Alarms

Current draw 78A persisted for 98 minutes on a 63A-rated skid feed. Pattern matches a compressor failing to reach run speed and short-cycling. 7 similar events at this plot in last 60 days.

Sustained earth leakage current 64mA detected on the switchroom main. Tier-1 local breaker tripped within 38ms. Feed isolated pending field check.

sensor SS-JURONG-ISLAND-011 consistently sees voltage < 198V between 19:00-21:00. Recommend feeder review.

Burner circuit terminal heating up at sensor SS-TUAS-005; suggests loose connection.

Current draw 92A on an 80A-rated process feed at sensor SS-WOODLANDS-009. Tier-1 rate-limit engaged.

sensor SS-CHANGI-BP-012 consistently sees voltage < 198V between 19:00-21:00. Recommend feeder review.

Boiler-room burner & feedwater pump circuit reached 118°C, threshold 80°C. Tier-1 rate-limit engaged. Field unit dispatched.

Pattern matches a compressor short-cycling at sensor SS-JURONG-ISLAND-019. Below trip threshold.

Brief overvoltage at sensor SS-TUAS-012, likely solar export peak. Within tolerance but logged.

Busbar joint temperature elevated at sensor SS-WOODLANDS-021. Recommend torque check or thermography.

Pattern matches a compressor short-cycling at sensor SS-CHANGI-BP-020. Below trip threshold.

AFCI flagged signature event on a wafer-fab utilities feed. Feed auto-isolated within 42ms. Field crew confirmed degraded insulation in an MCCB; replaced.

Off-hour 96A draw on a feed rated 80A. Repeat pattern across 3 nights; voltage drop on the neighbouring monitored plot suggests an illegal tap.

Current draw 92A on an 80A-rated process feed at sensor SS-JURONG-ISLAND-024. Tier-1 rate-limit engaged.

Repeated pump startup spikes at sensor SS-TUAS-022 suggest a failing motor.

sensor SS-WOODLANDS-030 consistently sees voltage < 198V between 19:00-21:00. Recommend feeder review.

Busbar joint temperature elevated at sensor SS-JURONG-ISLAND-033. Recommend torque check or thermography.

Leakage current trending up; 18mA sustained 4 min. Below trip threshold but recommend inspection at sensor SS-TUAS-038.

Pattern matches a compressor short-cycling at sensor SS-WOODLANDS-042. Below trip threshold.

Process-motor circuit hit 188A (rated 160A). Tier-1 trip engaged. Plant adjusted load sequencing; restored.

sensor SS-JURONG-ISLAND-041 consistently sees voltage < 198V between 19:00-21:00. Recommend feeder review.

Burner circuit terminal heating up at sensor SS-TUAS-047; suggests loose connection.

Pattern matches a compressor short-cycling at sensor SS-JURONG-ISLAND-058. Below trip threshold.

Current draw 92A on an 80A-rated process feed at sensor SS-JURONG-ISLAND-065. Tier-1 rate-limit engaged.

Voltage 244V (1.061 pu) for 18 min. Auto-resolved when feeder tap-changer kicked in.