David W Donovan

US Patent:

20050146815, Jul 7, 2005

Filed:

Dec 13, 2004

Appl. No.:

11/010646

Inventors:

David Donovan - Foxboro MA, US
Robert Joyce - Shaker Heights OH, US
Lance Sabados - North Ridgeville OH, US

International Classification:

H02H007/16

US Classification:

361015000

Abstract:

A capacitor switch and control system for high-power transmission/distribution lines comprising a branch circuit comprising a capacitor, a capacitor switch, a capacitor control, and a sensor, where the capacitor control is operative to control the opening of the capacitor switch upon the sensor sensing at least one of an overload condition and a fault condition, and control the closing of the capacitor switch. The invention also includes a method for protecting transmission/distribution line capacitors from faults comprising: (a) monitoring a capacitor branch of a transmission line for a fault condition; and (b) responding to the fault condition by automatically opening a switch on the capacitor branch to provide an open circuit between the transmission line and a branch capacitor, where the switch is repositionable between an open position and a closed position.

US Patent:

20050151659, Jul 14, 2005

Filed:

Dec 13, 2004

Appl. No.:

11/010645

Inventors:

David Donovan - Foxboro MA, US
Robert Joyce - Shaker Heights OH, US
Lance Sabados - North Ridgeville OH, US

International Classification:

G08B021/00

US Classification:

340664000, 324512000

Abstract:

The present invention includes a fault indicator for an electrical transmission line comprising: a fault indicator circuit; and a remote communicator operatively coupled to the fault indicator circuit to transmit condition data to a remote location, where such condition data includes current load data. The invention also includes a method of monitoring and responding to current faults and load variations across an electrical transmission network, the method comprising: installing two fault indicators in electrical communication with an electrical transmission network and including two-way communication capability; generating, by the two fault indicators, condition data specific to a respective location of each of the two fault indicators, where such condition data includes current load data; transmitting the condition data from the two fault indicators to a remote location; receiving, at the remote location, the condition data transmitted from the two fault indicators; and, monitoring and processing the condition data received.