ADR239B
Introduction:
•
Switch on to fault (SOTF) function
ASHIDA has designed economical & reliable
•
Power swing function (68)
Multifunction ADR239B Protection & Control
•
Load encroachment function
System.
compact
•
POTT / PUTT scheme.
construction of ADITYA series ADR239B
•
Directional / Non Directional Phase &
relay
The
provides
simple
and
integrated
Protection,
Ground
Control and Monitoring functions for Over
head
Transmission
Lines,
Underground
•
•
Four Independent Settings Groups
•
Directional / Non Directional Impedance
Function (21/21N)
Impedance
direction
Six
Independent
Measuring
(AB/BC/CA/AN/BN/CN)
•
Zone1 extension.
•
Independent
Three
Stages
Directional
Stages
for
of
Ground
Directional/Non
Over
Current
Protection.
•
Inverse time Over Current Protection
(IEC
Zones
(Polygon) settable in forward / reverse
•
Three
Current Protection.
Key Protection & Control Functions:
Independent
Function
Directional/Non Directional Phase Over
Functional Overview:
Five
Current
(50/51/51N/50N/67/67N)
cables, and Distributed Feeders.
•
Over
/IEEE
curves
according
to
IEC60255).
•
Two Stages of Inverse & Definite time
Negative Phase Sequence Over Current
Loop
Protection (46).
•
Broken Conductor Protection (46BC)
Doc ID: ADR239B/PC/01
Rev No.: 01
Page No.: 1 of 16
ADR239B
•
Negative Phase Sequence Over Voltage
Protection (47)
•
Password Protection.
Broken conductor Protection (I2/I1 –
Software Support:
46BC)
•
Setting Editor.
Two Stages of Phase Under and Over
•
Programmable scheme logic Editor.
Voltage Protections (27 /59)
•
Settings upload / download.
•
Offline Settings Editor.
Protection.
•
Online Measurement / Metering.
•
Residual Over Voltage Protection (59N).
•
Disturbance analysis.
•
Multi
•
•
•
Positive
Sequence
shots
Over
(4-shots)
Voltage
Auto-reclosing
function.
•
Breaker Failure detection (50BF)
•
VT and CT supervision function.
•
Trip circuit supervision function.
•
Programmable Inputs & Outputs.
•
CB Close / Trip from HMI
•
Programmable
&
Target
LEDs
ADR239B numerical multifunction machine
terminal protection relay designed for Line,
Feeder & Machine protection applications.
Relay designed with fast and selective
tripping
for
indication with dual colours (16 nos.)
Self Supervision of relay
•
Metering function.
•
Disturbance Recording (10 nos.)
•
Event Recording (1028 nos.)
•
Fault Recording on HMI display (10nos.)
•
Fault locator.
•
Non-Volatile memory.
•
Fully communicable with IEC standard
protocol
ensures
the
stability
and
availability of electrical power system.
ADR239B relay apply for protection, control
•
open
Applications:
& monitoring of line radial and ring main
feeder to achieve sensitivity and selectivity
on phase and ground faults.
IEC60870-5-103,
MODBUS & IEC 61850.
•
Separate
communication
port
for
communication
for
SCADA Communication.
•
PC
front
port
convenient relay settings.
•
User friendly local operation with key
Line Protection application
pad.
•
Large Liquid crystal display (20X4) with
backlight
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Rev No.: 01
Page No.: 2 of 16
ADR239B
The functional overview of
current Protection
ADR239B:
68
Out of Step Protection
50BF
Breaker Failure
VTS
VT Supervision Detection
CTS
CT Supervision Detection
79
Auto reclosing
86
Lockout (Trip command)
Impedance Function (21/21N):
The core functionality of ADR239B relay is
Protection functions Overview
ANSI
Code
21
21N
Description
a
full-scheme
distance
protection.
The
relay provides five independent polygon
impedance zone characteristics to users.
Relay provides independent resistive reach
Phase Impedance Protection
(R) and reactive reach (X) settings. All
Ground Voltage Protection
zones are used separately Phase to Phase
27
Under Voltage Protection
and Phase to Ground faults. High resistive
46
Negative Phase Sequence
Protection
ground faults can be covered with polygon
46BC
Broken Conductor Detection
47
Negative Phase Sequence Over
Voltage Protection
50
Instantaneous/Definite Time
Phase Over current Protection
51
Inverse Time Phase Over
current Protection
50N
51N
59
Instantaneous/Definite Time
Ground Over current Protection
Inverse Time Ground Over
current Protection
characteristic by adjusting resistive reach.
