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Apex Power DistributionApexPower.ai

Machine intelligence for power systems

Engineering decision support — not autopilot

Combine breaker, relay, meter and sensor data to identify abnormal equipment behavior before it becomes an outage. Four applications, each with a clear input, a clear output and a human decision at the end.

Machine-learning analytics support engineering and maintenance decisions. Protective functions and switching operations remain governed by approved protection, control and safety procedures.

Four applications

What the models look at, and what they hand back

01

Predictive maintenance

Move from calendar-based to condition- and prediction-based maintenance for breakers and switchgear.

Analyzes

  • · Breaker operations and interrupted current
  • · Maintenance history
  • · Compartment and stab temperatures
  • · Mechanism timing (open/close, charging)
  • · Environment (humidity, ambient)
  • · Trip events and causes

Output

Ranked maintenance recommendations with the evidence behind each one, and a confidence level tied to the size of the data record.

02

Thermal anomaly detection

Detect unusual heating before it becomes an insulation failure or a bus fault.

Analyzes

  • · Bus joints
  • · Cable connections and terminations
  • · Breaker stabs and contacts
  • · Transformer windings
  • · Load and ambient for normalization

Output

Phase-to-phase and load-normalized ΔT with trend rate; alarms explain why (loose joint signature vs. load-driven heating).

03

Power quality intelligence

Turn meter waveforms and events into causes and consequences.

Analyzes

  • · Harmonics (THD, TDD, individual orders)
  • · Voltage and current profiles
  • · Demand and load trends
  • · Sags, swells, interruptions and transients
  • · Event correlation across meters

Output

Which loads drive distortion, whether limits at the point of common coupling are at risk, and what changed after a mitigation.

04

Asset health

One defensible number per asset, built from evidence a maintenance planner can inspect.

Analyzes

  • · Inspection data
  • · Operating history
  • · Sensor data
  • · Alarms
  • · Maintenance records
  • · Equipment age

Output

Health score with contributing factors, status and the next recommended action — e.g., Asset Health 87/100, Healthy — Monitor breaker operating time trend.

Worked example

One LV main, three views of its condition

Demonstration — simulated values

52-LM1 from the demonstration system: a slow opening-time trend, a bus-joint thermal anomaly on its bus, and the harmonic spectrum at its meter.

Breaker opening time — 52-LM1ms
Breaker opening time — 52-LM1: Opening time from 32 to 38 ms2530354045Manufacturer band 28–40 msInvestigate above 40 msM-23M-19M-15M-11M-7M-3Now

Trend from timed operations over 24 months. Still inside the band; rate suggests lubrication at the next planned outage. Confidence: medium (14 records).

Breaker opening time — 52-LM1
PeriodOpening time
M-2332
M-2132
M-1933
M-1733
M-1533
M-1334
M-1134
M-935
M-735
M-536
M-337
M-137
Now38
LV Bus 1 joint temperature (L1–L2), load-normalized°C
LV Bus 1 joint temperature (L1–L2), load-normalized: Phase A from 50 to 83 °C; Phase B from 49 to 56 °C; Phase C from 48 to 55 °C405060708090Alarm: ΔT vs. other phases > 20 °CD-13D-11D-9D-7D-5D-3D-1D-0Phase APhase BPhase C
  • Phase A
  • Phase B
  • Phase C

A single phase rising while B and C track load and ambient is the signature of a degraded connection, not a load change. Recommendation: de-energized inspection and torque check at the next window.

LV Bus 1 joint temperature (L1–L2), load-normalized
PeriodPhase APhase BPhase C
D-13504948
D-12515049
D-11525050
D-10545150
D-9565151
D-8585251
D-7615252
D-6645352
D-5675353
D-4705453
D-3745454
D-2775554
D-1805555
D-0835655
Current harmonic spectrum at 52-LM1% of fundamental
Current harmonic spectrum at 52-LM10.01.32.64.05.3Planning limit (example)35791113151719212325

5th and 7th dominate — consistent with six-pulse drives on Mechanical MCC A. Compare against the IEEE 519 limits that apply at the point of common coupling for this service.

Current harmonic spectrum at 52-LM1
30.9
54.6
73.1
90.4
112.2
131.4
150.2
170.9
190.7
210.1
230.5
250.4

How this stays safe

  • · Analytics read from the historian and sensor gateway — never from the protection network directly.
  • · Outputs are recommendations, tickets and dashboards. No analytics path can command a breaker.
  • · Every score shows its evidence and confidence so an engineer can disagree with it.
  • · Baselines are set per asset from commissioning data, then adjusted with the customer's maintenance team.

Asset health

87 / 100 — and where every point came from

Asset health — 52-LM1 LV Main 1

87/ 100
Healthy

Healthy — Monitor breaker operating time trend

The score combines weighted evidence from six sources. It is a prioritization aid for the maintenance planner — it does not change protection settings or operate equipment.

Contributing factors (illustrative)

  • Inspection dataLast NETA-style inspection 14 months ago; no findings18/20
  • Operating history2,118 operations; 3 fault interruptions lifetime17/20
  • Sensor dataStab temperature ΔT normal; opening time 38 ms (baseline 32 ms)20/25
  • Alarms0 alarms / 30 days; 1 advisory (timing trend)9/10
  • MaintenanceLubrication overdue by 4 months per time-based plan12/15
  • Equipment age9 years in service (design life 30+)11/10

Weights and scoring are configured per asset class and site. Confidence is reported alongside the score when the data record is thin.

Apex Power Distribution · ApexPower.ai

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