ALIND AN+ Series User manual

NUMERICAL PHASE UNBALANCE PROTECTION RELAY
AR49 [AN+ SERIES]
USER MANUAL
ALUMINIUM INDUSTRIES LIMITED
RELAYS DIVISION, THIRUVANANTHAPURAM

RELAYS DIVISION
AR49
Numerical Phase Unbalance Protection Relay
CONTENTS
S AFETY R EQUIREMENTS AR49 I
I NTRODUCTION AR49 II
H ANDLING I NSTALLATIONS & C ASE D IMENSIONS AR49 III
U SER G UIDE AR49 IV
T ECHNICAL D ATA & C HARACTERISTIC C URVES AR49 V
T EST R EPORT AR49 VI
T ROUBLE S HOOTING AR49 VII
C OMMUNICATION AR49 VIII

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RELAYS DIVISION
SAFETY
REQUIREMENTS

SAFETY REQUIREMENTS Page 2 of 7 AR49-I
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RELAYS DIVISION
CONTENTS
I NTRODUCTION
H EALTH AND SAFETY
S YMBOLS AND EXTERNAL LABELS ON THE RELAY
I NSTALLING , COMMISSIONING AND SERVICING
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D ECOMMISSIONING AND DISPOSAL
T ECHNICAL S PECIFICATION F OR S AFETY

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RELAYS DIVISION
INTRODUCTION
Before u ing thi product, be ure to read thi chapter carefully.
Thi chapter de cribe afety precaution when u ing the relay. Before in talling and u ing the equipment,
read and under tand thi chapter thoroughly.
It’ not a ecret – electricity can be dangerou and when thing go wrong live can be at take!
Electrical engineer are Indu trial afety doctor , o it’ our duty to keep employee health and maintain a
quality of life that we all de erve by providing afe work practice to avoid electrical accident .
How mu h ele tri ity is dangerous?????
CURRENT EFFECT
0.5 – 3mA Tingling en ation
3 – 10mA Mu cle contraction (painful)
10 – 40mA “can’t let go” phenomena
40 – 75mA Re piratory paraly i (po ibly fatal)
75 – 200mA Ventricular fibrillation (likely fatal)
200 – 500mA Heart clamp tight
>1.5A Ti ue and organ began to burn
Fact: A 15 amp circuit breaker was designed to protect equipment – not people!
The relay i developed with zero percentage of ri k factor by it own de ign. The current carrying path
and circuit are i olated from the metal ca e and tructure. Suitable clearance depending on the type of
in ulation required for different cla e are provided.
The relay confirm to Product afety requirement tandard IEC 60255-27:2013

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HEALTH AND SAFETY
It deal with the handling of relay in proper way. An individual to be con idered a ‘qualified’ with regard
to certain equipment in the workplace, but ‘unqualified’ a to other equipment. “An employee, who i
undergoing on the job training and who, in the cour e of uch training, ha demon trated the ability to
perform dutie afely at hi or her level of training and who i under the direct upervi ion of a qualified
per on al o con idered to be a qualified per on for the performance of tho e dutie .”
The following requirement mu t be met, in the order given, before circuit or equipment are re-
energized, even temporarily.
 People handling the equipment hould be aware about the relay afety handlet.
 En ure that the product i in the off condition before working on the conducting or terminal ide.
 A qualified per on mu t conduct te t and vi ual in pection , a nece ary, to verify that tool electrical
jumper , hort , ground and other uch device have been removed, o that the circuit and
equipment can be afely re-energized.
 Employee expo ed to the hazard a ociated with re-energizing the circuit or equipment mu t be
warned to tay clear of the circuit and equipment.
 Each lock and tag mu t be removed by the employee who applied it or omeone el e under that
employee’ direct upervi ion.
 A vi ual determination that all employee are clear of the circuit and equipment mu t be made.
For any querie related to relay , feel free to contact ALIND.

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SYMBOLS AND LABELS USED IN THE RELAY
1. FRONT SIDE
Caution: refer to equipment
documentation
Caution: ri k of electric hock Caution: Over voltage
Cat.III
2. REAR SIDE
Protective Conductor (*Earth) terminal
Functional/Protective Conductor (*Earth) terminal.
CMOS Battery provided for the RTC (Real Time Clock) purpo e. Confirm
polarity of the battery while replacing.
IEC 61850 ticker

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WARNING
Current transformer ir uit
Never allow the current tran former (CT) econdary circuit connected to thi equipment to
be opened while the primary y tem i live. Opening the CT circuit will produce a
dangerou high voltage.
Exposed terminals
Do not touch the terminal of thi equipment while the power i on, a the high voltage
generated i dangerou .
Residual voltage
Hazardou voltage can be pre ent in the DC circuit ju t after witching off the DC power
upply. It take about 30 econd for the voltage to di charge.
CAUTION
Earth
Earth the earthing terminal of the equipment ecurely.
Operation onditions
U e the equipment within the range of ambient temperature, humidity and du t a
detailed in the pecification and in an environment free of abnormal vibration.
Ratings
Before applying AC voltage and current or DC power upply to the equipment, check that
they conform to the equipment rating .
Printed ir uit board
Do not attach and remove the printed circuit board while the DC power to the equipment
i on, a thi may cau e the equipment to malfunction.
External ir uit
When connecting the output contact of the equipment to an external circuit, carefully
check the upply voltage u ed and prevent the connected circuit from overheating.
Conne tion able
Carefully handle the connection cable without applying exce ive force.

