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Recent content by brutus1955

  1. brutus1955

    seeking stamford D range info

    Thank you Master Waross that is explanation is a big help in filling in the missing pieces to the puzzle after much more digging i find this sort of control probably lost favor as electronic AVR's got better, cheaper and more dependable. i can also see how the market for the older method...
  2. brutus1955

    seeking stamford D range info

    dArsonval that was the only reference i could find too, to the D range stamford. one elusive bugger it is turned out to be. bob g www.microcogen.info
  3. brutus1955

    seeking stamford D range info

    guys, i am looking for any info at all on this series of alternator or alternatively and reference material on what is known as "revolving armature ac generators" also any info on transformer controlled alternators, i think they refer to them as "current compounding transformer" field control...
  4. brutus1955

    seeking stamford D range info

    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...
  5. brutus1955

    about alternator amp outage and fuel consumption

    two amps will be unmeasurable in terms of increased fuel consumption, outside of anywhere but the most accurate test cells on the planet in the real world you will never notice the difference bob g www.microcogen.info
  6. brutus1955

    Test Cell Exhaust system for large v engine

    go to a large resterant supply store and have a look at their heavy duty stainless mixing bowls they make them from small to huge, they all have a flat bottom, and they nest together tightly one could cut the bottoms out and have stainless pipe tig welded in and you have your ball swivel...
  7. brutus1955

    measureing amperage in a 3phase circuit

    thanks again, one last question if i might i am not convinced that my ampclamp meter is capable of reading amperage even approximately (+/- 5% would be nice) at 500hz. it appears to be able to read, and reads repeatedly with the same numbers, but i am not at all convinced i have 18amps on a...
  8. brutus1955

    measureing amperage in a 3phase circuit

    thanks one and all, you guys are the best now for another twist, i was mistaken and forgot to consider the three single phase transformers i am supplying with this power source, i have them setup as delta on primary, and Y on secondary the secondaries are rectified for battery charging. so...
  9. brutus1955

    measureing amperage in a 3phase circuit

    let me add to this the following i have no access to the neutral connection of the Y so i am measuring the voltage across to legs, and it is a balanced load. i am measuring the amperage with a clamp on meter on one leg and getting an 18amp reading at full load, the pf is unity i assume that...
  10. brutus1955

    measureing amperage in a 3phase circuit

    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...
  11. brutus1955

    generator connection wye or delta vs efficiency ?

    thank you Master Bill i think i understand what you presented, at least enough so that i can maybe more closely define my question should there be one. your direction is much appreciated bob g www.microcogen.info
  12. brutus1955

    generator connection wye or delta vs efficiency ?

    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...
  13. brutus1955

    Wiped Rod Bearings

    if you resize the big end, be sure to pay particular attention to the detail at the parting line. there is generally a ramp cut into the upper half which directs the oil so it can effectively form the hydraulic wedge as the crankpin turns if your resizing removes this ramp, you may not get...
  14. brutus1955

    small diesel engine cat con ??

    thanks one and all for you input, i have done a bit more reading and now understand about enough to be dangerous but hopefully enough to do what i am wanting to do. because the engine runs at steady state, under full load i can maintain temperatures without issue, and due to other control...
  15. brutus1955

    small diesel engine cat con ??

    thats full load at 640 as measured on the pipe about one inch out from the port with a laser temp gun,, so probably the exhaust flow itself is a bit higher? i am a bit concerned with particulate clogging as well, and am thinking of secondary injection to do a periodic burn off. are the cats...

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