Study of Inrush Current
The selection of over-current protection devices such as fuses and circuit breakers is made more complicated when high inrush currents must be tolerated. The over-current protection must react quickly to overload or short circuit faults but must not interrupt the circuit when the (usually harmless) inrush current flows…
Eaton Powering Infrastructure
As a global technology leader in power management solutions and with a host of new technologies and solutions, Eaton is responding to some of the most critical electrical power management challenges that the country faces today.
Common Errors While Designing an Electrical Protective Scheme
If the selection of inappropriate specifications switchgears go unnoticed, it may jeopardize safety of man and machines both. Therefore, utmost care is required, while designing an electrical protective scheme as far as selection of CTs of correct specifications, switchgears, etc is concerned.
Safely Grounded!
Timing measurements on gas-insulated switchgear (GIS) with grounding on both sides.
Smart Switchgears for Smart Grid
Given their critical role in substation automation, the scope of switchgear is also expected to grow considerably in the near future. Given the government’s reform initiatives, the switchgear market is likely to continue on its growth trajectory.
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
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
CONCEPTS ON BREAKER
“Circuit breakers are mechanical switching devices, capable of making, carrying and breaking currents under normal circuit conditions – and also making, carrying for a specified time and breaking currents under specified abnormal circuit conditions such as those of a short circuit... - Dr P K Pattanaik
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
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
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
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
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
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
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
