Our Services
Survey and Preliminary Study, Outline Designs and Budget Estimation, Development of Client's Requirements
Survey and Preliminary study includes working out of full set of preliminary technical documentation, drawings and calculations, based on site information, specific tender requirements and particular enquiries of the client. The stated above is a basis for an Outline design, which could be a Technical part of offers and also for Commercial part of offers with estimated respective Budget Price or more precise Offer Price. Additional Requirements of the client could be developed.
Working Design Drawings and Bill of quantities for equipment and materials
TRIEL Ltd. offers complete design of electrical substations. Our employee are familiar with the main equipment of almost all famous European producers of high voltage and medium voltage equipment used in such projects. Our designers and commissioning team have enough knowledge with the latest generations of relay protections of ABB, Siemens and Alstom. They have passed many training courses in training centers of ABB, Siemens and Areva/Alstom including most modern types of numerical relays and corresponding configuration and maintenance software. After completion of commissioning works the company undertakes to work out as-build drawings.
TriEl Ltd. offers also: Complete design of electric power supply for industrial customers. Complete design of electrical installations in residential and office buildings. CAD services for electrical and civil projects. Our design is based on AutoCAD format for civil works and electromechanical drawings, and on ELCAD 7.2 for control and protection systems. Working languages are English, Bulgarian, Russian. Translation on any other European language is possible too.
Project management
In addition to Engineering skills TriEl Ltd. offers a project management and co-ordination services integrating the skills of other contractors to provide a turnkey solution.
Our Project Managers provide:
- Project and resource planning.
- Approval of technical specification for the equipment to be contracted.
- Control of Production.
- Factory Acceptance Tests.
- Project cost control.
- Installation and Commissioning plan.
- Final Acceptance Test.
Installation, site supervision and training
Installation
The company undertakes complete electrical installation services, commissioning and start up of any kind of Power Supply Projects. - Installation works including erection of primary and secondary equipment in electrical switchgears - Installation of fibre optic cables and optical ground wires (OPGW) and associated active equipment. Partial or complete site management and supervision of the erection stage.
Training
The activities of TriEl Ltd. are in Bulgaria and abroad. In addition to the installation teams we can provide separately supervisors of local work force and training of the staff, theoretically and on-the-job training. Training is carried out both in the Customers office or on the Project site. Training programs are application based as opposed to product based trainings and can provide training for Engineers, Supervisors and Operators.
Commissioning tests
Power Supply Projects
- General plant commissioning or commissioning of individual systems, including preparation of commissioning time schedules.
- Preparation of testing procedures, test sheet forms and functional check lists.
- Testing of primary and secondary equipment, functional tests.
- Plant energizing and on-load tests.
Relay Protection Testing
Testing of relay protection systems, either before energizing or as a routine maintenance. Our existing experience includes M-series, K-series and MiCOM-series of Areva/Alstom relays, Siprotec 3 and Syprotec 4 series of numerical relay protections from Siemens, REx5xx series terminals and SPACOM-series from ABB, as well as older types of electromechanical relays from Asea and Brown Bovery still in use. Configuration and testing of these relays includes also use of K-SOFT PASS and MiCOM S1 software from Areva/Alstom, Digsi v3 and v4 from Siemens, Substation Monitoring system (SMS), REVAL, CAP540 and CAP531 configuration software from ABB.
Industrial System Commissioning tests
- Execution, commissioning tests of industrial electric power supply and automation systems.
- Commissioning tests of emergency power supply systems, diesel generation sets and power supply systems for telecommunication purposes.
- Specialized maintenance and services.
TriEl Ltd. has a certificate for "Inspection body type C" authorized by National Accreditation Service - Bulgaria acc. to ISO/IEC 17020:2005.
Equipment and material supplies
- Supply of electrical equipment and materials according to the client specifications.
- Preparing of specifications according to the client's requirements and delivery of electrical equipment and materials.
Control and Relay Panel Design and Manufacture
- Equipment from any serious European manufacturer can be used.
- Control and relay panels, fully equipped, wired and tested.
Our Partners
-
TriEl Ltd. is the official distributor of the products of CRESSALL/TPR Resistors (Power Resistors).
-
TriEl Ltd. is the official distributor of the products of VAMP Finland (Protection Relays).
-
TriEl Ltd. is authorised agent for Bulgarian market of HV (over 110 kV) cables and accessories in the production scope of BRUGG Cable.