NVA100X
20Pages

“Something better than protective relays” NVA100X FEEDER, LoM & POWER PROTECTION RELAY THE COMPREHENSIVE SOLUTION FOR FEEDERS AND UTILITIES PROTECTION U L1, U L2, U L3 UE CTs-VTS input ThySensor inputs Overux (V/Hz) Synchrocheck Pt100 thermal probes Undervoltage Positive sequence undervoltage Directional active overpower Directional reactive overpower Undercurrent Directional active underpower Directional reactive underpower Loss of eld Negative sequence overcurrent Neutral unbalance overcurrent with compensation Negative/positive sequence current ratio Phase reversal Thermal image (for Lines/Transformers or Motor/Generators) 50/51 Phase overcurrent 50/51(RMS) RMS Phase overcurrent 51LR(48)/14 Locked rotor 51V Voltage restraint overcurrent 50N/51N/87NHIZ* Residual overcurrent 50N(Comp)/51N(Comp) Calculated residual overcurrent 55 Minimum power factor 59 Overvoltage 59N Residual overvoltage 59V2 Negative sequence overvoltage 66 Maximum number of startings (Restart inhibition) 67 Phase directional overcurrent 67N Ground directional overcurrent DPHI Vector jump 81O/81U Overfrequency and underfrequency 81R Frequency rate of change BF Circuit breaker failure 74CT, 74VT CT-VT supervision 74TCS Trip circuit supervision FL Fault locator 79 Automatic reclosure Note *: when 87NHIZ is enabled, the 50N/51N/67N functions can not be used with residual current (IE) measured directly CONTROL & MONITORING - PLC - TCS - CB MONITORING,.. - SNTP - IRIG-B COMMUNICATION - Modbus RS485 - Modbus TCP/IP - IEC61850 - IEC 870-5-103/DNP3

Note I: comparison between a voltage applied to the UE (residual voltage input) and three voltage inputs UL 7, UL2, UL3 Note 2:46 protective function for Lines/Transformers (46LT) or Motor (46M)/Generator (46G) Note 3:49 protective function for Lines/Transformers (49LT) or Motor/ Generator (49MG) Note 4: when 87NHIZis used, the 50N/5IN/67N functions can not be used with residual current (fc) measured directly Note 5: The side (H or L) where the residual current is computed can be select (km or kci)

— Measuring inputs with inductive CTs and VTs • Three phase current inputs and one residual current input, with nominal currents independently selectable at 1 A or 5 A through sw setting. • Three phase voltage inputs with programmable nominal voltages within range 50...130 V (UR =100 V) or 200...520 V (UR =400 V) and one residual voltage input, with programmable nominal voltage within range 50...130 V (UER =100 V). — Measuring inputs with ThySensor devices (NVA100X-P) • Three phase current inputs, with 630 A primary rated current. • One residual current input, with nominal currents...

— Control and monitoring Several predened functions are implemented: • Activation of two set point proles • Phase CTs and VTs monitoring (74CT and 74VT) • Logic selectivity • Cold load pickup (CLP) with block or setting change • Trip circuit supervision (74TCS) • Second harmonic restraint (inrush) • Remote tripping • Synchronization via NTP or IRIG-B (optional) • Automatic reclosing (79) • Fault location • Circuit Breaker commands and diagnostic. Moreover user dened logic must be customized in accordance with IEC 61131-3 protocol by means programmable logic controller (PLC). Circuit Breaker...

Mechanical data Mass (flush mounting case) Insulation tests Reference standards High voltage test 50Hz Impulse voltage withstand (1.2/50 u.s) Insulation resistance Reference standards — EMC tests for interference immunity 1 MHz damped oscillatory wave Electrostatic discharge Fast transient burst (5/50 ns) Conducted radio-frequency fields Radiated radio-frequency fields High energy pulse Damped oscillatory wave Ring wave Conducted common mode (0...150 kHz) Reference standards Climatic tests Reference standards Mechanical tests Reference standards Safety requirements Reference standards...

Short duration current (0,5 s) Make Minimum switching load Breaking capacity: • Direct current (L/R = 40 ms) • Alternating current (λ = 0,4) — Block output (Logic selectivity) Quantity Type — LEDs Quantity • ON/fail (green) • Start (yellow) • Trip (red) • Allocatable (red) MAIN SETTINGS — Rated values (all versions) B9-B10 Voltage measure UE or V2 V1-V2 phase correction 0...360 ° V1 voltage measure for synchrocheck element U12 /UL1 Relay nominal frequency (f n) 50, 60 Hz Relay residual nominal current (IEn) 1 A, 5 A Residual CT nominal primary current (IEnp) 1 A...10 kA Relay nominal...

— Thermal protection with PtIOOthermometric probes - 26 Note: The element becomes available when the MPT board is available Common configuration: • Voltage measurement type for 27 (Utype27) • 27 Operating logic [Logic!!) • U<Curve type ((/<Curve) DEFINITE, INVERSE121 Definite time • 27 First threshold definite time [U<M] • U<def Operating time (fu<def) Inverse time • 27 First threshold inverse time (U<\m) • (7<inv Operating time (flj<inv) Definite time • 27 Second threshold definite time (f/«def) 0.05...1.10 U„/E„ • y«def Operating time (fu«def) 0.03...100.0 s Note I: On MMI, with t/ph-ph...

— Negative sequence for Line-Transformer - 46LT I2> Element • I2> Curve type DEFINITE, IEC/BS A, B, C - ANSI/IEEE MI, VI, EI, I2t , EM • CLP Activation time (t 2CLP>) 0.00...100.0 s 0.00...100.0 s • I2> Reset time delay (t 2 > RES) Denite time 0.100...10.00 In • 46LT First threshold denite time (I2 > def ) 0.100...10.00 In • I2 > def within CLP (I2CLP>def ) 0.03...200 s • I2 > def Operating time (t 2 > def ) Inverse time 0.100...10.00 In • 46LT First threshold inverse time (I2 >inv) • I2 >inv within CLP (I2CLP>inv) 0.100...10.00 In • I2 >inv Operating time (t 2 >inv) 0.02...60.0 s I2>>...

— Locked rotor - 50S/51LR/14 I LR> Element With/without speed control • Operating mode (Mode 51LR>) Inverse time • 51LR First threshold inverse time (ILR >inv) 0.80...8.00 IB • Motor starting current I-MOT-ST (IMOT-ST) 0.80...15.00 IB • I LR>inv Operating time (t LR >inv ) 0.10...200 s I LR>> Element With/without speed control • Operating mode (Mode 51LR>>) 0.00...200 s • CLP Activation time (t LRCLP>> def ) Denite time 0.90...8.00 IB • 51LR Second threshold denite time (ILR >> def ) 0.10...200 s • I LR>>def Operating time (t LR >> def ) Note - The mathematical formula for INVERSE curves...