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A Hooter Alarm System For Detecting A Short Circuit

Abstract: The present invention pertains to a hooter alarm system 10 for detecting a short circuit. The hooter alarm system 10 comprises a circuit breaker 1, an auxiliary contact 4 includes normally closed (NC) contact 4A and normally open (NO) contact 4B, a hooter alarm 6, a red indicator light 7, and a green indicator light 8. The hooter alarm system 10 detects short circuits early and allows immediate action to be taken on board the ship to prevent potential damage.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
14 March 2023
Publication Number
38/2024
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application

Applicants

MAZAGON DOCK SHIPBUILDERS LIMITED
Dockyard Road, Mazgaon, Mumbai – 400010, Maharashtra, India.

Inventors

1. JAGTAP, Vivek Uttam
Mazagon Dock Shipbuilders Limited, Dockyard Road, Mazgaon, Mumbai 400010 Maharashtra India

Specification

DESC:FIELD OF INVENTION:
[001] The present invention relates to a short circuit detection system. More specifically, the present invention relates to the hooter alarm system that detects short circuits and warns of potential hazards on ships.

BACKGROUND AND PRIOR ART:
[002] A short circuit occurs when an electrical current is allowed to flow along a path of lower resistance than intended, causing an excess of current to flow through the circuit. This can result in overheating and damage to electrical components, as well as the risk of fire or electrical shock. A short circuit on a ship can be a serious safety hazard, as it can cause electrical fires or other accidents.

[003] US Patent US8643993B2 discloses a short-circuit detection circuit and a short-circuit detection method. The short-circuit detection circuit detects whether an output node is short-circuited to a first predetermined level. A first switch circuit which is controlled by a control signal is coupled between the output node and a second predetermined level. The short-circuit detection circuit includes: a determination circuit, which is coupled between the output node and the second predetermined level, wherein when the determination circuit is enabled, it generates a determination signal according to whether the output node is short-circuited to the first predetermined level; and a second switch circuit, which generates a short-circuit detection signal according to the determination signal.

[004] US Patent US6437576B2 discloses the method and device for the rapid detection of short-circuits in an electrical network. The method is based on estimating the electrical characteristics of the short-circuit load and calculating the peak value of the current on the basis of N successive samplings of the instantaneous current (i(t)). If the calculated value, typically available before the current actually attains this value, is greater than a pre-established threshold (Icc), a signal (C) is emitted indicative of a short-circuit fault. The calculation of the peak value may occur automatically for example upon switching on, or be subject to the exceeding of a guard threshold (Is) by the instantaneous current (i(t)). Moreover, the method makes it possible concurrently to determine the value of the power factor of the short-circuit (cos f) and the phase of the voltage at the moment of the short-circuit.

[005] The above-mentioned prior arts disclose the various methods for detecting short circuits in electrical systems, but do not specify an alert or warning system.

[006] To address the aforementioned issue, an alarm system for detecting short circuits aboard the ship can provide an additional layer of safety by alerting people in the area to the presence of a short circuit and allowing them to take appropriate action to avoid injury or damage.
SUMMARY OF THE INVENTION:

[007] The principal object of the present invention is to provide a hooter alarm system for detecting short circuits and warning of potential damage on board the ship.

[008] Another object of the present invention is to provide a hooter alarm system that detects the sudden increase in current flow due to a short circuit and activates an alarm.

[009] One of the objects of the present invention is to provide a hooter alarm system that can be useful for detecting short circuits because it provides a quick and easy way to detect faults in a circuit.

[010] Another object of the present invention is to provide a hooter alarm system that alerts workers to a potential hazard and helps prevent accidents.

[011] Another object of the present invention is to provide a hooter alarm system that can be useful in situations where short circuits occur in difficult-to-reach areas where other detection methods may be ineffective.

[012] Accordingly, the present invention pertains to a hooter alarm system designed for ships to detect short circuits, minimizing potential hazards.

[013] In an aspect of the present invention, a circuit breaker 1 connected between an incoming supply and a load, an auxiliary contact system is attached to the incoming supply system through a contact point, wherein said auxiliary contact system includes normally closed (NC) contact and normally open (NO) contact, a hooter alarm is connected in series connection with the normally closed (NC) contact through a first end ,a red indicator light is connected in parallel connection to the hooter alarm, a green indicator light is connected to the second end of the hooter alarm and a neutral through a first indicator point.

