| WARNING!!
Make sure you connect all PMA's to the correct battery polarity. Positive PMA
to positive battery terminal and negative PMA to negative battery terminal. IF
you reverse the connections you will burn out your PMA as the power rushes past
the blocking diodes and melts your coils!!! Tech
notes: Do not attempt to use a pulley smaller
than 60 MM - The belt tension required to keep the belt from slipping on a smaller
pulley will cause excessive pressure on the front bearing shorting its life.
Pulley and Fan Kit (Sold
Seperatly)
Includes a heavy duty cooling fan. Recommended
for all engine, hydro and or belt driven systems. Wind turbines
usually have enough air circulation not to require a fan.
60MM Diameter Pully
w/Fan, uses 1/2" belt #PFK60
- Most Popular
$40.00
In Stock
60MM
Diameter Pully w/Fan, uses 3/8" Belt #PFK6038
$40.00
80
MM Diameter Pully w/Fan, uses 1/2"
belt #PFK80
$40.00
The PMA's, listed above, only include the spacers,
shaft nut and lock washer.
WATER IN YOUR PMA
- Our PMA's can get very hot so they need air ventilation holes
- Rain
water and snow will not harm them
- Most people do not realize that
rain water cannot conduct electricity!
- Only water with minerals in
it can conduct power.
- However PMA's can rust
so please coat them with our Marine Varnish
to insure a long life!
 Build
a powerful battery charger for those cloudy or windless days using our powerful
PMA's
Photo shows two of our PMA units and a customers
8 HP engine. After thousands of hours the PMA's are just NOW getting broke in
and starting their 75 year projected life cycle since there are no brushes to
wear out or worry about. Bearings availble at your local parts store.
(Do
not forget to order a cooling fan kit!)
This
advice is ONLY a guide line and is not a guarantee of cool operation since your
amp load can still be to extreme for proper cooling. Don't pull more amperage
then the PMA can handle. If you burn one up you own it!!! No warranties on burned
up PMA's!!! All sales Final. If you are an amateur and do not understand electrical
windings and how much heat they can take please don't buy one of our PMA's. If
you are experienced watch for over heating and be careful. A LARGE
extra heavy duty cooling fan is Recommended for all engine, hydro and or belt
driven systems. Wind turbines usually have enough air circulation not to require
a fan BUT you must determine this fact by testing and
observation. Specify your series #PFK cooling fan kit option at the
time of your PMA order. Our PMA's are not fail safe!!! If you over load them they
can burn out!!! You as the designer must watch carefully for signs of over heating.
The Mfg. will not warranty any fried PMA's!!!!!!
HEAT
WARNINGS:
IF you are pulling over
500 Watts without a cooling fan your PMA it will over heat! Fan kits are very
important to have on ALL high amp applications!!!!--- Keeping your PMA's cooled,
fused and under reasonable loads is the operators full responsibility. Monitor
your PMA for excessive heating in all experimental machinery! Maximum PMA's operating
temperature is 350 F. for 100% duty cycle. No warrantees on ANY burned out PMA's!
They are sold in good working condition and you have to keep them cool and never
over loaded regarding amperage draw. (PMA's have no over heat protection.
Please use the appropriate fuses to protect your PMA coils)
A
PMA RUNNING SLOW WHILE DRAWING A FULL AMP LOAD IS A DEAD PMA !!!!
Here is a buying guide to help you choose the right PMA and keep it cool.
These figure must then be matched to the power curves. This total calculation
must
be done correctly or you will burn up a PMA or two as part of your learning
curve.
(Expensive lessens for the inexperienced!!!!!!!!)
POWER DRAW CHART
0 to 300 Watts - Required RPM for proper cooling
fan operation = 0 to 300 rpm +
300 to 800 Watts - Required RPM for proper
cooling fan operation = 1400 rpm +
800 to 1500 Watts - Required RPM for proper
cooling fan operation = 2500 rpm +
1500 to 2500 Watts - Required RPM for
proper cooling fan operation = 3700 rpm +
2500 to 5000 Watts - Required RPM
for proper cooling fan operation = 5500 rpm +
5000 to 7000 Watts - Required
RPM for proper cooling fan operation = 8500 rpm +
7000 to 10,000 Watts -
Required RPM for proper cooling fan operation = 11,000 rpm +
10,000 to 14,000
Watts - Required RPM for proper cooling fan operation = 18,000 rpm +
14,000
to 16,000 Watts - Required RPM for proper cooling fan operation = 25,000 rpm +
Following these figure are ONLY a guide and does not a guarantee
cool operation since your amp load can still be to extreme. Don't pull more amperage
then they can handle. If you burn one up you own it!!! No warranties on burned
up PMA's!!! All sales Final. If you are an amateur and do not understand electrical
windings and how much heat they can take please don't buy one of our PMA's. If
you are experienced watch for over heating and be careful.
