Retrofitting of Oil Circuit Breakers
Retrofitting old medium voltage switchgear with newer technology is an efficient, cost effective and economical option for preserving existing assets, thus, saving cost and time. In the race of implementation and adaptation of new technology we just destroy existing installation by scraping the products for want of alternate solutions and technologically sound and reliable supplier… - Paresh Shah, N P Jhaveri
Smart Transient Free Switching of Switchgears
In this article a basic duty of a “Controlled Switching Device” in back to back switching of a shunt capacitor banks has been explained. The Transients developed are very high in nature and are very injurious to the circuit breaker used for this duty.
A case study, highlighting the need for implementing such device for back to back switching of shunt capacitor banks is also described... - Er K K Murty
Switchgear Market worth USD 125.10 bn by 2022
The global market is set to witness a significant growth due to the continued growth of construction and developmental activities, increasing access to electricity, and growth of renewable power generation projects…
Influence Of Overvoltage Current
The work presents the research of high voltage circuit breakers characteristics influence on switching over-voltages and over-currents conditioned by inductive and capacitive load's Switchings. The suggestion for the circuit breakers choice from the point of view of permissible levels of voltages and induced Electro-motive Force in secondary circuits are given... - Amol Sonawane
Sulphur Hexa Floride Circuit Breakers
There are attractive possibilities of the combination of SF6 insulation with vacuum interrupters. Another recent suggestion is to use liquid SF6 in a container much like oil… - Prof N S Gorhe
REWIRING INDIAN ELECTRICITY
Strategic mapping of Indian electrical equipment industry - Subhajit Roy, Group Editor
Looking At The Future
The compactness of Gas Insulated Switchgears (GIS) has a direct influence on land requirement, and land cost. Compact modular designs offer many possibilities in layout design, and allow tailor made applications... - Md. Mobinul Islam,Shahnawaz Ahmad
Trip Circuit Supervision In Switchgear
Due to operator's negligence, a catastrophic failure of critical equipment in the installation may occur – even where 'TCH Check Push Button and a TCS Lamp' are present. What is the remedy? - K Sivakumar
Electrical Circuit Breakers
Many unwanted disturbances or fluctuations in voltage or current of electric circuits take place due to many known or controlled and unknown or uncontrolled reasons – like sparking, high voltage, moisture, leakage, over loading etc. Thus, use of appropriate switchgears protect us from harmful damages... - Dr S S Verma
Switch To Switcgears,And Circuit Breakers With Relays
The human progress is a continuous journey, so what is in vogue today becomes obsolete after some time. Still the journey is continuing... - P S Shah
Focusing On The Global Switchgear Industry
Many innovations are happening in the field of switchgear globally. Eaton has recently introduced an LV switchgear designed in two parts. Alstom has debuted installation of HYpact switchgears in Austria. SENSeOR’s new technology is helping in preventing problems through remote surveillance of the switchgear... The market for switchgears will continue to evolve globally, being led mainly by escalating demand for renewable sources of energy… - P K Chatterjee
Switchgear – Preparing for a Sea Change
How we can expect the Indian switchgear industry to evolve in the future? Here’s an overall analysis of market status, growth drivers and future outlook. - By Subhajit Roy, Group Editor
Fault Level Role in Selection of Protective Equipment in Power System
Almost after a decade, US economy on rising trend, a very good news for all of us. India is also an emerging economy, where power sector has to play crucial role. - Aqeel Ahmad
Load Break Switch: Evaluation of Breaking & Making Capabilities
Among several switching devices largely used in medium voltage distribution systems, which change the grid configuration, isolates faulty parts from the grid, etc. Load break switch is a remarkable one. For the reason to analyse the interrupting capabilities, load break switch rated up to 52kV has to undergo various test duties according to IEC 62271-103. This article focuses on the parameters involved in evaluation of its behaviour during make-break tests. - Yugal Agrawal, K.Sharath kumar
Why Intelligent Switchgears?- Subhajit Roy, Group Editor
With the devices getting smarter, user interfaces getting IoT enabled, the surge in intelligent switchgear is the next big trend.
