Ti 25 Applications

Electrical Contracting Diagnostics - HVAC R Systems - Utility - Facilities Maintenance - Mechanical Systems

	HVAC Air leakage inspections In energy audits of homes and other buildings, technicians use blower doors in conjunction with thermal imagers. The blowers create positive or negative pressures within interior envelopes, making leaks much more apparent in thermal images. Read more...		Infrared inspecting for building and facilities maintenance Surface temperature can tell you a lot about a building's structural elements, plumbing installations, and HVAC and electrical systems. Problems that are otherwise invisible to the naked eye are suddenly clear as day when you look through an infrared lens. Read more...
	Infrared Thermal Imagers: A primer for HVAC technicians This brief introduction to thermal imagers is offered to present the potential user some insight to typical applications and may spark ideas for additional uses. Read more...		Why thermography is good for your business Electrical contractors typically use thermal imagers for predictive maintenance and troubleshooting, and sometimes during installation. Read more...

Electrical Distribution Infrared Diagnostics

Commonly inspected components

• (3 phase) Power distribution

• Fuse boxes

• Cables & connections

• Relays/Switches

• Insulators

• Capacitors

• Circuit breakers

• Controllers

• Transformers

• Motors

• Battery banks

Typical reasons for temperature hotspots or deviations

• Unbalanced loads

• Harmonics (3rd harmonic current in Neutral)

• Overloaded systems/excessive current

• Loose or corroded connections increased resistance in the circuit (typically one side of components heats up)

• Insulation failure

• Component failure

• Wiring mistakes

• Underspecified components (like fuses) would heat up on both side of the fuse

In Plant Electrical Thermal Scans

Commonly inspected components

• (3 phase) Power distribution

• Fuse boxes

• Cables & connections

• Relays/Switches

• Insulators

• Capacitors

• Substations

• Circuit breakers

• Controllers

• Transformers

• Motors

• Battery banks

Typical reasons for temperature hotspots or deviations

• Unbalanced loads

• Harmonics (3rd harmonic current in Neutral)

• Overloaded systems/excessive current

• Loose or corroded connections increased resistance in the circuit
(typically one side of components heats up)

• Insulation failure

• Component failure

• Wiring mistakes

• Underspecified components (like fuses) would heat up on both side of the fuse

Mechanical System Infrared Inspections

Commonly inspected components

• Motors

• Pumps

• Heat exchangers

• Bearings

• Gearboxes

• Drive belts

Typical reasons for temperature hotspots or deviations

• Bad cooling - due to reduced airflow

• PQ problems like unbalance, overload or 5th harmonic (voltage) will cause heat dissipation

• Bad alignment

• Insulation problems with motor windings

• Bearing problems - lubrication, wear, etc.

• Friction due to wear, misalignment or inadequate lubrication

Ti25 Resources

Electrical Contracting Diagnostics - HVAC R Systems - Utility - Facilities Maintenance - Mechanical Systems

Electrical Distribution Infrared Diagnostics

In Plant Electrical Thermal Scans

Mechanical System Infrared Inspections