ALIND AN Series User manual

NUMERICAL CAPACITOR BANK PROTECTION RELAY
ANC 303[AN SERIES]
User Manual
ALUMINIUM INDUSTRIES LIMITED
RELAYS DIVISION
THIRUVANANTHAPURAM

ALUMINIUM INDUSTRIES LIMITED
Relays Division
ANC 303
Numerical Capacitor Bank Protection Relay
CONTENTS
SAFETY REQUIREMENTS
INTRODUCTION
HANDLING INSTALLATIONS &CASE DIMENSIONS
USER GUIDE
TECHNICAL DATA &CHARACTERISTIC CURVES
TROUBLE SHOOTING
COMMUNICATION

Page 1of 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
Relays Division
SAFETY
REQUIREMENTS

SAFETY REQUIREMENTS Page 2of 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
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 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
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 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
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 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
Relays Division
SYMBOLS AND LABELS USED IN THE RELAY
1. FRONT SIDE
Caution: refer to equipment documentation Caution: risk of electric shock
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.

SAFETY REQUIREMENTS Page 6of 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
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 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
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 minsource.

Page 1of 4 ANC 303
ALUMINIUM INDUSTRIES LIMITED
Relays Division
INTRODUCTION

INTRODUCTION Page 2of 4 ANC 303
ALUMINIUM INDUSTRIES LIMITED
Relays Division
CONTENTS
AN SERIES DESCRIPTION
PREVIOUS HISTORY OF CAPACITOR BANK PROTECTION RELAYS
BRIEF DESCRIPTION OF ANC 303
MAIN FUNCTIONS
GENERAL FUNCTIONS

INTRODUCTION Page 3of 4 ANC 303
THE ALUMINIUM INDUSTRIES LIMITED
Relays Division
AN SERIES (ALIND NUMERICAL SERIES)
➢Advanced Digital Fourier Transform based Numerical algorithm design using 16-bit Digital
Signal Controller (DSC).
➢Compact Construction covering several protection modules saving panel space.
➢Man-Machine Communication through 20x4 character LCD display and LEDs.
➢Self supervision of both hardware and software units.
➢Interface ability with SCADA is achieved through IEC 60870-5-103 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 waveforms (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
through SCADA at RCC.
➢Relay Indication (LED) reset from RCC.
➢Suitable password protection.
➢IP 54 grade enclosure protection.
➢GPS time Synchronization Facility.
➢Settable CT and PT ratios.
➢CB close and open command initiation from relay through RCC.
PREVIOUS HISTORY OF CAPACITOR BANK RELAYS
AFC 204 (OCR)
Numerical Capacitor Bank relay
Disturbance & event recorder.
Built in counter facility.
ANC 303
The relay is the modified version of our ANC 214 (AN Series) relay.
ALIND
NUMERICAL
CAPACITOR
ANC XXX
Number of Main protections
Number of PT Inputs
Number of CT inputs
ANC 303
The relay is the modified version of our AFC 204(AN Series) relay.
The relay conforms to RDSO SPEC No. TI/SPC/PROTCT/6071 & letter no.
ETR/252/RE/OT/03/2014-2015 dated 19.02.2015. ANC 303 (AN Series) relay is a
comprehensive Capacitor Bank Protection relay for the protection of shunt capacitor bank.

INTRODUCTION Page 4of 4 ANC 303
ALUMINIUM INDUSTRIES LIMITED
Relays Division
MAIN FUNCTIONS
Sl No. PARTICULARS ANC 303
1. MAIN PROTECTIONS
1.1 IDMT OC Protection ✓
1.2 Switching IN Protection ✓
1.3 Switching Out Protection ✓
1.4 Unbalance Protection ✓
1.5 Time Delay Relay ✓
1.6 LBB ✓
1.7 Relay Fail ✓
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 ✓
GENERAL FUNCTIONS
Sl No. PARTICULARS ANC 303
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 Mini USB
5.2 Isolated RS 485 Interface ✓
5.3 Communication Protocol Interface- IEC 60870-5-103 ✓
5.4 GPS Time Sync Facility ✓
5.5 Date/time synchronization through PC ✓
5.6 Relay programming through Mini USB port ✓
6. MONITORING
6.1 Line Current (IDMT) ✓
6.2 Feeder Current (Switching) ✓
6.3 Unbalance Current ✓
6.4 Counters for each element (IDMT, UB &LBB) ✓
7. USER INTERFACE
7.1 Test facility in Relay setting Mode (offline) ✓
7.2 Compact Module ✓
7.3 Plug In Type ✓

Page 1of 7 ANC 303
ALUMINIUM INDUSTRIES LIMITED
Relays Division
HANDLING
INSTALLATIONS
&CASE DIMENSIONS

HANDLING, INSTALLATIONS Page 2of 7 ANC 303
& CASE DIMENSIONS
ALUMINIUM INDUSTRIES LIMITED
Relays Division
CONTENTS
HANDLING OF RELAY
STORAGE
RELAY AND RACK MOUNTING
CASE DIMENSIONS

HANDLING, INSTALLATIONS Page 3of 7 ANC 303
& CASE DIMENSIONS
ALUMINIUM INDUSTRIES LIMITED
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 +70ºC.

HANDLING, INSTALLATIONS Page 4of 7 ANC 303
& CASE DIMENSIONS
ALUMINIUM INDUSTRIES LIMITED
Relays Division
RELAY AND RACK MOUNTING

HANDLING, INSTALLATIONS Page 5of 7 ANC 303
& CASE DIMENSIONS
ALUMINIUM INDUSTRIES LIMITED
Relays Division
CASE DIMENSIONS

HANDLING, INSTALLATIONS Page 6of 7 ANC 303
& CASE DIMENSIONS
ALUMINIUM INDUSTRIES LIMITED
Relays Division

HANDLING, INSTALLATIONS Page 7of 7 ANC 303
& CASE DIMENSIONS
ALUMINIUM INDUSTRIES LIMITED
Relays Division