Pressure relief system and a container, building, enclosure or cubicle including a pressure relief system

Patent metadata

Field	Value
Publication number	US-11495945-B2
Application number	US-201917270919-A
Country	US
Kind code	B2
Filing date	Sep 5, 2019
Priority date	Sep 6, 2018
Publication date	Nov 8, 2022
Grant date	Nov 8, 2022

Abstract

An actively driven pressure relief system for a container, a building, an enclosure, or a cubicle with an electrical installation, the actively driven pressure relief system includes a panel. The system further includes a fault detection device for detecting an arc fault in the electrical installation of the container, the building, the enclosure or the cubicle; and a triggering unit for triggering an opening signal for the panel upon detection of an arc fault by the fault detection device. A panel opening mechanism opens the panel in a destructive manner. Further, a container, building, enclosure or cubicle with an actively operated pressure relief system is described. A method for relieving pressure from a container with a panel and an electrical installation inside the container is also described.

First claim

The invention claimed is:

1. An actively driven pressure relief system for a container, a building, an enclosure, or a cubicle with an electrical installation, the actively driven pressure relief system including a panel and further comprising:
a fault detection device for detecting an arc fault in the electrical installation of the container, the building, the enclosure or the cubicle;
a triggering unit for triggering an opening signal for the panel upon detection of an arc fault by the fault detection device; and
a panel opening mechanism, wherein the panel opening mechanism opens the panel in a destructive manner;
wherein the fault detection device and the triggering unit allow an opening of the panel prior to a pressure rise exceeding a threshold within the container, building, enclosure, or cubicle.

2. The actively driven pressure relief system according to claim 1 , the panel opening mechanism being at least one of: an electrical actuator, a solenoid, a pyrotechnical device, a compressed gas, or a pre-charged mechanical spring.

3. The actively driven pressure relief system according to claim 1 , wherein the fault detection device includes at least one of: an arc detection device, an overcurrent detection device, a reverse current detection device, or a pressure rise detection device.

4. The actively driven pressure relief system according to claim 1 , wherein the triggering unit is part of the fault detection device.

5. The actively driven pressure relief system according to claim 2 , wherein the fault detection device includes at least one of: an arc detection device, an overcurrent detection device, a reverse current detection device, or a pressure rise detection device.

6. The actively driven pressure relief system according to claim 2 , wherein the triggering unit is part of the fault detection device.

7. A container, building, enclosure, or cubicle with electrical installation including one or more electrical devices, the container comprising:
a panel being part of at least one wall or ceiling of the container, the building, the enclosure, or the cubicle; and
an active pressure relief system including the panel and further comprising:
a fault detection device for detecting an arc fault in the electrical installation of the container, the building, the enclosure or the cubicle;
a triggering unit for triggering an opening signal for the panel upon detection of an arc fault by the fault detection device; and
a panel opening mechanism, wherein the panel opening mechanism opens the panel in a destructive manner;
wherein the fault detection device and the triggering unit allow an opening of the panel prior to a pressure rise exceeding a threshold within the container, building, enclosure, or cubicle.

8. The container, building, enclosure, or cubicle of claim 7 , wherein the panel is located in the wall or ceiling being the nearest to the electrical device of the electrical installation with the highest risk of an arc fault.

9. The container, building, enclosure, or cubicle according to claim 7 , wherein the container is a container with a high power rectifier.

10. The container, building, enclosure, or cubicle according to claim 7 , wherein the system includes more than one panel.

11. The container, building, enclosure, or cubicle according to claim 7 , wherein the panel is a metal sheet panel.

12. The container, building, enclosure, or cubicle according to claim 8 , wherein the container is a container with a high power rectifier.

13. A method for relieving pressure from a container, building, enclosure, or cubicle with a panel and an electrical installation inside the container, building, enclosure, or cubicle comprising:
detecting an arc fault in the electrical installation by a fault detection device;
triggering an opening signal for the panel of the container, building, enclosure, or cubicle upon detection of an arc fault by the fault detection device;
forwarding the opening signal to the panel of the container, building, enclosure, or cubicle and initiating the opening of the panel of the container, building, enclosure, or cubicle by a panel opening mechanism, which opens the panel in a destructive manner; and
opening of the panel prior to a pressure rise exceeding a threshold within the container, building, enclosure, or cubicle.

14. The method according to claim 13 , wherein detecting an arc fault in the electrical installation including detecting an arc, an overcurrent, a reverse current, and a pressure rise.

Assignees

• Abb Schweiz Ag

Inventors

• Pers Christer
• Stadler Raeto

Classifications

• H02B13/025 Primary

  Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect · CPC title

• H02H7/125

  for rectifiers · CPC title