ABB REG316 4 Series Operating Instructions Manual page 9

REG 316*4 1MRB520049-Uen / Rev. B
1.2. Application
The REG 316*4 numerical generator protection has been
designed for the high-speed discriminative protection of small
and medium size generators. It can be applied to units with or
without step-up transformer in power utility or industrial power
plants.
REG 316*4 places relatively low requirements on the perform-
ance of c.t's and v.t's and is independent of their characteristics.
1.3. Main features
REG 316*4's library of protection functions includes the follow-
ing:
generator differential
·
transformer differential
·
definite time over and undercurrent
·
·
peak value overcurrent
·
voltage-controlled overcurrent
·
inverse time overcurrent
·
directional definite time overcurrent
·
protection
directional inverse time overcurrent
·
protection
definite time NPS
·
inverse time NPS
·
definite time over and undervoltage
·
peak value overvoltage
·
underimpedance
·
underreactance
·
power protection
·
stator overload
·
rotor overload
·
frequency
·
rate-of-change frequency protection
·
overexcitation
·
inverse time overexcitation
·
voltage comparison
·
overtemperature
·
100 % stator ground fault
·
100 % rotor ground fault
·
pole slipping
·
provision for inrush blocking
ABB Switzerland Ltd
(Diff-Gen)
(Diff-Transf )
(Current-DT)
(Current-Inst)
(Imax-Umin)
(Current-Inv)
(DirCurrentDT)
(DirCurrentInv)
(NPS-DT)
(NPS-Inv)
(Voltage-DT)
(Voltage-Inst)
(Underimped)
(MinReactance)
(Power)
(OLoad-Stator)
(OLoad-Rotor)
(Frequency)
(df/dt)
(Overexcitat)
(U/f-Inv)
(Voltage-Bal)
(Overtemp)
(Stator-EFP)
(Rotor-EFP)
(Pole-Slip)
1-3