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The Kaduna Regional Office of the Transmission Company of Nigeria (TCN) is located along Kaduna Airport Road, in the Mando area of Kaduna Metropolis. The Region covers Kaduna, Zamfara, and Kebbi states, and a part of Niamey in Niger Republic.

The Kaduna Region is made up of Kaduna Sub-Region, Birnin Kebbi Sub-Region, and Gusau Work Centre. The substations in the Region include the 330/132/33kV Kaduna Substation, 132/33kV Kaduna Town Substation, 132/33kV Zaria Substation, 330/132/33kV Birnin Kebbi Substation, 132/33kV Sokoto Substation, 132/33kV Funtua Substation, and 132/33kV Talata-Mafara Substation.

In 1973, the 330/132/33kV Kaduna Substation was upgraded with a 150MVA 330/132/22kV transformer. In 1983, another 150MVA 330/132/22kV, was commissioned at the 330/132/33kV Mando Substation in Kaduna. Again, in 2010, a 90MVA 330/132/33kV was installed at the Mando Substation. Furthermore, in 2010, a 150 MVA 330/132/33kV transformer was also commissioned at the Mando 330/132/33kV Substation in Kaduna by the then-President Goodluck Ebele Jonathan, GCFR. These upgrades brought the transformer capacity of the Region to 540MVA.

With the growing population and increasing demand for power supply in Kaduna State and environs, a 150MVA 330/132/33kV transformer was installed in 2018 under the administration of President Muhammadu Buhari, GCFR, to bring the total capacity of the Mando Transmission substation to 690MVA.

After the Kano Sub-Region was upgraded and given a regional status, the Birnin Kebbi Sub-Region was merged with the Kaduna Region, bringing the total capacity of the Region to 1020MVA. The Birnin Kebbi Sub-Region has two 90 MVA 330/132/33kV transformers, installed in 1976 and 2006 respectively, while a 50MVA 132/33kV transformer was added to the substation in 2013.

Kaduna Region interfaces largely with Kaduna Electricity Distribution Company (KAEDCO), and also with the Kano Electricity Distribution Company (KEDCO) through the 132/33kV Funtua Substation.

The Kaduna Region is jointly managed by the Regional Transmission Manager, Aminu Haruna under the Transmission Service Provider (TSP) Unit and Regional Operations Manager, Akanle. S. Olusola under the Independent System Operators (ISO) Unit of TCN. The Region has a combined staff strength of two hundred and seventy-two (272) persons.

Transmission installations including substations, towers, and lines in the Kaduna Region have undergone a series of upgrades to meet the ever-increasing demand of the rapidly growing population of Kaduna, Zamfara, and Kebbi states.

Projects

TCN has completed a number of projects in the Kaduna Region recently. These include:

- The reconductoring of 132kV double circuit Mando-Kaduna Town T/S to increase its wheeling capacity from 120MW to 240MW.

- Installation of 2x60MVA, 132/33kV transformer and associated three feeders in Power Station, Kakuri, Kaduna State.

- Installation of 150MVA, 330/132/33kV transformer in 330/132/33kV Kaduna Sub-Station in Mando, Kaduna State.

- Installation of 1x60MVA, 132/33kV transformer and associated three feeders at the Zaria 132/33kV Sub-Station, Kaduna State.

- Installation of 1x60MVA, 132/33kV transformer in 132/33kV Sub-Station in Gusau, Zamfara State.

- Installation of 1x60MVA, 132/33kV transformer in Funtua Sub-Station, Katsina State.

- Installation of 1x40MVA, 132/33kV transformer in Zaria Sub-Station, Kaduna State.

TCN has a lot of projects that are still ongoing in the Kaduna Region to boost wheeling capacity. These projects include:



Encroachment

There are several cases of encroachment on transmission lines Right of Way (RoW) in areas such as Barakallahu, Rigasa, and many other communities within the Region. This has continued despite several meetings with community leaders to draw attention to the inherent dangers of erecting structures under high tension power lines.

Most of the culprits claim to be the owners of the land while others simply say that they have nowhere else to go. This is in spite of the fact that community leaders and original landowners were adequately compensated before the erection of transmission structures on the affected areas.

In-House Capacity

TCN engineers in Kaduna Region have installed/repaired several transformers in the Region. Some of the recent installations include the 60MVA 132/33kV transformer in Gusau Substation, Zamfara State, installation of a 60 MVA  132/33kV transformer in Funtua Sub-Station, Katsina State, installation of 40MVA 132/33kV transformer in Zaria Sub-Station, Kaduna State, among others.

Other jobs carried out by the Region are:
-    Replacement of shattered 330kV Shiroro 1 red phase Circuit Breaker, installation of 110Volt and 50Volt direct current battery banks, resuscitation of burnt 60MVA 132/33kV transformer, and Installation of 132kV Current Transformer on 60MVA 132/33kV transformer at Mando Substation, Kaduna.
-    Replacement of 33kV Circuit Breaker on 33kV Hanwa feeder, and installation of a new set of 33kV Voltage Transformer on 40MVA 132/33kV transformer at Zaria Substation, Zaria. Also, installation of a new protection and control panel for 60 MVA 132/33kV transformer at Kaduna Town Substation. Transfer of protection from old to the new control room at Gusau.
-    Installation of 110volt Direct Current battery bank at the power station and installation of 132kV Circuit Breaker on 150MVA 330/132kV transformer at Birnin Kebbi Substation, among others.

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