S#1 Stator Testing & Editing/ Loading/ Polaris 4012941&4016868 Discussion Thread
April 2020 I will be editing anything to do with series regulators and Polaris installs .If someone has a question post in this thread or related threads of Technical.
S#1 This post is copied from;https://www.kawasakiversys.com/foru...tator-testing-device-load-ratings-2015-a.html
Stator testing
Stator Testing / Loading/ Polaris 4012941&4016868 Discussion Thread
This post is copied from;https://www.kawasakiversys.com/forum...gs-2015-a.html
More of a simple, very quick and extremely accurate test, to prove if any stator damage has occurred.
FYI for those not familiar with A-B;B-C;C-A , you randomly call each pin a number or letter, I use a clockwise reference, start at a distinct pin and call it A or #1, if using numbers then it is 1-2;2-3;3-1
#1 So what you need is some fine jewelers screwdrivers, straight pins or something that can be inserted in your socket of the stator plug, also a meter that reads volts AC, preferably with alligator clips on the probes . This is the 3 wires coming from the stator, to a plug close to your throttle position sensor. This connector has a latch locking it together, to release you need to squeeze down on the latch and wiggle / pull at the same time.
#2 Basically, use your idle adjustment screw and get the RPM around 2000 RPM, this is warmed up RPM, do not try holding the throttle and measuring this.So depending how fast you are, you may need to hook up your battery tender. We are depending on a fixed RPM ( 2000 aprox.)that should give identical results on all three phases.
#3 When apart you are measuring the output from the stator under no load conditions, for your purpose, make a drawing and identify the 3 female crimps as #1,#2,#3, as long as you know what you are calling when referencing your measurements. So at 2000 RPM measure 1 to 2; 2 to 3; 3 to 1******that is your 3 readings, they should be around 24 to 28 VAC at 2000 RPM, the readings should be 0.5 VAC within each other, that is 1==28.0; 2==27.5; 3 ==28.3----
-if any readings are like the following ****1==24; 2==16; 3==22, you have shorted turns.
There is a third test that can also be done, measure 1,2,3 to ground, record these three readings, should be around 17 volts AC
If you have any questions ask me. Very little about induction I don't know, that has been my specialty for over 40 years.
The difference is that, at 25% flux density,( 2000 RPM ) a small turn to turn short or turn to line short will have a large impact on the AC output. At 100% output, the imbalance between phases will be less noticeable.
**********************
I should add the reference to ground is just that, all the phase voltages are common with other bikes I have tested , the 2000 RPM is within 1 volt, what my 2000 RPM may be over or under your 2000 RPM. Looking for 26 VAC minimum at 2000 RPM within 1 volt phase to phase i.e. A-B 25.0 VAC ;B-C 26.0 VAC; C-A 25.5 VAC, if you get 18VAC; 14 VAC; 24 VAC or some similar combination such as 21 VAC;26 VAC 25 VAC, your stator is failing, in this last example , the 21 VAC would indicate shorted turns.
April 2020 I will be editing anything to do with series regulators and Polaris installs .If someone has a question post in this thread or related threads of Technical.
S#1 This post is copied from;https://www.kawasakiversys.com/foru...tator-testing-device-load-ratings-2015-a.html
Stator testing
Stator Testing / Loading/ Polaris 4012941&4016868 Discussion Thread
This post is copied from;https://www.kawasakiversys.com/forum...gs-2015-a.html
More of a simple, very quick and extremely accurate test, to prove if any stator damage has occurred.
FYI for those not familiar with A-B;B-C;C-A , you randomly call each pin a number or letter, I use a clockwise reference, start at a distinct pin and call it A or #1, if using numbers then it is 1-2;2-3;3-1
#1 So what you need is some fine jewelers screwdrivers, straight pins or something that can be inserted in your socket of the stator plug, also a meter that reads volts AC, preferably with alligator clips on the probes . This is the 3 wires coming from the stator, to a plug close to your throttle position sensor. This connector has a latch locking it together, to release you need to squeeze down on the latch and wiggle / pull at the same time.
#2 Basically, use your idle adjustment screw and get the RPM around 2000 RPM, this is warmed up RPM, do not try holding the throttle and measuring this.So depending how fast you are, you may need to hook up your battery tender. We are depending on a fixed RPM ( 2000 aprox.)that should give identical results on all three phases.
#3 When apart you are measuring the output from the stator under no load conditions, for your purpose, make a drawing and identify the 3 female crimps as #1,#2,#3, as long as you know what you are calling when referencing your measurements. So at 2000 RPM measure 1 to 2; 2 to 3; 3 to 1******that is your 3 readings, they should be around 24 to 28 VAC at 2000 RPM, the readings should be 0.5 VAC within each other, that is 1==28.0; 2==27.5; 3 ==28.3----
-if any readings are like the following ****1==24; 2==16; 3==22, you have shorted turns.
There is a third test that can also be done, measure 1,2,3 to ground, record these three readings, should be around 17 volts AC
If you have any questions ask me. Very little about induction I don't know, that has been my specialty for over 40 years.
The difference is that, at 25% flux density,( 2000 RPM ) a small turn to turn short or turn to line short will have a large impact on the AC output. At 100% output, the imbalance between phases will be less noticeable.
**********************
I should add the reference to ground is just that, all the phase voltages are common with other bikes I have tested , the 2000 RPM is within 1 volt, what my 2000 RPM may be over or under your 2000 RPM. Looking for 26 VAC minimum at 2000 RPM within 1 volt phase to phase i.e. A-B 25.0 VAC ;B-C 26.0 VAC; C-A 25.5 VAC, if you get 18VAC; 14 VAC; 24 VAC or some similar combination such as 21 VAC;26 VAC 25 VAC, your stator is failing, in this last example , the 21 VAC would indicate shorted turns.