Feeder Protection REF630, Motor Protection REM630, Generator…

Miscellaneous Electric Control Components

Contactors & Relays

Feeder Protection REF630, Motor Protection REM630, Generator Protection REG630 and Transformer Protection RET630

Product Description

a) Microprocessor based feeder protection and control - type REF630: Basic functions: Overcurrent, thermal overload, short circuit, earth fault, phase discontinuity, multi-shot autoreclosing, measurement, condition monitoring, trip circuit protection and communication, general and standard. b) Microprocessor based motor protection and control - type REM630: Basic functions: Motor startup, short circuit, thermal overload, undercurrent, unbalance, earth fault, phase reversal, measurement, condition monitoring, communication, general and standard. c) Microprocessor based transformer protection and control - type RET630: Basic functions: Differential protection, Overcurrent protection, short circuit protection, negative or positive sequence protection, measurement, condition monitoring, communication, general and standard. d) Microprocessor based generator protection and control - type REG630: Basic functions: Overcurrent, short circuit, thermal overload, earth fault, differential protection, measurement, ondition monitoring, communication, general and standard. Protection functions available in REF/REM/RET/REG 630 ANSI number Protection function REF 630 REM 630 RET 630 REG 630 51P-1 Three-phase non-directional overcurrent protection, low stage 3I> x x x x 51P-2 Three-phase non-directional overcurrent protection, high stage 3I>> x x x x 50P/51P Three-phase non-directional overcurrent protection, instantaneous stage 3I>>> x x x x 51V Voltage dependent overcurrent protection x 51NHA Harmonics based earth-fault protection x 67-1 Three-phase directional overcurrent, low stage 3I> ? x x x 67-2 Three-phase directional overcurrent, high stage 3I>> ? x x x 67Y1 Multifrequency admittance-based earth-fault protection x 46PD Phase discontinuity I2/I1 > x 49F Three-phase thermal overload for feeder 3Ith>F x 49TG Three-phase thermal overload protection,two time constants x 51N-1 Non directional Earth-fault protection, low stage Io > x x x x 51N-2 Non directional Earth-fault protection, high stage Io >> x x x x 50N/51N Non-directional Earth-fault protection, instantaneous stage Io >>> x x x 67N-1 Directional earth-fault, low stage Io > ? x x x x 67N-2 Directional earth-fault, high stage Io >> ? x x x x 67NIEF Transient/intermittent earth-fault Io > ? IEF x 27/59THD Third harmonic based stator earth fault protection x 46 Negative-sequence overcurrent I2 > x x 68 Three-phase current inrush detection 3I2f> x x x ANSI number Protection function REF 630 REM 630 RET 630 REG 630 59 Three-phase overvoltage 3U> x x x x 27RT Low voltageride through protection function x 27 Three-phase undervoltage 3U< x x x x 32Q27 Directional reactive power undervoltage protection x x 32R/32O Reverse power /directionlal overpower x 47O+ Positive-sequence overvoltage U1> x x x x 47U+ Positive-sequence undervoltage U1< x x x x 47O- Negative-sequence overvoltage U2> x x x x 59G Residual overvoltage U0> x x x x 81R Frequency gradient df/dt> x x x x 81O Overfrequency f> x x x x 81U Underfrequency f< x x x x 81LSH Load shedding UFLS/R x 21FL Fault locator1 FLOC x 51BF/51NBF Circuit-breaker failure 3I>/ Io >BF x x x x 78V Voltage vector shift protectiin x 79 Auto-reclosing O?I x 94 Tripping logic I?O x x x x 21, 21P, 21N Distance protection Z< x SOTF Automatic switch onto fault logic SOTF x LAL Local accelerat. Logic LAL x 85N Communication logic for residual OC CLN x 85 Scheme communic. Logic CL x 85CRW Current reversal and WEI logic CLCRW x 85NCRW Current reversal and WEI logic for residual OC CLCRWN x 49M Three-phase thermal overload protection for motors 3Ith>M x 37 Loss of load supervision 3I< x 51LR Motor stall protection Ist> x ESTART Emergency start ESTART x 49/66/48/51 LR Motor startup supervision Is2t n< x 46R Phase reversal protection I2 >> x 46M Negative-phase-sequence time overcurrent protection I2 >M x x 87NL Stabilised restricted earth-fault dIoLo> x 87NH High impedance restricted earth-fault protection dIoHi> x x 49T Three-phase thermal overload for transformers 3Ith>T x 87T Transformer differential protection for two-winding transformers 3dI>T x x 87M Stabilized differential protection for motors 3dI>M x x 87GH/MH High impedance or flux balanced differential protection 3dIHi>G/M x x 32O Directional over power protection P> x x 32U Underpower Protection x 40 Underexcitation protection X< x x 64R Rotor earth-fault protection Io>R x x 24 Overexcitation protection U/f> x x ANSI number Protection function REF 630 REM 630 RET 630 REG 630 21GT Underimpedance protection Z< GT x x 21YN Admittance-based earth-fault protection Yo> ? x 32N Wattmetric earth-fault protection Po> ? x x MAP Multipurpose analog protection x x x Rated primary current1 – 9999 A on primary transformer, rated secondary current 5A, 1A, 0,5 and 0.1 A of the primary current transformer. Rated primary voltage 0,001- 9999kV on primary transformer, rated secondary voltage 100-120 V. Power supply Uaux =100/110/120/220/240 V AC & 110/125/220/250 V DC or 48/60/110/125VDC.

Product Ratings

Not Available / To be Updated

Applicable Standards

Not Available / To be Updated