node_id,timestamp_iso8601,voltage_v,current_a,active_power_kw,reactive_power_kvar,frequency_hz,ambient_temp_c,humidity_pct,anomaly_detected,event_type
GRID_TX_01,2025-11-20T18:00:00Z,230.5,45.2,10.1,1.2,50.02,18.5,42,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:05:00Z,230.1,46.8,10.4,1.3,50.01,18.4,42,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:10:00Z,228.4,85.5,18.2,4.5,49.95,18.2,43,TRUE,Sudden_Load_Spike
GRID_TX_01,2025-11-20T18:15:00Z,229.8,44.9,10.0,1.1,50.00,18.1,43,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:00:00Z,231.2,12.5,2.8,0.4,50.01,22.4,55,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:05:00Z,231.0,12.8,2.9,0.4,50.02,22.5,55,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:10:00Z,231.1,12.2,2.7,0.3,50.01,22.6,56,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:00:00Z,225.2,150.4,32.5,8.2,49.88,15.4,68,TRUE,Voltage_Sag
GRID_TX_03,2025-11-20T18:05:00Z,226.5,148.2,31.8,7.9,49.92,15.5,68,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:20:00Z,230.4,45.5,10.2,1.2,50.01,17.9,44,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:25:00Z,230.6,44.8,10.0,1.1,50.03,17.8,44,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:15:00Z,231.4,13.1,3.0,0.5,50.00,22.8,57,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:20:00Z,245.5,10.5,2.5,0.2,50.15,22.9,57,TRUE,Overvoltage_Transient
GRID_TX_02,2025-11-20T18:25:00Z,231.2,12.4,2.8,0.4,50.02,23.0,58,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:10:00Z,227.1,145.1,31.2,7.5,49.94,15.8,69,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:15:00Z,227.5,144.8,31.1,7.4,49.96,15.9,69,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:20:00Z,227.8,143.5,30.9,7.2,49.98,16.0,70,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:30:00Z,230.5,46.1,10.3,1.2,50.01,17.5,45,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:35:00Z,230.3,45.8,10.2,1.2,50.02,17.4,45,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:40:00Z,230.2,47.2,10.5,1.4,50.00,17.3,46,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:30:00Z,231.0,12.8,2.9,0.4,50.01,23.1,59,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:35:00Z,231.1,13.2,3.1,0.5,50.02,23.3,59,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:40:00Z,231.3,12.9,3.0,0.4,50.01,23.5,60,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:25:00Z,210.5,175.8,35.2,12.4,49.72,16.2,71,TRUE,Critical_Undercurrent
GRID_TX_03,2025-11-20T18:30:00Z,226.4,149.2,32.1,8.1,49.90,16.3,72,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:35:00Z,227.1,147.5,31.5,7.8,49.93,16.5,72,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:45:00Z,230.4,45.9,10.3,1.2,50.01,17.1,47,FALSE,Normal_Operation
GRID_TX_02,2025-11-20T18:45:00Z,231.4,13.5,3.2,0.6,50.03,23.8,61,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:40:00Z,227.5,146.1,31.2,7.6,49.95,16.8,73,FALSE,Normal_Operation
GRID_TX_03,2025-11-20T18:45:00Z,227.9,145.4,31.0,7.4,49.98,17.0,74,FALSE,Normal_Operation
GRID_TX_01,2025-11-20T18:50:00Z,230.1,46.5,10.4,1.3,50.01,17.0,48,FALSE,Normal_Operation