Module for the interconnection of a circuit breaker and a contactor for an electrical assembly comprising a voltage sensor

Patent metadata

Field	Value
Publication number	US-10475614-B2
Application number	US-201715590265-A
Country	US
Kind code	B2
Filing date	May 9, 2017
Priority date	Jul 8, 2016
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

A module for the interconnection between an electrical circuit breaker and an electrical contactor includes a housing and multiple high-power electrical conductors that are housed inside the housing, each of the high-power electrical conductors being suitable for electrically connecting an electrical output of a circuit breaker to an electrical input of a contactor, in order to allow a supply electric current to flow from the circuit breaker to the contactor. This interconnection module additionally includes a voltage sensor, which sensor is suitable for detecting the presence of a voltage between at least two of the high-power electrical conductors.

First claim

The invention claimed is:

1. A module for interconnection between an electrical circuit breaker and an electrical contactor comprising a housing and multiple high-power electrical conductors that are housed inside the housing each of the high-power electrical conductors being suitable for electrically connecting an electrical output of a circuit breaker to an electrical input of a contactor, in order to allow a supply electric current to flow from the circuit breaker to the contactor, wherein the interconnection module additionally comprises a voltage sensor, which sensor is suitable for detecting the presence of a voltage between at least two of the high-power electrical conductors,
wherein two of the high-power electrical conductors are each provided with a first electrically conductive plate, and in that the voltage sensor comprises:
two second electrically conductive plates, each positioned at a distance from and facing one of the first electrically conductive plates; and
a measuring circuit for measuring a measurement voltage between the two second electrically conductive plates, the presence of the voltage being detected on the basis of the value of the measurement voltage, this measurement voltage being dependent on the value of the capacitances between each second electrically conductive plate and the first electrically conductive plate of the corresponding high-power electrical conductor.

2. The interconnection module according to claim 1 , wherein the second electrically conductive plates each include an electrically conductive track formed on one face of an electronic circuit board of the interconnection module extending in parallel to the first electrically conductive plates.

3. The interconnection module according to claim 1 , wherein the surfaces of the second electrically conductive plates are identical to one another.

4. The interconnection module according to claim 1 , wherein the surfaces of the electrically conductive plates are identical to the surfaces of the first electrically conductive plates.

5. The interconnection module according to claim 1 , comprising an electronic processing unit that is electrically connected to the voltage sensor and programmed to transmit a signal to a data bus when the presence or the absence of a voltage is detected by the voltage sensor.

6. The interconnection module according to claim 1 , wherein the voltage sensor comprises a low-pass filter suitable for filtering the measurement voltage.

7. The interconnection module according to claim 1 , wherein the voltage sensor comprises a bidirectional Zener diode for protection from over voltages.

8. An electrical device comprising:
an electrical contactor comprising separatable electrical contacts adapted to connect selectively or to insulate electrically the current inputs and the current outputs of the contactor from one another in response to a control signal,
an interconnection module comprising power electrical conductors electrically connected to the current inputs of the electrical contactor and adapted to connect said electrical contactor electrically to an electrical circuit breaker,
wherein the interconnection module is as claimed in claim 1 , the power electrical conductors of the interconnection module being electrically connected to the current inputs of the contactor.

9. The electrical assembly comprising:
an electrical circuit breaker,
an electrical device including an electrical contactor and an interconnection module connected to the contactor,
wherein the interconnection module is between the circuit breaker and the contactor and electrically connects the circuit breaker to the contactor,
wherein the electrical device is as claimed in claim 8 .

Assignees

• Schneider Electric Ind Sas

Inventors

• Houbre Pascal
• Larcher Patrick

Classifications

• H01H2089/065

  Coordination between protection and remote control, e.g. protection job repartition, mutual assistance or monitoring · CPC title

• H01H89/06

  Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device · CPC title

• G01R15/181

  using coils without a magnetic core, e.g. Rogowski coils · CPC title

• G01R15/16 Primary

  using capacitive devices · CPC title

• H01H2071/124

  with a hybrid structure, the solid state trip device being combined with a thermal or a electromagnetic trip · CPC title