qúatro-grid® prides itself on being one of the leading manufacturers of Disconnectors (Switches) in the world. qúatro-grid offers flexible and reliable layout configurations up to 1,200 kV designed and tested to support international standards such as IEEE, IEC and GB (China).
From scorching hot climates to extreme cold environments, and areas of intense seismic activity, qúatro-grid solutions are field proven with installations across the globe.
qúatro-grid disconnectors are available in a variety of physical forms based on substation configurations and a space requirements. Our highly experienced engineers and technicians can provide expert advice and support in defining customized solutions.
qúatro-grid disconnectors (DSC) for HVDC applications are designed to specific constraints and requirements typical for DC applications, that are quite different compared to AC applications. They are requested to withstand DC voltage open gap and to ground to ensure safety for the people in the substation and to permit proper and safe layout configuration. In some cases, like for filter applications, they are requested to break a sum of harmonic currents at a certain voltage (amply smaller than the rated voltage of the disconnector) due to the ripple created by harmonics on the reactances.
All these DC disconnectors take benefit of huge experience and installed base of AC disconnector technology delivered worldwide in regards to design technology and quality e.g. supplier qualification, assembly processes or ISO conformity.
qúatro-grid medium voltage disconnector switches are 3-phase devices that control the medium voltage of the electric grid through connecting and disconnecting the medium voltage of the electric circuit when the circuit is unloaded. In addition, these disconnectors are three-pole type and all poles are controlled by a mutual control mechanism and they can be mounted on a wall or a vertical plane. Furthermore, these disconnector switches are made of chassis, supporting insulators, blade-shaped movable contacts, fixed contacts, mechanical devices for connecting and disconnecting the moving contacts, lock assembly, and blade disconnectors. These disconnectors are divided into two main types according to their used environment which are indoor or outdoor. The indoor and outdoor disconnectors are also divided into subcategory according to there protection type which is fused and non-fused disconnectors. The main use of these disconnectors is meant for maintenance purposes.
qúatro-grid offers tap, terminal, splice and non current carrying connectors.The qúatro-grid portfolio offers an extensive range of HV power connectors for substations. Several other types of connectors not mentioned are available, or can be specifically designed.
The test results and field experience demonstrate that the qúatro-grid design criteria provides the best performance for connectors applications up to and over 800 kV, both for AC and DC applications.
qúatro-grid’s connectors have been supplied to many customers worldwide.
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Ümit, 2447. Sokak, postcode: 06810 Çankaya/Ankara
CALL CENTER: +90 534 345 19 09 info@hvgrid-supplier.com
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Ümit, 2447. Sokak, postcode: 06810 Çankaya/Ankara /Türkiye
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