Toshiba GRT100 Series User manual

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GRT100
2
FEATURES
 Fully numerical transformer protection
 Current differential protection for two-winding
or three-winding transformers
 High-set differential overcurrent protection
 No interposing CTs required
 CT ratio and vector group compensation
 Restricted earth fault protection
 Time-overcurrent protection
 Thermal overload protection
 Overexcitation protection
 Frequency protection
 Configurable binary outputs
 Automatic monitoring
 Metering and recording functions
 Menu-driven user interface
 Two serial ports for a local PC and a remote PC
 IRIG-B port for external clock
APPLICATION
GRT100 is a numerical transformer protection relay,
which can be applied for two-winding or three-winding
power transformers, auto-transformers and generator-
transformer units.
GRT100 provides the following protection schemes.
 The current differential protection is applied for fast
and selective main protection. This protection
requires no interposing CTs and provides stability
against magnetizing inrush and overexcitation.
 The restricted earth fault protection detects internal
earth faults where the transformer star point is
directly or low impedance earthed and can be applied
on high-voltage and low-voltage side respectively.
 The time-overcurrent protection is mainly used as
backup protection and can be applied on high- and
low-voltage side respectively.
 The thermal overload protection protects the
insulation against thermal stress and provides two
independently set levels for alarm and tripping.
 The overexcitation protection provides alarm and
tripping.
 The frequency protection operates on over-
frequency and underfrequency and provides load
shedding.
GRT100 provides the following metering and
recording functions.
 Metering (current, voltage, frequency)
 Fault recording
 Event recording
 Disturbance recording
GRT100 provides the following user interfaces for
relay setting or viewing of stored data.
 Relay front panel: LCD, LED display and operation
keys
 Local PC
 Remote PC
The relay can be accessed from a local PC or a
remote PC through communication ports.
A local PC can be connected to the relay via the
RS232C port on the front fascia of the relay and a
remote PC can be connected to the relay through the
RS485 port at the rear of the relay.
GRT100 has two models which differ according to the
number of three-phase current inputs for differential
protection.
Model 100 - For 2-winding transformers requiring
2 three-phase current inputs
Model 200 - For 3-winding transformers and all
power transformers requiring 3 three-
phase current inputs
Transformer configuration and applicable model:
Configuration No. of current
inputs
Applicable to:
2 Model 100
3 Model 200
3 Model 200
3 Model 200
HV
LV
HV
LV1 LV2
HV
LV
HV
LV
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GRT100
3
FUNCTIONS
 Current Differential Protection
GRT100 provides fast, selective protection for two-
and three-winding transformers. It has three phase-
segregated differential elements, each with a dual-
slope, percentage differential characteristic as shown
in Figure 1.
Ires
Id
Small current
characteristic
(Slope p1=10 - 100%)
Operating zone
Id: Differential current (|IA+ IB + IC|)
I
res: Restraining current ((|IA| + |IB| + |IC|)/2)
I
set: Sensitivity setting of small current characteristic
Kp: Sensitivity setting of large current characteristic
Large current
characteristic
(Slope p2=50 - 200%)
Id= 2Ires
kp
Slope 1
Slope 2
Iset
0
IA
IB IC
Figure 1. Percentage differential element
Slope 1 provides sensitivity to low level faults. For
higher level faults, slope 2 with increased bias
compensates for the effects of CT saturation.
GRT100 includes internal vector group compensation
and CT ratio correction, so that the relay requires no
interposing CTs.
During periods of transformer energization, the use of
a second harmonic restraint method blocks the relay
operation.
When the transformer is overexcited due to a
transient power system disturbance, the use of a fifth
harmonic restraint method blocks the relay operation.
 High-set Differential Overcurrent
Protection
GRT100 also includes high-set unrestrained
overcurrent element applied in the differential circuit
and ensures rapid clearance of heavy internal faults.
 Restricted Earth Fault Protection
Employing residual current of each winding and
neutral point current, Restricted Earth Fault (REF)
protection provides a highly sensitive differential
protection for earth faults in a transformer which has
a star point directly earthed or low impedance earthed.
The REF element has a dual slope, percentage
characteristic as shown in Figure 2 and the
independent elements can be applied for each
transformer winding.
Iod: Residual differential current (|3I0+ IN|)
Ires: Restraining current (Max.(IA, IB, IC, IN))
Iset: Sensitivity setting of small current characteristic
Kp: Sensitivity setting of large current characteristic
I0d
Slope 2
(p2 = 50 – 100%)
Slope 1 (p1 = 10%)
Iset
kp Ires
Operating
zone
3I0
IN
I0d = Ires
Figure 2. Characteristic of REF
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GRT100
4
 Time-overcurrent Protection
The overcurrent protection can be applied to two- or
three-windings for phase-to-phase faults, and neutral
points of the transformer for phase to earth faults on
the high- and low-voltage side to provide backup
protection. The inverse time overcurrent elements
conform to either of three IEC standard characteristics
(Standard inverse, Very inverse, and Extremely
