Welcome to the PSC Stray Voltage website. The pdf formated documents
listed below are a compilation of papers and other documents that
relate to the topic of stray voltage in Wisconsin. They contain
a mixture of information, data, charts and graphs that are both
historic and current. Similar information of like nature will be
included in the future.
Also included is the order which evaluates the results of stray
voltage research since the 1989 order in docket 05-EI-106. This
order updates policies and procedures concerning stray voltage
for electric distribution utilities in Wisconsin . It also addresses
the appropriate level of concern, and mitigation factors.
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Report Title |
Description |
(528kb) |
PSC Stray Voltage Data Update: Phase I and Phase II Combined Database Summary (January 26,2006) |
This document presents a synopsis of the data from the PSC
utility stray voltage database that is up-to-date. There are graphs presenting
the distributions of various parameters, the trends over time of various
parameters and the correlations between some of the parameters. This document
will be updated from time to time to keep the graphs current. |
(1375kb) |
Phase II
(May 2005) |
An update of forms to the February 1999 PSC Staff Report: Phase II Stray
Voltage Testing Protocol. |
(194kb) |
History and Interpretation of Electrical Grounding in Wisconsin
(June 2003) |
|
(217kb) |
Stray Voltage and Water for Dairy Cattle
(June 2003) |
|
(573kb) |
Glossary
(September 2002) |
A document compiled by the Rural Electric Power
Services (REPS) staff to help dispel
confusion on the meaning of various electrical terms used in
stray voltage investigations
and other electrical issues. |
(204kb) |
Determining Sources White Paper
(March 1994) |
An early staff paper written to introduce the
concept of source determination. This
important concept determines the correct neutral voltage source
of the animal contact
voltage measured, whether the source is from off-farm or
on-farm sources. The paper
introduces the five main measurement points for a stray voltage
investigation as well as
the K-factor and various testing protocols. Mathematical
formulas are listed to
demonstrate how the source is determined. An appendix reviews
source resistance
determination. |
(84kb) |
05-EI-115 Order
(July 1996) |
This order updates policies and procedures concerning stray
voltage for electric distribution utilities in Wisconsin . It
also addresses the appropriate level of concern, and mitigation
factors. |
(199kb) |
Measurement Protocols - Facts and Misconceptions
(July 2000) |
Low levels of electrical activity in and around our everyday
AC power system are to be expected. This activity may be on metallic structures
or in the ground. This white paper discusses the proper measurement protocols
need in acquiring data in a stray voltage investigation. Low-level measurements
need to be taken with considerable care to ensure that they are accurate,
repeatable and significant. Possible noise and interference sources affecting
these signals are also discussed. |
(108kb) |
PSC Staff Report: The Phase II Stray Voltage Testing
Protocol (February 1999) |
A stray voltage testing protocol is presented that has been
tried and proven for the documentation of comprehensive, multi-source
stray voltage testing. There are suggested forms for data acquisition
as well as a discussion of the methodology of data collection and interpretation.
The Phase II protocol should be considered a minimum test protocol for
a follow-up stray voltage investigation where the amount and all sources
of stray voltage are to be determined. |
(193kb) |
PSC Stray Voltage Data Update: The Latest Statistics
from the PSCW Database (March 2001) |
This document presents a synopsis of the data from the PSC
utility stray voltage database that is up-to-date. There are graphs presenting
the distributions of various parameters, the trends over time of various
parameters and the correlations between some of the parameters. This document
will be updated from time to time to keep the graphs current. |
(108kb) |
PSC Staff Report: Wisconsin's Stray Voltage Experience
- An Update (April 1998) |
An early staff paper written to introduce the range and
impact of various stray voltage parameters as they relate to the stray
voltage issue. Statistical analysis has been included to aid in the interpretation
of the data. The data was collected from the stray voltage analysis team
and the utility databases. A profile of a typical farm with and without
stray voltage above the level of concern is presented. |
(108kb) |
PSC Staff Report: Wisconsin's Stray Voltage Experience
(March 1995) |
An updated staff paper revisiting many of the comparisons
and contrasts of the original Wisconsin Experience staff paper. The larger
data set confirms the validity of the trends and distributions seen in
the earlier work. |
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