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ALIND AN Series User Manual

Numerical switching relay
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NUMERICAL SWITCHING RELAY
ANS 321 [AN SERIES]
User Manual
THE ALUMINIUM INDUSTRIES LIMITED
RELAYS DIVISION, TRIVANDRUM

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  • Page 1 NUMERICAL SWITCHING RELAY ANS 321 [AN SERIES] User Manual THE ALUMINIUM INDUSTRIES LIMITED RELAYS DIVISION, TRIVANDRUM...
  • Page 2  SAFETY REQUIREMENTS ANS 321- I  INTRODUCTION ANS 321-II  HANDLING INSTALLATIONS & CASE DIMENSIONS ANS 321-III  USER GUIDE ANS 321-IV  TECHNICAL DATA & CHARACTERISTIC CURVES ANS 321-V  TROUBLE SHOOTING ANS 321-VI...
  • Page 3 ANS 321-I Page 1 of 8...
  • Page 4 SAFETY REQ. ANS 321-I Page 2 of 8  INTRODUCTION  HEALTH AND SAFETY  SYMBOLS AND EXTERNAL LABELS ON THE RELAY  INSTALLING, COMMISSIONING AND SERVICING  DECOMMISSIONING AND DISPOSAL  TECHNICAL SPECIFICATION FOR SAFETY...
  • Page 5 SAFETY REQ. ANS 321-I Page 3 of 8 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 –...

  • Page 6: Health And Safety

    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.

  • Page 7: Front Side

    SAFETY REQ. ANS 321-I Page 5 of 8 SYMBOLS AND LABELS USED IN THE RELAY FRONT SIDE Caution: refer to equipment documentation Caution: risk of electric shock REAR SIDE Protective Conductor (*Earth) terminal Functional/Protective Conductor (*Earth) terminal. CMOS Battery provided for the RTC (Real Time Clock) purpose.
  • Page 8 SAFETY REQ. ANS 321-I Page 6 of 8 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.
  • Page 9 SAFETY REQ. ANS 321-I Page 7 of 8 External circuit When connecting the output contacts of the equipment to an external circuit, carefully check supply voltage used prevent connected circuit from overheating. Connection cable Carefully handle the connection cable without applying excessive force.

  • Page 10: Technical Specifications For Safety

    SAFETY REQ. ANS 321-I Page 8 of 8 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...
  • Page 11 ANS 321-II Page 1 of 12...
  • Page 12 INTRODUCTION ANS 321-II Page 2 of 12  AN SERIES DESCRIPTION  BRIEF DESCRIPTION OF ANS 321  MAIN FUNCTIONS  GENERAL FUNCTIONS...
  • Page 13 INTRODUCTION ANS 321-II Page 3 of 12 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 ...
  • Page 14 INTRODUCTION ANS 321-II Page 4 of 12  Settable CT and PT ratio.  CB close and open command initiation from relay through RCC. ANS RELAYS ANS series relays are designed for” ON LOAD SWITCHING” of feeding power supply alternatively in the “NEUTRAL SECTION” which is separated by the two sets of sections with TSS and SP, so that voltage available within the neutral section is of same phase at any given time.
  • Page 15 INTRODUCTION ANS 321-II Page 5 of 12 ANS 321 relay monitor current through three CT’s for detecting the presence of traction load and changeover the supply of neutral section by controlling connected Circuit Breakers .The changeover of supply in Neutral Section are controlled by three Circuit Breakers. ANS relay facilitate in automatic changeover at high speed so as to allow the loco to pass the neutral section and it's also possible for the loco to run the neutral section without reducing the speed or driver's intervention...
  • Page 16 INTRODUCTION ANS 321-II Page 6 of 12 SEQUENCE OF OPERATIONS WHEN CT1 READS FIRST 1→0 (After CB3 trips relay) 0→1 (After getting CB3 trip status+ close delay) Final Condition 1→0(After trip delay) 0→1(After getting CB1 trip status close delay) Final Condition 1→0 (Forwad under...
  • Page 17 INTRODUCTION ANS 321-II Page 7 of 12 If all PT’s were in healthy condition, CB1 and CB3 will be in close condition and CB2 will be in tripped condition allowing the locomotive to enter the three IOLs in both directions. Initially all CT’s reads zero current as no loco is present in any IOL.
  • Page 18 INTRODUCTION ANS 321-II Page 8 of 12 SEQUENCE OF OPERATIONS IF CT3 READS FIRST 1→0 (After CB1 trips relay) 0→1 (After getting CB1 trip status+ close delay) Final Condition 1→0(After trip relay) 0→1(After getting trip status CB1 close delay) Final Condition 1→0 (Reverse under...
  • Page 19 INTRODUCTION ANS 321-II Page 9 of 12 Initially all CT’s reads zero current as no loco is present in any IOL. When loco comes from feed B (Reverse direction) and approaching IOL3, CT3 starts reading. When CT3 current reads above switching current setting the relay will trip CB1 (after CB1 trip delay).
  • Page 20 INTRODUCTION ANS 321-II Page 10 of 12 PT FAILURE In case of any PT failure, all CB’s are tripped on the set delay (0-2000ms) without considering any other factors. In case of PT dead condition or DJ OFF condition, the loco pilot shall put down the pantograph.