inverse) or a Long-time inverse characteristic. The
characteristics of each element are shown in Figure
3.
The high-set overcurrent element provides an instantaneous
or definite time overcurrent protection.
Figure 3. Characteristics of inverse time delayed
overcurrent element
 Thermal Overload Protection
(alarming and/or tripping)
The characteristics are exponential functions according
to IEC 60255-8 standard and take into account the
I2Rlosses due to the particular operational current
and the simultaneous cooling due to the coolant. In
this way the tripping time during an overload condition
takes the pre-overload into consideration. An alarm
can be set to operate before reaching the tripping
condition.
Thermal image:
I
2- Ip2
I
2- (k IB)2
(I
2- Ip2)(1-TA /τ)
I
2- (k IB)2
where
t: Operating time
τ: Thermal time constant
k: Constant
I: Relaycurrent
I
B: Basic current
Ip: Specified load current before the overload
occurs
TA: Time for alarm
Figure 4. Characteristic of thermal overload element
 Frequency Protection
GRT100 has two frequency elements, which provide
the following schemes:
 Underfrequency protection
 Overfrequency protection
Trip: t =τln
Alarm: t =τln
Trip
I
A
larm
0
K ⋅IB
t
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GRT100
5
 Overexcitation Protection
A single phase to phase connected voltage input is
provided to detect overexcitation. Alarms and tripping,
based on a measurement of the voltage/frequency
ratio are provided. The voltage/frequency ratio is
calculated using per unit quantities.
The alarm is definite time delayed whilst the characteristic
may be selected as either having a definite time or an
inverse time delay, as shown in Figure 5.
sec
V/Hz
0
L
H
TVFA LT HT
(log T)
A
TVFH
A
: Alarm level
H: High level (definite time tripping)
L: Low level
(
pick up level
)
TVFH: Definite time dela
y
for hi
g
hlevel
HT: Inverse time delay-1
LT: Inverse time delay-2
TVFA: Definite time delay for alarm level
Figure 5. Characteristic of overexcitation element
 AC Inputs and Protection Elements
Figure 6 shows the typical relationship between the
AC inputs and protection elements.
GRT100-101/102
CT
CT
CT
VT
HV
LV
CT
1OC/1OCI
FRQ V/F
1EF/1EFI
2OC/2OCI
2EF/2EFI
Calculate 3I0
DIFT
Calculate 3I0
THR
1REF
2REF
DIFT: Current differential protection
REF: Restricted earth fault protection
OC/OCI, EF/EFI: Overcurrent backup protection
THR: Thermal overload protection
V/F: Overexcitation protection
FRQ: Frequency protection
Figure 6. AC inputs and protection elements
 Trip and/or Indication of External
Protection Devices
External signals such as overpressure devices and
Buchholz relay operation, can be applied through 4
binary input circuits. Logic can be arranged for alarms,
event recording and tripping. The binary input circuit
is provided with a logic level inversion function.
For redundancy it is recommended to route tripping
from the Buchholz or overpressure device in parallel
to the relay.
HARDWARE
Figure 7 shows the hardware block diagram of the
relay.
The relay is a multiple microprocessor design. The
microprocessors perform software functions such as
signal processing, protection algorithm, scheme logic,
output relay control and management of the user
interface.
Phase voltage analog inputs are provided, residual
current inputs and phase voltage inputs. The number
of analog inputs depends on the model of the relay.
The internal auxiliary transformers are used to isolate,
step down and condition the inputs from the VT and
CTs. Their output signals are then converted into
digital data for further processing.
The front panel provides a 4 x 40 character, liquid
crystal display (LCD) and 19 pushbutton keys to
provide local access to the relay menu. There are
also 8 light emitting diodes (LED) for visual indication
of the status of the relay.
The relay provides three communication ports,
RS232C for connection of a local PC, RS485 for a
remote PC and IRIG-B for an external clock.
- CT
- VT
- IRIG-B
Current
Local PC
- LCD
- LED
- Operation key
- RS232C I/F
- DC/DC
converter
- Binary input
- Binary output
(trip)
- Binary output
(signal)
- RS485
- Analog filter
- A/D
converter
- MPU
Transformer
module
External
clock
Signal
processing
module
Binary input
output
modules
Remote
PC
DC supply
Out
p
ut
In
p
ut
Human
machine
interface
Volta
g
e
Figure 7. Hardware block diagram
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GRT100
6
The terminal blocks are located at the rear of the
relay providing connections for all input/output circuits.
The relay is housed in a type-A case, suitable for
either rack or panel mounting as shown in Figures 10
and 11.
METERING AND RECORDING
 Metering and Monitoring
The following power system data is measured continuously
and displayed on the LCD on the relay fascia, at the
local PC, and the remote PC when connected.
 Currents (phase, phase to phase, symmetrical
components)
 Differential currents
 Voltage (phase to phase)
 Frequency
Currents, voltages and differential currents can be
indicated as primary or secondary values.
The user can monitor the following output and status
on the LCD and at local/remote PCs
 Relay element output
 Binary input/output
 Event Record
The most recent 96 time-tagged events are stored
with 1ms resolution. Events recorded are as follows.
 Tripping
 Alarms
 Change of binary input signal
 Change of relay setting
 Relay failure
 Fault Record
A relay trip initiates fault recording. Time-tagged fault
data can be stored for the 8 most recent faults. Fault
record items are as follows.
 Date and time
 Operating phase
 Tripping mode
