|By PR Newswire||
|August 11, 2014 10:08 AM EDT||
ST. JOHNSBURY, Vt., Aug. 11, 2014 /PRNewswire/ -- On June 1st and in advance of the World Cup, four critical transformers that service one of the main World Cup stadiums (Arena Sao Paulo) located in the Sao Paulo east area were outfitted with WEIDMANN InsuLogix® H on-line hydrogen detection system. The four devices will be continuously monitored by MGM who is a local electrical service company to be sure the critical transformers are running properly and to help prevent any electrical outage.
AES Electropaulo who is the local utility was approached by ANEEL (Brazil's Electrical Agency) to present a mitigation plan to better guarantee electrical supply during the World Cup including the performance of the transformers servicing the main stadium. AES promptly solicited the support of MGM who in a partnership with WEIDMANN developed a plan utilizing WEIDMANN's state of the art InsuLogix® H monitoring device to be installed and monitored continuously by MGM throughout the games.
Hydrogen gas is generated inside an operating transformer as a result of insulation breakdown caused by thermal degradation. The WEIDMANN InsuLogix® H is specifically designed to report both the concentration and rate of increase of hydrogen gas. Because hydrogen is generated from low to high temperatures, it is the ideal single gas to monitor as an early warning indicator of faults that could lead to outages and ultimately catastrophic failures.
Transformers are critical to uninterrupted supply of electricity and in the event of failure are not easily repaired or replaced. Recognizing this, AES with the help of MGM has proactively tested the InsuLogix® H on a critical substation in Sao Paulo. That experience only served to enhance their trust in the reliability of the device and the ability of MGM to continuously monitor the transformers.
The transformers involved are three units from COEMSA (40/60MVA 88/13kV) and one from Siemens/TUSA (40/60MVA 88/13kV). According to AES Electropaulo the WEIDMANN InsuLogix® H is performing very well as expected and this success can be replicated in other substation transformers that are classified as high risk.
The WICOR (WEIDMANN International Corp) Group develops, produces, and distributes high-voltage insulation materials and components as well as sophisticated diagnostics, oil testing services, and sensors and monitors for transformers (Business Area Electrical Technology), and sophisticated injection molded plastics applications for medical technology customers (Business Area Plastics Technology). The WICOR Group is active worldwide in more than 40 locations and employs a staff of 3,600. The headquarters of the WICOR Group is in Rapperswil-Jona, Switzerland. www.weidmann-electrical.com
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