Patents Assigned to VIRGINIA TRANSFORMER CORPORATION
-
Patent number: 9978500Abstract: A yoke clamp bracket for a transformer core. The yoke clamp bracket may comprise a body portion having a plurality of center holes near each end, a plurality of slots for coil barriers, a plurality of slots for wiring, and attachment points for side brackets and vertical supports. The yoke clamp bracket may be mounted to a transformer core by connectors extending through the plurality of center holes. The yoke clamp bracket may be constructed from a lightweight material with low density such that it displaces a larger quantity of tank oil and reduces the weight of a distribution transformer.Type: GrantFiled: July 18, 2016Date of Patent: May 22, 2018Assignee: Virginia Transformer CorporationInventor: Subhas Sarkar
-
Patent number: 9959736Abstract: A system, a method and a computer program to monitor a plurality of transformer operating parameters, as well as to accurately control one or more of the transformer operating parameters. Also, the system and method may calculate loss of life and give diagnosis for recovery and provide maintenance notification, along with monitoring the operation of the LTC.Type: GrantFiled: August 16, 2016Date of Patent: May 1, 2018Assignee: Virginia Transformer CorporationInventor: Prabhat Jain
-
Publication number: 20180019048Abstract: A yoke clamp bracket for a transformer core. The yoke clamp bracket may comprise a body portion having a plurality of center holes near each end, a plurality of slots for coil barriers, a plurality of slots for wiring, and attachment points for side brackets and vertical supports. The yoke clamp bracket may be mounted to a transformer core by connectors extending through the plurality of center holes. The yoke clamp bracket may be constructed from a lightweight material with low density such that it displaces a larger quantity of tank oil and reduces the weight of a distribution transformer.Type: ApplicationFiled: July 18, 2016Publication date: January 18, 2018Applicant: Virginia Transformer CorporationInventor: Subhas SARKAR
-
Publication number: 20170278627Abstract: A fuse box mounted on a liquid-filled transformer is disclosed. The fuse box may include one or more fuse link assemblies securing one or more fuses within a base fuse box, a fuse holder coupling the one or more fuse link assemblies within the base fuse box, wherein the one or more fuse link assemblies are pulled-up from the fuse holder by hand to remove the one or more fuse link assemblies from the base fuse box. The fuse box may include a retaining ring to fasten the fuse holder to the one or more fuse link assemblies. The fuse box may include a method for servicing a fuse box on a liquid-filled transformer.Type: ApplicationFiled: June 9, 2017Publication date: September 28, 2017Applicant: Virginia Transformer CorporationInventor: Prabhat JAIN
-
Publication number: 20170252721Abstract: A transformer oil moisture removing apparatus and fabric may he provided. At least one piece of the fabric may be inserted in a transformer such that it is in contact with the transformer oil. The fabric may chemically interact with the oil to remove water and moisture. The fabric may not affect the electrical insulation and cooling properties of the transformer oil. The fabric may be in a transformer for the duration of the transformer's life.Type: ApplicationFiled: March 7, 2016Publication date: September 7, 2017Applicant: Virginia Transformer CorporationInventor: Prabhat K. JAIN
-
Patent number: 9711275Abstract: A fuse box mounted on a liquid-filled transformer is disclosed. The fuse box may include one or more fuse link assemblies securing one or more fuses within a base fuse box, a fuse holder coupling the one or more fuse link assemblies within the base fuse box, wherein the one or more fuse link assemblies are pulled-up from the fuse holder by hand to remove the one or more fuse link assemblies from the base fuse box. The fuse box may include a retaining ring to fasten the fuse holder to the one or more fuse link assemblies. The fuse box may include a method for servicing a fuse box on a liquid-filled transformer.Type: GrantFiled: January 27, 2015Date of Patent: July 18, 2017Assignee: Virginia Transformer CorporationInventor: Prabhat Jain
-
Publication number: 20170117088Abstract: A transformer coil wound in a disc winding arrangement. Discs may be arranged such that the line lead does not connect to the first disc in the transformer coil but instead to a subsequent disc. This arrangement may improve the capacitance between the initial few discs of the winding, making the impulse voltage distribution more uniform without the use of a static end ring or other impulse voltage distribution controlling alterations.Type: ApplicationFiled: October 26, 2015Publication date: April 27, 2017Applicant: VIRGINIA TRANSFORMER CORPORATIONInventor: Subhas SARKAR
-
Publication number: 20170018354Abstract: A tension bar for applying pressure more uniformly by the core bracket of a transformer may be provided. The tension bar may include a bow-shaped flat bar having at least one tightening bolt disposed therein. The at least one tightening bolt may be adjusted to apply pressure on a channel bracket clamping the yoke of a transformer. The tension bar may allow for tension to be applied uniformly along the length of the channel bracket used to clamp the yoke.Type: ApplicationFiled: July 16, 2015Publication date: January 19, 2017Applicant: VIRGINIA TRANSFORMER CORPORATIONInventor: Subhas SARKAR