 Pre-fault and post-fault current data (phase, phase
to phase, symmetrical components)
 Disturbance Record
The relay can record 22 analog and 30 binary signals.
The disturbance recorder is initiated by operation of
the overcurrent element and/or relay tripping. In respect
to analog data, phase currents, neutral current and
phase to phase voltage are recorded.
Pre-fault recording time is fixed at 300 ms, and post-
fault recording time can be set from 100 ms to 3 s.
The maximum number of stored records depends on
the post-fault recording time. In the case of a post-
fault recording time of 500 ms, up to 20 disturbance
records can be stored. The number of the recorded
data is displayed on the LCD.
 Calendar and Time
A calendar and time are provided for time- tagging of
recorded data. Synchronisation with the GPS (Global
Positioning System) is possible using the IRIG-B port.
USER INTERFACE
 Relay Front Panel
The relay front panel provides the following user
interfaces. Setting the relay and viewing stored data
are possible using the Liquid Crystal Display (LCD)
and operation keys.
- 40 character, 4 line LCD with back light
- 8 Light Emitting Diodes (LED) including 4 that are
configurable
- Operation keys
- RS232C port
- Monitoring jacks
Figure 8 shows the relay front panel.
Fig. 8 Relay front panel
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GRT100
7
The following items are displayed on the LCD.
- Setting
- Metering
- Event records
- Fault records
- The number of disturbance records
- Any failure message detected by the automatic monitoring
Password protection can be provided from the setting
menu on the LCD to provide security for relay setting
changes. After the password has been set, the password
must be entered to access the setting menu from a
local or remote PC as well as on the LCD.
Details of metering, fault records, and relay failures can
be monitored by pressing the VIEW key. The VIEW
key can be pressed without removing the relay front
cover.
Arbitrary signals can be assigned to the four user
configurable LEDs.
Two monitoring jacks are operable when the test
mode is selected in the LCD window. An oscilloscope
can be connected to the relay through these jacks.
Selection of output signals to the monitoring jacks can
be set from the LCD menu.
 Local PC
The user can communicate with the GRT100 from a
local PC via the RS232C port on the relay fascia. The
following data can be viewed or analysed on the local
PC with RSM100 software.
- Setting
- Metering
- Event records
- Fault records
- Disturbance records
 Relay Setting and Monitoring (RSM)
GRT100 can be connected to the RSM system via
the RS485 interface at the rear of the relay. The user
can operate the relay from a remote PC in the same
way as from a local PC.
A maximum of 32 x 8 relays can be connected to the
remote PC in multi-drop mode, via the protocol
converter G1PR2. The G1PR2 can be provided with
maximum 8 ports and each port supports maximum
32 relays addressing.
The RSM100 software is also used to communicate
with the relay and to view or analyse disturbance
records on the remote PC.
The data transmission rate between relays and the
protocol converter is 64kbps.
Figure 9 shows the configuration of the RSM system.
Fig. 9 Relay setting and monitoring system
 IEC60870-5-103 Communications
GRT100 supports the IEC60870-5-103
communication protocol. This protocol is used for
communication with a substation control and
monitoring system and is used to transfer measurand
data, status data and general commands between
the relay and the control system.
 Relay Setting
The user can input or change settings using the
operation keys on the relay fascia or via a local or
remote PC with the RSM system.Password protection
is provided to change settings.
Eight active setting groups are provided. This allows
the user to set one group for normal operating
conditions while other groups may be set to cover
alternative operating conditions.
 Configurable Binary Output Contacts
GRT100 provides 13 or 23 user configurable normally
open output contacts used for indication and alarm.
The number of outputs varies according to the relay
model.
 Binary Inputs
GRT100 is provided with 8 binary inputs for trip
and/or indication of external protection devices, etc.
The binary input circuits are provided with a logic
level inversion function.
PROTOCOL
CONVERTER
G1PR2
Protocol converter
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GRT100
8
PC DISPLAY
Fault record
Event record
Metering
Waveform data analysis
Vector diagram
AUTOMATIC MONITORING
 Automatic Monitoring Function
The automatic monitoring function will detect failures,
should they occur, that might cause unwanted operation.
The items monitored include the following:
- Analog input circuits
- Analog-to-digital converter
- Watchdog timer
- DC power supply circuits
- CPU
 Alarms
In the unlikely event that a relay failure should occur,
it will be detected by the automatic monitoring
function and the LED ALARM on the relay fascia will
be illuminated. A binary “RELAY FAILURE” output
operates simultaneously and the date/time of any
such failure will be stored in the event record.
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GRT100
9
TECHNICAL DATA
Ratings
AC current 1A or 5A
AC voltage 100V, 110V, 115V, 120V
Frequency 50Hz or 60Hz
DC power supply
AC ripple on DC supply IEC 60255-11
DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage
interruption to maintain normal operation
Restarttime
Binary input circuit DC voltage
110Vdc/125Vdc (Operative range: 88 to 150Vdc)
