Current Clamp Power Distribution for Enclosed Equipment Areas

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Solution Overview

Problem

Accessing and maintaining electrical equipment areas is challenging due to their enclosed nature and safety concerns, requiring significant time, labor, and resources, especially when continuous monitoring is needed, as traditional power sources are not feasible within these areas.

Innovation Solution

A system utilizing a current clamp that induces a current from an electrical conductor, which is then converted and distributed through a power distribution unit to power multiple electrical devices, including testing devices, within the equipment area, allowing for continuous operation without the need for frequent battery replacements or manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If traditional power sources (batteries) are used in electrical equipment areas, then devices can be powered, but frequent access is required for battery replacement which increases safety risks and operational costs

Engineering Contradiction:
Improvepower supply durationVSAvoidaccess time for battery replacement
Core Design Contradiction:
Duration of action of moving objectVSLoss of time

Solution Approach 1:

The system enables self-powered operation by allowing testing devices to harvest energy from the electrical conductors in the equipment area through electromagnetic induction. The current clamp and power distribution unit automatically convert the varying current in conductors to usable DC power, eliminating the need for manual battery replacement and making the system self-sustaining.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The power distribution unit continuously converts varying current from electrical conductors to DC power, providing uninterrupted power supply to testing devices. This continuous energy conversion ensures devices remain powered without interruption, eliminating the periodic interruptions caused by battery replacement.

Inventive Principle:
Principle #20Continuity of useful action

2Ease of repair

If personnel enter electrical equipment areas for maintenance, then devices can be accessed and maintained, but safety risks increase due to high voltage circuits

Engineering Contradiction:
Improvedevice accessibilityVSAvoidelectric shock risk
Core Design Contradiction:
Ease of repairVSObject-affected harmful factors

Solution Approach 1:

The system replaces mechanical battery replacement operations with electromagnetic induction-based power supply. Instead of personnel physically accessing equipment areas to replace batteries, the system uses current clamps that can be positioned externally or safely to harvest power from conductors, eliminating the need for personnel entry and associated safety risks.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The current clamp acts as an intermediary device that safely interfaces with high-voltage conductors to extract power without requiring personnel direct contact with dangerous circuits. The power distribution unit then converts this power to safe, usable levels for testing devices, creating a buffer between personnel and hazardous electrical components.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If panels are opened to access electrical equipment areas, then devices can be installed or maintained, but significant time and energy are required

Engineering Contradiction:
Improvedevice installation easeVSAvoidpanel opening time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The power distribution system is segmented into modular components including current clamps, power distribution units, and testing devices. This modular design allows individual components to be independently positioned, installed, and configured without requiring full panel opening, reducing access time and operational complexity.

Inventive Principle:
Principle #1Segmentation

4Reliability

If multiple testing devices are deployed for continuous monitoring, then ongoing data collection is achieved, but power supply requirements increase

Engineering Contradiction:
Improvemonitoring continuityVSAvoidtotal power consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The power distribution unit serves multiple testing devices simultaneously through a single electromagnetic induction interface. By harvesting power from the electrical conductors and distributing it through multiple outputs, the system provides universal power supply to all connected devices, eliminating the need for separate power sources for each device and reducing total power consumption requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables continuous power supply to testing devices within electrical equipment areas, reducing the need for frequent access and minimizing safety risks and operational costs, while allowing for ongoing monitoring and data transmission.

Implementation Method 1

The current clamp is configured to be clamped around an electrical conductor and output an induced current when a varying current is flowing through the electrical conductor

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The conversion circuitry receives the induced current from the current clamp and electrically converts the induced current to a converted current that is usable to power multiple electrical devices

Methodology Applied
Scientific EffectElectrical conversion:

Data Source

PatentUS9735588B2Power source system with multiple electrical outputs
Publication Date: 2017.08.15 FLUKE CORP
  • US9735588B2 patent drawing
  • US9735588B2 patent drawing
  • US9735588B2 patent drawing

AI summary

A system providing a power source includes an electrical input and multiple electrical outputs. The electrical input is couplable to a current clamp that selectively clamps around at least one electrical conductor. A transformer coupled to the electrical input receives an input electrical signal from the at least one electrical conductor and produces an output electrical signal that is electrically isolated from the input electrical signal. Conversion circuitry electrically converts the output electrical signal to a converted electrical signal that is usable to power multiple electrical devices. Distribution circuitry distributes the converted electrical signal to the multiple electrical outputs, wherein each electrical output is couplable to an electrical device to provide power to the electrical device.