Protection systems in modern electrical power systems are vital to ensure safe and reliable operation. In addition to maintaining the system’s safety, properly working protection systems guard assets against damage. Protective relays may become defective after consistent use due to thermal and/or electrical stress, as well as the accumulation of certain contaminants, likes dirt or water.

Delta provides thorough testing of protective relays, from their development through production and commissioning to periodic checks while they are in operation. Our technicians provide testing for:

Provides undervoltage, voltage absence, voltage presence, closing and reclosing permission functions for two breakers.

Accurate and dependable, electromechanical relays instantaneously convert voltage and current to magnetic and electric forces

Electronic switching device that switches on or off when a small external voltage is applied across its control terminals.

Installation and upgrades for SCADA (supervisory control and data acquisition) hardware and software components.