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TDMS – Test & Data Management Software

TDMS is a test and data management software package designed for acceptance and maintenance testing of electrical power system equipment. It organizes test results from different test sets, stores asset data in a central database and provides tools to create, execute and document test plans. TDMS acts as a common control platform for compatible test instruments and as a data hub for evaluation, history and trending of transformers, circuit breakers, protection relays, instrument transformers, batteries and other substation assets.

FAQ

What is TDMS?

TDMS is a software application for managing test data of electrical equipment. It allows users to define test plans, control test sets, store results in a database and generate structured test reports.

Which tasks does TDMS support in daily testing?

It manages asset and device information, controls connected test systems, collects and stores measurement results, links them to specific assets and supports the creation of standardized and customized test documentation.

For which types of equipment can TDMS be used?

Typical use cases include protection relays, instrument transformers, power transformers, switchgear and circuit breakers, energy meters, batteries, grounding systems, surge arresters and other substation or plant components.

How does TDMS interact with test sets?

TDMS works as the control and data platform: test sequences are defined in the software, sent to compatible test sets, and the measured values are automatically returned and associated with the corresponding asset or test object.

What are the benefits of the central database?

All device data and test results are stored in a structured way. This supports traceability, comparison of different test campaigns, long-term trending and consistent documentation across the entire asset fleet.

Can TDMS represent substation or network structure?

Yes, substations, feeders and bays can be mapped in the database so that test objects and their results can be organized according to the actual network and installation structure.

Which reporting options are available?

TDMS includes report functions to produce test reports for single devices, groups of devices or complete substations. Reports can be based on templates and can be adapted to specific documentation requirements.

Does TDMS support trend and condition analysis?

By storing the history of test results, TDMS allows comparison of measurements from different test dates, making it possible to detect trends, degradation or stable behaviour over time.

How are test plans handled in TDMS?

Test plans are created and stored as reusable templates linked to device types or asset classes. For recurring tests they can be applied again with minimal modification, saving time and improving consistency.

What is TDMS’s role regarding calibration and updates?

TDMS can maintain information about calibration status and firmware or software versions of connected test instruments and may support distribution or management of updates within the test environment.

Is TDMS suitable for both commissioning and periodic testing?

Yes, it can be used for initial acceptance tests during commissioning as well as for routine maintenance and periodic re-testing using identical or adapted test plans.

How are user rights and access organized?

Depending on configuration, user accounts with different access levels can be defined, for example for test engineers, supervisors or administrators, ensuring controlled access to data and settings.

Which advantages does TDMS offer for compliance and audits?

Clear assignment of tests to assets, traceable histories and standardized reporting support compliance with internal requirements and external regulations or audit demands.

Can TDMS export data to common office formats?

Test reports and selected data can typically be exported to widely used file formats for further processing, archiving or sharing within the organization.

Who is the target user group for TDMS?

Utilities, service and maintenance providers, industrial plant operators, testing laboratories and engineering companies involved in testing and maintaining protection, control and power apparatus in substations and power systems.