Replaceable electrical protection system for equipment under load
An electrical protection, protection device technology, applied in the direction of automatic disconnection emergency protection devices, protective switches, electrical components, etc., capable of solving power failures (for example, disconnecting or cutting off current from upstream and downstream power sources, and making capacitors have Time discharge and other issues
Active Publication Date: 2021-06-04
EATON INTELLIGENT POWER LTD
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- Description
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- Application Information
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Problems solved by technology
However, in order to safely inspect, replace, or add circuit breakers or other electrical protection devices to a circuit, the circuit is often de-energized (e.g., disconnecting or cutting off current from upstream and downstream sources and allowing capacitors time to discharge), so that the electrical protection device will not bear the load
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[0018] Various examples will be described in detail with reference to the drawings, wherein like reference numerals indicate like parts and assemblies throughout the several views. Any examples set forth in this disclosure are not intended to be limiting, but merely set forth some of the many possible ways for implementing the broad inventive aspects disclosed herein.
[0019] The present disclosure relates to electrical protection device systems having multiple interdependent safety features (e.g., keying features, mechanical locks, mechanical interlocks, mechanical latches, etc.) that cooperate to require a specific sequence of assembly and disassembly of the electrical protection device system. A first set of safety features concerns the mechanical interface between the rotatable contacts and their corresponding electrical terminals. A second set of safety features involves the mechanical interface between the rotatable contacts and the trip unit, which opens and closes th...
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The present disclosure relates to an electrical protection system comprising a circuit breaker housing and associated terminals and a method of use thereof which allows a circuit breaker or other electrical protection device to be safely disconnected when power is supplied to at least one of the terminals Added to or removed from a circuit. The disclosed housing and terminals include a series of interrelated safety features that prevent a user from accidentally completing a circuit from one terminal to another when the electrical protection system is in an unsafe condition. The combination of features described herein allows for a replaceable electrical protection device for equipment under load, thereby increasing user safety.
Description
[0001] Cross References to Related Applications [0002] This application was filed August 31, 2017 as a PCT International Patent Application and claims the benefit of U.S. Patent Application Serial No. 62 / 382,974, filed September 2, 2016, the disclosure of which is incorporated herein by reference in its entirety . technical field [0003] The present technology generally relates to electrical protection devices, such as circuit breakers, contactors, starters, switches, fuse boxes, etc., and their safer construction, installation and use. Background technique [0004] A circuit breaker is an electrical device used in an electrical circuit to protect components downstream of the circuit breaker from overload due to excessive voltage or current. When an overload condition is detected, the circuit breaker will trip, causing the circuit to open at the circuit breaker, and the downstream components will be isolated from the current flow from upstream. Circuit breakers can also...
Claims
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IPC IPC(8): H01H85/25H01H33/46
CPCH01H9/22H01H71/025H01H71/08H02B1/056H02B11/04H01H71/126H01H9/54H01H71/2445H02H1/0061H02H3/38
Inventor J·M·马纳汉B·A·弗里尔
Owner EATON INTELLIGENT POWER LTD