Monitor your HV assets through continuous partial discharge monitoring
NDB PD Profiler™
The PD Profiler™ is a cutting-edge Partial Discharge Monitoring and alarm system designed to boost reliability and safety of MV and HV electrical systems, including switchgear, RMUs, dry-type transformers and power cables.
It can be used for on-site partial discharge surveys or integrated into a permanent monitoring system, continuously detecting developing insulation problems and alerting maintenance teams so they can act before these issues lead to electrical failure or unplanned outages.
- New generation of PD Monitoring
- From 8 to 20 PD channels with PrPD diagnostics
- Advanced interference management/gating
- Highly scalable daisy chain deployment
- No shutdown required for installation
- Din rail or magnetic mount
- Flexible deployment for both survey work and long-term grid coverage
- Onboard memory with several months recordings
Monitor your HV assets through continuous partial discharge monitoring
NDB PD Profiler™
The PD Profiler™ is a cutting-edge Partial Discharge Monitoring and alarm system designed to boost reliability and safety of MV and HV electrical systems, including switchgear, RMUs, dry-type transformers and power cables.
It can be used for on-site partial discharge surveys or integrated into a permanent monitoring system, continuously detecting developing insulation problems and alerting maintenance teams so they can act before these issues lead to electrical failure or unplanned outages.
- New generation of PD Monitoring
- From 8 to 20 PD channels with PrPD diagnostics
- Advanced interference management/gating
- Highly scalable daisy chain deployment
- No shutdown required for installation
- Din rail or magnetic mount
- Flexible deployment for both survey work and long-term grid coverage
- Onboard memory with several months recordings

Exclusive NDB partner for the UK and Ireland

Online monitoring with no shutdown required

Temporary, permanent and scalable systems

Local, Cloud or SCADA/BMS Integration

Expert Analysis, Installation & Support
Turn Partial Discharge Data Into Clear Engineering Decisions
The NDB PD Profiler™ continuously monitors multiple assets or measurement points, using PRPD diagnostics, configurable filtering and advanced noise suppression to help engineers distinguish genuine partial discharge activity from background interference.
It provides the information needed to:
- Identify which asset or monitoring channel is producing activity
- Review phase-resolved partial discharge patterns
- Track whether activity is stable, intermittent or increasing
- Receive alerts when monitored conditions change
We can display this information through its purpose-built monitoring platform or integrate the system with existing local, SCADA or BMS environments. Our engineers can also support system configuration, installation and ongoing interpretation.
NDB PD Profiler™
One platform, three ways to deploy it
Not every partial discharge concern requires the same monitoring commitment. ACTENIQ configures the PD Profiler™ around asset criticality, access, risk and the evidence your team needs, providing a proportionate solution that can evolve alongside your monitoring requirements.

On-site PD survey
Collect multi-channel partial discharge data across selected assets during a defined site assessment. Best suited to initial condition checks, investigating a suspected issue or determining whether longer-term monitoring is required.

Temporary online monitoring
Keep the PD Profiler connected temporarily to capture intermittent activity and developing trends. Best suited to urgent concerns, higher-risk assets and maintenance or shutdown decisions that require more evidence.

Permanent online monitoring
Continuously monitor critical assets to identify changes, track long-term deterioration and receive alerts when conditions develop. Best suited to assets where failure would have serious operational, safety or financial consequences.
Frequently Asked Questions
What is the NDB PD Profiler?™
The PD Profiler™ is a configurable online partial discharge monitoring system. It uses multiple sensor channels and phase-resolved partial discharge analysis to detect, record and trend PD activity across electrical assets. It can be used for surveys, temporary investigations or permanent monitoring.
How can I buy the PD Profiler™ in the UK or Ireland?
ACTENIQ is NDB Technologies’ exclusive partner for the UK and Ireland and can provide application advice, equipment supply, system configuration, installation, integration, training and ongoing support.
Does installation require a shutdown?
The PD Profiler™ is designed for no-shutdown installation in suitable applications and can be mounted magnetically to metallic cabinets or on a DIN rail. The safe and appropriate installation method depends on the equipment, sensors, access and site rules, so ACTENIQ will assess this as part of the system design.
How much does a PD Profiler™ system cost?
The cost depends on the monitoring approach required, the number of assets being monitored, the sensor configuration, connectivity requirements and whether the system is portable, semi-permanent or permanently installed. ACTENIQ can review your site requirements and recommend the most suitable ndb monitoring setup based on your risk, infrastructure and budget.
What assets can it monitor?
The PD Profiler™ can be configured for switchgear, cable systems, transformers and wider substation or electrical-network applications. ACTENIQ will recommend the sensor and channel arrangement around the asset type and monitoring objective.
What does PRPD show?
Phase-resolved partial discharge analysis plots detected discharge activity against the phase position of the voltage waveform. The resulting patterns can help experienced engineers distinguish potential PD behaviour from interference and investigate the nature of the activity.
Does the system have to use the cloud?
No. ACTENIQ can design local, cloud-connected or integrated monitoring arrangements around operational, data and cyber-security requirements. Available interfaces include Modbus IP, MQTT, REST API and USB.
Can PD Profiler™ data be integrated with SCADA or BMS?
No. ACTENIQ can design local, cloud-connected or integrated monitoring arrangements around operational, data and cyber-security requirements. Available interfaces include Modbus IP, MQTT, REST API and USB.
Can ACTENIQ help interpret PD data?
Yes, subject to the selected system architecture and the capabilities of the receiving platform. The PD Profiler provides industrial communication options and alarm outputs, while ACTENIQ can design the connection into relevant site or asset-monitoring systems.
Can ACTENIQ help after partial discharge is detected?
Yes. ACTENIQ can interpret the data, assess risk, recommend next steps and support remediation planning or ongoing monitoring.
Interested in the PD Profiler™ for Your Site?
Whether you need to investigate a suspected issue, monitor a critical asset temporarily or build permanent PD visibility across a wider network, ACTENIQ can help define the appropriate configuration.
Tell us what you need to monitor and what decision the data needs to support. An ACTENIQ engineer will respond within one working day.
