U<ANSI 27
Ukukhuselwa ngaphantsi kombane
Trips when the voltage falls below the setting.
Ii-relay zokukhusela
Ugqithiso lwe-AMR
- Amagalelo angoku kunye nombane njengoko kufuneka
- Igalelo ledijithali kunye nemveliso njengoko kufuneka
- Isikrini esikhulu sokuchukumisa
- RS232 kunye RS485 izibuko
- Inkxaso yonxibelelwano lwe-IEC 61850 protocol
IEC 61850
communication protocol
RS232 · RS485
serial ports
Touch
large touch screen
Imisebenzi yokukhusela
U>ANSI 59
Ukukhuselwa kombane ogqithisileyo
Trips when the voltage rises above the setting.
I>> / I>ANSI 50/51
Ukukhuselwa kwe-Overcurrent non-directional
Instantaneous (50) and IDMT time-delayed (51) tripping on overcurrent and short circuit.
IE>> / IE>ANSI 50N/51N
Ukukhuselwa komhlaba okungekho mkhombandlela
Instantaneous and time-delayed protection against residual current and phase-to-earth faults.
I> →ANSI 67
Ukhuseleko olugqithisiweyo lwe-Directional
Overcurrent that checks the power direction, operating only for forward or reverse faults.
IE> →ANSI 67N
UKhuseleko oluNxibelela phantsi
Directional earth fault, for ring networks and parallel feeders.
I2>ANSI 46
Ukhuseleko lwecandelo elibi
Detects unbalance, broken conductors and single phasing from the negative-sequence current.
θ>ANSI 49
Ukukhuselwa kokugqithiswa
A thermal model of the plant that trips before a cable, transformer or motor overheats.
CBFANSI 50BF
Ukukhuselwa kokusilela okungundoqo
Trips the upstream breakers when a breaker fails to open after a trip command.
I> ↑CLP
umsebenzi wokubona umthwalo obandayo (CLP)
Raises the settings for a while after a long-dead feeder is re-energised, avoiding nuisance trips.
I2f / I1fInrush
Inrush yangoku umsebenzi wokufumanisa
Recognises transformer inrush from the second harmonic and blocks false trips.
Id>ANSI 87
Ukukhuselwa okwahlukileyo
Compares the currents into and out of the plant and clears faults inside the zone fast.
Iimpawu zeSoftware
01Inommandla wesoftware onamandla kwaye kulula ukuyisebenzisa ukuseta imisebenzi eyahlukeneyo
02Ukukwazi ukurekhoda ukuya kuma-oscillographs angama-200, uhambo lokuhamba
03Unamaqela ama-4 olawulo
04Imodyuli yoMqondiso wesoftware yokunikezela ngemiqondiso yokusebenza ukuhambisa amagalelo kunye neziphumo
05Ukukwazi ukukhupha useto lwe-relay kwifomathi ye-XRio
Izatifikethi zokudlulisa
- Power Research Institute