RI-tech s.r.o. > Produkty > Ostatní průmysl > Energetika > Ochranná relé > Proudová ochrana

Proudová ochrana

Relé pro sledování proudu poskytují vysokorychlostní nadproudovou ochranu. Relé pro snímání střídavého nebo stejnosměrného proudu navržená pro vysokonapěťové nebo nízkonapěťové napájecí systémy, kde mohou být použity ve velkém počtu nadproudových aplikací.

  • Mžikové proudové relé
  • Nadproudové relé s vlastním napájením

  • 2C138 Sensitive Earth Fault Relay

     Features High sensitivity (0.1% of Is) 3rd harmonic & HF noise suppression Tuned to 50 Hz Optional reset functions: Instantaneous (Fast), definite time, count down 40-300V DC aux. supply 20-70V DC aux. optional Low CT burden & high thermal rating Optional 1A or 5A CT input Instantaneous pick up LED Configurable output contacts 0-31s time delay (125ms steps) Push button / electrical flag reset Non-volatile trip indication Multi voltage inhibit…

  • 2C63 Current Check / CB Fail Relay

     Features 10:1 PU setting ranges 5 – 50% or 20 – 200% of nominal input current 1A or 5A nominal CT’s Fast reset times(<15ms at 20x setting, repeated offset) <5% transient over-reach Two time delayed C/O output contacts Three time delayed or inst. phase segregated(<20ms at 2x setting) C/O contacts 0 to 99s time delayed output with +0.5% accuracy Time settings easily selected by digital thumb wheel switches Timing in…

  • 2C65 Current Check Relay

     Features 10:1 PU setting ranges 5 – 50% or 20 – 200% of nominal input current 1A or 5A nominal CT’s Fast inst. O/C pick up (<15ms at 2x setting) Fast O/C reset time    (<15ms at 2x setting) <5% transient over-reach Eight C/O output contacts 0 to 99s time delayed output with +0.5% accuracy Time settings easily selected by digital thumb wheel switches Timing in progress LED Five status inputs…

  • 2C720 700 Series AC Current Sensing Relay

     Features AC Current Sensing Relay Ten year factory warranty Plug in measuring module Double insulated high impact polystyrol case Termination socket included for surface mounting enabling front or rear connection with optional DIN rail mounting Proven circuit designs based on over 15 years of field service in hundreds of varied & demanding applications Easy to set calibration scales Tolerance to shock & vibration for generator, compressor & mobile applications Description…

  • 2C74 Instantaneous Current Relay

     Features High speed operation High sensitivity 50Hz or 60Hz operation Seven (7) current settings using a plug bridge Choose from 5 setting ranges <10ms operation at 5x setting Hand reset mechanical flag 2 N/O trip contacts Rugged attracted armature sensing element Use 3 independent units for 3 phase applications Size 2M28 draw out case Made in Australia Description The 2C74 relay provides high speed overcurrent protection for various items of…

  • 2C81 DC Current Sensing Relay

     Features High sensitivity 40-300V DC auxiliary supply Power supply fail relay drops out if the auxiliary supply fails. Optional 20-70V DC supply Optional mV input ranges Custom front dial calibration scale Two C/O output contacts One C/O fail alarm contact Optional delay timer Current pick up LED indication Power supply healthy LED indication Size 2M28-S draw out case Made in Australia Description The 2C81 is a DC current measuring relay.…