Journal of Science Engineering Technology and Management Science

The evaluation of quality of an electro mechanical relay during production and the reliability of an entire series operated at high electric current values during the commutation process are performed using thermal imaging. Thermal photography can be used to determine which contacts need replacing and how many have worn out. A thermal picture is used to measure the length of the gas discharge, which acts as gauge of the rate of contact wear. This study provides the method for evaluation quality of electro mechanical relays designed specifically for switching of massive electrical circuits in context of railway automation.

Keywords : NDE, electromechanical, quality thermography, and relays

Author : Mounica

Title : Thermographic Assessment of the Quality of EM Relays in Railroad Automation

Volume/Issue : 2025;02(02)

Page No : 01-06

This model serves as a simplified representation of the actual Zafarana wind farm, which holds the distinction of being Egypt's largest. We will use it for various simulations and show how different generators respond to the same operating conditions and power rating (700 kW). The second part of this paper explains the pitch controller simulation model, sometimes known as the transient fault controller, which enables the wind farm system to endure short-term malfunctions while maintaining turbine functionality. The controller's design is described, and simulation is used to assess how well it works. The turbine's behavior is examined, and the control methods are described. The system's response to a three-phase short circuit before the transient fault controller (TFC) was added and after the suggested controller was implemented will be contrasted. For simulating both static and dynamic electric, electromagnetic, and electromechanical systems, the model is made using MATLAB software.

Keywords : Ride through fault, Wind farm, Studies on the stability of transient and fault controllers

Author : Surendra Varma

Title : Implementation of Grid System In Wind Farm

Volume/Issue : 2025;02(02)

Page No : 07-14

A country's rural development and poverty reduction depend heavily on rural electricity. While the agriculture industry contributes 1.9 percent of India's GDP, the country's GDP is growing at 8%. The Indian government has set the lofty goal of electrifying every village by 2008 and every rural home by 2012. With the Electricity Act of 2003, deregulation, the unbundling of State Electricity Boards (SEB), Independent Power Producers (IPP), Electricity Regulatory Commissions, Rural Electric Corporation (REC), the Rajiv Gandhi Grameen Vidyutikaran Yojana (RGGVY), the Accelerated Power Development and Reform Program (APDRP), and other initiatives, the Indian government has already taken proactive measures. The socioeconomic development of the town has not benefited greatly from electricity. This article attempts to evaluate the state of power sector changes and their effects on rural India's electrification. The difficulties this method faces are also noted.

Keywords : Rural, electrification, power, sector, urban

Author : Srikanth and Niharika

Title : India's Shifting Power Sector Reform Paradigm: Rural Electrification

Volume/Issue : 2025;02(02)

Page No : 15-17

The placement of distributed generation (DG), capacitors, and ULTC transformer tap settings can all be employed separately to lower loss, enhance the voltage profile, and raise the distribution network's available transfer capability (ATC). These devices will be more effective if they are placed and set simultaneously. This paper uses a multi-objective function to implement this strategy. Reducing loss, improving voltage, and raising ATC make up the objective function. The objective function is optimized through the application of Genetic Algorithm (GA) approach. The suggested approach is used on the IEEE 41 bus radial distribution network to demonstrate its efficacy. The outcomes demonstrate that this approach improves the objective functions more effectively.

Keywords : DG positioning, capacitor positioning, loss mitigation, enhancement of the voltage profile, Transfer capability available

Author : Ashok Naidu and Deepak

Title : Positioning Capacitors and Distributed Gen Units for Multi-Objective Optimization

Volume/Issue : 2025;02(02)

Page No : 18-20

The reliability of the series can be ensured at higher electric current values during the commutation process by employing thermal imaging to assess the quality of an electro-mechanical relay during manufacture. Thermal photography is used during exploitation to help identify which contacts require replacement and to offer information about the extent of contact wear. The length of gas discharge is measured using thermal imaging, and this length serves as a gauge for how quickly the contacts are wearing out. A technique for evaluating the quality of electro-mechanical relays, which are specifically designed for switching strong electrical circuits used in railway automation, is provided in the article.

Keywords : Thermography, Quality, NDE, and Electromechanical relays

Author : Naresh

Title : Thermographic Assessment of the Quality of Electro-Mechanical Relays in Railroad Automation

Volume/Issue : 2025;02(02)

Page No : 21-25

Interior Permanent Magnet Synchronous Motors (IPMSMs) are widely adopted in electric vehicle (EV) propulsion systems due to their high efficiency and torque density. However, torque ripple remains a significant challenge, particularly under dynamic load conditions affecting drivability, efficiency and component lifespan. This study presents a comparative analysis of two prominent control strategies—Field-Oriented Control (FOC) and Direct Torque Control (DTC)— in terms of their effectiveness in reducing torque ripple in IPMSM drives. A simulation framework was developed using Python to model the motor behaviour under identical speed and load conditions. The results indicate that FOC produces smoother torque output with minimal ripple, owing to its decoupled control of flux and torque through dq-axis currents. In contrast DTC despite offering faster dynamic response introduces higher torque ripple due to its hysteresis-based voltage vector switching. Quantitative comparisons based on torque ripple amplitude, current quality and speed regulation confirm the superiority of FOC for applications where smooth and efficient torque delivery is critical. This research reinforces FOC as the preferred control strategy for IPMSM-driven EVs, especially in scenarios demanding high precision and minimal mechanical stress

Keywords : Interior Permanent Magnet Synchronous Motors (IPMSM), Field-Oriented Control (FOC) and Direct Torque Control (DTC)

Author : G Sudeep, M Vijayakumar Naik, Y Pavani, D VenkatabramhaNaidu

Title : PERFORMANCE EVALUATION OF TORQUE CONTROL STRATEGIES IN ELECTRIC VEHICLE IPMSM DRIVES

Volume/Issue : 2025;02(02)

Page No : 26-30

Agriculture assumes greater importance in a developing country like India for its varied contributions to the national economy. Nearly 72 per cent of the total population directly depends on this sector for their livelihood. In making available the three basic needs for human existence viz., food, shelter and clothing, agriculture leads over all the other sectors of the economy. In addition to these, it provides all the fodder that is needed to sustain livestock whose number runs into several crores. Agriculture sustains much of the non-agricultural activities of the economy pertaining to manufacture, trade and transport. For a variety of manufacturing industries, it provides raw materials or inputs. Agricultural goods continue to figure considerably in both the export and import trades. The importance of such goods lies in the foreign exchange that exports make available, and the imports of goods that they make possible. In this way, agricultural exports and imports play a vital role in the foreign trade of the country.

Keywords :

Author : Dr.A. Rambabu, Dr .S. Gopi krishna

Title : RURAL FINANCIAL INSTITUTIONALS IN INDIA

Volume/Issue : 2025;02(02)

Page No : 31-35