220Vdc/250Vdc (Operative range: 176 to 300Vdc)
48Vdc/54Vdc/60Vdc (Operative range: 38.4 to 72Vdc)
maximum 12%
maximum 50ms at 110Vdc
less than 10s
110Vdc/125Vdc (Operative range: 88 to 150Vdc)
220Vdc/250Vdc (Operative range: 176 to 300Vdc)
48Vdc/54Vdc/60Vdc(Operative range: 38.4 to 72Vdc)
Overload rating
AC current input 4 times rated continuous
100 times rated for 1s
AC voltage input 2 times rated continuous
2.5 times rated for 1s
Burden
AC current circuit 0.3VA per phase (at rated 5A)
0.4VA at zero sequence circuit (at rated 5A)
0.1VA per phase (at rated 1A)
0.3VA at zero sequence circuit (at rated 1A)
AC voltage circuit 0.1VA (at rated voltage)
DC power supply less than 14W (quiescent)
less than 25W(operation)
Binary input circuit 0.5W/input at 110Vdc
Current differential protection
Minimum operate current (ik) 0.10 to 1.00pu in 0.01pu steps
Slope 1 (p1) 10 to 100% in 1% steps
Slope 2 (p2) 50 to 200% in 1% steps
kp 1.00 to 10.00pu in 0.01pu steps
Vector group compensation (Winding 1 to 3) (d1 – d3) 0 to 11 (0 to 330deg in 30deg steps)
CT ratio correction (Winding 1 to 3) (kct1 – kct3) 0.05 to 50.00 in 0.01 steps
Inrush setting (2nd harmonic ratio) (k2f) 10 to 50% in 1% steps
Overexcitation setting (5th harmonic ratio) (k5f) 10 to 100% in 1% steps
Operating time typical 30ms
High-set differential overcurrent protection
Overcurrent (kh) 2.00 to 20.00pu in 0.01pu steps
Operating time typical 20ms
Restricted earth fault element
Minimum operating current 0.05 to 0.50pu in 0.01pu steps
Slope 1 (p1) 10 %
Slope 2 (p2) 50 to 100% in 1% steps
kp 0.50 to 2.00pu in 0.01pu steps
CT ratio correction (kct) 1.00 to 50.00 in 0.01 steps
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GRT100
10
Time-overcurrent protection
High-set overcurrent element
Pick up level (OC, EF)
Delay time (TOC, TEF)
Operating time
0.10 to 20.00pu in 0.10pu steps
0.00 to 10.00s in 0.01s steps
typical 30ms (without delay time)
Inverse time overcurrent element
Pick up level (OCI, EFI)
Time multiplier (TOCI, TEFI)
Characteristic
0.10 to 5.00pu in 0.01pu steps
0.05 to 1.00 in 0.01 steps
Three IEC standard 60255-3 (Standard inverse, Very
inverse, Extremely inverse), or a Long-time inverse *Refer
to Figure 3.
Thermal overload protection
Thermal time constant (τ) 0.5 to 500.0min in 0.1min steps
Constant (k) 0.10 to 4.00 in 0.01 steps
Basic current (IB) 0.50 t0 2.50pu in 0.01pu steps
Special load current before overload (Ip) 0.00 to 1.00pu in 0.01 steps
Time for alarming (TA) 0 to 10min in 1min steps
Frequency protection
Overfrequency 50.00 to 55.00Hz in 0.01Hz steps (50Hz relay)
60.00 to 66.00Hz in 0.01Hz steps (60Hz relay)
Underfrequency 45.00 to 50.00Hz in 0.01Hz steps (50Hz relay)
54.00 to 60.00Hz in 0.01Hz steps (60Hz relay)
Delay time 0.00 to 60.00s in 0.01s steps
Start time less than 100ms
Undervoltage blocking 40 to 100V in 1V steps
Overexitation protection
Pickup voltage 100.0 to 120.0V in 0.1V steps
Alarm level (A) 1.03 to 1.30pu in 0.01pu steps
High level (H) 1.10 to 1.40pu in 0.01pu steps
Low level (L) 1.05 to 1.30pu in 0.01pu steps
LT (Definite time) 1 to 600s in 1s steps
HT (Definite time) 1 to 600s in 1s steps
TVFH (Definite time) 1 to 600s in 1s steps
TVFA (Definite time) 1 to 600s in 1s steps
Start time less than 130ms
RT (Definite time) 60 to 3600s in 1s steps
Accuracy
Current differential element: pick-up
reset
±5%
±5%
Time-overcurrent protection: pick-up ±5%
Inverse time overcurrent characteristics:
Standard inverse, Very and long-time inverse
Extremelyinverse
IEC60255-3 class 5
IEC60255-3 class 7.5
Thermal overload protection: pick-up ±10%
Frequency protection: pick-up ±0.03Hz
Overexitation protection ±2% of pick-up voltage (frequency range ±2%)
Disturbance record initiation
Overcurrent element 0.10 to 20.00pu in 0.01pu steps
Earth fault 0.05 to 20.00pu in 0.01pu steps
Pre-fault time 0.3s (fixed)
Post-fault time 0.1 to 3.0s in 0.1s steps
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GRT100
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Communication port
Front communication port (local PC)
Connection
Cable type
Cable length
Connector
Point to point
Multi-core (straight)
15m (max.)
RS232C 9-pin D-subminiature connector female
Rear communication port (remote PC)
RS485 I/F:
Transmission data rate for RSM system
Connection
Connector
Cable and length
Isolation
Fibre optic I/F:
64kbps
Multidrop mode (max. 32 relays)
Screw terminals
Twisted pair cable, max. 1200m
2kVac for 1min.
ST connector, graded-index multi-mode 50/125µm or
62.5/125µm type optical fibres
IRIG-B port
Connection BNC connector
Cable type 50 ohm coaxial cable
Binary inputs
Operating voltage Typical 74Vdc(min. 70Vdc) for 110V/125Vdc rating
Typical 138Vdc(min. 125Vdc) for 220V/250Vdc rating
Typical 31Vdc(min. 28Vdc) for 48V/54V/60Vdc rating
Contact ratings
Trip contacts
Make and carry
Break
5A continuously,
30A, 290Vdc for 0.5s (L/R=10ms)
0.15A, 290Vdc (L/R=40ms)
Auxiliary contacts
Make and carry
Break
4A continuously,
10A, 220Vdc for 0.5s (L/R≧5ms)
0.1A, 220Vdc (L/R=40ms)
Durability
Make and carry
Break
10,000 operations minimum
100,000 operations minimum
Mechanical design
Weight
Case color
Installation
12kg
Munsell No. 10YR8/0.5
Flush mounting or rack mounting
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GRT100
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ENVIRONMENTAL PERFORMANCE
Test Standards Details
Atmospheric Environment
Temperature IEC60068-2-1/2
Operating range: -10°C to +55°C.
Storage / Transit: -25°C to +70°C.
Humidity IEC60068-2-78
56 days at 40°C and 93% relative humidity.
Enclosure Protection IEC60529 IP51 (Rear: IP20)