-
Publication number: 20160348816Abstract: A flange designed for gasket compression control. Flange may have a hollow inner portion surrounded by a substantially flat outer lip, in which there may be a number of boltholes. Flange may have at least one mechanical stopper extending outward from it in a position unobstructed by the gasket; there may be mechanical stoppers on either side of the gasket, separated into “external” and “internal” mechanical stoppers. Mechanical stopper may be of a height equal to or greater than the lower bound of the minimum safe range of the gasket, or alternatively may be paired with a mechanical stopper on another flange such that when the two are mated the combination of the two exceeds the minimum safe range. This value may typically be around twenty to thirty-five percent of the gasket's uncompressed thickness. Optionally, the space between the external and internal mechanical stoppers may be grooved to further serve as a guide.Type: ApplicationFiled: May 26, 2015Publication date: December 1, 2016Applicant: Virginia Transformer CorporationInventor: Prabhat K. JAIN
-
Publication number: 20160352088Abstract: A surge arrester mounting bracket may be provided. A surge arrester mounting bracket may include a plate having an arrester mounting section, a transformer mounting section, and at least one bend disposed therein. A surge arrester mounting bracket may further include at least one support gusset configured to engage and reinforce the plate.Type: ApplicationFiled: May 26, 2015Publication date: December 1, 2016Applicant: VIRGINIA TRANSFORMER CORPORATIONInventor: Prabhat K. Jain
-
Patent number: 9442150Abstract: A system, a method and a computer program to monitor a plurality of transformer operating parameters, as well as to accurately control one or more of the transformer operating parameters. Calculate loss of life and give diagnosis for recovery and provide maintenance notification, monitor the operation of the LTC.Type: GrantFiled: December 17, 2012Date of Patent: September 13, 2016Assignee: VIRGINIA TRANSFORMER CORPORATIONInventor: Prabhat Jain
-
Publication number: 20160217941Abstract: A fuse box mounted on a liquid-filled transformer is disclosed. The fuse box may include one or more fuse link assemblies securing one or more fuses within a base fuse box, a fuse holder coupling the one or more fuse link assemblies within the base fuse box, wherein the one or more fuse link assemblies are pulled-up from the fuse holder by hand to remove the one or more fuse link assemblies from the base fuse box. The fuse box may include a retaining ring to fasten the fuse holder to the one or more fuse link assemblies. The fuse box may include a method for servicing a fuse box on a liquid-filled transformer.Type: ApplicationFiled: January 27, 2015Publication date: July 28, 2016Applicant: VIRGINIA TRANSFORMER CORPORATIONInventor: Prabhat JAIN
-
Publication number: 20160216152Abstract: A vibrational sensor device and method for detecting an energized transformer is disclosed. The device may sense when a liquid-filled transformer is excited either fully or partially. The device may sense when a liquid-filled transformer is operating with or without a load current on a secondary winding of the transformer. The device may annunciate a full excitation state, a partial excitation state, a no excitation state, an OK power supply state and a low battery state. The device may detect magneto restriction vibrations at twice a line frequency such as at 120 Hz for a 60 Hz transformer. The device may be installed on a new or a retro-fit liquid-filled transformer.Type: ApplicationFiled: January 27, 2015Publication date: July 28, 2016Applicant: VIRGINIA TRANSFORMER CORPORATIONInventor: Prabhat JAIN
-
Publication number: 20160153604Abstract: A system and method that may be used to seal one or more submerged openings for a piece of submerged equipment may be shown and described. The system and method can have a pump having an uninterruptable power supply and a display, the uninterruptable power supply includes a battery back-up that provides a constant source of electrical energy; a tube connection extended from the pump, the tube connection providing a pressurized media to the system; a submerged enclosure receiving the pressurized media from the tube connection extending from the pump, the submerged enclosure includes one or more internal bellows, a submerged opening and an electronic module with a differential pressure transducer; a pressure control signal emitted from the differential pressure transducer, the pressure control signal transmitted to and displayed on the display; and an internal leak protector providing an alarm output signal to the display when the pressurized media is leaking.Type: ApplicationFiled: December 2, 2014Publication date: June 2, 2016Applicant: VIRGINIA TRANSFORMER CORPORATIONInventor: Prabhat JAIN
-
Publication number: 20130158897Abstract: A system, a method and a computer program to monitor a plurality of transformer operating parameters, as well as to accurately control one or more of the transformer operating parameters. Calculate loss of life and give diagnosis for recovery and provide maintenance notification, monitor the operation of the LTC.Type: ApplicationFiled: December 17, 2012Publication date: June 20, 2013Applicant: VIRGINIA TRANSFORMER CORPORATIONInventor: VIRGINIA TRANSFORMER CORPORATION