Skip to content
Close
SEARCH
Contact
Contact
SHOT01_01_002

Dynamic Disturbance Recording (DDR)

Simultaneous operation with DFR, PMU, and PQ functions
Selectable analog and digital parameters
Fully COMTRADE‑compliant

Continuous Monitoring for System Stability and Trends

Dynamic Disturbance Recording (DDR) provides long‑duration monitoring of slow‑changing power system conditions. Within the IDM+ multifunction power system monitor, DDR offers detailed visibility into trends, oscillations, and system behaviour leading up to and following major events. This helps utilities better understand system stability, equipment performance, and grid response during abnormal or evolving conditions.

Send an Enquiry
IDM U3

Application Overview

DDR is used in transmission networks, substations, and generating stations to continuously track system performance at lower sampling rates over extended periods. The IDM+ captures slow‑scan data, logs key parameters, and highlights periods of interest using event flags. A built‑in rolling buffer (typically 10–15 days depending on configuration) ensures operators have ongoing access to essential system behaviour data. DDR records can also be correlated with Digital Fault Recording and power quality data for a complete view of system events.

What This Product Solves

  • Identifies long‑term system trends such as slow voltage variations, load changes, or developing instabilities.

  • Improves understanding of wide‑area behaviour by aligning disturbance data with other monitoring types (DFR, PMU, PQ).

  • Helps detect pre‑fault conditions and post‑event recovery patterns invisible to traditional fault recorders.

  • Supports system planning and reliability initiatives through continuously logged measurements and extended historical data.

 

 

 

 

TECHNICAL

Key Features

fill1970-substation-3296872_1920
Flexible DDR Sampling Rates

DDR sampling rates can be configured from 120 Hz to 7.5 Hz (60 Hz systems) and 100 Hz to 6.25 Hz (50 Hz systems) to match the utility’s monitoring needs. This flexibility allows operators to choose the right balance between detail and storage.

natashag-electric-632731_1920
Large Rolling Storage Buffer

The IDM+ provides a 10–15 day rolling buffer for DDR records, depending on CompactFlash size and settings. This ensures long-term visibility of system behaviour without data loss or overwriting too soon.

analogicus-transmission-tower-3387882_1280
Selectable Inputs for Each Record

Up to 32 calculated analog parameters and 64 digital inputs can be included in each DDR record. This makes it easy to tailor monitoring to key circuits and measurements that matter most to system operators.

neil_crook-transformer-5376500_640
Time‑Aligned Recording Across Devices

Multiple IDM+ units can work together by sharing triggers over the network. With GPS or IRIG‑B time sync providing accuracy down to 100 nanoseconds, all captured records line up perfectly, making it easier to analyze system‑wide events.

Functionality & Options

  •  Variable sampling rates (30.7 kHz down to 1.9 kHz) for fault and transient monitoring.

  • Selectable analog channel configuration, where any channel can be ordered as voltage, current, or DC.

  • Multiple channel count options — 9, 18, or 36 analog channels depending on model size.

  • Synchronized time stamping using GPS or IRIG‑B, achieving up to 100 ns accuracy.

  • Automatic or manual decimation to reduce record size for slower communication paths.

  • Seamless integration with system‑wide monitoring through Ethernet, serial, modem, or fibre‑optic communication options.

  • Centralized data management via iQ+ master station software, supporting storage, processing, visualization, and reporting.

Key Technical Specifications

  • Sampling rate (DDR):

60 Hz systems: 7.5, 15, 30, 60, or 120 Hz

50 Hz systems: 6.25, 12.5, 25, 50, or 100 Hz

  • Rolling buffer: 10–15 days (depending on storage configuration).
  • Selected parameters: Up to 32 analog and 64 digital channels per DDR record.
  • Storage: 4 GB CompactFlash standard (8 or 16 GB optional).
  • Event logging: Fully time‑synchronized with GPS/IRIG‑B (up to 100 ns accuracy).
EXPERIENCE

Our Projects featuring Insulect Networks

Explore our project highlights to see where Insulects Networks are making an impact.  For tailored advice on whether this solution suits your network, please connect with our team here.

See All Projects
Start Reading

Powering Up Tallawarra: Delivering Specialised Solutions for a Critical Energy Upgrade
Start Reading

High-res disturbance & fault recording & location

Where you'll find our Networks products

You'll find Insulect-supplied and installed Networks products across Australia and New Zealand.

ADVANTAGES

Why Choose Insulect for Networks

Insulect provides Australian utilities and energy providers with world-class fault and disturbance monitoring solutions backed by deep industry expertise, local support, and future-ready technology.

Trusted Platform

The IDM+ is deployed across thousands of substations in Australia and globally. With proven reliability and compatibility with AEMO requirements, it’s the trusted standard for advanced fault recording.

 

 
Local Engineering Support

From system design and integration to on-site support and training, our Brisbane-based team ensures your monitoring system performs reliably and delivers results from day one.
End-to-End Lifecycle Services

Our services include installation, commissioning, repairs, firmware updates, and full system upgrades. We help customers get more value out of their monitoring investment over time.
IMPLEMENTATION

Services & Support

Insulect offers comprehensive services and support for the products we manufacture and specialise in, enhancing value for local utilities, major energy users, equipment manufacturers, and service operators.

LOCAL TECHNICAL TEAM

Our local technical team provides exceptional support and expertise, ensuring quick response times and personalised service to tackle any challenges that may arise during project execution.


  
ENGINEERING DESIGN

Our team utilises advanced technology and industry knowledge to develop innovative and efficient high voltage switchgear solutions, customised to fit the unique requirements of each project.


  
PROCUREMENT & LOGISTICS

We facilitate smooth procurement and logistics processes by sourcing from trusted, proven partners and coordinating timely deliveries, ensuring projects remain on schedule and within budget.

  
TESTING & COMMISSIONING
Professional testing and commissioning support ensures that every high-voltage switchgear system functions safely and reliably, adhering to all regulatory standards and client expectations.
  
TURNKEY PROJECT DELIVERY

We are able to oversee every phase from concept to completion, providing comprehensive solutions that simplify complex projects and ensure successful outcomes.

  
FACTORY VISITS
We facilitate client visits to our local manufacturing sites here in Australia, as well as overseas, for initial inspection as well as factory acceptance testing.
  
FROM THE BLOG

Featured Articles

Ready to Strengthen Your Network?

We built for reliability, safety, and compliance — our products are designed to perform in the toughest environments. Talk to our team to ensure you're specifying the right product for your application.
Speak with our Team