ABB MNS iS The integrated solution for the WAGP project

Scope of supply

ABB S.p.A. (Italy), in cooperation with Lee Engineering &

Construction Co (Nigeria) and Franzisella S.p.A. (Italy), is

supplying a fully integrated solution for the WAGP (West

African Gas Pipeline) project in Nigeria.

The two WAGP Gas Compressor Stations in Utorogu and

Oben are based on the latest ABB MNS iS technology

installed into prefabricated E-houses.

The ABB MNS iS is the right solution to comply with the high

level of integration and compactness requested for the WAGP

Utorogu and Oben Gas Compressor Stations.

The ABB MNS iS Power and Motor Control Centers for the

WAGP project are fully integrated with the station DCS via

serial link (Profibus DP protocol) and are built in compliance

with Shell DEP standards.

Plant description

Pipelines are the most efficient way to distribute gas and

cover big distances especially in location with critical

environmental conditions like deserts, glaciers, high

mountains. To keep pressure and temperature of gas at the

right level, Gas Compressor Stations are present and placed

at 10 to 150 Km intervals along the pipeline. The low voltage

MCC is one of the most important and critical component of

those compressor stations.

The ABB intelligent MCC

The project includes four ABB MNS iS Power and Motor

Control Centers for a total of over 50 sections and 160

feeders in all kind of configurations, from the Direct On Line

starters to the highest version of the ABB softstarters. In

order to optimize the E-house layouts two of the ABB MNS iS

where provided in back to back configuration granting a more

efficient footprint.

MNS iS is the latest evolution of the ABB Low Voltage Power

and Motor Control Center: the “Intelligent switchgear”.

The MNS iS intelligence is guaranteed by the complete

integration and harmonization of all the different control,

protection and data processing functions into the MNS iS

concept.

The MNS iS network is based on distributed microprocessor

modules (MControl) connected through a serial gateway

interface (MLink) to a local Human System Interface (MView)

and to higher level systems.

- MControl: the microprocessor unit performs all the

protection control and monitoring functions and grants

connection to and from each single feeder or motor unit.

- MLink: the MNS iS interface module grants connectivity

from the local control modules to any higher system and

to the local Human System Interface.

- MView: a local Human System Interface based on touch

screen technology providing easy access to all kind of

data and control functions.

The use of the programmable microprocessor based

technology in conjunction with a strong focus on the design

optimization grant an overall reduction of the control and

power components with the advantage of reducing potential

point of failure and spare parts.

Results and customer’s benefits

As a result of all the integration and optimization activities,

the WAGP Utorogu and Oben Gas Compressor Stations were

delivered in prefabricated E-houses pretested and preset to

minimize the field installation and start-up activities.