ALIND AN+ Series User manual

NUMERICAL OVER CURRENT AND CURRENT
UNBALANCE PROTECTION RELAY
AR54 [AN+ SERIES]
USER MANUAL
ALUMINIUM INDUSTRIES LIMITED
RELAYS DIVISION, THIRUVANATHAPURAM

RELAYS DIVISION
AR54
Numerical Over Current and Current Unbalance
Protection Relay
CONTENTS
SAFETY REQUIREMENTS AR54-I
INTRODUCTION AR54-II
HANDLING INSTALLATIONS &CASE DIMENSIONS AR54-III
USER GUIDE AR54-IV
TECHNICAL DATA &CHARACTERISTIC CURVES AR54-V
TROUBLE SHOOTING AR54-VI
COMMUNICATION AR54-VII

Page 1of 7AR54-I
RELAYS DIVISION
SAFETY
REQUIREMENTS

SAFETY REQUIREMENTS Page 2of 7AR54-I
RELAYS DIVISION
CONTENTS
INTRODUCTION
HEALTH AND SAFETY
SYMBOLS AND EXTERNAL LABELS ON THE RELAY
INSTALLING,COMMISSIONING AND SERVICING
_______
DECOMMISSIONING AND DISPOSAL
TECHNICAL SPECIFICATION FOR SAFETY

SAFETY REQUIREMENTS Page 3of 7AR54-I
RELAYS DIVISION
INTRODUCTION
Before using this product, be sure to read this chapter carefully.
This chapter describes safety precautions when using the relay. Before installing and using the
equipment, read and understand this chapter thoroughly.
It’s not a secret – electricity can be dangerous and when things go wrong lives can be at stake!
Electrical engineers are Industrial safety doctors, so it’s our duty to keep employees health and
maintain a quality of life that we all deserve by providing safe work practices to avoid electrical
accidents.
How much electricity is dangerous?????
CURRENT
EFFECT
0.5 –3mA
Tingling sensations
3 –10mA
Muscle contractions (painful)
10 –40mA
“can’t let go” phenomena
40 –75mA
Respiratory paralysis (possibly fatal)
75 –200mA
Ventricular fibrillation (likely fatal)
200 –500mA
Heart clamps tight
>1.5A
Tissue and organs began to burn
Fact: A 15 amp circuit breaker was designed to protect equipment –not people!
The relay is developed with zero percentage of risk factor by its own design. The current carrying
paths and circuits are isolated from the metal case and structure. Suitable clearance depending on the
type of insulation required for different classes are provided.
The relay confirms to Product safety requirement standard IEC 60255-27.

SAFETY REQUIREMENTS Page 4of 7AR54-I
RELAYS DIVISION
HEALTH AND SAFETY
It deals with the handling of relay in proper way. An individual to be considered as ‘qualified’ with
regard to certain equipment in the workplace, but ‘unqualified’ as to other equipment. “An employee,
who is undergoing on the job training and who, in the course of such training, has demonstrated the
ability to perform duties safely at his or her level of training and who is under the direct supervision of
a qualified person also considered to be a qualified person for the performance of those duties.”
The following requirements must be met, in the order given, before circuits or equipments are re-
energized, even temporarily.
People handling the equipment should be aware about the relay safety handlet.
Ensure that the product is in the off condition before working on the conducting or terminal side.
A qualified person must conduct tests and visual inspections, as necessary, to verify that tools
electrical jumpers, shorts, grounds and other such devices have been removed, so that the
circuits and equipments can be safely re-energized.
Employees exposed to the hazards associated with re-energizing the circuit or equipment must
be warned to stay clear of the circuits and equipment.
Each lock and tag must be removed by the employee who applied it or someone else under that
employee’s direct supervision.
A visual determination that all employees are clear of the circuits and equipments must be made.
For any queries related to relays, feel free to contact ALIND.

SAFETY REQUIREMENTS Page 5of 7AR54-I
RELAYS DIVISION
SYMBOLS AND LABELS USED IN THE RELAY
1. FRONT SIDE
Caution: refer to equipment
documentation
Caution: risk of electric shock
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) purpose. Confirm
polarity of the battery while replacing.
IEC 61850 sticker

SAFETY REQUIREMENTS Page 6of 7AR54-I
RELAYS DIVISION
WARNING
Current transformer circuit
Never allow the current transformer (CT) secondary circuit connected to this
equipment to be opened while the primary system is live. Opening the CT circuit
will produce a dangerous high voltage.
Exposed terminals
Do not touch the terminals of this equipment while the power is on, as the high
voltage generated is dangerous.
Residual voltage
Hazardous voltage can be present in the DC circuit just after switching off the DC
power supply. It takes about 30 seconds for the voltage to discharge.
CAUTION
Earth
Earth the earthing terminal of the equipment securely.
Operation conditions
Use the equipment within the range of ambient temperature, humidity and dust as
detailed in the specification and in an environment free of abnormal vibration.
Ratings
Before applying AC voltage and current or DC power supply to the equipment,
check that they conform to the equipment ratings.
Printed circuit board
Do not attach and remove the printed circuit board while the DC power to the
equipment is on, as this may cause the equipment to malfunction.
External circuit
When connecting the output contacts of the equipment to an external circuit,
carefully check the supply voltage used and prevent the connected circuit from
overheating.
Connection cable
Carefully handle the connection cable without applying excessive force.

