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Hi:
To be honest about your question, i'd have to say that you've left me hangin a bit in a void with lack of details.
Not to knock your question, as that I think it needs a response cuz many could benefit from the answer ( assuming you are asking what I think with the conditions I'm assuming you have ). Namely 230 volt 60 cycle single phase supply for power.
If the above is true then you'll see you have a common post terminal, a starter winding post terminal , and a running winding post terminal to connect approriate wires to on your compressor.
The Common terminal wire is usually dark in color such as black and of good size and the run winding terminal is usually red and also of good size. Lastly, the start winding is usually color coded yellow and of smaller size than other two. Basically the names of these terminals are self explanitory. start winding is primarily designed to help compressor initiate start up and run windings is the one that keeps her humming along happily once at speed. The common terminal as the name implies is the common link between the start and run windings and its amperage reading is a combo of those two windings in tandem. therefore it would read higher than other two on a normal bases.
Very little current goes through the start winding therefore no need for bigger wire. It basically is for just inhancement of starting up the motor and is not designed to carry the full time load.
I will not get into the technicals any deeper as that you probably wouldn't want that much detail anyway. So,, ( IF ) your system is typical single phase system then there is your answer. One terminal is the common of the other two and reads both. ( Common,,, or often just marked C ) by mfg. for identification. So it is normal to have one lead read higher than the others.
( 3 Phase ? ),,,,,,,,,
OMG!!!!!!! , now here is a all together different pill to swallow.
If!!!!!! you are operating on 3 phase power at your compressor then all leads should be pretty much the same reading on your amperage meter. If you have a large disparity here then you most certainly have a problem that needs tending to. The phase angle of all three legs must be proper along with their current angles for these motors to work properly and with all 3 legs working in harmony and not against one another.
You could have a phase angle problem for many reasons. I'll not go to deep here other than to say ( make sure all your wires , connections and connectors (inclueding pull in contactor points) are in good and clean condition with snug fit. If all is well here then my advice to you is get a really good and seasoned electrician to help out.
Hope this helps:
Jimiwane
What else can I help you with?
What causes high amps in a air conditioner compressor?
your condensor is clogged up, or your condensor fanmotor is not working, or your compressor struckup due mechanical problem inside of your compressor.
Why does a slow motor create high amps?
Excessive resistance (drag), will cause motor to draw more amps (current flow) to operate.
What causes high amps?
High voltage and low resistance would cause high amps. E = I R or I = E/R. PS E would be electromotive force measured in volts. R would be resistance measured in ohms. I would be current flow measured in amps.
What is the factors that cause compressor faults?
delivery pressure too high (pressostat becomes operative
Is poor compressor can cause high head pressure in an air cooled condenser?
Poor compressor performance should result in low head pressure as the system cools better than the compressor can pump.
When charging liquid should be added to low side or high side?
High side, If you charge liquid on the low side it can cause the valves of the compressor to break.
Where is the high compressor air condition hose?
The high pressure hose is between the compressor and orfice tube
Why should you never front seat the discharge service valve while a compressor is running?
This will cause the head pressure to climb very high and if something doesn't explode or cut out on a high pressure safety, you and the equipment will be damaged. Hopefully compressor will be one with internal or external overload. To summarize DONT DO IT WHILE COMPRESSOR IS RUNNING.
What would cause my 2002 ford escape air conditioner to run cold at low rpms and hot at high rpms?
Compressor problems but sounds the opposite of what the symptoms are usually. Repace compressor and check for leaks. Compressor problems but sounds the opposite of what the symptoms are usually. Repace compressor and check for leaks.
Are volts or amps more dangerous?
Both volts and amps can be dangerous, but in general, it is the current (measured in amps) that poses a greater risk of injury or death. High voltage can cause electric shock, but it is the amount of current flowing through the body that determines the severity of the injury.
What would cause the lever that switches from high to low beams to not click into place?
are you pushing or pulling. one direction flashes the high beams, the other clicks them on.
What do high discharge gas temperature do to the oil in a compressor?
High discharge gas temperature in a compressor can cause the oil to break down more quickly, leading to decreased lubrication and potential damage to compressor components. It can also reduce the oil's ability to remove heat from the system, impacting overall efficiency and performance. Regular monitoring and maintenance is key to ensure proper functioning of the compressor and oil.
