Mounting system for sensors on electrical power lines

Patent metadata

Field	Value
Publication number	US-2020006930-A1
Application number	US-201916570304-A
Country	US
Kind code	A1
Filing date	Sep 13, 2019
Priority date	Oct 12, 2017
Publication date	Jan 2, 2020
Grant date	—

Abstract

A system for monitoring current and voltage from a power source or load at the tap wire connected to an overhead distribution power line, the distribution power line being spaced apart from the ground is provided. The system includes a current clamp sensor coupled to the tap wire and spaced apart from the distribution power line. A sensor is insulated body coupled to the current clamp, the sensor body being configured to simultaneously measure voltage on the overhead distribution power line and current of the tap wire prior to the distribution power line. A mounting assembly is provided that suspends the sensor from the distribution power line, the mounting assembly being coupled between the distribution power line and the current clamp.

First claim

1 . A system for monitoring current and voltage from a power source, the system comprising:
a power source configured to generate electrical power; a first power line electrically coupled to the power source at a first end, the first power line having a first portion disposed underground and a second portion; a primary electrical distribution system spaced apart from the ground, the primary electrical distribution system having a second power line, wherein the second portion is electrically coupled to the second power line; a sensor electrically coupled to the second power line, operably coupled to the second portion, and configured to simultaneously measure voltage and current of the second portion; and a mounting system that suspends the sensor from the second power line, the mounting system comprising:
a first hot line clamp configured to couple with the second portion;
a first spacer member having a length coupled to the first hot line clamp;
a plate coupled to between the sensor and the first spacer member; and
a current clamp coupled to the plate and operably coupled between the sensor and the second portion.

2 . The system of claim 1 , further comprising a tap wire having a first end and a second end, the first end electrically coupled to the second power line, the second end being electrically coupled to the second portion via a fused cutout.

3 . The system of claim 2 , wherein the tap wire is operably coupled to the current clamp.

4 . The system of claim 3 , further comprising an insulating member covering the tap wire.

5 . The system of claim 1 , further comprising:
a second hot line clamp configured to couple with the power line; a second spacer member coupled between the second hot line clamp and the plate; and wherein the wherein the first hot line clamp, second hot line clamp, the first spacer member, the second spacer member, the plate and the sensor cooperate in operation to measure the line to ground voltage of the power line.

6 . The system of claim 1 , wherein the first hot line clamp and the first spacer member are made from the same material.

7 . The system of claim 6 , wherein the material is aluminum.

8 . The system of claim 1 , wherein the first spacer member has a length between 8 inches to 16 inches.

9 . The system of claim 8 , wherein the first spacer member has a length of 10 inches.

10 . A system for monitoring current and voltage from a power source or load at the tap wire connected to an overhead distribution power line, the distribution power line being spaced apart from the ground, the system comprising:
a current clamp sensor coupled to the tap wire and spaced apart from the distribution power line; a sensor insulated body coupled to the current clamp, the sensor body being configured to simultaneously measure voltage on the overhead distribution power line and current of the tap wire prior to the distribution power line; and a mounting assembly that suspends the sensor from the distribution power line, the mounting assembly being coupled between the distribution power line and the current clamp.

11 . The system of claim 10 , further comprising a first power line having a first portion disposed underground and a second portion electrically connected to the tap wire.

12 . The system of claim 11 , further comprising a power source or load coupled to the first portion.

13 . The system of claim 12 , wherein the tap wire is covered with an insulating material.

14 . The system of claim 13 , wherein the voltage potential between the distribution power line and the tap wire is substantially zero.

15 . The system of claim 10 , wherein the mounting assembly includes at least one spacer member having a length, the length being sufficient to space the sensor apart from the distribution power line for operation without effects of inductive coupling.

16 . The system of claim 15 , where in the length is between 8-16 inches.

17 . The system of claim 15 , wherein the mounting assembly further comprises a plate coupled between the sensor and the at least one spacer member.

18 . The system of claim 17 wherein the mounting assembly further comprises a clamp coupled between the distribution power line and the at least one spacer member.

19 . The system of claim 10 , further comprising a controller having a processor, the controller being configured to transmit via a communications medium with a remote computer, the processor being responsive to executable computer instructions for determining a voltage value and a value current of the electricity in the tap wire and transmitting at least one of the voltage value and current value to the remote computer.

Assignees

• Cons Edison Company Of New York Inc

Inventors

• Laglenne John-Paul
• Colangelo Louis R

Classifications

• H02G1/02 Primary

  for overhead lines or cables · CPC title

• H02G7/12

  Devices for maintaining distance between parallel conductors, e.g. spacer · CPC title

• G01R15/142

  Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26 · CPC title

• G01R19/2513

  Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging · CPC title

• G01R15/186

  using current transformers with a core consisting of two or more parts, e.g. clamp-on type (G01R15/142 - G01R15/16 take precedence; tong testers G01R1/22) · CPC title