Services - Sigma Hv Testing and Engineering

Our services

PROTECTION RELAY TESTING

Primary & secondary current injection testing of Protection relays. Routine and annual maintenance testing of protection circuits on existing switchgear.

SWITCHGEAR INSTALLATION & MAINTENANCE

Installation & Commissioning of new Switchgear.

PROTECTION SETTINGS STUDIES. POWER SYSTEMS ANALYSIS

Protection Surveys; Power monitoring; Grading & preparation of Settings Sheets.

TRANSFORMER MAINTENANCE

Transformer Routine Testing; Ratio Tests; Tap Changer Maintenance; Re-gasketing.

CB MAINTENANCE & TESTING

CB Routine Tests; Condition Monitoring.

PANEL FAULT FINDING & REPAIRS

Fault finding on protection, Metering & Control Circuits.

METERING SOLUTIONS

Installation & Wiring of Energy Meters. Metering of Low & Medium Voltage Distribution Feeders.

CONTROL WIRING

Design & Installation of Mini-substations.

TESTING OF HT CABLES

AC & DC Pressure Testing of Cables; Cable laying; Cable Jointing Services; Cable Termination Services.

BATTERY TRIPPING UNITS

Installation & Maintenance of correctly sized Battery Tripping Units.

MINI SUBSTATIONS

Design & Installation of Mini-substations.

SWITCHGEAR REFURBISHMENT

Panel Retrofit Work; Circuit Breaker retrofit Work.

EARTH RESISTANCE TESTING

Testing of ground resistance.

MOTOR CONTROL CENTRES

Maintenance. Testing. Repairs.

POWER FACTOR CORRECTION

Power System Studies. Design & Implementation of appropriate PFC Solution. Maintenance & Repair of PFC Units.

DESIGN OF PROTECTION CIRCUITS

Single Line Diagrams. Design of Schematics. Modifications.

TRAINING

Presentation of Training Courses. Theory & Practical Demos.

SUPPLY OF ELECTRICAL EQUIPMENT

Suppliers of Engineering Spares & Materials since initial establishment in 2015.