Reasonable structure and fast response time
Multiple tuning frequencies can be selected to suppress 3rd, 5th or 7th orders harmonics
Zero-crossing switching prevent voltage flicker caused by reactive power effectively
Large welding equipment, cranes, frequency converters, and other nonlinear loads requires real-time acquisition of a large amount of reactive power from the grid, resulting in increasing serious voltage fluctuations and flicker phenomena on the power grid, which has adverse effects on other equipment and control devices in the system.
The low-voltage dynamic reactive power compensation device is a power electric system based on DSP control, which can perform real-time reactive power compensation to improve system power factor, stabilize system voltage and reduce voltage flicker.
The devices are mainly used in nonlinear loads such as large welding equipment, cranes and frequency converters which need to get a large amount of reactive power from grid in real-time. The rapid change in reactive power demand in industries such as new energy vehicles and integrated circuits has caused severe flicker, requiring rapid reactive power compensation.
The device consists of Lafaelt capacitor bank, detuned reactors, power factor controllers, circuit breakers, fuses, contractors, lightning arresters, temperature controllers, fans, voltage ammeters, current transformer cabinets and other accessories
Reasonable arrangement: the capacitors is placed below the reactors to prevent them from being affected by the reactors' heating and extend their service lift
Three-phase four-wire dynamic compensation control system, the dynamic response time is 5ms, compensate changeable reactive power rapidly
Multiple tuning frequencies can be selected to suppress 3rd, 5th or 7th harmonics, to protect the capacitors and prevent system resonance
Zero-crossing switching prevent voltage flicker caused by reactive power effectively
International brand accessories: adopting high airflow fans, circuit breakers, contactors and other components from international famous manufactures like ABB, Schneider, and etc. to ensure the performance of the entire cabinet
Split structure design: the layout inside the cabinet is neat and beautiful, which is good for ventilation and heat dissipation, prolongs its service life and is easy to install and maintain
Strong universality: it covers various cabinet types such as GGD、GCK、GCS、MNS、OKKEN、BLOKSET、SIKUS、MODAN6000
With rapid engineering experience: many typical cases with rapid experience, it can achieve perfect integration with low-voltage cabinets
Precision and professional service: we supply personalized service, customized compensation scheme for special power distribution system (such as three-phase 200V system), perfectly solving reactive power compensation problems
System voltage | 220V-1000V 50Hz |
Rated capacity | 100 ~ 350kvar/cabinet (other capacity can be supplied according to needs) |
Compensation mode | Three-phase compensation, single-phase compensation and mixed compensation |
Tuning frequency | 134Hz, 189Hz |
Protection class | IP20 (other class can be supplied according to needs) |
Installation site | Indoor |
Insolution level | 3kV/1 min |
Discharge time | 50V/1min |
Temperature range | -5℃~+40℃ (the 24-hour avarange maximum is 35℃, and the annual average maximum is 25℃) |
Manufacture standard | IEC60831, EN60439-1, GB/T15576-2008,JB/T9663-1999 |
Cabinet color | RAL7035 (other color can be supplied according to needs) |
Switching by rated voltage 400V/50Hz contractor, in series with 7% filter reactor, with split-phase compensation, this is the typical combination scheme.
Power | Com Model | Loop Capacity (kvar) | Controller | Cabinet Size | ||||||||||
1a | 1b | 1c | 2a | 2b | 2c | 3 | 4 | 5 | 6 | 7 | W*H*D | |||
130 | LRTS480-130/6-7 | 10 | 10 | 10 | 25 | 25 | 50 | LPF230-12-W | 800*2200*1000 | |||||
195 | LRTS480-195/7-7 | 15 | 15 | 15 | 25 | 25 | 50 | 50 | LPF230-12-W | 1000*2200*1000 | ||||
240 | LRTS480-240/10-7 | 10 | 10 | 10 | 10 | 10 | 10 | 30 | 30 | 60 | 60 | LPF230-12-W | 1000*2200*1000 | |
300 | LRTS480-300/11-7 | 10 | 10 | 10 | 10 | 10 | 10 | 25 | 50 | 50 | 50 | 50 | LPF230-12-W | 1000*2200*1000 |
350 | LRTS480-350/11-7 | 15 | 15 | 15 | 15 | 15 | 15 | 30 | 60 | 60 | 60 | 60 | LPF230-12-W | 800*2200*1000 |
480 | LRTS480-480/20-7 | 10 | 10 | 10 | 10 | 10 | 10 | 30 | 60 | 60 | 60 | LPF230-24-W | 2*800*2200*1000 |
Remark: when the reactive power compensation cabinet is a mixed compensation cabinet, in order to ensure heat dissipation, it is recommended to divide the single cabinet with capacity over 350kvar into main and auxiliary cabinets.
Series connected 14% filter reactor with split-phase compensation, the model is LRTS525-300/11-14、LRTS525-480/20-14 main and auxiliary cabinets.
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Since its establishment, Lafaelt Electric has focused on comprehensive solutions for power quality and energy management. It has excellent quality in designing, researching, producing and manufacturing.
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