SAFETY REQUIREMENTS Page 7of 7AR54-I
RELAYS DIVISION
Modification
Do not modify this equipment, as this may cause the equipment to malfunction,
and any such cases, warranty may be affected.
DECOMMISIONING AND DISPOSAL
De-commissioning
The supply input (auxiliary) for the equipment may include capacitors across
the supply or to earth. To avoid electric shock or energy hazards, after completely
isolating the supplies to the equipment, the capacitors should be safely discharged
via the external terminals prior to de-commissioning.
ANGER
Disposal
When disposing of this equipment, do so in a safe manner according to local
regulations. It is recommended that incineration and disposal to water courses is
avoided. Ensure the relay is in de energized condition and take precautions to
avoid short circuits.
TECHNICAL SPECIFICATIONS FOR SAFETY
1. Protective class
IEC 60255-27:2005 Class I (This equipment requires a protective
conductor (earth) connection to ensure
user safety.
2. Environment
IEC 60255-27:2005 Pollution degree 2 (Normally only non-conductive pollution
occurs except occasionally a temporary
conductivity caused by condensation is to be
expected.)
3. Overvoltage Category
IEC 60255-27:2005 Category III (The auxiliary energizing circuits of the
equipment are connected to a common battery,
common mode transient voltages of a relatively
high value may appear on the supply leads, and
differential mode voltages may arise from
switching in other circuits connected to the same
battery source.
4. Contact data Test voltage across open contact: 1 kV DC for
1 min source.

Page 1of 6AR54-II
RELAYS DIVISION
INTRODUCTION

INTRODUCTION Page 2of 6 AR54-II
RELAYS DIVISION
CONTENTS
AN SERIES DESCRIPTION
PREVIOUS HISTORY OF CAPACITOR BANK PROTECTION RELAYS
BRIEF DESCRIPTION OF AR54
MAIN FUNCTIONS
GENERAL FUNCTIONS

INTRODUCTION Page 3of 6 AR54-II
RELAYS DIVISION
AN+ SERIES (ALIND NUMERICAL SERIES)
Advanced Digital Fourier Transform based Numerical algorithm design using 32-bit Digital Signal
Controller.
Compact Construction covering several protection modules viz Over Current Protection, Earth Fault/
Restricted Earth Fault protection along with Trip Circuit supervision in single module thus saving panel
space.
Display of protection acted, fault current, fault clearing time, fault date & time of latest 200 faults at
Relay LCD.
Man-Machine Communication through 20x4 character LCD display.
Self-supervision of both hardware and software units.
Interface ability with SCADA through IEC 60870-5-103 & IEC 61850 communication protocol
Facility for storing fault waveforms (Disturbance recorder) and events with date and time stamping. At
a time, a total of 5000 events and 200 latest fault waveform (Disturbance recorder) will be stored in the
relay.
Graphical User Interface for Harmonic analysis, DC analysis and di/dt analysis can be done on the
uploaded fault waveforms with facility for report generation.
Facility to access/modify the relay settings both online as well as through menu in local PC
Relay Indication (LED) reset from RCC
IP 54 grade enclosure protection.
SNTP (Simple Network Time Protocol) & optional GPS based IRIG -B time code standard
Synchronization Facility.
Online HV current & LV current display on relay LCD.
Settable CT ratios.
Relay operation Counter

INTRODUCTION Page 4of 6 AR54-II
RELAYS DIVISION
PREVIOUS HISTORY OF CAPACITOR BANK RELAYS
AFC 204
Numerical Capacitor Bank relay
Disturbance & event recorder.
Built in counter facility.
ANC 214:
The relay conforms to RDSO specification No. TI/SPC/PSI/PROTCT/6071. ANC 214 (AN Series) relay is a
comprehensive Integrated Capacitor Bank Protection relay for the protection of conventional 27 KV AC
single phase, 50Hz Over Head Equipment (OHE).
ANC 402/ 033:
The relay conforms to RDSO specification No. TI/SPC/PSI/PROTCT/7100(07/2012). ANC 402/ 033 (AN
Series) relay is a comprehensive Integrated Feeder Protection relay for the protection of 2x 25 KV (AT
feeding system) AC single phase, 50Hz Over Head Equipment (OHE).

