Monitoring the distribution system, not the process on it.
This is the electrical infrastructure view: switchgear, transformers, panels and the quality of the power moving through them. It is the discipline an electrical engineer or facility electrician cares about, and it asks different questions than a production manager does.
Capacity, quality and condition.
Electrical power monitoring answers three questions about the distribution system itself. How much capacity is left in this transformer, panel or feeder? Is the power arriving and being distributed cleanly? And is anything degrading in a way that will eventually fail?
None of these are visible from a utility bill, and most are invisible from a process control system, because the process only cares whether equipment ran. A motor that ran successfully on 4% voltage imbalance reports no fault, and shortens its own life doing it.
The measurements are also the evidence base for capital decisions. Adding a production line raises an immediate question about whether existing switchgear and transformers can carry it. Loading data over a full seasonal cycle answers that far better than a nameplate calculation.
We build monitoring systems. We are not a substitute for a licensed electrical contractor, an arc flash study or a professional engineer's stamp, and where a job needs one of those, we will tell you so.
What we measure on a distribution system.
From the service entrance down to individual branch circuits.
Service entrance & switchgear
The main measurement point: total load, demand, power factor and the reference every other reading is compared against.
Transformer loading
Actual loading against rating across a full seasonal cycle, which is the only honest basis for a capacity decision.
Panel & branch circuits
Multi circuit meters giving per breaker visibility without a separate instrument on every circuit.
Power quality
Voltage sags, swells, interruptions and transients, timestamped so they can be correlated with equipment faults.
Harmonics
Voltage and current THD, plus individual harmonic orders on capable meters. Non linear loads make this increasingly relevant.
Generator & backup systems
Load transfer verification, generator loading during test runs and confirmation that a system actually carries what it is supposed to.
Conditions worth alarming on.
The measurements where knowing early genuinely changes the outcome.
- Phase loss. The single most destructive condition for three phase equipment, and one that equipment itself may not report until damage is done.
- Voltage imbalance above 2%. Motor heating rises disproportionately; sustained imbalance is a slow motion failure.
- Transformer approaching rated load. Especially relevant before adding equipment or during unusual seasonal conditions.
- Neutral current exceeding phase current. Indicates triplen harmonics and a conductor that may be undersized for what it is actually carrying.
- Power factor falling below the utility threshold. Often the first sign of a failed correction capacitor.
- Repeated voltage sags. Correlate them against drive faults and the cause usually becomes obvious.
- Rising THD. A gradual trend that tends to accompany added variable frequency drives and LED lighting.
- Meter communication lost. Worth alarming explicitly, because a silent monitoring system looks exactly like a healthy one.
Answers before you call.
The measurements overlap heavily; the perspective differs. Industrial power monitoring is oriented around process loads and what production costs. Electrical power monitoring is oriented around the distribution system: capacity, power quality and equipment condition. Many facilities want both views from the same meters.
For diagnosing a specific, transient problem, a dedicated analyser is still the right tool. For ongoing monitoring, permanently installed meters with power quality capability give you something an analyser cannot: history from before the problem was noticed.
Often. Split core current transformers can be installed around existing conductors without breaking the circuit, though voltage references and meter power still require appropriate isolation. Any work inside energised switchgear should be planned with a qualified electrician.
For operational monitoring and trending, a standard class instrument is generally sufficient. For billing a tenant or settling a dispute with a utility, you need revenue grade metering, and the requirement is worth confirming for your jurisdiction before purchase.
Usually. Most meters that speak Modbus also speak BACnet, and where they do not, a gateway or an OPC UA link can bridge into an existing BMS rather than creating a parallel system.
How much capacity is left in your switchgear?
A season of loading data answers that better than any nameplate calculation.
Or call (801) 946-2710, Monday, Friday, 8:00am, 4:30pm MT