EA Technology Partial Discharge Detectors

What are EA Technology Partial Discharge Detectors?

EA Technology’s Partial Discharge (PD) Detectors are handheld instruments used to identify early signs of insulation degradation in medium and high-voltage electrical equipment. They help prevent failures in assets like switchgear, transformers, and cables by detecting PD activity without needing to shut down the system.

What Do EA Technology Partial Discharge Detectors Measure?

These detectors identify different types of partial discharge:

• Internal PD: Detected using Transient Earth Voltage (TEV) sensors.
• Surface PD: Detected using ultrasonic sensors.
• Cable PD: Measured using High-Frequency Current Transformers (HFCTs)

They also record environmental conditions like temperature and humidity to support accurate diagnostics.

How Do EA Technology Partial Discharge Detectors Work?

These instruments operate by detecting the electromagnetic and acoustic emissions produced by partial discharges. TEV sensors capture internal discharges, while ultrasonic sensors pick up surface activity. The devices process these signals to differentiate between true PD events and external noise, providing clear indications of asset condition. Advanced models like the UltraTEV Plus² guide users through the detection process, displaying results on a colour touchscreen for immediate interpretation.

Applications of EA Technology Partial Discharge Detectors

EA Technology PD Detectors are utilised in various settings, including:

• Substations: Routine inspections of switchgear and transformers.
• Industrial Facilities: Monitoring high-voltage equipment to prevent unexpected outages.
• Utilities: Assessing the condition of power distribution networks.
• Maintenance Programs: Integrating PD detection into preventive maintenance strategies.

By identifying insulation issues early, these detectors help extend the lifespan of electrical assets and enhance overall system reliability.