Daniel J. Carnovale 2026-11-05
Daniel J. Carnovale is an electrical engineer associated with investigating and demonstrating the behavior of electric power systems. His coauthored Capacitor Application Issues by Thomas M. Blooming and Daniel J. Carnovale identifies his Eaton affiliation; its author biography describes a demonstration and test facility for reproducing electrical supply problems and evaluating their mitigation.[ref]
One important distinction in power factor correction is between reduced source electric current and reduced useful-load active power. For an original idealized example, a load takes and at RMS. Before correction,
Canceling the fundamental reactive power makes source electric current , but leaves the stipulated load's unchanged. With a fixed upstream electrical resistance of , conductor Joule heating falls from to . The reduction is , rather than 20% of the load's active demand.
A proposed demonstration measures load active power, source RMS electric current and upstream conductor loss separately while connecting the correction branch. It makes the changed and unchanged quantities visible. The same input-output discipline applies when comparing a device's apparent electrical savings with useful service delivered. The numerical example above is an original fixed-boundary calculation, not a measurement attributed to Carnovale.
His paper with Thomas M. Blooming places such calculations within practical capacitor application. Choosing a nominal correction alone does not describe how variable load and the existing network affect operation. The distinction motivates recording terminal waveforms and operating conditions along with a single power factor number.
Thomas M. Blooming 2026-11-05
A useful technical question is why improving fundamental displacement power factor can alter the response to other harmonic components. In an original lossless parallel LC circuit, the admittance is
Its reactive terms cancel at the resonant frequency
For stipulated and , . Doubling moves it to about . A correction component chosen for one operating frequency has therefore changed the network at other frequencies as well.
In this ideal parallel model the impedance diverges at resonance; a finite imposed harmonic electric current would demand an unbounded electric potential difference, signaling the ideal model's limit. Real losses and other network elements bound and shift the response. A proposed bench test uses a small known drive and sweeps frequency with and without the extra capacitor, recording both current and potential difference. It tests the frequency-dependent circuit rather than inferring behavior from the fundamental cosine alone.
The calculation is an original illustration of the network question, not an experimental result attributed to Blooming. His joint paper with Daniel J. Carnovale supplies the application context: component choice and operating conditions must be considered together. A correction that looks favorable in a single-frequency power factor calculation is not, by that fact alone, characterized across the full waveform.