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SEL - Model TPS -MV Switchgear for Secondary Distribution Networks
The TPS is a medium voltage switchgear range designed for secondary distribution networks, offering reliable switching operations from 7.2kV to 24kV. Its robust metal structure, composed of galvanized steel sheets assembled with rivets and bolts, ensures it can withstand the electrodynamic stresses encountered during operation. The switch and earthing switch are securely affixed to the structure, while an epoxy resin switch envelope facilitates effective insulation between the structure and live components. Front-mounted components include an operating mechanism, mechanical position indicator, and voltage indicator, providing essential operational feedback. An inspection window above the operating mechanism allows visibility of the main contacts, and a front door offers access to compartments for cables, fuses, and measurements. The addition of a low voltage auxiliary compartment can be situated in the upper section for expanded functionality.
TPS is a complete MV switchgear range suitable for all the switching operations from 7.2kV to 24kV in the secondary distribution network.
Operating safely in a distribution network requires different switching points to obtain maximum service continuity in case of fault on the network. TPS can be used in various applications in the secondary distribution network.
The switchboard is made of a metal structure composed of galvanized steel sheets that are assembled using rivets and bolts. This structure is built to withstand the electrodynamic stresses during the operation. A switch and earthing switch are fixed to this structure. A switch envelope made of epoxy resin makes the isolation possible between the structure and live parts. An operating mechanism, a mechanical position indicator and a voltage indicator are positioned in the front of the unit. The position of the switch is given by the mechanical indicator whereas the voltage signalling lamp indicates the presence of voltage. Visibility of main contacts can be checked through an inspection window positioned above the operating mechanism. In the front of the unit there is a door giving access to different compartments, e.g. cables, fuses and measurement. When the unit is equipped with a low voltage auxiliary compartment it is situated in its upper part.
- Cement industry
- Automotive industry
- Iron and steel works
- Windmills
- Solar plant
- Textile, paper and food industries
- Chemical industry
- Petroleum industry
- Pipeline installations
- Offshore installations
- Electrochemical plants
- Petrochemical plants
- Seaport and shipbuilding industry
- Diesel power plants
- Emergency power supply installations
- Traction power supply systems
- Stadium and sport center
- Insulation Voltage : Up to 24 kV
- Rated Frequancy : 50 – 60 Hz
- Rated Short time withstand current Ik :
- Up to 20 kA 24Kv
- Up to 21 kA 17Kv
- Up to 25 kA 12Kv
- Rated duration of short circuit tk : 1 – 3 s
- Degree of protection on front face : Indoor : IP 3X