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+255 616 627 609 info@tangtecheng.com Tabata Business Centre Building, 1st Floor, Dar es Salaam
Tang Tech& Engineering Ltd
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+255 616 627 609 info@tangtecheng.com
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Tang Tech & Engineering Ltd

Class V electrical works contractor for MV/HV power, testing, automation and ICT across Tanzania.

CRB Class V · EWURA Class A · BRELA 168901461

Services

  • MV/HV overhead line construction
  • Substation & transformer installation
  • Switchgear & metering panels
  • Testing, diagnostics & commissioning
  • Electrical installation & standby power
  • ICT & security systems
  • Automation & control systems

Company

  • Projects
  • Products
  • Trainings
  • Clients & partners
  • About
  • Contact

Contact

  • Tabata Business Centre Building, 1st Floor
    Dar es Salaam, Tanzania
  • +255 616 627 609
    +255 659 801 321
  • info@tangtecheng.com
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HomeServicesTesting, diagnostics & commissioning

Testing, diagnostics & commissioning

Our testing team verifies that HV equipment is safe to energise and keeps it that way. We test new installations before commissioning and run periodic diagnostics on assets already in service.

Electrician testing a distribution panel with a multimeter

What's included

  • CT and PT ratio, polarity, excitation and insulation analysis
  • Dielectric and insulation resistance testing
  • Partial discharge measurement
  • AC/DC and VLF voltage withstand testing
  • Transformer turns ratio, winding resistance and power factor tests
  • HV circuit breaker timing and contact resistance
  • Thermographic (infrared) surveys of panels and connections
  • Power quality analysis and power factor correction
  • Substation commissioning

What you receive

  • Signed test reports with measured values
  • Thermography report with images
  • Remedial recommendations

Recent related work

  • Cosmos Properties Ltd / Uhuru HeightsServicing of 2 × 2 MVA 33 kV transformers and 33 kV breakers, including testing of three 33 kV breakersTesting & maintenance · Completed
  • Eco ResidenceServicing of 11 kV breaker and transformerTesting & maintenance · Completed
  • Reef Hotel, Zanzibar BayElectrical installation and thermographic (infrared) electrical auditInstallation & audits · Completed
  • Kush ApartmentMaintenance of changeover switch panel and AVRTesting & maintenance · Completed
All projects

Discuss your site

Share your load, location and drawings. We'll advise on scope and send a quotation.

Request a quote

Other services

  • MV/HV overhead line construction
  • Substation & transformer installation
  • Switchgear & metering panels
  • Electrical installation & standby power
  • ICT & security systems
  • Automation & control systems

Planning a substation, line or upgrade?

Send us your site details and drawings. An engineer will review them and come back with a scope and quotation.

Request a quote +255 616 627 609