Electrical Watch

Equipment fails slowly first, and the current shows it.

A motor that will stop in a month is drawing more today than it did last month. With a meter on the circuit that is a line climbing on a chart, weeks before it is a failure. We keep meters on the boards your facility cannot run without, and an engineer reads every alert before it reaches you.

DeterminationSpecimen

Electrical Watch, Theatre Board

10 weeks watched, every critical circuit
AHU-2 supply fan, week 1
13.8 A
Week 6
16.5 A against 15 A
The alert

A worn bearing. The current rises while the airflow setpoint has not changed. Change the fan bearing within two weeks, outside theatre hours. No urgency tonight.

Checked by an engineer before it reached the dispatcher

How a Failure Shows Before It Happens

Most electrical failures are mechanical first. Something wears, the motor works harder to do the same job, and the current rises long before anything stops.

NAMEPLATE 15 AALERT AT 15.8 AWeek 6: the alertBEARING CHANGED, WEEK 8UNWATCHEDW1W2W3W4W5W6W7W8W9W10THE SUPPLY FAN, RUNNING, WEEK BY WEEK, IN AMPS

Westbrook Clinic, the specimen clinic in the scrolled story: Day surgery, imaging and a vaccine cold chain. The supply fan on the theatre board, 10 weeks.

A line that should be flat

The supply fan ran at 13.8 A for weeks, against 15 A on its nameplate. Then it climbed. In week 6 it crossed 15.8 A, and because the pattern is a known one, the alert named a worn bearing and gave the clinic 2 weeks to change it outside theatre hours.

Changed in week 8, the fan is back at 13.9 A and still watched. Unwatched, it would have reached 20.8 A by week 10, on its way to a failure during a list.

What We Watch For

The signs that show in current and voltage at the board. Each one is a fault we have seen before, so an alert can name what it is likely to be.

Current climbing on a steady load

A fan or pump whose setpoint has not changed and whose current rises week on week is working harder for the same output. A bearing, a belt or a blocked filter, found before it stops.

A start that takes longer

A compressor or motor whose start draw lasts longer each week is wearing, and a longer start is also what trips a breaker. The two faults are often the same one.

Phases drifting apart

Three phases that read the same for months and then do not. A loose termination or a failing winding shows here first, as heat on one phase before anything is seen or smelled.

What an Alert Says

One message, after an engineer has read the data. It names the board, the circuit and the likely cause, and says how urgent it is, so your dispatcher knows what to send and when.

Where

Theatres and air handling. Ckt 4, theatre board, AHU-2 supply fan.

What it is reading

Running at 16.5 A against 15 A on the nameplate, climbing for three weeks. A worn bearing. The current rises while the airflow setpoint has not changed.

What to do

Change the fan bearing within two weeks, outside theatre hours. No urgency tonight.

What You Receive

  1. The boards, written down

    The critical boards and every circuit on them, with why each one is on the list.

    3 boards at the specimen clinic
  2. Each alert

    The board, the circuit, the reading against its history, the likely cause and what to do about it, in one message.

    An engineer on every one
  3. A condition report every quarter

    Every board watched, what changed, what was found and what was repaired, read at the circuit.

    Every quarter

A board with a fault today starts with a Fault Study; Electrical Watch keeps watching after it.

What It Needs

A panel record for the critical boards and a meter on each circuit that matters, fitted by a licensed electrician and left in place. A few weeks of readings before an alert can mean anything, because a circuit is judged against its own history.

It watches for what shows in current and voltage. A fault that shows in none of them, such as a crack in an enclosure, it will not see, and the quarterly report says what was watched and what was not. The repair is made by your electrician.

Boards your facility cannot run without? Name them, and we will say what to watch.

Talk to an engineer about your boards
Electrical Watch | Wattif