TriEl Ltd. is the official distributor of the products
of CRESSALL/TPR Resistors (Power Resistors).

www.cressall.com

TriEl Ltd. is the official distributor of the products
of VAMP Finland (Protection Relays).

http://www.vamp.fi

TriEl Ltd. is authorised agent for Bulgarian market
of HV (over 110 kV) cables and accessories in the
production scope of BRUGG Cable.

www.brugg.com

• 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.

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.

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.