  • Page 21: Reverse Direction

    INTRODUCTION ANS 321-II Page 11 of 15 REVERSE DIRECTION ANS321 ANS 321 STATE CONDITION Remarks CONDITION ON Remarks BEFORE PT fail RESTORING PT Initial condition Relay restores (no loco present to initial in ASNS). condition after restoring of PT. Forward Relay restores sequence started to 1 1 0...

  • Page 22: Main Functions

    INTRODUCTION ANS 321-II Page 12 of 15 MAIN FUNCTIONS PARTICULARS ANS 321 MAIN FUNCTIONS AUTOMATIC SWITCHING   PT_ FAILURE  RELAY FAIL STATUS INPUTS  Breaker status 1 NC  Breaker status 1 NO  Breaker status 2 NC ...

  • Page 23: General Functions

    INTRODUCTION ANS 321-II Page 13 of 15 GENERAL FUNCTIONS PARTICULARS ANS 321 Password protection  Event Memory 5000 Disturbance recorder waveforms 50 cycles (45 pre and 5 post fault) of  fault waveform COMMUNICATION GUI Interface Mini USB Isolated RS 485 Interface ...
  • Page 24 INTRODUCTION ANS 321-II Page 14 of 1 RELAY SETTINGS DESCRIPTION 1. Automatic Switching(Common for CT1 in forward direction and CT3 in reverse direction)  Switching In current-The current above which the Switching operation starts.  Guard setting-If both CT1 & CT3 currents rise above the set value, the relay will trip all CBs.
  • Page 25 ANS 321-III Page 1 of 6...
  • Page 26 HANDLING INST. & ANS 321-III Page 2 of 6 CASE DIMENS.  HANDLING OF RELAY  STORAGE  RELAY AND RACK MOUNTING  CASE DIMENSIONS...
  • Page 27 HANDLING INST. & ANS 321-III Page 3 of 6 CASE DIMENS. 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.
  • Page 28 HANDLING INST. & ANS 321-III Page 4 of 6 CASE DIMENS. 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.

  • Page 29: Case Dimensions

    HANDLING INST. & ANS 321-III Page 5 of 6 CASE DIMENS. CASE DIMENSIONS...
  • Page 30 HANDLING INST. & ANS 321-III Page 6 of 6 CASE DIMENS.
  • Page 31 ANS 321-IV Page 1 of 12...
  • Page 32 USER GUIDE ANS 321-IV Page 2 of 12  FRONT PANEL INDICATIONS  INTERNAL ARCHITECTURE AND BLOCK DIAGRAM  ENERGIZING THE RELAY  PCB DESCRIPTION...

  • Page 33: Front Panel Indications

    USER GUIDE ANS 321-IV Page 3 of 12 FRONT PANEL INDICATIONS...

  • Page 34: Lcd Display

    USER GUIDE ANS 321-IV Page 4 of 12 Legend ANS 321 LCD DISPLAY  PROTECTION HEALTHY (Green/Amber)  PT 1 HEALTHY  PT 2 HEALTHY  CB1 TRIP  CB2 TRIP  CB3 TRIP    CB1 CLOSE  CB2 CLOSE ...
  • Page 35 USER GUIDE ANS 321-IV Page 5 of 12 Increment key Menu Decrement key Menu key  Main key for entering relay setting mode.  If you want to select anything in the setting mode we can use this key.  To reset the relay from tripping mode. Increment key ...

  • Page 36: Led Indications

    USER GUIDE ANS 321-IV Page 6 of 12 INTERNAL ARCHITECTURE AND BLOCK DIAGRAM INTERNAL SYSTEM LEVEL ARCHITECTURE- ANS 321 The internal system level architecture of relay including card to card architecture in brief is shown below MICROCONTROLLER TRANSFORMER& 20 x 4 LCD CARD TRIP RELAY CARD Signal...

