Voltage Dip 05/05/2026 12:14PM

During lunchtime today, a shallow dip was recorded at my home’s PQUBE3 (+ PQ-Box 50) and at a shopping mall in Jurong East.

Considering that it takes at least an 8-minute drive from my home to the mall, it was probably a 3-phase transmission level fault (i.e home and mall do not share the same 22kV distribution network).

Or a high magnitude fault in an adjacent 22kV network to the mall and my home (connected via the 66kV network path).

Home’s PQUBE3
PQ-Box 50 (under test – in home office)
Voltage Trend at a Mall’s Riser (via Dranetz EP1)