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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

Covid struck & different businesses were affected in different ways. Some had to shut down. Some worked overtime to cope with demands never experienced...

Due to the continuous increase of power handling capacity, increase in network voltages, continuous design improvements and operational requirements of switchgear. In this article, short circuit test duty requirements of 12kV circuit breaker are discussed. By Yugal Agrawal

HPL has proudly unveiled its latest innovation in power management—the Supreme Intelligent ATS series, engineered to deliver uninterrupted power with automation-grade intelligence. Designed for...

Transformation of the electrical construction material industry especially, in the switchgear market is expected to drive the demand for sustainable switchgear products. The switchgear...

We at System Protection, are very proud of our approach of looking at problems in a 360 degree manner, rather than just looking at...

With the pace of government initiatives for development of smart grid, there is need to develop different kinds of switchgear suitable for smart grid operation and that is more compact, reliable, environment friendly and requires minimum installation and commissioning time. By Ashok Upadhyay

In the present scenario, vacuum circuit breakers are used up to 33kV and SF6 circuit breakers from 66kV and above voltage class. They will...

Although several years ago, the European Commission banned the use of SF₆ gas in almost all sectors, only in switchgear industry it is still being used in a big way owing to the advantage that the gas ensures that any arcs that may occur during switching are quickly extinguished. However, the environmental impact of SF₆ gas is around 23,500 times more than that of CO₂ and once leaked it can remain in the atmosphere for up to 3,200 years. Thus, introduction of SF₆ alternatives should be given topmost priority today… - P. K. Chatterjee (PK)

As per the report; titled “Air Circuit Breaker Market by Voltage (Low-Voltage and Medium-Voltage), Type (Air Blast Circuit Breaker and Plain Air Circuit Breaker),...

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

Every megawatt of electricity from coal plants to solar farms to offshore wind passes through at least one switch before reaching homes, factories, or...

Mitsubishi Electric has launched a state-of-the-art LV power switchgear and control gear called METTA. Sumeet Sharma, Assistant General Manager, LV Switchgear-Project Dept. of Automation & Industrial Division, Mitsubishi Electric India Pvt. Ltd. is explaining the details of the product to P. K. Chatterjee (PK) online. Excerpts...

OMICRON’s PARADIMO 100 is a smart edge computing device for the continuous monitoring and trending of partial discharge (PD) activity in Gas-Insulated Switchgear (GIS)...

“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

ABB India has launched Formula DIN-Rail, a complete range of Miniature Circuit Breakers (MCBs), Residual Current Circuit Breakers (RCCBs) and Isolators for the electrical retail...

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…

Siemens Smart Infrastructure has signed a six-year framework agreement with Norgesnett to deliver SF6 gas-free switchgear in the form of the 8DJH 24 –...

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

Transformation of the electrical construction material industry, especially in the switchgear market is expected to drive the demand for sustainable switchgear products. The switchgear...