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Alternators, and generators, have what is called residual magnetism.=C2=A0 =
The steel laminates in the field (the rotor in the case of an alternator) w=
ill become magnetized.=C2=A0 As the rotor spins the rotating magnets will g=
enerate current in the stator coils.=C2=A0 This is important since power fo=
r the exciter field comes from the alternator output.=C2=A0 Basically it li=
fts itself up by the bootstraps.=C2=A0
The amount of residual magnetic field=C2=A0 strength is small so it takes m=
ore speed to achieve enough voltage to start exciting the field will take m=
ore speed than that required during normal operation.=C2=A0 My TR6 alternat=
or has a charge indicator light connected between the exciter power and the=
battery.=C2=A0 =C2=A0This provides a small amount of current to the excite=
r to help get things going more quickly.=C2=A0 The TR6 alternator will reli=
ably start charging at or below 1,000 RPM with the light installed but if I=
reomove the light it sometimes needs 1,800 RPM.=C2=A0=C2=A0
BTW, alternators are not direction sensitive since the rectification is acc=
omplished wit semiconductor diodes.
It appears your new regulator is of a newer generation that actvates the IG=
N light directly.=C2=A0
Oh, and three very good reasons for selecting that alternator.=C2=A0
Dave=20
=20
On Thu, Aug 12, 2021 at 17:02, Jack Brooks<JIBrooks@live.com> wrote: __=
_____________________________________________
Shop-talk@autox.team.net
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/arch=
ive
ssey@cs.com
=20
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Alternators, and generators, have what is called residual magnetism. =
The steel laminates in the field (the rotor in the case of an alternator) w=
ill become magnetized. As the rotor spins the rotating magnets will g=
enerate current in the stator coils. This is important since power fo=
r the exciter field comes from the alternator output. Basically it li=
fts itself up by the bootstraps. <div id=3D"yMail_cursorElementTracker=
_1628859112364"><br></div><div id=3D"yMail_cursorElementTracker_16288591135=
16">The amount of residual magnetic field strength is small so it tak=
es more speed to achieve enough voltage to start exciting the field will ta=
ke more speed than that required during normal operation. My TR6 alte=
rnator has a charge indicator light connected between the exciter power and=
the battery. This provides a small amount of current to the ex=
citer to help get things going more quickly. The TR6 alternator will =
reliably start charging at or below 1,000 RPM with the light installed but =
if I reomove the light it sometimes needs 1,800 RPM. </div><div =
id=3D"yMail_cursorElementTracker_1628859519033"><br></div><div id=3D"yMail_=
cursorElementTracker_1628859520181">BTW, alternators are not direction sens=
itive since the rectification is accomplished wit semiconductor diodes.</di=
v><div id=3D"yMail_cursorElementTracker_1628859598199"><br></div><div id=3D=
"yMail_cursorElementTracker_1628859598626">It appears your new regulator is=
of a newer generation that actvates the IGN light directly. </div><di=
v id=3D"yMail_cursorElementTracker_1628859670953"><br></div><div id=3D"yMai=
l_cursorElementTracker_1628859671518">Oh, and three very good reasons for s=
electing that alternator. <br><br><div id=3D"ymail_android_signature">=
Dave</div> <br> <blockquote style=3D"margin: 0 0 20px 0;"> <div style=3D"fo=
nt-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Thu, Aug 12, 2021 at=
17:02, Jack Brooks</div><div><JIBrooks@live.com> wrote:</div> </div>=
<div style=3D"padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px=
solid #6D00F6;"> _______________________________________________<br clear=
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br clear=3D"none">Suggested annual donation $12.96<br clear=3D"none">=
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