These issues can occur during both the starting and running phases of electrical equipment.
Even though field control panels are provided with alarm systems or data loggers in the main control room, they may not always reveal the exact cause of a fault. In such situations, this fault finder becomes a valuable tool for field electrical personnel to identify the fault.
Presented here is a fault finder circuit based on the STM32 Blue Pill development board. Eight digital inputs and an analogue input are chosen for fault recording. The STM32 board, connected to a laptop computer with the provided Arduino program open and its serial monitor window active, will print the input number, contact status (logic 0 or 1), and its operation time in milliseconds whenever a change in contact state occurs. The ‘serial print’ feature of the Arduino IDE is used to record the status and operation time of the inputs.
The purpose of this device can be explained with the help of the prototype shown in Fig. 1. If all contacts are closed/ through, then the final relay-M will energise to start and run the motor/equipment continuously.
In case one or more contacts open, the relay-M will deenergise to trip the equipment. However, determining which contact initiated the trip can be challenging. In such situations, if the suspected and available duplicate logic contacts of the circuit are wired to this ‘fault finder,’ the first faulty contact can be identified from the contact changeover time recorded in the laptop’s Arduino IDE serial monitor. Thus, the fault can be easily found, analysed, and rectified in a brief time.
The prototype on a breadboard is shown in Fig. 1. The components required to build this device are given in the Bill of Materials table.
Circuit and working
Denne historien er fra August 2024-utgaven av Electronics For You.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra August 2024-utgaven av Electronics For You.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
IndusBoard Standalone IoT LIDAR RADAR
Lidar plays a key role in cartography, mapping, localisation, ADAS, environment scanning, and more. It is widely used in robots, autonomous vehicles, and for intruder monitoring.
MOBILE HOTSPOT/ TETHERING UNIT CHARGING
Using ESP RainMaker App
LONG DURATION TIMER Using Supercapacitor
When charging devices like mobiles and laptops, it is easy to forget to switch off the power once they are fully charged, often resulting in devices remaining connected to the AC mains supply for hours.
Electronic DIGITAL PIANO
Pianos and many other musical instruments have now been digitised.
LED STRIP DIMMER And CALL BELL
An LED dimmer circuit adjusts the brightness of LED strips, serving both as an energysaving tool and a method to create aesthetic lighting.
"Openness Challenges The Traditional Closed Nature Of Hardware IPS To Create Standardised Solutions"
In an interview with EFY’s Yashasvini Razdan, Alex P. James, Dean of Academics at Digital University Kerala, argues that an open AI hardware ecosystem could democratise access to hardware design tools and IPs, much like the Linux movement did for software.
'Beating The Odds To Build Indian Telecom Products'
From a boarding school in Raipur to doing pioneering work on the world’s first Verilog simulator, laying the groundwork for electronics product development in India, and building a company valued at over `200 billion, Sanjay Nayak’s journey rivals the drama of a Bollywood film, with its many twists and turns. EFY’s Yashasvini Razdan traces this remarkable tale of resilience and optimism, beginning in the town of Raipur, where it all began.
"The Core Issue With ADAS Is Not Just Automotive Technology But An AI Challenge"
India’s roads push ADAS to its limits. Can we innovate solutions and lead in safer driving? In this Q&A, EFY’s Mukul Kumar explores this with Gagandeep Reehal, the 23-year-old CEO and Co-founder of Minus Zero.
Can SOFTWARE TOOLS Accelerate Electrification In The AUTOMOTIVE INDUSTRY?
The electrification of automobiles presents a multifaceted challenge, requiring intricate design and simulation. Can software tools address these complexities?
Exploring The World Of DIGITAL TECHNOLOGY At The DIGITAL ART MUSEUM
Digital art museums like TeamLab's Borderless and Sensistan redefine art appreciation, blending technology and creativity to offer immersive,boundary-pushing experiences.