INTRODUCTION Page 5of 6 AR54-II
RELAYS DIVISION
Designed as per RDSO specification no. TI/SPC/PSI/PROTCT/7101.
ALIND
RELAYS
AR54X1X2 V & I Rating code
Communication Code
Current Unbalance Protection
Over Current Protection
PROTECTION FEATURES
AR54 conforms to RDSO specification no. TI/SPC/PSI/PROTCT/7101. AR54 (AN+ Series) relay is a
comprehensive Capacitor Bank protection relay using in 2X25KV AC Traction substation.
V & I Rating codes-X2
1
1A CT
2
110V AC& 1A
3
110V AC& 5A
4
230V AC& 110V DC
5
5A CT
6
100AC& 1A
7
100AC& 5A
8
100AC
9
110V AC
Communication naming codes- X1
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
Protection naming codes
0.
None
1.
Panto Flash Over Protection
2.
Distance Protection
3.
Under/Over Voltage
Protection
4.
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 6of 6 AR54-II
RELAYS DIVISION
MAIN FUNCTIONS
Sl No.
PARTICULARS
AR54
1.
MAIN PROTECTIONS
1.1
IDMT OC Protection

1.4
Current Unbalance Protection

1.5
Time Delay Relay

1.6
LBB

1.7
Relay Error

2.
STATUS INPUTS
2.1
AP/GP LOW ALARM

2.2
AP/GP LOW TRIP & LOCK

2.3
BRKR STATUS NC

2.4
BRKR STATUS NO

2.5
RCC RESET

2.6
TIME SYNC

2.7
UNBALANCE RESET

2.8
TRIPCIRCUIT FAIL

GENERAL FUNCTIONS
Sl No.
PARTICULARS
AR54
1.
Password protection

2.
Event Memory
5000
3.
Disturbance recorder waveforms
200
4.
50 cycles (45 pre and 5 post fault) of fault
waveform

5.
COMMUNICATION
5.1
GUI Interface
RJ45
5.2
Isolated RS 485 Interface

5.3
Communication Protocol Interface- IEC 60870-5-
103 & IEC 61850

5.4
GPS Time Sync Facility through IRIG-B

5.5
Date/time synchronization through PC

5.6
Relay programming through Mini USB port

6.
MONITORING
6.1
Line Current (IDMT)

6.2
Unbalance Current

6.5
Counters for each element

7.
USER INTERFACE
7.1
Test facility in Relay setting Mode (offline)

7.2
Compact Module

7.3
Plug In Type


Page 1of 5 AR54-III
RELAYS DIVISION
HANDLING
INSTALLATIONS &
CASE DIMENSIONS

HANDLING, INSTALLATIONS Page 2of 5 AR54-III
& CASE DIMENSIONS
RELAYS DIVISION
CONTENTS
HANDLING OF RELAY
STORAGE
RELAY AND RACK MOUNTING
CASE DIMENSIONS

HANDLING, INSTALLATIONS Page 3of 5 AR54-III
& CASE DIMENSIONS
RELAYS DIVISION
HANDLING OF RELAY
Protective relays generally of robust construction require careful treatment prior to installation on site.
Care must be taken when unpacking and installing the relays so that none of the parts are damaged.
Relays must be handled by skilled personnel. The following should be taken into account while
handling the relay:
The relay use components that are sensitive to electrostatic discharges. The relay comprises of
various semi-conductor devices which can damage if touched by means of direct contact. Handle
the cards in static free environment since electrostatic discharge can affect performance of the
relay or cause damage to the cards.
The electronic circuits are well protected by the metal case and the internal module should not be
withdrawn unnecessarily.
The relay is normally shipped in separately packed condition. After unpacking, see if there is any
mechanical damage to the cabinet, the nameplate, terminal blocks etc. Damage of any such sort
identified shall be intimated to works.
Avoid plugging in/ pulling out the cards when the power is ON.
Do not apply CT inputs when auxiliary supply is switched OFF.
If the cards are withdrawn for testing, ensure proper positioning while replacing.
Keep the relays in well-packed condition in a dust-free dry environment without direct exposure
to sunlight.
The relay is shipped from factory after detailed testing by our Quality Control Department. However,
according to the customer requirement the relay settings/ functions can be verified before
commissioning at respective sites with proper testing kits.
STORAGE
If relays are not to be installed immediately upon receipt they 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.

HANDLING, INSTALLATIONS Page 4of 5 AR54-III
& CASE DIMENSIONS
RELAYS DIVISION
RELAY AND RACK MOUNTING

HANDLING, INSTALLATIONS Page 5of 5 AR54-III
& CASE DIMENSIONS
RELAYS DIVISION
CASE DIMENSIONS