The resistance section can be set based on
high resistive faults and reactive reach can
be set based on line parameters. Operating
time of each zone shall be independently
settable for phase faults and ground faults.
Forward
and
reverse
resistive/reactive
reach settings are independently set. All
the distance (Impedance) zones can be set
either for forward or reverse direction or
non directional.
Over Voltage Protection
59N
Residual Over Voltage
Protection
FLC
Fault locator
67P
Directional Phase Over current
Protection
67N
Directional Ground Over
Doc ID: ADR239B/PC/01
Rev No.: 01
Page No.: 3 of 16
ADR239B
impedance). ADR239B detect power swing
when the impedance passes through ΔR
and ΔX zone in more than 35ms. Relay
provides
polygon
“Inner”
and
“Outer”
characteristics to meet the criteria of power
swing detection.
ADR239B
relay
provides
power
swing
blocking delay settable. Any of selected
zone operation (Z1/Z1ext./Z2/Z3/Z4 /Z5)
Zone characteristic
can be blocked for preset time delay.
Switch on to fault (SOTF) over
Distance
current function (50S):
zones
unblock
automatically,
when asymmetrical faults detected during
ADR239B relay provides switch on to fault
power swing block condition. Power swing
(SOTF) protection against energizing faulty
trip delay (out of step trip delay) provides
line by switching on circuit breaker. It
feature to initiate tripping during unstable
provides three pole tripping. Switch on to
power swing condition.
fault initiation can be detected through
digital input of “Manual close command
from circuit breaker controls” or “automatic
reclosing of circuit breaker”.
Power Swing Detection (68/68T):
Dynamic/Transient
conditions
like
power
power
system
system
faults,
network switching, load fluctuations, autoreclosing,
sudden
line
outages,
Major
Power swing characteristic
generation loss can cause power swing in
transmission network.
Large amount of
current flows with small voltages, resulting
initiate
zones.
unwanted
To
avoid
tripping
unwanted
of
distance
tripping
of
distance zones (during recoverable power
swing),
power
ADR239B
swing
provides
detection
feature
of
function. Power
swing can be detected under symmetrical
load
condition
(positive
sequence
Power swing stable
Doc ID: ADR239B/PC/01
Rev No.: 01
Page No.: 4 of 16
ADR239B
following tripping characteristics (IEC) are
available;
•
IEC Normal Inverse Curve (C1) for 3s
•
IEC Normal Inverse Curve (C2) for 1.3s
•
IEC Very Inverse Curve (C3)
•
IEC Extremely Inverse Curve (C4)
•
Long time Inverse Curve (C5)
•
Definite time Over current (C6)
K * a
t=
current Protection
(50/50N/51/51N/67P/67N):
The relay provides Directional and Non
Directional phase and ground over current
with
multiple
settings
(four
stages for phase over current and three
stages for ground over current) for various
power system applications and wide range
of
protection
equipped
with
settings.
The
digital
filter
function
1
Iref
Directional / Non Directional over
protection
b
I
Power swing unstable
is
algorithms,
providing the rejection of higher harmonics
Curve
Type
Description
a
b
C1
Standard
Inverse_1
0.14
0.02
C2
Standard
Inverse_2
0.06
0.02
C3
Very Inverse
13.5
1
C4
Extremely
inverse
80
2
C5
Long Time
Inverse
120
1
C6
Define Time
-
-
& DC offset. Selectable IEC/IEEE inverse
ADR239B relay enable to provide users to
time curves with directional/non directional
set IEEE / ANSI.
over current protection will be providing
Directional element of relay will be deciding
greater selectivity, flexibility and sensitivity
faults
to users for better relay co-ordinations.
voltage & current flows on over head
ADR239B relay provides inverse time over
transmission
current characteristic for phase and ground
during faults. RCA/MTA setting range of
over current elements. Each stages of
relay will provide flexibility to users to set
phase and ground over current elements
directional angles based on power system
are independently settable with inverse
parameters. Operating time of directional
time or definite time characteristic. The
element shall be settable instantaneous or
in
forward/reverse
line
/
direction
underground
by
cable
with definite & inverse time delay.
