Gouk & Sullivan (BOP) Limited for Armature Winding and Electrical Engineering - Kawerau - New Zealand.


Kumara Static Excitation Project Testimonial

From: Rodger Griffiiths

Sent: Monday, 15 August 2011 3:10 p.m.

To: steve@goukbop.co.nz

Subject: Kumara Static Excitation Project


I would like to formally express my appreciation for the wonderful effort that you and the Gouk and Sullivan team put into the recent Kumara exciter project.

The overall project included the installation of a reconfigured excitation transformer, new low voltage cabling, the procurement and installation of the aftermarket Basler static exciter (which was subsequently upgraded from a nameplate rating of 180 A to 430 A with the installation of a new power bridge), the installation of new slip rings and brush gear and the final commissioning of the complete new system. The machine was permanently converted from brushless excitation to full static excitation as a result of this work.

The new static exciter was successfully commissioned and Kumara Power Station returned to service at 11:20 a.m. on Saturday, 13 August 2011. The station has been running continuously since that time, only 11 days after the balloon went up for the project and this is truly amazing by any standard.

This static exciter operated flawlessly and we ran it up to 390 A during testing without any issue.

I have attached some photos of the new slip rings and brushgear for your interest.

ElectroNet appreciated your expert help in recommending a slip ring and brushgear solution and then designing, manufacturing and installing the solution, which made it so much easier to bring this project to a successful conclusion. It was also very pleasing to see you making the sacrifice of cancelling your ferry trip home in order to confirm that everything was running well prior to leaving the site.

We look forward to the opportunity of working with you again in the future and would be happy to provide a testimonial to the wonderful work carried out on the Kumara project if this would be helpful to you. Moreover, we would be happy to provide a glowing reference to any new customers that might be considering using you in this neck of the woods.

Thank you kindly for going the extra mile for us!


Rodger Griffiths

General Manager - Assets & Engineering Services

Westpower Ltd/ElectroNet Services Ltd.