Circuit Breaker Panel With Integrated Power Supply
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Solution Overview
Problem
Existing circuit breaker panels with remotely operated circuit breakers require dedicated power circuits for remote operation, increasing costs and maintenance time due to the need for external power to control the breakers.
Innovation Solution
Incorporating a power supply within the circuit breaker that converts power from the protected circuit to operate the separable contacts, and using a processor to determine conditions for opening or closing the contacts based on control signals, eliminating the need for dedicated power signals and reducing wiring requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If external power is provided on a dedicated circuit to power remote operating mechanisms, then remote operation capability is achieved, but cost and maintenance time increase
Solution Approach 1:
The circuit breaker powers its own remote operating mechanism using power converted from the protected circuit through an integrated power supply. The power supply converts power from the line to operate the remote mechanism, eliminating the need for external dedicated power circuits and reducing system complexity
Solution Approach 2:
The power supply and remote operating mechanism are integrated within the circuit breaker itself. The power supply is electrically connected between the line and load and is structured to convert power from the line to use for opening or closing the separable contacts, merging multiple functions into a single unit
2Reliability
If dedicated power circuits are used for remote operation, then reliable power supply is ensured, but installation complexity and time increase
Solution Approach 1:
The circuit breaker uses its own protected circuit power to operate the remote mechanism through the integrated power supply, eliminating the need for separate dedicated power circuit installation and reducing installation complexity
Solution Approach 2:
The power supply serves multiple functions: it converts power from the line, stores energy in a capacitor, and provides power to the remote operating mechanism. This multi-functionality eliminates the need for separate dedicated power circuits while maintaining reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces the cost and installation time of circuit breaker panels by utilizing existing power sources and enabling more efficient control of circuit breakers, allowing for selective operation based on specific conditions without the need for external power signals.
Implementation Method 1
a power supply structured to convert power from a protected circuit to power opening or closing of separable contacts
Data Source
AI summary
A circuit breaker panel includes a control unit structured to generate a control signal and a number of circuit breakers. At least one of the circuit breakers includes a number of sets of separable contacts and is structured to open or close one set of separable contacts based on the control signal. At least one of the circuit breakers is structured to electrically connect between a line and load and includes a power supply structured to convert power from the line and to use the converted power to open or close the set of separable contacts.