摘要:
The contact depression effected between the fixed and moveable contacts in a high ampere-rated circuit breaker is fixed after assembly of the current carrying components by the provision of a multi-dimensional contact carrier support bearing. The selection of the support bearing dimension fixes the height of the movable contact arm and the attached movable contact relative to the subjacent fixed contact. Control of the contact depression improves circuit interruption efficiency and extends the operating life of the circuit breaker contacts.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is made manually by means of a ratchet and pawl assembly. A two stage latching arrangement controls the retention and release of the pawl to retain and discharge the operating springs.
摘要:
An operating mechanism is disclosed which is capable of meeting electrical code requirements in the world market. The operating springs controlling the OPEN and CLOSED states of the circuit breaker contacts are charged both before and after the contacts are in their CLOSED conditions. The mechanism is both latched and unlatched by operation of a rotating cradle operator.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The operating springs controlling the CLOSED state of the circuit breaker contacts are contained within a module unit which can be installed both in the field as well as in the factory. A separate module provides the spring bias forces required for each of the circuit breaker ampere ratings.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful closing springs controlling the circuit breaker contacts is made manually by means of a ratchet and pawl assembly. A logic plate interacts with a logic lever, an interlock link and a closing link to prevent the circuit breaker closing button from operating until and unless the closing springs have become fully-charged.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is made manually by means of a ratchet and pawl assembly. A two stage latching arrangement controls the retention and release of the pawl to retain and discharge the operating springs. The latches are interlocked with the operating springs drive shaft to prevent the discharge of the operating springs when the contacts are in the closed condition.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is made manually by a ratchet and pawl assembly. A logic plate interacts with the operating springs charging gear and a logic lever interacts with the ratchet and pawl assembly to prevent the charge indicating flag from signaling until the operating springs have become fully charged.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is made automatically by means of an electric motor. The circuit breaker operating handle connects with the operating springs through a motor operator interface unit to allow manual charging of the operating springs upon stalling of the electric motor.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is made manually by means of an operating handle and a ratchet and pawl assembly. A two-stage latching arrangement controls the retention and release of the pawl to retain and discharge the operating springs. The operating springs cannot become discharged until and unless the operating handle is in a fully retracted position.
摘要:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The powerful operating springs controlling the circuit breaker contacts are restrained by the interaction of a cradle operator and a two stage latching assembly. The latching assembly includes a primary and a secondary latch to insure against nuisance tripping.