ZDDQ low voltage automatic capacitor banks and Harmonic Filters improves power factor in systems with variable energy demand and non-linear loads, therefore, with variable reactive load needs.
Equipped with a power factor controller to regulate their automated operation and monitoring features, ZDDQ automatic capacitor banks remove power factor charges of the electricity bill and reduce the losses of electrical equipment and wiring.
Overview
ZDDQ Low Voltage Capacitor Banks and Harmonic Filters provide a cost-effective, user friendly, reliable solution for power factor correction. They are a more efficient alternative to individual motor capacitors, especially in large industrial facilities. ZDDQ units are designed to provide power factor correction with a single installation on the main plant bus and are ideal for applications where plant loading is constantly changing, resulting in the need for varying amounts of reactive power. The solid state reactive power controller reacts to a current signal from a single remote current transformer (customer's scope), measures plant power factor and adjusts system load requirements in selected kVAr steps in order to maintain the desired target power factor.
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| Metal closed capacitorf banks and harmonic filters | Three phase line diagram of capacitor banks and harmonic filters |
General Characteristics
Advantages◆High rupturing capacity (HRC) fuses connected to a busbar system.
◆Contactors/Thyristors specially adapted to the work with capacitors.
◆Inrush current limiting inductances.
◆Fast discharge resistors.
◆Low losses power capacitors.
◆Reactive power controllers.
◆Terminals for neutral and ground conductors.
◆Metal cabinet containing all the switchgear.
Specifications◆Equipments wired and tested at works, full finished and supplied with all control and safety devices.
◆Easy transportation and installation due to their light weigh.
◆Easy selection of the most appropriate cos φ to avoid penalty charges on tariffs.
◆Long life and high reliability, thank to the use of self-healing and low losses capacitors.
◆Wide range of power (from 10 to 1600 kvar) with standard equipments for immediate delivery.
◆Option of including various accessories.
| Electrical Specification | |
| Factory Mode | Low voltage auto capacitor banks and harmonic filters |
| Ratedf Voltage | 400V,440V,690V |
| Electric Connection | 3 phase 4 wire |
| Rated Frequency | 50/60Hz |
| Rated Capacity Per Cabinet | 100kvar~400kvar |
| Steps Design | Customerized |
| Reactance | 7% or customerized |
| Response time | Thyristor <20ms,Contactors<60ms |
| Compensation mode | Automatic 3 phase compensation or Single Phase compensation |
| MTBF | >100,000 hours |
| Power Factor Controller | ZD-MTCB |
| Physical Specification | |
| IP Grade of Cabinet | IP30 |
| Color | RAL7035 |
| Dimension(W*D*H)mm | 1000*1000*2200 |
| Weight (kg) | 400 |
| Environmental Requirement | |
| Ambient Temperature | -10~50 ℃ |
| Relative Humidity | 0~95% |
| Altitude | ≤ 1500m Rated Capacity |
Applicaitons
ZDDQ Capacitor banks and harmonic filters are widely used for fluctuating loads such as motors, variable frequency drives, melting furnace from Steel Rolling mills,Chemical industry,Cement plant, Suger plant, Textile, Hospitals, Hotels, Building segment,Automobile industry,Oil and gas industry,public grid etc.
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