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Hivelm makes India's first 1,200kV isolator

Em News Bureau ,  Thursday, September 13, 2012, 17:02 Hrs  [IST]

Hivelm Industries, based in Chennai, recently shipped its patented 1,200kV isolator to Power Grid Corporation of India. This ultra high voltage isolator will be employed at PGCIL's 1,200kV test station at Bina in Madhya Pradesh.

Speaking from Chennai to Electrical Monitor over phone, a senior Hivelm official said that the isolator was developed indigenously by the company, without any external technical collaboration. "It is a 100 per cent Indian product," he noted. It is learnt that Hivelm spent around Rs.4 crore on R&D activities related to the isolator.

Elaborating on the product, the Hivelm official said that while the first isolator would be deployed at the Bina test bay, another similar isolator will also be supplied over the next three months. Recalling the early days of the product development, the official said that when talks for the 1,200kV were in progress, there were no readymade standards available because an isolator of this rating never existed in any part of the world. Hivelm undertook the complete activity from design to production.

It may be mentioned that Hivelm also has to its credit pioneering work on 400kV isolators. The Chennai based outfit had supplied three different types of 400kV isolators as early as 1976. Isolators are devices that completely de-energise a circuit and are mainly used during repair and maintenance of downstream equipment.

Bina test station: PGCIL, in partnership with around 35 Indian companies, has embarked on building a 1,200kV power transmission test station at Bina in Madhya Pradesh. This pilot project will set the future for 1,200kV power transmission at the commercial level. By current thinking, this will be the highest voltage level of power transmission, AC or DC, deployed anywhere in the world. US, Japan, China, Ukraine, Italy and Russia have made progress in establishing ultra high voltage AC power transmission systems. It is reliably learnt that China was recently successful in establishing a 1,100kV UHVAC commercial power transmission system.
 
                 
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