Mechanical Environment
Vibration IEC60255-21-1 Response - Class 1
Endurance - Class 1
Shock and Bump IEC60255-21-2 Shock Response Class 1
Shock Withstand Class 1
Bump Class 1
Seismic IEC60255-21-3 Class 1
Electrical Environment
Dielectric Withstand IEC60255-5 2kVrms for 1 minute between all terminals and earth.
2kVrms for 1 minute between independent circuits.
1kVrms for 1 minute across normally open contacts.
High Voltage Impulse IEC60255-5 Three positive and three negative impulses of
5kV(peak), 1.2/50µs, 0.5J between all terminals and
between all terminals and earth.
Electromagnetic Environment
High Frequency
Disturbance / Damped
Oscillatory Wave
IEC60255-22-1 Class 3,
IEC61000-4-12 /
EN61000-4-12
1MHz 2.5kV applied to all ports in common mode.
1MHz 1.0kV applied to all ports in differential mode.
Electrostatic Discharge IEC60255-22-2 Class 3,
IEC61000-4-2 /
EN61000-4-2
6kV contact discharge, 8kV air discharge.
Radiated RF
Electromagnetic
Disturbance
IEC60255-22-3 Class 3,
IEC61000-4-3 /
EN61000-4-3
Field strength 10V/m for frequency sweeps of
80MHz to 1GHz and 1.7GHz to 2.2GHz. Additional
spot tests at 80, 160, 450, 900 and 1890MHz.
Fast Transient
Disturbance
IEC60255-22-4,
IEC61000-4-4 /
EN61000-4-4
4kV, 2.5kHz, 5/50ns applied to all inputs.
Surge Immunity IEC60255-22-5,
IEC61000-4-5 /
EN61000-4-5
1.2/50µs surge in common/differential modes:
HV ports: 2kV/1kV (peak)
PSU and I/O ports: 2kV/1kV (peak)
RS485 port: 1kV (peak)
Conducted RF
Electromagnetic
Disturbance
IEC60255-22-6 Class 3,
IEC61000-4-6 /
EN61000-4-6
10Vrms applied over frequency range 150kHz to
100MHz. Additional spot tests at 27 and 68MHz.
Power Frequency
Disturbance
IEC60255-22-7,
IEC61000-4-16 /
EN61000-4-16
300V 50Hz for 10s applied to ports in common
mode.
150V 50Hz for 10s applied to ports in differential
mode.
Not applicable to AC inputs.
Conducted and
Radiated Emissions
IEC60255-25,
EN55022 Class A,
IEC61000-6-4 /
EN61000-6-4
Conducted emissions:
0.15 to 0.50MHz: <79dB (peak) or <66dB (mean)
0.50 to 30MHz: <73dB (peak) or <60dB (mean)
Radiated emissions (at 30m):
30 to 230MHz: <30dB
230 to 1000MHz: <37dB
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GRT100
13
Test Standards Details
European Commission Directives
89/336/EEC Compliance with the European Commission
Electromagnetic Compatibility Directive is
demonstrated according to EN 61000-6-2 and EN
61000-6-4.
73/23/EEC Compliance with the European Commission Low
Voltage Directive is demonstrated according to EN
50178 and EN 60255-5.
PROTOCOL CONVERTER G1PR2 (OPTION)
Ratings
Power supply: 110Vdc/100Vac Operative range: 88 - 150Vdc of 110Vdc rated voltage
80 - 120Vac of 100Vac rated voltage
220Vdc/200Vac Operative range: 170 - 300Vdc of 220Vdc rated voltage
200 - 240Vac of 200Vac rated voltage
48Vdc Operative range: 38.4 - 72Vdc
Burden: less than 20W
Communication port
RS232C interface
Connector type
Cable type
RS232C 9-pin D-subminiature connector female
Multi-core (straight)
RS485 interface
Connector
Cable type
Screw terminals (Phoenix Contact, FRONT type)
Twisted pair cable
Optical interface
Operative Range:
Wavelength:
Connector type:
Fibre type:
less than 1.2km with 62.5/125µm GI fibre (3dB/km)
820nm
ST
62.5/125µm glass fibre
IRIG-B
Connector Screw terminals (Phoenix Contact, FRONT-MSTB type)
Mechanical design
Enclosure Protection
Weight
Installation
IEC60529, IP20
5 kg
Flush mounting
Atmospheric Environment
Temperature
Humidity
IEC60068-2-1/2
IEC60068-2-78
Operating range: -10°C to +55°C.
Storage / Transit: -25°C to +70°C.
56 days at 40°C and 93% relative humidity.
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GRT100
14
ORDERING
1. Transformer Protection
2. Protocol Converter (Option)
Type:
Protocol converter G1PR2
Model:
1 port, Electrical signal (RS485)
4 ports, Electrical signal (RS485)
8 ports, Electrical signal (RS485)
8 ports, Electrical signal (RS485): Max. 8, Optical signal: Max. 1
8 ports, Electrical signal (RS485): Max. 8, Optical signal: Max. 4
8 ports, Electrical signal (RS485): Max. 4, Optical signal: Max. 8
1 port, Electrical signal (RS485) or Optical signal
1 port, Optical signal
4 ports, Optical signal
8 ports, Optical signal
101
104
108
118
148
184
111
110
140
180
AC power supply rating:
AC 100/DC 110V
AC 200/DC 220V
DC 48V
10
50
A0
External time synchronisation:
None.
Provided. (IRIG-B)
00
10
G1PR2 −A −−
Type:
Transformer Protection Relay GRT100
Model:
-Model 100: 2 three-phase current inputs for 2-winding transformer
-13 N/O configurable output contacts
-23 N/O configurable output contacts
101
102
-Model 200 : 3 three-phase current inputs for 3-winding transformer
- 13 N/O configurable output contacts
- 23 N/O configurable output contacts
201
202
CT Rating:
1A, 50Hz, 110V/125V
1A, 60Hz, 110V/125V
5A, 50Hz, 110V/125V
5A, 60Hz, 110V/125V
1A, 50Hz, 220V/250V
1A, 60Hz, 220V/250V
5A, 50Hz, 220V/250V
5A, 60Hz, 220V/250V
1A, 50Hz, 48V/54V/60V
1A, 60Hz, 48V/54V/60V
5A, 50Hz, 48V/54V/60V
5A, 60Hz, 48V/54V/60V
1
2
3
4
5
6
7
8
A
B
C
D
Communications:
RS485
Dual RS485
1
3
Miscellaneous:
None 0
GRT100 −B −0 −0
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GRT100
15
RELAY OUTLINE
Panel Surface mount
Figure 10. Relay case Type-A outline for surface mount
19-inch rack mount
Figure 11. Relay case Type-A outline for rack mount
M3.5 Ring terminal
M3.5 Ring terminal
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GRT100
16
EXTERNAL CONNECTION DIAGRAM
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
TB4-A16
(-)
(+)
DC
SUPPLY
RELAYFAILURE
(HIGHSPEED
RELAY)
(HIGHSPEED
RELAY)
TB4-A4
(+)
MECHANICAL

