Boots – shoes – and leggings
Patent
1990-06-14
1992-12-15
Lall, Parshotam S.
Boots, shoes, and leggings
361 35, 361113, H02H 308
Patent
active
051723298
ABSTRACT:
A stand alone protective apparatus and method is provided for electrical power devices. Power devices can be damaged due to conditions for example of over current, magnetizing in rush-current, over exitation voltage, saturation, ground fault or internal faults. To protect power devices from the noted conditions, electrical current of the power device is sensed and sampled. Digital processing is used for analyzing the digitally coded sample current and based on one of the conditions that can cause damage, a signal is provided for selectively actuating, by tripping an electric/electronic circuit breaker.
REFERENCES:
patent: 4354216 (1982-10-01), Volta
patent: 4429338 (1984-01-01), Becker et al.
patent: 4513344 (1985-04-01), Usui
patent: 4642564 (1987-02-01), Hurley
patent: 4661877 (1987-04-01), Usui
patent: 4695961 (1987-09-01), Arinobu
patent: 4772978 (1988-09-01), Oura et al.
patent: 4951170 (1990-08-01), Fromm
patent: 5014153 (1991-05-01), Wilkerson
"Design and Testing of Microprocessor-Based Protective Relay for Power Transformers" Nfld, Canada A1B 3X5, Mar. 1990.
"A Stand-Alone Digital Protective Relay for Power Transformers" 89 SM 733-7 PWRD, Nfld, Canada A1B 3X5, Jul. 9, 1989.
Hermanto Ivi
Murty Yalla, V. V. S.
Rahman Azizur M.
Lall Parshotam S.
Zanelli Michael
LandOfFree
Microprocessor-based digital protective relay for power transfor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microprocessor-based digital protective relay for power transfor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microprocessor-based digital protective relay for power transfor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2099098