Improving Network Protection Reliability with Medium Voltage Cutout Fuses

A utility company from Thailand was experiencing frequent transformer failures caused by temporary faults and overload conditions on its distribution network. The existing protection devices could not isolate faults quickly enough, resulting in costly equipment damage and prolonged power outages.

To address this issue, we supplied our medium-voltage cutout fuses with optimized time-current characteristics and reliable fault interruption capability.

As a result, faulted transformers were isolated rapidly before severe damage could occur, significantly reducing maintenance costs and improving overall network reliability. The utility also reported shorter outage durations and improved service continuity for end users.