[014] In an aspect of the present invention, the circuit breaker is a 20 Amp miniature circuit breaker (MCB) connected between the incoming supply system and the load.

[015] In an aspect of the present invention, the second indicator point of the green indicator light is connected to the NO contact.

[016] In an aspect of the present invention, the NO contact is configured to become NC contact, and the NC contact is configured to become NO contact when power is supplied and the circuit breaker is activated which illuminates the green indicator light during normal operation.

[017] In an aspect of the present invention, the NC contact and NO contact both are configured to close in the event of a short circuit which triggers the hooter alarm and activates the red indicator light.

BRIEF DESCRIPTION OF DRAWINGS:
[018] The invention has other advantages and features which will be more readily apparent from the following detailed description of the invention and the appended claims, when taken in conjunction with the accompanying drawings, in which:
Figure 1 illustrates the circuit diagram of the hooter alarm system for detecting short circuits.

DETAILED DESCRIPTION OF THE INVENTION:
[019] The invention is described herein in detail with the help of figures appended at the end of the specification. The figures illustrate the preferred embodiment as well as other embodiments that define the scope of the present invention. However, it may be understood that the figures presented herein are intended to exemplify the scope of the invention only. The person skilled in art may note that by no means the figures limit the scope of the invention. Any variation in the drawings by any other person will be falling in the scope of the present invention.

[020] Throughout the specification and claims, the following terms take the meanings explicitly associated herein unless the context clearly dictates otherwise. The meaning of "a", "an", and "the" include plural references. The meaning of "in" includes "in" and "on." Referring to the drawings, like numbers indicate like parts throughout the views. Additionally, a reference to the singular includes a reference to the plural unless otherwise stated or inconsistent with the disclosure herein.

[021] The present invention discloses a hooter alarm system for short-circuit detection. The hooter alarm system detects short circuits early and allows immediate action to be taken to prevent potential damage on board the ship. It can be used to avoid electrical fires and other accidents on ships due to short circuits. The hooter alarm is linked to the circuit board. When a short circuit occurs, the hooter will sound to warn of the possible hazard on the ship.

[022] Fig.1 illustrates the circuit diagram of the hooter alarm system 10 for short-circuit detection. The hooter alarm system 100 comprises a circuit breaker 1, an auxiliary contact system 4 includes normally closed (NC) contact 4A and normally open (NO) contact 4B, a hooter alarm 6, a red indicator light 7, and a green indicator light 8.

[023] In a preferred embodiment of the present invention, a circuit breaker 1 is connected between the incoming supply system 2 and the load 3. The auxiliary contact system 4 is linked to the incoming supply 2 via contact point 5. The auxiliary contact system 4 includes NC (normally closed) contact 4A and NO (normally open) contact 4B. connection with the normally closed (NC) contact 4A through a first end 6A and second end 6B of the hooter alarm 6 is connected to the green indicator light 8. The red indicator light 7 is connected in parallel connection to the hooter alarm 6. The green indicator light 8 connected to the second end 6B of the hooter alarm 6 and to a neutral 9 through the first indicator point 8A. The second indicator point 8B of green indicator light 8 is connected to the normally open (NO) contact 4B. When the supply is turned ON and the circuit breaker 1 is switched ON, current flows through the NO contact 4B, NO contact 4B becomes NC contact 4A and NC contact 4A will become NO contact 4B. When there is a short circuit, NC contact 4A becomes NC contact 4A again and NO contact 4B becomes NC contact 4A. Because of this, a red indicator light 7 near the hooter alarm 6 glows and the hooter alarm 6 begins to ring loudly.

[024] In an embodiment of the present invention, the circuit breaker 1 is a 20 Amp miniature circuit breaker (MCB) connected between the incoming supply system 2 and the load 3.

[025] In an embodiment of the present invention, the second indicator point 8B of the green indicator light 8 is connected to a NO contact 4B, it implies that the green indicator light 8 is designed to illuminate when the NO contact 4B is closed. when the NO contact 4B closes and becomes NC contact 4A due to the activation of the circuit, current flows through the switch and subsequently through the green indicator light 8, causing it to illuminate.

