Modernize Substations


Dhee has experienced Project team has commissioning experience of 50 Plus transmission substations across India. We developed expertise in testing, configuring, implementing and post warranty support of IED's. We provide the service support of all the leading relays like ABB, Siemens, GE, Alstom, Thytronic etc.

We automate the legacy substation to IEC 61850 substation by retrofitting the FRTU’s, Protection relays and Meters. In the process provide Control and protection data to users on SCADA.

The main activities carried out are:

  • Relay retrofitting solutions provide a smooth replacement of a customer's legacy protection and control equipment
  • Mount FRTU’s in the existing Panels without disturbing the existing Functionality
  • The activities include installation, testing and commissioning of the relay.
  • The engineer will meet the customer requirements as per schedule and priorities given.
  • All necessary technical inputs and training needs to be provided.

  • Our service engineers have on working on standard test kit equipment, site experience in setting the application, perform acceptance test covering all the technical activities of control relay.

    We cover the complete cycle of retrofitting right from assessing the activity, proposal building and simulation of the required environment, project management, installation, commissioning, testing, post implementation support and annual maintenance contract.

    We cater to the needs of servicing needs in the following scenarios

  • The existing relays or meters replacement to the new IED's in retrofitting jobs
  • Servicing of the IED's in case of new/changed functionality to be incorporated, configuration to be updated in the software
  • The faulty IED are replaced with a new one, here the new IED needs to be synchronized with the existing IED.
  • Configuring the IED in a new substation to incorporate the system functionality as per the guidelines in design. The new application setting, testing of IED as per testing guidelines.
  • Regular or periodic maintenance of IED as a preventive measure.
  • We cover the relays in generation, transmission and distribution sectors.
  • We provide a comfortable feel to our customers by providing the utmost transparency in our activities, right from information our project milestones, activity updates, documentation of all the activities and keeping informed about the actions for preventive maintenance.
  • The benefits our customers reap in Dhee relationship are

  • One stop solution for all the protection relay related concerns, customer will use online portal for registering compliant and check the status of closure online
  • The job being handled by the team experts in the industry who have a know-how in various situations from their field experience
  • The experienced project manager managing the team with efficient management practice in guiding and providing technically expertise.
  • Our motto is to develop less disruptive environment and gear up customers for preventive maintenance
  • Enable you towards energy efficient measures
  • Provide complete guidelines for improved equipment operation and there by handle both planned and unplanned disruptions