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AC GENERATOR SHORT CIRCUIT AND OVER CURRENT GUARD

AC GENERATOR SHORT CIRCUIT AND OVER CURRENT GUARD
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AC GENERATOR SHORT CIRCUIT AND OVER CURRENT GUARD - 1

Datasheet_KSQ332EJD1 (rev 1.0... - pdfMachine from Broadgun Software, http://pdfmachine.com, a great PDF writer utility! table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:4.00pt "Arial", sans-serif; } .font1 { font:5.00pt "Arial", sans-serif; } .font2 { font:6.00pt "Arial", sans-serif; } .font3 { font:7.00pt "Arial", sans-serif; } .font4 { font:10.00pt "Arial", sans-serif; } .font5 { font:11.00pt "Arial", sans-serif; } .font6 { font:17.00pt "Arial", sans-serif; } .font7 { font:25.00pt "Arial", sans-serif; } .font8 { font:8.60pt "Arial Black", sans-serif; } .font9 { font:11.00pt "Arial Black", sans-serif; } .font10 { font:12.00pt "Impact", sans-serif; } KCC115x/116x AC GENERATOR SHORT CIRCUIT AND OVER CURRENT GUARD Three phase Current Protection with VATOR, Definite time or Two level O/C trip function "PREDICTOR" function, The Blackout Preventer "Pathfinder" function eases fault finding Triple relay operation gives moreflexibility Analogue output proportional to highest phase current can be used to improve supply reliability (KCC116x versions) Optional DIN96 Slave Indicatorwith Status LEDs Spcifications Application Auxiliary Voltage: 100-120V, 200-240V, 380-415V,440-460VAC 40-70Hz Optional Auxiliary Voltage: 24,48or110VDC Current Input: 1ACT or5ACT, <0,1VA Contact rating: AC: 100VA-250V/2Amax. DC: 50W-100V/1Amax. Adjustments: Trip level O/C1: 50-150% of FLC Trip time O/C1 : 0-120Sec Trip level O/C2: 50-250% ofFLC Trip time O/C2: 0-120Sec Trip level S/C: 150-300% of FLC Trip time S/C: 0,1-1 Sec Hysteresis: Fixed 3% (O/C2 is only for H-versions) (FLC= Full Load Current) Analogue outputs: KCC116xseries mA, max 500ohm Volt, min 10kohm Temperature: -20to+70°C Weight: 0.6kgs Front protection: IP21 The digitally controlled true RMS measurement provides prcision (1,0%) three phase current protection for AC generators, motors, transformers etc. for alarms ortripping of a non-essential loadorbreaker. User settable trip levels and delays. LEDs flash during countdown and indicate the alarm status. The "Pathfinder" function identifies the phase causing the trip by the flashing pattern of the LED. KCC116x models have a fast response (<50mS) analogue output signal proportional to the HIGHEST phase current. This may be used as an input to a control system, to detect abnormal current conditions (loss of excitation etc). Complementing DIN96 Slave Indicator(MCI96) with RJ12 plug available. VATOR (Variable Time Overcurrent Release function) Versions with VATOR function have definite trip time up to 150% generator over current load. Between 150-200% the trip time will be reduced dynamically based on a calculated curve to maintain thermal capability protection and selective protection between parallelled generators. Refer to the VATOR calculation excel sheet for further details of the time release curve. PREDICTOR The main feature of the Predictor function is to open bus-tie breakers or trip heavy loads to prevent a total blackout situation. The predictor relay(s) trips at set over current (O/C) or short circuit current (S/C) level, prior to the generator breaker trip. If the overload condition is still present after this load reduction the generator breaker will trip 1 sec or 200mS later relative to set O/C or S/C time delays. The combination of VATOR and Predictor is the ultimate solution for electrical selectivity and thermal protection of parallelled generators. The unit meets IEC60092-504 and the relevant environmental and EMC tests specified in IEC60068/60092 and IEC61000/60533 respectively, to comply with the requirements of the major Classification Societies. Related information: The KCC115x and KCC116x series are also available for panel mounting as KEC115x and KEC116x series. PATHFINDER The Pathfinder indicates the phase causing an over current or short circuit trip by the flashing pattern of the relevant LED. Page 1 of 4 C驀 mQQCOn Norway -1 ark REF: Datasheet.KCC115x-116x - REV: 1.03 Megacon reserves the rightto make any changes to the information atanytime www.megacon.com

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