U<ANSI 27
Proteksyon sa undervoltage
Trips when the voltage falls below the setting.
Mga protection relay
AMR relay
- Mga input ng kasalukuyang at boltahe kung kinakailangan
- Digital input at output kung kinakailangan
- Malaking touch screen
- RS232 at RS485 port
- Suporta para sa IEC 61850 na protocol ng komunikasyon
IEC 61850
communication protocol
RS232 · RS485
serial ports
Touch
large touch screen
Mga pag-andar ng proteksyon
U>ANSI 59
Proteksyon sa sobrang boltahe
Trips when the voltage rises above the setting.
I>> / I>ANSI 50/51
Non-directional overcurrent na proteksyon
Instantaneous (50) and IDMT time-delayed (51) tripping on overcurrent and short circuit.
IE>> / IE>ANSI 50N/51N
Proteksyon sa non-directional grounding
Instantaneous and time-delayed protection against residual current and phase-to-earth faults.
I> →ANSI 67
Proteksyon ng overcurrent ng direksyon
Overcurrent that checks the power direction, operating only for forward or reverse faults.
IE> →ANSI 67N
Proteksyon sa Directional Grounding
Directional earth fault, for ring networks and parallel feeders.
I2>ANSI 46
Negatibong bahagi ng overcurrent na proteksyon
Detects unbalance, broken conductors and single phasing from the negative-sequence current.
θ>ANSI 49
Proteksyon sa sobrang karga
A thermal model of the plant that trips before a cable, transformer or motor overheats.
CBFANSI 50BF
Proteksyon ng key failure
Trips the upstream breakers when a breaker fails to open after a trip command.
I> ↑CLP
cold load detection function (CLP)
Raises the settings for a while after a long-dead feeder is re-energised, avoiding nuisance trips.
I2f / I1fInrush
Inrush kasalukuyang function ng detection
Recognises transformer inrush from the second harmonic and blocks false trips.
Id>ANSI 87
Differential na proteksyon
Compares the currents into and out of the plant and clears faults inside the zone fast.
Mga tampok ng software
01Mayroon itong malakas at madaling gamitin na kapaligiran ng software para sa pagse-set up ng iba't ibang function
02Kakayahang mag-record ng hanggang 200 oscillographs, trip log
03May 4 na pangkat ng regulasyon
04Module ng software ng Signal Routing para sa pagtatalaga ng mga signal ng function upang i-relay ang mga input at output
05Kakayahang mag-output ng mga setting ng relay sa format na XRio
Mga sertipiko ng relay
- Power Research Institute