Protection Relays
TADD1 – Breaker Fail Protection
Products family : Sector : Transmission The TADD1 causes tripping of circuit breakers connected to the same busbar a faulty feeder, in case of circuit breaker tripping. This is the only way, in a mesh network, ensure that the fault does not remain energized.
PMCS1 – Protection Cable Earth Fault
Products family : Feeder Protection Sector : Transmission The PMCS1 is an overcurrent protection with 2 thresholds for the protection of EHV cables: – The first low delay threshold (“sheath mass”) issues an alarm, without tripping. – The second high threshold (“Ground Cable”) causes an instantaneous trip.
PMLS355 – Line Overload Protection
Products family : Feeder Protection Sector : Transmission The line overload protection PMLS355 thresholds have 3 and 5 plans (designation 35). If prolonged exceeded one of these thresholds by the current line I command the circuit breaker protection associated with the line.
PMLS25D / PMLD2500 – Power Flow Protection
Products family : Feeder Protection Sector : Transmission The PMLS25D PMLD2500 protections and allow the unwinding of a high voltage network on a current measurement criterion when changing the direction of flow of power. Two alarm and trip thresholds are available, as well as five seasonal patterns.
DRSN1 / DRSN100 – Power Swing Protection
Products family : Voltage Protection Sector : Transmission Some lines 400 kV and 225 kV transmission network interconnect the power plant generators allowing them to remain synchronous: they are a synchronizing link. Worldwide, some major incidents have resulted in production losses of synchronism groups then GENERATE voltage beats on interconnection links; they could have significant…
ATRS11B – Recloser for EHV & HV networks
Products family : Feeder Protection Sector : Transmission ATRS is a dedicated recloser for HV or EHV. Its numerous optional functions allow operation on various networks. RTE, Réseau de Transport d’Electricité in France, has qualified ATRS as its only reclosing device.
TMS7003 / TMS7004 – Under and Overvoltage Relays
Products family : Voltage Protection Sector : Industry The optimum operation of an electrical network depends particularly on the reliability and the availability of the protection, measuring and automation devices, and the way these devices can communicate their informations. TMS 7000 relays are designed to monitor the voltage of three phase electrical networks either balanced…
IAE2000 / IAEH2000 – Overcurrent Relays
Products family : Current Protection Sector : Auxiliary relay IAE2000 and IAEH2000 relays are over current relays. They have the following advantages : – Precision and reliability – Compact size, – Immunity to HF disturbances, – Effective isolation between supply circuit, contacts and ground.
UAE2000 / UAEH2000 – Voltage Relays
Products family : Voltage Protection Sector : Auxiliary relay UAE2000 and UAEH2000 are over voltage relays featuring 3 user configurable contacts. They are used to monitor motors, transformers or generators. These relays have the following advantages : – Precision and reliability – Compact size, – Immunity to HF disturbances, – Effective isolation between supply circuit,…