DAVID D SHIPP
Engineers in Murrysville, PA
License number
Pennsylvania PE024855E
Category
Engineers
Type
Professional Engineer
Address
Address
Murrysville, PA 15668
Professional information
High Resistance Grounding Systems For Oil Well Electrical Systems
US Patent:
6188552, Feb 13, 2001
Filed:
Aug 7, 1998
Appl. No.:
9/130568
Inventors:
James R. Jaeschke - Waukesha WI
William E. Berkopec - Wauwatosa WI
David D. Shipp - Murrysville PA
Martin Baier - Cranberry Township PA
William E. Berkopec - Wauwatosa WI
David D. Shipp - Murrysville PA
Martin Baier - Cranberry Township PA
Assignee:
Eaton Corporation - Cleveland OH
International Classification:
H02H 316
US Classification:
361 48
Abstract:
A normally ungrounded power system for a oil well is provided which includes a power transformer above ground and a pump motor below ground. There is provided a signal system which includes a below ground sensor system and an above ground signal conditioning and monitoring unit where the sensor system utilizes the main power lines for carrying the sensor signals. A connectable high resistance grounding scheme is provided to the aforementioned floating system, so that in the event of a arcing ground fault or similar occurrence the system may be immediately grounded, thus compensating for the effects of the arcing ground fault and providing personnel safety and electrical equipment protection. When the high resistance grounding system is not utilized the aforementioned signals from the sensors are easily carried by the power conductors.
Grounding Arrangement For A Powerline System
US Patent:
5930099, Jul 27, 1999
Filed:
Jun 30, 1998
Appl. No.:
9/108034
Inventors:
Andrew James Legro - Pittsburgh PA
Martin Baier - Cranberry PA
David D. Shipp - Murrysville PA
Martin Baier - Cranberry PA
David D. Shipp - Murrysville PA
Assignee:
Siemens Westinghouse Power Corporation - Iselin NJ
International Classification:
H02H 720
US Classification:
361112
Abstract:
A grounding arrangement for a normally ungrounded multi-phase powerline system, which also carries dc information signals. A resistance and a spark gap device are provided in a path between system neutral and a ground. Upon the occurrence of a predetermined fault condition the spark gap device will conduct, and if the voltage developed across the resistance is of a predetermined value, a current bypass path is established around the spark gap device after a predetermined time delay.
Method And Circuit Breaker For Reducing Arc Flash During Maintenance In A Low Voltage Power Circuit
US Patent:
2007009, May 3, 2007
Filed:
Dec 19, 2006
Appl. No.:
11/612688
Inventors:
David Shipp - Murrysville PA, US
Joseph Matsko - Beaver PA, US
James Lagree - Robinson Twp. PA, US
Michael Hodder - Oakville, CA
Ronald Vaill - Irwin PA, US
Joseph Matsko - Beaver PA, US
James Lagree - Robinson Twp. PA, US
Michael Hodder - Oakville, CA
Ronald Vaill - Irwin PA, US
International Classification:
H01H 73/00
US Classification:
361115000
Abstract:
Maintenance trip functions override the normal or specified trip functions of a low voltage circuit breaker to reduce pickup currents and/or time delays to effect faster trips, which reduces arc energy produced by faults during maintenance or testing on a live circuit breaker.
Method And Circuit Breaker For Reducing Arc Flash During Maintenance In A Low Voltage Power Circuit
US Patent:
7203040, Apr 10, 2007
Filed:
Mar 31, 2004
Appl. No.:
10/814596
Inventors:
David D. Shipp - Murrysville PA, US
Joseph J. Matsko - Beaver PA, US
James L. Lagree - Robinson Township PA, US
Michael B. Hodder - Oakville, CA
Ronald E. Vaill - Irwin PA, US
Joseph J. Matsko - Beaver PA, US
James L. Lagree - Robinson Township PA, US
Michael B. Hodder - Oakville, CA
Ronald E. Vaill - Irwin PA, US
Assignee:
Gaton Corporation - Cleveland OH
International Classification:
H02H 3/06
US Classification:
361 5
Abstract:
Maintenance trip functions override the normal or specified trip functions of a low voltage circuit breaker to reduce pickup currents and/or time delays to effect faster trips, which reduces arc energy produced by faults during maintenance or testing on a live circuit breaker.
Power System For Ultraviolet Lighting
US Patent:
2007011, May 17, 2007
Filed:
Nov 14, 2005
Appl. No.:
11/273631
Inventors:
David Shipp - Murrysville PA, US
Richard Pietryka - Columbia MD, US
Daniel Carnovale - Gibsonia PA, US
Kanaiyalal Shah - North Potomac MD, US
Michael Kociolek - Severn MD, US
Richard Pietryka - Columbia MD, US
Daniel Carnovale - Gibsonia PA, US
Kanaiyalal Shah - North Potomac MD, US
Michael Kociolek - Severn MD, US
International Classification:
H01S 3/13
US Classification:
372029021
Abstract:
A power system for ultraviolet lighting includes a first network transformer structured to be powered from a first medium voltage power source and to output a first low voltage output; and a second network transformer structured to be powered from a second medium voltage power source and to output a second low voltage output. A first network protector inputs the first low voltage output of the first network transformer and outputs a third output. A second network protector inputs the second low voltage output of the second network transformer and outputs a fourth output. A spot network is powered from the third output of the first network protector and from the fourth output of the second network protector. A number of sag ride thru devices include an input powered from the spot network and an output structured to power a number of ultraviolet lights.