» Residential Electrical Wiring: Guide to Home Wiring
» Need Electrical Help? Get a Quick Reply! Ask the Electrician
Wiring a 3Phase Air Conditioner
|
By Dave Rongey
Summary:Electrical Wiring Question: On a 3 phase wire system, does it matter what the orientation of the BLACK, RED and BLUE is when hooking up an industrial AC unit? |
How to Wire a 3 Phase AC Unit
Electrical Troubleshooting Question:
On a 3 phase wire system, does it matter what the orientation of the BLACK, RED and BLUE is when hooking up an industrial AC unit?
And if so can it make the compressor run backwards?
Thanks, Chad.
Hi Chad - Great Electrical Repair Question!
3 Phase Electric Motor Wiring and Motor Rotation
When connecting any motor to 3 phase power you could find that the rotation is wrong, and if it is all you have to do is shut off the power and swap any two lines of the 3 phase power and this will change the rotation.
If you need to have the rotation correct the first time then simply get a phase rotation meter that can be used to see what the rotation is before you connect to the equipment.
IMPORTANT: Be very careful when working with 3-phase power.
Be Careful and Be Safe - Never Work on Energized Circuits!
|
|
The Safest Way to Test Electrical Devices and Identify Electric Wires!The Non-Contact Electrical TesterThis is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
The Quickest Way to Check for Faulty Electrical Wiring!The Plug-In Outlet TesterThis is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring. It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.
Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!The Wire Stripper and Wire CutterMy absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires. This handy tool has multiple uses: The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation. The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets.. The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use. |
|