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Technical Data LV Power Capacitors - Type HPC Standards Overvoltage Overcurrent Rated Frequency Tolerance on Capacitance Test Voltage (Terminal-Terminal) Test Voltage (Terminal-Casing) Peak Inrush Current Operating Losses Life Expectancy Degree of Protection Ambient Temperature Category Casing Temperature Cooling Permissible Relative Humidity Maximum Allowed Altitude Installation Mounting & Earthing Safety Features Casing Dielectric Terminals Discharge Resistors / Time IEC 60831-1 + 2, EN 60831-1 + 2, VDE 0560-46+47 +10% (8h/24h), +15% (30m/24h), +20% (5m x 200 times), +30% ( 1m x 200 times) 1.5 x I n 50/60Hz -5 / +10% as per standards; ± 5% as per MKS standard 2.15 x U n (AC), 2 sec ≤ 660V, 3000V (AC), 10 sec; > 660V, 6000V (AC), 10 sec 200 x I n ≤ 0.35 W/kVAr, excluding discharge resistor loss 100,000 operating hours IP20, other options on request -25/D (maximum 55°C), other categories on request maximum 65°C measured on top of casing (other values on request) Naturally air cooled (or forced cooled) 95% 4000m above sea level Indoor, Any position Threaded M12 stud at bottom of casing Dry Technology Pressure Sensitive Disconnector for every phase Self Healing Extruded Aluminum Type Polypropylene Film Protected, Bi-directional, Three phase terminals with heavy duty clamps suitable for direct termination of 2.5 - 16 mm 2 and 4 - 35mm 2 cables Resistor Module suitable for External mounting Standard discharge time range 60 -180 seconds (maximum). Other discharge times on request NOTE: 1. The use of Capacitors in Electrical networks with Harmonic presence can result in overloads on the capacitor which are beyond the permissible levels. In addition there could also be the risk of resonance type effects which can cause amplification of electrical parameters. Consequently, care must be taken during the process of selecting and using capacitors in such networks as it may be necessary to install Reactor protected capacitor lines or Harmonic filters. 2. The use of capacitors in Automatic Power Factor Correction cabinets involves the switching of capacitors in parallel. This can result in high peak inrush currents which are beyond the permissible levels for the capacitors. Care must be taken to ensure that the correct type of switching devices must be used to ensure that peak inrush currents are within the permissible levels. 6
ULTRA High Performance Capacitors MKS TECHNOLOGY The UHPC type Power Capacitor represents a high end solution to the problem of Power Factor Correction. The output of these capacitors ranges from 2.5 kVAr to 50 kVAr. The UHPC series is a 3 phase integrated capacitor design particularly made for Power Factor Correction and Harmonic filter applications in Medium and heavy duty Industrial applications. These Capacitors feature the use of a specially designed Metallised polypropylene film as the dielectric to ensure a high working life with very low losses. The UHPC Series are Self healing Capacitors, where the Electrode layer which is a special metal alloy is vacuum deposited on to the Polypropylene film dielectric as well as given a special profile which enables superior performance in terms of withstanding overloads and very high peak currents. The 3 Phase Capacitor is internally composed of 3 Single Phase Capacitor windings assembled in an optimized geometric design. The Capacitor elements are processed under a special high vacuum process which involves the removal of moisture and any other gases followed by vacuum impregnation of the capacitor by a special gas which is non PCB and non SF6 type. This vacuum impregnation process is critical for • ensuring high capacitance stability • elimination of partial discharges • consistent chemical stability of the electrode and the dielectric The Capacitor elements are coated with a special purpose synthetic substance which ensures that the effects of impregnation are retained throughout the working life of the capacitor. The entire capacitor assembly is housed in a extruded cylindrical aluminum case and sealed with a special double seaming technology. The dimensioning of the capacitor allows for superior heat conduction particularly from the top part of the capacitor. This is a critical aspect to ensure lower temperature rise and thereby, improve the working life of the capacitor. 7
Page 1 and 2: The ilit alit inim voluptatet dit d
Page 3 and 4: MKS TECHNOLOGY Table of contents pa
Page 5 and 6: MKS TECHNOLOGY The HPC Capacitor te
Page 7: MKS TECHNOLOGY Fre- Operating Curre
Page 11 and 12: Technical Data LV Power Capacitors
Page 13 and 14: MKS TECHNOLOGY Fre- Operating Curre
Page 15 and 16: MULTIMESS 96-Light -Basic Three-pha
Page 17 and 18: REAKTIVE POWER CONTROL RELAIS MULTI
Page 19 and 20: Three-Phase Filter Reactors The inc
Page 21 and 22: MEASURING DEVICES, NETWORK ANALYSER
Page 23 and 24: Reactive power control systems Modu
Page 25 and 26: Non reactor protected power factor
Page 27 and 28: Visualization Software for Power En
Page 29 and 30: Notes 28
Page 31: MKS Technology GmbH Am Kiefernschla

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