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Modifi ation
Do not modify thi equipment, a thi may cau e the equipment to malfunction, and any
uch ca e , warranty may be affected.
DECOMMISIONING AND DISPOSAL
De- ommissioning
The upply input (auxiliary) for the equipment may include capacitor acro the upply
or to earth. To avoid electric hock or energy hazard , after completely i olating the
upplie to the equipment, the capacitor hould be afely di charged via the external
terminal prior to de-commi ioning.
ANGER
Disposal
When di po ing of thi equipment, do o in a afe manner according to local regulation .
It i recommended that incineration and di po al to water cour e i avoided. En ure the
relay i in de energized condition and take precaution to avoid hort circuit .
TECHNICAL SPECIFICATIONS FOR SAFETY
1. Prote tive lass
IEC 60255-27:2013 Cla I (Thi equipment require a protective conductor (earth)
connection to en ure u er afety.
2. Environment
IEC 60255-27:2013 Pollution degree 2 (Normally only non-conductive pollution occur except
occa ionally a temporary conductivity cau ed by conden ation i to be
expected.)
3. Overvoltage Category
IEC 60255-27:2013 Category III (The auxiliary energizing circuit of the equipment are
connected to a common battery, common mode tran ient voltage of a
relatively high value may appear on the upply lead , and differential
mode voltage may ari e from witching in other circuit connected to the
ame battery ource.
4. Conta t data Te t voltage acro open contact: 1 kV DC for 1 min

Page 1 of 5 AR49-II
RELAYS DIVISION
INTRODUCTION

INTRODUCTION Page 2 of 5 AR49-
II
RELAYS DIVISION
CONTENTS
A N S ERIES D ESCRIPTION
B RIEF D ESCRIPTION O F AR49
M AIN F UNCTIONS
G ENERAL F UNCTIONS

INTRODUCTION Page 3 of 5 AR49-
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RELAYS DIVISION
AN+ SERIES (ALIND NUMERICAL SERIES)
 Advanced Digita Fourier Transform based Numerica a gorithm design using 32-bit Digita Signa
Contro er.
 Compact Construction covering severa protection modu es viz Over Current Protection, Earth Fau t/
Restricted Earth Fau t protection a ong with Trip Circuit supervision in sing e modu e thus saving pane
space.
 Disp ay of protection acted, fau t current, fau t c earing time, fau t date & time of atest 200 fau ts at
Re ay LCD.
 Man-Machine Communication through 20x4 character LCD disp ay.
 Se f-supervision of both hardware and software units.
 Interface abi ity with SCADA through IEC 60870-5-103 & IEC 61850 communication protoco
 Faci ity for storing fau t waveforms (Disturbance recorder) and events with date and time stamping.
At a time, a tota of 5000 events and 200 atest fau t waveform (Disturbance recorder) wi be stored
in the re ay.
 Graphica User Interface for Harmonic ana ysis, DC ana ysis and di/dt ana ysis can be done on the
up oaded fau t waveforms with faci ity for report generation.
 Faci ity to access/modify the re ay settings both on ine as we as through menu in oca PC
 Re ay Indication (LED) reset from RCC
 IP 54 grade enc osure protection.
 SNTP (Simp e Network Time Protoco ) & optiona GPS based IRIG -B time code standard
Synchronization Faci ity.
 On ine HV current & LV current disp ay on re ay LCD.
 Settab e CT ratios.
 Re ay operation Counter

