After the site equipment installations of the electrical contracting projects, the sommissioning and testing the site equipment are carried out by our expert team, and the test reports are sent to client.

Transformer Testing Services

Considering that the operating life of transformers, which are widely used in all kinds of industrial or distribution facilities today, is approximately 20-30 years, periodic maintenance is of great importance for the continuity of the facilities. In this context, the services we provide as ERCA Teknik Engineering;

• Turning Ratio Test
• DC Insulation Test
• Transformer Oil Purification
• Loss Angle Power Factor Measurement
• Loss Angle Power Factor Measurement
• SFRA (Sweep Frequency Response Analysis) Test
• Excitation Current Measurement
• Transformer Step Test
• DC Resistance Measurement
• Chemical Oil Analysis Measurements

Relay Test-Setting and Coordination Services

Protection relays used in high voltage systems are indispensable products for both human life and the healthy operation of the switchgear equipment to which they are connected. In order for a protection relay to perform its function correctly, when it is first installed in the field, it must be adjusted in accordance with the characteristics of the busbar to which it is connected and tested with a relay tester to ensure that the relay is working properly and that there is no error in the control circuit of the relay in the panel. Otherwise short circuit etc. in case of a malfunction; The switchgear facility to which it is connected, the transformer, engine etc. equipment to which it is connected, as well as the life of the person or persons in the field at this time will be in danger. For all these reasons, it is very important to test whether the protection functions of the relays in the field are working correctly.
Another issue is that in enterprises such as OIZs, factories, etc., which have more than one consecutive switchgear facility (distribution center), in case of a malfunction, making and testing relay coordination calculations and settings to cut off only the energy of the faulty point without cutting off the energy of the relevant facility is very important for the energy continuity of the business.

Relay Test Services for Protection and Control Systems;

• Overcurrent / Ground Fault Relay
• Distance Protection Relay
• Protection Relays for warning systems

• Transformer Protection Relay
• Generator Protection Relays
• Feeder Control Relay

• Cable differential Relay
• Busbar Protection Relay
• Under/Over Voltage Relay