U<ANSI 27
Fiarovana ambany volt
Trips when the voltage falls below the setting.
Relay fiarovana
Relay AMR
- Fampidirana amin'izao fotoana izao sy malefaka raha ilaina
- Fampidirana sy fivoahana nomerika raha ilaina
- Ecran fikasihana lehibe
- RS232 sy RS485 seranana
- Fanohanana ny protocol fifandraisana IEC 61850
IEC 61850
communication protocol
RS232 · RS485
serial ports
Touch
large touch screen
Asa fiarovana
U>ANSI 59
Fiarovana overvoltage
Trips when the voltage rises above the setting.
I>> / I>ANSI 50/51
Fiarovana mahery vaika tsy misy tari-dalana
Instantaneous (50) and IDMT time-delayed (51) tripping on overcurrent and short circuit.
IE>> / IE>ANSI 50N/51N
Fiarovana tsy misy tondrozotra
Instantaneous and time-delayed protection against residual current and phase-to-earth faults.
I> →ANSI 67
Fiarovana mahery vaika
Overcurrent that checks the power direction, operating only for forward or reverse faults.
IE> →ANSI 67N
Fiarovana ara-tondro
Directional earth fault, for ring networks and parallel feeders.
I2>ANSI 46
Fiarovana mahery vaika singa ratsy
Detects unbalance, broken conductors and single phasing from the negative-sequence current.
θ>ANSI 49
Fiarovana be loatra
A thermal model of the plant that trips before a cable, transformer or motor overheats.
CBFANSI 50BF
Fiarovana tsy fahombiazana lehibe
Trips the upstream breakers when a breaker fails to open after a trip command.
I> ↑CLP
Fandefasana entana mangatsiaka (CLP)
Raises the settings for a while after a long-dead feeder is re-energised, avoiding nuisance trips.
I2f / I1fInrush
Inrush miasa amin'izao fotoana izao detection
Recognises transformer inrush from the second harmonic and blocks false trips.
Id>ANSI 87
Fiarovana tsy mitovy
Compares the currents into and out of the plant and clears faults inside the zone fast.
Ny endri-javatra rindrambaiko
01Manana tontolo rindrambaiko matanjaka sy mora ampiasaina izy io mba hametrahana fiasa isan-karazany
02Fahaizana mirakitra hatramin'ny 200 oscillographs, diary
03Manana vondrona 4 mifehy
04Module logiciel Signal Routing ho an'ny fanendrena famantarana fiasana hampita ny fidirana sy ny vokatra
05Fahaizana mamoaka rindran-damina amin'ny endrika XRio
Certificat relay
- Power Research Institute