RI-tech s.r.o. > Produkty > Ostatní průmysl > Energetika > Monitorování obloukového zkratu

Monitorování obloukového zkratu

Ochrana před obloukovým zkratem pro rychlé zastavení obloukového zkratu na propojovacích lištách, v kovovém těle rozvaděče a přidružených kabelových boxech. Oblouk je detekován pomocí optického senzoru a vstupního signálu do ochranného zařízení, které rovněž monitoruje zatěžovací proud v systému.

Vypínací signál může být méně než 10 ms při použití pouze obloukové detekce nebo v rámci 15 ms při použití nadproudové kontroly. To je značně rychlejší než tradiční IDMT nadproudové relé a navíc poskytuje další ochranu před nástupem obloukových zkratů s relativně malými proudy.

  • 1S20 Arc Flash Monitor – 3 point sensors / 2 zones

     Description Medium voltage switchgear is a key element in the power supply chain. Existing protection systems operate effectively under most circumstances, but they are too slow to handle arcing short circuits. Arcing faults can occur as a result of insulation breakdown due to equipment age & / or poor maintenance. The degree of damage caused by arcing depends principally on the duration of the arc. If an arc lasts only…

  • 1S23 Arc Flash Module – 2 point sensors / 1 zone

     Description Arc fault protection is a relatively new technique employed for the fast clearance of arcing faults on BUS bars and within metal clad switchgear and associated cable boxes. The arc is detected using an optical sensor and the signal input to a protection device which also monitors the load current on the system. A trip signal can be achieved in less than 1ms using arc detection only or within…

  • 1S24 Arc Flash Monitor – 16 point or 12 point + 2 linear sensors / up to 16 zones

     Description Arc fault protection is a relatively new technique employed for the clearance of arcing faults on low voltage panels, MCC’s, BUS bars and within metal clad switchgear and associated cable boxes. Conventional current based protection techniques are at times challenged by the nature of arcing faults, and can result in slow protection clearance times. Slow protection clearance times increase the risk to nearby personnel and increase the degree of…

  • 1S25 Arc Flash Monitor – 8 point sensors / 4 zones

     Description (Pokračování textu…)

  • 1S26 Arc Flash Monitor – 8 point sensors / 4 zones + integrated current check

     Description Arc fault protection is a relatively new technique employed for the fast clearance of arcing faults on BUS bars & within metal clad switchgear & associated cable boxes. The arc is detected using an optical sensor & the signal input to a protection device which also monitors the load current on the system. A trip signal can be achieved in less than 10ms using arc detection only or within…

  • 1S30 Optical Arc Fault Point Sensor

     Description The 1S30 is an optical sensor that responds to the flash of light emitted during the incidence of an arcing fault. Onset of the light flash & detection by the 1S30 occurs in a few ms. Each arc fault sensor consists of one or two silicon PIN photodiode light detectors mounted on a circuit board together withan associated detection circuit. The detector monitors a wide space angle.and provides aAbroad…

  • 1S40 Optical Arc Fault Linear Sensor

     Description (Pokračování textu…)

  • Delta 1S27 Arc Flash Monitor – 4 point + 1 linear sensor / 3 zones (pre-release)

     Description Utilised in either new installations or as a simple retrofit in existing installations, the 1S27 provides high speed detection and signalling of arc flash hazards for application in air insulated metalclad switchgear. Arc Fault protection schemes may be implemented on an Arc only basis, or alternatively a Current Check may be employed where additional security is warranted. A current checked scheme may be implemented by making use of available…