ndb Technologies
UK&I Exclusive Partner

Advanced Online Partial Discharge Monitoring
Innovative test & measurement equipment

Partial Discharge Monitoring

Partial Discharge (PD) is the Hidden Risk to High Voltage Assets You Can’t Afford to Ignore

1 in 4

high-voltage failures involve Partial Discharge according to IEEE studies.

82%

of companies have experienced at least one unplanned downtime incident over the past three years. Most have suffered two or more.

£1 million

Downtime for critical sites can cost £1,000,000’s per event and replacing failed equipment isn't quick.

SAFETY

PD is a known cause of fires and insulation failure which can put personnel & property in danger. It can occur to new and old equipment. Often triggered by humidity, poor installation or defects.

What would the cost be if your site suddenly lost power?

Are your HV systems only inspected once a year?

Are staff or contractors entering live zones just to detect faults?

The Solution

Peace of mind and due diligence with continuous monitoring

Our solution is an online partial discharge monitoring system that can be cloud connected or locally monitored.

Modular, easy to install and suitable for a wide array of industries including data centres, private networks, generation & utilities.

BOOK A DEMO

Worried about PD right now?

Deploy our portable online PD monitoring solution to get immediate 24/7 remote visibility to confirm PD suspicions and be alerted if conditions deteriorate.

Kits available to purchase or hire.

MORE INFO

Rapid Deployment

Can be installed with or without a power outage. Available as a permanent integrated system or a temporary quick diagnostic solution.

Open Compatibility

Connect securely to our remote cloud platform or keep data local on your internal systems such as BMS or SCADA.

Flexible Installation

Works across all HV asset types and manufacturers. Can also interface with other data sources like power or specialist sensor technologies.

Expert Analysis

Choose from expert 24/7 monitoring, hands-on training to self-manage or a hybrid model tailored to your operations.

What’s in the System?

Full network coverage with one unified system

PD Annunciator™

3x sensor channel aggregation
● Built-in noise reduction algorithm & smart alarming
● Local configuration (via USB) with free software
● Scalable deployment with daisy chaining units power & data
● Modbus output to local systems or cloud connection
● Remote threshold updates for system tuning

DATA SHEET
ndb PDA installed

SonoTEV™ Sensors

● The systems primary PD detection device
● Built-in TEV (transient earth voltages) and US (ultrasonic) sensors
● No shutdown required for externally mounted versions

3x sensor variations to suit installation locations:
● SonoTEV™: External monitoring on metal clad cabinets
● SonoTEV Air™: External monitoring on grills or vents of cabinets
● SonoTEV iAir™: Internal monitoring of cabinets

DATA SHEET
ndb SonoTev installed

HFCT-20HD & HFCT-60HD™

● High Frequency Current Transformers is designed for partial discharge detection on assets main earth bonding
● Split-core design for easy installation
● Noise shielded & rugged housing
● Weatherproof IP66
● 20mm & 60mm apertures

DATA SHEET

Cloud 24/7 Platform

● Remote access and alarm management from PD Annunciator™ modules
● Monitor, alarm & analyse PD data from a safe distance
● Removes the need for routine PD handheld meassuments that put operatives in potentially dangerous environments
● Allow experts to monitor the data for you 24/7
● Integrate other data such as humidity, thermal and circuit breaker performance

ndb Config

Example General Arrangement System Architecture

A typical partial discharge SonoTev, HFCT & PD Annunciator installation for a primary intake HV switchboard.

PD GA Example

Ready to Take Action

CONTACT US

We can offer systems in a variety of different packages to suit your organisation & requirements:

● Turnkey Solutions
● Hardware supply
● Comprehensive Training

● Remote Monitoring Services
● Expert Investigation Services
● Diagnostic and test equipment (detailed below)

We offer free CPD sessions to help organisations understand and manage PD risk.

ndb PDA & Sensors

Worried About PD Right Now?

ACTENIQ Portable Online PD Monitoring Kit

Spot check data is only as good as the moment it's taken!

✓ Immediate 24/7 remote visibility

✓ Confirm PD suspicions with continuous monitoring over time

✓ Get alerted soon as conditions deteriorate

✓ Monitor potentially dangerous assets from a distance


✓ Connectivity via 4G or network connection

✓ Local alarming

✓ Suitable for indoor & outdoor deployment

✓ Deployment time 1 hour

✓ No power outage required (with external cable box sensors)


Kits available to purchase or hire.