TRIP
INDICATIONRESET
DDFAIL.
+5Vdc
0V
B18
A18
E
B17
B16
A17
(CASEEARTH)
DC-DC
RELAYFAIL.
B15
A15
IO1
A3
B3
A4
A5
B4
B5
A6
A7
B6
B7
A8
A9
B8
B9
A10
A11
B11
B10
TB3-A2
A1

B1
B2
A12
B12
IRIG-B
B13
A13
FAIL
BO13
TRIP-1
TB4-A1
A2
B1
TRIP-2
B2
A3
TRIP-3
B3
A12
TRIP-4
B12
A13
TRIP-5
B13
4
B4

B5
TB1-1
3
2
A5


A6
B6
BI1
BI2
BI3
BI4
BI5
5
6
30
≥1
CT
CT
CB
CT
CB VT
8
7
IO2
B14
B11
(-) TB3-A14

A15
B15
BI14
BI15
BI16
(-)
EVENT
CT

B7
A7

A8
BI6
BI7
BI8
BI9
BI5

B9
A9

A10
B8 BI10
BI11
BI12
BI13
16
15
28
27
11
10
9
12
14
13
Terminal Block Arrangement (Rear view)
IO2
TB3TB4
IO1
CN1
IRIG-B
E
A18
A1
VCT
TB1

