Protection technology prevents faults in electrical systems from leading to widespread failures. It protects valuable components and ensures that unaffected parts of the system can continue to be operated safely.
TRIPS tests all common protection devices worldwide, regardless of manufacturer. Our protection tests ensure that your systems react correctly and selectively to faults at all times.
TRIPS supports you in the parameterization and commissioning of protection technology systems from leading manufacturers. These include SIPROTEC from Siemens, MiCOM from Schneider Electric and Sprecher protection relays. Our experts take care of the complete implementation – from planning and parameterization with the respective manufacturer tools to final commissioning and functional testing on site.
Depending on the requirements, we use SIPROTEC devices for distance protection, differential protection, overcurrent protection or earth fault detection. Parameterization is carried out via DIGSI – individually tailored to your network structure and system requirements.
A protective relay continuously monitors electrical variables such as current and voltage and compares them with defined limit values. In the event of deviations – for example due to overcurrent, short circuit or underfrequency – it sends a trigger signal to the circuit breaker, which disconnects the affected section of the grid from the system. This prevents damage and increases operational and supply reliability. The relay can also detect the type and location of the fault and transmit this information to a control system.
UMZ protection (independent maximum current time protection) is used to protect cables, transformers and other equipment. It detects overcurrents via current transformers and compares them with a fixed response value. If the value is exceeded, a fixed time delay starts – regardless of the current level. Once this time has elapsed, the relay triggers and disconnects the affected section.
By staggering the tripping times of several relays, selective switch-off can be guaranteed – the nearest relay reacts first, while others respond with a delay.
