MV Protection and Control Divisional News – Medupi Generator Protection

Medupi Generator Protection


Medupi generator protection contract won by local specialists

Local protection systems specialists ACTOM Protection & Control (P&C) (formerly Alstom Protection & Control) has won the prized protection equipment contract for the turbine generators for Medupi power station.

Alstom Power, the international company responsible for the turbines for both Medupi and Kusile, Eskom’s two new six-pack coal-fired power stations currently under construction, awarded the R18m turnkey contract to P&C in July 2009.

The contract encompasses system, protection and automation design, interface design, detailed engineering, manufacture, testing, supply, factory acceptance testing and commissioning of the generator protection equipment.

The protection equipment comprises customised protection, control and recording systems for the generator, generator transformer, auxiliary supply transformer and associated circuit breakers of each of the six 800 MW generator units.

“The system is highly complex, since it will function in a dual redundant mode in its application on real time and critical power system components,” commented Brian van Rensburg, P&C’s Business Development Manager.

“As expected, we faced very stiff competition from other contenders. Our bids were competitive and we offered state-of-the-art solutions that fully meet the requirements. In addition, our track record in this field, particularly our experience gained on the Grootvlei and Komati power station protection contracts which we were awarded by Eskom in 2006, as well as the collective team effort at ACTOM, counted in our favour in winning the new contract.”

The protection relays and the disturbance recorders are being manufactured and supplied by P&C’s international technology partner and principal, Areva T&D, while the HMI interface equipment is being supplied and configured locally.

The first delivery on the contract, comprising all the protection equipment for Medupi’s Unit 6, will be made in April this year. The full contract is due for completion at the end of 2011.

Van Rensburg pointed out that the generator protection equipment includes automatic synchronising, as well as fault recorder and generator transformer protection and control equipment.

“In addition, the communication system supplied as part of the total scheme is certified to IEC 61850, the latest international communication standard, which guarantees the highest possible flexibility and interoperability currently available worldwide, with one of the main benefits being an ability to accommodate modifications without any changes in hardware,” he said.

ACTOM (Pty) Ltd is a black empowered electrical engineering company that employs over 6 000 people and has an annual order intake in excess of R5bn. It has 27 operating units, 22 production facilities and 25 distribution centres throughout South Africa.

ACTOM partners Alstom France for environmental equipment and in serving the maintenance, upgrade and retrofit market for larger boilers, as well as for railway transport activities.

ACTOM holds exclusive distribution, technology and representation rights for Areva T&D in Southern Africa and maintains management, technical and commercial links to Areva T&D business units in Europe.

ACTOM formerly traded under the name Alstom South Africa and re-branded to ACTOM in September 2009.

For further information contact Martin Kelly, ACTOM Protection & Control
PO Box 13024, Knights 1413
Tel (011) 820-5319 Fax (011) 820-5323

Date:  February 23, 2010

Caption:  The first set of generator protection panels to be supplied by ACTOM Protection & Control as part of the R18m protection equipment contract for Medupi power station is inspected at the company’s Knights, Germiston, plant by Brian van Rensburg (right), Business Development Manager, and Job Mkhatshwa, Test Technician.