1 2
29 30
B1
B18
(∗1)
(∗1)Theseconnectionsareconnected
byshort-barsbeforeshipment.
RS485I/F
COM-B
COM-A
0V
TB3-A18
B18
A17
B17
A16
B16
(singleRS485port)
COM2-B
COM2-A TB3-A18
A17
A16
B18
B17
B16
COM2-0V
COM1-B
COM1-A
COM1-0V
DualRS485I/Fports
Figure 12. External connection of Model 101
OUTPUT CONTACTS
SIGNAL LIST (DEFAULT)
IO2
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
BO13
TRIP-1
TRIP-2
DIFT
1OC, 1OCI
2OC, 2OCI
1REF, 1EF, 1EFI
2REF, 2EF, 2EFI
FRQ
V/F TRIP
V/F ALARM
THR TRIP
THR ALARM
MEC. RIP-1/ -2/ -3/ -4
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GRT100
17
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
TB4-A16
(-)
(+)
DC
SUPPLY
RELAYFAILURE
(HIGHSPEED
RELAY)
(HIGHSPEED
RELAY)
TB4-A4
(+)
MECHANICAL

TRIP
INDICATIONRESET
DDFAIL.
+5Vdc
0V
B18
A18
E
B17
B16
A17
(CASEEARTH)
DC-DC
RELAYFAIL.
B15
A15
IO1
A3
B3
A4
A5
B4
B5
A6
A7
B6
B7
A8
A9
B8
B9
A10
A11
B11
B10
TB3-A2
A1

B1
B2
A12
B12
IRIG-B
B13
A13
FAIL
BO13
TRIP-1
TB4-A1
A2
B1
TRIP-2
B2
A3
TRIP-3
B3
A12
TRIP-4
B12
A13
TRIP-5
B13
4
B4

B5
TB1-1
3
2
A5


A6
B6
BI1
BI2
BI3
BI4
BI5
5
6
30
≥1
CT
CT
CB
CT
CB VT
8
7
IO2
B14
B11
(-) TB3-A14

A15
B15
BI14
BI15
BI16
(-)
EVENT
CT

B7
A7

A8
BI6
BI7
BI8
BI9
BI5

B9
A9

A10
B8 BI10
BI11
BI12
BI13
16
15
28
27
11
10
9
12
14
13
Terminal Block Arrangement (Rear view)
IO2
IO3
TB2TB3TB4
IO1
CN1
IRIG-B
E
A18
A1
B10
B1
VCT
TB1

1 2
29 30
B1
B18
A1
A
10
(∗1)
(∗1)Theseconnectionsareconnected
byshort-barsbeforeshipment.
IO3
A2
B2
A3
A4
B3
B4
A5
A6
B5
B6
A7
A8
B7
B8
TB2-A1
B1
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
A9
B9
BO9
A10
B10
BO10BO10
COM2-B
COM2-A TB3-A18
A17
A16
B18
B17
B16
COM2-0V
COM1-B
COM1-A
COM1-0V
DualRS485I/Fports
RS485I/F
COM-B
COM-A
0V
TB3-A18
B18
A17
B17
A16
B16
(singleRS485port)
Figure 13. External connection of Model 102
OUTPUT CONTACTS
SIGNAL LIST (DEFAULT)
IO2
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
BO13
TRIP-1
TRIP-2
DIFT
1OC, 1OCI
2OC, 2OCI
1REF
2REF,
1EF, 1EFI
2EF, 2EFI
FRQ
V/F (T) TRIP
V/F (H) TRIP
V/F ALARM
IO3
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
THR TRIP
THR ALARM
TRIP-1
TRIP-2
TRIP-1
TRIP-2
MEC. TRIP1
MEC. TRIP2
MEC. TRIP3
MEC. TRIP4
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GRT100
18
Terminal Block Arrangement (Rear view)
IO2
TB3TB4
IO1
CN1
IRIG-B
E
A18
A1
VCT
TB1

1 2
29 30
B18
B1
TB4-A16
(-)
(+)
DC
SUPPLY
RELAYFAILURE
IRIG-B
(HIGHSPEED
RELAY)
(HIGHSPEED
RELAY)
TRIP-1
TRIP-2
TRIP-3
TRIP-4
TRIP-5
TB4-A4


