLu1Guw

http://www.youtube.com/watch?v=I91mHLu1Guw

Page 44: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Xantrex XW Battery Based Inverter

Page 45: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Outback Multifunction

Page 46: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Multi – Function Inverters

Page 47: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 48: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Page 49: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

Multi Function Inverters

Page 50: Inverters. Inverter Functions Change DC to AC Change DC to AC Increases or decreases voltage from array voltage to: Increases or decreases voltage from

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