U<ANSI 27
Kev tiv thaiv undervoltage
Trips when the voltage falls below the setting.
Relay tiv thaiv
AMR relay
- Tam sim no thiab voltage inputs raws li xav tau
- Digital input thiab output raws li xav tau
- Loj kov npo
- RS232 thiab RS485 chaw nres nkoj
- Kev them nyiaj yug rau IEC 61850 kev sib txuas lus raws tu qauv
IEC 61850
communication protocol
RS232 · RS485
serial ports
Touch
large touch screen
Kev tiv thaiv muaj nuj nqi
U>ANSI 59
Kev tiv thaiv overvoltage
Trips when the voltage rises above the setting.
I>> / I>ANSI 50/51
Kev tiv thaiv tsis yog kev taw qhia overcurrent
Instantaneous (50) and IDMT time-delayed (51) tripping on overcurrent and short circuit.
IE>> / IE>ANSI 50N/51N
Kev tiv thaiv tsis ncaj nraim hauv av
Instantaneous and time-delayed protection against residual current and phase-to-earth faults.
I> →ANSI 67
Kev tiv thaiv kev taw qhia overcurrent
Overcurrent that checks the power direction, operating only for forward or reverse faults.
IE> →ANSI 67N
Directional Grounding Protection
Directional earth fault, for ring networks and parallel feeders.
I2>ANSI 46
Kev tiv thaiv tsis zoo tiv thaiv overcurrent
Detects unbalance, broken conductors and single phasing from the negative-sequence current.
θ>ANSI 49
Kev tiv thaiv overload
A thermal model of the plant that trips before a cable, transformer or motor overheats.
CBFANSI 50BF
Qhov tseem ceeb tsis ua hauj lwm tiv thaiv
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 tam sim no nrhiav tau muaj nuj nqi
Recognises transformer inrush from the second harmonic and blocks false trips.
Id>ANSI 87
Kev tiv thaiv sib txawv
Compares the currents into and out of the plant and clears faults inside the zone fast.
Software nta
01Nws muaj lub zog thiab yooj yim-rau-siv software ib puag ncig rau kev teeb tsa ntau yam haujlwm
02Muaj peev xwm sau txog li 200 oscillographs, kev mus ncig ua si
03Muaj 4 pawg tswj hwm
04Lub teeb liab Routing software module rau kev xa cov teeb liab muaj nuj nqi rau relay inputs thiab outputs
05Muaj peev xwm tso zis relay chaw hauv XRio hom
Relay daim ntawv pov thawj
- Lub koom haum tshawb fawb fais fab