Catalog excerpts
Introduction & Benefits Pomanique’s ZX-Series three-phase, electronically controlled, vacuum- interrupting distribution automation switch provides reliable, economical switching, sectionalizing, advanced metering, and automation systems for distribution circuits rated up to 38 kV. Long life and low maintenance Magneticactuatorsandsuperiordesignallowpomanique’s recloserstooperateforarated10,000fullloadoperations. Lessmovingparts=lessmaintenancefor25years. High reliability The ZX switch combines solid cycloaliphatic- epoxy vacuum interrupters with a reliable, lightweight operating mechanism...
Open the catalog to page 2Switch unit description Recloser principle Reclosersareusedinoverheadlinesandinsubstations.Likecircuit-breakers theyarecapableofswitchingnormalandfaultcurrents.Theyareequipped withsensorsandcontrollerbeingtheprotectionandcontroldevice.Incase of a temporary line fault, they can trip and reclose up to four times, thus avoidinglongernetworkinterruptions. Recloser cycle Incaseofanetworkfault,therecloseropensandreclosesseveraltimes.In case of temporary faults, the automatic reclosing significantly reduces the outage times. While the trip settings for each operation can be set individually....
Open the catalog to page 3Controller description TheMicroprocessorBasedcontrollerprovideprotection,control,monitoring, instrumentation and metering with integrated input and output logic, data logging&faultreports. Communication access to controller functionality is via electrical RS485 port for remote connection. Additional rear port options including RS232 port is available. Thecontrollerismountedinthecontrolcubicle.Alongwiththecontroller,this cubicle also contains the auxiliary power supply with batteries for uninterruptiblepowersupply,electronicboardsandcircuitbreakers. The controller contains a large number of...
Open the catalog to page 4General Protection Features Operating sequence Sensitive Earth Fault (SEF) PickupI0:0.1~20A(step:0.1A) Reclose times are selectable. The operating sequence is V0:10~80%(step:1%) definedby: OperatingAngle:0~345°(1°step) O-1strt-CO-2ndrt-CO-3rdrt–CO OpeartingTime:0.1~30sec(step:0.1sec) Reclose times Phase,Ground,SEFInrushBlock:1(yes)/0(no) Phase & Ground Fault PickupLevel:10~2000A(step:1A) Open Line (Loss of Phase) Detection VoltageOnLevel:50~90%(step:5%)ofratedvoltage VoltageOffLevel:35~75%(step:5%)ofratedvoltage DelayTime:0.1~30.0sec(step:0.1sec) Synchronism Check Negative Sequence...
Open the catalog to page 5General Protection Features Commmunication Interface Recording Events On FRTU left-side (inside the inner door) Fault Waveform Load Profiling Baud Rate Local / Remote : Control Position (only locally changeable) Open/Close : Switch Body Status Change Command DO (Direct Operate) and SBO (Select Before Operate) On FRTU Front Panel Reset : Annunciator Manual Reset Command Battery Test : Battery & Charger Circuit Check Protection Function Blocking User Configurable DO Points (reserved) : 2 ProtocolMonitor(CommunicationFrameCheck) Real-timeDisplay:MeasurementandStatusData...
Open the catalog to page 6Max. interrupting time / max. closing time Cable charging current Line charging current Minimum clearance, phase-to-earth Clearance, phase-to-phase Creepage distance, phase-to-earth Impedance μΩ between connections Rated lightning impulse withstand voltage Up kV Rated short-duration P.F. withstand voltage Rated short-circuit making current Ima kA Rated duration of short-circuit Rated continuous current Rated short-circuit breaking current Technical data
Open the catalog to page 7Pole mount Substation mount F.14, Building 3, Headquarter Economic Park, No. 6688 Xuyang Rd., Yueqing, Zhejiang, China
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