(+)
MECHANICAL
TRIP
INDICATIONRESET
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
BO13
FAIL
3
DDFAIL.
+5Vdc
0V
B18
A18
E
B17
B16
A17
(CASEEARTH)
DC-DC
RELAYFAIL. 
≧1
B15
A15
A3
B3
A4
A5
B4
B5
A6
A7
B6
B7
A8
A9
B8
B9
A10
A11
B11
B10
TB3-A2
A1

B1
B2
A12
B12
B13
A13
TB4-A1
A2
B1
B2
A3
B3
A12
B12
A13
B13
B4 BI1
BI2
B5
A5 BI3
 BI4
A6
B6 BI5
IO1
2
TB1-1
4
6
5
11
18
17
20
19
22
21
24
23
30
27
28
16
15
10
9
12
14
13
8
7
(-)
(-)
B14
B11
TB3-A14 BI14
 BI15
A15
B15 BI16
IO2
EVENT

B7
A7

A8
BI6
BI7
BI8
BI9
BI5

B9
A9

A10
B8 BI10
BI11
BI12
BI13
CB
CT
CB
CT CT
CT
CT
CB
CT
VT
(∗1)
(∗1)Theseconnectionsareconnected
byshort-barsbeforeshipment.
RS485I/F
COM-B
COM-A
0V
TB3-A18
B18
A17
B17
A16
B16
(singleRS485port)
COM2-B
COM2-A TB3-A18
A17
A16
B18
B17
B16
COM2-0V
COM1-B
COM1-A
COM1-0V
DualRS485I/Fports
Figure 14. External connection of Model 201
OUTPUT CONTACTS
SIGNAL LIST (DEFAULT)
IO2
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
BO13
TRIP-1
TRIP-2
TRIP-3
DIFT
1OC, 1OCI, 1REF, 1EF,
1EFI
2OC, 2OCI, 2REF, 2EF,
2EFI
3OC, 3OCI, 3REF, 3EF,
3EFI
FRQ
V/F TRIP
V/F ALARM
THR TRIP
THR ALARM
MEC. TRIP-1/ -2/ -3/ -4
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GRT100
19
Terminal Block Arrangement (Rear view)
IO2
IO3
TB2TB3
TB4
IO1
CN1
IRIG-B
E
A18
A1
B10
B1
VCT

TB1
1 2
29 30
TB4-A16
(-)
(+)
DC
SUPPLY
RELAYFAILURE
IRIG-B
(HIGHSPEED
RELAY)
(HIGHSPEED
RELAY)
TRIP-1
TRIP-2
TRIP-3
TRIP-4
TRIP-5
TB4-A4


(+)
MECHANICAL
TRIP
INDICATIONRESET
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
BO13
FAIL
3
DDFAIL.
+5Vdc
0V
B18
A18
E
B17
B16
A17
(CASEEARTH)
DC-DC
RELAYFAIL.

≧1
B15
A15
A3
B3
A4
A5
B4
B5
A6
A7
B6
B7
A8
A9
B8
B9
A10
A11
B11
B10
TB3-A2
A1

B1
B2
A12
B12
B13
A13
TB4-A1
A2
B1
B2
A3
B3
A12
B12
A13
B13
B4 BI1
BI2
B5
A5 BI3
 BI4
A6
B6 BI5
IO1
2
TB1-1
4
6
5
11
18
17
20
19
22
21
24
23
30
27
28
16
15
10
9
12
14
13
8
7
(-)
(-)
B14
B11
TB3-A14 BI14
 BI15
A15
B15 BI16
IO2
EVENT

B7
A7

A8
BI6
BI7
BI8
BI9
BI5

B9
A9

A10
B8 BI10
BI11
BI12
BI13
CB
CT
CB
CT CT
CT
CT
CB
CT
VT
(∗1)
(∗1)Theseconnectionsareconnected
byshort-barsbeforeshipment.
RS485I/F
COM-B
COM-A
0V
TB3-A18
B18
A17
B17
A16
B16
(singleRS485port)
COM2-B
COM2-A TB3-A18
A17
A16
B18
B17
B16
COM2-0V
COM1-B
COM1-A
COM1-0V
DualRS485I/Fports
IO3
A2
B2
A3
A4
B3
B4
A5
A6
B5
B6
A7
A8
B7
B8
TB2-A1
B1
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
A9
B9
BO9
A10
B10
BO10BO10
Figure 15. External connection of Model 202
OUTPUT CONTACTS
SIGNAL LIST (DEFAULT)
IO2
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
BO11
BO12
BO13
TRIP-1
TRIP-2
TRIP-3
DIFT
1OC, 1OCI
2OC, 2OCI
3OC, 3OCI
1REF
2REF
3REF
1EF, 1EFI
2EF, 2EFI
3EF, 3EFI
IO3
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
BO9
BO10
FRQ
V/F (T) TRIP
V/F (H) TRIP
V/F ALARM
THR TRIP
THR ALARM
MEC. TRIP1
MEC. TRIP2
MEC. TRIP3
MEC. TRIP4
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PHONE;[phone] FAX;[phone]
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Thedatagiveninthiscatalogaresubjecttochangewithoutnotice.
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