Search

Herbert A Podewils

age ~68

from Sparta, WI

Also known as:
  • Herbert Allan Podewils
Phone and address:
509 Pearl St, Sparta, WI 54656
(608)2693815

Herbert Podewils Phones & Addresses

  • 509 Pearl St, Sparta, WI 54656 • (608)2693815 • (608)2694244 • (608)2694513
  • 229 Avon Rd, Sparta, WI 54656 • (608)2691462
  • Necedah, WI
  • La Crosse, WI
  • 509 Pearl St, Sparta, WI 54656

Work

  • Position:
    Production Occupations

Education

  • Degree:
    Associate degree or higher
Name / Title
Company / Classification
Phones & Addresses
Herbert A. Podewils
Partner
P&H Microcontroller Systems
Prepackaged Software Services
509 Pearl St, Sparta, WI 54656
(608)2694513

Us Patents

  • Inverter And Battery Testing For Uninterruptible Power Systems

    view source
  • US Patent:
    51825180, Jan 26, 1993
  • Filed:
    Apr 11, 1991
  • Appl. No.:
    7/685068
  • Inventors:
    Frederick A. Stich - Wisconsin Rapids WI
    Richard V. Baxter - Neenah WI
    Herbert A. Podewils - Sparta WI
    David L. Layden - New Lisbon WI
  • Assignee:
    Best Power Technology, Inc. - Necedah WI
  • International Classification:
    G01R 3102
    G01R 3136
    H02J 904
  • US Classification:
    324511
  • Abstract:
    The inverter of an uninterruptible power system is tested by turning on switches in the inverter at a selected test phase in each half-cycle of the AC input waveform so that the inverter provides a voltage which opposes the AC input voltage waveform during part of each half-cycle of the waveform. The resulting current drawn from the inverter battery, if any, is measured and its peak may be found. The peak battery current during each half-cycle is compared to maximum allowable peak currents to determine if an inverter failure has occurred. If the peak currents are lower than a maximum acceptable value, the test is repeated on a subsequent AC input waveform at a decreased test phase (a shorter time delay from the zero crossing of each half-cycle of the waveform) until the peak current in the first half-cycle is at a selected value, at which time the peak in the second half-cycle is checked to determine if it is within an acceptable range. If not, an inverter test failure is indicated. Inverter test failure is also indicated if repeated cycles during which the test phase is reduced fail to cause the first peak to reach the proper value and the test phase is finally reduced to a minimum allowable test phase.

Get Report for Herbert A Podewils from Sparta, WI, age ~68
Control profile