Industry Visit: Oman Transmission Power Grid Station, Ibri

Eighteen (18) students along with two lecturers: Mr. V. Veera Nagi Reddy and Mr. N. Srinivasa Rao, and one Technician, Mr. Mohammed Abdullah Mohammed Al-Shammakhi, from the Electrical and Electronics Section visited Oman Transmission Power Grid Station in Ibri on 5th of December 2021, Sunday.  

In this substation, the Voltage is stepped down from 400 KV to 220 KV to 132 KV to 33 KV and to 11 KV.  Moreover, the 11 KV is further reduced to 415 V for substation lighting. 

The purpose of the visit was to provide exposure for the students through real time experiences on the working system of the Transmission Lines, Underground Cables, Insulators, Circuit Breakers, Busbars, Lightning Arresters, Current Transformers, Potential Transformers, and Power Transformers. 

After reaching the grid station, the Health and Safety Engineer explained the safety rules to be followed inside the station. Engineers from the Operation and Maintenance Wing of the substation gave a demonstration on: 

• The process on how the substation receives Electrical Power from the Generating Stations.
• The Control Room (which has Remote Control Panels for 375/500 MVA Transformers, 220 KV Relay Panels, and 220 KV Bus Coupler).
• The Gas-Insulated Substation (where SF6 Gas is used as insulation).
• 132 KV Power Cables in the cellar.
• The methods that they adopt to control Feeders, Transformers, and Busbars.
• The 500 MVA Power Transformer.
• The Battery Room (which consists of Battery Banks of 48 Volts).

This industrial visit was organized by the OJT & Industrial Link Committee of the Engineering Department.