Inventor
CHOWDHURY RITWIK
US18 patents
Patents
18 patentsUS10819261B1Oct 27, 2020
Security improvements for electric power generator protection
SCHWEITZER ENGINEERING LAB INC4 citations72
US10931097B2Feb 23, 2021
Generator stator ground protection using third harmonic
SCHWEITZER ENGINEERING LAB INC3 citations71
US10797632B2Oct 6, 2020
Sensitive directional element for generator protection
SCHWEITZER ENGINEERING LAB INC2 citations71
US10578653B2Mar 3, 2020
Overexcitation protection for electric power system equipment
SCHWEITZER ENGINEERING LAB INC2 citations71
US10333291B2Jun 25, 2019
Multiple generator ground fault detection
SCHWEITZER ENGINEERING LAB INC6 citations71
US11946966B1Apr 2, 2024
Selective stator ground fault protection using positive-sequence voltage reference
SCHWEITZER ENGINEERING LAB INC2 citations67
US11177645B2Nov 16, 2021
Systems and methods for improving restricted earth fault protection
SCHWEITZER ENGINEERING LAB INC2 citations63
US12316112B2May 27, 2025
Breaker control units and related systems and methods
SCHWEITZER ENGINEERING LAB INC0 citations62
US11996688B2May 28, 2024
Method of controlled switching for transformers using transformer residual flux
SCHWEITZER ENGINEERING LAB INC0 citations62
US11233389B1Jan 25, 2022
Controlled three-pole close for transformers
SCHWEITZER ENGINEERING LAB INC0 citations62
US11631972B2Apr 18, 2023
Accurate modeling of equipment overexcitation damage curves
SCHWEITZER ENGINEERING LAB INC1 citations61
US11316455B2Apr 26, 2022
Generator rotor turn-to-turn fault detection using fractional harmonics
SCHWEITZER ENGINEERING LAB INC1 citations60
US11575253B2Feb 7, 2023
Controlled three-pole close for transmission lines
SCHWEITZER ENGINEERING LAB INC0 citations56
US11476655B2Oct 18, 2022
Trapped charge estimation
SCHWEITZER ENGINEERING LAB INC0 citations56
US12249948B2Mar 11, 2025
Split-phase protection of generators
SCHWEITZER ENGINEERING LAB INC0 citations50
US12176716B2Dec 24, 2024
Line reactor protection security using local frequency measurement
SCHWEITZER ENGINEERING LAB INC0 citations50
US11411390B2Aug 9, 2022
Secure and dependable restricted earth fault protection for electric power generators and transformers
SCHWEITZER ENGINEERING LAB INC0 citations50
US11735908B2Aug 22, 2023
Dependable open-phase detection in electric power delivery systems with inverter-based resources
SCHWEITZER ENGINEERING LAB INC0 citations38