U<ANSI 27
Ahobammɔ a wɔbɔ wɔ ahoɔden a ɛba fam ho (ANSI 27) .
Trips when the voltage falls below the setting.
Relay banbɔ
AMR relay a wɔde ma
- Current ne voltage inputs sɛnea ɛho hia
- Digital input ne output sɛnea ɛho hia
- touch screen kɛse bi
- RS232 ne RS485 hyɛn gyinabea ahorow
- Mmoa a wɔde ma IEC 61850 nkitahodi nhyehyɛe
IEC 61850
communication protocol
RS232 · RS485
serial ports
Touch
large touch screen
Dwumadi ahorow a ɛbɔ wɔn ho ban
U>ANSI 59
Ahobammɔ a wɔbɔ wɔ ahoɔden a ɛboro so (ANSI 59) .
Trips when the voltage rises above the setting.
I>> / I>ANSI 50/51
Ahobammɔ a ɛnyɛ akwankyerɛ a ɛfa nsu a ɛboro so ho (ANSI 50-51) .
Instantaneous (50) and IDMT time-delayed (51) tripping on overcurrent and short circuit.
IE>> / IE>ANSI 50N/51N
Asase so ahobammɔ a ɛnyɛ akwankyerɛ (ANSI 50N-51N) .
Instantaneous and time-delayed protection against residual current and phase-to-earth faults.
I> →ANSI 67
Akwankyerɛ a ɛfa nsuo a ɛboro so ho banbɔ (ANSI 67-67 TOC) .
Overcurrent that checks the power direction, operating only for forward or reverse faults.
IE> →ANSI 67N
Akwankyerɛ Fa Fam Ahobammɔ (ANSI 67N-67N TOC) .
Directional earth fault, for ring networks and parallel feeders.
I2>ANSI 46
Negative component overcurrent ahobammɔ
Detects unbalance, broken conductors and single phasing from the negative-sequence current.
θ>ANSI 49
Nneɛma a ɛboro so ho banbɔ (ANSI 49) .
A thermal model of the plant that trips before a cable, transformer or motor overheats.
CBFANSI 50BF
Safoa huammɔdi ahobammɔ (ANSI 50BF) .
Trips the upstream breakers when a breaker fails to open after a trip command.
I> ↑CLP
awɔw mu adesoa a wɔde hu adwuma (CLP) .
Raises the settings for a while after a long-dead feeder is re-energised, avoiding nuisance trips.
I2f / I1fInrush
Inrush mprempren detection adwuma
Recognises transformer inrush from the second harmonic and blocks false trips.
Id>ANSI 87
Nsonsonoe ho banbɔ (ANSI 87) .
Compares the currents into and out of the plant and clears faults inside the zone fast.
Software no mu nneɛma a ɛwɔ hɔ
01Ɛwɔ software tebea a tumi wom na ɛnyɛ den sɛ wɔde bedi dwuma a wɔde hyehyɛ dwumadi ahorow
02Tumi a wotumi kyere oscillographs a ɛkɔ soro kodu 200, akwantu ho kyerɛwtohɔ
03Ɔwɔ mmarahyɛ akuw 4
04Signal Routing software module a wɔde ma dwumadie nsɛnkyerɛnneɛ ma relay inputs ne outputs
05Tumi a ɛde relay nhyehyɛe ahorow a ɛwɔ XRio format mu no fi adi
Relay adansedi nkrataa
- Tumi Nhwehwɛmu Asoɛe