Services
We design, build & test all of our solutions.
Spreading our light
- Johannesburg
- Pretoria
- Durban
- Nelspruit
- Cape Town
- DRC
- Zimbabwe
- Botswana
-
Mozambique
-
Namibia
-
Eswatini
Design and Engineering Solutions
Our design work covers projects of all types and includes the following:
- Conceptual design
- Detailed single line diagrams
- Cable schedules
- Protection Setting Studies and Power System Analysis
- ETAP Modelling
- Training courses that combine both theory and practical demonstrations
Control and Relay Protection Panels
Our panels are built to our customers specification and assist in protecting, controlling and communicating with the equipment found on various substations to ensure that it is running efficiently and effectively.
Types of Relay Control Panels:
- Transformer
- Overhead lines
- Feeder
- Buszone and Bus section
- Capacitor Banks
- Metering
- LVAC
- SCADA
- Top Hat
Testing and Maintenance Services
Our engineers have extensive experience in the
testing and commissioning of new and existing substations, ranging
from 400V – 400kV. Our group of highly skilled engineers coupled with
the latest testing equipment, give us a competitive edge when testing
and commissioning a substation.
General Tests:
- AC Board and Supply Checks
- DC Board and Supply Checks
- Protection and Control Functions Checks
Current Transformer Tests:
- CT Secondary Injection Tests
- CT Primary Injection Tests
- CT secondary winding and circuit resistance
- CT Polarity Tests
- CT insulation Tests
- Tan Delta Tests
Voltage Transformer Tests:
- Insulation Resistance Tests
- Tan Delta Tests
- Ratio and Class Tests
- Polarity Tests
Power Transformers:
- Insulation Resistance Tests
- Open Circuit Tests
- Ratio Tests
- Short Circuit Tests
- Vector Group Test
- Differential Protection stability checks
- Function Checks on Transformer Alarms Trips
- MV Transformer Cables – VLF testing
- Winding Resistance Tests
- Tan Delta Tests
- Sweep Frequency Analysis Tests (SFRA)
NEC/R and Auxiliary Transformers:
- Open Circuit Tests
- Ratio Tests
- Short Circuit Tests
- Vector Group Test
- Zero Sequence Tests
- Function Checks on Transformer Alarms Trips
- Winding Resistance Tests
- Tan Delta Tests
- Sweep Frequency Analysis Tests (SFRA)
Circuit Breaker Tests:
- Dynamic or Static Contact Resistance Tests (Dynamic not on VCBs)
- Speed and timing tests
- Functional tests
Isolators and Earthswitches:
- Contact resistance tests
- Functional tests
- Primary to secondary contact timing tests.
Indoor Switchgear (3.3 – 33kV)
- Full functional testing
- CT & VT testing
- Contact resistance of busbars and CBs
- ARC and busbar protection testing
- VLF pressure testing
Relays
- Secondary Injection Tests
- Functional Tests (Checking Relay configurations)
Commissioning ServiceS
-
Commissioning of protection, metering, controls, supervisory controls for new projects.
-
Fault finding and diagnosis (Audits)
-
Substation supply and erection with joint
- Laying and termination of control cables
