D.C. Switchgear Range Type SECUB-2 - Secheron

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A domain of expertise With a complete range of equipment and a leading expertise in DC traction power substations, Sécheron SA is a world leader and major partner for electrification of DC traction networks. Covering all activities from calculation, network design and engineering, up to the production of the DC Systems, Sécheron SA can offer customers and partners tailor made solutions based on a modular concept and standard products. Our equipment is developed on world leading technology and proven worldwide design and acceptance. In-house technology covers all key devices applied in the DC Systems (rectifiers, DC HSCB, Disconnecting Switches, Protection relays, measuring amplifiers, etc.). SECUB-2: DC switchgear for light rail applications The SECUB-2 cubicle is a compact DC switchgear solution designed for DC traction substations powering light transportation systems such as tramways, LRT, trolleybuses, monorails and LIM. SECUB-2 completes the range of Sécheron DC switchgear that covers heavy duty transportation systems. SECUB-2 is the improved evolution of the SECUB which has widely been installed in various networks since more than 10 years. Main features • Rated current up to 2400 A (main circuit) • Rated voltage up to 900 Vdc • Metal enclosed switchgear compartment equipped with high-speed circuit-breaker • Bi-directional current interruption • Rated short-circuit current up to 100 kA (150 kA peak) • Equipped with a high-performance Protection and Control Relay type SEPCOS • Strong, compact and durable cubicle • Modular construction • Limited and easy maintenance • Designed according to EN 50123 & IEC 61992 standards New features: • Possibility to integrate a disconnecting switch in the rear compartment • Access from the front of the cubicle after having fully removed the drawer
Description The metal enclosed compartmented DC switchgear type SECUB-2 integrates three separated compartments for high and low voltage equipment: • Low voltage compartment including protection and control devices • High-speed circuit-breaker compartment • Rear high voltage busbar compartment including optional disconnecting switch Protection and control compartment Accessible from the front of the cubicle, the low voltage compartment includes the protection and control relay SEPCOS, the low voltage equipment (MCBs, relays etc.). High speed circuit breaker compartment The HV compartment includes the high-speed circuit-breaker which is mounted on a withdrawable drawer. The drawer can easily be drawn in or out of the cubicle and connected or disconnected from buses by means of power finger connectors. The HSCB’s auxiliary circuits can be connected or disconnected thanks to a multiple connector. The unlocking mechanism of the door ensures a trip of the HSCB before opening. Behind this door, a polycarbonate protecting screen ensures the security of personel and prevent contact with live parts. With the door open, the drawer can be drawn in or out with a handle located on the drawer frame (linked to a locking system). When the drawer has been drawn out, it can be easily placed on a trolley (optional) allowing easy maintenance operations and access inside the cubicle. The withdrawable circuit breaker drawer has four different positions: • Service • Test • Disconnected • Removed It is possible to see the physical state of the HSCB (opened or closed) as well as the drawer position (service or test) trough a window located on the front door. A counter showing the number of HSCB operation is also visible through this window. The drawer also contains a measuring shunt. The isolated amplifiers for current (MIU10) and voltage (VM10) measurement as well as the line test components are mounted on a retractable plate located below the drawer. With the plate removed, the power cable connection compartment is easily accessible inside the cubicle. This feature makes the installation against the wall possible. This compartment is separated from the busbar compartment thanks to isolating shutters. Rear high voltage busbar compartment The busbar rear compartment is composed of two main parts: • Main incoming busbar • Connection for outgoing cables, copper bars are provided to connect the power cable to the third rail or the catenary • As an option, an off load disconnecting switch can be mounted to insure the by-pass or line isolating function
Page 1: SUBSTATIONS D.C. Switchgear Range T
Page 5 and 6: Main dimensions 1. Circuit-breaker
Page 7 and 8: Full compact lightrail solution Wit

D.C. Switchgear Range Type SECUB-2 - Secheron

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