Power factor correction Static switching units (Three phase).
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1 Power factor correction Static switching units (Three phase). Automatic capacitor banks with static system. JK JAKI
2 JK3PSZT-XXXXX Automatic capacitor banks with static system. Introduction Selection table JK3PSZT Static switching units (three-phase) Dimensions 5~7 1
3 Automatic capacitor banks with static system Automatic capacitor banks with static system. JK3PSZT-XXXXX The all series capacitor banks with static system have been designed for Power factor correction purposes in networks with fluctuating loads. The variations in power are relatively fast (in milliseconds) so that the switching operations are carried out by thyristors, which are connected to a voltage control board, so that the connection and disconnection of the capacitor is carried out with a zero voltage difference. Transients are prevented between the connection and disconnection of steps, obtaining the immediate response to the load fluctuations. Functions and advantages of capacitor banks with a static system The functions or advantages of this compensation system are as follows: Immediate response to the compensation request. The response time of the Power factor correction can be of a single network frequency cycle, thus achieving an almost instantaneous compensation. The lack of transients in the connection allows us to eliminate gaps, flicker and any other alteration generated by the connection's transient. Limited switching operations Lower wear of capacitors and switching elements, due to the elimination of transients and the total absence of mobile mechanical parts. This is how we can greatly increase the working life of the unit, as compared to conventional electromechanical contactor units. Connection of a static capacitor bank Static capacitor banks are usually connected to the general switchboard or secondary switchboards in the case of large-scale installations. Elimination of start-up transients produced by the capacitor's connection. The connection takes place when the voltage network matches that of the capacitor when it is partially or totally loaded. Regulation mode CONVENTIONAL REGULATION STATIC REGULATION Fig.1 20ms 8s Time(s) 2 JKwww.jaki.com.tw
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5 JK3PSZT-XXXXX Static switching units (three-phase) Description The static switching modules of the JK3PSZT series are the basic building block for the construction of staticcapacitor banks for power factor correction purposes. These capacitor banks use thyristors instead of the classic contactors for the connection of each large group of capacitors and they are ideal in installations where the leakage current suffers quick and large fluctuations (load changes in intervals that can range from split seconds to 8 or 10 seconds). Features Features Standard voltages Frequency Auxiliary voltage Overload capacity Input control signal Protections Fuses Thermostat du / dt 208~240, 380~480, 500~600VAC± 10% 47~63 Hz 220VAC± 15% 1.5 In during 1 min AC control, 220VAC± 15%. Contact control. DC control, 12-24VDC. Bussmann or Hinoda di / dt RC protection at 1000 V/ μs A/ μs (L=12 μh, not included, it must be installed in series with the capacitor) Automatic fan Heat sink 55 start, 45 stop Application The static switching units of the JK3PSZT Series have been designed to connect and disconnect capacitors in milliseconds. Ambient conditions Maximum ambient temperature Maximum temperature of the dissipator Construction features Degree of protection IP00 They can be used to build capacitors with various steps, or for the individual compensation of a load that must be compensated instantly due to connection / disconnection deficiencies, for example, in welding units, cranes, lifts, etc. Standards IEC6015-2, EN , EN JKwww.jaki.com.tw
6 Dimensions 142mm 5mm 150mm 220mm 154mm 30mm 142mm 135mm P.1 142mm 5mm 150mm 243mm 154mm 30mm FAN FAN 142mm 135mm P.2 5
7 Dimensions 141mm 5mm 190mm 305mm 172mm 40mm FAN 141mm 133mm P.3 141mm 240mm 365 mm 200 mm 40mm FAN 135mm P mm 46 JKwww.jaki.com.tw
8 Dimensions 263mm INPUT 6mm 168mm 168mm 400mm 210mm 31mm LOAD 242mm P.5 263mm 306mm INPUT 6mm 200mm 200mm 527mm 244mm 62 mm LOAD 288mm 306mm P.6 7
9 Functional block Diagram Power input Power supply. Fuse Fuse Fuse Zero point input controller. 55 C fan working circuit and over temperature check. Error signal indicates. Load (capacitor) Fuse open check circuit. On the heat sink temperature sensor. 84 JKwww.jaki.com.tw
10 Automatic capacitor banks with static system. JAKI Enterprise Co., Ltd. No.11, Lane2 Rencih St., Dali City, Taichung City Taiwan TEL: FAX: JK 9
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