ABB REG216 1MRB520004 Classic
Features • Modular hardware
• Selectable protection functions
• Multitude of applications
• Menu-assisted setting with PC
• Fully numerical signal processing
• Continuous self-monitoring of hardware
• Cyclical testing routines mostly performed
by the software
• Setting of parameters and recording of the
settings by PC
• Display of measured values
• Display of events, their acknowledgment
and printout
• Disturbance recording
• Self-documentation
• Long-term stability
• Communication and coordination with sta tion control
• Two design versions available; REG216 /
REG216 Classic.
Application The REG216 is intended for the protection of
generators and block transformers.
The modular hardware and software design
allows an extremely flexible installation.
Simplicity of adaption to the size of the pri mary system and the desired protection
schemes are achieved through the combi nation of a software library and hardware
modules. Economic solutions can thus be
achieved in the full range of applications for
which it is intended.
The REG216 software system offers a library
of protective functions. Functions suitable for
generator and transformer protection are lis ted in the table below.
Different degrees of redundancy can be selec ted. Availability and reliability of the protec tion can be chosen to suit the application by
duplicating e.g. auxiliary supply units of the
whole system.
Standard interfaces make REG216 compati ble with different process control systems.
Data exchange with higher process control
levels are possible, e.g. one-way reporting of
digital states and events, measured values and
protection parameters.
REG216 and REG216 Classic differ with
regard to the binary process connection:
- REG216 uses the E/A-module 216GD61a.
- The REG216 Classic uses the modules
216GE61 / 216GA61 and 216GA62.

Application (cont´d)
ABB Switzerland Ltd
Power Technology Systems
Protection functions: ANSI
code Description
Generator differential
Power transformer differential
87G
87T
three-phase
three-phase for 2- and 3-winding transformers
Definite time overcurrent (undercurrent)
Overcurrent or undercurrent with peak value
evaluation
Restricted earth fault
Voltage-controlled overcurrent
Inverse time overcurrent
Directional definite time overcurrent
Directional inverse time overcurrent
Negative phase sequence current
Definite time overvoltage (undervoltage)
100% stator and rotor earth fault
protection
Dead machine protection
51
50
87N
51/27
51
67
67
46
59
27
64
64 S
64 R
50AE
definite time delay, for phase and earth-fault, over and undercurrent
instantaneous operation or with definite time delay,
value evaluation wide frequency range, over- and undercurrent
overcurrent operation with definite time delay*
operation restrained by undervoltage
inverse current dependent time delay, for phase and
earth fault (51N)
definite time tripping
inverse time tripping
negative phase sequence current with definite time delay or
inverse time delay with thermal replica
definite time delay, over- and undervoltage
Applicable also for
- stator E/F (95%) (59 G/N)
- rotor E/F (64 R) **
- intertum fault protection
based on the displacement principle calculation of the
earth fault resistance.
in addition the units REX010 and REX011 are required
Underimpedance
Minimum reactance
Pole slip protection
High-voltage distance protection
Distance protection
21
40
78
21Z<HV
21Z<
circular characteristics centered at origin of impedance plane
circular characteristics for loss of excitation protection
detecting loss of synchronism of a generator as against the net work
6-system high-voltage protection
distance protection with overcurrent or underimpedance starting
Power 32
37
any characteristic angle, over and underpower for:
- active power
- reactive power
- reverse power protection
- minimum forward power
Overload
Negative phase sequence current
Overtemperature
49
46
49
thermal replica with operating characteristic
according to ASA-C50.13*** for:
- standard stator current (49 S)
- rotor current (49 R)
evaluation of negative phase sequence of currents
inverse time delay;
with terminal replica
thermal protection with precise thermal replica
Frequency
Rate-of-change of frequency
Overexcitation
Voltage balance
Voltage peak value evaluation
Synchro check
Breaker failure protection
81
81
24
60
59/27
25
50BF
evaluation of voltage input
df/dt
voltage/frequency protection (81/27)
definite time delay or inverse time delay (81/27)
monitoring/comparing two groups of single- or three-phase volt age
instantaneous operation with definite time delay
supervision of phase angle frequency and voltage level of two
systems
Logical functions AND, OR, flip-flop, time delay, counter
* with external hardware: stabilizing resistor, voltage-dependent resistor
** with external hardware: measuring bridge YWX111-..., coupling condensers
***ASA = American Standard Association
Aside from these typical generator protection functions the entire library of the RE.316*4 platform is also available (e.g. distance
protection, autoreclosure, I0 inverse, etc.). For more details see the Operating Instructions of REG216