Tlaletso Global Photonics (TGO) designs and manufactures laser diodes, VCSEL, DFB lasers, laser drivers, CDR circuits, optical modulators, TIAs, co-packaged optics, silicon photonics, linear drive plu...
Contact online >>
Line-protection relays must coordinate with the protective relays at the PG&E breakers for the line on which the generating facility is connected. The typical protective zone is a two-terminal
View more
During external faults, the relay changes to high-security mode and switches from Slope 1 to Slope 2 to avoid relay mal-operation resulting from CT saturation. In contrast to small CT errors for load current,
View more
Typically, 5A secondary although 1A secondary is available. Can be single or multi ratio (MR). Rule of thumb, select a ratio slightly larger than the rating of the circuit to be protected. Numerical relays
View more
These vendor-specific settings provide more flexibility and features for protection applications, however, they also increase the complexity of configuration management as they are not standardized and
View more
Transformer secondary protection sizing is critical for ensuring reliable fault protection, proper relay coordination, and optimized breaker selection in power distribution systems.
View more
A fast and selective arc fault mitigation for air-insulated LV & MV switchgear and Relion protection and control relays and sensor technology protect staff and plant facilities for many years.
View more
As the protected components of the electrical systems have changed in size, configuration and their critical roles in the power system supply, some protection aspects need to be revisited (i.e. the use of
View more
When underfrequency protection is employed, two underfrequency relays con-nected with “AND” tripping logic and connected to separate voltage sources are recommended to enhance scheme security.
View more
SEL software offers powerful tools for configuring protective relays, analyzing event reports, and visualizing other power system data. Protect critical components in your power system with a wide
View more
GE Multilin transformer protection relays are suitable for different transformer protection applications, including medium voltage and high voltage transformers of any size, dual secondary transformers,
View more
ABB''s Relion family of protection and control relays for secondary distribution offers a wide range of products for protection, control, measurement and supervision of power distribution systems for IEC
View moreHigh-power CW/pulsed laser diodes (808nm–1550nm) and VCSEL arrays for 3D sensing, LIDAR, and optical interconnects.
Co-packaged optics engines, silicon photonics ICs, and optical I/O solutions for high-density switches and AI clusters.
400G/800G QSFP-DD/OSFP modules, active optical cables, and custom optical engines for data center interconnects.
Low-jitter laser drivers, integrated CDR circuits, and linear TIAs for coherent optics and short-reach links.
We provide custom laser diodes, VCSEL arrays, DFB lasers, drivers, CDR, modulators, TIAs, co-packaged optics, silicon photonics, LPO, transceivers, and AOCs.
From prototype to mass production, our team ensures premium quality and technical support.
23 Photonics Avenue, Techno Park, Stellenbosch, 7600, South Africa
+27 63 148 2975 | +27 63 148 2975 | +86 138 2753 9641 | +86 138 2753 9641 | [email protected]