General Electric Company

Ge Power Controls France Sas

Abb Schweiz Ag

Janakiraman Narayanan

Mahesh Jaywant Rane

Soundararajan Narayanasamy

Yatin Vilas Newase

Wolfgang Meyer-Haack

Partha Sarathy Doddapadam Srinivasa Raghavachar

Triplicane Gopikrishnan Babu

Pankaj Agrawal

Patrick Letient

Devendra Kumar Sharma

ShachiDevi Tumkur Krishnamurthy

Amit Bose

Simhadri Ramalingeswara Rao Gupta

Biranchi Narayana Sahu

Pavan Ramachandra Vitthal Kashyap

Tirumani Govinda Setty Phaneendra

Chandrakumar Shantaraju

Chandrappa Namitha

Maddela Rajesh Babu

Ramalingam Prem Anand

Dantuluri Varma

Mohandas Nayak

Linda Yvonne Jacobs

Samir Rajauria

Nagaveni Karkada

Shalini Thimmegowda

Sapuram Sudhakar

Anilkumar Dinker Pandit

Anilkumar D Pandit

Sanjoy Bhattacharjee

K V Sridhar

Sachin Kurkure

Hemant Kirit Anjaria

Kadaba Venkatarangan Sridhar

Tanmay Pralhad Tamboli

Tirumani Govinda Phaneendra

R Prem Anand

Piotr Pawel Honkisz

Tumkur K Shachidevi

Ganesh C Shankar

Madhusudana Reddy Vanukuri

Mallikarjuna Heggadadevanapura Thammaiah

Biranchi Narayan Sahu

Praveenkumar Verma

Satish Sahoo

Srinivasa Raghavachar Partha Sarathy Doddapadam

R Prem 93 Murphy Dass Road Anand

Mahesh Jaywant 512 12Th Main Rane

Dantuluri 67 Surya Enclave Varma

Madhusudana Reddy Flat No 507 Vanukuri

A circuit breaker having a monolithic structure and method of making is disclosed. The monolithic structure includes an arm portion having copper and a contact portion having a composite material. The composite material has a metallic matrix and a second phase disposed in the metallic matrix. The method of making the monolithic structure includes introducing a first powder into a first region of a mold, introducing a second powder into a second region of the mold, and consolidating the first powder and the second powder together. The first region of the mold corresponds to a contact portion, and the second region corresponds to an arm portion of the monolithic structure of the circuit breaker.

Monolithic contact system and method of forming

A conductor guide member for a circuit breaker terminal assembly includes a body having at least one conductor guide surface configured and disposed to facilitate alignment between at least one terminal connection member of the terminal assembly and at least one conductor. The at least one conductor guide surface gradually slopes from a first end to a second end. The second end defines a recess.

Conductor guide member for a circuit breaker terminal assembly

A contact system of a circuit breaker includes a fixed contact. The contact system also includes a moveable contact arm assembly comprising at least one moveable contact arm having a moveable contact thereon, the moveable contact arm moveable to define a closed condition and a blow open condition. The contact system further includes a carrier assembly operatively coupled to the moveable contact arm. The contact system yet further includes a latch plate operatively coupled to the carrier assembly. The contact system also includes a trip shaft operatively coupled to the carrier assembly, the trip shaft having a non-circular region defining an engagement surface disposed in contact with the latch plate in the closed condition. The contact system further includes a biasing portion of the moveable contact arm configured to rotate the trip shaft out of engagement with the latch plate and into the blow open condition.

Moveable contact arm releases latch plate engagement in a circuit breaker

A cover assembly for a circuit breaker includes a cover, the cover including a first portion and a second portion. The first portion is configured to at least partially cover a current sensing element within the circuit breaker, and has an interior surface and a cover opening. The second portion extends from the interior surface of the first portion, and has a terminal pocket opening aligned with the cover opening. The cover is configured to receive a load terminal through the terminal pocket opening and cover opening.

Cover assembly for circuit breaker, circuit breaker having the same, and method

In one embodiment, a shutter lock assembly for a circuit breaker cassette having a shutter coupled to a shutter rod is provided. The shutter lock assembly includes a lock plate assembly configured to couple to the circuit breaker cassette and an actuation mechanism having a first end coupled the lock plate assembly. The actuation mechanism is configured to actuate the lock plate assembly to lock the shutter of the circuit breaker cassette in a closed position.

Shutter locking mechanism for circuit breaker assembly

An apparatus includes an enclosure, a plurality of circuit breaker sub poles, each enclosed within a chamber of the enclosure, and a plurality of arc chutes, each installed on one of the chambers enclosing the circuit breaker sub poles.

