Consultancy on Power System Dynamic Stability Studies and Associated Works at TCN

TRANSMISSION COMPANY OF NIGERIA (TCN)

PUBLIC NOTICE

EXPRESSION OF INTEREST (EOI) FOR CONSULTANCY ON POWER SYSTEM DYNAMIC STABILITY STUDIES AND ASSOCIATED WORKS

INTRODUCTION

The Management of Transmission Company of Nigeria (TCN) hereby invites eligible consultants to indicate their interest in providing consultancy services as indicated under the scope of works.

SCOPE OF WORKS

The Consultant’s scope of works includes, but is not necessarily limited to the following:

1. Technical audit and collation of (I) existing generator controllers in the system, determination of requirements of generating unit governor at each power station. (ii) 330/132k V, 132/33kVand33/11kV transformers and substation switchgears specifying their functional status.

1. Perform toad flow (losses, compensation, voltage control and voltage collapse studies), short circuit studies to determine maximum symmetrical and asymmetrical fault levels at 330kV, 1 32kV,33kV and 11 kV bus bars and Transient Stability Studies; NEPLAN Power System Analysis Tool must be used.

1. Determine the minimum MW primary control power to secure the network for various network configurations corresponding to the following load levels: 6000MW, 10000MW, 15000MW and 20000MW.

1. Advise on distribution of the required primary control power among the Generating Units, to ensure system frequency stability for each of the load level.

1. Determine the suitability of existing switchgears at 330k V, 132kV and 33/11kV levels in terms of their Break and Make capacities and recommend appropriate break ratings at 33OKV, 132kV and 33/11kV voltage at various locations in the grid.

1. Determine the Earth Resistance values and the integrity of earthing arrangement at various locations in the system with a view to recommending ways of improving them.

1. Review existing settings of protection relays and effectively set the relays where necessary to conform to the established fault levels taking into consideration the short circuit withstand capability of major equipment like transformers.

1. Carryout functional tests on all existing protection relay and recalibrate where necessary and identify faulty relays for replacement.

1. Co-ordinate effectively, protection relays at the various substations In the grid to ensure discriminatory tripping.

1. Determine the adequacy, or otherwise, of the entire protection system and establish a protection philosophy for the Grid System.

1. Provide drawings for all the protection schemes for the entire system (330/132kV, 132/33kV and 33/11 k) and detailed documentations

1. Establish an overall encompassing System Data Web Based Portal.

1. Determine the best options in the deployments and proffer solutions for the attainment of adequate infrastructure for EMS and SCADA.

PRE-QUALIFICATION REQUISITES

Interested firms/consultants must provide the following information:

1. That they are qualified to perform the services (through submission of brochures, description of similar assignments, experience in similar conditions, availability of appropriate skills among staff etc) and must have had at least ten (10) years experience in similar works. Consultants may associate to enhance their qualifications.

1. Certified Audited Account and Tax Clearance of the Company for the last three(3) years, certified by registered accounting firm along with the corresponding 3 years Tax Clearance Certificate (applicable to Nigeria Company only) which shall be verified and the original sighted on demand.

1. A copy of Certificate of Incorporation in Nigeria (Forms CO2 and CO7) or overseas.

1. Provision of Company Profile, experience records procedure of Quality Assurance / Quality Management System to be implemented.

1. Evidence of Technical Capability and Previous experience in Nigeria or developing countries.

1. Consultancy experience record for Power System Analysis and relay coordination / SCADA and related projects.

1. Submit evidence(s) of compliance with the provisions of the Pension Reform Act, 2004.

1. Nigerian companies must be registered with COREN,

IMPORTANT INFORMATION:

1)    This notice is not an Invitation to tender.

2)    PHCN Tender Board is not obligated to invite any company to submit proposal notwithstanding submission of EOI documents.

3)    Only technically qualified companies will be invited to participate in the competitive tender for the consultancy works.

4)    PHCN reserves the right to verify any claim by companies. Therefore, companies should include in their submission, necessary authority and guarantee for such verification.

5)    Details of your referenced clients including their name, address, e-mail address and telephone numbers of the relevant contact person shall be Included for each job referenced.

6)    A Firm/Consultant will be selected in accordance with the Procedures set out in the Procurement Act 2007.

SUBMISSION OF EXPRESSION INIEREST

The documents for the EOI should be in a sealed envelope and marked “POWER SYSTEM DYNAMIC STABILITY STUDIES” on the left hand corner of the envelope and submitted to the Office of:

The Asst General Manager (Procurement), TCN,

Room 228/230, PHCN/TCN Corporate Headquarters,

Plot 441, Zambezi Crescent, Martama, Abuja,

Tel: +2348055027497.

On or before 12 noon, on Monday, 31^st May 2010.

For further information and/or clarification, please contact the Asst General Manager (PSPD), TCN, PHCN Corporate Headquarters, Zambezi Crescent Maitama, Abuja.

Tel:       +2348033119096, +2348052502117

e-mail: atatikut@yahoo.co.uk , oluwafemizaccheaus@gmail.com , atonack@yahoo.co.uk

Signed:

Management

Transmission Company of Nigeria (TCN)

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