Page 5 - 200.003-020017

MKPg-Druck_fürweb.qxp 13.09.2012 09:26 Seite 2 CAPACITORS AND REACTORS – GENERAL TECHNICAL DATA Along with the common standard-rated reactors (for the usual range A reactor with adjusted rating is considering this internal voltage MKPg-Druck_fürweb.qxp 13.09.2012 09:26 Seite 3 of capacitors) we offer a range of special reactors which, combi- rise inside the series circuit of capacitor/reactor, and is matched ned with properly-rated capacitors, produce exactly the required to a specially dimensioned capacitor with reduced capacitance. MKPc™ kvar output at mains voltage, allowing for reduced size and cost of Advantage: The exact power is installed as required by the your installation. customer, and switching devices are stressed less. Both capacitor design pressed aluminium can with stud M12 x 16, aluminium lid The kvar output of a capacitor depends on the voltage it is charged and reactor are smaller than the non-adjusted solution. Note that exact internal connection delta with. At higher voltage, equal capacitance delivers more kvar. sizing of the capacitor is necessary. tolerance of capacitance – 5 ... + 10% A “non-adjusted reactor” is matched to a power capacitor with stan- terminals three phase terminal, two M4 screws per phase dard rating at system voltage. This allows for use of capacitors “off For more detailed information, please order our comprehensive catalogue safety device BAM (overpressure break action mechanism) TM “Capacitors and Reactors for Power Factor Correction”. the shelf”, however with the increased output of kvar due to volta- dielectric material low-loss polypropylene, dry ge rise inside the LC circuit, more power output is installed than impregnant (filling material) N 2 actually required by the customer. mounting position any position permitted overvoltages and test voltages see data charts for details maximum permissible current at least 1.3 I N, see data charts for details max. inrush current 300 x I N dissipation losses approx.. 0.25 … 0.40W/kvar GOOD CAPACITORS max. relative humidity 95% PFR-X POWER FACTOR CONTROLLER max. altitude 4000m a.s.l. ALONE WON’T DO ambient temperature class – 40°/D (max. 55°C, average 24h: 45°C) statistical life expectancy* (*permitted failure rate ≤ 3%) > 100 000 h standards IEC 60831 (2003), VDE 0560-46/47 The PFR-X power factor controller calculates the active and reac- The rated mains voltage is the only value to be entered before UL Standard No. 810, CSA C22.2 No. 190-M1985, tive power in the mains from the measured current and voltage. The commencing operation of the PFR-X. Without this entry, the GOST 1282-88, ISI 13340/13341 intelligent control algorithm optimizes the switching sequences and controller blocks operation to protect the capacitors. All other approval marks (type S capacitors only) guarantees for short regulation times with minimum number of swit- relevant parameters have been preset by the manufacturer for imme- chings. At the same time, switching operations are equally shared diate start of operation in nearly any common configuration. Individual among the available capacitor branches where possible. The inte- adjustment and optimization of the control parameters is possible grated connection control immediately detects in which phases at any time, even during operation of the equipment. voltage and current are measured, and adapts the entire system The controller will operate correctly even if the value of the FK-Dr™ automatically. The very low current threshold of 10mA allows for current transformer ratio has not been entered. It monitors the very reliable and exact PF control. 1A as well as 5A current trans- temperature inside the capacitor cabinet by means of an integrated design three phase, iron core with multiple air gaps, IP00 formers can be used without additional manual adjustments. The power sensor. tolerance of inductance – 3 ... + 3% supply covers a voltage range of 90...550V. terminals copper lugs; cables available on request For more detailed information, please order our comprehensive catalogue winding material aluminium band or copper winding “Capacitors and Reactors for Power Factor Correction”. safety device thermal switch (125°C ± 5K) impregnant polyester resin Class F current linearity 7%: 1.5 x I N, higher values on request 5.67%: 1.8 x I N, higher values on request MAKE SURE permitted harmonic load U3 = 0.5% U N SPECIAL CAPACITOR CONTACTORS U5 = 6.0% U N IT WORKS U7 = 5.0% U N U11 = 3.5% U N U13 = 3.0% U N The contactors of the 17237.004 series have been optimized for butes to the high reliability and long operational life of our insulation voltage winding to core 3kV switching low-inductive and low loss capacitors in capacitor banks contactors. max. relative humidity 95% (IEC70 and 831, VDE 0560) without and with detuning reactors. They temperature class T40 are fitted with pre-load contacts and damping resistors, in order to Since the disconnection of inductive loads is usually accompanied statistical life expectancy ( permitted failure rate ≤ 3% ) > 200 000 h drastically reduce the inrush current, thus protecting the capacitors by switch arcs, the pre-load contacts of mechanical capacitor con- standards EN61558-2-20:2000, VDE 0570-2 from destructive current surges, and the main contacts from tactors are often facing trouble when used with reactor-capacitor com- approval marks premature deterioration or welding. binations (detuned capacitors) as they are lagging behind the main contact during the switch-off process. The contactors of our 17237.004 Unlike most capacitor contactors which are using a mechanical prin- series are not affected by this problem as their pre-load contacts ciple for switching the pre-load contacts, the 17237.004 series swit- are already out of circuit. Hence they can be used for both detuned ches them by separate magnetic controls. As soon as the main and non-detuned capacitor installations. ELECTRONICON strongly switch has been closed, the pre-load contacts are released again recommends the usage of contactors with pre-load contacts even and its resistor wires taken out of circuit after no more than 5…10ms for detuned capacitors in order to prevent ferro-resonances of the reac- of operation. This avoids additional heat losses in the resistor wires tor during the start-up period. during the operation of the connected capacitor branch, and contri- 2 3