i am looking for information on the stamford D range alternator,
the unit i am looking at is in malaysia and i am here in the states, so getting hands on look is not possible
the unit is a 15kva single phase, what sets it apart is the
field poles are fixed in the housing, and the rotor is...
ok fella's i am trying to get my head around this, and can't seem to grasp the concept, so i come to you with my hat in hand, hopeing to get some help.
i have a small 3 phase alternator, stator connected in Y configuration
i am measuring 80 volts phase to phase, and 18amps at load
with my...
ok, let me preface my question
1. a three phase alternator, that can be connected in wye or delta
2. i don't care about frequency, the speed will be fixed at ~5000 rpm whether connected as wye or delta
3. the output voltage needs to be the same whether is it connected as wye or delta
4. the...
ok, here is the scoop
a single cylinder diesel test engine, driving a fixed
load of 8kwatts (generator) at a fixed speed of 1800rpm
the exhaust gas leaving the exhaust port is 640 degrees F
the exhaust is going into a prototype heat exchanger
i would like to insert a small catalytic...
we started a new forum focused on micro cogeneration
and a topic came up where a guy took a 10kwatt 1800rpm
genhead and mounted it vertically so he could drive it with
a vertical shaft engine that he had,
the question came up as to whether or not the brgs could hold up any reasonable time...
got into an interesting discussion the other day, and was not able to express myself clearly
the question...
if you have a single phase alternator, 60hz 2 pole 3600rpm
and there are two windings, winding A=120vac, winding B=120vac
how do you refer properly to each winding?
can i use "phase a"...
if i have a 12kva 3 phase alternator that is connected star/wye
and i want to run it as single phase, what is its new capacity?
for some reason i have something like 58% of 12kva, but can't remember where i get that except it is the reciprocal
of the 1.73 delta to star/wye voltage multiplier...
i know well how they work, and all that
what i am looking for is a more current text on
alternator design, something very indepth and that gets
into all the math, materials, and other design considerations.
an engineering text so to speak
i would expect it to sell in the 200+ dollar range,
i...
if we have an alternator, it produces AC
and assume it is 3 phase for the sake of discussion
attached to the alterntor is a bridge rectifier to convert the AC to DC
the power factor of a circuit driving a rectifier is reportedly something less
or often much less than unity
now granted an...
figured i would try you guys on this one
i am working on a prototype alterntor, 500hz
57.6vdc at 75-100amps
i have a yokogawa analog dc amp meter (50mv) with its
500amp shunt, so i can read up to 500amps with decent resolution.
it has worked well with other alternators, but not this one
it...
what i want to try to do, is to take two ups
inverters, tap the first at the logic drive to the FET's
driver, and jumper this logic over to a second inverter
which has had its logic disconnected.
the goal is to be able to then parallel connect the outputs of both inverters for more power
is...
i have no idea where to get an answer to this one, so i come here hoping to get an explanation.
the alternator i am working with has what is called avalanche diodes in the bridge rectifier, they are supposed to go into avalanche at ~29volts or so.
from what i can tell there are some...
i am trying to setup a test cell for a prototype multimode
trigenerator, and was looking for a reasonalby priced means
of reading AC kwatt info.
i picked up a new GE CL200 meter head off of ebay, it is a new one, but appears to be not programmed?
it has a digital screen, and the little lever...
i figured i would try here, thinking perhaps there are those in the design of alternators on the forum :)
i have a project that i am working on, i will first lay out the parameters of what it is i have to work with, and what i am trying to do,, followed by a question.
i am working with a...
i have been researching the answer to how i can
decide on the dimensions of a concrete base for a single cylinder diesel engine.
is there anyone on here that can lead me in the right direction or help me to find source information.
thanks
bob g
