Hioki

Energy

Addressing diverse needs in electrical safety, preventive maintenance, and environmental measurement for buildings and facilities. We also collaborate with customers in developing new technologies for alternative energy generation in pursuit of a decarbonized society.

Typical setting
A substation, a rooftop array, a building riser, a switchroom at 6 a.m. before the shift.
Product groups
9
Measurement locations
6

Is this installation safe, and will it still be safe next quarter?

These are the measurements that decide the answer, and the ones most often taken badly.

  • Insulation that has degraded since the last test but has not failed yet.

  • Leakage current that trips a breaker once a week and never at the same hour.

  • Harmonics and voltage sags that damage equipment the invoice blames on the equipment.

  • Earth resistance that was compliant at commissioning and has drifted since.

Where the measurements are taken

Supply quality: sags, swells, harmonics, flicker

Incoming supply

Everything downstream inherits whatever arrives here. Measure it before blaming the equipment.

Power Quality Analyzers

Insulation resistance of windings

Transformer

Insulation does not fail suddenly. It trends, and the trend is only visible if someone measured it last year too.

Insulation Testers

Leakage and load current, without disconnection

Main switchgear

The leakage that trips a breaker once a week is milliamps on a conductor carrying hundreds of amps.

Clamp Meters, Current Probes / Sensors

Power and energy over time

Distribution busbar

Consumption is attributed by circuit or it is not attributed at all.

Power Loggers

Earth resistance, phase sequence, live-line check

PV array / generation

The three checks that happen before anyone is allowed to start work.

Ground Resistance, Phase Rotation, Voltage Detection

Any of the above, continuously, after everyone leaves

Remote monitoring

Degradation happens on a timescale nobody can stand and watch.

IoT / Specialized Solutions

Instruments used in energy

Bring us the energy measurement you are stuck on.

Describe the installation and the quantity. We will say which instrument group measures it and what the measurement actually needs to resolve.

Open the full enquiry form

An engineer replies with ranges and methods, not a brochure.

What has to be true inside the company

Four criteria of innovation, and the reason a measurement can be trusted outside it.

Increasing customer value

Production system

A production system built so that a measurement need turns into a delivered, calibrated instrument without the customer absorbing the delay.

Delivering peace of mind to customers

After-sales service

An instrument is only as good as the number it still reports in year five. After-sales service exists to keep that number trustworthy.

Pursuing productivity and precision

Manufacturing capabilities

Precision is a manufacturing capability before it is a specification. It is held in the process, not promised in the catalog.

Creating new customer value

Collaborative development of new products

When a field has no instrument for the quantity it needs to see, the instrument gets developed with the customer who needs it.