  • Page 37: Block Diagram

    USER GUIDE ANS 321-IV Page 7 of 12 BLOCK DIAGRAM ANS 312...
  • Page 38 USER GUIDE ANS 321-IV Page 8 of 12 1. DSP Controller The dsPIC DSC (Digital Signal Controller) is a 16-bit modified Harvard RISC (Reduced Instruction Set Computer) machine that combines the control advantages of a high-performance 16-bit microcontroller with the high computation speed of a fully implemented Digital Signal Processor (DSP).
  • Page 39 USER GUIDE ANS 321-IV Page 9 of 12 2.Waveform pointed by user displays the voltage, current & sample value of the particular point. RS 485 Communication Port RS 485 port is provided for SCADA connectivity. Using RS485 port online fault data of critical parameters, disturbance record (Waveform), event record (Trip data, R, X, FD, etc.), Automatic Supervision and Control (healthiness of Relay), Alarm and Event Handling, Data Acquisition, Calculating and...
  • Page 40 USER GUIDE ANS 321-IV Page 10 of 12 ENERGIZING THE RELAY 1. Before turning ON the relay, proper earthing should be provided. 2. Visual Inspection for any physical damage in housing, display etc. shall be checked. 3. Operating voltage range: 45 to 170 VDC. Operating voltage: 110 V DC.

  • Page 41: Pcb Description

    USER GUIDE ANS 321-IV Page 11 of 12 PCB DESCRIPTION The relay comprises of the following hardware. Main PCBs. –Display PCB, Communication PCB, Controller PCB, Stack PCB, Trip relay & transformer PCB, SMPS PCB, I/O & status PCB, Back panel PCB. Display PCB: The Display PCB is mounted at the front plate of the unit.
  • Page 42 USER GUIDE ANS 321-IV Page 12 of 12 PCB: The communication PCB is mounted at the front side. This PCB supports the communication through USB for data exchange. Also the Hardware Reset Switch is mounted in this PCB. Stack PCB: Internal communications between the PCB’s are ensured with the help of stack PCB.
  • Page 43 ANS 321-V Page 1 of 6...

  • Page 44: Technical Data

    TECHNICAL DATA ANS 321-V Page 2 of 6  TECHNICAL SPECIFICATIONS  GENERAL SETTINGS  TB DETAILS  RELAY CONFORMING STANDARDS...

  • Page 45: Technical Specifications

    TECHNICAL DATA ANS 321-V Page 3 of 6 TECHNICAL SPECIFICATIONS Sl No Specification Particulars Current Input(rated) 5 Amps Auxiliary Supply 45 to 260 VDC VA burden on CT Less than 0.5 VA VA burden on PT Less than 0.5 VA VA burden on Aux Less than 15 Watts(energized) Less than 10 watts( de-energized)

  • Page 46: General Settings

    TECHNICAL DATA ANS 321-V Page 4 of 6 GENERAL SETTINGS General Settings Particulars Password protection (YES/NO) 0000-9999 1. General settings 1. CT Primary 5-5000A in steps of 5A 2. CT Secondary 1-5A in steps of 1A 3. PT Primary 110 to 30000V in steps of 10V 4.
  • Page 47 TECHNICAL DATA ANS 321-V Page 5 of 6 3) PT_FAILURE 1. PT Threshold 0-110V in steps of 1V 2. CB Trip delay 0-60000ms in steps of 10ms 3. CB close delay 0-60000ms in steps of 10ms...
  • Page 48 TB DETAILS ANS 321 TECHNICAL DATA ANS 321-V Page 6 of 6...
  • Page 49 RELAY CONFORMING STANDARDS The relay conforms to the following standards: Standards Description IEC 60255-16 MPEDANCE EASURING ELAY UNCTIONAL EQUIREMENTS FOR NDER IEC 60255-151 URRENT ROTECTION NSULATION COORDINATION OF MEASURING RELAYS AND IEC 60255-5 PROTECTION EQUIPMENT REQUIREMENTS AND TESTS EASURING RELAYS AND PROTECTION EQUIPMENT IEC 60255-1 OMMON REQUIREMENTS IEC 60255-21-1...
  • Page 50 ANS 321-VI Page 1 of 2...

  • Page 51: Troubleshooting

    TROUBLESHOOTING ANS 321-VI Page 2 of 2 Under normal working conditions, the ‘PROTECTION HEALTHY LED’ provided in the front panel of the relay glows green. The same LED turns amber to recognize any fault inside the relay itself. Following are certain guidelines for the relay to identify the nature of fault and necessary checking procedures to be adopted at site so that relay can be rectified suitably Causes...
  • Page 52 THE ALUMINIUM INDUSTRIES LTD Relays Division, Kavinpuram, Vilappilsala (P.O) Trivandrum, Kerala, India-695 573 Ph: 0471-2379704, 2379503 Web: alindrelays.com Email: alindrelays@yahoo.com Subject to change without notice Published On: 09/2018...

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Ans 321 ii

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