Test point voltage sensor for high voltage separable connectors

US11262387B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• David V. Mahoney · Austin, US
• Carl J. Wentzel · Austin, US
• Shuguang Wu · Austin, US
• Laszlo Markos · Austin, US
• Andrew C. Lottes · Austin, US
• James S. McHattie · Austin, US
• Christopher R. Wilson · Nonatum Mills, US
• Richard D. Twigg · Columbia, US
• Pete D. Jordan · Mabank, US
• Sean C. Davis · Austin, US

Key dates

• Filing date: Sep 27, 2019
• Grant date: Mar 1, 2022
• Expiry date: Apr 11, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01R2201/20
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device to measure the voltage at a test point, also referred to as a test point voltage sensor, comprises a housing formed from a first material and a second material, wherein the first material comprises an insulating material and the second material comprises a conductive or semiconductive material. The housing includes an opening configured to cover a test point of a cable accessory. The device further includes a pressure pad, disposed in the housing, having a conductive mating surface configured to contact a test point of the basic insulation plug or end plug. The device further includes a low side capacitor embedded in the housing and electrically coupled to the conductive mating surface. The device further includes a signal wire electrically coupled to the low side capacitor.