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Rev No.: 01
Page No.: 5 of 16
ADR239B
head transmission line, underground cable,
and feeder. The ground current (3I0>)
calculated from three line currents.
Directional discrimination for phase to
phase fault
Derived Zero sequence over current from
three phases
Sequence over current Protection
(50P/46):
ADR239B provides sequence over current
protection
against
unbalance
faults/condition or high impedance faults
over transmission line/under ground cable
or over load condition. Sequence over
Directional determination for Ground faults
current function provided in two modes;
Positive sequence and Negative sequence
over current function. User can select the
mode
based
on
their
application
and
requirement.
Directional discrimination for phase to
ground fault
ADR239B relay provides three stages of
definite time/inverse time internally derived
zero
sequence
over
current
(3I0>)
Two independent negative phase sequence
protection to detects asymmetrical faults in
over current elements can be programmed
electrical network. It can apply to over
as IDMT or definite time characteristic.
Doc ID: ADR239B/PC/01
Rev No.: 01
Page No.: 6 of 16
ADR239B
ADR239B
relay
provides
selectable
IEC/IEEE inverse curves for each stage.
Over & Under voltage Protections
(59/27):
ADR239B relay provides independent phase
over and under voltage protections with
definite
time
delay
range.
Relay
also
provides the positive sequence over voltage
protection with definite time characteristic
option.
Protection
functions
can
be
programmed for alarm signal or trip signal
through programmable logic.
Broken conductor Protection
(46BC):
ADR239B equipped with broken conductor
detection
protection.
Broken
conductor
condition can be detected by ratio of
Negative
sequence
sequence
current
current
(I2/I1).
to
Positive
Protection
provides higher sensitivity on High resistive
fault.
Under & Over voltage detection through 3phase VT connection
Residual over voltage Protection
(59N):
ADR239B relay provides zero sequence /
residual over and voltage protection with
definite time delay range. Protection can be
achieved
by
zero
sequence
voltage
internally calculated from three phases.
I0/I1 detection (50BC):
ADR239B
function
provide
for
independent
sensitive
ground
I0/I1
fault
detection. Relay measure the ratio of zero
to positive sequence current precisely.
Zero sequence over voltage detection
through 3-phase VT
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Rev No.: 01
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ADR239B
Negative phase sequence over
Trip circuit supervision (74T):
voltage Protections (47):
Any two binary inputs for circuit breaker
ADR239B relay provides negative sequence
poles can be used for monitoring the circuit
over voltage protections with definite time
breaker
delay range. It provides protection against
cables. Relay initiate alarm whenever the
high resistive faults and unbalance loading
circuit breaker control/DC circuitry gets
condition.
interrupted.
trip
coils
including
connecting
Relay monitor Trip coil healthiness through
CB NO during close condition and through
CB
NC
during
Trip
condition.
If
any
discontinuity observed it generate Alarm
signal.
B+
TCCOM
1
6
2
Negative Phase Sequence Over voltage
detection through 3-phase VT connection
locator
feature,
T1
B1
T2
TC
Fault Locator (FLC):
Fault
CB NO
To Relay CPU
To Relay CPU
6
2
CB NC
calculates
fault
Trip Circuit Logic
impedance and distance to fault based on
positive sequence reactance parameter of
Reclosing / Auto reclosing (79):
protected line.
The ADR239B is provides 3-pole/1-pole
multi shots (4 shots) Auto reclose function.
Breaker failure detection (50BF):
Numbers of shots are selectable. There are
If the fault current is not interrupted after a
4 timer for auto recloser 1) Dead Time for
time delay expired, circuit breaker failures
shot 1 (DT1) 2) Dead Time for shot 2 (DT2)
detected, and execute trip command to
3) Dead Time for shot 3 (DT3) 4) Dead
upstream circuit breaker. ADR239B relay
Time for shot 4 (DT4) and 5) Reclaim Time
incorporates
circuit
(RT).
protection
detect
breaker
failure
After
clearing
of
fault
ADR239B
tripping
trigger dead Time 1 i.e. DT1. After the time
command execution due to mechanical or
delay, relay provides reclose command and
electrical problems in circuit breaker.
start reclaim timer RT. If second fault occur
to
failure
of
during RT relay trigger Dead Time 2 i.e.
