ABB Helps PLN to Implement Zero Downtime Initiative

ABB is deploying medium-voltage protection relays to Indonesia's state-owned power company, PLN, to support them in protecting the electrical system during disturbances.

This is part of Zero Downtime (ZDT) project, initiated by PLN, which aims to improve the reliability of the island nation's power supply, starting with a pilot in the Labuan Bajo resort, which will be hosting flagship events as part of this year's G20 summit which will focus on the sustainable energy transition.

The electrification rate in the East Nusa Tenggara (NTT) province where Labuan Bajo is located, is around 96.7 percent. There are still a large number of villages which are without electricity.

Addressing the area's power issues is essential, not only to keep the lights on during the G20 events being held in the area in September, but also to help local businesses and resorts become more competitive, as Labuan Bajo has been identified as one of the Indonesian government's five super-priority tourist destinations – an initiative which will help boost tourism in Indonesia.

To resolve the current power problems, PLN initiated a pilot scheme for business customers in NTT with peak power of more than 200 kVA.

Customers signing up to its Zero Downtime (ZDT) service are supplied by two or more feeder sources that operate in parallel. If one of the power sources experiences a problem, the alternative source will take over, so there is no break in service and power supply is guaranteed 24/7.

Agustinus Jatmiko, General Manager of PLN Regional Main Unit of NTT said "ZDT services require deployment of the latest technology when facing the new challenges with high complexity. To overcome these challenges, PLN is working together with various technology providers who have experience in this field so that the targeted level of supply reliability can be reached and constantly maintained, just like on the other strategic projects."

He also added that several advanced technical solutions are utilized and integrated within the electrical systems of the Super Priority Tourism Destination (DPSP) Labuan Bajo to prevent ZDT's premium customers from experiencing blackouts.

All system parts, starting from generating equipment, distribution, to protection of the electrical system, are considered to mitigate potential causes of blackouts.