HV switchgears are normally well built and accidents are rare but when they do happen, the consequence to human life, downtime, financial losses and image of the company and stakeholders can be very significant. Therefore, it is always best to perform any HV switching from a safe distance away. Statistically, accidents are caused by human or mechanical issues which creeps up over time. In this work, after much deliberation an electropneumatic system was developed to trigger HV switching from 25 m away. Much trial and error were done to achieve the finalized system The Switchgear Safety System developed was tested to be capable of switching a 11kV OCB, the racking in and out of the cubicle type VCB and even replacing the human finger to push the push-button type of motorized HV switchgears which is commonly sold today. Though these latest push-button type switchgears look safe, only the high muscular strength human hand action is replaced by an electric motor, the mechanical engineering system behind, is still the same and therefore should be switched from a safe distance away.
The use of IoT in farming has enabled plants to get precise amounts of water, nutrients, sunlight and heat. Historically planting has always been in soil but SiO2 is not consumed. Plants given mechanical support will grow with their roots in a container of nutritious water. Such hydroponics can achieve 30-50% faster growth, with less space/output, utilizing 1000% less water. Light can either be from the sun penetrating greenhouses or from LEDs. Such systems have enabled the tiny country of Netherlands to become the second largest exporter of food in the world. This must be the solution to supply food to an ever-increasing population of humans. In this research done in 2021, tomato plants were grown in coco pit mixed with perlite in four Dutch buckets with an automated irrigation system. The output plants were compared with control grown in the soil in clay pots. The temperature, moisture, pH and EC were monitored. Data from two sensors were exported to a laptop over Bluetooth. The usage of solar panels to power the system was also studied. The overall results indicate 34 - 67% better characteristics for the plants grown with this technique compared to the control grown in normal soil.
The aim of this research was to design and build a water supply system for a village in rural Malaysia. Very often technologies previously developed for water supply are not known or specifically upgraded to suit a particular population (or village). This has resulted in 600 million humans still living in abject poverty. Companies can be called in to develop water supply systems but too often their profit motive will make the project inviably expensive. This project was accomplished with a very tight research grant, lots of trial and error and engineering knowledge. The village is located 103 kilometers from Kuching. The final system is a 3Ø, 4 HP pump placed on a floatable wooden barge near the river pushing water up 120m over an elevation of 9m to a Pump House located behind the Community Hall of the village. Another 3Ø, 1 HP pump is used to pump water from the 9000L holding tank to the 38 individual homes of the village. Upon achieving a supply of water, other aspects of developing the village using modern technology was worked upon. This will enable villagers to get out of the poverty trap and approach life with renewed confidence.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.