COSTAL
& INLAND REGIONS:
If
you plan to put your PMA in a salt water environment you
MUST coat all metal surfaces to prevent the disaster of corrosion! Create
a salt water and corrosion proof PMA with our Special Green
Marine Varnish (Also comes in Clear)
5 to 8 HP engines are the most popular choice for people trying to achieve
maximum results from their PMA's when utilizing internal combustion engines. A
5 to 6" engine pulley works good on 4 to 10 horse power engines and a 6 to
9" drive pulley has reportedly worked good for 10 and 18 horse power engines.
WIND TURBINE DESIGNERS HINT
When picking out a PMA the
better choice is the higher voltage model. You don't want to be under powered.
You MUST always exceed the batteries voltage to produce ANY net gain
DIVERSION LOAD CONTROLER
All of our PMA's produce unregulated D.C. voltage
and may require a Diversion Load Controller
and a Diversion Load for smaller batteries
banks or non-grid connected applications.
NOTICE FOR ANY OF
YOU A.E. NOVICES OUT THERE:
If these voltages seem high just remember
that standard automotive alternators are usually putting out 40 to 50 volts into
the 12 volt battery in your car. That's right! It won't harm the battery AS long
as the battery is not FULL it can take high levels of charging voltage no problem.
A lead acid battery will easily buffer high input voltages.
(You will
never be able to see voltages this high because the battery pulls all power inputs
DOWN to its own voltage level AND that's why you NEVER pull off the battery cables
when an engine is running because your fuses, dash board lights and regulator
will blow up !!!!!!! (Especially if you rev the engine! ,,,, NO battery---- NO
buffer!!)
Have you every seen a battery charger that had a BOOST/START
mode??? How could this work since you can't force more amperage into an electrical
circuit. Amperage has to be "Demanded" by an electrical device so the
BOOST/START switch on your battery charge is actually increasing the VOLTAGE to
about 18 to 20 volts thereby allowing you to extract more amperage. Relax, it
is normal to charge batteries with much more power than their output ratings.
Only start worrying when the battery is fully charged and THEN any additional
power must stop coming into it or must be dumped to keep the battery cool and
from producing explosive hydrogen gas.
To make a long story short
a 12 volt battery that is being charged with a wind turbine putting out 50 volts
will still only read "12 volts" to a volt meter proving that the high
voltage power is easily being swallowed up by the big lead plates of your battery.
A battery is basically a BIG capacitor in electronic terms. Once
your batteries are fully charged you must THEN stop putting any additional power
into it!
All of our PMA's produce unregulated D.C. voltage and
may require a Diversion Load Controller
and Diversions Load (water heater element,
air heater) for smaller batteries banks, or for non-grid connected applications. (PMA's
have no over heat protection. Please use the appropriate fuses to protect your
PMA coils)
TECH NOTES:
Taking apart a PMA the right way.
1) Remove the 4 housing bolts and pull the front housing
off OVER the shaft. Never pull the rear housing off first!!!!
If it is jammed
or rusted use some WD-40 on the shaft and alternately tap the mounting wings with
a hammer while applying pressure to the shaft with your thumb so that the stator
and it's delicate wiring harness is kept in place.
2) Now
grab the exposed rotor core shaft and pull it out WHILE holding down the stator
ring with your index
finger and thumb. This will take LOTS of strength!!!!!
If you fail to hold the stator in place the core and stator
will be extracted
together and the wires will be torn off! This is a tricky maneuver and usually
takes some experience and lots of muscle!!!!!!!
3) Once
the rotor core has been successfully extracted the rectifier connections are exposed
and you may unfasten the three wire nuts to safely remove the stator coil. Warranties
will be void on any PMA that is opened by a customer. Any PMA experimentation
and examination is at your own risk. WARNING;
High voltage PMA's and battery banks can cause lethal electric shock 
WATER IN YOUR PMA
Our PMA's can
get very hot so they need air ventilation holes.
Rain water and snow will
not harm them.
Most people do not realize that rain water cannot conduct
electricity!
Only water with minerals in it can conduct power.
However
PMA's can rust so please coat them with Varnish to insure a long life!
The "Oops Program"
- "Oop's, I must
have ordered the wrong PMA for this project!"
If you
choose the wrong PMA we will rebuild it one time ONLY with a coil of higher or
lower amperage or voltage to help your idea or invention get dialed into the proper
power zone. You must do this within 30 days of purchase and the coil you trade
in must be in working condition.
There is a $99.00 repair, installation and
testing fee in the "Oops program"
(Much cheaper than buying a new
PMA)
The purchaser is responsible for ALL shipping fees. If you are the lower
48 states the $99.00 fee covers return shipping. Email
us for more info on the "Oops program". We are here to serve your
needs and picking the right PMA the first time can be very hard with so many unknown
variables in any power equation.
| 
You
asked us for a PMA that would put-out power at low RPM levels. 
We
sell only highly efficient - long lasting true permanent magnet alternators!
