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Beskermingsrelês

AMR-aflos

  • Stroom- en spanningsinsette soos benodig
  • Digitale invoer en afvoer soos benodig
  • Groot raakskerm
  • RS232- en RS485-poorte
  • Ondersteuning vir IEC 61850 kommunikasie protokol
AMR-aflos
  • IEC 61850

    communication protocol

  • RS232 · RS485

    serial ports

  • Touch

    large touch screen

Beskermende funksies

U<ANSI 27

Onderspanningbeskerming

Trips when the voltage falls below the setting.

U>ANSI 59

Oorspanningbeskerming

Trips when the voltage rises above the setting.

I>> / I>ANSI 50/51

Nie-rigting-oorstroombeskerming

Instantaneous (50) and IDMT time-delayed (51) tripping on overcurrent and short circuit.

IE>> / IE>ANSI 50N/51N

Nie-rigting aardingsbeskerming

Instantaneous and time-delayed protection against residual current and phase-to-earth faults.

I> →ANSI 67

Rigting-oorstroombeskerming

Overcurrent that checks the power direction, operating only for forward or reverse faults.

IE> →ANSI 67N

Rigtinggrondbeskerming

Directional earth fault, for ring networks and parallel feeders.

I2>ANSI 46

Negatiewe komponent oorstroombeskerming

Detects unbalance, broken conductors and single phasing from the negative-sequence current.

θ>ANSI 49

Oorladingsbeskerming

A thermal model of the plant that trips before a cable, transformer or motor overheats.

CBFANSI 50BF

Sleutelfoutbeskerming

Trips the upstream breakers when a breaker fails to open after a trip command.

I> ↑CLP

koue lading opsporing funksie (CLP)

Raises the settings for a while after a long-dead feeder is re-energised, avoiding nuisance trips.

I2f / I1fInrush

Inrush stroom opsporing funksie

Recognises transformer inrush from the second harmonic and blocks false trips.

Id>ANSI 87

Differensiële beskerming

Compares the currents into and out of the plant and clears faults inside the zone fast.

Sagteware kenmerke

01Dit het 'n kragtige en maklik-om-te gebruik sagteware-omgewing vir die opstel van verskeie funksies
02Vermoë om tot 200 ossillograwe, triplog op te neem
03Het 4 regulatoriese groepe
04Seinroetering sagteware module vir die toewysing van funksie seine aan herlei insette en uitsette
05Vermoë om aflosinstellings in XRio-formaat uit te voer

Aflos sertifikate

  • Kragnavorsingsinstituut