KHIA headerKnow-How in Action

VOL XXXII, NO 112

Belzona® Repairs Oil Leaks On Wind Farm Transformer

 
 

Industry:

Power (POWR)

 
 

Application:

Gaskets, Seals and Shims (GSS)

 
 

Customer Location:

Ireland

 
 

Application Date:

September 2017

 
 

Application Situation:

Transformer for a wind farm was leaking oil through the main flange and flange bolt holes. Approxiately 120 bolts were leaking.

 
 

Problem:

The transformer was leaking oil and required a fix which could be carried out within a short outage (5 days).

 
 

Products:

Belzona 1161 (Super UW-Metal)

Belzona 5811 (Immersion Grade)

 

Substrate:

Mild Steel

 
 

Application Method:

Application was carried out in accordance with a modified version of Belzona Know-How System Leaflet GSS-8. Stainless steel caps were fabricated to fit over the bolt heads and the nuts. The gap in between the transformer body and the top cover was filled with Belzona 1161. The caps were filled with Belzona 1161 and clamped onto the bolt heads and nuts. The repair was coated with Belzona 5811

 
 

Belzona Facts:

The alternative to the Belzona repair was a cover lift of the transformer and fitting a new gasket. This would have taken several weeks and would have come at a much higher cost. The Belzona solution was completed in 5 days.

 
 

Photographs Description

1. General view of the transformer

2. Leaking oil on the flange

3. Flange face filled with Belzona 1161 and caps installed

4. Completed section

 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com