Current path arrangement for a circuit breaker

A circuit breaker with a locking mechanism is provided, which ensures that circuit breaker is switched OFF before applying any trip free locks. The circuit breaker includes a lay shaft coupled to the circuit breaker contacts, a lay shaft cam coupled to the lay shaft, a lifting plate configured to interface with the lay shaft cam, and a padlock plate configured to engage the lifting plate.

Circuit breaker with locking mechanism

Disclosed herein is a breaker interlock system. The system includes, a trip unit for a breaker, and a breaker receptive of the trip unit. The breaker is closable when the trip unit is assembled thereto and the breaker is non-closable when the trip unit is not assembled to the breaker. The interlock system is further configured to prevent disassembly of the trip unit from the breaker when the breaker is in a closed configuration. The breaker having a plurality of solenoids and each of the plurality of solenoids is in operable communication with the breaker to trip the breaker on command. A first of the plurality of solenoids is responsive to a signal from the breaker via the trip unit, and a second of the plurality of solenoids is responsive to an externally supplied signal from a source other than the electronic trip unit.

Breaker interlock system and method

A contact arm assembly including a plurality of substantially parallel plates having a space between each of the plurality of substantially parallel plates and a plurality of finger assemblies, at least one of the plurality of finger assemblies being pivotally attached to the plurality of substantially parallel plates and being located in the space between each of the plurality of substantially parallel plates, each of the plurality of finger assemblies having a body and an arc runner, the arc runner being locked against the body in at least two locations.

Contact assembly of circuit breaker

Disclosed is a visual and electrical indication on the status of 'Readiness to close' (RTC) for circuit breakers. Exemplary embodiments include a circuit breaker apparatus, including a lay shaft coupled to circuit breaker contacts, a lay shaft cam profile coupled to the lay shaft, a trip free plate coupled to the lay shaft cam profile, a trip paddle coupled to the trip free plate, wherein the trip paddle is coupled to a trip shaft and a ready to close indicator coupled to the trip free plate and charging cam assembly.

Readiness for closing indicator for circuit breakers

A spring discharge mechanism for a circuit breaker is provided. The mechanism includes two linkages for crashing or discharging the circuit breaker compression springs to allow the circuit breaker to be used in either fixed breaker installation or in an installation having a drawout mechanism. The secondary mechanism includes a manual activation linkage that couples with an interface plate. The interface plate is coupled to an opening latch shaft and a closing latch shaft that cooperates to discharge the circuit breaker compression springs. An interface lever is also coupled to the interface plate. The interface lever includes a roller that interacts with a pivoting cam lever coupled to a drawout mechanism. The cam lever interacts with the roller causing the interface lever to rotate the interface plate, the opening latch shaft and the closing latch shaft.

Spring discharge mechanism for circuit breaker

A system for indicating a position of an electrical distribution device configured to be racked into an electrically connected condition within an enclosure and racked out to an electrically disconnected condition via a racking mechanism is disclosed. The system includes a rotating indicator having at least a first position and a second position, the first position indicating the connected condition, and the second position indicating the disconnected condition, the indicator operably connected to the racking mechanism to rotate the indicator in response to movement of the racking mechanism between at least the connected condition and the disconnected condition. The system also includes a biasing device to bias rotation of the indicator toward the first position when the racking mechanism is in the connected condition and to bias rotation of the indicator toward the second position when the racking mechanism is in the disconnected condition. The system further includes a first mechanical stop to hold the indicator at the first position when the racking mechanism is in the connected condition, and a second mechanical stop to hold the indicator at the second position when the racking mechanism is in the disconnected condition.

System and method for indicating a position of an electrical distribution device

A draw out circuit breaker assembly which includes a draw out circuit breaker having a plurality of contacts configured for connecting and disconnecting an electrical power source to an electrical load, a breaker cassette including a draw out support plate housing operational components of the draw out circuit breaker, and a port, and a collapsible telescopic racking handle stored collapsed in the port after the draw out circuit breaker is racked into the breaker cassette.

Draw out circuit breaker assembly having a telescopic racking handle

Disclosed is a racking mechanism for a drawout circuit breaker including a cross shaft movably positioned in an enclosure and at least one input link in operable communication with the cross shaft via at least one connecting link. At least one racking cam is movably positioned in the enclosure and is in operable communication with the input link. Each racking cam has at least one cam slot receptive of a portion of the circuit breaker. Movement of the cross shaft about an axis of the cross shaft is capable of moving the at least one racking cam from an open position toward a closed position with the portion of the circuit breaker disposed in the at least one cam slot, thereby securing the circuit breaker in the enclosure and the at least one racking cam is in the closed position. A method for securing a circuit breaker in an enclosure and a circuit breaker assembly are also disclosed.

Racking mechanism for a circuit breaker

Growing community of inventors

Andra Pradesh, India

Janakiraman Narayanan