Tony H Lee

Address:

25 Dry Brk Trl, Henderson, NV 89052

VIN:

4T1BK46KX7U532163

Make:

TOYO

Model:

CAMR

Year:

2007

US Patent:

20220239089, Jul 28, 2022

Filed:

Nov 30, 2021

Appl. No.:

17/456936

Inventors:

- Pullman WA, US
Tony J. Lee - Henderson NV, US
Bryon S. Bridges - Liberty Lake WA, US
Derek Lautenschlager - Palouse WA, US
Guillermo Ramirez Conejo - Pullman WA, US
Stephanie L. McDaid - Kennewick WA, US
Nishchal Sharma - Pullman WA, US
Bharat Nalla - Pullman WA, US
Vinodev E. Rajasekaran - Pullman WA, US

Assignee:

Schweitzer Engineering Laboratories, Inc. - Pullman WA

International Classification:

H02H 1/00
H02H 3/05
H02H 3/16
H02J 13/00

Abstract:

Disclosed herein is a system for time aligning electric power system measurements at an intelligent electronic device (IED) using samples and sample time offset from merging units. The merging units do not require access to a common time signal. The IED does not require storage of a communication latency with the merging units. The sample time offset corresponds to a latency between obtaining the sample and receipt of the sample at the IED. The IED aligns samples from various merging units using sample time offset values communicated from the merging units to the IED. The IED performs monitoring and protection functions using the time aligned samples.

US Patent:

20210109156, Apr 15, 2021

Filed:

Mar 31, 2020

Appl. No.:

16/835450

Inventors:

- Pullman WA, US
David E. Whitehead - Pullman WA, US
Tony J. Lee - Henderson NV, US
David J. Casebolt - Moscow ID, US
Krishnanjan Gubba Ravikumar - Pullman WA, US
David Schmidt - Athens GA, US
Austin Edward Wade - Moscow ID, US

Assignee:

Schweitzer Engineering Laboratories, Inc. - Pullman WA

International Classification:

G01R 31/327
H01H 47/00
H02H 1/00

Abstract:

Systems and methods for testing a protection relay, such as a primary bus protection relay, may include a testing device for providing current signals imitating current on both sides of a bus to the primary bus protection relay. The signals may be provided using signals corresponding with a signal format from merging units or other monitoring devices. The testing device may be configured to receive communications from the primary bus protection relay for evaluation of the operation of the primary bus protection relay.

US Patent:

20210109164, Apr 15, 2021

Filed:

Feb 20, 2020

Appl. No.:

16/796563

Inventors:

- Pullman WA, US
Tony J. Lee - Henderson NV, US
David E. Whitehead - Pullman WA, US
David J. Casebolt - Moscow ID, US
Krishnanjan Gubba Ravikumar - Pullman WA, US
Austin Edward Wade - Moscow ID, US
Lisa Gayle Nelms - Colfax WA, US

Assignee:

Schweitzer Engineering Laboratories, Inc. - Pullman WA

International Classification:

G01R 31/62
H02H 7/04
H01F 27/40
G01R 31/327

Abstract:

The present disclosure pertains to devices, systems, and methods for monitoring an electric power system. In one embodiment, a system may detect a failure in an electric power system. The system may include a communication interface to receive a first indication related to a condition in the electric power system, and a second indication related to the condition. The system may also include a test subsystem to compare the first indication to the second indication and to determine a discrepancy between the first indication and the second indication. A diagnostic subsystem may identify the failure based on the discrepancy between the first indication and the second indication. An alert subsystem may generate an alert based on the failure.

US Patent:

20210111555, Apr 15, 2021

Filed:

Sep 28, 2020

Appl. No.:

17/034142

Inventors:

- Pullman WA, US
David E. Whitehead - Pullman WA, US
Tony J. Lee - Henderson NV, US
Krishnanjan Gubba Ravikumar - Pullman WA, US

Assignee:

Schweitzer Engineering Laboratories, Inc. - Pullman WA

International Classification:

H02H 7/22
H02H 1/00
H02H 3/027

Abstract:

Primary protection relays and an integrator disclosed for providing primary protection and secondary applications for an electric power delivery system. The primary protection relays obtain signals from, and provide primary protection operations for the power system, and may operate independently from the integrator. An integrator receives signals and status communications from the primary protection relays to perform secondary applications for the electric power delivery system. The secondary applications may include backup protection, system protection, interconnected protection, and automation functions.

US Patent:

20210111586, Apr 15, 2021

Filed:

Sep 28, 2020

Appl. No.:

17/034128

Inventors:

- Pullman WA, US
Daqing Hou - Des Moines WA, US
David E. Whitehead - Pullman WA, US
Tony J. Lee - Henderson NV, US
Krishnanjan Gubba Ravikumar - Pullman WA, US

Assignee:

Schweitzer Engineering Laboratories, Inc. - Pullman WA

International Classification:

H02J 13/00

Abstract:

Systems and methods including improving availability of protection of an electric power delivery system even upon unavailability of power system signals. Such protection relays may provide protection using signals from the power system and provide the signals to an integrator or another device. Upon unavailability of power system signals to a protection relay, the integrator sends substitute power system signals may be provided to the protection relay. The protection relay may continue to provide protection using the substitute power system signals.

US Patent:

20210014196, Jan 14, 2021

Filed:

Mar 27, 2020

Appl. No.:

16/832816

Inventors:

- Pullman WA, US
Krishnanjan Gubba Ravikumar - Pullman WA, US
Austin Edward Wade - Moscow ID, US
Tony J. Lee - Henderson NV, US
David J. Casebolt - Moscow ID, US
David E. Whitehead - Pullman WA, US

Assignee:

Schweitzer Engineering Laboratories, Inc. - Pullman WA

International Classification:

H04L 29/06
H02H 7/22

Abstract:

Systems and methods may maintain protection of electric power delivery systems in the event of an attack on protection and/or control features of the power system. Primary protective functions may be physically isolated from other functions in primary protection relays. Integrators may facilitate non-primary protection functions and disconnect all communication with primary protection relays in the event of an attack. Primary protection relays maintain protection functions even during the attack or unavailability of the integrators.

US Patent:

20200182956, Jun 11, 2020

Filed:

Feb 17, 2020

Appl. No.:

16/792814

Inventors:

- Pullman WA, US
Tony J. Lee - Henderson NV, US
Zachary King Sheffield - Pullman WA, US
Tracey G. Windley - Moscow ID, US

Assignee:

Schweitzer Engineering Laboratories, Inc. - Pullman WA

International Classification:

G01R 35/00
G01R 31/08
G01R 31/327
G01R 31/11

Abstract:

A testing apparatus for imposing a traveling wave signal on an electric system signal for testing a fault detector is disclosed herein. The fault detector may be configured to simulate a fault at a particular location by controlling the timing of the traveling wave signal. The testing apparatus may be configured to impose multiple traveling wave signals to test the accuracy of the fault location determined by the fault detector. The testing apparatus may be configured to determine the calculation accuracy of the fault detector. The testing apparatus may impose a traveling wave signal on a signal simulating an electrical signal on an electric power delivery system. The testing apparatus may be used to test capabilities of a fault detector of detecting a fault using traveling waves or incremental quantities.