INTRODUCTION Page 4 of 5 AR49-
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RELAYS DIVISION
Designe as per RDSO specification no. TI/SPC/PSI/PROTCT/7101 an 6072.
ALIND
RELAYS
AR49X
1
X
2
V & I Rating co e
Communication Co e
Voltage Unbalance Protection
Current Unbalance Protection
PROTECTION FEATURES
AR49 conforms to RDSO specification no. TI/SPC/PSI/PROTCT/7101. AR49 (AN+ Series) re ay is a
comprehensive Integrated Phase Unba ance protection re ay to avoid Circuit breaker Po e discrepancy issue
in 2X25KV AC Traction System.
Communication naming codes- X
1
A IEC 60870-5-103
B IEC 60870-5-103 + IEC61850
(RJ45)
C IEC 60870-5-103 + IEC61850
(LC)
D IEC 60870-5-103 + IEC61850
(Redundant RJ45)
E IEC 60870-5-103 + IEC61850
(Redundant LC)
F IEC 60870-5-103 + IEC61850
(Redundant RJ45) + IRIG B
G IEC 60870-5-103 + IEC61850
(Redundant LC) + IRIG B
H IEC 60870-5-103 + IRIG B
I IEC 60870-5-103 + IEC61850
(RJ45) + IRIG B
J IEC 60870-5-103 + IEC61850
(LC) + IRIG B
V & I Rating codes-X
2
1 1A CT
2 110V AC& 1A
3 110V AC& 5A
30V AC& 110V DC
5 5A CT
6 100AC& 1A
7 100AC& 5A
8 100AC
9 110V AC
Protection naming codes
0.
None
1. Panto Flash Over Protection
2. Distance Protection
3. Under/Over Voltage
Protection
. Current Unbalance Protection
5. Over Current Protection
6. EF/REF Protection
7. Delta I Protection
8. Current Differential Protection
9. Voltage Unbalance Protection

INTRODUCTION Page 5 of 5 AR49-
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RELAYS DIVISION
MAIN FUNCTIONS
Sl No. PARTICULARS AR49
1. MAIN PROTECTIONS
1.1 Inverse time OC protection 
1.2 Vo tage Unba ance protection 
1.3 Re ay Error 
1.4 LBB 
2. STATUS INPUTS
2.1 TIME SYNC 
2.2 RCC RESET 
2.3 BRKR STATUS NO 
2.4 BRKR STATUS NC 
GENERAL FUNCTIONS
Sl No. PARTICULARS AR49
1. Password protection 
2. Event Memory 5000
3. Disturbance recorder waveforms 200
4. 50 cyc es (45 pre and 5 post fau t) of fau t waveform 
5. COMMUNICATION
5.1 GUI Interface RJ45
5.2 Iso ated RS 485 Interface 
5.3 Communication Protoco Interface- IEC 60870-5-103 & IEC 61850 
5.4 GPS Time Sync Faci ity through IRIG-B (optiona ) 
5.5 Date/time synchronization through PC 
5.6 Re ay programming through front RJ45 port 
6. MONITORING
6.1 Current 
6.2 Vo tage 
6.3 Se ectab e CT ratio 
6.4 Se ectab e PT ratio 
6.5 Counters for each e ement 
7. USER INTERFACE
7.1 Test faci ity in Re ay setting Mode (off ine) 
7.2 Compact Modu e 
7.3 P ug In Type 

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RELAYS DIVISION
HANDLING
INSTALLATIONS &
CASE DIMENSIONS

HANDLING, INSTALLATIONS Page 2 of 5 AR49-III
& CASE DIMENSIONS
RELAYS DIVISION
CONTENTS
H ANDLING O F R ELAY
S TORAGE
R ELAY A ND R ACK M OUNTING
C ASE D IMENSIONS

HANDLING, INSTALLATIONS Page 3 of 5 AR49-III
& CASE DIMENSIONS
RELAYS DIVISION
HANDLING OF RELAY
Protective rela s generall of robust construction require careful treatment prior to installation on site.
Care must be taken when unpacking and installing the rela s so that none of the parts are damaged. Rela s
must be handled b skilled personnel. The following should be taken into account while handling the rela :
 The rela use components that are sensitive to electrostatic discharges. The rela comprises of various
semi-conductor devices which can damage if touched b means of direct contact. Handle the cards in static
free environment since electrostatic discharge can affect performance of the rela or cause damage to the
cards.
 The electronic circuits are well protected b the metal case and the internal module should not be
withdrawn unnecessaril .
 The rela is normall shipped in separatel packed condition. After unpacking, see if there is an
mechanical damage to the cabinet, the nameplate, terminal blocks etc. Damage of an such sort identified
shall be intimated to works.
 Avoid plugging in/ pulling out the cards when the power is ON.
 Do not appl CT inputs when auxiliar suppl is switched OFF.
 If the cards are withdrawn for testing, ensure proper positioning while replacing.
 Keep the rela s in well-packed condition in a dust-free dr environment without direct exposure to
sunlight.
The rela is shipped from factor after detailed testing b our Qualit Control Department. However,
according to the customer requirement the rela settings/ functions can be verified before commissioning
at respective sites with proper testing kits.
STORAGE
If rela s are not to be installed immediatel upon receipt the should be stored in a place free from
dust and moisture in their original boxes. At most care should be taken while storage.
Storage temperature: -25ºC to +55ºC.

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& CASE DIMENSIONS
RELAYS DIVISION
RELAY AND RACK MOUNTING

HANDLING, INSTALLATIONS Page 5 of 5 AR49-III
& CASE DIMENSIONS
RELAYS DIVISION
CASE DIMENSIONS

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RELAYS DIVISION
USER GUIDE