[026] In an embodiment of the present invention, the NO contact 4B becomes the NC contact 4A and NC contact 4A will become NO contact 4B, allowing current to flow through the green indicator light and illuminate it during normal operation. This indicates that the circuit is operating normally and there are no short circuits.

[027] In an embodiment of the present invention, the NC contact 4A becomes NC contact 4A again and NO contact 4B becomes NC contact 4A, activating the red indicator light 7 and interrupting the flow of current to the green indicator light 8 when a short circuit occurs. As a result, the green indicator light 8 turns off while the red indicator light 7 turns on, signaling the presence of a short circuit by triggering the hooter alarm 6.

[028] Although a particular exemplary embodiment of the invention has been disclosed in detail for illustrative purposes, it will be recognized by those skilled in the art that variations or modifications of the disclosed invention, including the rearrangement in the configurations of the parts, changes in steps and their sequences may be possible. Accordingly, the invention is intended to embrace all such alternatives, modifications, and variations as may fall within the spirit and scope of the present invention.

[029] The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.

ADVANTAGES OF THE INVENTION:
[030] The present invention provides a hooter alarm system that detects short circuits and allows immediate action to prevent damage aboard the ship.
[031] The present invention provides a hooter alarm system that is relatively easy to install and can be integrated with existing electrical systems on a ship.
[032] The present invention provides a hooter alarm system that helps to prevent electrical fires, equipment damage, and other accidents on the ship due to short circuits.
[033] The present invention provides a hooter alarm system that helps to maintain the operational integrity of the ship and minimizes downtime and potential costly repairs.
,CLAIMS:1. A hooter alarm system 10 for detecting short circuits, comprising:
a circuit breaker 1 connected between an incoming supply system 2 and a load 3;
an auxiliary contact system 4 attached to the incoming supply 1 through a contact point 5, wherein said the auxiliary contact system 4 includes normally closed (NC) contact 4A and normally open (NO) contact 4B;
a hooter alarm 6 connected in series connection with the normally closed (NC) contact 4A through a first end 6A;
a red indicator light 7 connected in parallel connection to the hooter alarm 6;
a green indicator light 8 connected to the second end 6B of the hooter alarm 6 and to a neutral 9 through a first indicator point 8A.

2. The hooter alarm system 10 as claimed in claim 1, wherein the circuit breaker 1 is a 20 Amp miniature circuit breaker (MCB) connected between the incoming supply system 2 and the load 3.

3. The hooter alarm system 10 as claimed in claim 1, wherein a second indicator point 8B of green indicator light 8 is connected to the NO contact 4B.

4. The hooter alarm system 10 as claimed in claim 1, wherein the NO contact 4B is configured to become NC contact 4A and the NC contact 4A is configured to become NO contact 4B when power is supplied and the circuit breaker 1 is activated which illuminates the green indicator light 8 during normal operation.

5. The hooter alarm system 10 as claimed in claim 1, wherein the NC contact 4A and NO contact 4B both are configured to close in the event of a short circuit which triggers the hooter alarm 6 and activates the red indicator light 7.

Documents

Application Documents

# Name Date
1 202321017237-STATEMENT OF UNDERTAKING (FORM 3) [14-03-2023(online)].pdf 2023-03-14
2 202321017237-PROVISIONAL SPECIFICATION [14-03-2023(online)].pdf 2023-03-14
3 202321017237-POWER OF AUTHORITY [14-03-2023(online)].pdf 2023-03-14
4 202321017237-FORM 1 [14-03-2023(online)].pdf 2023-03-14
5 202321017237-DRAWINGS [14-03-2023(online)].pdf 2023-03-14
6 202321017237-Proof of Right [28-03-2023(online)].pdf 2023-03-28
7 202321017237-ENDORSEMENT BY INVENTORS [14-03-2024(online)].pdf 2024-03-14
8 202321017237-DRAWING [14-03-2024(online)].pdf 2024-03-14
9 202321017237-COMPLETE SPECIFICATION [14-03-2024(online)].pdf 2024-03-14
10 Abstract1.jpg 2024-05-22
11 202321017237-FORM 18 [08-10-2025(online)].pdf 2025-10-08