IP Library › Granted Patent US 12,646,919
Granted Patent B2
US 12,646,919 · App. 18/414,829 · Granted Jun 2, 2026

Energy reduction maintenance switches with activation alert

Inventor: Md Abid Khan (Al Khobar, SA)
Assignee: SAUDI ARABIAN OIL COMPANY
H02H3/04H02H1/0015H02H3/066
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Quick Facts
Patent No.
US 12,646,919
App. No.
18/414,829
Granted
Jun 2, 2026
Kind
B2
Abstract

An Energy Reducing Maintenance Switch (ERMS) connected to an electrical circuit includes: a switch that activates the ERMS upon being closed or turned-on; a normally-open first contact that closes to activate an instantaneous trip setting of a relay upon activation of the ERMS; and a second contact. The instantaneous trip controls an arc flash in the electrical circuit, and the activated instantaneous trip setting of the relay reduces time of the arc flash in the electrical circuit. Upon activation of the ERMS, the second contact closes to initiate ERMS activation alert in two or more forms.

Claims (51)

1 . An Energy Reducing Maintenance Switch (ERMS) connected to an electrical circuit comprising:

a switch that activates the ERMS upon being closed or turned-on;

a normally-open first contact that closes to activate an instantaneous trip setting of a relay upon activation of the ERMS; and

a second contact,

wherein instantaneous trip controls an arc flash in the electrical circuit,

wherein the activated instantaneous trip setting of the relay reduces time to contain the arc flash in the electrical circuit, and

wherein, upon activation of the ERMS, the second contact closes to initiate ERMS activation alert in two or more forms.

2 . The ERMS of claim 1 , wherein

the ERMS activation alert comprises: a first light disposed on a front panel of a switchgear enclosure; and a second light.

3 . The ERMS of claim 2 ,

wherein the ERMS activation alert further comprises: an alarm disposed on an annunciator panel and,

wherein the annunciator panel indicates a status of the electrical circuit.

4 . The ERMS of claim 2 , wherein the second light blinks while turned on.

5 . The ERMS of claim 2 , wherein the second light is disposed on the switchgear enclosure at a location selected from a group consisting of: a top portion; and a sidewall.

6 . The ERMS of claim 2 , wherein the second light provides illumination greater than the first light upon being turned-on.

7 . The ERMS of claim 2 , wherein the second light comprises: a light bulb and a light fixture to the switchgear enclosure.

8 . The ERMS of claim 1 ,

wherein the ERMS is deactivated by turning off the switch, and

wherein the ERMS restores the instantaneous trip setting to an original setting upon deactivation.

9 . The ERMS of claim 8 , wherein the ERMS opens the first contact and the second contact upon deactivation.

10 . A method of operating an Energy Reducing Maintenance Switch (ERMS) connected to an electrical circuit, the method comprising:

detecting a signal that a switch of the ERMS is on;

closing a first contact of the ERMS, upon detection of the signal that the switch is on;

activating an instantaneous trip setting of a relay upon closing of the first contact,

closing a second contact of the ERMS, upon detection of the signal that the switch is on;

initiating ERMS activation alert in two or more forms, upon closing of the second contact;

wherein instantaneous trip is set by the relay to control an arc flash, and

wherein the activated instantaneous trip setting reduces time to contain the arc flash in the electrical circuit.

11 . The method of claim 10 , wherein the ERMS activation alert comprises: a first light disposed on a front panel of a switchgear enclosure; and a second light.

12 . The method of claim 11 ,

wherein the ERMS activation alert further comprises: an alarm disposed on an annunciator panel and,

wherein the annunciator panel indicates a status of the electrical circuit.

13 . The method of claim 11 , wherein the second light blinks while turned-on.

14 . The method of claim 11 , further comprising:

detecting a signal that the switch is turned off;

restoring the instantaneous trip setting to an original setting upon detection of the signal that the switch is turned off; and

opening the first contact and the second contact.

15 . A non-transitory computer readable medium (CRM) storing instructions for operation of an Energy Reducing Maintenance Switch (ERMS) connected to an electrical circuit, the operation comprising:

detecting a signal that a switch of the ERMS is on;

closing a first contact of the ERMS, upon detection of the signal that the switch is on;

activating an instantaneous trip setting of a relay upon closing of the first contact;

closing a second contact of the ERMS, upon detection of the signal that the switch is on; and

initiating ERMS activation alert in two or more forms, upon closing of the second contact,

wherein instantaneous trip is set by the relay to control an arc flash, and

wherein the activated instantaneous trip setting reduces time to contain the arc flash in the electrical circuit.

16 . The non-transitory CRM of claim 15 , wherein the ERMS activation alert comprises: a first light disposed on a front panel of a switchgear enclosure; and a second light.

17 . The non-transitory CRM of claim 16 ,

wherein the ERMS activation alert further comprises: an alarm disposed on an annunciator panel and,

wherein the annunciator panel indicates a status of the electrical circuit.

18 . The non-transitory CRM of claim 16 , wherein the second light blinks while turned-on.

19 . The non-transitory CRM of claim 16 , wherein the second light is disposed on the switchgear enclosure at a location selected from a group consisting of: a top portion; and a sidewall.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2024
From: KHAN, MD ABID
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 067167/0276 →
Continuity (1)
Related Publication 20250233403A1 · Jul 17, 2025
References Cited (7)
US 10475612B2 · Zhang et al. · 2019 [cited by applicant]
US 11469591B2 · Castillo · 2022 [cited by examiner]
US 20100265629A1 · Beckerman · 2010 [cited by applicant]
US 20160225561A1 · Fukumoto et al. · 2016 [cited by applicant]
US 20230097925A1 · Sarkis · 2023 [cited by examiner]
US 20240030695A1 · Khan · 2024 [cited by examiner]
Non-Final Office Action issued in related U.S. Appl. No. 18/476,153 dated Sep. 24, 2025 (7 pages). [cited by applicant]