Handheld Device

UltraTEV® Plus²

Helping you make Partial Discharge measurements easy with the UltraTEV® Plus²

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Overview
Benefits
Sensors
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Accessories

Overview

Regardless of whether you have encountered challenges with Partial Discharge (PD), it is crucial to understand its risks. Industry studies reveal that insulation degradation is the primary cause of failure in switchgear with 80-85% of disruptive failures stemming from insulation issues.

Our award-winning UltraTEV^® Plus² is designed to detect PD early, crucial for preventing costly outages and ensuring uninterrupted operations. It incorporates enhanced sensing capabilities and real-time analytical features, enabling precise differentiation between true PD, noise, and other interference. This capability empowers you to make informed decisions swiftly, saving valuable time and resources, whilst enhancing the safety of your employees.

Why Choose the UltraTEV^® Plus²?

Simplify your PD survey process

Our on-device prompts guide the user through the PD detection process. This approach delivers a step change in PD data quality, providing many operational benefits when compared to traditional survey methods

You don’t need to be a PD expert to conduct PD surveys - our Guided Mode simplifies PD surveys by interpreting data directly on-screen.

Managed Surveys Integration

The UltraTEV Plus² has evolved from a periodic inspection tool into a vital component of proactive switchgear maintenance plans. It now offers a structured approach to PD Detection, guiding users through the entire process and effortlessly synchronizing data with our cloud-based Managed Surveys platform, providing access to expert analysis.

This integration seamlessly fits with asset management systems. By comparing PD results to identify trends, it improves early issue detection and decision-making capabilities, supports strategic decisions, ensures effective maintenance planning, and extends the lifespan of your assets.

Versatile PD Detection and Adaptability

UltraTEV offers a comprehensive range of accessories for precise PD detection across diverse asset types and environments.

Ensuring reliable performance from substations to switchgear, transformers, and cable networks, addressing PD challenges comprehensively.

Accessories Highlight for UltraTEV Plus2

Benefits

Sensors

Multiple sensors for comprehensive assessment

There are multiple types of PD (internal, surface, corona), different types of assets that we may wish to test that can operate at a range of voltages. To deal with these variables, the UltraTEV Plus² has the capability to use multiple measurement techniques and utilise a range of sensors to allow comprehensive testing of diverse assets and detection of PD.

Ultrasonic (airborne and contact)
TEV
UHF
HFCT
Environmental (ambient temperature and relative humidity)

UltraTEV Plus² Locator Probe

The UltraTEV Plus² Locator probe accessory allows sources of TEV to be accurately located using the time of flight technique. The instrument can determine the direction of travel of the TEV pulses by discriminating timing of pulses arriving at each sensor down to a fraction of a nanosecond - equivalent to a few centimetres in distance. Advanced software enables the instrument to locate PD at multiple discharge sites.

UHF Directional Antenna

The UHF Directional Antenna accessory for the UltraTEV Plus² is uniquely effective for detecting and locating PD activity in open terminal switchyards. It is also a highly effective instrument for detecting PD problems in cable joints and sealing ends. The antenna is very compact and is specifically designed for safe use inside electrical switchyards. As the antenna is highly directional with a selectable centre measurement frequency it can easily be employed as a first pass safety tool for switchyard entry. It can also be used for surveying and pinpointing individual sources as part of a full site survey.

The instrument can be tuned to avoid other interference related frequencies within the switchyard and will ignore non-destructive corona discharge activity. With its unique ability to detect internal partial discharge activity in high noise environments it complements the use of the UltraTEV Plus² and UltraDish.