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...
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High precision settings allow the primary side relay to better protect the full damage curve of the transformer (both three phase and unbalanced damage curves).
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Among the various possible methods used to achieve correct relay co-ordination are those using either time or overcurrent, or a combination of both. The common aim of all three
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When the protection is implemented using a current relay, the current value at which the relay should operate must be determined first. By means of the stabilizing voltage and the current setting, the
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As we are more familiar with settings based on how we set the electromechanical relays, this section describes the ways to set the SEPAM relay for phase over-current protection, in close relation to the
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Effective relay protection in HV/MV substations requires a thorough approach encompassing calculations, precise settings, meticulous coordination, informed relay selection, and
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Time and current settings of IAC relays are made by se-lecting the proper current tap and adjusting the time dial to the number which corresponds to the characteristic re-quired.
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Phase Failure Relay (Voltage Monitoring Relay) working diagram with correct wiring, applications and protection logic. Learn how phase sequence, under-voltage, over-voltage and
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Distance relays, also known as impedance relay, differ in principle from other forms of protection in that their performance is not governed by the magnitude of the
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A-phase relay uses A-phase current and VBC voltage. The relay is built such that the angle of maximum torque occurs for phase current lagging the unity power positi
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It is necessary to maintain a proper balance between the current and phase of the motor. Any imbalances lead the motor to overheat and experience mechanical stress.
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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 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 | [email protected]