DT2. If third fault occur during RT relay
trigger Dead Time 3 i.e. DT3, If Fourth fault
occur during RT relay trigger Dead Time 4
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Rev No.: 01
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ADR239B
i.e. DT4 and after time delay it again
provide reclose command and retrigger RT.
If fifth fault occur during RT Relay generate
Lock-Out alarm and block further reclose.
The Lock-Out condition can be reset locally
as
well
remotely
by
SCADA
through
communication digital status input.
VT supervision function:
ADR239B relay provides VT supervision
function
to
detecting
a
loss
of
phase
voltage input such as that caused by failure
of fuses (figure) or molded case/miniature
circuit breaker (MCB). Relay declares the
VT supervision when the below logic shall
be stratified.
CT supervision function:
ADR239B relay provides CT supervision
function to detecting a loss of phase current
due to the failure of ct secondary wiring.
If the power system currents are healthy,
negligible negative & zero sequence voltage
could be derived. If, however, one or more
of the AC current inputs are missing, a
negative & zero sequence currents would
be derived, even if the actual power system
phase currents are healthy. CTS works by
using these criteria; that is by detecting a
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Rev No.: 01
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ADR239B
ratio
of
derived
negative
to
positive
The
ADR239B
also
provides
pushbuttons
for
the
sequence currents & ratio of derived zero
programmable
circuit
sequence to positive sequence currents in
breaker close and open from HMI of relay.
the absence of a corresponding derived
Pushbuttons can be programmed through
negative & zero sequence voltage from VT.
HMI or through RTV2 software.
Event recording:
ADR239B
relay is providing
feature to
record and store 512 nos. Of events in nonvolatile
memory
protection
and
through
control
internally
functions
by
and
externally by triggering of digital inputs,
and can be extracted using communication
port or viewed on front of LCD display. The
Programmable Inputs, Outputs &
Logic:
The modular version of ADR239B relay
event
shall
be trigger on
time stamp
through time synchronization or internal
clock setting.
provides total 62 nos. of programmable
digital outputs and optically isolated digital
inputs.
Disturbance recording:
ADR239B
analogue
Pushbuttons:
The modular version provides 16 nos. The
LEDs can be programmed either through
or
software).
through
PC
software
is
provides
built
in
disturbance recording facility for recoding of
Programmable LEDs and
HMI
relay
(RTV2
and
digital
channels.
Relay
records 10 nos. of disturbances (FIFO) and
store
in
to
non-volatile
memory.
Disturbance records can be saved in IEEE
COMTRADE
format
and
same
can
be
analyzed (Voltage / Current / RMS values /
Symmetrical
components
/
Vectors
/
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Rev No.: 01
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ADR239B
Spectrum analysis /Digital channels etc.) in
Metering:
disturbance analysis software (COMTRADE
Online metering feature of ADR239B relay
VIEWER).
is providing metering of parameters (i.e
voltage/current magnitude, power, power
factor measurement etc.) on HMI display or
in RTV2 software.
Independent Protection settings
groups:
ADR239B relay provides four independent
settings groups to allow operate relay on
different
power
system
operating
conditions.
IEC 60870-5-103 / IEC61850
Protocol:
ADR239B
relay
provides
internationally
standardized IEC60870-5-103 protocol for
communication
Fault recording:
ADR239B relay is providing fault record
facility. The fault records can be display
via
RS485
port
and
IEC61850 protocol via Ethernet port of
protection
relays.
worldwide
and
These
protocols
supported
by
are
relay
manufacturers.
either on HMI display or in RTV2 software.
The relay can records 10 nos. of fault
records in non-volatile memory.
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ADR239B
ASHIDA ELECTRONICS PVT LTD. All rights reserved. All brand or
product names appearing in this document are the trademark or
registered trademark of their respective holders. No ASHIDA
trademarks may be used without written permission.
The information in this document is provided for informational use
only and is subject to change without legal notice. ASHIDA
ELECTRONICS PVT LTD. has approved only the English language
document.